Daikin RXYQ5PY1 Service Manual

Daikin r-410a heat pump 50hz/60hz cooling only 50hz.
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Service
Manual
Design, Installation & Testing Instruction
R-410A Heat Pump 50Hz/60Hz
Cooling Only 50Hz
SiEN34-705
RXYQ5PY1(E)
RXYQ5PYL(E)
RXYQ8PY1(E)
RXYQ8PYL(E)
RXYQ10PY1(E)
RXYQ10PYL(E)
RXYQ12PY1(E)
RXYQ12PYL(E)
RXYQ14PY1(E)
RXYQ14PYL(E)
RXYQ16PY1(E)
RXYQ16PYL(E)
RXYQ18PY1(E)
RXYQ18PYL(E)
RXYQ20PY1(E)
RXYQ20PYL(E)
RXYQ22PY1(E)
RXYQ22PYL(E)
RXYQ24PY1(E)
RXYQ24PYL(E)
RXYQ26PY1(E)
RXYQ26PYL(E)
RXYQ28PY1(E)
RXYQ28PYL(E)
RXYQ30PY1(E)
RXYQ30PYL(E)
RXYQ32PY1(E)
RXYQ32PYL(E)
RXYQ34PY1(E)
RXYQ34PYL(E)
RXYQ36PY1(E)
RXYQ36PYL(E)
RXYQ38PY1(E)
RXYQ38PYL(E)
RXYQ40PY1(E)
RXYQ40PYL(E)
RXYQ42PY1(E)
RXYQ42PYL(E)
RXYQ44PY1(E)
RXYQ44PYL(E)
RXYQ46PY1(E)
RXYQ46PYL(E)
RXYQ48PY1(E)
RXYQ48PYL(E)
RXYQ50PY1(E)
RXYQ50PYL(E)
RXYQ52PY1(E)
RXYQ52PYL(E)
RXYQ54PY1(E)
RXYQ54PYL(E)
RXQ5PY1
RXQ8PY1
RXQ10PY1
RXQ12PY1
RXQ14PY1
RXQ16PY1
RXQ18PY1
RXQ20PY1
RXQ22PY1
RXQ24PY1
RXQ26PY1
RXQ28PY1
RXQ30PY1
RXQ32PY1
RXQ34PY1
RXQ36PY1
RXQ38PY1
RXQ40PY1
RXQ42PY1
RXQ44PY1
RXQ46PY1
RXQ48PY1
RXQ50PY1
RXQ52PY1
RXQ54PY1

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   Summary of Contents for Daikin RXYQ5PY1

  • Page 1

    SiEN34-705 Service Manual Design, Installation & Testing Instruction R-410A Heat Pump 50Hz/60Hz Cooling Only 50Hz RXYQ5PY1(E) RXYQ5PYL(E) RXQ5PY1 RXYQ8PY1(E) RXYQ8PYL(E) RXQ8PY1 RXYQ10PY1(E) RXYQ10PYL(E) RXQ10PY1 RXYQ12PY1(E) RXYQ12PYL(E) RXQ12PY1 RXYQ14PY1(E) RXYQ14PYL(E) RXQ14PY1 RXYQ16PY1(E) RXYQ16PYL(E) RXQ16PY1 RXYQ18PY1(E) RXYQ18PYL(E) RXQ18PY1 RXYQ20PY1(E) RXYQ20PYL(E) RXQ20PY1 RXYQ22PY1(E)

  • Page 3: Table Of Contents

    SiEN34-705 R-410A Series Part 1 General Information ............1 1. Product Outline ..................2 1.1 Model Names of Indoor/Outdoor Units.............2 1.2 External Appearance................3 1.3 Combination of Outdoor Units ..............6 1.4 Model Selection..................10 2. Points to Bear in Mind at the System Design........12 2.1 Points Relating to the Performance of the Air Conditioning Units ..12 2.2 The Installation is of Vital Importance ............14 2.3 Striking a Balance between System Installation and General Construction...

  • Page 4: Table Of Contents

    SiEN34-705 Part 2 Installation Manual ............213 1. Heat Pump / Cooling Only 50Hz (RX(Y)Q5~54P).......214 1.1 First of All .....................215 1.2 Introduction...................218 1.3 Selection of Location ................222 1.4 Inspecting and Handling the Unit ............224 1.5 Placing the Unit ..................225 1.6 Refrigerant Piping.................226 1.7 Field Wiring ..................238 1.8 Air Tight Test and Vacuum Drying ............246 1.9 Pipe Insulation..................248...

  • Page 5: Table Of Contents

    SiEN34-705 each Switch and Display (Refer to figure 2 and 3) ....323 2.5 Operation Range ............... 324 2.6 Operation Procedure ..............324 2.7 Optimum Operation ..............328 2.8 Seasonal Maintenance .............. 328 2.9 Following Symptoms are not Air Conditioner Troubles....328 2.10 Trouble Shooting ...............

  • Page 6

    Please be sure to read this manual thoroughly before starting installation work in order to ensure that all such work is carried out with maximum efficiency and to maximum effect. The following technical documents are also available from Daikin. Please use these documents together with this manual to conduct efficient servicing.

  • Page 7: Part 1 General Information

    SiEN34-705 Part 1 General Information 1. Product Outline ..................2 1.1 Model Names of Indoor/Outdoor Units.............2 1.2 External Appearance................3 1.3 Combination of Outdoor Units ..............6 1.4 Model Selection..................10 2. Points to Bear in Mind at the System Design........12 2.1 Points Relating to the Performance of the Air Conditioning Units ..12 2.2 The Installation is of Vital Importance ............14 2.3 Striking a Balance between System Installation and General Construction Work (Comprehensive Flow Chart) .....15...

  • Page 8: Product Outline, Model Names Of Indoor/outdoor Units

    Product Outline SiEN34-705 1. Product Outline Model Names of Indoor/Outdoor Units Indoor Units Type Model Name Power Supply Ceiling Mounted FXCQ — 125M — — Cassette Type (Double Flow) Ceiling Mounted FXFQ — 100M 125M — — Cassette Type (Multi Flow) 600×600 Ceiling FXZQ —...

  • Page 9: External Appearance

    SiEN34-705 Product Outline External Appearance 1.2.1 Indoor Units Heat Pump: 50Hz/60Hz, Cooling Only: 50Hz Ceiling Mounted Cassette Type (Double Flow) Ceiling Suspended Type FXCQ20M FXHQ32MA FXCQ25M FXHQ63MA FXCQ32M FXHQ100MA FXCQ40M FXCQ50M FXCQ63M FXCQ80M FXCQ125M Ceiling Mounted Cassette Wall Mounted Type Type (Multi Flow) FXAQ20MA FXAQ25MA...

  • Page 10

    Product Outline SiEN34-705 1.2.2 Outdoor Units Heat Pump: 50Hz/60Hz, Cooling Only: 50Hz Normal Series (Space Saving Series) RXYQ5P RXYQ5P RXYQ8P, 10P (12P: EUROPE) RXYQ8P, 10P(12P:EUROPE) RXYQ12P, 14P, 16P, 18P RXYQ12P, 14P, 16P, 18P RXQ5P RXQ8P, 10P RXQ12P, 14P, 16P,18P 8, 10HP 12, 14, 16, 18HP RXYQ5P RXYQ8P, 10P (12P: EUROPE)

  • Page 11

    SiEN34-705 Product Outline High COP Series (Energy Saving Series) RXYQ16PH, 18PH RXYQ24PH, 26PH RXYQ5P RXYQ8P, 10P (12P: EUROPE) RXQ16PH, 18PH RXQ24PH, 26PH 16, 18HP 24, 26HP RXYQ28PH, 30PH RXYQ5P RXYQ8P, 10P (12P: EUROPE) RXYQ32PH, 34PH RXQ32PH, 34PH RXQ28PH, 30PH 28, 30HP 32, 34HP RXYQ36PH, 38PH, 40PH, 42PH, 44PH, 46PH, 48PH, 50PH RXQ36PH, 38PH, 40PH, 42PH, 44PH, 46PH, 48PH, 50PH...

  • Page 12: Combination Of Outdoor Units

    24HP 26HP 28HP BHFP22P100 30HP 32HP 34HP 36HP 38HP 40HP 42HP 44HP 46HP BHFP22P151 48HP 50HP 52HP 54HP Note: For multiple connection of 20HP system or more, an optional Daikin Outdoor Unit Multi Connection Piping Kit is required. General Information...

  • Page 13

    16HP BHFP22P100 18HP 24HP 26HP 28HP 30HP 32HP 34HP 36HP BHFP22P151 38HP 40HP 42HP 44HP 46HP 48HP 50HP Note: For multiple connection of 16HP system or more, an optional Daikin Outdoor Unit Multi Connection Piping Kit is required. General Information...

  • Page 14

    Product Outline SiEN34-705 Connectable Indoor Unit Type Model Name Power Supply Ceiling Mounted FXCQ — 125M — — Cassette Type (Double Flow) Ceiling Mounted FXFQ — 100M 125M — — Cassette Type (Multi Flow) 600×600 Ceiling FXZQ — — — —...

  • Page 15

    SiEN34-705 Product Outline Differences from Conventional Models Differences Item Object New model (P Model) Conventional model (MA Model) " NONE Compressor Connection of equalizer oil pipe (No particular changes in " YES terms of service) Equalizer oil pipe for multi- "...

  • Page 16: Model Selection

    Product Outline SiEN34-705 Model Selection VRV III Heat Pump: 50Hz/60Hz, Cooling Only: 50Hz Connectable indoor units number and capacity Normal Series 10HP 12HP 14HP 16HP 18HP System name RX(Y)Q5P RX(Y)Q8P RX(Y)Q10P RX(YQ12P RX(YQ14P RX(YQ16P RX(YQ18P Outdoor unit 1 RX(Y)Q5P RX(Y)Q8P RX(Y)Q10P RX(Y)Q12P RX(Y)Q14P...

  • Page 17

    SiEN34-705 Product Outline High COP Series (Energy Saving Series) 16HP 18HP System name RX(Y)Q16PH RX(Y)Q18PH Outdoor unit 1 RX(Y)Q8P RX(Y)Q8P Outdoor unit 2 RX(Y)Q8P RX(Y)Q10P Outdoor unit 3 – – Total number of connectable indoor units Total capacity of connectable 22.40~58.24 25.20~65.52 indoor units (kW)

  • Page 18: Points To Bear In Mind At The System Design

    Points to Bear in Mind at the System Design SiEN34-705 2. Points to Bear in Mind at the System Design Points Relating to the Performance of the Air Conditioning Units A number of points need to be borne in mind at the system design stage in order to ensure the mechanical efficiency of the air conditioning units.

  • Page 19

    SiEN34-705 Points to Bear in Mind at the System Design 3. Positioning of indoor unit ! Position such that maintenance and repairs can be carried out. (inspection port positions and size check) ! Avoid short circuiting ! Ensure sufficient drain pipe gradient (need for drain-up kit etc.) ! In the case of a ceiling mounted type make sure ceiling depth is sufficient (need for high performance filter, etc.) General Information...

  • Page 20: The Installation Is Of Vital Importance

    Points to Bear in Mind at the System Design SiEN34-705 The Installation is of Vital Importance The analysis of major installation problems experienced is shown below; 37.5% Wrong interconnection wiring 15.9% Wrong setting of switches 8.5% Wrong power line wiring 6.8% Improper field piping 6.1%...

  • Page 21: 2.3 Striking A Balance Between System Installation And General Construction

    SiEN34-705 Points to Bear in Mind at the System Design Striking a Balance between System Installation and General Construction Work (Comprehensive Flow Chart) Air conditioning Construction work work Determination of division of work Settling operational details Settling sleeve and insert work details Preparation of contract drawings Fitting of steel sleeves Molding box and...

  • Page 22

    Points to Bear in Mind at the System Design SiEN34-705 Points to Bear in Mind when Preparing the Contract Drawings The following points should be borne in mind when preparing the contract drawings from the original drawings and the execution drawings. The contract drawings for the air conditioning system are blueprints for the performance of the necessary work which are drawn up on the basis of the original drawings in such a way that a working balance is achieved between the specific requirements of each individual aspect of the...

  • Page 23

    SiEN34-705 Points to Bear in Mind at the System Design 2.4.2 Main Considerations in Preparation of Control Circuit Diagrams In addition to the design of the appropriate this system configuration it is also essential that the control system be made amply clear. If the system is designed and installed without a clear, comprehensive plan then problems are inevitably going to occur during the test run.

  • Page 24

    Points to Bear in Mind at the System Design SiEN34-705 Step 2: The following sequence should be followed in order to prepare control circuit diagrams in Preparation of the accordance with the system list which has already been completed: 1 Diagrams should be prepared for each individual outdoor unit. The outdoor unit model Control Circuit number should be inserted into the diagram.

  • Page 25: Installation, Step By Step Installation Procedure

    SiEN34-705 Installation 3. Installation Step by Step Installation Procedure < Operations > < Points> Determination of division of work Prework Indicate clearly who is to be responsible for switch settings. Preparation of contract drawings Make relationship between outdoor, indoor, remote control and option connections clear.

  • Page 26: Work Involved In Individual Operations And Points To Be Borne In Mind

    Installation SiEN34-705 Work Involved in Individual Operations and Points to be Borne in Mind 3.2.1 Sleeve and Insert Work ! Operational steps Preliminary talks Determine with position, size and Carry out work Check work construction number of units company required (V0957) Positioning of the a) The through holes for the drain piping should be positioned such that the pipes have a...

  • Page 27: Installation Of Indoor Unit

    SiEN34-705 Installation 3.2.2 Installation of Indoor Unit ! Operational steps Determine Mark installation Fit suspension Fit indoor unit installation position bolts position (V0960) Positioning 3 essential points when installing an indoor unit 1. Height: Take care to account for final ceiling facing surface level 2.

  • Page 28: Refrigerant Pipe Work

    Installation SiEN34-705 3.2.3 Refrigerant Pipe Work ! Operational steps Fit pipes Install indoor unit Cut pipes to size Replace nitrogen provisionally Solder Flushing Air tight test Vacuum drying (V0963) The 3 Principles The “3 principles of refrigerant piping” must be strictly observed of Refrigerant Cause of problem Actoin to avoid problem...

  • Page 29

    SiEN34-705 Installation Method for If brazing work is carried out without passing nitrogen gas through the pipes which are being Replacing brazed then this allows the formation of oxidation bubbles on the inside surface of the pipes. These oxidation bubbles are then carried along inside the pipes to cause damage to various Nitrogen members of the system such as valves or compressors and the system ceases to function (Brazing)

  • Page 30

    Installation SiEN34-705 Covering of Covering is an extremely important operation as it prevents water, dirt or dust from Refrigerant Pipes getting inside the pipes. Moisture inside the pipes was a constant source of trouble in the past. The utmost care is required to nip this problem in the bud. The end of each pieces of pipe must be covered.

  • Page 31

    SiEN34-705 Installation Refrigerant Pipe Flushing Flushing is a method of cleaning extraneous matter out of pipes using pressurized gas. [3 major effects] 1. Removal of oxidation bubbles formed inside copper pipes when “nitrogen replacement is insufficient” during soldering work 2. Removal of extraneous material and moisture from pipes when covering has been insufficient 3.

  • Page 32

    Installation SiEN34-705 (The nature and amount of the extraneous material inside the pipe can be checked during flushing by placing a rag lightly over the end of the pipe. In the unlikely case that even a small quantity of moisture is found then the inside of the pipe should be dried out thoroughly.) Action: 1.

  • Page 33

    ! Joints must meet the requirements of the relevant JIS standard. (Size, materials, thickness, etc.) 2. Special branches ! The Daikin outdoor unit multi connection kit, REFNET joint, REFNET header or Reducing socket should be used. Example: R-410A RXYQ-P Series...

  • Page 34

    Installation SiEN34-705 c) Brazing The Multi-System requires only copper/copper jointing and the jointing method is explained below. ! The use of “hard solder” is essential. Example Flux Remarks Jointing Soldering Breaking Type Soldering: Solder: distance (example method strengh JIS mark temperature reference (mm)

  • Page 35

    SiEN34-705 Installation Brazing a) Brazing work should be carried out such that the final result is directed either downwards or sideways. An upward direction should be avoided wherever possible. (to prevent leakage) Recommended method Solder Burner Side facing Downward facing Upward facing b) Liquid and gas pipe branches should always be dealt with in the specified way with attention being paid to the direction of the fitting and its angle.

