Daikin REYQ8U7Y1B Installation And Operation Manual Download

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20 Technical data

Installation and operation manual

REYQ8~20+REMQ5U7Y1B
VRV IV+ heat recovery
4P546222-1B – 2020.10

Q1LD (A1P)

Earth current detector

Q1RP (A1P)

Phase reversal detect circuit

R24 (A4P)

Resistor (current sensor)

R300 (A3P)

Resistor (current sensor)

R1T

Thermistor (air)

R3T

Thermistor (liquid, main)

R4T

Thermistor (heat exchanger, liquid pipe upper)

R5T

Thermistor (heat exchanger, liquid pipe lower)

R6T

Thermistor (subcool heat exchanger gas)

R7T

Thermistor (subcool heat exchanger liquid)

R8T

Thermistor (heat exchanger, gas upper)

R9T

Thermistor (heat exchanger, gas lower)

R10T

Thermistor (suction)

R11T

Thermistor (heat exchanger, de-icer)

R12T

Thermistor (suction compressor)

R13T

Thermistor (receiver gas)

R14T

Thermistor (auto charge)

R15T

Thermistor (compressor body)

R21T

Thermistor (M1C discharge)

S1NPH

Pressure sensor (high)

S1NPL

Pressure sensor (low)

S1PH

Pressure switch (discharge)

SEG1~SEG3
(A1P)

7-segment display

T1A

Current sensor

V1D (A3P)

Diode

V1R (A3P, A4P) Power module

X*A

Connector

X1M

Terminal block

X1M (A1P)

Terminal block (control)

Y1E

Electronic expansion valve (heat exchanger upper)

Y2E

Electronic expansion valve (subcool heat
exchanger)

Y3E

Electronic expansion valve (heat exchanger lower)

Y4E

Electronic expansion valve (receiver gas)

Y5E

Electronic expansion valve (inverter cooling)

Y6E

Electronic expansion valve (auto charge)

Y2S

Solenoid valve (liquid pipe)

Y3S

Solenoid valve (high pressure/low pressure gas
pipe)

Y4S

Solenoid valve (heat exchanger lower)

Y5S

Solenoid valve (heat exchanger upper)

Y11S

Solenoid valve (M1C oil return)

Z*C

Noise filter (ferrite core)

Z*F (A2P)

Noise filter (with surge absorber)

Connector for optional accessories:

X10A

Connector (bottom plate heater)

Legend for wiring diagram 14~20 HP:

A1P

Printed circuit board (main)

A2P, A5P

Printed circuit board (noise filter)

A3P, A6P

Printed circuit board (inverter)

A4P, A7P

Printed circuit board (fan)

A8P

Printed circuit board (sub)

BS1~BS3 (A1P) Push button switch (MODE, SET, RETURN)

C* (A3P)

Capacitor

DS1, DS2
(A1P)

DIP switch

E1HC

Crankcase heater

E3H

Drain pan heater (option)

F1U, F2U (A1P) Fuse (T 3.15 A / 250 V)

F1U (A8P)

Fuse (T 3.15 A / 250 V)

F3U

Field fuse

F101U (A4P,
A7P)

Fuse

F401U, F403U
(A2P, A5P)

Fuse

F601U, (A3P,
A6P)

Fuse

HAP (A*P)

Pilot lamp (service monitor is green)

K3R (A3P, A6P) Magnetic relay

K3R (A1P)

Magnetic relay (Y12S)

K4R (A1P)

Magnetic relay (Y11S)

K6R (A1P)

Magnetic relay (E3H)

K7R (A1P)

Magnetic relay (E1HC)

K8R (A1P)

Magnetic relay (E2HC)

K9R (A1P)

Magnetic relay (Y3S)

K11R (A1P)

Magnetic relay (Y2S )

K12R (A1P)

Magnetic relay (Y4S)

K13R (A1P)

Magnetic relay (Y5S)

L1R, L2R

Reactor

M1C, M2C

Motor (compressor)

M1F, M2F

Motor (fan)

PS (A1P, A3P,
A6P, A8P)

Switching power supply

Q1DI

Earth leakage circuit breaker

Q1LD (A1P)

Earth current detector

Q1RP (A1P)

Phase reversal detect circuit

R24 (A4P, A7P) Resistor (current sensor)

R300 (A3P,
A6P)

Resistor (current sensor)

R1T

Thermistor (air)

R3T

Thermistor (liquid, main)

R4T

Thermistor (heat exchanger, liquid pipe upper)

R5T

Thermistor (heat exchanger, liquid pipe lower)

R6T

Thermistor (subcool heat exchanger gas)

R7T

Thermistor (subcool heat exchanger liquid)

R8T

Thermistor (heat exchanger, gas upper)

R9T

Thermistor (heat exchanger, gas lower)

R10T

Thermistor (suction)

R11T

Thermistor (heat exchanger, de-icer)

R12T

Thermistor (suction compressor)

R13T

Thermistor (receiver gas)

R14T

Thermistor (auto charge)

R15T (only
18+20 HP)

Thermistor (compressor body)

R21T, R22T

Thermistor (M1C, M2C discharge)

S1NPH

Pressure sensor (high)

S1NPL

Pressure sensor (low)

S1PH, S2PH

Pressure switch (discharge)

Summary of Contents for REYQ8U7Y1B

Page 1: ...lation and operation manual VRV IV heat recovery English Installation and operation manual VRV IV heat recovery REYQ8U7Y1B REYQ10U7Y1B REYQ12U7Y1B REYQ14U7Y1B REYQ16U7Y1B REYQ18U7Y1B REYQ20U7Y1B REMQ5...

