4 Preparation
Installation and operation manual
7
8T7Y1B
VRV IV compressor unit for indoor installation
4P408443-1B – 2016.04
a
Cable
b
Cable tie
c
PCB
X
Not needed
2
Remove the mounting plate from the PCB.
1
1
2
3
Mount the PCB.
X1M
X1A
A B C
A1P
DS1
X66A
4
Connect the cable.
X1A
A1P
DS1
X66A
X1M
5
Connect the cool/heat selector switch. Tightening torque X1M
(A/B/C): 0.53~0.63 N•m
KRC19-26A
X1A
A B C
A B C
X1M
6
Fix the cables with cable ties.
7
Turn ON the DIP switch (DS1‑1).
1 2 3 4
OFF
X66A
ON
DS1
A1P
8
Perform a test run. See the "Commissioning" chapter.
4
Preparation
4.1
Preparing installation site
4.1.1
Installation site requirements of the
compressor unit
▪
Service space.
Mind the following requirements:
≥
10
a
≥
10
≥10
≥
500
≥
10
(mm)
b
a
Top view
b
Front view
CAUTION
Appliance not accessible to the general public, install it in a
secured area, protected from easy access.
These units (compressor unit, heat exchanger unit and
indoor units) are suitable for installation in a commercial
and light industrial environment.
NOTICE
This is a class A product. In a domestic environment this
product may cause radio interference in which case the
user may be required to take adequate measures.
4.2
Preparing refrigerant piping
4.2.1
Refrigerant piping requirements
NOTICE
Refrigerant R410A requires strict cautions for keeping the
system clean and dry. Foreign materials (including mineral
oils or moisture) should be prevented from getting mixed
into the system.
NOTICE
The piping and other pressure-containing parts shall be
suitable for refrigerant. Use phosphoric acid deoxidised
seamless copper for refrigerant.
Summary of Contents for VRV IV RKXYQ8T7Y1B
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