Comfort-Aire TGRG Series for R-410A - Manual (Page 57)

FIGURE 35
SYSTEM CHARGE CHARTS
5 TON COOLING
SYSTEM CHARGE CHART
R-410A
REFRIGERANT
92-22904-57-01
Pressure at Suction Service Port (psig)
INSTRUCTIONS:
1. CONNECT PRESSURE GUAGES TO SUCTION AND LIQUID PORTS AT OUTDOOR UNIT.
2. MEASURE AIR TEMPERATURE TO THE UNIT (OUTDOOR DRY BULB AMBIENT).
3. PLACE AN “X” ON THE CHART WHERE THE SUCTION AND LIQUID PRESSURE CROSS.
4. IF “X” IS BELOW OUTDOOR TEMPERATURE LINE, ADD CHARGE AND REPEAT 3.
5. IF “X” IS ABOVE OUTDOOR TEMPERATURE LINE, RECOVER CHARGE AND REPEAT.
150
175
200
225
250
275
300
325
350
375
400
425
450
475
500
525
550
100 110 120 130 140 150 160 170 180 190 200 210 220
115
105
95
85
75
65
55
TGRG**C/TGRG**E – 5 TON COOLING
57