background image

REYQ8~16P8Y1B
VRVIII System air conditioner
4PW39996-1A

Installation manual

1

C

ONTENTS

Page

1. Introduction ................................................................................1

1.1. Indoor capacity range .................................................................. 2
1.2. Standard supplied accessories.................................................... 2
1.3. Optional accessories ................................................................... 2
1.4. Technical and Electrical specifications......................................... 2

2. Main components.......................................................................2
3. Selection of location ...................................................................3
4. Inspecting and handling the unit ................................................4
5. Unpacking and placing the unit ..................................................4
6. Refrigerant piping.......................................................................4

6.1. Installation tools ........................................................................... 5
6.2. Selection of piping material.......................................................... 5
6.3. Pipe connection ........................................................................... 5
6.4. Connecting the refrigerant piping................................................. 5
6.5. Protection against contamination when installing pipes .............. 6
6.6. Example of connection ................................................................ 7

7. Leak test and vacuum drying .....................................................9
8. Field wiring .................................................................................9

8.1. Internal wiring – Parts table ....................................................... 10
8.2. Optional parts connector ........................................................... 10
8.3. Power circuit and cable requirements ........................................ 11
8.4. General cautions........................................................................ 11
8.5. System examples ...................................................................... 11
8.6. Leading power line and transmission line .................................. 12
8.7. Field line connection: transmission wiring.................................. 12
8.8. Field line connection: power wiring ............................................ 13
8.9. Wiring example for wiring inside unit ......................................... 14

9. Pipe insulation..........................................................................14

10. Checking of unit and installation conditions .............................14
11. Charging refrigerant .................................................................15

11.1. Important information regarding the refrigerant used ................ 15
11.2. Precautions when adding R410A .............................................. 15
11.3. Stop valve operation procedure ................................................. 15
11.4. How to check how many units are connected............................ 16
11.5. Additional refrigerant charge...................................................... 16
11.6. Procedure for inputting the additional refrigerant 

charge weight into the PCB ....................................................... 19

11.7. Checks after adding refrigerant ................................................. 20

12. Before operation.......................................................................20

12.1. Service precautions ................................................................... 20
12.2. Checks before initial start-up ..................................................... 21
12.3. Field setting ............................................................................... 21
12.4. Test operation ............................................................................ 23
12.5. Final check after installation ...................................................... 24

13. Service mode operation ...........................................................25
14. Additional refrigerant charging method ....................................25
15. Caution for refrigerant leaks.....................................................26
16. Disposal requirements .............................................................26

1.

I

NTRODUCTION

This installation manual concerns VRV inverters of the Daikin REYQ-P
series. These units are designed for outdoor installation and used for
cooling and heat pump applications. The REYQ8~16P system is a single
outdoor system and can not be combined with other outdoor units in a
multi outdoor system. This unit has rated cooling capacities ranging from
22.4 to 45.0 kW and rated heating capacities ranging from 25.0 to
50.0 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
when combined with the REYQ-P system.

The REYQ-P units can be combined with Daikin VRV indoor units for
air conditioning purposes suitable for R410A.

The present installation manual describes the procedures for
unpacking, installing and connecting the REYQ-P units. Installation
of the indoor units is not described in this manual. Always refer to the
installation manual supplied with these units for their installation.

REYQ8P8Y1B

REYQ14P8Y1B

REYQ10P8Y1B

REYQ16P8Y1B

REYQ12P8Y1B

VRVIII System air conditioner

Installation manual

READ THIS MANUAL ATTENTIVELY BEFORE STARTING
UP THE UNIT. DO NOT THROW IT AWAY. KEEP IT IN
YOUR FILES FOR FUTURE REFERENCE.

