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Daikin VRV II Series Design, Installation & Testing Instructions

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Design, Installation & Testing Instruction
R410A Heat Pump 50Hz
RXYQ5MY1B
RXYQ8MY1B
RXYQ10MY1B
RXYQ12MY1B
RXYQ14MY1B
RXYQ16MY1B
RXYQ18MY1B
RXYQ20MY1B
RXYQ22MY1B
RXYQ24MY1B
RXYQ26MY1B
Si39-303
RXYQ28MY1B
RXYQ30MY1B
RXYQ32MY1B
RXYQ34MY1B
RXYQ36MY1B
RXYQ38MY1B
RXYQ40MY1B
RXYQ42MY1B
RXYQ44MY1B
RXYQ46MY1B
RXYQ48MY1B

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Summary of Contents for Daikin VRV II Series

  • Page 1 Si39-303 Design, Installation & Testing Instruction R410A Heat Pump 50Hz RXYQ5MY1B RXYQ28MY1B RXYQ8MY1B RXYQ30MY1B RXYQ10MY1B RXYQ32MY1B RXYQ12MY1B RXYQ34MY1B RXYQ14MY1B RXYQ36MY1B RXYQ16MY1B RXYQ38MY1B RXYQ18MY1B RXYQ40MY1B RXYQ20MY1B RXYQ42MY1B RXYQ22MY1B RXYQ44MY1B RXYQ24MY1B RXYQ46MY1B RXYQ26MY1B RXYQ48MY1B...
  • Page 2 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 3: Table Of Contents

    Si39-303 System System System System R410A PLUS Series R410A PLUS Series R410A PLUS Series R410A PLUS 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 ..............5 1.4 Model Selection..................6 2.
  • Page 4 Si39-303 1.2 Standard Operation Limit ..............156 1.3 Standard Supplied Accessories ............156 1.4 Option Accessory .................157 1.5 Technical Specifications ..............158 1.6 Electrical Specifications................160 2. Main Components ................161 3. Selection of Location................162 4. Inspecting and Handling the Unit ............164 5. Unpacking and Placing the Unit ............165 6.
  • Page 5 Si39-303 8.5 The Fan Direction does not Correspond to the Setting ......215 8.6 White Mist comes out of a Unit.............216 8.7 Noise of Air Conditioners..............216 8.8 Dust comes out of the Unit ..............216 8.9 The Units can Give off Odours .............216 8.10 The Outdoor Unit Fan does not Spin............216 8.11 The Display Shows "88"...
  • Page 6 Si39-303 Table of Contents...

  • Page 7: Part 1 General Information

    Si39-303 Part 1 Part 1 Part 1 Part 1 General Information General Information General Information 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 ..............5 1.4 Model Selection..................6 2. Points to Bear in Mind at the System Design..........8 2.1 Points Relating to the Performance of the Air Conditioning Units ....8 2.2 The Installation is of Vital Importance ............9 2.3 Striking a Balance between System Installation...

  • Page 8: Product Outline

    Product Outline Si39-303 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 cassette type FXZQ — — — — — — (Multi flow) 600×600 Ceiling mounted...

  • Page 9: External Appearance

    Si39-303 Product Outline External Appearance 1.2.1 Indoor Units Ceiling mounted cassette type (Double flow) Ceiling mounted duct type FXCQ20M FXMQ40M FXCQ25M FXMQ50M FXCQ32M FXMQ63M FXCQ40M FXMQ80M FXCQ50M FXMQ100M FXMQ40~125M FXCQ63M FXMQ125M FXCQ80M FXMQ200M FXCQ125M FXMQ250M FXMQ200 · 250M Ceiling mounted cassette type Ceiling suspended type (Multi flow) 600×600...
  • Page 10 Product Outline Si39-303 1.2.2 Outdoor Units RXYQ5M RXYQ8M,10M RXYQ12M,14M,16M RXYQ18M, 20M 8,10HP 12,14,16HP 18, 20HP RXYQ22M, 24M, 26M RXYQ28M, 30M, 32M 22, 24, 26HP 28, 30, 32HP RXYQ34M, 36M RXYQ38M, 40M, 42M 34, 36HP 38, 40, 42HP RXYQ44M, 46M, 48M 44, 46, 48HP General Information...

  • Page 11: Combination Of Outdoor Units

    Si39-303 Product Outline Combination of Outdoor Units Module System Capacity Number of units 10HP 12HP 14HP 16HP 18HP 20HP 22HP 24HP 26HP 28HP 30HP 32HP 34HP 36HP 38HP 40HP 42HP 44HP 46HP G G G 48HP 18~48HP are realized by combining 8, 10, 12, 14 and 16HP. General Information...

  • Page 12: Model Selection

    Product Outline Si39-303 Model Selection VRV II Heat Pump Series Connectable indoor units number and capacity 10HP 12HP 14HP 16HP System name RXYQ5M RXYQ8M RXYQ10M RXYQ12M RXYQ14M RXYQ16M Outdoor unit 1 RXYQ5M RXYQ8M RXYQ10M RXYQ12M RXYQ14M RXYQ16M Outdoor unit 2 –...
  • Page 13 Si39-303 Product Outline Connectable indoor unit Type Model Name Power Supply Ceiling mounted FXCQ — 125M — — cassette type (Double flow) Ceiling mounted cassette type FXZQ — — — — — — (Multi flow) 600×600 Ceiling mounted FXFQ — 100M 125M —...

  • Page 14: Points To Bear In Mind At The System Design

    Points to Bear in Mind at the System Design Si39-303 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 15: The Installation Is Of Vital Importance

    Si39-303 Points to Bear in Mind at the System Design The Installation is of Vital Importance The analysis of major installation problems experienced during the year of 1988 is shown below; How these installation problems affect an equipment are shown below: General Information...

  • Page 16: Striking A Balance Between System Installation And General Construction Work (Comprehensive Flow Chart)

    Points to Bear in Mind at the System Design Si39-303 Striking a Balance between System Installation and General Construction Work (Comprehensive Flow Chart) Note: 1. The division of the work should be thoroughly clarified. (This applies particularly to work relating to the connection of control wiring, fitting of remote controller and central control panel, boundary work on areas such as connection of drain piping and humidification supply piping, inspection and foundation) 2.

  • Page 17: Points To Bear In Mind When Preparing The Contract Drawings

    Si39-303 Points to Bear in Mind at the System Design 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 work.
  • Page 18 Points to Bear in Mind at the System Design Si39-303 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 19 Si39-303 Points to Bear in Mind at the System Design Step 2: The following sequence should be followed in order to prepare control circuit diagrams in accordance with the system list which has already been completed: Preparation of the Diagrams should be prepared for each individual outdoor unit. The outdoor unit model number should Control Circuit be inserted into the diagram.

  • Page 20: Installation

    Installation Si39-303 Installation Step by Step Installation Procedure The above list indicates the order in which the individual work operations are normally carried out but this order may be varied where local conditions warrant such a change General Information...