Page 2: ...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 Direkt v s un to papildin...

Page 3: ...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 teplota...

Page 4: ...lay shows 88 14 8 2 16 Symptom The compressor in the outdoor unit does not stop after a short heating operation 14 8 2 17 Symptom The inside of an outdoor unit is warm even when the unit has stopped 1...

Page 5: ...st read before installing Format Paper in the box of the outdoor unit Outdoor unit installation and operation manual Installation and operation instructions Format Paper in the box of the outdoor unit...

Page 6: ...e side Do NOT use taped wires stranded conductor wires extension cords or connections from a star system They can cause overheating electrical shock or fire Do NOT install a phase advancing capacitor...

Page 7: ...nsuring this product is disposed of correctly you will help to prevent potential negative consequences for the environment and human health For more information contact your installer or local authori...

Page 8: ...vice personnel confirm that the point of leakage has been repaired or corrected before resuming operation WARNING Stop operation and shut off the power if anything unusual occurs burning smells etc Le...

Page 9: ...ly is turned off during operation operation will restart automatically after the power turns back on again 6 2 2 About cooling heating fan only and automatic operation Changeover cannot be made with a...

Page 10: ...ration if the room temperature is low 20 C 6 3 2 To use the dry program WITHOUT cool heat changeover remote control switch To start 1 Press the operation mode selector button on the user interface sev...

Page 11: ...e Only the master user interface can select heating or cooling mode 7 Maintenance and service NOTICE NEVER inspect or service the unit by yourself Ask a qualified service person to perform this work W...

Page 12: ...he malfunction code If the system does NOT operate properly except for the above mentioned cases and none of the above mentioned malfunctions is evident investigate the system in accordance with the f...

Page 13: ...ation System mismatch Wrong type of indoor units combined Indoor unit malfunction Connection malfunction over indoor units or type mismatch Centralised address duplication Malfunction in communication...

Page 14: ...ise is heard In order to prevent oil and refrigerant from remaining in the system a small amount of refrigerant is kept flowing 8 2 10 Symptom Noise of air conditioners Indoor unit outdoor unit A cont...

Page 15: ...E O6 4 x 0 022 105 CR 130 50 CR 105 50 CR 70 70 CR 85 85 CR 105 105 CR 130 8HP Total indoor unit capacity connection ratio CR 10 12HP 14 16HP 18 20HP 2 0 1 5 1 5 1 2 1 5 1 1 0 7 1 0 0 5 0 5 0 3 0 5 0...

Page 16: ...on the heating capacity can go up till 168 kW and in cooling till 150 kW The outdoor unit is designed to work in heating mode at ambient temperatures from 20 C WB to 15 5 C WB and in cooling mode at a...

Page 17: ...cal component box of the outdoor unit 417 For service purposes the pushbuttons on the main PCB need to be accessed To access these pushbuttons the electrical component box cover does not need to be op...

Page 18: ...t piping 14 1 1 Refrigerant piping requirements NOTICE Refrigerant R410A requires strict cautions for keeping the system clean and dry Foreign materials including mineral oils or moisture should be pr...

Page 19: ...Piping between refrigerant branch kit and indoor unit e Indoor 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 T...

Page 20: ...the piping between outdoor units as shown in the 4 correct possibilities of the figure below a b b b a b b b a b a b a b a a a 200 mm a To indoor unit b Oil collects to the outmost outdoor unit when...

Page 21: ...outdoor unit Install the joints horizontally so that the caution label a attached to the joint comes to the top Do not tilt the joint more than 7 5 see view A Do not install the joint vertically see v...

Page 22: ...ce port cover securely For the tightening torque refer to the table below Check for refrigerant leaks after tightening the service port cover Tightening torques Stop valve size mm Tightening torque N...

Page 23: ...ait to apply setting 2 21 until the outdoor unit has finished the initialisation Leak test and vacuum drying Checking the refrigerant piping involves Checking for any leakages in the refrigerant pipin...

Page 24: ...o perform vacuum drying To remove all moisture from the system proceed as follows 1 Evacuate the system for at least 2 hours to a target vacuum of 100 7 kPa 1 007 bar 5 Torr absolute 2 Check that with...

Page 25: ...ible when Hydrobox units are connected to the system To speed up the refrigerant charging process it is in case of larger systems recommended to first pre charge a portion of refrigerant through the l...

