4 Installation
Installation manual
7
RXA42+50A2V1B
R32 split series
3P517827-2 – 2017.12
>300
>250
>100
(mm)
a
a
Maximum snowfall height
4.1.2
To install the outdoor unit
4× M8/M10
4.1.3
To provide drainage
NOTICE
If the unit is installed in a cold climate, take adequate
measures so that the evacuated condensate CANNOT
freeze.
INFORMATION
For information on the available options, contact your
dealer.
NOTICE
Provide at least 300 mm of free space below the unit.
Additionally, make sure the unit is positioned at least
100 mm above the expected level of snow.
1
Use a drain plug for drainage.
2
Use a Ø16 mm hose (field supply).
b
c
d
a
a
Drain port
b
Bottom frame
c
Drain plug
d
Hose (field supply)
4.1.4
To prevent the outdoor unit from falling
over
In case the unit is installed in places where strong wind can tilt the
unit, take following measure:
1
Prepare 2 cables as indicated in the following illustration (field
supply).
2
Place the 2 cables over the outdoor unit.
3
Insert a rubber sheet between the cables and the outdoor unit
to prevent the cable from scratching the paint (field supply).
4
Attach the cable’s ends. Tighten those ends.
4.2
Connecting the refrigerant piping
DANGER: RISK OF BURNING
4.2.1
Guidelines when connecting the
refrigerant piping
Piping size
(mm)
Tightening
torque (N•m)
Flare
dimensions (A)
(mm)
Flare shape
(mm)
Ø6.4
15~17
8.7~9.1
R=0.4~0.8
45° ±2
90°±2
A
Ø12.7
50~60
16.2~16.6
4.2.2
Using the stop valve and service port
CAUTION
Do NOT open the valves before flaring is complete. This
would cause refrigerant gas leakage.
c
d
a
b
a
Service port and service port cap
b
Valve stem
c
Field piping connection
