Daikin REMQ5T7Y1B Installation And Operation Manual Download Page 1

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Installation and operation manual

VRV IV system air conditioner

English

Installation and operation

manual

VRV IV system air conditioner

REYQ8T7Y1B
REYQ10T7Y1B
REYQ12T7Y1B
REYQ14T7Y1B
REYQ16T7Y1B
REYQ18T7Y1B
REYQ20T7Y1B

REMQ5T7Y1B

Summary of Contents for REMQ5T7Y1B

Page 1: ...d operation manual VRV IV system air conditioner English Installation and operation manual VRV IV system air conditioner REYQ8T7Y1B REYQ10T7Y1B REYQ12T7Y1B REYQ14T7Y1B REYQ16T7Y1B REYQ18T7Y1B REYQ20T7...

Page 2: ...saik rendelkez seit z p niejszymi poprawkami 18 19 20 21 22 23 24 25 Directivelor cu amendamentele respective Direktive z vsemi spremembami Direktiivid koos muudatustega Direktyvose su papildymais Dir...

Page 3: ...S vastaava kyll stysl mp tila M C Kylm aine N Varmuuspainelaitteen asetus P bar Valmistusnumero ja valmistusvuosi katso mallin nimikilpi Maxim ln p pustn tlak PS K bar Minim ln maxim ln p pustn teplot...

Page 4: ...after charging refrigerant 20 5 6 10 To fix the fluorinated greenhouse gases label 20 5 7 Connecting the electrical wiring 20 5 7 1 Field wiring Overview 20 5 7 2 Guidelines when knocking out knockout...

Page 5: ...t a d 1 1 e 1 3P328191 1 BE SURE TO FILL OUT THE BLANKS WHICH ARE NEEDED FOR AFTER SALE SERVICES REQUESTFORTHEINDICATIONOFINSTALLATIONINFORMATION 1 RECORD OF INDOOR UNIT MODELAND INSTALLATION SITE 2 R...

Page 6: ...l inverter driven heat recovery system Model line up Model Description REYQ8 20 Heat recovery model for single or multi use Model Description REMQ5 Heat recovery model for multi use only Depending on...

Page 7: ...in holes free 4 2 Preparing refrigerant piping 4 2 1 Refrigerant piping requirements NOTICE Refrigerant R410A requires strict cautions for keeping the system clean and dry Foreign materials including...

Page 8: ...door unit Size up HP class Liquid piping outer diameter size mm 5 8 9 5 12 7 10 12 14 12 7 15 9 16 18 22 15 9 19 1 24 26 34 19 1 22 2 36 54 The pipe thickness of the refrigerant piping shall comply wi...

Page 9: ...r unit b Oil collects to the outmost outdoor unit when the system stops X Not allowed O Allowed If the piping length between the outdoor units exceeds 2 m create a rise of 200 mm or more in the suctio...

Page 10: ...cordingly the minimum circuit ampacity of the REYQ30 16 1 22 0 24 0 62 1 A Multiply the above result by 1 1 62 1 A 1 1 68 3 A so the recommended fuse capacity would be 80 A NOTICE When using residual...

Page 11: ...or point 4 HP AA AB 5 12 766 992 14 20 1076 1302 Fasten the unit in place using four foundation bolts M12 It is best to screw in the foundation bolts until their length remains 20 mm above the foundat...

Page 12: ...00 mm of straight section can be ensured 120 mm 500 mm 5 3 4 Multiple outdoor units Knockout holes Connection Description Front connection Remove the front plate knockout holes to connect Connection D...

Page 13: ...esult in property damage or personal injury which may be serious depending on the circumstances Use the following procedure to remove the pinched piping 1 Remove the valve cover and make sure that the...

Page 14: ...e the unit has been factory tested for leaks Only field installed refrigerant piping needs to be checked Therefore make sure that all the outdoor unit stop valves are firmly closed before performing l...

Page 15: ...he refrigerant piping 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 br...

Page 16: ...ge refrigerant Flow chart on page 16 5 6 3 To determine the additional refrigerant amount INFORMATION For final charge adjustment in the test laboratory please contact your local dealer NOTICE The ref...

Page 17: ...R Q Continued on next page p p R410A N2 C D A B Charging refrigerant Step 6 Proceed with automatic or manual charge Step 6b Activate field setting 2 20 1 Unit will start manual refrigerant charging o...

Page 18: ...al refrigerant amount via setting 2 14 Go to test run Following codes appear e 2 indoor temperature out of range and e 3 outdoor temperature out of range Push BS1 to leave program Charging is finished...