  • Page 21: Work Involved In Individual Operations And Points To Be Borne In Mind

    Si39-303 Installation 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 downward gradient.
  • Page 22 Installation Si39-303 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 23 Si39-303 Installation 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 24 Installation Si39-303 Method for If brazing work is carried out without passing nitrogen gas through the pipes which are being brazed then this allows the formation of oxidation bubbles on the inside surface of the pipes. These oxidation bubbles Replacing are then carried along inside the pipes to cause damage to various members of the system such as valves Nitrogen or compressors and the system ceases to function properly.
  • Page 25 Si39-303 Installation Covering of Covering is an extremely important operation as it prevents water, dirt or dust from getting inside the pipes. Moisture inside the pipes was a constant source of trouble in the past. The utmost care is Refrigerant Pipes required to nip this problem in the bud.
  • Page 26 Installation Si39-303 Refrigerant Pipe Flushing is a method of cleaning extraneous matter out of pipes using pressurized gas. Flushing [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 27 1. General use (L bend joint, socket joint, T joint, etc.) 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: R410A RXYQ-M Series Refer detail of DAIKIN REFNET joint and REFNET header on page 126.
  • Page 28 Installation Si39-303 c) Brazing The Multi-System requires only copper/copper jointing and the jointing method is explained below. The use of “hard solder” is essential. The R410A Heat Pump RXYQ-M Series uses a wide range of piping sizes. You should therefore be careful when selecting the nozzle tip.
  • Page 29 Si39-303 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) 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 30 Installation Si39-303 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 31 Si39-303 Installation Flaring Procedure General Information...
  • Page 32 Installation Si39-303 You must use a torque wrench but if you are obliged to install the unit without a torque wrench, you may follow the installation method mentioned below. recommendable but in case of After the work is finished, make sure to check that is no gas leak. emergency When you keep on tightening the flare nut with a spanner, there is a point where the tightening torque suddenly increases.
  • Page 33 Si39-303 Installation Flange a) The flange sheet surface should be clean and undamaged. (Clean any dirt away with a cloth and check Connection that there has been no damage.) b) Coat the flange sheet surface with refrigeration oil (Ester or ether oil) and then insert the packing. (Do not use SUNISO oil.) c) Tighten the bolts in opposite corners first to ensure that the connection is true.
  • Page 34 Installation Si39-303 3.2.4 Thermal Insulation Work (Refrigerant Piping) Operational steps Insulation (with the exception of Refrigerant pipe Insulation Air tight test the jointed work (jointed areas) areas) (V0985) Materials The thermal insulation materials which are used must be well able to withstand the heat from the pipes. Example: Heat pump type: Heat resistant polyethylene foam (heat resistance of at least 120°C) Cooling only: Polyethylene foam (heat resistance of 100°C or more)
  • Page 35 Si39-303 Installation 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: a) The liquid and gas piping in each refrigerant system should be pressurized in turn in accordance with of Testing the following steps.
  • Page 36 Installation Si39-303 Checking for [Check 1] (Where pressure falls while carrying out Steps 1 to 3 described on previous page) Check by ear..Listen for the sound of a major leak. Leaks Check by hand..Check for leak by feeling around jointed sections with hand. ∗...
  • Page 37 Si39-303 Installation 3.2.6 Vacuum Drying What is vacuum Vacuum drying is: “The use of a vacuum pump to vaporize (gasify) the moisture (liquid) inside the pipes and expel it leaving drying? 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 38 Installation Si39-303 Choosing a General Refrigerant piping content volume of the VRVII R410A Series is larger than the VRV Inverter Series, and Vacuum Pump 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 39 Si39-303 Installation 2. Vacuum pump maintenance Because of their nature, most vacuum pumps contain large amounts of oil which lubricates bearings, etc., and functions to enhance airtightness of pistons. When using a vacuum pump to discharge air from refrigerant piping, moisture in the air tends to get mixed in with the oil. You must therefore change oil periodically and make sure the proper oil level is maintained.
  • Page 40 Installation Si39-303 Vacuum Drying There are two vacuum drying methods and the appropriate one should always be chosen to conform with individual local conditions. Procedure [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 41 Si39-303 Installation 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 due to a long term of works When there is a risk that rainwater may have entered the pipes during installation The special vacuum drying method is the same as the standard method except that nitrogen is introduced...
  • Page 42 Installation Si39-303 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 43 Si39-303 Installation <*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.
  • Page 44 Installation Si39-303 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 45 Si39-303 Installation Grouped Drain 1. It is standard work practice to make connections to the main pipe from above. The pipe down from the combination should be as large as possible. Piping 2. The pipework should be kept as short as possible and the number of indoor units per group kept to a minimum.
  • Page 46 Installation Si39-303 Piping Diameter Select piping diameter from the below table in accordance with the amount of condensation drained by all units with a common drain pipe. for Grouped Consider 2 l/hr of drainage for every 1 HP. For example, drainage from 3 units running at 2 HP and 2 Drain Pipes units running at 3 HP is calculated as follows.
  • Page 47 Si39-303 Installation Insulate the drain hose inside the building. (PRECAUTIONS FOR DRAIN RAISING PIPING) Install the drain raising pipes at a height of less than 310 mm. Install the drain raising pipes at a right angle to the indoor unit and no more than 300 mm from the unit. If converging multiple drain pipes, install according to the procedure shown below.
  • Page 48 Installation Si39-303 WHEN ELECTRIC WIRING WORK IS NOT FINISHED Remove the electric parts box lid, connect a power supply and remote controller to the terminals. (Refer to the How to CONNECT WIRINGS (Refer to Installation Manual)) Next, press the inspection/test operation button “ ”...
  • Page 49 Si39-303 Installation Ceiling Mounted 1. Rig drain piping Cassette Type 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 (FXFQ-M Multi- that of the connecting pipe (PVC pipe, nominal diameter 25 mm, outside diameter 32 mm).
  • Page 50 Installation Si39-303 2 After piping work is finished, check if drainage flows smoothly. Add approximately 2000 cc 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 controller to the terminals.
  • Page 51 Si39-303 Installation Ceiling Mounted Drain Piping Cassette Corner Type (FXKQ-M) Caution Setting the unit at an angle opposite to the drain piping might cause leaks. Note: Use the drain outlet for maintenance to drain water from the drain pan. General Information...
  • Page 52 Installation Si39-303 Caution Drain piping connections Do not connect the drain piping directly to sewage pipes that smell of ammonia. The ammonia in the sewage might enter the indoor unit through the drain pipes and corrode the heat exchanger. General Information...
  • Page 53 Si39-303 Installation Ceiling Mounted Drain Piping 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) Rig drain piping • The diameter of the drain pipe should be greater than or equal to the diameter of the connecting pipe (vinyl tube;...
  • Page 54 Installation Si39-303 (2) After piping work is finished, check drainage flows smoothly. • Open the water inlet lid, add approximately 1000 cc 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 55 Si39-303 Installation Ceiling Mounted Duct Type (FXMQ-M) Note: If installing central drain piping, install according to the following right figure. (Install a drain trap for each indoor unit.) General Information...
  • Page 56 Installation Si39-303 Ceiling Rig the drain pipe as shown below and take measures against condensation. Improperly rigged piping could Suspended Type lead to leaks and eventually wet furniture and belongings. (FXHQ-M) (1) Rig drain piping For drain work, rig the pipes so that they drain reliably. The drain pipe outlet direction can be chosen from the right rear, right, left rear, and left.
  • Page 57 Si39-303 Installation (2) Confirm that smooth drainage is achieved after the piping work. Add 600 cc of water in the drain pan from the air outlet for confirming drainage. (Refer to Fig. 25) Air outlet Pump used for kerosene stoves. Bucket Fig.
  • Page 58 Installation Si39-303 Floor Standing/ Concealed Floor Standing Type (FXLQ-M, FXNQ- 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 59 Si39-303 Installation d) In the case of a remote controller with a three way selector for cooling, heating and ventilation, twin core cable should be used when the ventilation mode is not required and three core cable should be used when three way selection is required.
  • Page 60 Installation Si39-303 Note: The rated current for package air conditioners which use special purpose built-in compressor motors in their compressors in 1.2 times the operating current shown on the name plate. 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.
  • Page 61 Si39-303 Installation 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. These fittings are designed to inhibit secondary noise resulting from the transmission of vibrations and of Noise and operating noise from the main unit to the ducts or to the rest of the building.
  • Page 62 Installation Si39-303 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 63 Si39-303 Installation 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.) General Information...
  • Page 64 Installation Si39-303 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 65 Si39-303 Installation 3.2.14 Installation of Outdoor Unit Operational steps Prepare foundation Install outdoor unit (V1150) 3D040102A Notes: 1. The proportions of cement : sand : gravel for the concrete shall be 1 : 2 : 4, and ten reinforcement bars that their diameter are 10mm, (approx. 300mm intervals) shall be placed. 2.
  • Page 66 Installation Si39-303 Caution in installation 1. Execute the installation work by checking the foundation strength and levelness to avoid any occurrence of vibration and noise. Fix the unit tightly with foundation bolts. (Prepare 4 sets of M12 foundation bolts with proper nuts and washers.) The proper length of the foundation bolts form the surface of the base is 20mm.
  • Page 67 Si39-303 Installation Ex: passing piping out through the front 1.Plug the areas marked with “ ”. (When the piping is routed from the front panel.) 2.Gas side piping 3.Liquid side piping Caution Caution label 3P115922 4P115178 General Information...

