background image

R REMQ10~16P8 + REMHQ12P8Y1B

VRVIII System air conditioner

4PW48463-1A

Installation manual

12

Vacuum drying: Use a vacuum pump which can evacuate to 
–100.7 kPa (5 Torr, –755 mm Hg)

1.

Evacuate the system from the liquid pipe, the suction gas pipe,
the high pressure/low pressure gas pipe and the equalizer pipe
stop valve service ports by using a vacuum pump for more than
2 hours and bring the system to –100.7 kPa. After keeping the
system under that condition for more than 1 hour, check if the
vacuum gauge rises or not. If it rises, the system may either
contain moisture inside or have leaks.

2.

Following should be executed if there is a possibility of moisture
remaining inside the pipe (if piping work is carried out during the
raining season or over a long period of time, rainwater may enter
the pipe during work).
After evacuating the system for 2 hours, pressurize the system to
0.05 MPa (vacuum break) with nitrogen gas and evacuate the
system again using the vacuum pump for 1 hour to –100.7 kPa
(vacuum drying). If the system cannot be evacuated to

 

–100.7 kPa

within 2 hours, repeat the operation of vacuum break and vacuum
drying.
Then, after leaving the system in vacuum for 1 hour, confirm that
the vacuum gauge does not rise.

8.

F

IELD

 

WIRING

8.1.

Internal wiring – Parts table

Refer to the wiring diagram sticker on the unit. The abbreviations
used are listed below:

A1P~A8P ............ Printed circuit board (main, noise filter, inverter,

fan, sub, current sensor, current sensor, fan)

BS1~BS5 ............ Push button switch (mode, set, return, test, reset)

C1,C63,C66 ........ Capacitor

E1HC~E3HC....... Crankcase heater

F1U ..................... Fuse (DC 650 V, 8 A, B) (A4P, A8P)

F1U ..................... Fuse (T, 3.15 A, 250 V) (A5P)

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

F5U ..................... Field fuse (field supply)

F400U ................. Fuse (T, 6.3 A, 250 V) (A2P)

H1P~H8P ............ Pilot lamp

H2P: Under preparation or in test operation when

blinking

H2P: Malfunction detection when light up

HAP..................... Pilot lamp (service monitor - green) (A1P, A5P)

K1,K3 .................. Magnetic relay

K1R ..................... Magnetic relay (K2M–A1P, Y5S–A5P)

K2,K4 .................. Magnetic contactor (M1C)

K2M..................... Magnetic contactor for M2C 

(only for REMQ10~16 + REMHQ12)

K2R ..................... Magnetic relay (K3M–A1P, Y6S–A5P)

K3M..................... Magnetic contactor for M3C 

(only for 16 + REMHQ12)

K3R~K5R ............ Magnetic relay (Y1S~Y3S–A1P)

K5R ..................... Magnetic relay (for option–A5P)

K6R ..................... Magnetic relay (Y7S–A5P)

K7R~K9R ............ Magnetic relay (E1HC~E3HC–A1P)

K11R ................... Magnetic relay (Y4S–A1P)

L1R ..................... Reactor

M1C~M3C........... Motor (compressor)

M1F,M2F ............. Motor (fan)

PS ....................... Switching power supply (A1P,A3P)

Q1DI.................... Earth leakage breaker (field supply)

Q1RP .................. Phase reversal detection circuit

R1T ..................... Thermistor (air–A1P, fin–A3P)

R3T~R9T ............ Thermistor (H/E gas, H/E-de-icer, sub cool H/E

gas, sub cool H/E liquid, H/E liquid, suction, liquid)

R10 ..................... Resistor (current sensor) (A4P, A8P)

R31T~R33T ........ Thermistor (discharge) (M1C~M3C)

R50,R59.............. Resistor

R90 ..................... Resistor (current sensor)

R95 ..................... Resistor (current limiting)

S1NPH ................ Pressure sensor (high)

S1NPL................. Pressure sensor (low)

S1PH~S3PH ....... Pressure switch (high)

SD1 ..................... Safety devices input

T1A ..................... Current sensor (A6P, A7P)

V1R ..................... Diode bridge (A3P)

V1R ..................... Power module (A4P, A8P)

V2R ..................... Power module (A3P)

X1A,X4A ............. Connector (M1F, M2F)

X1M..................... Terminal strip (power supply)

X1M..................... Terminal strip (control) (A1P)

Y1E~Y3E ............ Electronic expansion valve (main, charge,

subcool)

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.

Be sure to use a dedicated power circuit. Never use a
power supply shared by another appliance. This can lead
to electric shock or fire.