IMPROPER INSTALLATION OR ATTACHMENT OF
EQUIPMENT OR ACCESSORIES COULD RESULT IN
ELECTRIC SHOCK, SHORT-CIRCUIT, LEAKS, FIRE OR
OTHER DAMAGE TO THE EQUIPMENT. BE SURE ONLY
TO USE ACCESSORIES MADE BY DAIKIN WHICH ARE
SPECIFICALLY DESIGNED FOR USE WITH THE
EQUIPMENT AND HAVE THEM INSTALLED BY A
PROFESSIONAL.

DAIKIN EQUIPMENT IS DESIGNED FOR COMFORT
APPLICATIONS. FOR USE IN OTHER APPLICATIONS,
PLEASE CONTACT YOUR LOCAL DAIKIN DEALER.

IF UNSURE OF INSTALLATION PROCEDURES OR USE,
ALWAYS CONTACT YOUR DEALER FOR ADVICE AND
INFORMATION.

THIS AIR CONDITIONER COMES UNDER THE TERM
"APPLIANCES NOT ACCESSIBLE TO THE GENERAL
PUBLIC".

The refrigerant R410A requires strict cautions for keeping
the system clean, dry and tight.

Clean and dry
Foreign materials (including mineral oils such as
SUNISO oil or moisture) should be prevented from
getting mixed into the system.

Tight
R410A does not contain any chlorine, does not
destroy the ozone layer and does not reduce the
earth's protection against harmful ultraviolet radiation.
R410A can contribute slightly to the greenhouse
effect if it is released. Therefore we should take
special attention to check the tightness of the
installation.

Read 

"6. Refrigerant piping" on page 4

 carefully and follow

these procedures correctly.

Since design pressure is 4.0 MPa or 40 bar (for R407C
units: 3.3 MPa or 33 bar), pipes of larger wall thickness
may be required. The wall thickness of piping must be
carefully selected, refer to paragraph 

"6.2. Selection  of

piping material" on page 5

 for more details.

Summary of Contents for VRVIII REYQ-P8

Page 1: ...INSTALLATION MANUAL REYQ8P8Y1B REYQ10P8Y1B REYQ12P8Y1B REYQ14P8Y1B REYQ16P8Y1B System air conditioner...

Page 2: ...m e 100 mm f 500 mm 4 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 1500 500 13 2 1 6 3 4 6 5 6 9 10 7 8 2 1 A B C 5 3 2 1 6 4 3 4 2 b a c d A C B D a e b d e A...

Page 3: ...jeidemme mukaisesti 14 za p edpokladu e jsou vyu v ny v souladu s na imi pokyny odpov daj n sleduj c m norm m nebo normativn m dokument m 15 u skladu sa slijede im standardom ima ili drugim normativni...

Page 4: ...ujam temperat ra TS TSmin Minim l temperat ra zem spiediena pus L C TSmax Pies tin t temperat ra saska ar maksim lo pie aujamo spiedienu PS M C Dzesin t js N Spiediena dro bas ier ces iestat ana P bar...

Page 5: ...ging from 25 0 to 50 0 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 ca...

Page 6: ...he Engineering Data Book Outdoor unit Total capacity of indoor units REYQ8 100 260 REYQ10 125 325 REYQ12 150 390 REYQ14 175 455 REYQ16 200 520 NOTE If the total capacity of the connected indoor units...

Page 7: ...nt concentration from exceeding allowable 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...

Page 8: ...foundation dimension 7 Distance between foundation bolt holes X Not allowed O Allowed units mm Prepare a water drainage channel around the foundation to drain waste water from around the unit If the...

Page 9: ...the pipe size nearest to the required size use the suitable adapters for the change over from inch to mm pipes field supply 6 3 Pipe connection Be sure to perform a nitrogen blow when brazing and to r...

Page 10: ...the system Great caution is needed when passing copper tubes through walls Block all gaps in the holes for passing out piping and wiring using sealing material field supply The capacity of the unit wi...

Page 11: ...outdoor unit side choose from the following table in accordance with the capacity of the outdoor unit example refnet joint A How to select the refnet header Choose from the following table in accordan...