  • Page 68: Test Operation

    Test Operation Si39-303 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. Are the designated wires used? ¡...
  • Page 69 Si39-303 Test Operation 4.1.3 Check Operation * During check operation, mount front panel to avoid the misjudging. * Check operation is mandatory for normal unit operation. (When the check operation is not executed, alarm code "U3" will be displayed.) ¡ The test operation is started automatically.
  • Page 70 Test Operation Si39-303 4.1.4 Confirmation on normal operation • Conduct normal unit operation after the check operation has been completed. (When outdoor air temperature is 24ºC or higher, the unit can not be operated with heating mode. See the instruction manual attached.) Confirm that the indoor/outdoor units can be operated normally.

  • Page 71: Operation When Power Is Turned On

    Si39-303 Test Operation 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 72: Outdoor Unit Pc Board Layout

    Test Operation Si39-303 Outdoor Unit PC Board Layout Outdoor unit PC board (2) Set mode display (LED) H1P H2P H3P H4P H5P H6P H7P (3) Mode setting switch MODE RETURN TEST RESET (1) Microcomputer normal monitor 1 2 3 4 1 2 3 4 (4) Local setting switch Connection terminal for transmission use...

  • Page 73: Field Setting

    Si39-303 Test Operation Field Setting 4.4.1 Field Setting from Remote Controller Individual function of indoor unit can be changed from the remote controller. At the time of installation or after service inspection / repair, make the local setting in accordance with the following description.
  • Page 74 Test Operation Si39-303 4.4.1.2 Wireless Remote Controller - Indoor Unit BRC7C type 1. When in the normal mode, push the button for 4 seconds or more, and operation then enters the “field set mode.” 2. Select the desired “mode No.” with the button.
  • Page 75 Si39-303 Test Operation 4.4.1.3 Simplified Remote Controller BRC2A51 Group No. setting by simplified remote controller. 1. Remove the cover of remote controller. 2. While in normal mode, press the [BS6] BUTTON (field set) to enter the FIELD SET MODE. 3. Select the mode No. [00] with [BS2] BUTTON (temperature setting L) and [BS3] BUTTON (temperature setting M).
  • Page 76 Test Operation Si39-303 4.4.1.4 Setting Contents and Code No. – VRV 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 77 Si39-303 Test Operation 4.4.1.5 Applicable Range of Field setting Ceiling mounted cassette type Ceiling Ceiling Ceiling Wall Floor Concealed mounted mounted suspended mounted standing Floor Multi Double flow Corner type built-in type duct type type type type standing flow type FXFQ FXCQ FXKQ...
  • Page 78 Test Operation Si39-303 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 79 Si39-303 Test Operation Air Flow Make the following setting according to the ceiling height. The setting position No. is set to “01” at the factory. Adjustment - In the Case of FXAQ, FXHQ Ceiling Height Setting Switch Setting Position Mode No. Setting Wall-mounted type : Standard 13(23)
  • Page 80 Test Operation Si39-303 Setting of Air Make the following air flow direction setting according to the respective purpose. Flow Direction Adjustment Range Setting Table Mode No. First Code No. Second Code No. Setting 13 (23) Upward (Draft prevention) Standard Downward (Ceiling soiling prevention) Air Flow Rate When the optional parts (high performance filter, etc.) is installed, sets to change fan speed for...
  • Page 81 Si39-303 Test Operation 4.4.1.7 Centralized Control Group No. Setting BRC1A Type If carrying out centralized control by central remote controller or unified ON/OFF controller, group No. must be set for each group individually by remote controller. Group No. setting by remote controller for centralized control 1.
  • Page 82 Test Operation Si39-303 Group No. Setting Example Centoral Remote Controller Indoor/Outdoor Outdoor/Outdoor Indoor/Outdoor Outdoor/Outdoor F1 F2 F1 F2 F1 F2 F1 F2 F1 F2 F1 F2 P1 P2 F1 F2 P1 P2 F1 F2 P1 P2 F1 F2 P1 P2 Group Control by Remote Contoller Main 1-00...
  • Page 83 Si39-303 Test Operation 4.4.1.8 Setting of Operation Control Mode from Remote Controller (Local Setting) The operation control mode is compatible with a variety of controls and operations by limiting the functions of the operation remote controller. Furthermore, operations such as remote controller ON/OFF can be limited in accordance with the combination conditions.
  • Page 84 Test Operation Si39-303 How to Select Whether operation by remote controller will be possible or not for turning on/off, controlling temperature or setting operation mode is selected and decided by the operation mode given on Operation Mode the right edge of the table below. Example ON by remote OFF by remote...
  • Page 85 Si39-303 Test Operation 4.4.2 Field Setting from Outdoor Unit 4.4.2.1 Field Setting from Outdoor Unit Setting by dip switches The following field settings are made by dip switches on PC board. Dipswitch Setting item Description Setting Cool / Heat select Used to set cool / heat select by remote controller DS1-1 equipped with outdoor unit.
  • Page 86 Test Operation Si39-303 MODE RETURN TEST RESET (V2760) There are the following three setting modes. Setting mode 1 (H1P off) Initial status (when normal) : Used to select the cool/heat setting. Also indicates during “abnormal”, “low noise control” and “demand control”. Setting mode 2 (H1P on) Used to modify the operating status and to set program addresses, etc.
  • Page 87 Si39-303 Test Operation “Setting mode 1” “Normally, “Setting mode 1” is set. In case of other status, push MODE button (BS1) one time and set to “Setting mode 1”. <Selection of setting items> LED display example Push the SET button (BS2) and set Setting (displaying) item LED display to a setting item you want.
  • Page 88 Test Operation Si39-303 “Setting mode 2” Setting item Description Push and hold the MODE button Operates by Standard compressor only when inverter (BS1) for 5 seconds and set to compressor malfunctions. Temporary operation until the “Setting mode 2”. EMG (Emergency compressor is replaced.
  • Page 89 Si39-303 Test Operation Setting item Description Emergency operation (Setting for the master unit operation prohibition in multi- outdoor-unit system) Emergency operation Used to temporarily prohibit the applicable outdoor unit (Setting for the from operating should there be any faulty part in multi- slave unit 1 outdoor-unit system.
  • Page 90 Test Operation Si39-303 Setting item display C/H selection Setting condition display MODE TEST Demand Setting item noise Master Slave ∗ Factory set 8777778 ∗ EMG (emergency Normal operation operation) INV compressor 8777787 Emergency operation operation inhibited. 8777777 ∗ Address Binary number 8777778 Cool / Heat Unified address...
  • Page 91 Si39-303 Test Operation Setting item display C/H selection Setting condition display MODE TEST Demand Setting item noise Master Slave ∗ Factory set About 20:00 8777778 Night-time low noise 8777787 ∗ About 22:00 (factory operation start setting About 24:00 8777877 About 6:00 8777778 Night-time low noise About 7:00...
  • Page 92 Test Operation Si39-303 c. Monitor mode LED display To enter the monitor mode, push the Setting item Data display MODE button (BS1) when in “Setting mode 1”. Number of units for sequential 9 7 7 7 7 7 7 See below starting, and others 9 7 7 7 7 7 8 C/H unified address...
  • Page 93 Si39-303 Test Operation Push the SET button and match with the LEDs No. 1 - 15, push the RETURN button, and enter the data for each setting. Data such as addresses and number of units is expressed as binary numbers; the two ways of expressing are as follows: The No.
  • Page 94 Test Operation Si39-303 4.4.2.2 Cool / Heat Mode Switching There are the following 5 cool/heat switching modes. Set cool/heat separately for each outdoor unit system by indoor unit remote controller. Set cool/heat separately for each outdoor unit system by cool/heat switching remote controller.
  • Page 95 Si39-303 Test Operation Set Cool / Heat Separately for Each Outdoor Unit System by Cool/Heat Switching Remote Controller It does not matter whether or not there is outdoor - outdoor unit wiring. Set outdoor unit PC board DS1-1 to “outdoor” (factory set). Set cool/heat switching to “individual”...
  • Page 96 Test Operation Si39-303 & Set Cool / Heat for More Than One Outdoor Unit System Simultaneously in Accordance with Unified Master Outdoor Unit by Indoor Unit Remote Controller Install the outdoor unit external control adapter on either the outdoor-outdoor, indoor- outdoor, or transmission line.
  • Page 97 Si39-303 Test Operation Set Cool / Heat for More Than One Outdoor Unit System Simultaneously in Accordance with Unified Master Outdoor Unit by Cool/Heat Switching Remote Controller Add and change the following items to & . Install cool/heat switching remote controller on the group master outdoor unit. Set SS1 on the group master outdoor unit PC board.
  • Page 98 Test Operation Si39-303 Address setting for & and ' (Set lower 5 digits with binary number.) [No.0 to No.31] Adapter PCB Address Outdoor unit PCB LED Set with setting mode 2 No 0 77777 No 1 77778 No 2 77787 No 3 77788 No 4...
  • Page 99 Si39-303 Test Operation 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. A.
  • Page 100 Test Operation Si39-303 Image of operation in the case of A Image of operation in the case of B Image of operation in the case of A, B General Information...
  • Page 101 Si39-303 Test Operation Setting of By connecting the external contact input to the demand input of the outdoor unit external control adapter (optional), the power consumption of unit operation can be saved suppressing the Demand compressor operating condition. Operation A. When the demand operation is carried out by external instructions (with the use of the outdoor unit external control adapter).
  • Page 102 Test Operation Si39-303 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 103 Si39-303 Test Operation Detailed Setting 1. Setting mode 1 (H1P off) In setting mode 2, push the BS1 (MODE button) one time. → Setting mode 2 is entered and Procedure of Low H1P lights. Noise Operation During the setting mode 1 is displayed, “In low noise operation” and “In demand control” are and Demand displayed.
  • Page 104 Test Operation Si39-303 & 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 Night-time "...
  • Page 105 Si39-303 Test Operation 4.4.2.4 Setting of Refrigerant Additional Charging Operation When additional refrigerant is not charged all with outdoor unit in stop mode, operate the outdoor unit and charge the liquid refrigerant from the service port of liquid stop value. The additional charging operation is activated by pushbutton switch on the outdoor unit PC board.
  • Page 106 Test Operation Si39-303 [Operation procedure detail] After turning the respective remote switch of indoor and outdoor units off and charging the refrigerant, turn on the power of indoor and outdoor units. Do not fail to turn the power off and charge the refrigerant with outdoor unit in stop mode before adding the refrigerant following this procedure, otherwise resulting in trouble.
  • Page 107 Si39-303 Test Operation 4.4.2.6 Setting of Vacuuming Mode In order to perform vacuuming operation at site, fully open the expansion valves of indoor and outdoor units to turn on some solenoid valves. [Operating procedure] With Setting Mode 2 while the unit stops, set (B) Refrigerant recovery / Vacuuming mode to ON.

