Max. Refrigerant Piping Length; Additional Refrigerant Charge - Mitsubishi Electric Mr.Slim MUZ-GC25NA - C1 Service Manual

MAX. REFRIGERANT PIPING LENGTH and MAX. HEIGHT DIFFERENCE
Model
MUZ-GC25NA
MUZ-GC35NA
MUZ-GC50NA
MUZ-GC60NA
MUZ-GC71NA
ADDITIONAL REFRIGERANT CHARGE (R410A : g)
Outdoor unit
Model
precharged
MUZ-GC25NA
750
MUZ-GC35NA
Outdoor unit
Model
precharged
MUZ-GC50NA 1,500
MUZ-GC60NA 1,800
Outdoor unit
Model
precharged
MUZ-GC71NA 2,000
NOTE : Refrigerant piping exceeding 7 m requires additional refrigerant charge according to the calculation.
Refrigerant piping : m
Max. Length
A
20
30
Indoor
unit
Max. Height
difference
B
Max. Length
5 m 6 m 7 m
0 0 0
7 m
0
7 m
0
Max. Height difference
B
12
15
A
Outdoor unit
Refrigerant piping length (one way)
8 m 9 m 10 m
90 120 150
Calculation : X g = 30 g/m × (Refrigerant piping length (m) – 5)
Refrigerant piping length (one way)
10 m 15 m
60 160
Calculation : X g = 20 g/m × (Refrigerant piping length (m) – 7)
Refrigerant piping length (one way)
10 m 15 m
165 440
Calculation : X g = 55 g/m × (Refrigerant piping length (m) – 7)
17
Piping size O.D : mm
Gas
9.52
12.7
15.88
11 m 12 m 13 m 14 m
180 210 240 270
20 m 25 m
260 360
20 m 25 m
715 990
Liquid
6.35
9.52
15 m 20 m
300 450
30 m
460
30 m
1,265