  • Page 36

    Installation SiEN34-705 Flare Connection (a) Stiffened pipe must always be annealed at least once prior to the flaring work. (b) A pipe cutter must be used to cut the pipe. (A large pipe cutter must be used where the pipe has a large diameter.

  • Page 37

    SiEN34-705 Installation Important points 1. Burrs should be carefully removed. 2. 2 spanners should be used to grip the flare nuts. 3. The flare nut must be inserted before starting the flaring operation. 4. The appropriate amount of torque should be used to tighten the flare nut. Standard torques for tightening flare nut ±...

  • Page 38

    Installation SiEN34-705 Flaring Procedure ➄ Clean the inside of the pipe. ➀ Cut the pipe using a pipe cutter. (Use a thin stick with a cloth wrapped around it.) ➅ Before flaring, clean the cone section of the flaring ➁ The cut edge has burrs. tool.

  • Page 39

    SiEN34-705 Installation ➉ Check for gas leaks. ➈ Tighten the flare nut. (Check at the threaded section of the flare nut for (Use a torque wrench to apply the proper gas leaks.) tightening force.) Spray-type gas leak detecting products are available on the market.

  • Page 40

    Installation SiEN34-705 Flange a) The flange sheet surface should be clean and undamaged. (Clean any dirt away with a cloth Connection and check that there has been no damage.) b) Coat the flange sheet surface with refrigeration oil (Ester or ether oil) and then insert the packing.

  • Page 41

    SiEN34-705 Installation 3.2.4 Thermal Insulation Work (Refrigerant Piping) ! Operational steps Insulation (with Insulation Refrigerant pipe the exception of Air tight test (jointed areas) work the jointed areas) (V0985) Materials The thermal insulation materials which are used must be well able to withstand the heat from the pipes.

  • Page 42

    Installation SiEN34-705 3.2.5 Air Tight Test ! Operational steps Pressurize Check for pressure drop Success Complete refrigerant pipe installation work Locate and repair leaks (V0987) Essential Points The key to successful testing is strict adherence to the following procedure: of Testing a) The liquid and gas piping in each refrigerant system should be pressurized in turn in accordance with the following steps.

  • Page 43

    SiEN34-705 Installation b) Check for pressure drop If there is no drop in pressure then the test is deemed a success. If the pressure drops then the leak must be located. See following page. However, if there is a change in the ambient temperature between the pressurizing stage and the time when you check for a drop in pressure then you will have to adjust your calculations accordingly since a change of 1°C can account for a pressure change of approximately 0.01MPa.

  • Page 44

    Installation SiEN34-705 Checking for [Check 1] (Where pressure falls while carrying out Steps 1 to 3 described on previous page) Leaks ! Check by ear..Listen for the sound of a major leak. ! Check by hand..Check for leak by feeling around jointed sections with hand. ! Soap and water check (∗Snoop)..Bubbles will reveal the presence of a leak.

  • Page 45: Vacuum Drying

    SiEN34-705 Installation 3.2.6 Vacuum Drying What is vacuum Vacuum drying is: drying? “The use of a vacuum pump to vaporize (gasify) the moisture (liquid) inside the pipes and expel it leaving the pipes completely dry inside.” At 1 atm (760 mmHg) the boiling point (evaporating temperature) of water is 100°C but if a vacuum is created inside the pipes using a vacuum pump then the boiling point is rapidly reduced as the degree of the vacuum is increased.

  • Page 46

    Installation SiEN34-705 Choosing a General Vacuum Pump Refrigerant piping content volume of the VRV III R-410A Series is larger than the VRV Inverter Series, and consequently takes more time for vacuum drying. If you have time to spare, you may use the same vacuum pump, but if you want to save time, you will have to use a pump with higher exhaust velocity (exhaust volume).

  • Page 47

    SiEN34-705 Installation (2) Degree of vacuum Ultimate vacuum varies largely according to use of the vacuum pump. Vacuum pumps used for vacuum forming cannot be used for vacuum drying. (A vacuum pump with a high degree of vacuum is required.) When selecting a vacuum, you should select one which is capable of achieving 0.2 Torr of ultimate vacuum.

  • Page 48

    Installation SiEN34-705 4. Calibration method 1. Connect a Pirani vacuum gauge and the gauge manifold vacuum gauge (0 - 760 mmHg) to the vacuum pump at the same time, and run the pump for about 3 minutes. 2. Make sure the reading of the Pirani vacuum gauge is 5 Torr (667 Pa) or less. The reading of conventional vacuum pumps lowers to about 0.2 Torr.

  • Page 49

    SiEN34-705 Installation Vacuum Drying There are two vacuum drying methods and the appropriate one should always be chosen to Procedure conform with individual local conditions. [Normal vacuum drying]..The standard method [Operational steps] 1. Vacuum drying (1st time): Connect a manifold gauge to the service port of the liquid or gas pipe and operate the vacuum pump for at least 2 hours.

  • Page 50

    Installation SiEN34-705 Special vacuum drying This vacuum drying method is selected when there is a suspicion that there may be moisture in the pipes. For example: ! When moisture was discovered during the refrigerant pipe flushing operation ! When there is a risk of condensation forming inside the pipes during periods of heavy rainfall ! When there is a risk of condensation forming inside the pipes if this refrigerant pipe works takes long time ! When there is a risk that rainwater may have entered the pipes during installation...

  • Page 51

    SiEN34-705 Installation 3.2.7 Additional Charge of Refrigerant at installation time ! Operational steps Use the length of the piping to Additional charge of calculate the amount of refrigerant refrigerant required (V0995) Important points 1. The results of all calculations must be recorded. (Make a list.) 2.

  • Page 52

    Installation SiEN34-705 <*Non-azeotropic refrigerants or Quasi-azeotropic refrigerants> When a refrigerant is a mixture of two or more types with different evaporation temperature, it is called a non-azeotropic refrigerant. If all refrigerant components evaporate at the same temperature, the mixture is called an azeotropic refrigerant. If a non-azeotropic refrigerant is charged into equipment in the gaseous state, the refrigerant components that evaporate sooner than others enter the equipment, and the refrigerant that evaporate after others remain in the refrigerant cylinder.

  • Page 53

    SiEN34-705 Installation 3.2.8 Drain Pipe Work (Indoor) ! Operational steps Check for water Install indoor unit Connect drain pipe Insulate drain pipe leaks (V0999) Drain Pipe a) The drain pipe must be fitted at a gradient of at least 1/100. Gradient and The drain pipe should be as short as possible and free from airlocks.

  • Page 54

    Installation SiEN34-705 Grouped Drain 1. It is standard work practice to make connections to the main pipe from above. The pipe Piping down from the combination should be as large as possible. Grouped drain pipes from multiple units Face piping 30 or more downward Face the vent pipe mounth...

  • Page 55

    SiEN34-705 Installation Piping Diameter ! Select piping diameter from the below table in accordance with the amount of condensation for Grouped drained by all units with a common drain pipe. ! Consider 2 l/hr of drainage for every 1 HP. For example, drainage from 3 units running at 2 Drain Pipes HP and 2 units running at 3 HP is calculated as follows.

  • Page 56

    Installation SiEN34-705 (1) Carry out the drain piping ! The diameter of the drain pipe should be greater than or equal to the diameter of the connecting pipe (vinyl tube, pipe size: 25 mm; outer dimension: 32 mm). ! Keep the drain pipe short and sloping downwards at a gradient of at least 1/100 to prevent air pockets from forming.

  • Page 57

    SiEN34-705 Installation (2) After piping work is finished, check drainage flows smoothly. • Open the water inlet lid, add approximately 2.5 liter of water gradually and check drainage flow. Portable pump Water inlet Water inlet lid Refrigerant Close piping Open Bucket WHEN ELECTRIC WIRING WORK IS FINISHED ! Check drainage flow during COOL running, explained under "TEST OPERATION".

  • Page 58

    Installation SiEN34-705 Ceiling Mounted Drain Pump Kit Cassette Type Indoor unit Drain pump kit (FXFQ-M Multi- FXFQ-M Standard (Equipped with indoor unit) flow) Drain Piping Work (1) Carry out the drain piping ! Lay pipes so as to ensure that drainage can occur with no problems. ! Employ a pipe with either the same diameter or with the diameter larger (excluding the raising section) than that of the connecting pipe (PVC pipe, nominal diameter 25 mm, outside diameter 32 mm).

  • Page 59

    SiEN34-705 Installation <PRECAUTIONS FOR DRAIN RAISING PIPING> ! Install the drain raising pipes at a height of less than 550 mm. ! Install the drain raising pipes at a right angle to the indoor unit and no more than 300 mm from the unit.

  • Page 60

    Installation SiEN34-705 (2) After piping work is finished, check if drainage flows smoothly. Add approximately 2 liter of water slowly from the air outlet and check drainage flow. WHEN ELECTRIC WIRING WORK IS FINISHED Check drainage flow during COOL running, explained under ‘‘TEST OPERATION’’. WHEN ELECTRIC WIRING WORK IS NOT FINISHED Remove the terminal box lid connect a power supply and remote control to the terminals.

  • Page 61

    SiEN34-705 Installation Ceiling Mounted Drain Piping Work 〈〈 Cassette Corner Rig the drain pipe as shown below and take Type (FXKQ-MA) measures against condensation. Improperly rigged piping could lead to leaks and eventually wet 〉〉 furniture and belongings. (1) Carry out the drain piping. ! Keep piping as short as possible and slope it Metal clamp downwards so that air may not remained trapped inside...

  • Page 62

    Installation SiEN34-705 (2) After piping work is finished, check drainage flows smoothly. ! Open the inspection opening, add approximately 1liter of water slowly into the drain pan and check drainage flow. Inspection opening Portable pump Drain outlet for maintenance Bucket (with rubber plug) Note: Use the drain outlet for maintenance to drain water from the drain pan.

  • Page 63

    SiEN34-705 Installation Slim Ceiling Drain Piping Work Mounted Duct 1. Install the drain piping. Type (FXDQ) In case of PVE, NAVE (with Drain Pump) Type Drain pipe connection hole Refrigerant pipes Service drain hole (with rubber cap) In case of PVET, NVET (without Drain Pump) Type Drain pipe connection hole Refrigerant pipes Connect the drain pipe after removing the rubber cap and...

  • Page 64

    Installation SiEN34-705 Referring the figure below, insulate the metal clamp (1) and drain hose (2) using the included large sealing pad (5). (Refer to Fig. 12) Large sealing pad (5) Metal clamp (1) accessory (accessory) Metal clamp (1) (accessory) Tape Drain hose (2) (accessory) Fig.

  • Page 65

    SiEN34-705 Installation Ceiling Mounted Drain Piping Work Built-in Type <<Rig the drain pipe as shown below and take measures against condensation. Improperly rigged piping could lead to leaks and eventually wet furniture and belongings.>> (FXSQ-M) (1) Carry out the drain piping ! The diameter of the drain pipe should be greater than or equal to the diameter of the connecting pipe (vinyl tube;...

  • Page 66

    Installation SiEN34-705 (2) After piping work is finished, check drainage flows smoothly. ! Open the water inlet lid, add approximately 1 liter of water gradually and check drainage flow. Water inlet Portable pump Water inlet lid Refrigerant pipes Close Open Drain outlet for maintenance (with rubber plug) Bucket...

  • Page 67

    SiEN34-705 Installation Ceiling Mounted Drain Piping Work 〈〈Rig the drain pipe as shown below and take measures against condensation. Duct Type Improperly rigged piping could lead to leaks and eventually wet furniture and (FXMQ-MA) belongings.〉〉 〈〈Insulate the drain hose inside the building.〉〉 (1) Carry out the drain piping.

  • Page 68

    Installation SiEN34-705 (2) After piping work is finished, check drainage flows smoothly. FXMQ40-125MAVE ! Add approximately 1 liter of water slowly from the air inlet and check drainage flow. FXMQ200 · 250MAVE ! Open the water supply port, add approximately 1 liter of water slowly into the drain pan and check drainage flow.

  • Page 69

    SiEN34-705 Installation Ceiling Suspended Type Drain Piping Work Rig the drain pipe as shown below and take measures against condensation. Improperly rigged piping could (FXHQ-MA) lead to leaks and eventually wet furniture and belongings. (1) Carry out the drain piping. For drain work, rig the pipes so that they drain reliably.

  • Page 70

    Installation SiEN34-705 Notes: ! To ensure no excessive pressure is applied to the included drain hose (1), do not bend or twist when installing. (This may cause leakage.) ! If converging multiple drain pipes, install according to the procedure shown below. T-joint converging drain pipes Slope downwards at a gradient of at least 1/100 Select converging drain pipes whose gauge is suitable for the operating capacity of the unit.

  • Page 71

    SiEN34-705 Installation Wall Mounted Type (FXAQ-MA) (1) Install the drain piping. (Refer to Fig. 16) The drain pipe should be short with a downward slope and should prevent air pockets from forming. Watch out for the points in the figure 16 when performing drain work. Make sure the drain Drain hose Drain hose...

  • Page 72

    Installation SiEN34-705 Floor Standing/ Drain Piping Work Concealed Floor <<Rig the drain pipe as shown below and take measures against condensation. Improperly rigged piping could lead to leaks and eventually wet furniture and Standing Type belongings.>> (FXLQ-MA, (1) Carry out the drain piping. FXNQ-MA) Connect the drain hose (1) using the attached hose and parts, as shown in the right drawing.

  • Page 73

    SiEN34-705 Installation Ceiling Drain Piping Work Suspended 1. Rig drain piping (Refer to Fig. 26) As for drain work, perform piping in such a manner that water can be drained properly. Cassette Type As for drain piping, the connection can be made from three different directions. (FXUQ-MA) ! Employ a pipe with either the same diameter or with the diameter larger (excluding the raising section) than that of the connecting pipe (PVC pipe, nominal diameter 20 mm,...

  • Page 74

    Installation SiEN34-705 PRECAUTIONS FOR UPWARD DRAIN RAISING PIPING ! Install the drain raising pipes at a height of less than 500 mm. ! Install the drain raising pipes at a right angle to the indoor unit. (Refer to Fig. 30) WRONG Fig.30 Caution...

  • Page 75

    SiEN34-705 Installation Caution ! Electrical wiring work should be done by a certified electrician. ! If someone who does not have the proper qualifications performs the work, perform the following after the test run is complete. ! Remove the control box lid and change the emergency switch above the PC board assembly of the indoor unit from “NORM.”...

  • Page 76

    Installation SiEN34-705 Outdoor Air Drain Piping Work Processing Unit <<Rig the drain pipe as shown below and take measures against condensate. Improperly rigged piping could lead to leaks and eventually wet furniture and belongings.>> (FXMQ-MF) <<Insulate the drain pipes inside the building and the drain sockets.>> 1.

  • Page 77: Electrical Work

    SiEN34-705 Installation 3.2.10 Electrical Work Control Wiring 1. Compatible types of wire Wiring Specifications Wiring Type Shield Wire (2 wire) (See NOTE 1, 2) Size 0.75~1.25 mm² Notes: 1. Sheathed wire may be used for transmission wirings, but they do not comply with EMI (Electromagnetic lnterference) (EN55014).

  • Page 78

    Installation SiEN34-705 Power Supply 1. Choosing a circuit breaker (Cabling of Main The power supply work must conform to local regulations. In Japan, the relevant regulations are the MITI ordinance determining technical standards for electrical equipment, and the Internal Power Supply) Wining Provisions.

  • Page 79

    SiEN34-705 Installation 2. Cable size The thickness of the cables in the circuits (branch circuits) providing the main power supply to each item of apparatus must satisfy the following conditions: 1. To have a current tolerance of 40% or more of the rated current of the overcurrent circuit breaker (wiring circuit breaker, etc.).

  • Page 80

    Installation SiEN34-705 3.2.11 Duct Work (Indoor) ! Operational steps Install indoor unit Connect ducts Fit inlets and outlets (V1040) Taking Account a) Canvas joints must be used between the main unit and the air suction and discharge ducts. of Noise and These fittings are designed to inhibit secondary noise resulting from the transmission of vibrations and operating noise from the main unit to the ducts or to the rest of the building.

  • Page 81: Selection Of Location

    SiEN34-705 Installation 3.2.12 Selection of Location This unit, both indoor and outdoor, is suitable for installation in a commercial and light industrial environment. If installed as a household appliance it could cause electromagnetic interference. The VRV outdoor units should be installed in a location that meets the following requirements: 1.

