Installation manual
1
REYQ8~16M8W1B
VRVII System air conditioner
4PW23712-1
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 .................................................................. 2
4. Inspecting and handling the unit................................................ 3
5. Unpacking and placing the unit ................................................. 3
6. Refrigerant piping ...................................................................... 4
6.1. Selection of piping material ............................................................. 4
6.2. Connecting the refrigerant piping .................................................... 4
6.3. Example of connection .................................................................... 7
6.4. Leak test and vacuum drying .......................................................... 9
6.5. Pipe insulation ............................................................................... 10
6.6. Additional refrigerant charge ......................................................... 10
7. Field wiring .............................................................................. 11
7.1. Internal wiring - Parts table............................................................ 11
7.2. Power circuit and cable requirements............................................ 12
7.3. General.......................................................................................... 12
7.4. Examples....................................................................................... 13
8. Before operation ...................................................................... 16
8.1. Service precautions....................................................................... 16
8.2. Checks before initial start-up ......................................................... 16
8.3. Field setting ................................................................................... 16
8.4. Test operation ................................................................................ 18
9. Service mode operation........................................................... 19
10. Caution for refrigerant leaks .................................................... 20
11. Disposal requirements............................................................. 20
1. I
NTRODUCTION
This installation manual concerns VRV inverters of the Daikin
REYQ-M series. These units are designed for outdoor installation
and used for cooling and heatpump applications. The REYQ-M-
series can be combined from 5 main units and has nominal cooling
capacities ranging from 22.4 to 134
kW and nominal heating
capacities ranging from 25.0 to 150 kW.
The REYQ-M units can be combined with Daikin VRV indoor
units for air conditioning purposes, and suitable for R-410A.
The present installation manual describes the procedures for
unpacking, installing and connecting the REYQ-M 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.
REYQ8~16M8W1B
VRVII 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.
The refrigerant R-410A 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
R-410A does not contain any chlorine, does not
destroy the ozone layer, and does not reduce the
earth's protection against harmful ultraviolet radiation.
R-410A 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 3.8 MPa or 38 bar (for R-407C
units: 3.3 MPa or 33 bar), pipes of larger wall thickness may
be required. Refer to paragraph
"6.1. Selection of piping
material" on page 4
.
