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Mitsubishi Electric PUHY-HP200 Service Handbook page 114

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[ VIII Test Run Mode ]
(2) Example: PUHY-HP500YSHM-A
9.52
9.52
(3 m)
(1 m)
Liquid
separator
15.88 (30 m)
[3/8"]
[3/8"]
[9 ft]
[3 ft]
Liquid
separator
[3/4"][98 ft]
(3) Sample calculation
All the pipes in the figure are liquid pipes.
15.88 : 30 m
12.7 : 10 m
9.52 : 3 m + 1m + 10 m + 10 m + 20 m + 10 m + 10 m = 64 m
6.35 : 10 m
According to the above formula
Amount of refrigerant to be charged (kg) = (0.2 X 30) + (0.12 X 10) + (0.06 X 64) + (0.024 X 10) + 5.0 = 16.28kg
The calculation result would be 16.28, and it is rounded up to the nearest 0.1.
The final result will be as follows:
Amount of refrigerant to be charged = 16.3kg
All the pipes in the figure are liquid pipes.
[3/4"] : [98 ft]
[1/2"] : [32 ft]
[3/8"] : [9 ft] + [3 ft] + [32 ft] + [32 ft] + [65 ft] + [32 ft] + [32 ft] = [205 ft]
[1/4"] : [32 ft]
According to the above formula
Amount of refrigerant to be charged (oz) = (2.15 X 98) + (1.29 X 32) + (0.65 X 205) + (0.26 X 32) + 177 = 570.55oz
The calculation result would be 570.55 oz, and it is rounded up to the nearest 1 oz.
The final result will be as follows:
Amount of refrigerant to be charged = 571 oz
CAUTION
Charge liquid refrigerant (as opposed to gaseous refrigerant) into the system.
If gaseous refrigerant is charged into the system, the composition of the refrigerant in the cylinder will change and may
result in performance loss.
HWE08110
9.52 (10 m)
12.7 (10 m)
9.52
(10 m)
250
model
[3/8"][32 ft]
[1/2"] [32 ft]
[3/8"]
[32 ft]
250
model
- 105 -
9.52
9.52
(20 m)
(10 m)
125
80
model
model
[3/8"]
[3/8"]
[65 ft]
[32 ft]
125
80
model
model
9.52
6.35
(10 m)
(10 m)
63
20
model
model
[3/8"]
[1/4"]
[32 ft]
[32 ft]
63
20
model
model
GB

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