  • Page 82

    Installation SiEN34-705 Service Space It is extremely important that enough space is left when installing the equipment to allow routine servicing and maintenance to be carried out without undue hindrance. It is particularly important to bear in mind the work which will be required if the compressor needs to be replaced. (The layout of the pipework can sometimes cause considerable difficulties if the compressor needs to be changed.) Take care the space for...

  • Page 83: Inspecting And Handling The Unit

    SiEN34-705 Installation 3.2.13 Inspecting and Handling the Unit • At delivery, the package should be checked and any damage should be reported immediately to the carrier claims agent. • When handling the unit, take into account the following: Fragile, handle the unit with care. Keep the unit upright in order to avoid compressor damage.

  • Page 84: Installation Of Outdoor Unit

    Installation SiEN34-705 3.2.14 Installation of Outdoor Unit ! Operational steps Install outdoor unit Prepare foundation (V1150) Foundation of Units Foundation bolt type: JA Size M12 Four bolts are required Spring washer 3 thread ridges Frame Drain ditch Foundation bolt executing method (Smooth down grade of about 1/50) Y groove Except 5Hp Modeles...

  • Page 85

    SiEN34-705 Installation Bolt Pitch Unpacking and ! Make sure the unit is installed level on a sufficiently strong base to prevent vibration and Placing the Unit noise. ! Secure the unit to its base using foundation bolts. (Use four commercially available M12- type foundation bolts, nuts, and washers.) ! The foundation bolts should be inserted 20 mm.

  • Page 86

    Installation SiEN34-705 Do not Use Stands to Support The Corners In the case of 8HP type or more, the product cannot be supported with four corners. In the case of 5HP type, the product can be supported with four corners. It is need in the case of 8HP type or more Center of the product...

  • Page 87: General Information

    SiEN34-705 Installation To Service Person WARNING Caution to electric shock ● Beware the fan running when inspect. ● Do not touch the charged parts when inspect Check the system status on LED(H2P) on the Pc board (A1P) from inspection door on the EL, COMPO, BOX cover LED display shows: TURNING OFF***Normal TURNING ON***Abnormal FLASHING***Under preparation...

  • Page 88: Test Operation, Procedure And Outline

    Test Operation SiEN34-705 4. Test Operation Procedure and Outline Follow the following procedure to conduct the initial test operation after installation. 4.1.1 Check Work Prior to Turn Power Supply On Is the wiring performed as specified? Check the below items. Is the designated wire used? 2Power wiring Is the wiring screw of wiring not loose?

  • Page 89: Turn Power On

    SiEN34-705 Test Operation 4.1.2 Turn Power On Be sure to turn the power on 6 hours before starting operation to protect Turn outdoor unit and indoor compressors. (to power on clankcase heater) unit power on. Check to be sure the transmission is normal. Check the LED display of the The transmission is normal if the LEDs display conditions as shown in outdoor unit PC board.

  • Page 90: Check Operation

    Test Operation SiEN34-705 4.1.3 Check Operation [Check Operation Procedure] STEP1 Make the onsite setting as needed using the dip switches on the outdoor unit PC-board (A1P) with the power off (See below instruction Note1) STEP2 Close the EL. COMPO. BOX lid and all front panels except as the side of the EL. COMPO.

  • Page 91

    SiEN34-705 Test Operation [remote control displays malfunction code] Malfunction Installation error Remedial action code E3, E4 The shutoff valve of the outdoor F3, F6 Open the shutoff valve. unit is left closed. The phases of the power to the Exchange two of the three phases (L1, L2, L3) to outdoor unit is reversed.

  • Page 92: Operation When Power Is Turned On

    Test Operation SiEN34-705 Operation when Power is Turned On 4.2.1 When Turning On Power First Time The unit cannot be run for up to 12 minutes to automatically set the master power and address (indoor-outdoor address, etc.). Status Outdoor unit Test lamp H2P ..

  • Page 93: Outdoor Unit Pc Board Layout

    SiEN34-705 Test Operation Outdoor Unit PC Board Layout Outdoor unit PC board (2) Set mode display (LED) (3) Mode setting switch H1P H2P H3P H4P H5P H6P H7P H8P 1 2 3 4 1 2 3 4 MODE RETURN TEST RESET (1) Microcomputer normal monitor (4) Local setting switch...

  • Page 94: Field Setting

    Test Operation SiEN34-705 Field Setting 4.4.1 Field Setting from Remote Control Individual function of indoor unit can be changed from the remote control. At the time of installation or after service inspection / repair, make the local setting in accordance with the following description.

  • Page 95

    SiEN34-705 Test Operation 4.4.1.2 Infrared Remote Control - Indoor Unit BRC7C type BRC7E type BRC4C type Mode No. Field set mode Second code no. First code no. 1. When in the normal mode, push the “ ” button for 4 seconds or more, and operation then enters the “field set mode.”...

  • Page 96

    Test Operation SiEN34-705 4.4.1.3 Simplified Remote Control BRC2A51 BRC2C51 Mode No. First code no. Unit No. Second code no. 1. Remove the upper part of remote control. 2. When in the normal mode, press the [BS6] BUTTON (2) (field set), and the FIELD SET MODE is entered.

  • Page 97

    SiEN34-705 Test Operation 4.4.1.4 Setting Contents and Code No. – VRV Indoor unit Mode Setting Setting Contents Second Code No.(Note 3) Switch system indoor Note 2 unit 10(20) Filter contamination heavy/ Super Light Approx. Heavy Approx. — — settings light (Setting for display long life 10,000 5,000...

  • Page 98

    Test Operation SiEN34-705 4.4.1.5 Applicable range of Field setting Ceiling mounted cassette Slim Ceiling Ceiling Ceiling Wall Floor Concealed Outdoor type Ceiling mounted mounted suspended mounted standing Floor Ceiling mounted built-in duct type type type standing suspended processing Multi Double Corner duct type...

  • Page 99

    SiEN34-705 Test Operation 4.4.1.6 Detailed Explanation of Setting Modes Filter Sign Setting If switching the filter sign ON time, set as given in the table below. Set Time Filter Specs. Standard Long Life Ultra Long Life Filter Setting Contamination Light 200 hrs.

  • Page 100

    Test Operation SiEN34-705 Auto Restart after Power Failure Reset For the air conditioners with no setting for the function (same as factory setting), the units will be left in the stop condition when the power supply is reset automatically after power failure reset or the main power supply is turned on again after once turned off.

  • Page 101

    SiEN34-705 Test Operation Air Flow Direction Setting Set the air flow direction of indoor units as given in the table below. (Set when optional air outlet blocking pad has been installed.) The second code No. is factory set to “01.” Setting Table Second Code Mode No.

  • Page 102

    Test Operation SiEN34-705 4.4.1.7 Outdoor Air Processing Unit-Field Setting (Remote Control) Setting Setting position No. Mode Setting contents Stain of filter 2500hr 1250hr — — — — — — — — — — — — — Filtering (20) time Display —...

  • Page 103

    SiEN34-705 Test Operation 4.4.1.8 Centralized Control Group No. Setting BRC1A Type In order to conduct the central remote control using the central remote control and the unified ON/OFF controller, Group No. settings should be made by group using the operating remote control.

  • Page 104

    Test Operation SiEN34-705 BRC7C Type ! Group No. setting by infrared remote control for centralized control BRC7E Type 1. When in the normal mode, push “ ” button for 4 seconds or more, and operation then enters the “field set mode.” BRC4C Type 2.

  • Page 105

    SiEN34-705 Test Operation 4.4.1.9 Setting of Operation Control Mode from Remote Control (Local Setting) The operation control mode is compatible with a variety of controls and operations by limiting the functions of the operation remote control. Furthermore, operations such as remote control ON/OFF can be limited in accordance with the combination conditions.

  • Page 106

    Test Operation SiEN34-705 How to Select Whether operation by remote control will be possible or not for turning on/off, controlling Operation Mode temperature or setting operation mode is selected and decided by the operation mode given on the right edge of the table below. Example ON by remote OFF by remote...

  • Page 107: Field Setting From Outdoor Unit

    SiEN34-705 Test Operation 4.4.2 Field Setting from Outdoor Unit 4.4.2.1 Field Setting from Outdoor Unit ! List of Field Setting Items This following section indicates the list of field setting items. For the lists of dip switch contents, Setting mode 1, and Setting mode 2, refer to information in tables shown on the following page onward.

  • Page 108

    Test Operation SiEN34-705 Setting item Content and objective of setting Overview of setting procedure Indoor unit fan ! Used to operate the indoor unit in the ! Set No. 5 of "Setting mode 2" to indoor unit forced H operation stopped state in forced H operation mode.

  • Page 109

    SiEN34-705 Test Operation ! Setting by pushbutton switches The following settings are made by pushbutton switches on PC board. In case of multi-outdoor unit system, various items should be set with the master unit. (Setting with the slave unit is disabled.) The master unit and slave unit can be discriminated with the LED display as shown below.

  • Page 110

    Test Operation SiEN34-705 a. “Setting mode 1” This mode is used to set and check the following items. 1. Set items ············ In order to make COOL/HEAT selection in a batch of outdoor unit group, change the setting. • COOL/HEAT selection (IND) ·····················Used to select COOL or HEAT by individual outdoor unit (factory set).

  • Page 111

    SiEN34-705 Test Operation b. “Setting mode 2” Setting item Description Push and hold the MODE (BS1) Used to make setting of contents to display on the digital button for 5 seconds and set to Digital pressure pressure gauges (e.g. pressure sensors and temperature “Setting mode 2”.

  • Page 112

    Test Operation SiEN34-705 Setting item Description Changes target value of power consumption when 30 Demand setting 1 demand control 1 is input. Normally enables demand control 1 without external 32 Normal demand input. (Effective to prevent a problem that circuit breaker setting of small capacity is shut down due to large load.) Setting of difference...

  • Page 113

    SiEN34-705 Test Operation Setting item display C/H selection Setting condition display MODE TEST Demand Setting item noise Master Slave ∗ Factory set Address 8777777 Binary number 8777778 Digital pressure gauge kit display (4 digits) 8778888 8777777 ∗ Address Binary number 8777778 Cool / Heat Unified address...

  • Page 114

    Test Operation SiEN34-705 Setting item display C/H selection Setting condition display MODE TEST Demand Setting item noise Master Slave ∗ Factory set 8777777 ∗ Level 1 (outdoor fan with 6 step or 8777778 Night-time low noise setting Level 2 (outdoor fan with 5 step or 8777787 Level 3 (outdoor fan with 4 step or 8777788...

  • Page 115

    SiEN34-705 Test Operation c. Monitor mode LED display Setting item Data display To enter the monitor mode, push the Various settings 9 7 7 7 7 7 7 Lower 4 digits MODE (BS1) button when in “Setting mode 1”. C/H unified address 9 7 7 7 7 7 8 Low noise/demand address 9 7 7 7 7 8 7...

  • Page 116

    Test Operation SiEN34-705 Push the SET button and match with the LEDs No. 1 - 15, push the RETURN button, and confirm the data for each setting. H Data such as addresses and number of units is expressed as binary numbers; the two ways of expressing are as follows: The No.

  • Page 117

    SiEN34-705 Test Operation 4.4.2.2 Cool / Heat Mode Switching (∗Heat Pump model only) There are the following 4 cool/heat switching modes. % Set cool/heat separately for each outdoor unit system by indoor unit remote control. & Set cool/heat separately for each outdoor unit system by cool/heat switching remote control. ' Set cool/heat for more than one outdoor unit system simultaneously in accordance with unified master outdoor unit by indoor unit remote control.

  • Page 118: Remote Control

    Test Operation SiEN34-705 & Set Cool / Heat Separately for Each Outdoor Unit System by Cool / Heat Switching remote control $ It does not matter whether or not there is outdoor - outdoor unit wiring. $ Set outdoor unit PC board DS1-1 to OUT (factory set). $ Set cool/heat switching to IND (individual) for “Setting mode 1”...

  • Page 119

    SiEN34-705 Test Operation ' Set Cool / Heat for More Than One Outdoor Unit System Simultaneously in Accordance with Unified Master Outdoor Unit by Indoor Unit Remote Control $ Install the external control adapter for outdoor unit on either the outdoor-outdoor, indoor- outdoor transmission line.

  • Page 120

    Test Operation SiEN34-705 ( Set Cool / Heat for More Than One Outdoor Unit System Simultaneously in Accordance with Unified Master Outdoor Unit by Cool / Heat Switching Remote Control $ Install the external control adapter for outdoor unit on either the outdoor-outdoor, indoor- outdoor transmission line.

  • Page 121

    SiEN34-705 Test Operation Supplementation on ' and (. When switching cool/heat for each adapter PC board with the use of more than one adapter PC board, set the address of the external control adapter for outdoor unit PC board DS1 and DS2 so that it matches the unified cool/heat address of outdoor unit main PC board.

  • Page 122

    Test Operation SiEN34-705 4.4.2.3 Setting of Low Noise Operation and Demand Operation Setting of Low Noise Operation By connecting the external contact input to the low noise input of the outdoor unit external control adapter (optional), you can lower operating noise by 2-3 dB. Setting Content Mode 1...

  • Page 123

    SiEN34-705 Test Operation Image of operation in the case of A If capacity precedence is set in Operation sound “Capacity precedence setting”, the fan speed will be increased according to the load of air conditioning when load is heavier. Rated operation sound Operation sound during low Low noise mode instructing...

  • Page 124

    Test Operation SiEN34-705 Setting of By connecting the external contact input to the demand input of the outdoor unit external control Demand adapter (optional), the power consumption of unit operation can be saved suppressing the compressor operating condition. Operation Set item Condition Content Demand 1...

  • Page 125

    SiEN34-705 Test Operation Image of operation in the case of A Power consumption The power Rated power consumption consumption during 80 % of rated power consumption Demand level 1 instructing Demand level 2 instructing Demand level 3 instructing the demand level 1 70 % of rated power consumption instructing can be 60 % of rated power consumption...

  • Page 126

    Test Operation SiEN34-705 Detailed Setting 1. Setting mode 1 (H1P off) % In setting mode 2, push the BS1 (MODE button) one time. → Setting mode 1 is entered and Procedure of Low H1P off. Noise Operation During the setting mode 1 is displayed, “In low noise operation” and “In demand control” are and Demand displayed.

  • Page 127

    SiEN34-705 Test Operation : ON : OFF : Blink " & Setting Setting Setting No. indication Setting No. indication Setting Setting contents indication (Initial setting) contents contents H1P H2P H3P H4P H5P H6P H7P H1P H2P H3P H4P H5P H6P H7P H1P H2P H3P H4P H5P H6P H7P External "...

  • Page 128

    Test Operation SiEN34-705 4.4.2.4 Setting of Refrigerant Recovery Mode When carrying out the refrigerant collection on site, fully open the respective expansion valve of indoor and outdoor units. All indoor and outdoor unit’s operation are prohibited. [Operation procedure] % In setting mode 2 with units in stop mode, set “Refrigerant Recovery / Vacuuming mode” to ON.

  • Page 129

    SiEN34-705 Test Operation 4.4.2.6 Check Operation Detail. CHECK OPERATION FUNCTION (Press the MODE button BS1 once and set to SETTING MODE 1 (H1P: OFF)) LED display (H1P~H7P) ( BLINK) Unit stopping 3383333 Press the TEST button for 5 seconds. Step 1 3933338 Pressure equalizing 10 sec to 10 minutes...

  • Page 130: Caution For Refrigerant Leaks

    Caution for Refrigerant Leaks SiEN34-705 5. Caution for Refrigerant Leaks Caution for Refrigerant Leaks 5.1.1 Introduction Points to note in connection with refrigerant leaks The installer and system specialist shall secure safety against leakage according to local regulations or standards. The following standards may be applicable if local regulations are not available.

  • Page 131

    SiEN34-705 Caution for Refrigerant Leaks Step 2: Calculate the smallest room volume (m³) In a case like the following calculate the volume of (a), (b) as a single room or as the smallest room. A.Where there are no smaller room divisions. Outdoor unit Indoor unit B.Where there is a room division but there is an opening between the rooms sufficiently large to...

  • Page 132

    Caution for Refrigerant Leaks SiEN34-705 Step 4: Dealing with situations where the result exceeds the dangerous concentration level. Where the installation of a facility results in a concentration in excess of the dangerous concentration level then it may be necessary to revise the system design to dome extent or else take one of the following courses of action.

