Mitsubishi Electric PUHY-RP200 Service Handbook page 128

[ VIII Test Run Mode ]
(2) Example: PUHY-P500YSHM-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 + 10 m = 40 m
12.7 : 10 m + 10m = 20 m
9.52 : 3 m + 1m + 20 m + 10 m + 10 m = 44 m
6.35 : 10 m
According to the above formula
Amount of refrigerant to be charged (kg) = (0.2 X 40) + (0.12 X 20) + (0.06 X 44) + (0.024 X 10) + 5 = 18.25kg
The calculation result would be 18.25, and it is rounded up to the nearest 0.1.
The final result will be as follows:
Amount of refrigerant to be charged = 18.3kg
All the pipes in the figure are liquid pipes.
[3/4"] : [98 ft] + [32 ft] = [130 ft]
[1/2"] : [32 ft] + [32 ft] = [64 ft]
[3/8"] : [9 ft] + [65 ft] + [32 ft] + [32 ft] = [141 ft]
[1/4"] : [32 ft]
According to the above formula
Amount of refrigerant to be charged (oz) = (2.15 X 130) + (1.29 X 64) + (0.65 X 141) + (0.26 X 32) + 177 = 639.03 oz
The calculation result would be 693.03 oz, and it is rounded up to the nearest 1 oz.
The final result will be as follows:
Amount of refrigerant to be charged = 640 oz
CAUTION
Charge liquid refrigerant (as opposed to gaseous refrigerant) into the system.
ŒIf gaseous refrigerant is charged into the system, the composition of the refrigerant in the cylinder will change and may
result in performance loss.
HWE10010
12.7 (10 m)
15.88 (10 m)
12.7
(10 m)
250
model
[1/2"][32 ft]
[3/4"] [32 ft]
[1/2"]
[32 ft]
250
model
- 119 -
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