Mitsubishi Electric MUZ-GA50VA-E1 Service Manual page 14

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