  • Page 108: Caution For Refrigerant Leaks

    Caution for Refrigerant Leaks Si39-303 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 109 Si39-303 Caution for Refrigerant Leaks Step 2: Calculate the smallest room volume (m 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 O tdoor nit Indoor nit (b) Where there is a room division but there is an opening between the rooms sufficiently large...
  • Page 110 Caution for Refrigerant Leaks Si39-303 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 111: Hand Over To Customer

    Si39-303 Hand Over to Customer Hand Over to Customer Operational Steps Explain how to Hand over Make final report Complete test run operate relevant printed (test run equipment materials 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 112: Appendix

    Appendix Si39-303 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 113 Si39-303 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 114: Piping Installation Point

    Appendix Si39-303 Piping Installation Point Max. 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 115 Si39-303 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 116: Allowable Piping Length

    Appendix Si39-303 Allowable Piping Length 7.3.1 Branch with refnet joint (Connection of 8 indoor units Heat pump system) Branch with refnet joint REFNET joint (C) Outdoor unit One outdoor unit installed (RXYQ5 ~ 16) Indoor units (1-8) Outdoor unit REFNET joint (A-G) First outdoor When multiple branch...
  • Page 117 Si39-303 Appendix 7.3.2 Branch with refnet joint and refnet header (Connection of 8 indoor units Heat pump system) Branch with refnet joint and refnet header Outdoor unit REFNET joint (B) One outdoor unit installed Refnet header (RXYQ5 ~16) Indoor units (1-8) Outdoor unit REFNET joint (A •...
  • Page 118 Appendix Si39-303 7.3.3 Branch with refnet header (Connection of 8 indoor units Heat pump system) Branch with refnet header Outdoor unit Refnet header One outdoor unit installed (RXYQ5 ~16) Indoor units (1-8) Outdoor unit Refnet header When multiple outdoor units installed (RXYQ18 ~ ) Indoor units (1-8)

  • Page 119: Refrigerant Branch Kit Selection

    Si39-303 Appendix Refrigerant branch kit selection Refrigerant branch kits can only be used with R410A. 7.4.1 How to select the refnet joint When using refnet joints at the first branch counted from the outdoor unit side. Choose from the following table in accordance with the capacity of the outdoor unit. Outdoor unit capacity type Refrigerant branch kit name RXYQ5 type...
  • Page 120 Appendix Si39-303 7.4.2 How to select the refnet header 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 capacity index Refrigerant branch kit name <...

  • Page 121: Pipe Size Selection

    Si39-303 Appendix Pipe size selection For an outdoor unit multi installation (RXYQ18 48MY1B), make the settings in accordance with the following figure. Oil-equalizing line (part D) Piping between outdoor branch and indoor unit (part C) Piping between outdoor branches (part B) Piping between outdoor unit and refrigerant branch kit (part A) Piping between outdoor unit and refrigerant branch kit (part A)
  • Page 122 Appendix Si39-303 Between refrigerant branch kit and indoor unit Pipe size for direct connection to indoor unit must be the same as the connection size of indoor unit. (Unit:mm) Piping size (outer diameter) indoor capacity type Gas pipe Liquid pipe 20, 25, 32, 40, 50 type ø12.7 ø6.4...

  • Page 123: How To Calculate The Additional Refrigerant To Be Charged

    Si39-303 Appendix How to calculate the additional refrigerant to be charged 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 at right, no refrigerant needs to be added. Total length (m) Total length (m) Total length (m)
  • Page 124 Appendix Si39-303 3P114237A General Information...