Page 12: ...igerant branch kit to indoor units is 40 m or less however it can be extended up to 90 m if all the following conditions are fulfilled Required conditions Example drawings It is necessary to increase...

Page 13: ...Valve B 13 Valve C 14 Outdoor unit 15 To BS unit or indoor unit 16 Stop valve 17 Service port 18 Field piping 19 Gas flow NOTE Make sure to perform leak test and vacuum drying using the service ports...

Page 14: ...2 liquid 2 H E liquid 2 R10 Resistor current sensor R31T R32T Thermistor discharge M1C M2C R50 R59 Resistor R90 Resistor current sensor R95 Resistor current limiting S1NPH Pressure sensor high S1NPL...

Page 15: ...to leaked electrical current which will have to be discharged with the grounding Be sure to install an earth leakage breaker One that can handle high frequency electrical noise This unit uses an inve...

Page 16: ...of the transmission wiring terminals 1 Electric wiring diagram Printed on the back of the electric component box lid 2 Power wiring and ground wiring inside conduit When the wiring is routed out throu...

Page 17: ...iquid pipe 2 High pressure low pressure gas pipe 3 Finishing tape 4 Suction gas pipe 5 Transmission wiring 6 Insulation material 1 Power supply 380 415 V 3 N 50 Hz 2 Earth leakage breaker 3 Fuse 4 Gro...

Page 18: ...6 Refrigerant piping on page 4 The electrical work 1 Make sure there is no faulty power wiring or loose nuts See 8 Field wiring on page 9 2 Make sure there is no faulty transmission wiring or loose nu...

Page 19: ...t 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 Charge the liquid refrigerant with t...

Page 20: ...tem charging over the permissible quantity can cause liquid hammer Always use protective gloves and protect your eyes when charging refrigerant When the refrigerant charging procedure is done or when...

Page 21: ...indoor temperature The unit will automatically select the cooling mode or heating mode for charging Outdoor temperature 0 C DB 43 C DB Indoor temperature 10 C DB 32 C DB Total indoor unit capacity 80...

Page 22: ...and may cause overcharging 7 Ready Press the button once within 5 minutes If the button is not pushed within 5 minutes P2 will be displayed on the remote controller Refer to 3 Remote controller malfun...

Page 23: ...e valve A and remove the refrigerant tank immediately after finishing the refrigerant charge operation The refrigerant charge port of these units have electric expansion valves that will close automat...

Page 24: ...x w w 20 95 x 100 w x w x w x x 21 100 x w x w x w x w NOTE If you get confused in the middle of the input process press the button to return to setting mode 1 initial state The H1P LED is off x Resum...

Page 25: ...tons LED state Throughout the manual the state of the LEDs is indicated as follows Setting the push button switch BS1 5 Function of the push button switch which is located on the outdoor unit PCB A1P...

Page 26: ...ormal 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 limitation set...

Page 27: ...seconds The H1P LED is on w Perform following steps 1 Press the button 3 times 2 Press the button once to confirm 3 Press the button in order to change the LED display to the following display 4 Press...

Page 28: ...iping length and correct the refrigerant charge level by recovering any excessive refrigerant with a refrigerant recovery machine Insufficient refrigerant E4 F3 Check if the additional refrigerant cha...

Page 29: ...pipe stop valve service port with the unit not operating refer to Pre charging on page 17 make sure to charge the remaining charging quantity using the following procedure 1 Turn the power of the ind...

Page 30: ...as the following calculate the volume of A B as a single room or as the smallest room 3 Calculating the refrigerant density using the results of the calculations in steps 1 and 2 above If the result o...

Page 31: ...N D UNIT TO OUT D UNIT TO IN D UNIT TO OUT D UNIT F1 F2 F1 F2 F1 F2 F1 F2 F1 F2 F1 F2 8 7 7 6 6 3 5 6 13 12 1 1 2 3 4 5 3 4 7 8 2 9 6 4 1 2 5 7 7 8 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...

Page 32: ...4PW39996 1A Copyright Daikin...

Reviews: