Service manual

14
Refrigerant Piping
Max. length
A
Max. Height
difference
B
Indoor
unit
Outdoor unit
MAX. REFRIGERANT PIPING LENGTH and MAX. HEIGHT DIFFERENCE
Model
Piping size O.D : mm
Refrigerant piping : m
Max. length
A
Max. Height
difference
B
1530
Gas
12.7
15.88
Liquid
6.35
9.52
MUZ-GA50VA
MUZ-GA60VA
MUZ-GA71VA
Model
MUZ-GA50VA
MUZ-GA60VA
Refrigerant piping length (one way)
Outdoor unit
precharged
1,800
15m
160
20m
260
25m
360
30m
460
7m
0
10m
60
ADDITIONAL REFRIGERANT CHARGE(R410A : g)
Calculation : Xg=20g/m ✕ (Refrigerant piping length (m)–7)
Outdoor unit
precharged
2,000
0 165 440 715 990 1,265
Refrigerant piping length (one way)
15m10m7m
Model
MUZ-GA71VA
20m
25m 30m
Calculation : Xg=55g/mo(Refrigerant piping length(m)-7)
NOTE : Refrigerant piping exceeding 7m requires additional refrigerant charge according to the calculation.
OB389F--1qxp 07.9.3 5:07 PM Page 14