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VRV IV
MODEL
REYQ72TATJ*
REYQ96TATJ*
REYQ120TATJ*
REYQ144TATJ*
REYQ168TATJ*
REYQ192TATJ*
REYQ216TATJ*
REYQ240TATJ*
REYQ264TATJ*
REYQ288TATJ*
REYQ312TATJ*
REYQ336TATJ*
REYQ360TATJ*
REYQ384TATJ*
REYQ408TATJ*
REYQ432TATJ*
REYQ456TATJ*
Please visit http://www.daikinac.com/content/resources/manuals for the most current version of installation
instructions. In the event of conflicting information, the online installation instruction is to be used.
Veuillez visiter http://www.daikinac.com/content/resources/manuals pour obtenir la version la plus récente des
instructions d'installation. En cas de conflit d'informations, les instructions d'installation en ligne doivent être
utilisées.
Visite http://www.daikinac.com/content/resources/manuals para obtener la versión más actualizada de las
instrucciones de instalación. En caso de información conflictiva, se debe utilizar la instrucción de instalación en
línea.
3P362438-5N
INSTALLATION MANUAL
System air conditioner
REYQ72TAYD*
REYQ96TAYD*
REYQ120TAYD*
REYQ144TAYD*
REYQ168TAYD*
REYQ192TAYD*
REYQ216TAYD*
REYQ240TAYD*
REYQ264TAYD*
REYQ288TAYD*
REYQ312TAYD*
REYQ336TAYD*
REYQ360TAYD*
REYQ384TAYD*
REYQ408TAYD*
REYQ432TAYD*
REYQ456TAYD*
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Related Manuals for Daikin VRV IV REYQ72TATJ Series
Summary of Contents for Daikin VRV IV REYQ72TATJ Series
- Page 1 INSTALLATION MANUAL VRV IV System air conditioner English MODEL REYQ72TATJ* REYQ72TAYD* REYQ96TATJ* REYQ96TAYD* REYQ120TATJ* REYQ120TAYD* Français REYQ144TATJ* REYQ144TAYD* REYQ168TATJ* REYQ168TAYD* REYQ192TATJ* REYQ192TAYD* REYQ216TATJ* REYQ216TAYD* Español REYQ240TATJ* REYQ240TAYD* REYQ264TATJ* REYQ264TAYD* REYQ288TATJ* REYQ288TAYD* REYQ312TATJ* REYQ312TAYD* REYQ336TATJ* REYQ336TAYD* REYQ360TATJ* REYQ360TAYD* REYQ384TATJ* REYQ384TAYD* REYQ408TATJ* REYQ408TAYD* REYQ432TATJ* REYQ432TAYD*...
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Page 2: Safety Considerations
• After completing the installation work, check that the re- specified by Daikin are used, fire or explosion could result. frigerant gas does not leak throughout the system. • Do not install unit in an area where flammable materials are present due to risk of explosions that will result in seri- ous injury or death. -
Page 3: Codes And Regulations
Make sure to use a DAIKIN specified checker while measur- cent lamps (inverter or rapid start types). Install the indoor ing sub cooling. Do not use the check valve or the other port unit far away from fluorescent lamps as much as possible. -
Page 4: Table Of Contents
REYQ72TATJ* REYQ288TATJ* REYQ72TAYD* REYQ288TAYD* REYQ96TATJ* REYQ312TATJ* REYQ96TAYD* REYQ312TAYD* REYQ120TATJ* REYQ336TATJ* REYQ120TAYD* REYQ336TAYD* REYQ144TATJ* REYQ360TATJ* REYQ144TAYD* REYQ360TAYD* VRV IV System air conditioner REYQ168TATJ* REYQ384TATJ* REYQ168TAYD* REYQ384TAYD* Installation Manual REYQ192TATJ* REYQ408TATJ* REYQ192TAYD* REYQ408TAYD* REYQ216TATJ* REYQ432TATJ* REYQ216TAYD* REYQ432TAYD* REYQ240TATJ* REYQ456TATJ* REYQ240TAYD* REYQ456TAYD* REYQ264TATJ* REYQ264TAYD* CONTENTS Safety considerations . -
Page 5: Introduction
1 . Introduction REYQ72TATJ*/TAYD* 1 . 1 . General information REYQ96TATJ*/TAYD* This installation manual concerns the VRV IV REYQ-T series, full REYQ120TATJ*/TAYD* inverter driven, heat pump system. REYQ144TATJ*/TAYD* REYQ168TATJ*/TAYD* REYQ192TATJ*/TAYD* REYQ216TATJ*/TAYD* REYQ240TATJ*/TAYD* REYQ264TATJ*/TAYD* REYQ288TATJ*/TAYD* REYQ312TATJ*/TAYD* REYQ336TATJ*/TAYD* Outdoor unit REYQ360TATJ*/TAYD* Refrigerant piping REYQ384TATJ*/TAYD* Branch Selector unit... -
Page 6: Indoor Capacity Range
999482P3 is required which is a dedicated cable to com- Accessories assy (piping) municate with the outdoor unit. The software for the user interface program can be obtained from your local Daikin sales office. INFORMATION Refer to the technical engineering data for the latest option names. -
Page 7: Technical And Electrical Specifications
Once the front panel open, the control box can be accessed by remov- • Select the location of the unit in such a way that the sound generat- ing the control box cover as follows. ed by the unit does not disturb anyone, and the location is selected according the applicable legislation. -
