Page 1 Si39-406 Design, Installation & Testing Instruction R410A Heat Recovery 60Hz REYQ96MTJU...
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
Si39-406 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 Model Selection.................... 4 2.
Page 4 Si39-406 1.5 Technical Specifications (1) ..............138 1.6 Electrical Specifications (1) ..............139 2. Main Components ................... 140 3. Selection of Location................141 4. Inspecting and Handling the Unit ............143 5. Unpacking and Placing the Unit ..............144 6. Refrigerant Piping ................... 146 6.1 Selection of Piping Material..............
Page 5 Si39-406 Part 4 Operation Manual .............. 191 1. Safety Considerations ................193 2. What to Do Before Operation..............197 3. Remote Controller and Changeover Switch: Name and Function of Each Switch and Display..............198 4. Operation Range..................200 5. Operation Procedure................201 5.1 Cooling, Heating, Automatic, and Fan Only Operation ......
Page 6 Si39-406 Table of Contents...
Page 7: Part 1 General Information
Si39-406 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 Model Selection.................... 4 2. Points to Bear in Mind at the System Design..........5 2.1 Points Relating to the Performance of the Air Conditioning Units ....
Page 8: Product Outline
Product Outline Si39-406 1. Product Outline Model Names of Indoor/Outdoor Units Indoor Units Type Model Name Power Supply Ceiling Mounted Cassette Type FXFQ — (Multi Flow) Ceiling Mounted FXSQ Built-In Type Ceiling Mounted FXMQ — — — Duct Type Wall Mounted Type FXAQ —...
Page 9: External Appearance
Si39-406 Product Outline External Appearance 1.2.1 Indoor Units Ceiling mounted cassette type (Multi flow) Wall mounted type FXAQ12MVJU FXFQ12MVJU FXAQ18MVJU FXFQ18MVJU FXAQ24MVJU FXFQ24MVJU FXFQ30MVJU FXFQ36MVJU Ceiling mounted built-in type Floor standing type FXLQ12MVJU FXSQ12MVJU FXLQ18MVJU FXSQ18MVJU FXLQ24MVJU FXSQ24MVJU FXSQ30MVJU FXSQ36MVJU FXSQ48MVJU Ceiling mounted duct type Concealed floor standing type...
Page 10: Model Selection
Product Outline Si39-406 Model Selection VRV Heat Recovery Series Connectable indoor units number and capacity 8ton Outdoor unit 1 REYQ96M Total number of connectable indoor units Total capacity of connectable indoor units (MBtu/h) 48~120 Connectable indoor unit Type Model Name Power Supply Ceiling mounted FXFQ...
Page 11: Points To Bear In Mind At The System Design
Si39-406 Points to Bear in Mind at the System Design 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 12 Points to Bear in Mind at the System Design Si39-406 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 13: The Installation Is Of Vital Importance
Si39-406 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 14: Striking A Balance Between System Installation And General Construction Work (Comprehensive Flow Chart)
Product Outline Si39-406 Model Selection VRV Heat Recovery Series Connectable indoor units number and capacity 8ton Outdoor unit 1 REYQ96M Total number of connectable indoor units Total capacity of connectable indoor units (MBtu/h) 48~120 Connectable indoor unit Type Model Name Power Supply Ceiling mounted FXFQ...
Page 15: Points To Bear In Mind When Preparing The Contract Drawings
Si39-406 Points to Bear in Mind at the System Design 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 16 Points to Bear in Mind at the System Design Si39-406 2.4.1 At the Contract Drawing Stage the Following Points are Critical!! Check points Arrangement of units 1. Have you left the access passages clear and allowed sufficient room for servicing? 2.
Page 17 Si39-406 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 18 Points to Bear in Mind at the System Design Si39-406 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 Control Circuit should be inserted into the diagram.
Page 19: Installation
Si39-406 Installation 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 20: Work Involved In Individual Operations And Points To Be Borne In Mind
Installation Si39-406 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 21 Si39-406 Installation Positioning the a) An insert is a metal tool which is inserted into a floor or a beam before the concrete is set such that fittings such as ducts, pipes or suspension bolts for hanging units can be fitted into place Insert later.
Page 22 Installation Si39-406 3. Direction: The unit must be fitted in line with the ultimately visible ceiling joints Important points 1. The suspension bolts must be strong enough to support the weight of the indoor unit. 2. Optional features must be added to the indoor unit prior to installation. 3.
Page 23 Si39-406 Installation Service Space for Indoor Units Unit (Inch) FXFQ-M type * ≥59" * ≥59" Air discharge ≥59" discharge inlet ≥59" * ≥59" * ≥59" Fig. 1 Fig. 2 NOTE Leave 7 7/8" mm or more space where marked with the *, on sides where the air outlet is closed. ·...
Page 24 Installation Si39-406 Unit (Inch) FXAQ-M type [ Space required for installation (in.) ] ≥ ≥ Obstruction ≤ 4 3/4 ≥ 100 (from floor) For installation in high places. Floor Note: Above figure means minimum value. Please keep these value at least. Unit (Inch) FXLQ-M, FXNQ-M type FXLQ...
Page 25 Si39-406 Installation Unit (Inch) BSVQ-M type BS unit proper Gas piping Suction gas piping Liquid piping Discharge gas piping Electric parts box Liquid piping NOTE) 1 4 or more Sight opening or more or more (SERVICE SPACE) (Sight opening must be of above size and provided in front of electric parts box.) Note: Above figure means minimum value.
Page 26 Installation Si39-406 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 27 Si39-406 Installation 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 Replacing oxidation bubbles are then carried along inside the pipes to cause damage to various members of Nitrogen the system such as valves or compressors and the system ceases to function properly.
Page 28 Installation Si39-406 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 Refrigerant Pipes utmost care is required to nip this problem in the bud. The end of each pieces of pipe must be covered.
Page 29 Si39-406 Installation Refrigerant Pipe Flushing is a method of cleaning extraneous matter out of pipes using Flushing 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 30 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. General Information...
