Rheem RRNL Installation Instructions Manual page 90

FIGURE 45
SYSTEM CHARGE CHARTS
525
500
475
450
425
400
375
350
325
300
275
250
225
200
175
120 125
BEFORE FINAL REFRIGERANT CHECK, INDOOR RETURN AIR TEMPERATURE SHOULD BE AT COMFORT
CONDITIONS FOR MOST ACCURATE RESULTS.
CONNECT PRESSURE GAUGES TO SUCTION AND LIQUID PORTS ON UNIT.
MEASURE AIR TEMPERATURE TO OUTDOOR COIL.
PLACE AN "X" ON THE APPROPRI ATE CHART WHERE THE SUCTION AND LIQUID PRESSURES CROSS.
IF "X" IS BELOW AMBIENT TEMPERATURE LINE, ADD CHARGE AND REPEAT STEP 3.
IF "X" IS ABOVE AMBIENT TEMPERATURE LINE, RECOVER EXCESS CHARGE AND REPEAT STEP 3.
90
(-)RNL/(-)RPL – 2 1/2 TON COOLING
2 1/2 TON COOLING
SYSTEM CHARGE CHART - REFRIGERANT 410A
SYSTEM CHARGE CHART - REFRIGERANT 410A
130 135 140
Pressure at Suction Service Port (psig)
145 150 155
115
105
95
85
75
65
55
160 165 170
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