  • Page 125: Outdoor Unit Multi Connection Piping Kit

    Si39-303 Appendix Outdoor Unit Multi Connection Piping Kit This kit includes the following parts. BHFP22M90 ) Gas side (1 pcs.) ) Liquid side (1 pcs.) ) Reducing socket (1 pcs.) ) Socket (1 pcs.) BHFP22M135 ) Gas side (1 pcs.) ) Liquid side (1 pcs.) ) Gas side (1 pcs.) ) Liquid side (1 pcs.)
  • Page 126 Appendix Si39-303 Field supply parts Selection procedure Caution: Outdoor units multi connection piping connect right according to the INSTALLATION MANUAL of outdoor unit. Pipe size selection and cutting position of JOINT According to the following table cut the joint or reducer with a pipe cutter for use. BHFP22M90 BHFP22M135 Cut the pipe with a pipe cutter.
  • Page 127 Si39-303 Appendix 7.7.1 In case of Front Piping Illustration External BHFP22M90 BHFP22M135 BHFP22M90 General Information...
  • Page 128 Appendix Si39-303 BHFP22M135 Installation of Cutting the Reducer (1) and Gas Side Attached Pipe (3) Gas Side Pipes Connection Piping BHFP22M90 General Information...
  • Page 129 Si39-303 Appendix BHFP22M135 Refer to P. 122 for Table 6 and P. 120 for Table 7, 8 and 9. Installation of BHFP22M90 liquid side pipes and oil pipe Refer to P. 120 for Table 4 and 5. General Information...
  • Page 130 Appendix Si39-303 BHFP22M135 Refer P. 120 for Table 7, 8 and 9. After connection piping General Information...
  • Page 131 Si39-303 Appendix 7.7.2 In case of Underside Piping Illustration Caution Be sure to secure space for brazing and piping work under the outdoor unit. BHFP22M90 Cutting the joint and reducer According to table 4 and 5 cut the joint and reducer for use. Connection piping Connect pipes with joint (Refer to fig.7) Refer to P.

  • Page 132: Refnet Pipe Connections For Vrv Ii R410A Series

    Appendix Si39-303 REFNET Pipe Connections for VRV II R410A Series 7.8.1 REFNET Joint KHRP26M22T • Gas Side • Liquid Side Insulation Insulation V3041 KHRP26M33T • Liquid Side • Gas Side Insulation Insulation V3042 KHRP26M72T Insulation • Liquid Side • Gas Side Insulation V3043 KHRP26M73T...
  • Page 133 Si39-303 Appendix 7.8.2 REFNET Header KHRP26M22H • Gas Side • Liquid Side Insulation Insulation V3046 KHRP26M33H • Gas Side • Liquid Side Insulation Insulation V3047 KHRP26M72H • Gas Side • Liquid Side Insulation Insulation V3048 KHRP26M73H • Gas Side • Liquid Side Insulation Insulation V3049...
  • Page 134 Appendix Si39-303 REFNET Joint and REFNET joint Header Installation (Gas line and liquid line branch pipe) If the selected building pipe differs form the branch pipe in size, cut the connection with a pipe cutter as shown below. Install the branch pipe either vertically or horizontally. Insulate the branch pipe as described in the kit installation manual.

  • Page 135: Vrv Inspection Sheet

    Si39-303 Appendix 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 136 Appendix Si39-303 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 1 M Ω...
  • Page 137 Si39-303 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 138 Appendix Si39-303 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 139 Si39-303 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 140: Piping System Diagrams

    Appendix Si39-303 7.10 Piping System Diagrams 7.10.1 Outdoor Unit RXYQ5MY1B General Information...
  • Page 141 Si39-303 Appendix RXYQ8MY1B RXYQ10MY1B RXYQ12MY1B 4D040338A General Information...
  • Page 142 Appendix Si39-303 RXYQ14MY1B RXYQ16MY1B 4D040339A General Information...
  • Page 143 Si39-303 Appendix 7.10.2 Indoor Unit FXCQ, FXZQ, 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) Electronic Filter Filter expansion valve DU220-602D...

  • Page 144: Wiring Diagrams

    Appendix Si39-303 7.11 Wiring Diagrams 7.11.1 Outdoor Unit RXYQ5MY1B General Information...
  • Page 145 Si39-303 Appendix RXYQ8MY1B RXYQ10MY1B RXYQ12MY1B General Information...
  • Page 146 Appendix Si39-303 RXYQ14MY1B RXYQ16MY1B General Information...
  • Page 147 Si39-303 Appendix 7.11.2 Field Wiring RXYQ5~16MY1B General Information...
  • Page 148 Appendix Si39-303 RXYQ18~32MY1B General Information...
  • Page 149 Si39-303 Appendix RXYQ34~48MY1B General Information...

  • Page 150: Bad Examples And Good Examples In Installation

    Appendix Si39-303 7.12 Bad Examples and Good Examples in Installation 7.12.1 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 controller and the remote controller’s address display is showing non-existent addresses such as 13 or 15.
  • Page 151 Si39-303 Appendix 7.12.2 Example 2: Mismatch between cables connecting indoor and outdoor units and corresponding piping. (all model) Situation The remote controller 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 152 Appendix Si39-303 7.12.3 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 resulting in Problem and drain leakage.
  • Page 153 Si39-303 Appendix 7.12.4 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 154 Appendix Si39-303 7.12.5 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 figure. Problem and REFNET joints Remedial Action...
  • Page 155 Si39-303 Appendix 7.12.6 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 156 Appendix Si39-303 7.12.7 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 high voltage wire.
  • Page 157 Si39-303 Appendix 7.12.9 Example 9: “88 88 88 88” cannot be cleared from the central remote controller. Situation The display on the central remote controller does not change from its initial state after turning power ON. Initial display of the central remote controller Cause 1.
  • Page 158 Appendix Si39-303 General Information...

  • Page 159: Part 2 Installation Manual

    Si39-303 Part 2 Part 2 Part 2 Part 2 Installation Manual Installation Manual Installation Manual Installation Manual 1. Introduction ..................155 1.1 Combination ..................155 1.2 Standard Operation Limit ..............156 1.3 Standard Supplied Accessories ............156 1.4 Option Accessory .................157 1.5 Technical Specifications ..............158 1.6 Electrical Specifications................160 2.
  • Page 160 Be sure only to use accessories made by Daikin which are specifically designed for use with the equipment and have them installed by a professional. If unsure of installation procedures or use, always contact your Daikin dealer for advice and information. Caution The refrigerant R410A requires strict cautions for keeping the system clean, dry and tight.

  • Page 161: Introduction

    14.0 to 133.5kW and nominal heating capacities ranging from 16.0 to 150.0kW. The RXYQ-M units can be combined with Daikin VRV series indoor units for air conditioning purposes. The present installation manual describes the procedures for unpacking, installing and connecting the RXYQ-M units.

  • Page 162: Standard Operation Limit

    Introduction Si39-303 Standard Operation Limit The figures below assume following operating conditions for indoor and outdoor units: Equivalent pipe length........7.5m Level difference............ 0m Cooling Heating 15.5 25 27 Outdoor temperature (°CDB) Indoor temperature (°CWB) Outdoor temperature (°CWB) Indoor temperature (°CDB) Range for continuous operation Range for pull down operation Range for warming up operation...

  • Page 163: Option Accessory

    Si39-303 Introduction [ RXYQ5 . 8 . 10 type ] [ RXYQ12 . 14 . 16 type ] 1. Operation manual Installation manual Clamp 2. Attached pipe Option Accessory To install the above outdoor units, the following optional parts are also required. Refrigerant branching kit (For R410A only: Always use an appropriate kit dedicated for your system.) REFNET header...

  • Page 164: Technical Specifications

    Introduction Si39-303 Technical Specifications General RXYQ5MY1B RXYQ8MY1B RXYQ10MY1B RXYQ12MY1B RXYQ14MY1B RXYQ16MY1B Nominal cooling capacity 14.0 22.4 28.0 33.5 40.0 44.5 Nominal heating capacity 16.0 25.0 31.5 37.5 45.0 50.0 Nominal input cooling / heating 3.79 / 4.34 6.97 / 6.89 9.00 / 9.31 10.6 / 10.8 14.3 / 12.9...
  • Page 165 Si39-303 Introduction General RXYQ42MY1B RXYQ44MY1B RXYQ46MY1B RXYQ48/MY1B Nominal cooling capacity 117.0 123.0 129.0 134.0 Nominal heating capacity 132.0 138.0 145.0 150.0 Nominal input cooling / heating 40.2 / 37.4 41.8 / 38.8 45.5 / 40.9 46.9 / 42.1 × × ×...