  • Page 133: Hand Over To Customer

    SiEN34-705 Hand Over to Customer 6. Hand Over to Customer Operational Steps Explain how to Hand over relevant Make final report operate printed materials Complete test run (test run equipment inspection sheet) (V1050) Important Points a) The measurements taken during the test run should be recorded and kept on a test run inspection sheet.

  • Page 134: Appendix, Operating Noise Of Indoor Units

    Appendix SiEN34-705 7. Appendix Operating Noise of Indoor Units 7.1.1 Difference between Catalogue Data and Actual Noise Operating noise differs depending on the place of measurement (room) because of the various degrees with which the room reverberates the sound. To determine the amount of reverberation under uniform conditions, the unit has been measured in a dead room with results having been compiled in the below table.

  • Page 135

    SiEN34-705 Appendix 7.1.2 Faint Noises and Correcting Operating Noise with Respect to Faint Noises Faint noises are defined as peripheral sounds existing while the unit is not running, which are picked up when measuring operating noise. If these faint noises are 10 dB or more than the noise produced by the unit, the measured value can be taken as the operating noise of the unit.

  • Page 136: Piping Installation Point

    Appendix SiEN34-705 Piping Installation Point 5m or less than 5m Maximum length from a connection Connection Connection kit. 10m or less from first branch. Kit A Kit B (Equivalent Piping Length 13m) Since there is a possibility that oil may be collected on a stop machine side, install piping between outdoor units to go to level or go up to an outdoor unit, and to make a slope.

  • Page 137

    SiEN34-705 Appendix <The Example of A Wrong Pattern> Wrong × Oil is collected to the outdoor unit at the time of a stop, because of bottom omission of piping. (V3039) Wrong × Oil is collected to the low level outdoor unit at the time of a stop, because of downward slope of piping.

  • Page 138: Example Of Connection (r-410a Type), Example Of Connection (r-410a Type)

    Appendix SiEN34-705 Example of Connection (R-410A type) Example of connection (Connection of 8 indoor units) (∗1) “ ” indicate the Outdoor unit multi connection piping kit (∗2) In case of multi outdoor system, re-read to the first Outdoor unit multi connection piping kit as seen from the indoor unit.

  • Page 139

    SiEN34-705 Appendix 7.3.1 Branch with Refnet Joint Heat Pump 50Hz/60Hz, Cooling Only 50Hz (RX(Y)Q5~54P, 50PH) (Connection of 8 indoor units Heat pump system) Example refrigerant branch using REFNET joint REFNET joint (C) Outdoor unit Single outdoor system (RX(Y)Q5 ~ 18P) Indoor units (1-8) Outdoor unit REFNET joint (A-G)

  • Page 140

    Appendix SiEN34-705 7.3.2 Branch with Refnet Joint and Refnet Header Heat Pump 50Hz/60Hz, Cooling Only 50Hz (RX(Y)Q5~54P, 50PH) (Connection of 8 indoor units Heat pump system) Example refrigerant branch using REFNET joint and REFNET header Outdoor unit REFNET joint (C) Single outdoor system (RX(Y)Q5 ~ 18P)

  • Page 141

    SiEN34-705 Appendix 7.3.3 Branch with Refnet Header Heat Pump 50Hz/60Hz, Cooling Only 50Hz (RX(Y)Q5~54P, 50PH) (Connection of 8 indoor units Heat pump system) Example refrigerant branch using REFNET header REFNET header Outdoor unit Single outdoor system (RX(Y)Q5 ~ 18P) Indoor units (1 - 8) Outdoor unit REFNET header Multi outdoor...

  • Page 142: Refrigerant Branch Kit Selection

    Appendix SiEN34-705 Refrigerant Branch Kit Selection Refrigerant branch kits can only be used with R-410A. 7.4.1 How to Select the Refnet Joint Heat Pump 50Hz/60Hz, Cooling Only 50Hz (RX(Y)Q5~54P, 50PH) ! When using REFNET joint at the first branch counted from the outdoor unit side. Choose from the following table in accordance with the outdoor unit capacity type.

  • Page 143

    SiEN34-705 Appendix 7.4.2 How to Select the Refnet Header (Heat Pump/Cooling Only RX(Y)Q5~54P, 50PH) ! Choose from the following table in accordance with the total capacity of all the indoor units connected below the REFENT header. ! Note: 250 type cannot be connected below the REFENT header. Indoor unit total capacity index Refrigerant branch kit name <...

  • Page 144

    Appendix SiEN34-705 7.4.3 How to Select the Outdoor Unit Multi Connection Piping Kit (This is Required when the System is Multi Outdoor Unit System.) Heat Pump 50Hz/60Hz, Cooling Only 50Hz ! Choose from the following table in accordance with the number of outdoor units. Number of outdoor units Connection piping kit name 2 units...

  • Page 145: Pipe Size Selection

    SiEN34-705 Appendix Pipe Size Selection 7.5.1 Heat Pump 50Hz/60Hz, Cooling Only 50Hz (RX(Y)Q5~54P, 50PH) Pipe size selection Caution The thickness of the pipes in the table shows the requirements of Japanese High Pressure Gas Control low. (As of Jan. 2003) The thickness and material shall be selected in accordance with local code.

  • Page 146

    Appendix SiEN34-705 Piping between refrigerant branch kits ! Choose from the following table in accordance with the total capacity index of all the indoor units connected below this. ! Do not let the connection piping exceed the main refrigerant piping size. (Unit:mm) Piping size (O.D.) Indoor unit total capacity index...

  • Page 147: How To Calculate The Additional Refrigerant To Be Charged

    SiEN34-705 Appendix How to Calculate the Additional Refrigerant to be Charged 7.6.1 Heat Pump 50Hz/60Hz, Cooling Only 50Hz (RX(Y)Q5~54P, 50PH) Additional refrigerant to be charged R (Kg) R should be rounded off in units of 0.1Kg. Note: If a negative result is gotten for R from the formula below, no refrigerant needs to be added. Total length (m) Total length (m) Total length (m)

  • Page 148: Size Of Main Gas And Liquid Pipes And Allowable Length

    Appendix SiEN34-705 Size of Main Gas and Liquid Pipes and Allowable Length 7.7.1 Heat Pump 50Hz/60Hz, Cooling Only 50Hz (RX(Y)Q5~54P, 50PH) ∗Note 1 When the equivalent pipe length between outdoor and indoor units is 90m or more, the size of main pipes (both gas-side and liquid-side) must be increased.

  • Page 149

    SiEN34-705 Appendix ∗Note 2 Allowable length after the first refrigerant branch kit to indoor units is 40 m or less, however it can be extended up to 90 m if all the following conditions are satisfied. (In case of “ Branch with REFNET joint ”) Required Conditions Example Drawings 8 b + c + d + e + f + g + p ≤...

  • Page 150: Record Of Field Setting And Additional Refrigerant Charge

    Appendix SiEN34-705 Record of Field Setting and Additional Refrigerant Charge Fill the following record and put it on the back side of electrical board. Request for indication of setting contents, additional refrigerant charging amount and installation date After filling out the below, please put it on the back side of an ex-board. 1.

  • Page 151: Outdoor Unit Multi Connection Piping Kit

    SiEN34-705 Appendix Outdoor Unit Multi Connection Piping Kit 7.9.1 BHFP22P100 · 151 Component parts <Do not throw away any of the accessories until installation is complete> This kit contains the following parts. Shape insulating insulating name Liquid-side joint Gas-side reducer Gas-side joint Liquid-side reducer tube for...

  • Page 152

    Appendix SiEN34-705 When istalling this kit, please apply the To the piping installer following restrictions Restrictions on Installing Multi Connection Piping Kit • Install the joint horizontally so that the caution label attached to joint comes to the top. Do not tilt the joint more than ±15°. (See Fig. 1). In addition, do not install the joint vertically. (See Fig. 2) •...

  • Page 153

    SiEN34-705 Appendix BHFP22P100 Installation Instructions There are some restrictions on the interconnecting piping between the outdoor units. See the installation attached to the outdoor units Caution and make sure to carry out proper piping. If the piping restrictions are not observed, it may result in malfunction of the unit. Connecting pipe sizes and location of cutting the joint Select cutting point of a joint or a reducer which is suitable for the size of the interconnecting pipes determined according to the table below and cut it with a pipe cutter.

  • Page 154

    Appendix SiEN34-705 Connection of gas and liquid pipes 2-1 Cutting the field supply gas pipes • Cut the pipes according to Table 1. • This table shows the case when the A dimensions shown in 1-2 Finished dimensions is 290 mm. Caution If the A dimensions exceed 290 mm, see Table 1 and adjust the dimensions of the gas pipe 1 and 2.

  • Page 155

    SiEN34-705 Appendix The work after the kit is connected Follow the instructions in the installation manual included Connection of piping between the outdoor unit and the indoor unit with the outdoor unit, when performing installation work. Air tight test Insulation of joints (1) Fit the insulation to the reducer and temporarily keep it in place with tape.

  • Page 156

    Appendix SiEN34-705 Installation examples Prodecure for Lower Front Connection 1-1 Exterior view Outdoor unit A Gas pipe 1 (field supply) Outdoor unit B Elbow (field supply) Gas pipe 3 (field supply) Gas-side joint Liquid-side joint Gas pipe 2 To indoor unit (field supply) Gas pipe 4 Liquid pipe...

  • Page 157

    SiEN34-705 Appendix Connection of gas and liquid pipes 2-1 Cutting the field supply gas pipe 1 to 4 • Cut the pipes according to Table 3 • The L dimension of the gas pipe 1 to 4 in Table 3 show those CAUTION when the field supply elbows have B dimension in Table 2 shown in Procedure for Front Connection, 2 Connection of...

  • Page 158

    Appendix SiEN34-705 Installation examples Procedure for Bottom Connection This installation is only possible if there is enough space to perform brazing and racking underneath the outdoor unit. If a centralized drain pan kit and/or CAUTION vibration proof base are used, the dimensions marked with in the figure below will vary, so see the table below and determine the length of the field pipes 1-1 Exterior view Seperately-sold item also used...

  • Page 159

    SiEN34-705 Appendix 2-2 Connection of pipes • Remove the knockout plate on the bottom frame. (See the installation manual attached to the outdoor unit) • Connect the gas and liquid pipe as shown in the figure below. (When connecting the pipes, first connect the gas-side joint and the gas-side reducer (1), the liquid-side joint and the liquid-side reducer (1)).

  • Page 160

    Appendix SiEN34-705 BHFP22P151 Installation Instructions There are some restrictions on the interconnecting piping between the outdoor units. See the installation manual attached to the outdoor CAUTION units and make sure to carry out proper piping. If the piping restrictions are not observed, it may result in malfunction of the unit. Connecting Pipe Sizes and location of cutting the joint Select cutting point of a joint or a reducer which is suitable for the size of the interconnecting pipes determined according to the table below and cut it with a pipe cutter.

  • Page 161

    SiEN34-705 Appendix Connection of gas and liquid pipes 2-1 Cutting the field supply gas pipes • Cut the pipes according to Table 6. • This table shows the case when the A dimensions shown in “1-2 Finished dimensions” is 284mm. CAUTION If the A dimensions exceed 284mm, see Table 6 and adjust the dimensions of the gas pipe 1 and 2 and 3.

  • Page 162

    Appendix SiEN34-705 Installation examples Procedure for Front Connection 1-1 Exterior view 1-2 Finished dimensions • A standard installation has the following dimensions. • When the dimensions exceed the standard installation, extend the pipes Outdoor unit A between the outdoor unit and the joint. (field supply) Gas-pipe Liquid-pipe Gas-pipe 1 (field supply)

  • Page 163

    SiEN34-705 Appendix The work after the kit is connected Connection of piping between the outdoor unit and the indoor unit Follow the instructions in the installation manual included with the outdoor unit, when performing installation work. Air tight test Insulation of joints •...

  • Page 164

    Appendix SiEN34-705 Installation examples Procedure for Bottom Connection This installation is only possible if there is enough space to perform brazing and racking underneath the outdoor unit. CAUTION If a centralized drain pan kit and/or vibration proof base are used, the dimensions marked with “ ” in the figure below will vary, so see the table below and determine the length of the field pipes.

  • Page 165

    SiEN34-705 Appendix Connection of gas and liquid pipes 2-1 Cutting the field supply gas pipe 1 and 2 and the Gas-side accessory pipe (3) attached to the outdoor unit • Cut the pipes according to Table 8 or 9. • The “L” dimension of the gas pipe 1 in Table 8 and the gas pipe 2 in Table 9 are identical to the “B” dimensions in table 2, those of “field supply elbows” CAUTION shown in the procedure of front connection, which are equivalent to “straight size joint”...

  • Page 166: Refnet Joint And Header

    Appendix SiEN34-705 7.10 REFNET Joint and Header 7.10.1 REFNET Joint (Branch Kit) KHRP26A22T Liquid Side Gas Side Insulation Insulation C : D3K05234A KHRP26A33T Liquid Side Gas Side Insulation Insulation C : D3K05235B KHRP26A72T Liquid Side Gas Side Insulation Insulation C : D3K05236A KHRP26A73T Liquid Side Gas Side...

  • Page 167

    SiEN34-705 Appendix 7.10.2 REFNET Header (Branch Kit) KHRP26M22H Gas Side Liquid Side Insulation Insulation D3K03629C KHRP26M33H Gas Side Liquid Side Insulation Insulation D3K03630C KHRP26M72H Gas Side Liquid Side Insulation Insulation D3K03631C KHRP26M73H Gas Side Liquid Side Insulation Insulation D3K03632C General Information...

  • Page 168: Installation Procedure

    Appendix SiEN34-705 7.10.3 Reducer 7.10.4.1 Pipe size reducer (For R-410A) KHRP26M73TP • 73HP KHRP25M72TP • 73TP • 72HP ! This includes the following parts. pipe size reducer pipe size reducer pipe size reducer pipe size reducer pipe size reducer SHAPE ⎯...

  • Page 169: Refnet Joints, Refnet Header

    SiEN34-705 Appendix 7.10.4 REFNET Joints and Headers 7.10.4.1 REFNET Joints For gas and liquid branch pipes To next branch or indoor unit Outlet (1) Field piping Field piping Inlet Outlet (2) Gas and liquid branch pipe To outdoor unit (option) ! Make sure that all branch pipes are fitted such that they branch either horizontally or vertically.

  • Page 170

    Appendix SiEN34-705 ! When the number of indoor units to be connected to the branch pipes is less than the number of branch pipes available for connection then cap pipes should be fitted to the surplus branches. Pinched pipe Pinched pipe (included with kit) (included with kit) ! When the size of the selected field piping is different from that of branch pipe then the...

  • Page 171: Vrv Inspection Sheet

    SiEN34-705 Appendix 7.11 VRV Inspection Sheet Inspection date: Delivery date: Transfer date: Owner System name Outdoor units Installation location Model Unit No. Outdoor unit system name Outdoor unit 1 Outdoor unit 2 Outdoor unit 3 Indoor units Installation Model Unit No. Group No.

  • Page 172

    Appendix SiEN34-705 Before turning on the power System name Decision Inspection item Inspection method Standard (guideline) Measurement values Breaker capacity Visual inspection Specified capacity Refrigerant piping system Gas detector No leaks Heat exchanger Visual inspection No clogging or damage Terminal connection section Screwdriver, etc. No looseness Fan motor electrical insulation 500-V megatester 1 MΩ...

  • Page 173

    SiEN34-705 Appendix Inspection item Inspection method Standard (guideline) Measurement values Decision Room 1 G NG Room 2 G NG Room 3 G NG Room 4 G NG Room 5 G NG Room 6 G NG Room 7 G NG Room 8 G NG Room 9 G NG Room 10 G NG Room 11 G NG...

  • Page 174

    Appendix SiEN34-705 During operation System name Decision Inspection item Inspection method Standard (guideline) Measurement values Main power supply voltage Tester Rated voltage ±10% V S-T V R-T Operation circuit voltage Tester Rated voltage ±10% Fan rotation direction Visual inspection Forward rotation Fan noise/vibration Listening No noise or vibration...

  • Page 175

    SiEN34-705 Appendix During operation System name Inspection item Inspection method Standard (guideline) Measurement values Decision Room 1 V Room 2 V Room 3 V Room 4 Room 5 V Room 6 V Room 7 V Room 8 Room 9 V Room10 V Room11 V Room12 Room13...