Page 8: Weather Related Precautions
Construct a pedestal. • When installing in areas where air contains high levels of salt such as near the ocean; Contact your Daikin sales representative for NOTE additional precautions. When operating the unit in a low outdoor ambient temperature with high humidity conditions, make sure to take precautions to keep the 4 .3 . -
Page 9: Service Space
Unit: in. (mm) A+B+C+D REYQ72T REYQ96-168T a≥3/8 (10) a≥2 (50) a≥7-7/8 (200) b≥11-3/4 (300) b≥3-7/8 (100) b≥11-3/4 (300) Foundation bolt holes c≥3/8 (10) c≥2 (50) 9/16 (15) × 7/8 (22.5) oblong holes × 4 d≥19-5/8 (500) d≥19-5/8 (500) Pitch of foundation bolt holes a≥3/8 (10) a≥2 (50) a≥7-7/8 (200) -
Page 10: Inspecting, Handling And Unpacking
6 . Inspecting, handling and unpacking the unit 6 .4 . Installing the unit Make sure the unit is installed level on a sufficiently strong base to 6 . 1 . Inspection prevent vibration and noise. At delivery, the unit must be checked and any damage must be re- NOTE ported immediately to the carrier’s claims agent. -
Page 11: Method For Removing Shipping Plates
• Fasten the unit in place using 4 foundation bolts 7/16 in. (M12). It is best to screw in the founda- tion bolts until their length remains 13/16 in. (20 mm) above the foundation surface. A=13/16 in. (20 mm) Bolt NOTE •... -
Page 12: Refrigerant Pipe Size And Allowable Pipe
• Use only separately sold items selected specifically according to NOTE the outdoor unit multi connection piping kit, the refrigerant branch kit Failure to follow the above instructions could lead to premature com- selection in the 7.4. Selection of refrigerant branch kits on page 10. ponent failure. -
Page 13: Selection Of Refrigerant Branch Kits
7 .3 .2 . Piping between refrigerant branch kits or refrigerant • For REFNET joints other than the first branch (example REFNET branch kits and Branch Selector units: D joint b - see 7.3. Selection of piping size), select the proper branch kit model based on the total capacity of all indoor units connected Choose from the following table in accordance with the indoor unit after the refrigerant branch. -
Page 14: System Piping (Length) Limitations
7 .5 . System piping (length) limitations <Example of refrigerant piping (8 indoor units are connected)> Outdoor unit : Branch Selector unit (multi) : Indoor units (cooling/heating First outdoor unit Outdoor unit selectable) : Branch Selector unit (single) multi connection : Indoor unit (cooling only) piping kit (*1) (*3) REFNET joint (A-E) (*1) “... - Page 15 Actual piping length from the outdoor unit (*4) to the indoor unit: ≤540 ft. (165 m) Actual piping length (Example) 4 : a+d+g+i≤540 ft. (165 m), 7 : a+b+c+ +m+o≤540 ft. (165 m), 8 : a+b+c+p≤540 ft. (165 m) Equivalent piping length from the outdoor unit (*4) to the indoor unit: ≤623 ft. From outdoor unit (*4) (190 m) (*6) to indoor unit...
- Page 16 (*8) When conditions listed in the table below are all satisfied, the allowable length restrictions after branch is ≤295 ft. (90 m). Example: Only the allowable length after branch for the indoor unit 9 exceeds 130 ft. (40 m) in the Necessary conditions figure in the lower right 1.
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Page 17: Precautions On Refrigerant Piping
8 . Precautions on refrigerant piping • Do not allow anything other than the designated refrigerant to get mixed into the refrigerant cycle, such as air, nitrogen, etc. If any refrigerant gas leaks while working on the unit, ventilate the room thoroughly right away. - Page 18 Use the following procedure to remove the pinched piping: WARNING 1 Remove the valve cover and make sure that the stop valves are When brazing at the proximity of the stop valves, be sure to protect fully closed. the stop valves mounting plate with a protective plate to prevent from 1 Service port and service port contacting with the burner flame.
- Page 19 Side (bottom) connection • Only proceed with piping work after considering the limitations on Remove the knockout hole on the bottom frame and lead out the installing listed here and in the chapter 8.2. Connecting the refriger- piping from the bottom frame. ant piping on page 14 always referring to the installation manual delivered with the kit.
