MUFZ-KJ Service Manual

11
Max. Length
A
Max. Height
difference
B
Indoor
unit
Outdoor unit
MAX. REFRIGERANT PIPING LENGTH and MAX. HEIGHT DIFFERENCE
Model
Refrigerant piping: ft. Piping size O.D: in.
Max. Length
A
Max. Height difference
B
Gas Liquid
MUFZ-KJ09NAHZ
MUFZ-KJ12NAHZ
65 40 3/8 1/4
MUFZ-KJ15NAHZ
MUFZ-KJ18NAHZ
100 50 1/2 1/4
ADDITIONAL REFRIGERANT CHARGE (R410A: oz.)
NOTE: Refrigerant piping exceeding 25 ft. requires additional refrigerant charge according to the calculation.
Model
Outdoor unit
precharged
Refrigerant piping length (one way): ft.
25 30 40 50 60 65
MUFZ-KJ09NAHZ
MUFZ-KJ12NAHZ
2 lb. 10 oz. 0 1.08 3.24 5.40 7.56 8.64
Calculation: X oz. = 1.08/5 oz./ft. × (Refrigerant piping length (ft.) - 25)
NOTE: Refrigerant piping exceeding 25 ft. requires additional refrigerant charge according to the calculation.
Model
Outdoor unit
precharged
Refrigerant piping length (one way): ft.
25 30 40 50 60 70 80 90 100
MUFZ-KJ15NAHZ
MUFZ-KJ18NAHZ
3 lb. 5 oz. 0 1.62 4.86 8.10 11.34 14.58 17.82 21.06 24.30
Calculation: X oz. = 1.62/5 oz./ft. × (Refrigerant piping length (ft.) - 25)
OBH753A