Nordyne Outdoor Heat Pump Two Stage Split System R-410A - Manual (Page 16)

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Heating Charging Chart
Figure 8. Heating Charging Chart
Liquid Temperature (° F)
Liquid Pressure (psig)
200
225
250
275
300
325
350
375
400
50 55 60 65 70 75 80 85 90
Remove refrigerant when above curve
Add refrigerant when below curve