LG APNC488TLA0, Installation Manual

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INSTALLATION OF UNIT
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Installation Method
No. Installation works Descriptions
1 Preparation of tools and installation parts Preparation of installation
2 Flaring the pipes
To insert the flare nuts, mounted on the con-
nection parts of both indoor and outdoor unit,
onto the copper pipes.
3 Pipe bending
To insert the flare nuts, mounted on the con-
nection parts of both indoor and outdoor unit,
onto the copper pipes.
4
Connection of installation parts (elbows,
socket etc)
To reduce the flow resistance of refrigerant.
5 Tighten the flare nut (outdoor) Connection of long piping
6 Blowing the pipings Connecting the pipings of the outdoor unit.
7 Tighten the flare nut (indoor) To remove dust and scale in working.
8
Check a gas-leakage of the connecting part of
the pipings.
Connecting the pipings of the indoor unit.
9 Vacuum drying of the piping and indoor unit
10
Open the 3-way (liquid side) and 3-way (gas
side) valves.
The air which contains moisture and which re-
mains in the refrigeration cycle may cause a
malfunction on the compressor
11 Form the pipings
12 Checking the drainage (indoor unit) To prevent heat loss and sweat
13
Connecting the cable between outdoor and
indoor unit
To ensure if water flow drain hose of indoor
unit.
14 Connecting the main cable to outdoor unit
Preparation of the operating
15
Supply the power to the crankcase heater
(Before the operating the unit)
16
Cooling operation (Use the remote control or
display of the indoor unit)
To prevent the liquid back to the compressor.
(Heat pump only)