Page 31 Si39-406 Points to Bear in Mind at the System Design 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 32 Installation Si39-406 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 33 Si39-406 Installation New Rank Compatible Flare Tool Compared to previous refrigerants, the components of a HFC refrigerant is small. R410A also has a higher pressure than other refrigerants. Therefore, in order to strengthen the intensity of the form and size of the flare section used for R410A (class 2) apparatus, unlike the specification of the conventional refrigerants, it was set up with different standards.
Page 34 Installation Si39-406 Flaring Procedure General Information...
Page 35 Si39-406 Installation 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 36 Installation Si39-406 Flange a) The flange sheet surface should be clean and undamaged. (Clean any dirt away with a cloth and check that there has been no damage.) Connection b) Coat the flange sheet surface with refrigeration oil (Ester or ether oil) and then insert the packing.
Page 37 Si39-406 Installation 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.
Page 38 Installation Si39-406 Heat Recovery Suction, Discharge Gas piping, liquid piping must be insulated. Example of thermal insulation work. Series 3 piping section (between outdoor unit and BS unit) 2 piping section (between BS unit and indoor unit) If you think the humidity around the cooling piping might exceed 86°F and RH80%, reinforce the insulation on the cooling piping (at least 13/16"...
Page 39 Si39-406 Installation 24 hours later: 543psi 68°F The pressure drop in such a case is deemed to be zero (successful test). 551psi 217psi 13.05psi 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.
Page 40 Installation Si39-406 1. Pressure reducing valve 2. Nitrogen 3. Tank 4. Siphon system 5. Measuring instrument 6. Vacuum pump 7. Valve A 8. Valve B 9. Suction gas line 10.Liquid side 11.Discharge gas line 12.Shutoff valve service port 13.Charge hose 14.Indoor unit 15.BS unit 16.Outdoor unit...
Page 41 Si39-406 Installation The evacuation of air conditioner piping provides the following effects. 1. Vacuum drying 2. Removes air and nitrogen (used in air-tightness test) from the inside of pipes. Therefore, it is necessary to ensure that the both purposes have been achieved in the vacuum drying operation.
Page 42 Installation Si39-406 1. Vacuum pump performance The 2 most import things for determining vacuum pump performance are as follows: (1) Exhaust velocity (2) Degree of vacuum (1) Exhaust velocity Exhaust volume is usually expressed as l/min or m³/h. The larger the number, the faster vacuum id achieved.
Page 43 Si39-406 Installation 3. Degree of vacuum measurement An extremely accurate vacuum gauge is required to test degree of vacuum. You cannot accurately measure degree of vacuum with the compound gauge on the gauge manifold. A Pirani vacuum gauge is required to measure degree of vacuum accurately. Because Pirani gauges are very sensitive and require extreme care when using, they are not very suitable for use in the field.
Page 44 Installation Si39-406 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 45 Si39-406 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...
Page 46 Installation Si39-406 ∗ The gas used for the vacuum breaking operation must be nitrogen. (The use of oxygen brings a serious risk of explosions) [Special vacuum drying time chart] General Information...
Page 47 Si39-406 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 48 Installation Si39-406 Siphon tube <*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 49 Si39-406 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. The drain pipe should be as short as possible and free from airlocks. Gradient and Support b) Suspension bolts should be used to support long stretches of drain pipe in order to ensure that...
Page 50 Installation Si39-406 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 51 Si39-406 Installation 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 Drain Pipes and 2 units running at 3 HP is calculated as follows.
Page 52 Installation Si39-406 3.2.9 Drain Piping for Each Model Ceiling Mounted 1. Rig drain piping Cassette Type Lay pipes so as to ensure that drainage can occur with no problems. (FXFQ-M Multi- Employ a pipe with either the same diameter or with the diameter larger (excluding the raising section) than flow) that of the connecting pipe (PVC pipe, nominal diameter 25 mm, outside diameter 32 mm).
Page 53 Si39-406 Installation 2 After piping work is finished, check if drainage flows smoothly. Add approximately 67oz (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 54 Installation Si39-406 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 55 Si39-406 Installation • If converging multiple drain pipes, install according to the procedure shown below. T-joint converging drain pipes 3P086156-3A-9 Select converging drain pipes whose gauge is suitable for the operating capacity of the unit. (2) After piping work is finished, check drainage flows smoothly. •...
Page 56 Installation Si39-406 Ceiling Mounted <<Rig the drain pipe as shown below and take measures against Duct Type condensation. Improperly rigged piping could lead to leaks and (FXMQ-M) eventually wet furniture and belongings.>> <<Insulate the drain hose inside the buildings>> (1) Install the drain pipes. FXMQ30-48M •...
Page 57 Si39-406 Installation Wall Mounted (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 Type forming. (FXAQ-M) Watch out for the points in the figure 16 when performing drain work. Make sure the drain hose is at a downward Drain hose...
Page 58 Installation Si39-406 Floor Standing 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. Type (1) Carry out the drain piping (FXLQ-M) Connect the drain hose (1) using the attached hose and parts, as shown in the right drawing. Concealed Floor Standing Type (FXNQ-M)
Page 59 Si39-406 Installation 3.2.10 Electrical Work Control Wiring 1. Compatible types of wire Wiring Specifications Wiring Type Sheathed Wire (2 wire) Size AWG18-16 (0.75~1.25 mm²) Note: 1. Sheathed wire may be used for transmission wirings, but they do not comply with EMI (Electromagnetic lnterference) (EN55014).
Page 60 Installation Si39-406 Power Supply 1. Choosing a circuit breaker The power supply work must conform to local regulations. In Japan, the relevant regulations are the (Cabling of Main MITI ordinance determining technical standards for electrical equipment, and the Internal Wining Power Supply) Provisions.
Page 61 Si39-406 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 62 Installation Si39-406 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 of Noise and vibrations and operating noise from the main unit to the ducts or to the rest of the building.
Page 63 Si39-406 Installation 3. There is no danger of fire due to leakage of inflammable gas. 4. Ensure that water cannot cause any damage to the location in case it drips out the unit (e.g. in case of a blocked drain pipe). 5.
