Confirm The Refrigerant - LG LA121HPMI Service Manual

Installation

Confirm The Refrigerant

1. Check the quality label on the indoor and outdoor unit.
2. Make certain that the refrigerant is R-410A.
NOTICE
THIS PRODUCT CONTAINS R-410A REFRIGERANT
1) Different compressor oil
- R-410A(Polyol ester) / R-22(Mineral).
- Do not mix the existing mineral oil.
- Do not apply used pipe, tools and gauges covered with the existing mineral oil.
2) Absorption of moisture
-Compressor's oil has the high absorption rate of moisture.
3) Composition
- R-410A(R32:R125=50:50wt%).
NOTE: Never mix with other refrigerants
Example : Split type 12,000 Btu/h
R-410A
R-22
4) High pressure.
- 1.6 times higher than R-22.
- High Pressure refrigerant may cause personal injury.
Boiling Pt.(°C)
R-410A -51.4
R-22 -40.8
Do not handle the pipe by yourself (customer) High-pressure refrigerant may cause personal injury.
- manifold gauge ,charging and any piping tools must be dedicated to R-410A systems.
14 Room Air Conditioner
120
100
93
100
80
60
40
20
0
100% 70%
0% 30%
Vapor pressure(25°C)(kg f/cnf)
15.9
89
84
50% 30%
50% 70% 100%
Vapor density(25°C)(kg/m
9.6
76
0%
2 )
64
44.4