Page 19: ...o the piping inside the unit The unit s internal piping is already factory charged with refrigerant so be careful when connecting the charge hose After adding the refrigerant do not forget to close th...

Page 20: ...edure Indoor unit is out of temperature range for leak detection operation Retry when ambient conditions are satisfied Outdoor unit is out of temperature range for leak detection operation Retry when...

Page 21: ...s a b c d a Knockout hole b Burr c Remove burrs d If there are any possibilities that small animals enter the system through the knockout holes plug the holes with packing materials to be prepared on...

Page 22: ...p them along with the on site refrigerant pipes using finishing tape as shown in figure below b a f c d f e f a Liquid pipe b Gas pipe c Finishing tape d High pressure low pressure gas pipe e Transmis...

Page 23: ...n to the system See also 6 1 9 To connect the PC configurator to the outdoor unit on page 26 Mode 1 and 2 Mode Description Mode 1 monitoring settings Mode 1 can be used to monitor the current situatio...

Page 24: ...ment display indication changes to INFORMATION If you get confused in the middle of the process push BS1 Then it returns to idle situation no indication on 7 segment displays blank refer to 6 1 4 To a...

Page 25: ...target C 0 default Auto 2 6 3 7 4 8 5 9 6 10 7 11 2 9 Tc target temperature during heating operation 2 9 Tc target C 0 default Auto 1 41 2 42 3 43 4 44 5 45 6 46 2 14 Input additional refrigerant amou...

Page 26: ...ing an interval of 2 85 days Availability of the leak detection function feature requires input of the additional refrigerant charge amount immediately after finishing the charging The input must be e...

Page 27: ...nt cover Installation date and field setting Be sure to keep record of the installation date on the sticker on the rear of the upper front panel according to EN60335 2 40 and keep record of the conten...

Page 28: ...detailed malfunction codes related to indoor units 8 Troubleshooting 8 1 Solving problems based on error codes In case of a displayed malfunction code perform correcting actions as explained in the ma...

Page 29: ...harge unit Refrigerant overcharge Stop valve closed Check refrigerant amount recharge unit Open stop valves Ambient temperature sensor malfunction R1T main PCB X18A Check connection on PCB or actuator...

Page 30: ...on PCB or actuator Low pressure sensor malfunction S1NPL open circuit main PCB X31A Check connection on PCB or actuator Low pressure sensor malfunction S1NPL short circuit main PCB X31A Check connecti...

Page 31: ...ombination multi system Check if unit types are compatible Wrong outdoor unit connected Disconnect the outdoor unit No BS unit connected Connect a BS unit Old BS unit connected Disconnect the BS unit...

Page 32: ...a 10 mm b 300 mm c 10 mm d 500 mm a 50 mm b 100 mm c 50 mm d 500 mm a 200 mm b 300 mm 2 a 10 mm b 300 mm c 10 mm d 500 mm e 20 mm a 50 mm b 100 mm c 50 mm d 500 mm e 100 mm a 200 mm b 300 mm e 400 mm...

Page 33: ...e service space dimensions in above figure are based on cooling operation at 35 C ambient temperature standard conditions INFORMATION Further specifications can be found in the technical engineering d...

Page 34: ...ical data Installation and operation manual 34 REYQ8 20 REMQ5T7Y1B VRV IV system air conditioner 4P353996 1E 2018 04 Piping diagram 14 20 HP 3D088099 page 1 High pressure low pressure Gas Liquid Servi...

Page 35: ...y will or will not exist It will be indicated throughout this operation manual when certain features have exclusive model rights or not The complete system can be divided into several sub systems Thes...

Page 36: ...rily drop until defrosting is completed After defrosting the unit will regain its full heating capacity In case of Then REYQ10 54 multi models The indoor unit will continue heating operation at a redu...

Page 37: ...suspended and wall mounted Refer to 12 4 Adjusting the air flow direction on page 37 for details To stop 5 Press the ON OFF button on the user interface once again Result The operation lamp goes out...

Page 38: ...em until a service person confirms that the portion where the refrigerant leaks is repaired 13 2 After sales service and warranty 13 2 1 Warranty period This product includes a warranty card that was...

Page 39: ...view In case a malfunction code appears on the indoor unit user interface display contact your installer and inform the malfunction code the unit type and serial number you can find this information o...

Page 40: ...d 14 2 4 Symptom The fan speed does not correspond to the setting The fan speed does not change even if the fan speed adjustment button is pressed During heating operation when the room temperature re...

Page 41: ...uct operation 14 2 15 Symptom The display shows 88 This is the case immediately after the main power supply switch is turned on and means that the user interface is in normal condition This continues...

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