Carrier Ultimate Guide to 410A Charging Charts and HVAC Refrigerant Guidelines

40 Ton MCHX Charging Chart

					All Compressors on a Circuit Must be Operating
						All Outdoor Fans Must be Operating
	150
	145														S S T= 5 5 F
															S S T= 4 5 F
F)	140														S S T= 3 5 F
(deg	135
	130
ure
	125
at	120			Reduce Charge if Above Curve
Temper
	115
	110
ing
	105
s									Add Charge if Below Curve
Conden	100
	95
	90
ted
	85
tura
	80
Sa	75
	70
	55	60	65	70	75	80	85	90	95	100	105	110	115	120	125

Outdoor Air Temperature (deg F)

LEGEND

MCHX— Microchannel Heat Exchanger

SST — Saturated Suction Temperature

Fig. 48 — Charging Chart — 48/50A2,A3,A4,A5040 with R-410A Refrigerant

50 Ton MCHX Charging Chart

					All Compressors on a Circuit Must be Operating
						All Outdoor Fans Must be Operating
	150														S S T= 5 5 F
	145														S S T= 4 5 F
	140														S S T= 3 5 F
F)
(deg	135
	130
ure
	125
at	120			Reduce Charge if Above Curve
Temper
	115
	110
ing
	105
s									Add Charge if Below Curve
Conden	100
	95
	90
ted
	85
tura
	80
Sa	75
	70
	55	60	65	70	75	80	85	90	95	100	105	110	115	120	125

Outdoor Air Temperature (deg F)

LEGEND

MCHX— Microchannel Heat Exchanger

SST — Saturated Suction Temperature

Fig. 49 — Charging Chart — 48/50A2,A3,A4,A5050 with R-410A Refrigerant

137