Page 64 Installation Si39-406 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.) 3.2.13 Inspecting and Handling the Unit...
Page 65 Si39-406 Installation 3.2.14 Installation of Outdoor Unit Operational steps Prepare foundation Install outdoor unit (V1150) 4" 4" 2" 6 1/2" 6 1/2" Model A (in.) B (in.) 12HP REYQ96MTJU 43 3/8 51 3/8 3D040102A Note: 1. The proportions of cement : sand : gravel for the concrete shall be 1 : 2 : 4, and ten reinforcement bars that their diameter are 6/16"-7/16", (approx.
Page 66 Installation Si39-406 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 13/16".
Page 67 Si39-406 Installation Note: When installing on a roof, make sure the roof floor is strong enough and be sure to water-proof all work. Make sure the area around the machine drains properly by setting up drainage grooves around the foundation. (Condensate water is sometimes discharged from the outdoor unit when it is running.) Block all gaps in the holes for passing out piping and wiring using sealing material (locally procured).
Page 68 Installation Si39-406 Caution Caution label 3P124617 4P124614 General Information...
Page 69: Test Operation
Si39-406 Test Operation 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 70 Test Operation Si39-406 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 71 Si39-406 Test Operation 4.1.4 Confirmation on normal operation • Conduct normal unit operation after the check operation has been completed. (When outdoor air temperature is 75ºF 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 72: Operation When Power Is Turned On
Test Operation Si39-406 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 73: Outdoor Unit Pc Board Layout
Si39-406 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 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 74: Field Setting
Test Operation Si39-406 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 75 Si39-406 Test Operation 4.4.1.2 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 time to long life 10,000 5,000...
Page 76 Test Operation Si39-406 4.4.1.3 Applicable Range of Field setting Ceiling mounted Ceiling mounted Ceiling mounted Wall mounted Floor standing Concealed Floor cassette type built-in type duct type type type standing type Multi flow FXFQ FXSQ FXMQ FXAQ FXLQ FXNQ Filter sign Ultra long life filter sign —...
Page 77 Si39-406 Test Operation 4.4.1.4 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 78 Test Operation Si39-406 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 Ceiling Height Setting Switch Setting Position Mode No. Setting Wall-mounted type : Standard 13(23)
Page 79 Si39-406 Test Operation 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 80 Test Operation Si39-406 4.4.1.5 Centralized Control Group No. Setting BRC1C 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 81 Si39-406 Test Operation 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 Controller Main 1-00...
Page 82 Test Operation Si39-406 4.4.1.6 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 83 Si39-406 Test Operation 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 the Operation Mode right edge of the table below. Example ON by remote OFF by remote...
Page 84 Test Operation Si39-406 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 85 Si39-406 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 indication as shown below.
Page 86 Test Operation Si39-406 a. “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 87 Si39-406 Test Operation b. “Setting mode 2” Setting item Description Operates by Standard compressor only when inverter compressor malfunctions. Temporary operation until the Push and hold the MODE button EMG (Emergency compressor is replaced. Since the comfortability is extremely (BS1) for 5 seconds and set to operation 1) deteriorated, immediately replace the compressor.
Page 88 Test Operation Si39-406 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 Low noise/demand...
Page 89 Si39-406 Test Operation Setting item display C/H selection Setting condition display MODE TEST Low noise Demand Setting item Master Slave ∗ Factory set 8777778 Level 1 (outdoor fan with 8 step or lower) 8777787 ∗ 25 Low noise setting Level 2 (outdoor fan with 7 step or lower) Level 3 (outdoor fan with 6 step or lower) 8777877 About 20:00...
Page 90 Test Operation Si39-406 c. Monitor mode LED display Setting item Data display Number of units for sequential To enter the monitor mode, push the 9 7 7 7 7 7 7 See below starting, and others MODE button (BS1) when in “Setting mode 1”.
Page 91 Si39-406 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 92 Test Operation Si39-406 4.4.2.2 Cool / Heat Mode Switching Set Cool/Heat Separately for Each BS Unit by Cool/Heat Selector. Set remote controller change over switch (SS1, SS2) as following: • When using COOL/HEAT selector, turn this switch to the BS side. NOTE: This setting must be completed before turning power supply ON.
Page 93 Si39-406 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 94 Test Operation Si39-406 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 95 Si39-406 Test Operation Setting of Demand Operation 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 compressor operating condition. A. When the demand operation is carried out by external instructions (with the use of the outdoor unit external control adapter).
Page 96 Test Operation Si39-406 Image of operation in the case of A Power consumption The power Rated power consumption consumption during 80 % of rated power consumption the demand level 1 Demand level 1 instructing Demand level 2 instructing Demand level 3 instructing 70 % of rated power consumption instructing can be 60 % of rated power consumption...
Page 97 Si39-406 Test Operation Detailed Setting Procedure of Low Noise Operation and Demand Control 1. Setting mode 1 (H1P off) In setting mode 2, push the BS1 (MODE button) one time. → Setting mode 2 is entered and H1P lights. During the setting mode 1 is displayed, “In low noise operation” and “In demand control” are displayed.
Page 98 Test Operation Si39-406 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 low noise (Factory...
Page 99 Si39-406 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 100 Test Operation Si39-406 [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 101 Si39-406 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 102: Caution For Refrigerant Leaks
Caution for Refrigerant Leaks Si39-406 5. Caution for Refrigerant Leaks Caution for Refrigerant Leaks (Points to note in connection with refrigerant leaks) 5.1.1 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 103 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. General Information...
Page 104: Hand Over To Customer
Hand Over to Customer Si39-406 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 105: Appendix
Si39-406 Appendix 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 106 Appendix Si39-406 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 107: Allowable Piping Length
Si39-406 Appendix Allowable Piping Length 7.2.1 Branch with refnet joint (Connection of 8 indoor units Heat pump system) Branch with refnet joint Outdoor unit REFNET joint ( Cooling only One outdoor unit installed BS unit Indoor unit Cool/Heat selection possible Between outdoor Maximum and indoor units...
