14
Model
MUH-GA50VB
Refrigerant piping length (one way)
Outdoor unit precharged
1,800
15m
160
20m
260
25m
360
7m
0
10m
60
ADDITIONAL REFRIGERANT CHARGE(R410A : g)
Calculation : Xg=20g/m ✕ (Refrigerant piping length (m)–7)
Model
MUH-GA60VB
Refrigerant piping length (one way)
Outdoor unit precharged
2,350
15m
160
20m
260
25m
360
7m
0
10m
60
Calculation : Xg=20g/m ✕ (Refrigerant piping length (m)–7)
Outdoor unit
precharged
2,400
0 165 440 715 990 1,265
Refrigerant piping length (one way)
15m10m7m
Model
MUH-GA80VB
20m
25m 30m
Calculation : Xg=55g/mo(Refrigerant piping length(m)-7)
Indoor
unit
wMax. Height
difference:
10m(MSH-GA50/GA60VB)/
15m(MSH-GA80VB)
A
Refrigerant Piping
Max. Length
w Height difference should be within 10m(MSH-GA50VB/GA60VB)/
15m(MSH-GA80VB) regardless of which unit, indoor or outdoor position is high.
Outdoor unit
MAX. HEIGHT DIFFERENCE
MAX. REFRIGERANT PIPING LENGTH
Model
Piping size O.D : mm
Refrigerant piping
Max. length : m
A
25
30
Gas
12.7
15.88
Liquid
6.35
9.52
MUH-GA50VB
MUH-GA60VB
MUH-GA80VB
OB368B-1.qxp 10.5.25 9:14 AM Page 14