Be sure to install an earth leakage circuit breaker.
(Because this unit uses an inverter, install an earth
leakage circuit breaker that is capable of handling high
harmonics in order to prevent malfunctioning of the earth
leakage breaker itself.)

Do not operate until refrigerant piping work is completed.
(If operated before completion of the piping work, the
compressor may break down.)

Never remove a thermistor, sensor, etc., when connecting
power wiring and transmission wiring.
(If operated without thermistor, sensor, etc., the
compressor may break down.)

The reversed phase protection detector of this product only
functions when the product starts up. Consequently,
reversed phase detection is not performed during normal
operation of the product.

The reversed phase protection detector is designed to stop
the product in the event of an abnormality when the
product is started up.

Replace two of the three phases (L1, L2, and L3) during
reverse-phase protection circuit operation.

If the possibility of reversed phase exists after a
momentary blackout and the power goes on and off while
the product is operating, attach a reversed phase
protection circuit locally. Running the product in reversed
phase can break the compressor and other parts.

Means for disconnection must be incorporated in the field
wiring in accordance with the wiring rules.
(An all-pole disconnection switch must be available on the
unit.)

Summary of Contents for REMQ8P9Y1B

Page 1: ...INSTALLATION MANUAL REMQ8P9Y1B REMQ10P8Y1B REM H Q12P8Y1B REMQ14P8Y1B REMQ16P8Y1B System air conditioner...

Page 2: ...mm d 500 mm a 50 mm b 100 mm c 50 mm d 500 mm a 200 mm b 300 mm 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 a 10 mm b 300 mm c 10 mm...

Page 3: ...500 mm 1 1 1 A B 2 2 2 4 5 3 8 F1 F2 F1 F2 Q1 Q2 F1 F1 F2 F2 Q1Q2 7 TOIN DUNIT TOOUT DUNIT TOMULTIUNIT A1P Q1 Q2 A1P Q1 Q2 A1P 1 2 2 3 4 5 6 8 10 10 9 9 REMQ8 12 REMQ14 16 REMHQ12 1 2 3 4 1 5 6 7 8 F...

Page 4: ...uz uvjet da se oni koriste u skladu s na im uputama 16 megfelelnek az al bbi szabv ny ok nak vagy egy b ir nyad dokumentum ok nak ha azokat el r s szerint haszn lj k 17 spe niaj wymogi nast puj cych...

Page 5: ...ll stysl mp tila M C Kylm aine N Varmuuspainelaitteen asetus P bar Valmistusnumero ja valmistusvuosi katso mallin nimikilpi 14 Maxim ln p pustn tlak PS K bar Minim ln maxim ln p pustn teplota TS TSmin...

Page 6: ...75 kW For changing the refrigerant flow to indoor units the REYQ P system can be combined with BS units of the types BSVQ100P BSVQ160P and BSVQ250P only Other BS unit types will cause malfunctions whe...

Page 7: ...REYQ48 REMQ16 REMQ16 REMQ16 600 1560 Standard combinations of outdoor units Total capacity of indoor units REYHQ16 REMQ8 REMQ8 200 520 REYHQ20 REMQ8 REMHQ12 250 650 REYHQ22 REMQ10 REMHQ12 275 715 REY...

Page 8: ...owable safety limits in the event of a refrigerant leak 11 To prevent dripping water to form a puddle underneath the unit install a drain pan available as option kit 12 The equipment is not intended f...

Page 9: ...The height of the foundation must at least be 150 mm from the floor The unit must be installed on a solid longitudinal foundation steelbeam frame or concrete and make sure the base under the unit is...

Page 10: ...piping must be installed by a licensed refrigeration technician and must comply with relevant local and national regulations Caution to be taken when brazing refrigerant piping Do not use flux when b...

Page 11: ...lves are fully closed 2 Connect a charge hose to service ports of all stop valves 3 Recover gas and oil from the pinched piping by using a recovery unit 4 When all gas and oil is recovered from the pi...

Page 12: ...ns The piping between the outdoor units must be routed level or slightly upward to avoid the risk of oil retention into the piping side Pattern 1 Pattern 2 Prohibited patterns change to pattern 1 or 2...

Page 13: ...ation may lead to malfunction of the outdoor unit 5 Piping length restrictions Make sure to perform the piping installation within the range of the maximum allowable pipe length allowable level differ...

Page 14: ...40 m Outdoor unit multi connection piping kit and refrigerant branch kit selection How to select the refnet joint When using refnet joints at the first branch counted from the outdoor unit side choose...