  • Page 176: Piping System Diagrams

    Appendix SiEN34-705 7.12 Piping System Diagrams 7.12.1 Outdoor Unit 7.12.1.1 Heat Pump/Cooling Only 50Hz RXYQ5PY1 RXQ5PY1 Filter Pressure regulating valve (check valve type) Electronic expansion valve Solenoid valve Capillary tube Accumulator Four way valve High pressure sensor Check valve Filter...

  • Page 177

    SiEN34-705 Appendix RXYQ8PY1 RXQ8PY1 Check valve Electronic expansion valve Electronic Filter expansion valve Pressure regulating valve (Check valve type) Accumulator Filter High pressure SENPH sensor Solenoid valve Check valve Filter High pressure switch Capillary tube Filter Capillary tube COMPRESSOR Filter Filter Solenoid Low pressure...

  • Page 178

    Appendix SiEN34-705 RXYQ10PY1, RXYQ12PY1 RXQ10PY1, RXQ12PY1 Check valve Electronic expansion valve Filter Pressure regulatinn valve Electronic expansion valve Accumulator Filter Four way valve High pressure sensor SENPH Solenoid valve Check valve Check valve Filter Filter High pressure High pressure switch sensor Capillary tube Filter...

  • Page 179

    SiEN34-705 Appendix RXYQ14PY1, RXYQ16PY1, RXYQ18PY1 RXQ14PY1, RXQ16PY1, RXQ18PY1 Check valve Electronic expansion valve Filter Electronic Pressure Accumulator expansion regulating valve valve Filter Four way valve High pressure sensor SENPH Solenoid Check Check valve Check valve valve valve Filter Filter Filter High pressure High pressure High pressure...

  • Page 180

    Appendix SiEN34-705 7.12.1.2 Heat Pump 60Hz RXYQ5PYL Filter Pressure regulating valve (check valve type) Electronic expansion valve Solenoid valve Capillary tube Accumulator Heat exchanger Filter Four way valve High pressure sensor Check valve Filter Filter Capillary tube Solenoid High pressure valve switch Filter...

  • Page 181

    SiEN34-705 Appendix RXYQ8PYL Check valve Electronic expansion valve Electronic Filter expansion valve Pressure regulating valve (check valve type) Accumulator Filter Heat exchanger Four way valve High pressure SENPH sensor Solenoid valve Check valve Filter High pressure switch Capillary tube Filter Capillary tube COMPRESSOR Filter...

  • Page 182: Rxyq10pyl, Rxyq12pyl

    Appendix SiEN34-705 RXYQ10PYL, RXYQ12PYL Check valve Electronic expansion valve Filter Pressure regulating valve Electronic expansion valve Accumulator Filter Heat exchanger Four way valve SENPH High pressure sensor Solenoid valve Check valve Check valve Filter Filter High pressure High pressure switch sensor Filter Capillary tube...

  • Page 183: Rxyq14pyl, Rxyq16pyl, Rxyq18pyl

    SiEN34-705 Appendix RXYQ14PYL, RXYQ16PYL, RXYQ18PYL Check valve Electronic expansion valve Filter Electronic Pressure expansion regulating Accumulator valve valve Filter Four way valve High pressure sensor Solenoid Check valve Check valve Check valve valve Filter Filter Filter High pressure High pressure High pressure switch switch...

  • Page 184: Indoor Unit

    Appendix SiEN34-705 7.12.2 Indoor Unit FXCQ, FXFQ, FXKQ, FXSQ, FXMQ, FXHQ, FXAQ, FXLQ, FXNQ Gas piping connection port Heat exchanger Flare connection : φ15.9 or less Attached piping : Above φ19.1 Liquid piping connection port (Flare connection) Filter Electronic Filter expansion valve 4D040157 Name...

  • Page 185

    SiEN34-705 Appendix FXZQ Gas pipe connection port Heat exchanger (flare connection) Liquid pipe connection port Liquid pipe connection port (flare connection) (flare connection) Filter Electronic Filter expansion valve Th1: Thermistor for suction air temp. Th2: Thermistor for liquid air temp. Th3: Thermistor for gas line temp.

  • Page 186

    Appendix SiEN34-705 FXDQ Gas side Liquid side Electronic expansion valve Filter Filter Indoor heat exchanger 4D043864J ! Refrigerant pipe connection port diameters (mm) Model Liquid FXDQ20N(A), P / 25N(A), P / 32N(A), P / φ12.7 φ6.4 40N(A) / 50N(A)VE(T) φ15.9 φ9.5 FXDQ63N(A)VE(T) FXMQ125MF / 200MF / 250MFV1...

  • Page 187

    SiEN34-705 Appendix FXUQ + BEVQ Indoor unit Indoor heat exchanger Filter Field piping ø 9.5C1220T-0 To outdoor unit Field piping ø 15.9C1220T-0 Indoor unit 4D037995G Connection Unit Electronic expansion valve Liquid piping Liquid piping connection port connection port Filter Filter Gas piping Gas piping connection port...

  • Page 188: Wiring Diagrams (heat Pump 50hz/60hz, Cooling Only 50hz)

    Appendix SiEN34-705 7.13 Wiring Diagrams (Heat Pump 50Hz/60Hz, Cooling Only 50Hz) 7.13.1 Heat Pump 50Hz/60Hz Outdoor Unit RXYQ5PY1, RXYQ5PYL General Information...

  • Page 189

    SiEN34-705 Appendix RXYQ8PY1, RXYQ8PYL General Information...

  • Page 190

    Appendix SiEN34-705 RXYQ10PY1, RXYQ10PYL General Information...

  • Page 191

    SiEN34-705 Appendix RXYQ12PY1, RXYQ12PYL General Information...

  • Page 192

    Appendix SiEN34-705 RXYQ14PY1, RXYQ16PY1, RXYQ18PY1 RXYQ14PYL, RXYQ16PYL, RXYQ18PYL General Information...

  • Page 193

    SiEN34-705 Appendix 7.13.2 Cooling Only Outdoor Unit RXQ5PY1 General Information...

  • Page 194

    Appendix SiEN34-705 RXQ8PY1 General Information...

  • Page 195

    SiEN34-705 Appendix RXQ10PY1 General Information...

  • Page 196

    Appendix SiEN34-705 RXQ12PY1 General Information...

  • Page 197

    SiEN34-705 Appendix RXQ14PY1, RXQ16PY1, RXQ18PY1 General Information...

  • Page 198

    Appendix SiEN34-705 7.13.3 Field Wiring Heat Pump, Cooling Only (50Hz/60Hz) RX(Y)Q5P, 8P, 10P, 12P, 14P, 16P, 18PY1 RXYQ5P, 8P, 10P, 12P, 14P, 16P, 18PYL General Information...

  • Page 199

    SiEN34-705 Appendix RX(Y)Q20P, 22P, 24P, 26P, 28P, 30P, 32P, 34P, 36PY1 RXYQ20P, 22P, 24P, 26P, 28P, 30P, 32P, 34P, 36PYL General Information...

  • Page 200

    Appendix SiEN34-705 RX(Y)Q38P, 40P, 42P, 44P, 46P, 48P, 50P, 52P, 54PY1 RXYQ238P, 40P, 42P, 44P, 46P, 48P, 50P, 52P, 54PYL General Information...

  • Page 201: Bad Examples And Good Examples In Installation

    SiEN34-705 Appendix 7.14 Bad Examples and Good Examples in Installation 7.14.1 Example 1: Signal Interference due to Use of Multiple Core Cable (All Model) Situation Although for the purposes of group control there are only 2 units per group there are transmission malfunctions between the indoor units and the remote control and the remote control’s address display is showing non-existent addresses such as 13 or 15.

  • Page 202

    Appendix SiEN34-705 7.14.2 Example 2: Mismatch between Cables Connecting Indoor and Outdoor Units and Corresponding Piping (All Model) Situation The remote control is not showing any malfunction and the system is operating but there is no flow of warm air from the indoor unit (in heating mode). Source of The connecting cables and the corresponding piping were not correctly matched.

  • Page 203

    SiEN34-705 Appendix 7.14.3 Example 3: Drain Pipe Trap Shape Defective Situation Indoor unit was fitted with a drain trap but a leak occurred during subsequent operation. Source of The trap was not properly shaped thus preventing it from functioning effectively as a trap and Problem and resulting in drain leakage.

  • Page 204

    Appendix SiEN34-705 7.14.4 Example 4: Pressure down Despite Absence of Leaks during Air Tight Test (All Model) Situation In order to carry out local air tight tests on the refrigerant piping the system was pressurized via the liquid pipe service port and after 24 hours the pressure was found to have fallen. The local refrigerant piping alone does not lose any pressure.

  • Page 205

    SiEN34-705 Appendix 7.14.5 Example 5: Excessive Noise due to Incorrect Angling of REFNET Joints Situation The noise of the refrigerant flow during defrosting is excessive. Source of The angle of the fittings was incorrect and needed to be rectified as shown in the following Problem and figure.

  • Page 206

    Appendix SiEN34-705 7.14.6 Example 6: Cracks Develop in Field Pipes due to Thermal Expansion and Contraction Situation Refrigerant piping has developed cracks in soldered points and is leaking gas. Cause Both ends of the pipe have been tightly fixed in place. ↓...

  • Page 207

    SiEN34-705 Appendix 7.14.7 Example 7: Transmission Wiring between the Cool/heat Selector and the Outdoor Unit is too Close to a High Voltage Wire. Situation Heating is indicated despite having selected cooling with the cool/heat selector. Cause and The transmission wiring between the cool/heat selector and the outdoor unit is too close to a Remedial Action high voltage wire.

  • Page 208

    Appendix SiEN34-705 7.14.9 Example 9: “88” cannot be Cleared from the Central Remote Control. Situation The display on the central remote control does not change from its initial state after turning power ON. Initial display of the central remote control Cause 1.

  • Page 209

    SiEN34-705 Appendix 7.14.10 Malfunction "F6" is Displayed during Check Operation in the Winter Season. Applicable RX(Y)(Q) P (VRV III series) Models Condition A malfunction "F6" (overcharge of refrigerant) is displayed when a "check operation" is executed as a test operation under the condition of low outdoor temperature in the winter season.

  • Page 210

    Appendix SiEN34-705 7.14.11 LED Display for Master/slave Judgment Malfunctions at the Time of Test Operation. Applicable RX(Y)(Q) P (Outdoor unit multi system of VRV III series) Models Condition LED display for master/slave judgment remained to be turned off the test operation of the multi system of two VRV III units though the unit being connected to the indoor-to-outdoor unit connection wire should be judged as a master unit normally.

  • Page 211

    SiEN34-705 Appendix 7.14.12 Cautions for Test Operation Applicable RX(Y)(Q) P (VRV III series) Models Condition Though a test operation (check operation) in combination with the VRV III series outdoor unit had completed, an malfunction "E4 (abnormal low pressure malfunction)" or an malfunction "F3 (abnormal discharge pipe temperature malfunction )"...

  • Page 212

    Appendix SiEN34-705 7.14.14 Inferior Insulation of the Compressor before Test Operation Applicable VRV in general Models Condition At the time of test operation, compressor was replaced since the insulation was found insufficient in the insulation measurement with the power not supplied. Cause Insulation at the terminal section inside the compressor dropped temporarily due to non- operational condition of liquid refrigerant accumulated inside the compressor.

  • Page 213

    SiEN34-705 Appendix 7.14.16 Cooling Operation of Specific Indoor Units is not Good. Applicable VRV in general Models Condition Cooling operation of specific indoor units only is not good though remaining indoor units work well and reach the set temperature. The pressure of the outdoor units for low-pressure use (evaporating temperature) has reached the target value.

  • Page 214

    Appendix SiEN34-705 7.14.17 Malfunction Heating Due to Overcharge of Refrigerant Applicable VRV in general Models Condition Inverter compressor only operates at low frequency. Discharge temperature of the indoor units is 25°C or less and thermistor temperature of the liquid pipe is approx. 30°C when it is monitored through the service mode of the indoor remote control.

  • Page 215

    SiEN34-705 Appendix 7.14.18 High-pressure Shutdown Occurs only when the STD Compressor Starts. Applicable VRV in general Models Condition High-pressure rises abnormally and the high-pressure shutdown results when the STD compressor starts during cooling operation. (High-pressure tends to be higher even in the operation of inverter compressor only.) Temperature of heat exchanger thermistor of outdoor unit was found being equivalent to the outdoor temperature when data was collected by using the service checker type III.

  • Page 216: Malfunction Of Transmission Examples

    Appendix SiEN34-705 7.15 Malfunction of Transmission Examples 7.15.1 [Malfunction of Transmission Examples] Display of Malfunction of Transmission due to the Elevator's Power Line Applicable VRV in general Models Condition A malfunction "UE" is issued at random. It continues to be generated maximum 30 seconds. Transmitted waveforms were checked to be distorted for a period of approx.

  • Page 217

    SiEN34-705 Appendix 7.15.3 [Malfunction of Transmission Examples] Faulty Condition to Multi-core Wire Applicable VRV in general Models Condition Cause According to the wiring company, two-core lines were to be used as transmission line. However, multi-core lines are used actually. There was also a case where two cores out of four cores were being used for power supply.

  • Page 218

    Appendix SiEN34-705 7.15.5 [Malfunction of Transmission Examples] Faulty Condition Caused by Branch Lines. Applicable VRV in general Models Condition A transmission malfunction occurred when the centralized controller was added to the existing system. Cause Ten of all indoor-to-outdoor lines were branch lines from a single bus cable. Measure Corrected IN - OUT wiring to one - after another wiring Point of...

  • Page 219: Part 2 Installation Manual

    SiEN34-705 Part 2 Installation Manual 1. Heat Pump / Cooling Only 50Hz (RX(Y)Q5~54P).......214 1.1 First of All .....................215 1.2 Introduction...................218 1.3 Selection of Location ................222 1.4 Inspecting and Handling the Unit ............224 1.5 Placing the Unit ..................225 1.6 Refrigerant Piping.................226 1.7 Field Wiring ..................237 1.8 Air Tight Test and Vacuum Drying ............245 1.9 Pipe Insulation..................247...

  • Page 220: Heat Pump / Cooling Only 50hz (rx(y)q5~54p)

    Heat Pump / Cooling Only 50Hz (RX(Y)Q5~54P) SiEN34-705 3. Heat Pump / Cooling Only 50Hz (RX(Y)Q5~54P) INSTALLATION MANUAL System air conditioner RXYQ5PY1 RXQ5PY1 RXYQ8PY1 RXQ8PY1 RXYQ10PY1 RXQ10PY1 RXYQ12PY1 RXQ12PY1 RXYQ14PY1 RXQ14PY1 RXYQ16PY1 RXQ16PY1 RXYQ18PY1 RXQ18PY1 RXYQ20PY1 RXQ20PY1 RXYQ22PY1 RXQ22PY1 RXYQ24PY1...

  • Page 221: First Of All

    Heat Pump / Cooling Only 50Hz (RX(Y)Q5~54P) First of All ! This document is an installation manual for the Daikin RX(Y)Q-P Series VRV Inverter. Before installing the unit, read this manual thoroughly, and following the instructions contained in it. After installation, do a test run to make sure the unit runs properly, and then explain how to operate and take care of the unit to the customer, using the operation manual.

  • Page 222

    Heat Pump / Cooling Only 50Hz (RX(Y)Q5~54P) SiEN34-705 ! Do not allow children to mount on the outdoor unit, or avoid placing any object on it. Falling or tumble may result in injury. ! Be sure to establish an earth. Do not earth the unit to a utility pipe, arrester or telephone earth.

  • Page 223: Disposal Requirements

    SiEN34-705 Heat Pump / Cooling Only 50Hz (RX(Y)Q5~54P) 3.1.2 Special notice of product [CLASSIFICATION] This air conditioner comes under the term “appliances not accessible to the general public”. [EMC CHARACTERISTICS] VRVIII System is a class A product. In a domestic environment this product may cause radio interference in which case the user may be required to take adequate measures.

  • Page 224: Introduction

    14.0 kW to 147 kW and rated heating capacity from 16.0 kW to 170 kW (except RXQ-P) can be achieved. ! The RX(Y)Q-P units can be combined with Daikin VRV series indoor units for air conditioning purposes. Always use appropriate indoor units compatible with R-410A. To lean which models of indoor units are compatible with R-410A, refer to the product catalogs.