Page 26: ...ing installation Installation and operation manual 26 REYQ8 20 REMQ5U7Y1B VRV IV heat recovery 4P546222 1B 2020 10 Inch piping Metric piping Piping Weight factor Piping Weight factor 22 2 mm 0 37 22 m...

Page 27: ...rigerant overcharge happened recover refrigerant to reach R Q Step 2 3 Close valves C D and A Open valve B to the liquid line Execute pre charging amount Q kg Disconnect the manifold from the gas line...

Page 28: ...en valve A Charge remaining amount of refrigerant P kg R Q P Depending on ambient conditions the unit will decide to perform autocharge operation in heating or cooling mode Close valve A Push BS3 to s...

Page 29: ...ditional 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 fi...

Page 30: ...is connected to 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 for...

Page 31: ...mperature range for leak detection operation Retry when ambient conditions are satisfied Outdoor unit is out of temperature range for leak detection operation Retry when ambient conditions are satisfi...

Page 32: ...EYQ40 14556 REYQ42 14735 REYQ44 15094 REYQ46 15634 REYQ48 16172 REYQ50 17071 REYQ52 17969 REYQ54 18868 INFORMATION Multi units are standard combinations 15 2 Safety device requirements The power suppl...

Page 33: ...smission wiring Q1 Q2 c Plastic bracket d Field supplied clamps 15 5 To connect the transmission wiring The wiring from the indoor units must be connected to the F1 F2 In Out terminals on the PCB in t...

Page 34: ...has to be removed Close the hole to avoid small animals or dirt from entering 15 8 To connect the power supply The power supply MUST be clamped to the plastic bracket using field supplied clamp mater...

Page 35: ...an be monitored as well Mode 2 field settings Mode 2 is used to change the field settings of the system Consulting the current field setting value and changing the current field setting value is possi...

Page 36: ...e process push BS1 to return to the default situation no indication on 7 segment displays blank refer to To access mode 1 or 2 436 16 1 5 To use mode 1 Mode 1 is used to set basic settings and to moni...

Page 37: ...heating comfort setting 16 1 8 Mode 2 Field settings 2 0 Cool Heat selection setting 2 0 Description 0 default Each individual outdoor unit can select Cool Heat operation by Cool Heat selector if ins...

Page 38: ...the outdoor unit exceeds 50 m the setting 2 49 has to be changed to 1 16 1 9 To connect the PC configurator to the outdoor unit X 2 7 A a b c 2 3 4 5 H J S T X27A A1P a PC b Cable EKPCCAB c Outdoor u...

Page 39: ...has been bypassed Internal wiring Visually check the electrical component box and the inside of the unit for loose connections or damaged electrical components Pipe size and pipe insulation Be sure th...

Page 40: ...operation will be possible after 5 minutes 17 5 Correcting after abnormal completion of the test run The test operation is only completed if there is no malfunction code displayed on the user interfac...

Page 41: ...PCB X21A Check connection on PCB or actuator Electronic expansion valve malfunction lower heat exchanger Y3E main PCB X23A Check connection on PCB or actuator Electronic expansion valve malfunction su...

Page 42: ...ection on PCB or actuator Upper heat exchanger gas temperature sensor R8T main PCB X29A Check connection on PCB or actuator Lower heat exchanger gas temperature sensor R9T main PCB X29A Check connecti...

Page 43: ...tem test run An error occurred during the test run Re execute the test run Test run aborted Re execute the test run Test run aborted due to communication issues Check the communication wires and re ex...

Page 44: ...de Leak detection function related Unit is not prepared to execute leak detection operation Refer to requirements to be able to execute leak detection operation Indoor unit is out of temperature range...

Page 45: ...h obstacles F Front side Suction side In case of an installation site where sides A B C D have obstacles the wall heights of sides A C have no impact on service space dimensions Refer to the figure ab...

Page 46: ...manual 46 REYQ8 20 REMQ5U7Y1B VRV IV heat recovery 4P546222 1B 2020 10 20 2 Piping diagram Outdoor unit Piping diagram 5 12 HP a b d e c a Stop valve liquid b Service port c Stop valve high pressure...

Page 47: ...on and operation manual 47 REYQ8 20 REMQ5U7Y1B VRV IV heat recovery 4P546222 1B 2020 10 Piping diagram 14 20 HP a b d e c a Stop valve liquid b Service port c Stop valve high pressure low pressure d S...

Page 48: ...es S1PH S2PH for 14 20 HP only 6 For 5 12 HP When using the optional accessory refer to the installation manual of the optional accessory 6 For 14 20 HP connector X1A M2F is red connector X2A M2F is w...

Page 49: ...or for optional accessories X10A Connector bottom plate heater Legend for wiring diagram 14 20 HP A1P Printed circuit board main A2P A5P Printed circuit board noise filter A3P A6P Printed circuit boar...

Page 50: ...inverter cooling Y6E Electronic expansion valve auto charge Y2S Solenoid valve liquid pipe Y3S Solenoid valve high pressure low pressure gas pipe Y4S Solenoid valve heat exchanger lower Y5S Solenoid v...

Page 51: ......

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