Page 108 Appendix Si39-406 7.2.2 Branch with refnet joint and refnet header (Connection of 8 indoor units Heat pump system) Branch with refnet joint and refnet header REFNET joint ( Outdoor unit REFNET header One outdoor unit installed BS unit Indoor unit Cool/Heat selection possible Cooling only Maximum...
Page 109 Si39-406 Appendix 7.2.3 Branch with refnet header (Connection of 8 indoor units Heat pump system) Branch with refnet header Outdoor unit REFNET header One outdoor unit installed BS unit Indoor unit Cool/Heat selection possible Cooling only Between outdoor Maximum and indoor units allowable length •...
Page 110: Refrigerant Branch Kit Selection
Appendix Si39-406 Refrigerant branch kit selection Refrigerant branch kits can only be used with R410A. 7.3.1 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 REYQ 96M type...
Page 111 Si39-406 Appendix 7.3.2 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. Refrigerant branch kit name Indoor capacity index in case of 3 pipes In case of 2 pipes <...
Page 112: Pipe Size Selection
Appendix Si39-406 Pipe size selection Piping between outdoor unit and refrigerant branch kit Match to the size of the connection piping on the outdoor unit. (Unit:in.) Piping size (outer diameter) Outdoor unit capacity Gas pipe type Liquid pipe Suction Discharge φ3/8 φ7/8 φ3/4...
Page 113: How To Calculate The Additional Refrigerant To Be Charged
Si39-406 Appendix How to calculate the additional refrigerant to be charged Additional refrigerant to be charged R (lb.) R should be rounded off in units of 0.1lb.. Note: If a negative result is gotten for R from the formula at right, no refrigerant needs to be added. ...
Page 114 Appendix Si39-406 3P135887-1 General Information...
Page 115: Refnet Pipe Connections For Vrv R410A Series
Si39-406 Appendix REFNET Pipe Connections for VRV R410A Series 7.6.1 REFNET Joint (Branch Kit) KHRP26M22T Liquid Side Gas Side Insulation Insulation D3K03622A KHRP26M33T Liquid Side Gas Side Insulation Insulation D3K03623A General Information...
Page 116 Appendix Si39-406 KHRP25M22T Suction gas side Insulation Discharge gas side Liquid side Insulation Insulation D3K03626A KHRP25M33T Suction gas side Insulation Liquid side Discharge gas side Insulation Insulation D3K03627B General Information...
Page 117 Si39-406 Appendix 7.6.2 REFNET Header (Branch Kit) KHRP26M22H Gas Side Liquid Side Insulation Insulation D3K03629B KHRP26M33H Gas Side Liquid Side Insulation Insulation D3K03630B KHRP25M33H Suction gas side Insulation Insulation Liquid side Discharge gas side Insulation D3K03633B General Information...
Page 118 Appendix Si39-406 1. REFNET Joints For gas and liquid branch pipes Make sure that all branch pipes are fitted such that they branch either horizontally or vertically. When the size of the selected field piping is different from that of branch pipe then the connecting section should be cut with a pipe cutter as shown in the figure below.
Page 119 Si39-406 Appendix 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. When the size of the selected field piping is different from that of branch pipe then the connecting section should be cut with a pipe cutter as shown in the figure below.
Page 120: Vrv Inspection Sheet
Appendix Si39-406 VRV Inspection Sheet Inspection date: Delivery date: Transfer date: Owner System name Outdoor units Installation location Model Unit No. Outdoor unit system name BS Unit and Indoor Unit BS Unit Indoor Unit Cool/Heat Installation Model Unit No. Installation Model Unit No.
Page 121 Si39-406 Appendix 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 122 Appendix Si39-406 Decision Inspection item Inspection method Standard (guideline) Measurement values BS 1 G NG BS 6 G NG Gas Leak BS 2 G NG BS 7 G NG Refrigerant detector or No leaks BS 3 G NG BS 8 G NG system visual...
Page 123 Si39-406 Appendix 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 124: Piping System Diagrams
Appendix Si39-406 Piping System Diagrams 7.8.1 Outdoor Unit REYQ96MTJU 4D045329 General Information...
Page 125 Si39-406 Appendix 7.8.2 Indoor Unit FXFQ, FXSQ, FXMQ, FXAQ, FXLQ, FXNQ Gas piping connection port Heat exchanger Flare connection : φ5/8 or less Attached piping : Above φ3/4 Liquid piping connection port (Flare connection) Electronic Filter Filter expansion valve DU220-602D R1T : Thermistor for suction air temperature R2T : Thermistor for liquid line temperature R3T : Thermistor for gas line temperature...
Page 126 Appendix Si39-406 7.8.3 BS Unit BSVQ36MVJ BSVQ60MVJ 4D045338 General Information...
Page 127: Wiring Diagrams
Si39-406 Appendix Wiring Diagrams 7.9.1 Outdoor Unit REYQ96MTJU General Information...
Page 128 Appendix Si39-406 7.9.2 Field Wiring REYQ96MTJU General Information...
Page 129: Bad Examples And Good Examples In Installation
Si39-406 Appendix 7.10 Bad Examples and Good Examples in Installation 7.10.1 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 130 Appendix Si39-406 7.10.2 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 131 Si39-406 Appendix 7.10.3 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 drain leakage.
Page 132 Appendix Si39-406 7.10.4 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 133 Si39-406 Appendix 7.10.5 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 134 Appendix Si39-406 7.10.6 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 135 Si39-406 Appendix 7.10.7 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 136 Appendix Si39-406 Main Points When communications with the central remote controller are down, “00” cannot be selected in the field setting mode. Activate power to the central remote controller, unified ON/OFF controller and indoor unit before setting the centralized control group number. 7.10.9 Example 9: “88 88 88 88”...
Page 137: Part 2 Installation Manual Reyq96Mtju
Si39-406 Part 2 Part 2 Part 2 Part 2 Installation Manual Installation Manual Installation Manual Installation Manual REYQ96MTJU REYQ96MTJU REYQ96MTJU REYQ96MTJU 1. Introduction ..................... 136 1.1 Combination ..................... 136 1.2 Standard Operation Limit ................. 136 1.3 Standard Supplied Accessories ............... 137 1.4 Option Accessory ..................