  • Page 225

    SiEN34-705 Heat Pump / Cooling Only 50Hz (RX(Y)Q5~54P) <Combination unit> <Independent unit> RXYQ5PY1 RXYQ5PY1 RXYQ8PY1 RXYQ8PY1 RXYQ10PY1 RXYQ10PY1 RXYQ12PY1 RXYQ12PY1 RXYQ14PY1 RXYQ14PY1 RXYQ16PY1 RXYQ16PY1 RXYQ18PY1 RXYQ18PY1 RXYQ20PY1 RXYQ8PY1+ RXYQ12PY1 RXYQ22PY1 RXYQ10PY1+ RXYQ12PY1 RXYQ24PY1 RXYQ8PY1+ RXYQ16PY1 RXYQ26PY1 RXYQ8PY1+ RXYQ18PY1 RXYQ28PY1 RXYQ10PY1+ RXYQ18PY1...

  • Page 226

    Heat Pump / Cooling Only 50Hz (RX(Y)Q5~54P) SiEN34-705 ! If the total capacity of the connected indoor units exceeds the capacity of the outdoor unit, cooling and heating performance may drop when running the indoor units. See the capacity table in the Engineering Data Book for details. ! There are restrictions on the refrigerant pipe connecting order between outdoor unit in the case of the multi system.

  • Page 227: Main Components

    SiEN34-705 Heat Pump / Cooling Only 50Hz (RX(Y)Q5~54P) 3.2.3 Option accessory To install the outdoor units, the following optional parts are also required. To select an optimum kit, refer to “6. Refrigerant Piping”. ! Refrigerant branching kit REFNET header KHRP26M22H KHRP26M33H KHRP26M72H KHRP26M73H...

  • Page 228: Selection Of Location

    ! As regards space in front of the unit, consider the space needed for the local refrigerant piping when installing the units. ! If the work conditions in figure 3 do not apply, contact your dealer or Daikin directly. < If installed as a single unit >...

  • Page 229

    SiEN34-705 Heat Pump / Cooling Only 50Hz (RX(Y)Q5~54P) For Patterns 1 and 2 in figure 3: ! Wall height for front side no higher than 1500 mm. ! Wall height on the suction side no higher than 500 mm. ! Wall height for sides – no limit. ! If the height is exceeded the above, calculate h1 and h2 shown in the figure below, and add h1/2 to the service space of front side and h2/2 to the service space of suction side.

  • Page 230: Inspecting And Handling The Unit

    Heat Pump / Cooling Only 50Hz (RX(Y)Q5~54P) SiEN34-705 Inspecting and Handling the Unit ! At delivery, the package should be checked and any damage should be reported immediately to the carrier claims agent. ! When handling the unit, take into account the following: Fragile, handle the unit with care.

  • Page 231: Placing The Unit

    SiEN34-705 Heat Pump / Cooling Only 50Hz (RX(Y)Q5~54P) Placing the Unit ! Make sure the unit is installed level on a sufficiently strong base to prevent vibration and noise. (Refer to figure 7) ! The base should be bigger around than the width of the unit’s legs (66 mm), and should support the unit.

  • Page 232: Refrigerant Piping

    Heat Pump / Cooling Only 50Hz (RX(Y)Q5~54P) SiEN34-705 Refrigerant Piping Note: ! All field piping must be installed by a licensed refrigeration technician and must comply with relevant local and national regulations. ! After piping work is complete, do not under any circumstances open the shutoff valve until “1-7 Field Wiring”...

  • Page 233: Pipe Connection

    SiEN34-705 Heat Pump / Cooling Only 50Hz (RX(Y)Q5~54P) 3.6.3 Pipe connection ! Be sure to perform nitrogen permutation or nitrogen blow when brazing. (Refer to figure 10) Brazing without performing nitrogen permutation or nitrogen blow into the piping will create large quantities of oxidized film on the inside of the pipes, adversely affecting valves and compressors in the refrigerating system and preventing normal operation.

  • Page 234

    Heat Pump / Cooling Only 50Hz (RX(Y)Q5~54P) SiEN34-705 2. Removing Pinch Piping ! When connecting refrigerant piping to an outdoor unit, remove the pinch piping. (Refer to figure 13) ! Pinch piping should be removed using the procedure in the figure 13. Service port Shutoff valve (liquid side ·...

  • Page 235

    SiEN34-705 Heat Pump / Cooling Only 50Hz (RX(Y)Q5~54P) Processing the Gas side accessory pipe (2) Only in case of connecting at lateral side, cut the Gas side accessory pipe (2) referring the figure below. Gas side accessory pipe (2) Cutting location Gas side accessory pipe (2) Gas side piping...

  • Page 236

    Heat Pump / Cooling Only 50Hz (RX(Y)Q5~54P) SiEN34-705 <In case of multi system: RX(Y)Q20-54P> If connected to the front Remove the shutoff valve cover to connect. Refrigerant charge port Liquid side shutoff valve Gas side shutoff valve Brazing Gas side accessory pipe (1) Liquid side accessory pipe (1) When connected at lateral side (bottom) Remove the knock hole on the bottom frame and...

  • Page 237

    SiEN34-705 Heat Pump / Cooling Only 50Hz (RX(Y)Q5~54P) 4. Precautions when connecting piping between outdoor units (In case of multi system) The Outdoor unit multi connection piping kit (sold separately) is needed to connect piping between outdoor units in multi system. Only proceed with piping work after considering the limitations on installation listed here and in “5.

  • Page 238

    Heat Pump / Cooling Only 50Hz (RX(Y)Q5~54P) SiEN34-705 (2) To avoid the risk of oil detention in the stopping unit, always connect the shutoff valve and the piping between outdoor units as shown in the figure A or figure B. Front connections Side (bottom) connections Prohibited pattern...

  • Page 239

    SiEN34-705 Heat Pump / Cooling Only 50Hz (RX(Y)Q5~54P) 5. Branching the refrigerant piping Heed the restrictions below when installing the refrigerant branching kit and read the installation instruction manual with the kit. (Improper installation could lead to malfunctioning or breakdown of the outdoor unit.) <REFNET joint>...

  • Page 240: Example Of Connection

    Heat Pump / Cooling Only 50Hz (RX(Y)Q5~54P) SiEN34-705 3.6.5 E XAMPLE OF ONNECTION Example refrigerant branch using REFNET joint Exam Example of connection (Connection of 8 indoor units) Outdoor unit REFNET joint (A-G) (∗1) “ ” indicate the Outdoor unit multi Single outdoor connection piping kit system...

  • Page 241: Installation Manual

    SiEN34-705 Heat Pump / Cooling Only 50Hz (RX(Y)Q5~54P) Example refrigerant branch using REFNET joint and REFNET header Example refrigerant branch using REFNET header REFNET header Outdoor unit REFNET joint (A • B) Outdoor unit REFNET header Indoor units ( 1 - 8 ) Indoor units ( 1 - 8 ) Outdoor unit Outdoor unit...

  • Page 242

    Heat Pump / Cooling Only 50Hz (RX(Y)Q5~54P) SiEN34-705 3.6.6 E XAMPLE OF ONNECTION ∗Note 1 When the equivalent pipe length between outdoor and indoor units is 90m or more, the size of main pip Depending on the length of the piping, the capacity may drop, but even in such case it is able to increa The first refrigerant branch kit Outdoor unit Indoor unit...

  • Page 243

    SiEN34-705 Heat Pump / Cooling Only 50Hz (RX(Y)Q5~54P) in pipes (both gas-side and liquid-side) must be increased. crease the size of main pipes. Model Liquid Model Liquid φ38.1* φ22.2 φ22.2 RX(Y)Q34 Type RX(Y)Q48 Type Increased φ22.2 φ22.2 RX(Y)Q36 Type RX(Y)Q50 Type Increased Increased φ22.2...

  • Page 244: Field Wiring

    Heat Pump / Cooling Only 50Hz (RX(Y)Q5~54P) SiEN34-705 Field Wiring Caution: ! All field wiring and components must be installed by a licensed electrician and must comply with relevant local and national regulations. ! Be sure to use a dedicated power circuit. Never use a power supply shared by another appliance.

  • Page 245

    SiEN34-705 Heat Pump / Cooling Only 50Hz (RX(Y)Q5~54P) 1.7.1 Power circuit, safety device, and cable requirements ! A power circuit (see the following table) must be provided for connection of the unit. This circuit must be protected with the required safety devices, i.e. a main switch, a slow blow fuse on each phase and an earth leakage circuit breaker.

  • Page 246

    Heat Pump / Cooling Only 50Hz (RX(Y)Q5~54P) SiEN34-705 1.7.2 Wiring Connection Example for Whole System Power supply Outdoor unit Earth leakage Main switch circuit breaker Fuse Fuse Earth leakage Power circuit breaker supply Main switch COOL/HEAT selector Remote control Indoor unit figure 19 Note: ! Make sure the weak electric wiring (i.e.

  • Page 247

    SiEN34-705 Heat Pump / Cooling Only 50Hz (RX(Y)Q5~54P) 1.7.4 Transmission Wiring Connection Procedure ! Referring to figure 21, 22 connect the transmission wiring between outdoor unit and indoor unit, outdoor unit and outdoor unit of other system, outdoor unit and outdoor unit of same system (only multi system) or to COOL/HEAT selector (except RXQ-P).

  • Page 248

    Heat Pump / Cooling Only 50Hz (RX(Y)Q5~54P) SiEN34-705 ! All transmission wiring is to be procured on site. All wiring should use sheathed vinyl cord 0.75-1.25 mm or cable (duplex). (Triplex only for the COOL/HEAT selector.) ! Transmission wiring (About the symbol 1 ~ 3, see figure 21, 22) should be done within the following limitations.

  • Page 249

    SiEN34-705 Heat Pump / Cooling Only 50Hz (RX(Y)Q5~54P) ! The transmission wiring inside the EL.COMPO.BOX should be secured using the clamp (1) as shown in figure 24. Retain to the EL.COMPO.BOX with the accessory clamp (1). In the EL.COMPO.BOX (A1P) (A5P) (A5P) Retain to the EL.COMPO.BOX with...

  • Page 250

    Heat Pump / Cooling Only 50Hz (RX(Y)Q5~54P) SiEN34-705 Attach insulation sleeves Power supply Power supply (3N~50Hz 380-415V) terminal block Branch switch, Overcurrent breaker Ground wire Earth leakage circuit breaker Ground terminal Ground wire Clamp (1) (accessory) Clamp (1) (accessory) figure 26 ! The L1, L2, L3 and N phases of the power wiring should be secured separately to the hook using the included clamp (1).

  • Page 251

    SiEN34-705 Heat Pump / Cooling Only 50Hz (RX(Y)Q5~54P) 1.7.6 Procedure for Wiring Inside Units ! Referring to figure 27, secure and wire the power and transmission wiring using the included clamp (1), (2), and (3). [In case of 5~10HP type] Transmission wiring Power Retain with accessory...

  • Page 252: Air Tight Test And Vacuum Drying

    Heat Pump / Cooling Only 50Hz (RX(Y)Q5~54P) SiEN34-705 Air Tight Test and Vacuum Drying Note: ! Always use nitrogen gas for the airtightness test. ! Absolutely do not open the shutoff valve until the main power circuit insulation measurement has been completed. (measuring after the shutoff valve is opened will cause the insulation value to drop.) 1.8.1 Preparations <Needed tools>...

  • Page 253

    SiEN34-705 Heat Pump / Cooling Only 50Hz (RX(Y)Q5~54P) 1.8.2 Air tight test and vacuum drying method After finished piping work, carry out air tight test and vacuum drying. <Air tight test> Pressurize the liquid and gas pipes to 4.0MPa (40bar) (do not pressurize more than 4.0MPa (40bar)).

  • Page 254: Pipe Insulation

    Heat Pump / Cooling Only 50Hz (RX(Y)Q5~54P) SiEN34-705 Pipe Insulation ! Insulation of pipes should be done after performing “1-8 Air Tight Test and Vacuum Drying”. ! Always insulate the liquid side piping and gas side piping in the interunit piping and refrigerant branching kit.

  • Page 255: Checking Of Device And Installation Conditions

    SiEN34-705 Heat Pump / Cooling Only 50Hz (RX(Y)Q5~54P) 1.10 Checking of Device and Installation Conditions Be sure to check the followings. For those doing electrical work 1. Make sure there is no faulty transmission wiring or loosen a nut. See “1-7-4 Transmission Wiring Connection Procedure”. 2.

  • Page 256: Additional Refrigerant Charge And Check Operation

    Heat Pump / Cooling Only 50Hz (RX(Y)Q5~54P) SiEN34-705 1.11 Additional Refrigerant Charge and Check Operation The outdoor unit is charged with refrigerant when shipped from the factory, but depending on the size and length of the piping when installed, it may require additional charging. For charging the additional refrigerant, follow the procedure in this chapter.

  • Page 257

    SiEN34-705 Heat Pump / Cooling Only 50Hz (RX(Y)Q5~54P) <Tightening torque> Tightening torque N·m (Turn clockwise to close) Shutoff valve size Shaft (valve body) Cap (valve lid) Service port φ 9.5 5.4 - 6.6 13.5 - 16.5 Hexagonal wrench 4 mm φ...

  • Page 258

    Heat Pump / Cooling Only 50Hz (RX(Y)Q5~54P) SiEN34-705 [How to Check How Many Units are Connected] It is possible to find out how many indoor or outdoor unit in the system are turned on by operating the push button on the PC-board (A1P) of outdoor unit (In case of multi system master unit).

  • Page 259

    SiEN34-705 Heat Pump / Cooling Only 50Hz (RX(Y)Q5~54P) <About refrigerant charging> ! The refrigerant charge port is connected to the piping inside the unit. When the unit is shipped from the factory, the unit’s internal piping is already charged with refrigerant, so be careful when connecting the charge hose.

  • Page 260

    Heat Pump / Cooling Only 50Hz (RX(Y)Q5~54P) SiEN34-705 4. Perform the refrigerant charging operation following [Refrigerant charging operation procedure] as shown below, and charge the remaining refrigerant of the “additional charging amount”. For performing the refrigerant charging operation the push button on the PC-board (A1P) of outdoor unit (Incase of multi system master unit) are use.

  • Page 261

    SiEN34-705 Heat Pump / Cooling Only 50Hz (RX(Y)Q5~54P) Method 1: By the H8P (MULTI) LED display 4 (ON): Master unit 5 (Blinking): Sub unit 1 3 (OFF): Sub unit 2 Method 2: By the transmission wiring to indoor unit Transmission wiring is connected: Master unit Transmission wiring is not connected : Sub unit 1 or Sub unit 2 (2) If necessary, set the field setting by using the dip switch on the outdoor unit PC-board (A1P).

  • Page 262

    Heat Pump / Cooling Only 50Hz (RX(Y)Q5~54P) SiEN34-705 (3) Check the LED display on the outdoor unit PC-board (A1P) is as shown in the table below and transmission is normal. SERV. C/H SELECTOR MODE TEST/ LED display MONI L.N.O.P DEMA-ND MULTI (Default status of MASTER SLAVE shipped)

  • Page 263: Onsite Settings

    SiEN34-705 Heat Pump / Cooling Only 50Hz (RX(Y)Q5~54P) 1.12 Onsite Settings Note: In the case of a multi system, all onsite settings should be made on the master unit. Settings made on sub units are invalid. The outdoor unit to which the indoor unit transmission wire are connected is the master unit, and all other units are sub units.

  • Page 264: Test Run

    Heat Pump / Cooling Only 50Hz (RX(Y)Q5~54P) SiEN34-705 1.13 Test Run 1.13.1 Before Test Run ! Make sure the following works are completed in accordance with the installation manual. $ Piping work $ Wiring work $ Air tight test $ Vacuum drying $ Additional refrigerant charge ! Check that all work for the indoor unit are finished and there are no danger to operate.

  • Page 265

    SiEN34-705 Heat Pump / Cooling Only 50Hz (RX(Y)Q5~54P) 1.14 Caution for Refrigerant Leaks (Points to note in connection with refrigerant leaks) Introduction The installer and system specialist shall secure safety against leakage according to local regulations or standards. The following standards may be applicable if local regulations are not available.

  • Page 266

    4. Dealing with the situations where the result exceeds the maximum concentration level. Where the installation of a facility results in a concentration in excess of the maximum concentration level then it will be necessary to revise the system. Please consult your Daikin supplier.

