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Mitsubishi Electric PFAV-P250VM-E Service Manual page 122

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[ IX Test Run Mode ]
(2) Example: PUHY-P500YSHM-A
(3) Sample calculation
All the pipes in the figure are liquid pipes.
15.88 : 30 m = 30 m
9.52 : 3 m + 1m = 4 m
According to the above formula
Amount of refrigerant to be charged (kg) = (0.2 X 30) + (0.06 X 4) + 5.0 = 11.24kg
The calculation result would be 11.24, and it is rounded up to the nearest 0.1.
The final result will be as follows:
Amount of refrigerant to be charged = 11.3kg
All the pipes in the figure are liquid pipes.
[3/4"] : [98 ft] = [98 ft]
[3/8"] : [9 ft] + [3 ft] = [12 ft]
According to the above formula
Amount of refrigerant to be charged (oz) = (2.15 X 98) + (0.65 X 12) + 177 = 395.5oz
The calculation result would be 395.5 oz, and it is rounded up to the nearest 1 oz.
The final result will be as follows:
Amount of refrigerant to be charged = 396 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.
HWE10190
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]
- 113 -
P600-F
P600-F
GB
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