Bryant 581A/B ARI* Capacity Ratings 581A155,180, Heating Capacities and Efficiencies 581A155-180

ARI* CAPACITY RATINGS — 581A155,180

LOW HEAT UNITS

UNIT	NOMINAL	NET COOLING		TOTAL		SOUND
		CAPACITY			EER	RATING	IPLV
581A	TONS			WATTS
		(Btuh)				(dB)
155230	13	134,000		12,209	10.60	88	11.4
180275	15	180,000		17,064	10.50	88	11.4
			HIGH HEAT UNITS
UNIT	NOMINAL	NET COOLING		TOTAL		SOUND
		CAPACITY			EER	RATING	IPLV
581A	TONS			WATTS
		(Btuh)				(dB)
155300	13	134,000		12,218	10.60	88	11.4
180360	15	180,000		17,179	10.50	88	11.1

	LEGEND
dB	— Sound Levels (decibels)
db	— Dry Bulb
EER — Energy Efficiency Ratio
IPLV	— Integrated Part-Load Values
wb	— Wet Bulb

*Air Conditioning and Refrigeration Institute.

NOTES:

1.Rated in accordance with ARI Standards 360 and 270.

2.ARI ratings are net values, reflecting the effects of circulating fan heat.

3.Ratings are based on:

Cooling Standard: 80 F db, 67 F wb indoor entering-air tempera- ture and 95 F db air entering outdoor unit.

IPLV Standard: 80 F db, 67 F wb indoor entering-air temperature and 80 F db outdoor entering-air temperature.

4.All 581A155, 180 units are in compliance with ASHRAE 90.1- 1999 Energy Standard for minimum EER requirements. Refer to state and local codes or visit the following website: http://sol- stice.crest.org/efficiency/bcap to determine if compliance with this standard pertains to a given geographical area of the United States.

HEATING CAPACITIES AND EFFICIENCIES — 581A155-180

	HEATING	OUTPUT	TEMPERATURE	AGA STEADY	MINIMUM HEATING
UNIT 581A	INPUT (Btuh)	CAPACITY		STATE
			RISE (F)		CFM†
	Stage 2/Stage 1*	(Btuh)		EFFICIENCY (%)
155230	230,000/172,000	186,000	15-45	81.0	3750
155300	300,000/225,000	243,000	30-60	81.0	3830
180275	275,000/206,000	223,000	15-45	81.0	4580
180360	360,000/270,000	292,000	20-50	81.0	5400

*All units are 2-stage heat.

†Minimum heating cfm must be maintained to ensure proper heating operation.

NOTE: Minimum allowable temperature of mixed air entering the heat exchanger during first stage heating is 45 F. There is no minimum mixed-air limitation during second-stage heating. For entering air temperatures below 45 F, both stages of heat must be energized together to minimize conden- sation issues and ensure proper unit operation.

LOW OUTDOOR AIR TEMPERATURE

COOLING OPERATION LIMITS

		TEMPERATURE LIMIT (F)
UNIT SIZE	Standard	Unit With	Unit With
581A			Motormaster®
	Unit	Low Ambient Kit
			Control
155, 180	40	20	–20

AIR QUANTITY LIMITS (Cooling)

UNIT 581A	MINIMUM CFM	MAXIMUM CFM
155	3900	6500
180	4500	7500

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