  • Page 267: Heat Pump 60hz (rxyq5~54p)

    SiEN34-705 Heat Pump 60Hz (RXYQ5~54P) 2. Heat Pump 60Hz (RXYQ5~54P) INSTALLATION MANUAL System air conditioner RXYQ5PYL(E) RXYQ8PYL(E) RXYQ10PYL(E) RXYQ12PYL(E) RXYQ14PYL(E) RXYQ16PYL(E) RXYQ18PYL(E) RXYQ20PYL(E) RXYQ22PYL(E) RXYQ24PYL(E) RXYQ26PYL(E) RXYQ28PYL(E) RXYQ30PYL(E) RXYQ32PYL(E) RXYQ34PYL(E) RXYQ36PYL(E) RXYQ38PYL(E) RXYQ40PYL(E) RXYQ42PYL(E) RXYQ44PYL(E) RXYQ46PYL(E) RXYQ48PYL(E) RXYQ50PYL(E) RXYQ52PYL(E) RXYQ54PYL(E) 3P171361-7J EM06A035 (0611) HT FS Installation Manual...

  • Page 268

    SiEN34-705 First of All ! This document is an installation manual for the Daikin RXYQ-P Series VRV Inverter. Before installing the unit, read this manual thoroughly, and following the instructions contained in it. After installation, do a test run to make sure the unit runs properly, and then explain how to operate and take care of the unit to the customer, using the operation manual.

  • Page 269

    SiEN34-705 Heat Pump 60Hz (RXYQ5~54P) ! Be sure to establish an earth. Do not earth the unit to a utility pipe, arrester or telephone earth. Incomplete earth may cause electrical shock or fire. A high surge current from lightning or other sources may cause damage to the air conditioner.

  • Page 270

    Heat Pump 60Hz (RXYQ5~54P) SiEN34-705 2.1.2 Special Notice of Product [CLASSIFICATION] This air conditioner comes under the term “appliances not accessible to the general public”. [EMC CHARACTERISTICS] VRVIII System is a class A product. In a domestic environment this product may cause radio interference in which case the user may be required to take adequate measures.

  • Page 271

    16.0 kW to 170 kW can be achieved. ! The RXYQ-P units can be combined with Daikin VRV series indoor units for air conditioning purposes. Always use appropriate indoor units compatible with R-410A. To lean which models of indoor units are compatible with R-410A, refer to the product catalogs.

  • Page 272

    Heat Pump 60Hz (RXYQ5~54P) SiEN34-705 <Combination unit> <Independent unit> RXYQ5PYL(E) RXYQ5PYL(E) RXYQ8PYL(E) RXYQ8PYL(E) RXYQ10PYL(E) RXYQ10PYL(E) RXYQ12PYL(E) RXYQ12PYL(E) RXYQ14PYL(E) RXYQ14PYL(E) RXYQ16PYL(E) RXYQ16PYL(E) RXYQ18PYL(E) RXYQ18PYL(E) RXYQ20PYL(E) RXYQ8PYL(E)+ RXYQ12PYL(E) RXYQ22PYL(E) RXYQ10PYL(E)+ RXYQ12PYL(E) RXYQ24PYL(E) RXYQ8PYL(E)+ RXYQ16PYL(E) RXYQ26PYL(E) RXYQ8PYL(E)+ RXYQ18PYL(E) RXYQ28PYL(E) RXYQ10PYL(E)+ RXYQ18PYL(E) RXYQ30PYL(E) RXYQ12PYL(E)+ RXYQ18PYL(E) RXYQ32PYL(E) RXYQ16PYL(E)+ RXYQ16PYL(E) RXYQ34PYL(E)

  • Page 273

    SiEN34-705 Heat Pump 60Hz (RXYQ5~54P) 2.2.2 Standard Supplied Accessories The following accessories are included. The storage location of the accessories is shown in figure 1. Q5~Q18 type Gas side Name Clamp (1) Clamp (2) Clamp (3) accessory pipe (1) Quantity 9 pcs.

  • Page 274

    Heat Pump 60Hz (RXYQ5~54P) SiEN34-705 2.2.4 Technical and Electrical Specifications Refer to the Engineering Data Book for the complete list of specifications. 2.2.5 Main Components For main components and function of the main components, refer to the Engineering Data Book. 2.2.6 Installation Process Figure 2 shows the installation process.

  • Page 275

    ! As regards space in front of the unit, consider the space needed for the local refrigerant piping when installing the units. ! If the work conditions in figure 3 do not apply, contact your dealer or Daikin directly. < If installed as a single unit >...

  • Page 276

    Heat Pump 60Hz (RXYQ5~54P) SiEN34-705 For Patterns 1 and 2 in figure 3: ! Wall height for front side no higher than 1500 mm. ! Wall height on the suction side no higher than 500 mm. ! Wall height for sides – no limit. ! If the height is exceeded the above, calculate h1 and h2 shown in the figure below, and add h1/2 to the service space of front side and h2/2 to the service space of suction side.

  • Page 277

    SiEN34-705 Heat Pump 60Hz (RXYQ5~54P) Inspecting and Handling the Unit ! At delivery, the package should be checked and any damage should be reported immediately to the carrier claims agent. ! When handling the unit, take into account the following: Fragile, handle the unit with care.

  • Page 278

    Heat Pump 60Hz (RXYQ5~54P) SiEN34-705 Placing the Unit ! Make sure the unit is installed level on a sufficiently strong base to prevent vibration and noise. (Refer to figure 7) ! The base should be bigger around than the width of the unit’s legs (66 mm), and should support the unit.

  • Page 279

    SiEN34-705 Heat Pump 60Hz (RXYQ5~54P) Refrigerant Piping Note: ! All field piping must be installed by a licensed refrigeration technician and must comply with relevant local and national regulations. ! After piping work is complete, do not under any circumstances open the shutoff valve until “2-7.

  • Page 280

    Heat Pump 60Hz (RXYQ5~54P) SiEN34-705 2.6.3 Pipe Connection ! Be sure to perform nitrogen permutation or nitrogen blow when brazing. (Refer to figure 10) Brazing without performing nitrogen permutation or nitrogen blow into the piping will create large quantities of oxidized film on the inside of the pipes, adversely affecting valves and compressors in the refrigerating system and preventing normal operation.

  • Page 281

    SiEN34-705 Heat Pump 60Hz (RXYQ5~54P) 2. Removing Pinch Piping ! When connecting refrigerant piping to an outdoor unit, remove the pinch piping. (Refer to figure 13) ! Pinch piping should be removed using the procedure in the figure 13. Service port Shutoff valve (liquid side ·...

  • Page 282

    Heat Pump 60Hz (RXYQ5~54P) SiEN34-705 Processing the Gas side accessory pipe (2) Only in case of connecting at lateral side, cut the Gas side accessory pipe (2) referring the figure below. Gas side accessory pipe (2) Cutting location Gas side accessory pipe (2) Gas side piping (field supply) Base...

  • Page 283

    SiEN34-705 Heat Pump 60Hz (RXYQ5~54P) <In case of multi system: RXYQ20-54P(E)> If connected to the front Remove the shutoff valve cover to connect. Refrigerant charge port Liquid side shutoff valve Gas side shutoff valve Brazing Gas side accessory pipe (1) Liquid side accessory pipe (1) When connected at lateral side (bottom) Remove the knock hole on the bottom frame and...

  • Page 284

    Heat Pump 60Hz (RXYQ5~54P) SiEN34-705 4. Precautions when connecting piping between outdoor units (In case of multi system) The Outdoor unit multi connection piping kit (sold separately) is needed to connect piping between outdoor units in multi system. Only proceed with piping work after considering the limitations on installation listed here and in “5.

  • Page 285

    SiEN34-705 Heat Pump 60Hz (RXYQ5~54P) (2) To avoid the risk of oil detention in the stopping unit, always connect the shutoff valve and the piping between outdoor units as shown in the figure A or figure B. Front connections Side (bottom) connections Prohibited pattern Front connections to indoor unit...

  • Page 286

    Heat Pump 60Hz (RXYQ5~54P) SiEN34-705 5. Branching the refrigerant piping Heed the restrictions below when installing the refrigerant branching kit and read the installation instruction manual with the kit. (Improper installation could lead to malfunctioning or breakdown of the outdoor unit.) <REFNET joint>...

  • Page 287

    SiEN34-705 Heat Pump 60Hz (RXYQ5~54P) Installation Manual...

  • Page 288

    Heat Pump 60Hz (RXYQ5~54P) SiEN34-705 2.6.5 E XAMPLE OF ONNECTION Example refrigerant branch using REFNET joint Examp Example of connection (Connection of 8 indoor units) Outdoor unit REFNET joint (A-G) (∗1) “ ” indicate the Outdoor unit multi Single outdoor connection piping kit system (∗2) In case of multi outdoor system, re-read to the first...

  • Page 289

    SiEN34-705 Heat Pump 60Hz (RXYQ5~54P) Example refrigerant branch using REFNET joint and REFNET header Example refrigerant branch using REFNET header REFNET header Outdoor unit REFNET joint (A • B) Outdoor unit REFNET header Indoor units ( 1 - 8 ) Indoor units ( 1 - 8 ) Outdoor unit Outdoor unit...

  • Page 290

    Heat Pump 60Hz (RXYQ5~54P) SiEN34-705 2.6.6 E XAMPLE OF ONNECTION ∗Note 1 When the equivalent pipe length between outdoor and indoor units is 90m or more, the size of main p Depending on the length of the piping, the capacity may drop, but even in such case it is able to incre The first refrigerant branch kit Outdoor unit Indoor unit...

  • Page 291

    SiEN34-705 Heat Pump 60Hz (RXYQ5~54P) f main pipes (both gas-side and liquid-side) must be increased. to increase the size of main pipes. Model Liquid Model Liquid φ38.1* φ22.2 φ22.2 RX(Y)Q34 Type RX(Y)Q48 Type Increased φ22.2 φ22.2 RX(Y)Q36 Type RX(Y)Q50 Type Increased Increased φ22.2...

  • Page 292

    Heat Pump 60Hz (RXYQ5~54P) SiEN34-705 Installation Manual...

  • Page 293

    Heat Pump 60Hz (RXYQ5~54P) SiEN34-705 Field Wiring Caution: ! All field wiring and components must be installed by a licensed electrician and must comply with relevant local and national regulations. ! Be sure to use a dedicated power circuit. Never use a power supply shared by another appliance.

  • Page 294

    SiEN34-705 Heat Pump 60Hz (RXYQ5~54P) 2.7.1 Power Circuit, Safety Device, and Cable Requirements ! A power circuit (see the following table) must be provided for connection of the unit. This circuit must be protected with the required safety devices, i.e. a main switch, a slow blow fuse on each phase and an earth leakage circuit breaker.

  • Page 295

    Heat Pump 60Hz (RXYQ5~54P) SiEN34-705 2.7.2 Wiring Connection Example for Whole System Power supply Outdoor unit Earth leakage Main switch circuit breaker Fuse Fuse Earth leakage Power circuit breaker supply Main switch COOL/HEAT selector Remote control Indoor unit figure 19 Note: ! Make sure the weak electric wiring (i.e.

  • Page 296

    SiEN34-705 Heat Pump 60Hz (RXYQ5~54P) 2.7.4 Transmission Wiring Connection Procedure ! Referring to figure 21, 22 connect the transmission wiring between outdoor unit and indoor unit, outdoor unit and outdoor unit of other system, outdoor unit and outdoor unit of same system (only multi system) or to COOL/HEAT selector.

  • Page 297

    Heat Pump 60Hz (RXYQ5~54P) SiEN34-705 ! All transmission wiring is to be procured on site. All wiring should use sheathed vinyl cord 0.75-1.25 mm2 or cable (duplex). (Triplex only for the COOL/HEAT selector.) ! Transmission wiring (About the symbol 1 ~ 3, see figure 21, 22) should be done within the following limitations.

  • Page 298

    SiEN34-705 Heat Pump 60Hz (RXYQ5~54P) ! The transmission wiring inside the EL.COMPO.BOX should be secured using the clamp (1) as shown in figure 24. Retain to the EL.COMPO.BOX with the accessory clamp (1). In the EL.COMPO.BOX (A1P) (A5P) (A5P) Retain to the EL.COMPO.BOX with the accessory clamp (1).

  • Page 299

    Heat Pump 60Hz (RXYQ5~54P) SiEN34-705 Attach insulation sleeves Power supply Power supply (3N~50Hz 380-415V) terminal block Branch switch, Overcurrent breaker Ground wire Earth leakage circuit breaker Ground terminal Ground wire Clamp (1) (accessory) Clamp (1) (accessory) figure 26 ! The L1, L2, L3 and N phases of the power wiring should be secured separately to the hook using the included clamp (1).

  • Page 300

    SiEN34-705 Heat Pump 60Hz (RXYQ5~54P) 2.7.6 Procedure for Wiring Inside Units ! Referring to figure 27, secure and wire the power and transmission wiring using the included clamp (1), (2), and (3). [In case of 5~10HP type] Transmission wiring Power Retain with accessory wiring clamp (3).

  • Page 301

    Heat Pump 60Hz (RXYQ5~54P) SiEN34-705 Air Tight Test and Vacuum Drying Note: ! Always use nitrogen gas for the airtightness test. ! Absolutely do not open the shutoff valve until the main power circuit insulation measurement has been completed. (measuring after the shutoff valve is opened will cause the insulation value to drop.) 2.8.1 Preparations <Needed tools>...

  • Page 302

    SiEN34-705 Heat Pump 60Hz (RXYQ5~54P) 2.8.2 Air tight test and vacuum drying method After finished piping work, carry out air tight test and vacuum drying. <Air tight test> Pressurize the liquid and gas pipes to 4.0MPa (40bar) (do not pressurize more than 4.0MPa (40bar)).

  • Page 303

    Heat Pump 60Hz (RXYQ5~54P) SiEN34-705 Pipe Insulation ! Insulation of pipes should be done after performing “2-8 Air Tight Test and Vacuum Drying”. ! Always insulate the liquid side piping and gas side piping in the interunit piping and refrigerant branching kit. Failing to insulate the pipes could cause leaking or burns. (The gas side piping can reach temperatures of 120°C.

  • Page 304

    SiEN34-705 Heat Pump 60Hz (RXYQ5~54P) 2.10 Checking of Device and Installation Conditions Be sure to check the followings. For those doing electrical work 1. Make sure there is no faulty transmission wiring or loosen a nut. See “2-7-4 Transmission Wiring Connection Procedure”. 2.

  • Page 305

    Heat Pump 60Hz (RXYQ5~54P) SiEN34-705 2.11 Additional Refrigerant Charge and Check Operation The outdoor unit is charged with refrigerant when shipped from the factory, but depending on the size and length of the piping when installed, it may require additional charging. For charging the additional refrigerant, follow the procedure in this chapter.

  • Page 306

    SiEN34-705 Heat Pump 60Hz (RXYQ5~54P) <Tightening torque> Tightening torque N·m (Turn clockwise to close) Shutoff valve size Shaft (valve body) Cap (valve lid) Service port φ 9.5 5.4 - 6.6 13.5 - 16.5 Hexagonal wrench 4 mm φ 12.7 8.1 - 9.9 18.0 - 22.0 Hexagonal wrench 11.5 - 13.9...

  • Page 307

    Heat Pump 60Hz (RXYQ5~54P) SiEN34-705 [How to Check How Many Units are Connected] It is possible to find out how many indoor or outdoor unit in the system are turned on by operating the push button on the PC-board (A1P) of outdoor unit (In case of multi system master unit).

  • Page 308

    SiEN34-705 Heat Pump 60Hz (RXYQ5~54P) <About refrigerant charging> ! The refrigerant charge port is connected to the piping inside the unit. When the unit is shipped from the factory, the unit’s internal piping is already charged with refrigerant, so be careful when connecting the charge hose. ! After adding the refrigerant, make sure to close the lid of the refrigerant charging port.

  • Page 309

    Heat Pump 60Hz (RXYQ5~54P) SiEN34-705 4. Perform the refrigerant charging operation following [Refrigerant charging operation procedure] as shown below, and charge the remaining refrigerant of the “additional charging amount”. For performing the refrigerant charging operation the push button on the PC-board (A1P) of outdoor unit (Incase of multi system master unit) are use.

  • Page 310

    SiEN34-705 Heat Pump 60Hz (RXYQ5~54P) Method 1: By the H8P (MULTI) LED display 4 (ON): Master unit 5 (Blinking): Sub unit 1 3 (OFF): Sub unit 2 Method 2: By the transmission wiring to indoor unit Transmission wiring is connected: Master unit Transmission wiring is not connected : Sub unit 1 or Sub unit 2 (2) If necessary, set the field setting by using the dip switch on the outdoor unit PC-board (A1P).

