Whirlpool WHP44 - Heat Pump-Heating Cycle

10
NOTES:
■ Do not adjust the charge based on the suction pressure
unless there is a gross undercharge.
■ Check the Schrader ports for leaks and tighten valve
cores if necessary. Install caps finger tight.
Heat Pump—Heating Cycle
The proper method of charging a heat pump in the heat mode is
by weight with the additional charge adjustments for line size, line
length and other system components. Make final charge
adjustments in the cooling cycle.
NOTE: Subcooling = Saturated Liquid Temperature - Liquid Line Temperature
Saturated Suction Pressure Temperature
Suction Pressure Saturated Suction Temperature ºF Suction Pressure Saturated Suction Temperature ºF
PSIG R-410A PSIG R-410A
50 1 78 20
52 3 80 21
54 4 85 24
56 6 90 26
58 7 95 29
60 8 100 31
62 10 110 36
64 11 120 41
66 13 130 45
68 14 140 49
70 15 150 53
72 16 160 56
74 17 170 60
76 19
Saturated Liquid Pressure Temperature
Liquid Pressure Saturated Liquid Temperature ºF Liquid Pressure Saturated Liquid Temperature ºF
PSIG R-410A PSIG R-410A
200 70 375 112
210 73 405 118
220 76 415 119
225 78 425 121
235 80 435 123
245 83 445 125
255 85 475 130
265 88 500 134
275 90 525 138
285 92 550 142
295 95 575 145
305 97 600 149
325 101 625 152
355 108