Page 138 Si39-406 Please read these “SAFETY CONSIDERATIONS” carefully before installing air conditioning equipment and be sure to install it correctly. After completing the installation, make sure that the unit operates properly during the start-up operation. Please instruct the customer on how to operate the unit and keep it maintained. Also, inform customers that they should store this installation manual along with the operation manual for future reference.
Page 139 Do not reconstruct or change the settings of the protection devices. If the pressure switch, thermal switch, or other protection device is shorted and operated forcibly, or parts other than those specified by Daikin are used, fire or explosion may result. Do not touch the switch with wet fingers.
Page 140 Si39-406 Do not touch the refrigerant pipes during and immediately after operation. During and immediately after operation, the refrigerant pipes are may be hot and may be cold, depending on the condition of the refrigerant flowing through the refrigerant piping, compressor, and other refrigerant cycle parts.
Page 141 Si39-406 CAUTION Do not allow children to mount on the outdoor unit, or avoid placing any object on it. Falling or tumble may result in injury. Safety Precaution The PCI Data Station 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 142: Introduction
This installation manual concerns VRV inverters of the Daikin REYQ-M series. These units are designed for outdoor installation and used for cooling and heatpump applications. The REYQ-M units can be combined with Daikin VRV series indoor units for air conditioning purposes.
Page 143: Standard Supplied Accessories
Si39-406 Introduction Standard Supplied Accessories Suction gas line piping Name Clamp (1) Clamp (2) Clamp (3) attached to unit (1) Quantity 9 pcs. 2 pcs. 1 pc. 1 pc. Shape Large Small Suction gas line Suction gas line Discharge gas line Name piping attached to piping attached to...
Page 144: Option Accessory
Introduction Si39-406 Option Accessory To install the outdoor unit, the following optional parts are also required. Refrigerant branching kit (For R410A only: Always use an appropriate kit dedicated for your system.) for 3 pipes REFNET header — KHRP25M33H REFNET joint KHRP25M22T KHRP25M33T for 2 pipes...
Page 145: Electrical Specifications (1)
Si39-406 Introduction Electrical Specifications Model REYQ96MTJU Phase — Frequency Power supply Voltage ± Voltage torerance Recommended fuses Phase — Frequency Compressor Voltage Nominal running current 10.1 + 13.1 Voltage Control and Type fan motor Nominal running current Installation Manual REYQ96MTJU...
Page 146: Main Components
Main Components Si39-406 2. Main Components For main components and function of the main components, refer to the Engineering Data Book. Installation Manual REYQ96MTJU...
Page 147: Selection Of Location
Si39-406 Selection of Location 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 148 Selection of Location Si39-406 2. In heavy snowfall areas, select an installation site where snow will not affect operation of the unit. WARNING 1. The refrigerant R410A itself is nontoxic, nonflammable and safe. If the refrigerant should leak however, its concentration may exceed the allowable limit depending on room size. Due to this it could be necessary to take measures against leakage.
Page 149: Inspecting And Handling The Unit
Si39-406 Inspecting and Handling the Unit 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 150: Unpacking And Placing The Unit
Unpacking and Placing the Unit Si39-406 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 13/16".
Page 151 Si39-406 Unpacking and Placing the Unit CAUTION When installing on a roof, make sure the roof floor is strong enough and be sure to water-proof all work. Make sure the area around the machine drains properly by setting up drainage grooves around the foundation.
Page 152: Refrigerant Piping
Refrigerant Piping Si39-406 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 153 Si39-406 Refrigerant Piping [One outdoor unit installed] Front connection: Remove the shutoff valve cover to connect 1. Front connection: 2. Remove the shutoff valve cover to connect. ( 1 ) 2 3. Suction gas side accessory pipe (1) (2) (3) 4.
Page 154 Refrigerant Piping Si39-406 Mount the REFNET joint so that it branches either horizontally or vertically. 1. (Horizontal connections) A-arrow diagram 2. (Up to ±30 or vertically.) 3. (Horizontal connections) B-arrow diagram Mount the REFNET header so that it branches horizontally. 4.
Page 155 Si39-406 Refrigerant Piping Precautions when selecting branch piping. If the piping between the outdoor unit and the first refrigerant branching kit is 295ft. or longer, be sure to enlarge the main pipe in the liquid-side piping. Do not enlarge the main pipe in the discharge-side and suctionside piping. Depending on the length of the refrigerant piping, the power may drop, but even in such cases it is ok to enlarge the main pipe.
Page 156 Refrigerant Piping Si39-406 Installation Manual REYQ96MTJU...
Page 157: Example Of Connection
Si39-406 Refrigerant Piping Example of Connection Branch with refnet joint Branch with refnet joint and refnet header Branch with refnet header indoor unit refnet joint refnet header Outdoor unit REFNET joint ( Outdoor unit REFNET joint ( Outdoor unit REFNET header (3 pipes) (2 pipes) Cooling only...
Page 158 Refrigerant Piping Si39-406 Installation Manual REYQ96MTJU...
Page 159: Leak Test And Vacuum Drying
Si39-406 Refrigerant Piping Leak Test and 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 ensure sufficient pressure resistance, always use the special tools dedicated for R410A.
Page 160 Refrigerant Piping Si39-406 Opening shutoff 1. Remove the cap and turn the valve counterclockwise with the hexagon wrench. 2. Turn it until the shaft stops. valve 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 161 Si39-406 Refrigerant Piping FLARE SHAPE and FLARENUT TIGHTENING TORQUE <Precautions when connecting pipes> See the following table for flare part machining dimensions. When connecting the flare nuts, apply refrigerant oil to the inside and outside of the flares and turn them three or four times at first. (Use ester oil or ether oil.) See the following table for tightening torque.
Page 162: Pipe Insulation
Refrigerant Piping Si39-406 Pipe Insulation After finishing the leak test and vacuum drying, the piping must be insulated. Take into account the following points: Make sure to insulate the connection piping and refrigerant branch kits entirely. Be sure to insulate the liquid-side, suction gas-side and discharge gas-side piping for the inter- unit piping and the refrigerant branch kits.
Page 163 Si39-406 Refrigerant Piping How to fill a tank with a siphon attached. Fill with the tank upright. (There is a siphon tube inside, so there is no need to turn the tank upside-down.) Other ways of filling the tank Fill with the tank upside-down. Determine the amount of refrigerant to be added by referring to the table, write it down on the included “Added Refrigerant”...
Page 164 Refrigerant Piping Si39-406 [Additional refrigerant charge procedure] To learn the system settings for additional refrigerant charging, refer to the [Service Precaution] label attached on the back of the electric box lid in the outdoor unit. 1. Fully open the suction gas line and discharge gas line shutoff valves (liquid line shutoff valve and valve A and valve B above must be left fully closed) and start the additional refrigerant charge operation.
Page 165: Field Wiring
Si39-406 Refrigerant Piping 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 166: General
Refrigerant Piping Si39-406 General Make sure to connect the power supply wire to the power supply terminal block and to clamp it as shown in figure 14, chapter “Field line connection”. As this unit is equipped with an inverter, installing a phase advancing capacitor not only will deteriorate power factor improvement effect, but also may cause capacitor abnormal heating accident due to high-frequency waves.
Page 167: Examples
Si39-406 Refrigerant Piping Examples System example 1. Field power supply 2. Main switch 3. Earth leak detector 4. Fuse 5. Cool / heat selector 6. Remote controller 7. Outdoor unit 8. BS unit 9. Indoor unit power supply wiring (sheathed cable) transmission wiring (sheathed cable) Field line...
Page 168 Refrigerant Piping Si39-406 1. Retain with accessory clamp (3). 2. Electric wiring 3. Wiring between units 4. Retain to the electric parts box with the accessory clamps (1). 5. When routing the remote control cord and inter-unit wiring, secure clearance of 5 " or more from the power wiring.
Page 169 Si39-406 Refrigerant Piping <Precautions when connecting the ground> When pulling the ground wire out, wire it so that it comes through the cut out section of the cup washer. (An improper ground connection may prevent a good ground from being achieved.) Cup washer Round pressure terminal Cut out section...
Page 170 Refrigerant Piping Si39-406 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 Be sure to let the power line and the transmission line pass through a conduit hole. line and Pick the power line from the upper hole on the front position of the main unit.
Page 171 Si39-406 Refrigerant Piping Never connect 200 V to the terminal block of the interconnecting wiring. Doing so will break the entire system. The wiring from the indoor units must be connected to the F1/F2 (In-Out) terminals on the PC board in the outdoor unit. For the above wiring, always use vinyl cords with AWG 18-16 sheath or cables (2 core wires).
Page 172: Before Operation
Refrigerant Piping Si39-406 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. After the installation, check the following before switching on the circuit breaker: 1.
Page 173: Test Run
Si39-406 Refrigerant Piping 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 When running the unit for the first time after installation, be sure to perform a test run following these steps.
Page 174 Refrigerant Piping Si39-406 <Cautions for check operation> If the system is started within about 12 minutes after the outdoor/ indoor units are turned ON, the compressor will not run and H2P lights up. Before starting an operation, always verify that the LED display shows the contents of the table in “8-2 Test run 2.”.
Page 175: Caution For Refrigerant Leaks
Si39-406 Refrigerant Piping 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 176 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. Installation Manual REYQ96MTJU...
Page 177: Part 3 Installation Manual Bs Unit
Si39-406 Part 3 Part 3 Part 3 Part 3 Installation Manual Installation Manual Installation Manual Installation Manual BS Unit BS Unit BS Unit BS Unit 1. Safety Considerations ................172 2. Before Installation ................... 175 2.1 Caution Concerning New Refrigerant Series ........... 175 2.2 Precautions ....................
Page 178: Safety Considerations
Safety Considerations Si39-406 1. Safety Considerations Please read these “SAFETY CONSIDERATIONS” carefully before installing air conditioning equipment and be sure to install it correctly. After completing the installation, make sure that the unit operates properly during the start-up operation. Please instruct the customer on how to operate the unit and keep it maintained. Also, inform customers that they should store this installation manual along with the operation manual for future reference.
Page 179 Si39-406 Safety Considerations When wiring the power supply and connecting the remote controller wiring and transmission wiring, position the wires so that the electric parts box lid can be securely fastened. Improper positioning of the electric parts box lid may result in electric shocks, fire or the terminals overheating.
Page 180 Safety Considerations Si39-406 NOTE: Install the indoor and outdoor units, power supply wiring and connecting wires at least 3.5ft. away from televisions or radios in order to prevent image interference or noise. (Depending on the radio waves, a distance of 3.5ft. may not be sufficient enough to eliminate the noise.) Remote controller (wireless kit) transmitting distance can result shorter than expected in rooms with electronic fluorescent lamps.
Page 181: Before Installation
Si39-406 Before Installation 2. Before Installation Caution Concerning New Refrigerant Series Since R410A is a mixed refrigerant, the required additional refrigerant must be charged in its liquid state. (If the refrigerant is charged in a state of gas, its composition changes and the system will not work properly.) The indoor/outdoor unit is for R410A.
Page 182: Accessories
Before Installation Si39-406 Accessories Check the following accessories are included with your unit. <BSVQ36 · 60MVJU> Name 1) Attached pipe 2) Clamp 3) Insulation for fitting Quantity 2 pcs. 1 pc. 2 pcs. 17 pcs . 2 pcs. 1 pc. 2 pcs.
Page 183: Combination
Si39-406 Before Installation Combination For series of applicable indoor units, refer to the or other literature. Select the BS unit to fit the total capacity sum of the indoor units to be connected downstream. To calculate the total capacity of the indoor units, use the figure A of the table below. Model Total capacity sum of all downstreem indoor units BSVQ36MVJU...
Page 184: Selecting Installation Site
Selecting Installation Site Si39-406 3. Selecting Installation Site NOTE: Do not throw away any of the accessories until installation is complete. Hold the unit by the hunger brackets (4) when opening the box and moving it, and do not lift it holding on to any other part especially the refrigerant piping.
