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Installation manual

17

R REMQ10~16P8 + REMHQ12P8Y1B

VRVIII System air conditioner

4PW48463-1A

8.9.

Wiring example for wiring inside unit

See 

figure 22

.

9.

P

IPE

 

INSULATION

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
branch kits entirely.

Be sure to insulate liquid and gas piping (for all units).

Use heat resistant polyethylene foam which can withstand a
temperature of 70°C for liquid side piping and polyethylene foam
which can withstand a temperature of 120°C for gas side piping.

Reinforce the insulation on the refrigerant piping according to
the installation environment.

Condensation might form on the surface of the insulation.

If there is a possibility that condensation on the stop valve might
drip down into the indoor unit through gaps in the insulation and
piping because the outdoor unit is located higher than the indoor
unit, this must be prevented by sealing up the connections. See

figure 7

.

10. C

HECKING

 

OF

 

UNIT

 

AND

 

INSTALLATION

 

CONDITIONS

Be sure to check the following:

The piping work

1

Make sure piping size is correct.

See 

"6.2. Selection of piping material" on page 5

.

2

Make sure insulation work is done.

See 

"9. Pipe insulation" on page 17

.

3

Make sure there is no faulty refrigerant piping.

See 

"6. Refrigerant piping" on page 5

.

The electrical work

1

Make sure there is no faulty power wiring or loose nuts.

See 

"8. Field wiring" on page 12

.

2

Make sure there is no faulty transmission wiring or loose nuts.

See 

"8. Field wiring" on page 12

.

3

Make sure the insulation resistance of the main power circuit is
not deteriorated.

Measure the insulation resistance and check if the value is in
accordance with relevant local and national regulations.

11. C

HARGING

 

REFRIGERANT

The outdoor unit is factory charged, but depending on the length of
the piping when installed, the outdoor unit may require additional
charging.

For charging the additional refrigerant 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 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

+

➁ 

the total refrigerant charge

on the fluorinated greenhouse gases label supplied with the product.

1

Power wiring

2

Wiring between units

3

Clamp to the electric box with field supplied clamps.

4

When routing out the power/ground wires from the right side:

5

When routing the remote control cord and inter-unit wiring, secure 
clearance of 50 mm or more from the power wiring. Ensure that 
the power wiring does not contact any heated sections ( 

 ).

6

Clamp to the back of the column support with field supplied 
clamps.

7

When routing out the inter-unit wirings from the opening for piping 
or from the front:

8

When routing out the power/ground wires from the front:

9

When routing out the power/ground wires from the left side:

10

Grounding wire

11

When wiring, pay attention not to detach the acoustic insulators 
from the compressor.

12

Power supply

13

Fuse

14

Earth leakage breaker

15

Ground wire

Wire so that the ground wiring does not come into contact
with the compressor lead wiring. If they touch, this may
have an adverse effect on other devices.

Ambient temperature

Humidity

Minimum thickness

30°C

75% to 80% RH

15 mm

>30°C

80 RH

20 mm

1

Insulation material

2

Caulking, etc.

Be sure to insulate local pipes, as touching them can
cause burns.

Refrigerant cannot be charged until all field wiring and field
piping has been completed.

Refrigerant may only be charged after performing the leak
test and the vacuum drying.

The refrigerant charge of the system must be less than
100 kg. This means that in case the calculated refrigerant
charge is equal to or more than 95 kg you must divide your
multiple outdoor system into smaller independent systems,
each containing less than 95 kg refrigerant charge.

For factory charge, refer to the unit name plate.

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...

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