Mitsubishi Electric MSZ-D30NA Service Manual page 153

MAX. REFRIGERANT PIPING LENGTH and MAX. HEIGHT DIFFERENCE
Model
MUZ-GE09/12/15NA/NA2
MUZ-GE09/12/15NAH/NAH2
MUY-GE09/12/15NA/NA2
MUZ-GE18NA
MUZ-GE18NAH
MUY-GE18NA
MUZ-GE24NA
MUY-GE24NA
ADDITIONAL REFRIGERANT CHARGE (R410A: oz.)
NOTE: Refrigerant piping exceeding 25 ft. requires additional refrigerant charge according to the calculation.
Model
MUZ-GE09NA/NA2
MUZ-GE09NAH/NAH2
MUY-GE09NA/NA2
MUZ-GE12NA/NA2
MUZ-GE12NAH/NAH2
MUY-GE12NA/NA2
MUZ-GE15NA/NA2
MUZ-GE15NAH/NAH2
MUY-GE15NA/NA2
Outdoor unit
Model
precharged
MUZ-GE18NA
MUZ-GE18NAH 3 lb. 7 oz.
MUY-GE18NA
NOTE: Refrigerant piping exceeding 33 ft. requires additional refrigerant charge according to the calculation.
Outdoor unit
Model
precharged
MUZ-GE24NA
4 lb. 3 oz.
MUY-GE24NA
OBH549G
Refrigerant piping: ft.
Max. Length
A
65
100
100
Indoor
unit
Max. Height
difference
B
Max. Length
Outdoor unit
precharged
25
1 lb. 12 oz.
0
2 lb. 9 oz.
Calculation: X oz. = 1.62/5 oz. / ft. × (Refrigerant piping length (ft.) - 25)
25 30
0 1.08
Calculation: X oz. = 1.08/5 oz. / ft. × (Refrigerant piping length (ft.) - 25)
33 40
0 4.14
Calculation: X oz. = 2.96/5 oz. / ft. × (Refrigerant piping length (ft.) - 33)
Max. Height difference
B
40
50
50
A
Outdoor unit
Refrigerant piping length (one way): ft.
30 40
1.62 4.86
Refrigerant piping length (one way): ft.
40 50 60
3.24 5.40 7.56
Refrigerant piping length (one way): ft.
50 60
10.06 15.98 21.90
27
Piping size O.D: in.
Gas
3/8 (GE09/12)
1/2 (GE15)
1/2
5/8
50 60
8.10 11.34
70 80 90
9.72 11.88 14.04
70 80 90
27.82 33.74
Liquid
1/4
3/8
65
12.96
100
16.20
100
39.66