Installation, 1 piping length & refrigerant charge, Refrigerant charge – LG LM50 2004-E1 User Manual
Page 70
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2004 Product Data 69
14. Installation
14.1 Piping Length & Refrigerant Charge
The maximun allowable level and piping length
7.5m
It does not matter which unit is higher.
7.5m
Indoor Unit
A
B
C
D
[Outdoor Unit]
Indoor Unit Capacity
Pipe Size
Rated
Max
Additional
(Btu/h)
Gas
Liquid
Length Length
Refrigerant
7k, 9k, 12k
3/8"(9.52mm) 1/4"(6.35mm)
7.5m
15m
30g/m
18k, 24k
1/2"(12.7mm) 1/4"(6.35mm)
7.5m
15m
30g/m
Refrigerant Charge
❋ Extra refrigerant = (Extended length - Rated length) x Additional refrigerant
Model
Standard Length
Max piping length each indoor unit
Max total
[Outdoor Unit]
A, B, C, D
A
B
C
D
piping length
A2UC/H146FA0
7.5m
15m
15m
-
-
30m(A+B)
A2UC/H186FA0
7.5m
15m
15m
-
-
30m(A+B)
A3UC/H216FA0
7.5m
15m
15m
15m
-
45m(A+B+C)
A4UC/H306FA0
7.5m
15m
15m
15m
15m
60m(A+B+C+D)
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