Daikin REMQ8P9Y1B, Installation Manual

Page: 6 / 36

Installation manual
1
R REMQ10~16P8 + REMHQ12P8Y1B
VRVIII System air conditioner
4PW48463-1A
C
ONTENTS
Page
1. Introduction................................................................................ 1
1.1. Combination................................................................................. 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 ...................................................................... 5
6.1. Installation tools ........................................................................... 5
6.2. Selection of piping material.......................................................... 5
6.3. Pipe connection ........................................................................... 5
6.4. Connecting the refrigerant piping................................................. 6
6.5. Protection against contamination when installing pipes .............. 8
6.6. Example of connection ................................................................ 9
7. Leak test and vacuum drying................................................... 11
8. Field wiring .............................................................................. 12
8.1. Internal wiring – Parts table ....................................................... 12
8.2. Optional parts connector............................................................ 13
8.3. Power circuit and cable requirements ........................................ 13
8.4. General cautions........................................................................ 14
8.5. System examples....................................................................... 14
8.6. Leading power line and transmission line .................................. 15
8.7. Field line connection: transmission wiring.................................. 15
8.8. Field line connection: power wiring ............................................ 16
8.9. Wiring example for wiring inside unit ......................................... 17
9. Pipe insulation ......................................................................... 17
10. Checking of unit and installation conditions............................. 17
11. Charging refrigerant................................................................. 17
11.1. Important information regarding the refrigerant used ................ 17
11.2. Precautions when adding R410A .............................................. 18
11.3. Stop valve operation procedure ................................................. 18
11.4. How to check how many units are connected............................ 18
11.5. Additional refrigerant charge...................................................... 19
11.6. Procedure for inputting the additional refrigerant charge weight
into the PCB............................................................................... 22
11.7. Checks after adding refrigerant.................................................. 23
12. Before operation ...................................................................... 23
12.1. Service precautions ................................................................... 23
12.2. Checks before initial start-up ..................................................... 24
12.3. Field setting ............................................................................... 24
12.4. Test operation ............................................................................ 26
12.5. Final check after installation....................................................... 27
13. Service mode operation........................................................... 27
14. Additional refrigerant charging method.................................... 27
15. Caution for refrigerant leaks .................................................... 28
16. Disposal requirements............................................................. 29
The English text is the original instruction. Other languages are
translations of the original instructions.
1. I
NTRODUCTION
This installation manual concerns VRV inverters of the Daikin
REY(H)Q-P series. These units are designed for outdoor installation
and used for cooling and heat pump applications. The REYQ18~48P
system is a multi outdoor system composed of 2 or 3 REMQ8~16P
outdoor units with rated cooling capacities ranging from 50.4 to
135 kW and rated heating capacities ranging from 56.5 to 150 kW.
The REYHQ system is a multi outdoor system composed of 2x
REMQ8 or 1x REMHQ and 1x REMQ or 2x REMHQ outdoor units
with rated cooling capacities ranging from 45 kW to 67 kW and rated
heating capacities ranging from 50 kW to 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
when combined with the REYQ-P system.
The REM(H)Q-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 REM(H)Q-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.
REMQ8P9Y1B REMHQ12P8Y1B
REMQ10P8Y1B REMQ14P8Y1B
REMQ12P8Y1B REMQ16P8Y1B
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 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.
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 5 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.