  • Page 166: Electrical Specifications

    Introduction Si39-303 Electrical Specifications Model RXYQ5MY1B RXYQ8MY1B RXYQ10MY1B RXYQ12MY1B RXYQ14MY1B RXYQ16MY1B Phase Frequency Power supply Voltage 380-415 380-415 380-415 Voltage torerance ±10 ±10 ±10 ±10 ±10 ±10 Recommended fuses Phase Frequency Voltage 380-415 380-415 380-415 380-415 380-415 380-415 Compressor (4.4-4.8)+ (5.7-6.2)+ Nominal running (2.8-3.1)+...

  • Page 167: Main Components

    Si39-303 Main Components 2. Main Components For main components and function of the main components, refer to the Engineering Data Book and the Service Manual Si39-302. Installation Manual...

  • Page 168: Selection Of Location

    Selection of Location Si39-303 3. 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 169 Si39-303 Selection of Location • Locations where sulfurous acids and other corrosive gases may be present in the atmosphere. Copper piping and soldered joints may corrode, causing refrigerant to leak. • Locations where equipment that produces electromagnetic waves is found. The electromagnetic waves may cause the control system to malfunction, preventing normal operation.

  • Page 170: Inspecting And Handling The Unit

    Inspecting and Handling the Unit Si39-303 4. 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 171: Unpacking And Placing The Unit

    Si39-303 Unpacking and Placing the Unit 5. Unpacking and Placing the Unit Make sure the unit is installed level on a sufficiently strong base to prevent vibration and 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 172 Unpacking and Placing the Unit Si39-303 Ex: passing piping out through the front 1.Plug the areas marked with “ ”. (When the piping is routed from the front panel.) 2.Gas side piping 3.Liquid side piping Installation Manual...

  • Page 173: Refrigerant Piping

    Si39-303 Refrigerant Piping 6. Refrigerant Piping Caution After completing installation, be sure to open the valve. (See 6-6 Additional refrigerant charge for details) (Operating the unit with the valve shut will break the compressor.) Use R410A to add refrigerant. (The R410A refrigerant cylinder has a pink stripe painted around it.) All field piping must be installed by a licensed refrigeration technician and must comply with relevant local and national regulations.

  • Page 174: Connecting The Refrigerant Piping

    Refrigerant Piping Si39-303 Connecting the Refrigerant Piping 1. The local branch piping can be connected either forward or to the sides (taken out of the bottom) as shown in the figure. 1.Left-side connection 2.Front connection 3.Right-side connection [One outdoor unit installed: In case of RXYQ5-16MY1B] Front connection: Remove the shutoff valve cover to connect.
  • Page 175 Si39-303 Refrigerant Piping Caution Be sure to use the attached pipe when carrying out piping work in the field. Be sure that the local piping does not touch other pipes, the bottom panel or side panel. Especially for the bottom and side connection, be sure to protect the local piping with the provided insulation, to prevent it from coming into contact with the casing.
  • Page 176 Refrigerant Piping Si39-303 5. Protection against contamination when installing pipes • Take measures to prevent foreign materials like moisture and contamination from mixing into the system. Place Installation period Protection method More than a month Pinch the pipe Outdoor Less than a month Pinch or tape the pipe Indoor Regardless of the period...
  • Page 177 Si39-303 Refrigerant Piping <Cautions for installation of multiple outdoor units> 1. The piping between the outdoor units must be routed level or slightly upward to avoid the risk of oil detention to the piping side. Pattern 1 to indoor unit Piping between outdoor units to indoor unit Piping between outdoor units...
  • Page 178 Refrigerant Piping Si39-303 2. To avoid the risk of oil retention to the stopping unit side, always connect the shutoff valve and the piping between outdoor units as shown in the figure A or figure B. Prohibited pattern to indoor unit to indoor unit Oil collects to the stopping outdoor unit.

  • Page 179: Example Of Connection

    Si39-303 Refrigerant Piping Example of Connection Branch with refnet joint Branch with refnet joint and refnet header Branch with refnet header Example of connection (Connection of 8 indoor units Heat pump system) REFNET joint (A-G) Outdoor unit Outdoor unit Refnet header REFNET joint (A •...
  • Page 180 Refrigerant Piping Si39-303 Installation Manual...

  • Page 181: Leak Test And Vacuum Drying

    Si39-303 Leak test Vacuum Drying The units were checked for leaks by the manufacturer. Confirm that the valves are firmly closed before pressure test or vacuuming. To prevent entry of any impurities and insure sufficient pressure resistance, always use the special tools dedicated for R410A.
  • Page 182 Si39-303 Opening shutoff valve 1. Remove the cap and turn the valve counterclockwise with the hexagon wrench (JISB4648). 2. Turn it until the shaft stops. Do not apply excessive force to the shutoff valve. Doing so may break the valve body, as the valve is not a backseat type.

  • Page 183: Pipe Insulation

    Si39-303 After all the piping has been connected, use nitrogen to perform a gas leak check. tightening pipe size A (mm) flare shape torque (Ncm) φ9.5 90 ±2 3270 - 3990 12.8 - 13.2 φ12.7 4950 - 6030 16.2 - 16.6 R=0.4~0.8 φ15.9 6180 - 7540...

  • Page 184: Additional Refrigerant Charge

    Si39-303 Additional refrigerant charge Caution Refrigerant cannot be charged until field wiring has been completed. Refrigerant may only be charged after performing the leak test and the vacuum drying (see above). When charging a system, care shall be taken that its maximum permissible charge is never exceeded, in view of the danger of liquid hammer.
  • Page 185 Si39-303 One outdoor unit installed: In case of RXYQ5-16MY1B 1. Pressure reducing valve 2. Nitrogen 3. Tank 4. Siphon system 5. Measuring instrument 6. Vacuum pump 7. Valve A 8. Gas side 9. Outdoor unit 10. Liquid side When multiple outdoor units installed: 11.

  • Page 186: Field Wiring

    Field Wiring Si39-303 7. Field Wiring Caution All field wiring and components must be installed by a licensed electrician and must comply with relevant local and national regulations. The field wiring must be carried out in accordance with the wiring diagrams and the instructions given below.

  • Page 187: Power Circuit And Cable Requirements

    Si39-303 Field Wiring Power Circuit and Cable Requirements A power circuit (see table below) 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 leak detector.

  • Page 188: General

    Field Wiring Si39-303 General Up to 3 units can be connected by crossover power source wiring between outdoor units. However, units of smaller capacity must be connected downstream. For details, refer to the equipment design data and technical data. Make sure to connect the power source wire to the power source terminal block and to clamp it as shown in figure 14, chapter “Field line connection”.

  • Page 189: Examples

    Si39-303 Field Wiring Examples System example 1. Field power supply 2. Main switch 3. Earth leak detector 4. Fuse 5. Cool / heat selector 6. Remote controller power supply wiring (sheathed cable) transmission wiring (sheathed cable) Field line connection L1, L2, L3, N-phase of the power cord should be clamped to the safety catch using the included clamp material.
  • Page 190 Field Wiring Si39-303 In the case RXYQ5 type In the case RXYQ8 . 10 type [ RXYQ5 . 8 . 10 type ] [ RXYQ12 . 14 . 16 type ] 1. Retain with accessory clamps (3). 2. Electric wiring 3.
  • Page 191 Si39-303 Field Wiring Caution <Precautions when laying power wiring> Use round pressure terminals for connections to the power terminal block. When none are available, follow the instructions below. Do not connect wiring of different thicknesses to the power terminal block. (Slack in the power wiring may cause abnormal heat.) When connecting wiring which is the same thickness, do as shown in the figure below.
  • Page 192 Field Wiring Si39-303 Field line connection: transmission wiring and cool/heat selection [In case of RXYQ5-16MY1B] F2 Q1 Q2 A B C F A B C C/H SELECTOR TO IN/D UNIT TO OUT/D UNIT TO MULTI UNIT 1.Cool/heat selector 2.Outdoor unit P.C. board (A1P) F1 F2 F1 F2 F1 F2...
  • Page 193 Si39-303 Field Wiring Caution Be sure to follow the limits below. If the unit-to-unit cables are beyond these limits, it may result in malfunction of transmission. Maximum wiring length: 1000m Total wiring length: 2000m Max branches No. of branches: 16 Max.
  • Page 194 Field Wiring Si39-303 Caution For low-noise operation, it is necessary to get the optional “External control adaptor for outdoor unit”. For details, see the installation manual attached to the adaptor. Picking power line and transmission line Be sure to let the power line and the transmission line pass through a conduit hole. Pick the power line from the upper hole on the left side plate, from the front position of the main unit (through the conduit hole of the wiring mounting plate - optional parts) or from a knock out hole to be made in the unit’s bottom plate.
  • Page 195 Si39-303 Field Wiring Precautions when knocking out knock holes To punch a knock hole, hit on it with a hammer. After knocking out the holes, we recommend you paint the edges and areas around the edges using the repair paint to prevent rusting. When passing electrical wiring through the knock holes, remove any burrs from the knock holes and wrap the wiring with protective tape to prevent damage.
  • Page 196 Field Wiring Si39-303 [In case of RXYQ18-48MY1B] The interconnecting wiring between the outdoor units in the same pipe line must be connected to the Q1/Q2 (Out Multi) terminals. Connecting the wires to the (Out-Out) terminals results in system malfunction. The wiring for the other lines must be connected to the F1/F2 (Out-Out) terminals of the P- board in the outdoor unit to which the interconnecting wiring for the indoor units is connected.

  • Page 197: Before Operation

    Si39-303 Before Operation 8. Before Operation Checks Before Initial Start-up Caution Make sure that the circuit breaker on the power supply panel of the installation is switched off. Attach the power wire securely. Introducing power with a missing N-phase or with a mistaken N-phase will break the equipment. After the installation, check the following before switching on the circuit breaker: 1.

  • Page 198: Test Run

    Before Operation Si39-303 Test Run Caution After completing installation, be sure to open the valve. (Operating the unit with the valve shut will break the compressor.) Power supply connection When running the unit for the first time after installation, be sure to perform a test run following these steps for test run.
  • Page 199 Si39-303 Before Operation Remote controller displays an error: Malfunction Installation error Remedial action code The shutoff valve of an indoor E3 E4 Check referring to the table in “6-6 Additional unit is left closed. F3 UF Refrigerant Charge”. The phases of the power to Exchange two of the three phases (L1, L2, L3) to make the outdoor units are a positive phase connection.

  • Page 200: Caution For Refrigerant Leaks

    Caution for Refrigerant Leaks Si39-303 9. Caution for Refrigerant Leaks Caution for Refrigerant Leaks 9.1.1 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 201 Si39-303 Caution for Refrigerant Leaks Step 2: Calculate the smallest room volume (m 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 O tdoor nit Indoor nit (b) Where there is a room division but there is an opening between the rooms sufficiently large...
  • Page 202 Caution for Refrigerant Leaks Si39-303 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 203: Part 3 Operation Manual

    Si39-303 Part 3 Part 3 Part 3 Part 3 Operation Manual Operation Manual Operation Manual Operation Manual 1. Safety Cautions...................199 2. What to Do Before Operation..............202 3. Remote Controller and Changeover Switch: Name and Function of Each Switch and Display ........203 4.
  • Page 204 Si39-303 Thank you for purchasing this Daikin air conditioner. Carefully read this operation manual before using the air conditioner. It will tell you how to use the unit properly and help you if any trouble occurs. After reading the manual, file it away for future reference.

  • Page 205: Safety Cautions

    Improper installation or attachment of equipment or accessories could result in electric shock, short-circuit, leaks, fire or other damage to the equipment. Be sure only to use accessories made by Daikin which are specifically designed for use with the equipment and have them installed by a professional.
  • Page 206 Safety Cautions Si39-303 After a long use, check the unit stand and fitting for damage. If they are left in a damaged condition, the unit may fall and result in injury. Neither place a flammable spray bottle near the air conditioner nor perform spraying. Doing so may result in a fire.
  • Page 207 Si39-303 Safety Cautions Never press the button of the remote controller with a hard, pointed object. The remote controller may be damaged. Never pull or twist the electric wire of a remote controller. It may cause the unit to malfunction. Do not operate the air conditioner when using a room fumigation - type insecticide.

  • Page 208: What To Do Before Operation

    This operation manual is for the following systems with standard control. 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. Outdoor units...

  • Page 209: Remote Controller And Changeover Switch: Name And Function Of Each Switch And Display

    Si39-303 Remote Controller and Changeover Switch: Name and Function of Each Switch and Display 3. Remote Controller and Changeover Switch: Name and Function of Each Switch and Display RXYQ series REYQ series 1. On/off button Press the button and the system will start. Press the button again and the system will stop. 2.
  • Page 210 Remote Controller and Changeover Switch: Name and Function of Each Switch and Display Si39-303 5. Display “ ” (ventilation/air cleaning) This display shows that the total heat exchange and the air cleaning unit are in operation. (These are optional accessories) 6.

  • Page 211: Warning

    Never inspect or service the unit by yourself. Ask a qualified service person to perform this work. To prevent refrigerant leak, contact your Daikin dealer. When the system is installed and run in a small room, it is required to keep the concentration of the refrigerant, if by and chance coming out, bellow the limit.

  • Page 212: Operation Range

    Operation Range Si39-303 5. Operation Range Use the system in the following temperature and humidity ranges for safe and effective operation. COOLING HEATING Outdoor temperature –5°~43°CDB –20°~21°CDB – 20°~15.5°CWB Indoor temperature 21°~32°CDB 15°~27°CDB 14°~25°CWB ≤ 80%* Indoor humidity * To avoid condensation and water dripping out the unit. If the temperature or the humidity is beyond these conditions, safety devices may work and the air conditioner may not operate.

  • Page 213: Operation Procedure

    Si39-303 Operation Procedure 6. Operation Procedure Operation procedure varies according to the combination of outdoor unit and remote controller. Read the chapter “What to do before operation”. To protect the unit, turn on the main power switch 6 hours before operation. If the main power supply is turned off during operation, operation will restart automatically after the power turns back on again.
  • Page 214 Operation Procedure Si39-303 “ ” “ ” Heating operation RXYQ series REYQ series “ ” Fan only operation RXYQ series REYQ series Press the on/off button. The operation lamp lights up and the system starts operation. Adjustment For programming temperature, fan speed and air flow direction (only for the remote controller BRC1A51: FXC, FXF, FXH, FXK, FXA), follow the procedure shown below.

  • Page 215: Program Dry Operation

    Si39-303 Operation Procedure Program Dry Operation The function of this program is to decrease the humidity in your room with a minimum temperature decrease. The micro computer automatically determines temperature and fan speed. The system does not go into operation if the room temperature is low. For systems without cool/heat changeover remote control switch RXYQ series REYQ series...

  • Page 216: Adjusting The Air Flow Direction (Only For Double-Flow, Multi-Flow, Corner, Ceiling-Suspended And Wall-Mounted)

    ” and desired position “ ”. Notes: 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.) Avoid operating in the horizontal direction “ ”. It may cause dew or dust to settle on the ceiling.

  • Page 217: Programming Start And Stop Of The System With Timer

    Si39-303 Operation Procedure Programming Start and Stop of the System with Timer The timer is operated in the following two ways. Programming the stop time “ ”. The system stops operating after the set time has elapsed. Programming the start time “ ”.

  • Page 218: Setting The Master Remote Controller

    Operation Procedure Si39-303 Setting the Master Remote Controller When the system is installed, it is necessary to designate one of the remote controllers as the master remote controller. For RXYQ series When one outdoor unit is connected with several indoor units. For REYQ series Only the master remote controller can select heating and cooling or automatic (only REYQ series) operation.

  • Page 219: Precautions For Group Control System Or Two Remote Controller Control System

    Two remote controllers control one indoor unit (in case of group control system, one group of indoor units). The unit is individually operated. Notes: Contact your Daikin dealer in case of changing the combination or setting of group control and two remote controller control systems. Operation Manual...

  • Page 220: Optimum Operation

    Optimum Operation Si39-303 7. Optimum Operation Observe the following precautions to ensure the system operates properly. Adjust the air outlet properly and avoid direct air flow to room inhabitants. Adjust the room temperature properly for a comfortable environment. Avoid excessive heating or cooling.

  • Page 221: Following Symptoms Are Not Air Conditioner Troubles

    ” (changeover under control). This is because cool/heat changeover is controlled by the cool/heat changeover remote control switch. Ask your Daikin dealer where the remote control switch is installed. Fan Operation is Possible, but Cooling and Heating do not Work Immediately after the power is turned on.

  • Page 222: White Mist Comes Out Of A Unit

    If the interior of an indoor unit is extremely contaminated, the temperature distribution inside a room becomes uneven. It is necessary to clean the interior of the indoor unit. Ask your Daikin dealer for details on cleaning the unit. This operation requires a qualified service person.

  • Page 223: The Display Shows "88

    Si39-303 Following Symptoms are not Air Conditioner Troubles 8.11 The Display Shows "88" This is the case immediately after the main power supply switch is turned on and means that the remote controller is in normal condition. This continues for one minute.

  • Page 224: Troubleshooting

    3. Operation lamp 4. Malfunction code Measure: Notify your Daikin dealer and report the malfunction code. If the system does not properly operate except for the above mentioned cases and none of the above mentioned malfunctions is evident, investigate the system according to the following procedures.
  • Page 225 Si39-303 Troubleshooting Check if the heat source of the room is excessive. Check if direct sunlight enters the room. Use curtains or blinds. Check if the air flow angle is not proper. Operation Manual...
  • Page 226 Troubleshooting Si39-303 Operation Manual...

  • Page 227: Part 4 Precautions For New Refrigerant (R410A)

    Si39-303 Part 4 Part 4 Part 4 Part 4 Precautions for New Precautions for New Precautions for New Precautions for New Refrigerant (R410A) Refrigerant (R410A) Refrigerant (R410A) Refrigerant (R410A) 1. Precautions for New Refrigerant (R410A)...........222 1.1 Outline ....................222 1.2 Refrigerant Cylinders................224 1.3 Service Tools..................225 Precautions for New Refrigerant (R410A)

  • Page 228: Precautions For New Refrigerant (R410A)

    Precautions for New Refrigerant (R410A) Si39-303 Precautions for New Refrigerant (R410A) Outline 1.1.1 About Refrigerant R410A Characteristics of new refrigerant, R410A 1. Performance Almost the same performance as R22 and R407C 2. Pressure Working pressure is approx. 1.4 times more than R22 and R407C. 3.
  • Page 229 Si39-303 Precautions for New Refrigerant (R410A) Thermodynamic characteristic of R410A Temperature Steam pressure Density Specific heat at constant Specific enthalpy Specific entropy (kPa) (kg/m pressure (kJ/kgK) (kJ/kg) (kJ/KgK) Liquid Vapor Liquid Vapor Liquid Vapor Liquid Vapor Liquid Vapor Precautions for New Refrigerant (R410A)

  • Page 230: Refrigerant Cylinders

    Precautions for New Refrigerant (R410A) Si39-303 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. Caution: Do not lay cylinder on its side during charging, since it cause refrigerant in gas state to enter the system.

  • Page 231: Service Tools

    Si39-303 Precautions for New Refrigerant (R410A) Service Tools R410A is used under higher working pressure, compared to previous refrigerants (R22,R407C). 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. Therefore, gauge manifolds and charge hoses that are used with a previous refrigerant (R22,R407C) can not be used for products that use new refrigerants.
  • Page 232 Precautions for New Refrigerant (R410A) Si39-303 1. Flaring tool Flare gauge Specifications 2 Dimension A Unit:mm Tube O.D. -0.4 Nominal size Class-2 (R410A) 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: R407C For class-2: R410A...
  • Page 233 Si39-303 Precautions for New Refrigerant (R410A) 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: R407C For class-2: R410A Dimension B...
  • Page 234 Precautions for New Refrigerant (R410A) Si39-303 4. Leak tester Specifications 2 Hydrogen detecting type, etc. 2 Applicable refrigerants R410A, R407C, R404A, R507A, R134a, etc. Differences 2 Previous testers detected chlorine. Since HFCs do not contain chlorine, new tester detects hydrogen. 5.
  • Page 235 Si39-303 Precautions for New Refrigerant (R410A) 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 R410A (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 236 Precautions for New Refrigerant (R410A) Si39-303 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 237 Si39-303 Index Index Index Index Symbols “88” cannot be cleared from the central remote Field line connection ..........183 controller ............151 Field Setting ............67 Field Setting from Outdoor Unit......79 Field Wiring ............180 Additional Charge of Refrigerant......36 Filter Sign Setting ........... 72 Additional refrigerant charge .........178 Flange Connection ..........
  • Page 238 Si39-303 Program Dry Operation .........209 Programming Start and Stop of the System with Timer ............211 REFNET Header ...........127 REFNET header..........128, 148 REFNET Joint ............126 REFNET joint ............128 REFNET joints ............148 Refrigerant Cylinders ..........224 Refrigerant Leaks..........102, 194 Refrigerant Pipe Work..........17 Selection of Location........56, 162 Selection of Piping Material........167 Sequential start .............187 Service Space ............57...
  • Page 239 Si39-303 Drawings & Flow Charts Drawings & Flow Charts Drawings & Flow Charts Drawings & Flow Charts Symbols Indoor drain piping ........... 43 multiple drain pipes.......... 43 “88” cannot be cleared from the central remote Rig drain piping..........43 controller ............151 Terminal box lid ..........
  • Page 240 Si39-303 Electrical Work laying power wiring..........185 a PCB for remote control, multiple core cable Leak test............... 175 must not be used .........53 Leak tester ............228 Choosing a circuit breaker ........53 Earthing ............54 When cable more than 1.25 mm² is used ..52 Mismatch between cables connecting indoor and Example of Connection .........173 outdoor units and corresponding piping ..
  • Page 241 Si39-303 Operational steps ..........17 Turn power on ............62 The 3 Principles of Refrigerant Piping ....17 Refrigerant R410A ..........222 Remote Controller and Changeover Switch..203 Underside Piping ..........125 Unpacking and Placing the Unit ......165 selecting branch piping .........170 Selection of Location........56 Vacuum Drying............
  • Page 242 Head office: Zandvoordestraat 300, B-8400 Oostende, Belgium Umeda Center Bldg., 4-12, Nakazaki-Nishi 2-chome, Kita-ku, Osaka, 530-8323 Japan Tokyo office: Shinjuku Sumitomo Bldg., 6-1 Nishi-Shinjuku 2-chome, Shinjuku-ku, Tokyo, 163-0235 Japan ! For further improvement, specifications or designs are subject to change without prior notice. Printed in Japan 07/2003 AK...

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