Daikin VRV III REYQ18PY1, Installation Manual

Page 1: ...System air conditioner INSTALLATION MANUAL REYQ18PY1 REYQ20PY1 REYQ22PY1 REYQ24PY1 REYQ26PY1 REYQ28PY1 REYQ30PY1 REYQ32PY1 REYQ34PY1 REYQ36PY1 REYQ38PY1 REYQ40PY1 REYQ42PY1 REYQ44PY1 REYQ46PY1 REYQ48PY1 ...

Page 2: ...YQ32PY1 E RXYQ34PY1 E RXYQ36PY1 E RXYQ38PY1 E RXYQ40PY1 E RXYQ42PY1 E RXYQ44PY1 E RXYQ46PY1 E RXYQ48PY1 E RXYQ50PY1 E RXYQ52PY1 E RXYQ54PY1 E REYP8PY1 REYP10PY1 REYP12PY1 REYP14PY1 REYP16PY1 REYP18PY1 REYP20PY1 REYP22PY1 REYP24PY1 REYP26PY1 REYP28PY1 REYP30PY1 REYP32PY1 REYP34PY1 REYP36PY1 REYP38PY1 REYP40PY1 REYP42PY1 REYP44PY1 REYP46PY1 REYP48PY1 REYP8PY1B REYP10PY1B REYP12PY1B REYP14PY1B REYP16...

Page 3: ...lled as a single unit Pattern 1 Pattern 2 Pattern 1 Pattern 2 Pattern 3 When installed in serial 1 4 3 4 3 4 3 4 3 1 2 1 1 1 200 300 Pattern 3 2 1 figure 6 1 2 1 2 3 4 figure 7 A B 1 4 3 2 765 729 631 765 1 2 3 figure 8 4 2 5 1 3 3 6 1 2 3 4 5 6 figure 9 1 2 3 4 4 1 2 3 5 4 6 8 7 16 17 19 18 9 5 6 14 10 11 12 9 9 9 8 7 15 15 13 9 9 5 100 100 100 5 100 100 100 1 2 3 4 figure 5 1 2 3 5 4 6 figure 10...

Page 4: ...1P A1P TOMULTIUNIT Q1 Q2 2 5 A1P 6 1 1 2 2 7 TOIN DUNIT F1 F2 F1 F2 TOOUT DUNIT F1 F2 F1 F2 9 10 1 TOIN DUNIT F1 F2 F1 F2 TOOUT DUNIT F1 F2 F1 F2 9 10 1 1 2 8 F1 F2 F1 F2 11 1 2 F1 F2 F1 F2 F1 F2 F1 F2 F1 F2 1 A1P 2 figure 20 1 2 3 4 5 4 4 6 1 2 3 4 5 6 7 4 8 8 L1 L2 L3 N figure 21 figure 23 figure 14 figure 15 figure 16 1 1 1 1 5 16 1 16 2 16 3 6 2 3 4 4 C D 7 8 A 3 4 1 5 2 B 1 2 ...

Page 5: ...15 1 2 1 2 3 figure 25 1 2 3 4 10 13 14 11 5 6 7 8 9 12 16 17 18 19 15 1 2 3 4 11 12 13 14 9 15 10 5 6 7 8 9 16 17 18 19 20 figure 29 figure 30 1 2 3 4 figure 32 1 2 3 4 5 figure 28 figure 24 1 2 3 4 5 6 7 8 9 10 12 11 In case of 8 12HP type In case of 14 16HP type 1 13 2 3 4 14 5 6 7 8 9 11 10 12 15 ...

Page 6: ...llowable safety limits in the event of refrigerant leakage Excessive refrigerant in a closed ambient can lead to oxygen defi ciency Contact your dealer for more information Be sure to use only the specified accessories and parts for instal lation work Failure to use the specified parts may result in water leakage electric shocks fire or the unit falling Install the air conditioner on a foundation ...

Page 7: ...ses covered by the Kyoto Protocol Do not vent gases into the atmosphere Refrigerant type R410A GWP 1 value 1975 1 GWP global warming potential Please fill in with indelible ink the factory refrigerant charge of the product the additional refrigerant amount charged in the field and the total refrigerant charge on the refrigerant charge label supplied with the product The filled out label must be ad...

Page 8: ...ee the Installation Space Examples for the minimum space requirements Installation Space Examples The installation space requirement shown in figure 2 is a refer ence for cooling operation when the outdoor temperature is 35 C If the design outdoor temperature exceeds 35 C or the heat load exceeds maximum capacity in all the outdoor unit take an even large space on the intake shown in figure 2 Duri...

Page 9: ...noise Refer to figure 6 The base should support the unit with the extent larger than hatched area in figure 7 If protective rubber is to be attached attach it to the whole face of the base The height of the base should be at least 150mm from the floor Secure the unit to its base using foundation bolts Use four com mercially available M12 type foundation bolts nuts and washers The foundation bolts ...

Page 10: ...1 1 Before working Caution After removing the gass remove the pinch piping Any gas remaining inside may blow off the pinch piping when you dis solve the brazing causing damage Refer to figure 12 1 Pich piping 4 pieces 2 Do not remove the relay piping 3 Pinch piping 4 Procedure 1 Confirm the shutoff valve is closed 5 Procedure 2 Connect a charge hose to the service port of shutoff valve and remove ...

