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R REMQ10~16P8 + REMHQ12P8Y1B

VRVIII System air conditioner

4PW48463-1A

Installation manual

2

1.1.

Combination

The indoor units can be installed in the following range.

Always use appropriate indoor units compatible with R410A.
To  learn which models of indoor units are compatible with
R410A, refer to the product catalogs.

Total capacity/quantity of indoor units

1.2.

Standard supplied accessories

See location 1 in 

figure 21

  for reference to where following

accessories are supplied with the unit.

See location 2 in 

figure 21

  for reference to where following

accessories are supplied with the unit.

1.3.

Optional accessories

To  install the above outdoor units, the following optional parts are
also required.

Refrigerant branching kit (for R410A only: Always use an
appropriate kit dedicated for your system.)

Outdoor unit multi connection piping kit (For R410A only: Always
use an appropriate kit dedicated for your system.)

To select an optimum refrigerant branching kit, refer to 

"6. Refrigerant

piping" on page 5

.

1.4.

Technical and Electrical specifications

Refer to the Engineering Data Book for the complete list of
specifications.

2.

M

AIN

 

COMPONENTS

For main components and function of the main components, refer to
the Engineering Data Book.

Standard combinations of outdoor units

Total capacity 

of indoor units

REYQ18

= REMQ8+REMQ10

225~585

REYQ20

= REMQ8+REMQ12

250~650

REYQ22

= REMQ12

275~715

REYQ24

= REMQ12

300~780

REYQ26

= REMQ16

325~845

REYQ28

= REMQ16

350~910

REYQ30

= REMQ16

375~975

REYQ32

= REMQ16

400~1040

REYQ34

= REMQ8+REMQ16

425~1105

REYQ36

= REMQ8+REMQ16

450~1170

REYQ38

= REMQ16

475~1235

REYQ40

= REMQ16

500~1300

REYQ42

= REMQ16

525~1365

REYQ44

= REMQ16

550~1430

REYQ46

= REMQ16

575~1495

REYQ48

= REMQ16

600~1560

Standard combinations of outdoor units

Total capacity 

of indoor units

REYHQ16

= REMQ8+REMQ8

200~520

REYHQ20

= REMQ8+REMHQ12

250~650

REYHQ22

= REMHQ12

275~715

REYHQ24

= REMHQ12

300~780

NOTE

When installing a multi outdoor system:

with  2  units:  BHFQ23P907  outdoor unit multi
connection piping kit is required.

with 3 units: BHFQ23P1357 outdoor unit multi
connection piping kit is required.

There are restrictions on the refrigerant pipe
connection order between outdoor units during
installation in case of a multiple outdoor unit
system.
Install according to the following restrictions.
The capacities of outdoor units A, B, and C must
fulfill the following restriction conditions: A

B

C.

If the total capacity of the connected indoor units
exceeds the capacity of the outdoor unit, cooling
and heating performance may drop when running
the indoor units.
Refer to the section on performance charac-
teristics in the Engineering Data Book for details.

A

B

C

1 2

3

1

To indoor units

2

Multi outdoor unit connection piping kit (first 
branch)

3

Multi outdoor unit connection piping kit 
(second branch)

Installation manual 

1x

Operation manual 

1x

Additional refrigerant charge label

1x

Installation information sticker

1x

Fluorinated greenhouse gases label

1x

Multilingual fluorinated greenhouse gases label

1x

Unit 
type

Unit 
type

Suction gas side accessory pipe

HP/LP

(a)

 gas side accessory pipe

(a) HP/LP = High pressure/low pressure

8+10

(1)  1x

8~12

(1)  1x

(2)  1x

14+16

(1)  1x

12~16

(1)  1x

(2)  1x

(2)  1x

Equalizer side accessory pipe

Liquid side accessory pipe

8~16

(1)  1x

8~16

(1)  1x

(2)  1x

Accessory joint (angle of 90°)

(2)  1x

8~16

(1)  1x

(2)  2x

Refnet header

Refnet joint

3 pipes

2 pipes

3 pipes

2 pipes

KHRQ23M29H

KHRQ22M29H

KHRQ23M20T

KHRQ22M20T

KHRQ23M64H

KHRQ22M64H

KHRQ23M29T9

KHRQ22M29T

KHRQ23M75H

KHRQ22M75H

KHRQ23M64T

KHRQ22M64T

KHRQ23M75T

KHRQ22M75T

Number of outdoor units connected

2

3

BHFQ23P907

BHFQ23P1357

OD 22.2

OD 19.1

OD 22.2

OD 22.2

OD 28.6

OD 22.2

OD 28.6

OD 19.1

Ø25.4

Ø19.1

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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