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Page 20: Guidelines For Handling Stop Valve
• If the piping length between the outdoor units exceeds 6.5 ft. (2 m), 2 Installation of the multi connection piping kit. create a rise of 8 in. (200 mm) or more in the suction gas and high/ low pressure gas line within a length of 6.5 ft. (2 m) from the kit. If ≤ 6.5 ft. (2 m) If > 6.5 ft. (2 m) To indoor units... -
Page 21: Field Wiring
8 .3 .2 . How to use the stop valve • After handling the stop valve, make sure to tighten the stop valve cover securely. For the tightening torque, refer to 8.3.2. How to use Tightening torques the stop valve. Tightening torque (Turn clockwise to close) Stop •... -
Page 22: Power Circuit, Safety Device And Cable Requirements
• Connect the wire securely using designated wire and fix it with 9 .2 . Wiring connection example for whole system attached clamp without applying external pressure on the terminal parts (terminal for power wiring, terminal for transmission wiring and ground terminal). •... -
Page 23: Leading Wire Procedure
9 .3 . leading wire procedure • The power wiring and ground wiring are passed out from the power wiring hole on the front (knock hole). • The transmission wiring is passed out from the wiring hole (knock hole) on the front of the unit. TO I N / D UNI T TO OUT/D UNI T TO MULTI UNI T... -
Page 24: Power Wiring Connection Procedure
If they are exceeded, transmission problems may occur. 9 .5 . Power wiring connection procedure Between outdoor unit and Branch Selector (indoor) unit • Be sure to connect the power supply wiring to the power supply ter- Between outdoor unit and outdoor unit of other systems minal block and hold it in place using the included clamp as shown Between outdoor unit and DOAS unit in the figure below. -
Page 25: Procedure For Wiring Inside Units
9 .6 . Procedure for Wiring Inside Units CAUTION • Referring to the figure below, secure and wire the power and trans- • Be sure to use crimp-style terminal with insulating sleeves for con- mission wiring using the included clamp (1), (2) and (3). nections. -
Page 26: Air Tight Test And Vacuum Drying
Precautions when knocking out knockout holes • To punch out a knockout hole, hit it with a hammer. • Open an appropriate hole as needed. • After knocking out the holes, trim off the burr, then we recommend you to paint the edges and areas around the edges using the repair paint to prevent rusting. -
Page 27: Pipe Insulation
If there is a pressure drop, check for leaks, make repairs and perform 12 . Checking of device and installation conditions the air tight test again. Be sure to check the followings. For those doing electrical work <Vacuum drying> 1 Make sure there is no faulty transmission wiring or loosening of a Evacuate the system from the suction gas pipe, high/low pressure gas nut. -
Page 28: Operating The Push Buttons And Dip Switches On The Printed Circuit Board
When turning on the power supply, the display flashes on and off. First 1 Front panel checks of the power supply are executed (1-2 minutes). 2 Inspection door 3 Main printed circuit board with 3 seven-segment display and 3 push buttons When no trouble occurs: lighted as indicated (8-10 minutes). -
Page 29: Connecting The Pc Configurator To The Outdoor Unit
• Push BS3 one time; the value which is returned (depending on the 13 .2 .2 . Operating the DIP switches actual field situation), is the amount of indoor units which are con- By operating the DIP switches it is possible to: nected to the system. -
Page 30: Calculating The Additional Refrigerant Charge
14 .2 . Calculating the additional refrigerant charge Parameter [D] Indoor unit FXMQ type NOTE capacity The refrigerant charge of the system must be less than 210 lbs. type (100 kg). This means that in case the calculated total refrigerant Refrigerant charge is equal to or more than 209 lbs. -
Page 31: Method For Adding Refrigerant
14 .3 . Method for adding refrigerant 14 .3 . 1 . Flow chart Step 1 Calculate additional refrigerant charge amount: R (lbs. (kg)) Step 2+3 • Close valves C and A • Open valve B to the liquid line •... - Page 32 << Continuation of previous page Heating charging Cooling charging (“ 22” startup control) (“ 02” startup control) (“ 23” waiting for stable heating) (“ 03” waiting for stable cooling) “ 23” is flashing “ 03” is flashing • Push BS2 within 5 minutes •...
- Page 33 If the additional refrigerant amount is smaller than 22 lbs. (10 kg), NOTE perform the pre-charging procedure as explained in step 3 and 4a • If the power of some units is turned off, the charging procedure can- below. not be finished properly. If the additional refrigerant charge is larger than 22 lbs.
- Page 34 - If the unit indicates , or , the ambient conditions are NOTE NOT favorable to execute the test run. Push BS1 to finish the • The refrigerant charging port is connected to the piping inside the automatic charging procedure. unit.
