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Installation method
No.
1
Preparation of tools and installation parts
2
Flaring the pipes
3
Pipe bending
Connection of installation parts (elbows,
4
socket etc)
5
Tighten the flare nut (outdoor)
6
Blowing the pipings
7
Tighten the flare nut (indoor)
Check a gas-leakage of the connecting
8
part of the pipings.
Vacuum drying of the piping and indoor
9
unit
Open the 3-way (liquid side) and 3-way
10
(gas side) valves.
11
Form the pipings
12
Checking the drainage (indoor unit)
Connecting the cable between outdoor
13
and indoor unit
14
Connecting the main cable to outdoor unit
Cooling operation (Use the remote control
15
or display of the indoor unit)
Installation works
INSTALLATION
Descriptions
Preparation of installation
To insert the flare nuts, mounted on the
connection parts of both indoor and out-
door unit, onto the copper pipes.
To reduce the flow resistance of refriger-
ant.
Connection of long piping
Connecting the pipings of the outdoor
unit.
To remove dust and scale in working.
Connecting the pipings of the indoor unit.
The air which contains moisture and
which remains in the refrigeration cycle
may cause a malfunction on the compres-
sor
To prevent heat loss and sweat
To ensure if water flow drain hose of in-
door unit.
Preparation of the operating
9
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