  • Page 311

    Heat Pump 60Hz (RXYQ5~54P) SiEN34-705 (3) Check the LED display on the outdoor unit PC-board (A1P) is as shown in the table below and transmission is normal. SERV. C/H SELECTOR MODE TEST/ LED display MONIT L.N.O.P DEMA-ND MULTI (Default status of IND MASTER SLAVE shipped) Single system...

  • Page 312

    SiEN34-705 Heat Pump 60Hz (RXYQ5~54P) 2.12 Onsite Settings Note: In the case of a multi system, all onsite settings should be made on the master unit. Settings made on sub units are invalid. The outdoor unit to which the indoor unit transmission wire are connected is the master unit, and all other units are sub units.

  • Page 313

    Heat Pump 60Hz (RXYQ5~54P) SiEN34-705 2.13 Test Run 2.13.1 Before Test Run ! Make sure the following works are completed in accordance with the installation manual. $ Piping work $ Wiring work $ Air tight test $ Vacuum drying $ Additional refrigerant charge ! Check that all work for the indoor unit are finished and there are no danger to operate.

  • Page 314

    SiEN34-705 Heat Pump 60Hz (RXYQ5~54P) 2.14 Caution for Refrigerant Leaks (Points to note in connection with refrigerant leaks) Introduction The installer and system specialist shall secure safety against leakage according to local regulations or standards. The following standards may be applicable if local regulations are not available.

  • Page 315

    4. Dealing with the situations where the result exceeds the maximum concentration level. Where the installation of a facility results in a concentration in excess of the maximum concentration level then it will be necessary to revise the system. Please consult your Daikin supplier.

  • Page 316

    Si34-705 Part 3 Operation Manual 1. Heat Pump / Cooling Only 50Hz (RX(Y)Q5~54P) ......310 1-1 Safety Cautions ..................311 1-2 Specifications ..................312 1-3 What to do before Operation ..............312 1-4 Remote Controller and COOL/HEAT Selector: Name and Function of Each Switch and Display (Refer to figure 2 and 3) ...............313 1-5 Operation Range ..................313 1-6 Operation Procedure ................314...

  • Page 317: Operation Manual

    Operation Manual SiEN34-705 Heat Pump / Cooling Only 50Hz (RX(Y)Q5~54P) OPERATION MANUAL System air conditioner RXYQ5PY1 RXQ5PY1 RXYQ8PY1 RXQ8PY1 RXYQ10PY1 RXQ10PY1 RXYQ12PY1 RXQ12PY1 RXYQ14PY1 RXQ14PY1 RXYQ16PY1 RXQ16PY1 RXYQ18PY1 RXQ18PY1 RXYQ20PY1 RXQ20PY1 RXYQ22PY1 RXQ22PY1 RXYQ24PY1 RXQ24PY1 RXYQ26PY1 RXQ26PY1 RXYQ28PY1 RXQ28PY1 RXYQ30PY1...

  • Page 318: Safety Cautions

    Be sure only to use acces- dry cloth. sories made by Daikin which are specifically designed for Never touch the internal parts of the controller. use with the equipment and have them installed by a profes- Do not remove the front panel.

  • Page 319: Specifications

    (kg) operation that corresponds to your system type and mark. Refrigerant type R-410A R-410A R-410A If your installation has a customized control system, ask your Daikin Refrigerant charge (*1) (kg) 10.0 12.3 12.5 dealer for the operation that corresponds to your system.

  • Page 320: Operation Range

    SiEN34-705 Operation Manual 1-4 Remote Control and COOL/HEAT Selector: This display shows the programmed time of the system start or stop. Name and Function of Each Switch and Dis- Display “ ” (inspection/test operation) play TEST When the inspection/test operation button is pressed, the display (Refer to figure 2 and 3) shows the mode in which the system actually is.

  • Page 321: Operation Procedure

    Operation Manual SiEN34-705 1-6 Operation Procedure FOR SYSTEMS WITH COOL/HEAT SELECTOR (except RXQ series) (Refer to figure 4 and 7) • Operation procedure varies according to the combination of out- door unit and remote control. Read the chapter “What to do before operation”.

  • Page 322

    SiEN34-705 Operation Manual Press air flow direction adjust button. Press the on/off button. Refer to the chapter “Adjusting the air flow direction” for The operation lamp lights up and the system starts operation. details. Press the air flow direction adjust button (only for FXC, FXF, FXH, FXK, FXA).

  • Page 323

    Wall Mounted figure 13 Note • The movable limit of the flap is changeable. Contact your Daikin dealer for details. (Only for Double-flow, Multi-flow, Corner, Ceiling-suspended and Wall-mounted.) figure 11 When the timer is programmed to stop the system after 3 •...

  • Page 324: Optimum Operation

    Note To prevent overloading of the compressor motor, the air condi- • Contact your Daikin dealer in case of changing the combi- tioner starts 5 minutes after it is turned ON again in case it was nation or setting of group control and two remote control turned OFF just before.

  • Page 325

    It is neces- communication between the units, causing them to stop. sary to clean the interior of the indoor unit. Ask your Daikin dealer Operation automatically restarts when the noise goes away. for details on cleaning the unit. This operation requires a qualified service person.

  • Page 326: Trouble Shooting

    Contact your dealer. 3. Operation lamp 4. Malfunction code • When asking your dealer to repair, inform related staff of the Measure: Notify your Daikin dealer and report the malfunction details as follows: code. • Product No. of air conditioner: Refer to the warranty card.

  • Page 327

    Operation Manual SiEN34-705 • Table 1 “Inspection Cycle” and “Maintenance Cycle” Lists ! Moving and discarding the unit • Contact your dealer for removing and reinstalling the system air Maintenance Cycle Inspection conditioner since they require technical expertise. Name of Main Part [replacements and/or Cycle •...

  • Page 328

    SiEN34-705 Operation Manual Heat Pump 60Hz (RXYQ5~54P) OPERATION MANUAL System air conditioner RXYQ5PYL(E) RXYQ8PYL(E) RXYQ10PYL(E) RXYQ12PYL(E) RXYQ14PYL(E) RXYQ16PYL(E) RXYQ18PYL(E) RXYQ20PYL(E) RXYQ22PYL(E) RXYQ24PYL(E) RXYQ26PYL(E) RXYQ28PYL(E) RXYQ30PYL(E) RXYQ32PYL(E) RXYQ34PYL(E) RXYQ36PYL(E) RXYQ38PYL(E) RXYQ40PYL(E) RXYQ42PYL(E) RXYQ44PYL(E) RXYQ46PYL(E) RXYQ48PYL(E) RXYQ50PYL(E) RXYQ52PYL(E) RXYQ54PYL(E) 3P171361-6J EM06A034 (0611) HT FS Operation Manual...

  • Page 329

    Be sure only to use acces- dry cloth. sories made by Daikin which are specifically designed for Never touch the internal parts of the controller. use with the equipment and have them installed by a profes- Do not remove the front panel.

  • Page 330

    Before initiating operation, contact your Daikin dealer for the operation that corresponds to your system type and mark. If your installation has a customized control system, ask your Daikin dealer for the operation that corresponds to your system. Operation Manual...

  • Page 331

    Operation Manual SiEN34-705 Filter sign reset button Refer to the operation manual of indoor unit. Fan speed control button Press this button to select the fan speed of your preference. Operation mode selector button Press this button to select the operation mode of your preference. Air flow direction adjust button Refer to the chapter “Operation Procedure - Adjusting the Air Flow Direction”.

  • Page 332

    SiEN34-705 Operation Manual FOR SYSTEMS WITHOUT COOL/HEAT SELECTOR (Refer to figure 4) figure 7.3 figure 4 Select operation mode with the Cool/Heat selector as follows: Press the operation mode selector button several times and “ ” “ ” Cooling operation (Refer to figure 7.1) select the operation mode of your choice;...

  • Page 333

    Operation Manual SiEN34-705 Note • The heating capacity drops as the outside temperature falls. If this happens, use another heating device together with the unit. (When using the appliances which produce open fire together, ventilate a room constantly.) Do not place appliances which produce open fire in places exposed to the air flow from the unit or under the unit.

  • Page 334

    4 hours, the system will stop • The movable limit of the flap is changeable. Contact your after 3 hours and start 1 hour later. Daikin dealer for details. (Only for FXC, FXF, FXH, FXK, FXA) 2-6-5 Setting the Master Remote Control •...

  • Page 335

    Note To prevent overloading of the compressor motor, the air condi- • Contact your Daikin dealer in case of changing the combi- tioner starts 5 minutes after it is turned ON again in case it was nation or setting of group control and two remote control turned OFF just before.

  • Page 336

    It is neces- communication between the units, causing them to stop. sary to clean the interior of the indoor unit. Ask your Daikin dealer Operation automatically restarts when the noise goes away. for details on cleaning the unit. This operation requires a qualified 2-9-16 Hot Air is Emitted even though the Unit is service person.

  • Page 337

    Contact your dealer. 3. Operation lamp 4. Malfunction code • When asking your dealer to repair, inform related staff of the Measure: Notify your Daikin dealer and report the malfunction details as follows: code. • Product No. of air conditioner: Refer to the warranty card.

  • Page 338

    SiEN34-705 Operation Manual ! Moving and discarding the unit • Table 1 “Inspection Cycle” and “Maintenance Cycle” Lists • Contact your dealer for removing and reinstalling the system air Maintenance Cycle conditioner since they require technical expertise. Inspection Name of Main Part [replacements and/or •...

  • Page 339

    Operation Manual SiEN34-705 Operation Manual...

  • Page 340: Part 4 Precautions For New Refrigerant (r-410a)

    SiEN34-705 Part 4 Precautions for New Refrigerant (R-410A) 1. Precautions for New Refrigerant (R-410A) .........334 1.1 Outline ....................334 1.2 Refrigerant Cylinders................336 1.3 Service Tools..................337 Precautions for New Refrigerant (R-410A)

  • Page 341

    Precautions for New Refrigerant (R-410A) SiEN34-705 1. Precautions for New Refrigerant (R-410A) Outline 1.1.1 About Refrigerant R-410A ! Characteristics of new refrigerant, R-410A 1. Performance Almost the same performance as R-22 and R-407C 2. Pressure Working pressure is approx. 1.4 times more than R-22 and R-407C. 3.

  • Page 342

    SiEN34-705 Precautions for New Refrigerant (R-410A) ! Thermodynamic characteristic of R-410A Temperature Steam pressure Density Specific heat at constant Specific enthalpy Specific entropy (°C) (kPa) (kg/m pressure (kJ/kgK) (kJ/kg) (kJ/KgK) Liquid Vapor Liquid Vapor Liquid Vapor Liquid Vapor Liquid Vapor Precautions for New Refrigerant (R-410A)

  • Page 343: Refrigerant Cylinders

    Precautions for New Refrigerant (R-410A) SiEN34-705 Refrigerant Cylinders ! Cylinder specifications 2 The cylinder is painted refrigerant color (pink). 2 The cylinder valve is equipped with a siphon tube. Cylinder Refrigerant can be charged in liquid state with cylinder in upright position.

  • Page 344: Service Tools

    SiEN34-705 Precautions for New Refrigerant (R-410A) Service Tools R-410A is used under higher working pressure, compared to previous refrigerants (R-22,R-407C). Furthermore, the refrigerating machine oil has been changed from Suniso oil to Ether oil, and if oil mixing is occurred, sludge results in the refrigerants and causes other problems.

  • Page 345

    Precautions for New Refrigerant (R-410A) SiEN34-705 1. Flaring tool Flare gauge ! Specifications 2 Dimension A Unit:mm Tube O.D. −0.4 Nominal size Class-2 (R-410A) Class-1 (Conventional) 6.35 9.52 13.2 13.0 12.70 16.6 16.2 15.88 19.7 19.4 19.05 24.0 23.3 ! Differences 2 Change of dimension A Dimension A For class-1: R-407C...

  • Page 346

    SiEN34-705 Precautions for New Refrigerant (R-410A) 2. Torque wrench ! Specifications 2 Dimension B Unit:mm Nominal size Class-1 Class-2 Previous No change in tightening torque No change in pipes of other sizes ! Differences 2 Change of dimension B Only 1/2", 5/8" are extended For class-1: R-407C For class-2: R-410A Dimension B...

  • Page 347

    Precautions for New Refrigerant (R-410A) SiEN34-705 4. Leak tester ! Specifications 2 Hydrogen detecting type, etc. 2 Applicable refrigerants R-410A, R-407C, R-404A, R-507A, R-134a, etc. ! Differences 2 Previous testers detected chlorine. Since HFCs do not contain chlorine, new tester detects hydrogen.

  • Page 348

    SiEN34-705 Precautions for New Refrigerant (R-410A) 2 Temperature scale indicates the relationship between pressure and temperature in gas saturated state. ! Differences 2 Change in pressure 2 Change in service port diameter 7. Charge hose for R-410A (Hose with ball valve) ! Specifications 2 Working pressure 5.08 MPa (51.8 kg/cm 2 Rupture pressure 25.4 MPa (259 kg/cm...

  • Page 349

    Precautions for New Refrigerant (R-410A) SiEN34-705 9. Weigher for refrigerant charge ! Specifications 2 High accuracy TA101A (for 10-kg cylinder) = ± 2g TA101B (for 20-kg cylinder) = ± 5g 2 Equipped with pressure-resistant sight glass to check liquid refrigerant charging. 2 A manifold with separate ports for HFCs and previous refrigerants is equipped as standard accessories.

  • Page 350

    SiEN34-705 Index Symbols Field Wiring Heal Pump, Cooling Only (50Hz/60Hz).. “88” cannot be Cleared from the Central Remote Field Wiring Heat Pump, Cooling Only (50Hz/60Hz).. Controller ............202 Filter Sign Setting ........... 93 Flange Connection ..........34 Additional Charge of Refrigerant at installation time ... Flare Connection ............

  • Page 351

    SiEN34-705 Operation ............116 Signal Interference due to Use of Multiple Core Cable Simplified Remote Controller ........90 BRC2A51............90 BRC2C51 ............90 Sleeve and Insert Work...........20 Test Operation ............82 Procedure and Outline........82 Thermal Insulation Work .........35 Transmission Wiring between the Cool/heat Selector and the Outdoor Unit is too Close to a High Voltage Wire ..........201 Vacuum Drying............39 VRV Inspection Sheet ...........165...

  • Page 352

    SiEN34-705 Drawings & Flow Charts Additional Charge of Refrigerant at installation time ... Degree of vacuum ..........41 Drain Pipe Trap Shape Defective......197 Operational steps ..........45 Drain Pipe Work (Indoor) ........47 Refrigerant Charging Instructions .....45 Drain Pipe Gradient and Support..... 47 Siphon tube ............45 Drain Trap............

  • Page 353: Table Of Contents

    Striking a Balance between System Installation and RXYQ10PYL, RXYQ12PYL......176 General Construction Work......15 RXYQ14PY1, RXYQ16PY1, RXYQ18PY1..173 Supplementation on É and Ñ ....... 115 RXYQ14PYL, RXYQ16PYL, RXYQ18PYL..177 RXYQ5PY1.............170 RXYQ5PYL.............174 The analysis of major installation problems ... 14 RXYQ8PY1.............171 Thermal Insulation Work (Refrigerant Piping) ..35 RXYQ8PYL.............175 Essential Points of Thermal Insulation.....

  • Page 354

    Weigher for refrigerant charge ......342 Wiring Diagrams (Heat Pump 50Hz/60Hz, Cooling Only 50Hz) .............182 RXQ10PY1 .............189 RXQ12PY1 .............190 RXQ14PY1, RXQ16PY1, RXQ18PY1 ....191 RXQ5PY1 ............187 RXQ8PY1 ............188 RXYQ10PY1, RXYQ10PYL......184 RXYQ12PY1, RXYQ12PYL......185 RXYQ14PY1, RXYQ16PY1, RXYQ18PY1, RXYQ14PYL, RXYQ16PYL, RXYQ18PYL........186 RXYQ5PY1, RXYQ5PYL........182 RXYQ8PY1, RXYQ8PYL........183 Drawings & Flow Charts...

  • Page 355

    Specifications are subject to change without environment. This challenge demands the eco design prior notice. Daikin Europe N.V. explicitly rejects any liability for any direct or and development of a wide range of products and an indirect damage, in the broadest sense, arising from or related to the use energy management system, resulting in energy and/or interpretation of this publication.

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  • GMacD Dec 22, 2015 11:58:
    Your website is crap in providing useful informatio​n on your products.