Page 185: Preparations Before Installation
Si39-406 Preparations Before Installation 4. Preparations Before Installation (1) Position of suspension bolts on the BS unit. <BSVQ36 · 60MVJU> Spacing between Spacing between suspension bolts suspension bolts 13 3/4 6 11/16 (2) Install suspension bolts. • Use M8-M10 suspension bolts. •...
Page 186: Bs Unit Installation
BS Unit Installation Si39-406 5. BS Unit Installation (1) Attach the hunger brackets to the suspension bolts. Washer Be sure to sandwich the hunger brackets between nuts and washers, and securely fix it. BS unit proper Hunger bracket Suspension bolt CAUTION The BS unit has a top and a bottom, so install it so that the diagonal lines in the figure next page are where the top is.
Page 187: Refrigerant Piping Work
BS unit using the flare or flange connections. Notes 1. For details on nitrogen replacement, see the “VRV Installation Manual” (available at any Daikin dealer). 2. When feeding nitrogen into the pipes while doing the brazing, the pressure-reducting valve should be set to 2.9psi.
Page 188 Refrigerant Piping Work Si39-406 For locally procured insulation, be sure to insulate all the way to the pipe connections inside the machine. Exposed piping may cause condensation to form or burns on contact. Use the following material specification for refrigerant piping: (1) construction material: Phosphoric acid deoxidized seamless copper for refrigerant.
Page 189: In Case Of Connecting Only One Indoor Unit
Si39-406 Refrigerant Piping Work In Case of Connecting Only One Indoor Unit Select pipe size according to the Table 4 Match the pipe size to the indoor unit’s piping connection size. <Upstream> <Downstream> Liquid piping Gas piping INDOOR To outdoor unit Suction gas piping UNIT BS unit...
Page 190: Piping Connection
Refrigerant Piping Work Si39-406 Piping Connection Flare nut Flare nut (Use the included items.) (Use the included items.) Gas piping Suction gas piping (Field supply) (Field supply) Liquid piping Discharge gas piping BS unit (Field supply) (Field suuply) Liquid piping (Field supply) If the total capacity of the Q36-type indoor units downstream is less than 24 Attached pipe 1)-1...
Page 191: Electric Wiring Work
Si39-406 Electric Wiring Work Electric Wiring Work General Instructions All field supplied parts and materials, electric works must conform to local codes. Use copper wire only. Follow the “WIRING DIAGRAM” attached to the unit body to wire the outdoor unit and indoor units.
Page 192: Specifications For Field Supplied Fuses And Wire
Electric Wiring Work Si39-406 Specifications for Field Supplied Fuses and Wire Power supply wiring Transmission wiring Model Field fuse Size Wire Size BSVQ36M Size must comply Sheathed wire AWG18-16 with local codes. (2 wire) (NOTE 2) BSVQ60M NOTE: 1. Select the particular size of electric wire for power line in accordance with the standards of the given nation and region.
Page 193 Si39-406 Electric Wiring Work Clamp power wiring and the grounding wire together with the Cup washer included clamp. When clamping wiring, use the included clamping material 2) to Round pressure terminal prevent outside pressure being exerted on the wiring connections and clamp firmly. Cut out section When doing the wiring, make sure the wiring is neat and does not cause the electric parts box lid to stick up, then close the...
Page 194 Electric Wiring Work Si39-406 EXAMPLE OF TRANSMISSION LINE CONNECTION Example of connecting transmission wiring. Connect the transmission wirings as shown in the Fig. 1. In case of the indoor unit connect as the cool-only unit, it wires the terminal of the last BS unit. OUT/D.BS F1 F2 F1 F2...
Page 195: Initial Setting
Si39-406 Electric Wiring Work Initial Setting After finishing wiring work, set the followings if necessary. 1. COOL/HEAT temperature difference setting switch (Set indoor unit remote controller to field setting mode.) • Used to change the temperature difference upon occurence of which to start cooling and heating in the automatic COOL/HEAT mode.
Page 196: Test Operation
Test Operation Si39-406 8. Test Operation Refer to the installation manual of the outdoor unit. • The operation lamp of the remote controller connected to the indoor unit will flash when an error occurs. Check the error code on the liquid crystal display to identify the point of trouble. An explanation of error codes and the corresponding trouble is provided in “CAUTION FOR SERVICING”...
Page 197: Part 4 Operation Manual
Si39-406 Part 4 Part 4 Part 4 Part 4 Operation Manual Operation Manual Operation Manual Operation Manual 1. Safety Considerations .................193 2. What to Do Before Operation..............197 3. Remote Controller and Changeover Switch: Name and Function of Each Switch and Display................198 4.
Page 198 Si39-406 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 199: Safety Considerations
Si39-406 Safety Considerations 1. Safety Considerations Please read these “SAFETY CONSIDERATIONS” carefully before installing air conditioning equipment and be sure to install it correctly. After completing the installation, make sure that the unit operates properly during the start-up operation. Please instruct the customer on how to operate the unit and keep it maintained. Also, inform customers that they should store this operation manual along with the installation manual for future reference.
Page 200 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 201 Si39-406 Safety Considerations Do not operate the air conditioner with a wet hand. An electric shock may result. Do not allow a child to mount on the unit or avoid placing any object on it. Falling or tumbling may result in injury. Never expose little children, plants or animals directly to the air flow.
Page 202 Safety Considerations Si39-406 Never touch the air outlet or the horizontal blades while the swing flap is in operation. Fingers may become caught or the unit may break down. Never press the button of the remote controller with a hard, pointed object. The remote controller may be damaged.
Page 203: 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.
Page 204: Remote Controller And Changeover Switch: Name And Function Of Each Switch And Display
Remote Controller and Changeover Switch: Name and Function of Each Switch and Display Si39-406 3. Remote Controller and Changeover Switch: Name and Function of Each Switch and Display 1. On/off button Press the button and the system will start. Press the button again and the system will stop. 2.
