Charge Calculations - Mitsubishi Electric MSZ-GE06NA-8 Engineering Manual

3-10. CHARGE CALCULATIONS

(1) ADDITIONAL REFRIGERANT CHARGE (R410A: oz.)
NOTE: Refrigerant piping exceeding 25 ft. requires additional refrigerant charge according to the calcualation.
Outdoor unit
Model
precharged
MUZ-GE09NA 1 lb. 12 oz.
MUZ-GE12NA
2 lb. 9 oz.
MUZ-GE15NA-1
NOTE: Calculation: X oz. = 1.62/5 oz./ft (Refrigerant piping length (ft) - 25)
Outdoor unit
Model
precharged
MUZ-GE15NA-1
NOTE: Calculation: X oz. = 1.08/5 oz./ft (Refrigerant piping length (ft) - 25)
NOTE: Refrigerant piping exceeding 33 ft. requires additional refrigerant charge according to the calculation.
Model
precharged
MUZ-GE24NA
NOTE: Calculation: X oz. = 2.96/5 oz./ft (Refrigerant piping length (ft) - 33)
Due to continuing improvement, above specification may be subject to change without notice.
© 2013 Mitsubishi Electric US, Inc.
25ft
0
25 30
3 lb. 7 oz. 0 1.08
Outdoor
unit
33 40
4 lb. 3 oz. 0 4.14
2013 M-Series - MSZ-GE Heat Pump Systems (June 2013)
Refrigerant piping length (one way): ft.
30ft 40ft 50ft
1.62 4.86 8.10
Refrigerant piping length (one way): ft.
40 50 60
3.24 5.40 7.56
Refrigerant piping length (one way): ft.
50 60 70
10.06 15.98 21.90
60ft 65ft
11.34 12.96
70 80 90 100
9.72 11.88 14.04 16.20
80 90 100
27.82 33.74 39.66
MSZ-GE-37