Page 11: ...ader so it splits horizontally Refer to figure 15 1 Horizontal surface 2 B arrow view Pattern 1 Pattern 2 Prohibited pattern Change to pattern 1 or pattern 2 to indoor unit to indoor unit to indoor unit to indoor unit Piping between outdoor units to indoor unit Piping between outdoor units Downward inclination Downward inclination Oil remains in piping Front connections Side bottom connections Fro...

Page 12: ...a m n p 165m Example 8 a o 165m Equvalent pipe length between outdoor unit 2 and indoor unit 190m Note 1 Assume eqivalent pipe length of REFNET joint to be 0 5m that of REFNET header to be 1m that of BSVQ100 160 to be 4m that of BSVQ250 to be 6m for calculation purposes Total piping length from outdoor unit 2 to all indoor unit 1000m Actual pipe length from first outdoor unit multi connection pipi...

Page 13: ...M72HP KHRP25M73H KHRP25M73HP 2 pipes KHRP26M22H or KHRP26M33H KHRP26M33H KHRP26M72H KHRP26M73H KHRP26M73HP Refrigerant branch kit name Example for indoor units connected downstream Example REFNET joint C Indoor units 5 6 7 8 Example REFNET joint B Indoor units 7 8 Example REFNET header Indoor units 1 2 3 4 5 6 Example REFNET header Indoor units 1 2 3 4 5 6 7 8 The thickness of the pipes in the tab...

Page 14: ...6 4 0 37 0 18 0 059 0 26 0 12 0 022 1 02 HEAT RECOVER SYSTEM MODEL NAME THE AMOUNT OF REFRIGERANT REYQ18 20PY1 REYQ22 24PY1 REYQ26PY1 REYQ28 30PY1 REYQ32 40PY1 REYQ42PY1 REYQ44 46PY1 REYQ48PY1 1 0kg 1 5kg 2 0kg 2 5kg 3 0kg 3 5kg 4 0kg 4 5kg REFRIGERANT AMOUNT FOR EXCEEDING CONNECTION CAPACITY OF INDOOR UNIT INDOOR CONNECTION CAPACITY MORE THAN 100 120 OR LESS MORE THAN 120 130 OR LESS MODEL NAME R...

Page 15: ... If there exists the possibility of reversed phase lose phase momentary blackout or the power goes on and off while the prod uct is operating attach a reversed phase protection circuit locally Running the product in reversed phase may break the compres sor and other parts 7 1 Power circuit safety device and cable requirements A power circuit see the following table must be provided for con nection...

Page 16: ...st be finished simul taneously with the local refrigerant piping and wound with tape field supply as shown in figure 22 Refer to figure 22 1 Suction gas pipe 2 HP LP gas pipe 3 Liquid pipe 4 Insulation material 5 Finishing tape 6 Transmission wiring Transmission wiring between outdoor units in the outdoor multi sys tem must be connected to terminals Q1 and Q2 TO MULTI UNIT Connecting the wires to ...

Page 17: ...ipe When shipped the unit contains the refrigerant so use caution when attaching the charge hose Air tight test Pressurize the liquid pipe suction gas pipe HP LP gas pipe and equalizer pipe from the service ports of each shutoff valve to 4 0MPa 40bar do not pressurize more than 4 0MPa 40bar If the pres sure does not drop within 24 hours the system passes the test If there is a pressure drop check ...

Page 18: ...ing an improper material it may cause an explosion or accident R410A is a mixed refrigerant so charging it as a gas will cause the refrigerant composition to change which may prevent normal operation Shutoff valve operation procedure When operating the shutoff valve follow the procedure instructed below Note Do not open the shutoff valve until 10 CHECKING OF DEVICE AND INSTALLATION CONDITIONS are ...

Page 19: ... how to handle shutoff valves When done or when pausing the refrigerant charging operation close the valve of the refrigerant tank immediately The refrigerant charge port of this product have electric expansion valve The valve will be closed at end of refrigerant charging However the valve will be opened on operation after refrigerant charging check operation nomal operation etc If the tank is lef...

Page 20: ...harging operation within the refrigerant system that have the power off unit the operation cannot finish properly For confirming the number of the outdoor and indoor units with the power on see How to check how many units are con nected in chapter 11 1 In case of a multi system turn on the power to all outdoor units in the refrigerant system To energize the crankcase heater make sure to turn on fo...

Page 21: ...irst istallation the malfunction code U3 will be displayed in the remote controller Perform the check operation following 11 2 2 Procedure of Check Operation 13 3 Checks After Test Run Perform the following checks after the test run is complete Record the contents of field setting Record them on the accessory REQUEST FOR THE INDI CATION label And attach the label on the back side of the front pane...

Page 22: ...ion Where there is an opening without a door or where there are open ings above and below the door which are each equivalent in size to 0 15 or more of the floor area 3 Calculating the refrigerant density using the results of the calcu lations in steps 1 and 2 above If the result of the above calculation exceeds the maximum con centration level then make similar calculations for the second then th...

Page 23: ...3P201178 5 EM06A072 0702 FS ...