Page 205 Si39-406 Remote Controller and Changeover Switch: Name and Function of Each Switch and Display 13.Display “ ” (defrost/hot start) Refer to the chapter “Operation procedure - Explanation of heating operation.” 14.Timer mode start/stop button Refer to the chapter “Operation procedure - Programming start and stop of the system with timer.”...
Page 206: Operation Range
Operation Range Si39-406 4. Operation Range Use the system in the following temperature and humidity ranges for safe and effective operation. COOLING HEATING outdoor temperature 23°~110°FDB 5°~60°FWB indoor temperature 57°~77°FWB 59°~80°FDB ≤ 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 207: Operation Procedure
Si39-406 Operation Procedure 5. 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 208 Operation Procedure Si39-406 For systems with cool/heat changeover remote control switch Select operation mode with the cool/heat changeover remote control switch as follows: “ ” “ ” Cooling operation “ ” “ ” Heating operation “ ” “ ” Fan only operation Press the on/off button.
Page 209: Program Dry Operation
Si39-406 Operation Procedure Explanation of heating operation Defrost operation In heating operation, freezing of the outdoor unit coil increases. Heating capability decreases and the system goes into defrost operation. The indoor unit fan stops and the remote controller displays “ ”.
Page 210 Operation Procedure Si39-406 For systems with cool/heat changeover remote control switch Select cooling operation mode with the cool/heat changeover remote control switch. Press the operation mode selector button several times and select “ ” (program dry operation). Press the on/off button The operation lamp lights up and the system starts operation.
Page 211: Adjusting The Air Flow Direction
” and desired position “ ”. Note: The movable limit of the flap is changeable. Contact your Daikin dealer for details. Avoid operating in the horizontal direction “ ”. It may cause dew or dust to settle on the ceiling.
Page 212: Programming Start And Stop Of The System With Timer
Operation Procedure Si39-406 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 213: Setting The Master Remote Controller
Si39-406 Operation Procedure Setting the Master Remote Controller When the system is installed as shown in figure 14 and 15, 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 When one BS unit is connected with several indoor units.
Page 214: 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. Note: Contact your Daikin dealer in case of changing the combination or setting of group control and two remote controller control systems. Operation Manual...
Page 215: Optimum Operation
Si39-406 Optimum Operation 6. 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 216: 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 217: 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 218: Dust Comes Out Of The Unit
Following Symptoms are not Air Conditioner Troubles Si39-406 Dust comes out of the Unit When the unit is used for the first time in a long time. This is because dust has gotten into the unit. The Units can Give off Odours The unit can absorb the smell of rooms, furniture, cigarettes, etc., and then emit it again.
Page 219: 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 220 Troubleshooting Si39-406 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 221: Part 5 Precautions For New Refrigerant (R401A)
Si39-406 Part 5 Part 5 Part 5 Part 5 Precautions for new Precautions for new Precautions for new Precautions for new Refrigerant (R401A) Refrigerant (R401A) Refrigerant (R401A) Refrigerant (R401A) 1. Precautions for New Refrigerant (R410A)..........216 1.1 Outline ...................... 216 1.2 Refrigerant Cylinders................
Page 222: Precautions For New Refrigerant (R410A)
Precautions for New Refrigerant (R410A) Si39-406 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 223: Refrigerant Cylinders
Si39-406 Precautions for New Refrigerant (R410A) 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 224: Service Tools
Precautions for New Refrigerant (R410A) Si39-406 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 225 Si39-406 Precautions for New Refrigerant (R410A) 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 226 Precautions for New Refrigerant (R410A) Si39-406 2. Torque wrench Specifications 2 Dimension B Anytime 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 227 Si39-406 Precautions for New Refrigerant (R410A) 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 228 Precautions for New Refrigerant (R410A) Si39-406 2 1/4" → 5/16" (2min → 2.5min) 2 No oil is used in pressure test of gauges. → For prevention of contamination 2 Temperature scale indicates the relationship between pressure and temperature in gas saturated state.
Page 229 Si39-406 Precautions for New Refrigerant (R410A) 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 230 Precautions for New Refrigerant (R410A) Si39-406 Precautions for New Refrigerant (R410)
Page 231: Index
Si39-406 Index Index Index Index Symbols Emergency operation (STD compressor is inhibited to operate.) ..82 “88” cannot be cleared from the central remote Example of Connection..........151 controller ............130 Excessive noise due to incorrect angling of REFNET joints..........127 External Appearance ...........3 Additional Charge of Refrigerant.......
Page 232 Si39-406 Piping System Diagrams VRV Inspection Sheet..........114 BS Unit ............. 120 Indoor Unit ............119 Outdoor Unit ............. 118 Wiring Diagrams ............121 Power Supply ............54 Precautions for New Refrigerant (R410A)....216 Pressure down despite absence of leaks during air tight test ............126 Program Dry Operation ...........
Page 233 Si39-406 Drawings & Flow Charts Drawings & Flow Charts Drawings & Flow Charts Drawings & Flow Charts Symbols Change of dimension B ...........220 Charge hose for R410A ...........222 “88” cannot be cleared from the central remote Charge mouthpiece ..........223 controller ............130 charging additional refrigerant .........157 Charging cylinder.............222 CHECK OPERATION FUNCTION ......95...
Page 234 Si39-406 Electrical Work a PCB for remote control, multiple core cable must laying power wiring ..........162 not be used ..........53 Leak Test and Vacuum Drying ........153 Choosing a circuit breaker ........54 Leak tester ...............221 Earthing .............. 55 When cable more than 1.25 mm² is used ... 53 Example for the Whole System.......
Page 235 Si39-406 Refrigerant Piping ........... 146 passing piping out through the front....61 The unit must be installed on a solid longitudinal foundation ..........60 Selecting Installation Site ........178 Selection of Location..........141 AM broadcasting......... 57 Vacuum Drying ............34 servicing and the minimum space ....56 Vacuum Drying Procedure.........38 Service Space ............
Page 236 375 Park Avenue, Suite 3308 New York, N.Y.10152 info@daikinac.com www.daikinac.com...

Daikin VRV REYQ96MTJU Design, Installation & Testing Instruction

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