Charge Calculations; Additional Refrigerant Charge (R410A: Oz.) - Mitsubishi Electric MSY-GE09NA-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
MUY-GE09NA2 1 lb. 12 oz.
MUY-GE12NA2
2 lb. 9 oz.
MUY-GE15NA2
NOTE: Calculation: X oz. = 1.62/5 oz./ft
Outdoor unit
Model
precharged
MUY-GE18NA-1
NOTE: Calculation: X oz. = 1.08/5 oz./ft
NOTE: Refrigerant piping exceeding 33 ft. requires additional refrigerant charge according to the calculation.
Model
precharged
MUY-GE24NA
NOTE: Calculation: X oz. = 2.96/5 oz./ft
Due to continuing improvement, above specification may be subject to change without notice.
MSY-GE-NA2-32
M-Series - MSY/MUY-GE-NA2 Wall-Mount Systems (August 2014)
25ft
0
(Refrigerant piping length (ft) - 25)
25 30
3 lb. 7 oz. 0 1.08
(Refrigerant piping length (ft) - 25)
Outdoor
unit
33 40
4 lb. 3 oz. 0 4.14
(Refrigerant piping length (ft) - 33)
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
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