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Page 35: Start-Up And Configuration
Check the power supply voltage on the local supply panel. The voltage must correspond to the voltage on the identification label of the unit. Check subcooling for each outdoor unit by DAIKIN specified checker 4 Ground wiring and calculate the average subcooling of the outdoor unit using Be sure that the ground wires have been connected properly and weighted average method. -
Page 36: Monitoring Function And Field Settings
9 Stop valves Low noise operation can be set in mode 2. There are two Be sure that all stop valves are open. methods to activate low noise operation of the outdoor unit system. 10 Damaged equipment The first method is to enable an automatic low noise opera- Check the inside of the unit on damaged components or squeezed pipes. - Page 37 15 .2 .2 . Mode 2 [2-12]= Enable the low noise function and/or power consumption limitation via external control adaptor (DTA104A61/62) Mode 2 is used to change the field settings of the system. Consulting the current field setting value and changing the current field setting If the system needs to be running under low noise opera- value is possible.
- Page 38 [2-26]= Low noise operation start time [2-32]= Forced, all time, power consumption limitation operation (no external control adaptor is required to perform power Change [2-26]=1, 2 or 3 in function of required timing. consumption limitation) Default value=2. If the system always needs to be running under power Value Start time automatic low noise consumption limitation conditions, this setting activates and...
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Page 39: Energy Saving And Optimum Operation
Change [2-47]=0, 1, 2-7 in function of required operation [2-92]= Te target temperature upper limit method during cooling. Default value=1. For more information and advice about the impact of these Value settings, see 15.3. Energy saving and optimum operation. Te target temperature upper limit [2-92] [2-49]= Height difference setting... - Page 40 E.g., when your system is operating in heating, you do not need as This setting is used in conjunction with setting [2-8] and [2-47]. much heating under high outdoor ambient temperatures (e.g., 59°F • To activate the powerful comfort setting under heating opera- (15°C)) as under low outdoor ambient temperatures (e.g., 23°F tion, change field setting [2-82]=3.
- Page 41 Example: Automatic mode during cooling Example: Automatic mode during cooling 100% 100% 120°F (49°C) 115°F (46°C) 43°F (6°C) 37°F (3°C) 95°F (35°C) 36°F (2°C) A Actual load curve A Virtual load curve (default automatic mode peak capacity) B Virtual load curve (initial capacity automatic mode) B Load curve C Virtual target value (initial evaporation temperature C Virtual target value (initial condensation tempera-...
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Page 42: Test Operation
No matter which control is selected, variations on the behavior of the INFORMATION system are still possible due to protection controls to keep the unit Note that during the first running period of the unit, required power in- operating under reliable conditions. The intentional target, however, put may be higher. -
Page 43: Malfunction Code List
• The test operation is automatically carried out, the outdoor unit 15 .4 .3 . Correcting after abnormal completion of the test display will indicate and the indication Test operation and operation Under centralized control will display on the user interface of The test operation is only completed if there is no malfunction code indoor units. - Page 44 Malfunction code Contents Solution Main Sub code code Master/sub 1/sub 2 01/02/03 Reverse connection of high/low pressure gas pipe and Check connection of high/low pressure gas pipe and suction gas pipe of Branch Selector unit. suction gas pipe. 01/03/05 Discharge temperature too high (R2T/R21T/R22T): •...
- Page 45 Malfunction code Contents Solution Main Sub code code Master/sub 1/sub 2 06/08/10 Low pressure sensor malfunction: open circuit Check connection on printed circuit board or actuator. (S1NPL)-A1P (X31A) 07/09/11 Low pressure sensor malfunction: short circuit Check connection on printed circuit board or actuator. (S1NPL)-A1P (X31A) 14/15/16 Transmission trouble.
- Page 46 Malfunction code Contents Solution Main Sub code code Master/sub 1/sub 2 Connection malfunction over indoor units or type Check if other indoor units have malfunction and con- mismatch (R407C, Mini-split, etc). firm indoor unit mix is allowed. Wrong combination (different series (e.g. RXYQ and Correct the units combination.
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Page 47: Operation Of The Unit
16 . Operation of the unit For details refer to the wiring diagram labelled on the back of the control box cover. Once the units are installed and test operation of outdoor units, Branch Selector units and indoor units are finished, the operation of Pay attention to the fan. -
Page 48: Disposal Requirements
Direction of the refrigerant flow. Room where refrigerant leak has occurred (outflow of all the refrigerant from the system). Pay special attention to places, such as basements etc ., where refrigerant can stay, since refrigerant is heavier than air . Procedure for checking maximum concentration Check the maximum concentration level in accordance with steps 1 to 2 below and take whatever action is necessary to comply. - Page 49 Daikin Texas Technology Park, 19001 Kermier Road, Waller, TX, 77484, U.S.A. 3P362438-5N EM16A005B [1912] HT...
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