Page 15: ...of the connected outdoor unit Suction gas pipe Liquid pipe 20 25 32 40 50 12 7 6 4 Outdoor unit capacity type Hp Piping outer diameter size mm 63 80 100 125 15 9 9 5 Suction gas pipe HP LP gas pipe Li...

Page 16: ...ncreased to 90 m Size up of the main suction gas pipe may affect a good oil return to the outdoor unit due to influence of the HP LP gas pipe indoor unit 8 b c d e f g p 90 m increase the pipe size of...

Page 17: ...fan PS Switching power supply A1P A3P Q1DI Earth leakage breaker field supply Q1RP Phase reversal detection circuit R1T Thermistor air A1P fin A3P R3T R9T Thermistor H E gas H E de icer sub cool H E g...

Page 18: ...for connection wiring to indoor outdoor transmission F1 F2 outdoor outdoor transmission F1 F2 outdoor multi transmission Q1 Q2 and on how to use BS1 BS5 and DS1 DS2 switch Do not operate the unit by s...

Page 19: ...eans that an earth leakage breaker capable of handling high frequency electrical noise must be used in order to prevent malfunctioning of the earth leakage breaker itself Earth leakage breakers that a...

Page 20: ...he back of the electric box lid 2 Power wiring and ground wiring between outdoor units inside conduit When the wiring is routed out through the lateral panel 3 Transmission wiring 4 Pipe opening 5 Con...

Page 21: ...nsmission wiring between outdoor units 1 Liquid pipe 2 HP LP gas pipe 3 Finishing tape 4 Suction gas pipe 5 Transmission wiring 6 Insulation material 1 Power supply 380 415 V 3N 50 Hz 2 Earth leakage...

Page 22: ...igerant follow the procedure as described in this chapter 11 1 Important information regarding the refrigerant used This product contains fluorinated greenhouse gases covered by the Kyoto Protocol Do...

Page 23: ...its that are active can be read from the LED display in the Monitor Mode procedure below NOTE National implementation of EU regulation on certain fluorinated greenhouse gases may require to provide th...

Page 24: ...button to return to step 1 setting mode 1 H1P x OFF Adding refrigerant using the automatic refrigerant charging function is recommended When charging a system charging over the permissible quantity ca...

Page 25: ...BS unit indoor unit 13 Stop valve 14 Service port 15 Field piping 16 Refrigerant flow when pre charging through the liquid stop valve service port refer to step 3 on page 19 17 Refrigerant flow when...

Page 26: ...to confirm that charging is completed Record the amount that was added on the additional refrigerant charge label provided with the unit and attach it on the back side of the front panel Perform the p...

Page 27: ...c x x w x x x x w Slave unit 1 a c x x x x x x x c Slave unit 2 a c x x x x x x x x Error code P8 recharge operation Close valve A immediately and press the TEST OPERATION button once The operation w...

Page 28: ...rocedure from step 2 onwards Make sure to open the stop valves after charging the refrigerant Operating with the stop valves closed will damage the compressor BS1 MODE BS1 MODE WARNING ELECTRIC SHOCK...

Page 29: ...tch which is located on the outdoor unit PCB A1P The figure shows state of the LED indications when the unit is shipped from the factory Check operation procedure 1 Turn the power on for the outdoor u...

Page 30: ...state x normal w abnormal c under preparation or under test operation 2 Indication of low noise operation state x standard operation factory setting w operation 3 Indication of power consumption limi...

Page 31: ...arts During the test operation the refrigerant running sound or the magnetic sound of a solenoid valve may become loud and the LED display may change but these are not mal functions During the test op...

Page 32: ...gerant charge hose to the refrigerant charging port for additionaly charging 4 When the unit is not operating push the button until the additional refrigerant charging operation function A in setting...

Page 33: ...heavier than air Procedure for checking maximum concentration Check the maximum concentration level in accordance with steps 1 to 4 below and take whatever action is necessary to comply 1 Calculate th...

Page 34: ...P8 REMHQ12P8Y1B VRVIII System air conditioner 4PW48463 1A 16 DISPOSAL REQUIREMENTS Dismantling of the unit treatment of the refrigerant of oil and of other parts must be done in accordance with releva...

Page 35: ...3 2 6 6 6 6 23 18 9 8 1 2 4 3 5 13 14 15 10 7 12 19 2 1 24 6 11 16 17 15 6 5 10 11 12 7 4 9 16 17 18 3 8 13 14 2 2 1 1 9 6 6 6 6 6 6 6 6 6 6 6 6 6 6 6 6 6 6 6 6 6 6 6 6 6 6 6 6 6 6 6 6 6 6 6 6 6 6 6 6...

Page 36: ...4PW48463 1A Copyright Daikin...

Reviews: