Bryant 581A/B manual 581B036, 581B090 71/2 Tons Subcooling Mode, Air Ent, Condenser

PERFORMANCE DATA (cont)

COOLING CAPACITIES — UNITS WITH PERFECT HUMIDITY™ ADAPTIVE DEHUMIDIFICATION SYSTEM OPTION (cont)

581B090 (71/2 TONS) — SUBCOOLING MODE
		TEMP (F)						AIR ENTERING EVAPORATOR — Cfm/BF
		AIR ENT			2250/0.10					3000/0.11								3750/0.14
	CONDENSER								Air Entering Evaporator — Ewb (F)
			(Edb)
				72		67	62		72		67				62		72		67	62
			TC	98.4		91.1	81.1		103.7	97.9				91.8			105.8		101.3	94.1
	75		SHC	44.5		55.4	67.0		50.4	65.4				80.5			54.5		72.4	89.5
			kW	5.05		4.96	4.87		5.09	5.04				4.97			5.16		5.04	4.99
			TC	94.2		85.8	76.9		100.3	92.4				85.2			103.5		96.8	89.0
	85		SHC	39.7		51.3	62.7		46.2	58.3				75.7			50.6		68.2	84.3
			kW	5.74		5.65	5.55		5.81	5.75				5.64			5.89		5.74	5.70
			TC	89.9		80.5	72.6		96.9	86.8				78.6			101.1		92.2	83.8
	95		SHC	34.8		47.2	58.3		41.9	51.2				71.0			46.6		63.9	79.1
			kW	6.42		6.33	6.22		6.52	6.45				6.31			6.62		6.43	6.40	581B036
			TC	84.6		75.3	68.0		91.6	81.3				73.4			94.5		86.3	78.4
105			SHC	30.0		42.5	53.9		36.9	49.3				66.4			41.4		59.2	73.8
			kW	7.26		7.16	7.05		7.36	7.25				7.15			7.46		7.29	7.23
			TC	79.2		70.1	63.3		86.2	75.8				68.1			87.9		80.3	72.9
																					-150
115			SHC	25.2		37.8	49.4		31.9	47.4				61.9			36.1		54.4	68.5
			kW	8.10		7.99	7.87		8.20	8.05				7.98			8.30		8.14	8.05
			TC	72.8		64.5	57.2		78.0	69.8				62.3			81.6		73.2	69.2
125			SHC	20.1		33.4	44.1		25.4	42.5				56.5			31.1		48.9	64.7
			kW	9.10		8.94	8.83		9.23	9.05				8.95			9.26		9.10	8.99
581B090 (71/2 TONS) — HOT GAS REHEAT MODE*
									Air Entering Evaporator — Ewb (F)
		Temp (F)				75 Dry Bulb				75 Dry Bulb									75 Dry Bulb
		Air Ent			62.5 Wet Bulb					64 Wet Bulb								65.3 Wet Bulb
	Condenser				(50% Relative)				(55% Relative)									(60% Relative)
			(Edb)						Air Entering Evaporator — Cfm
				2250		3000	3750		2250	3000				3750			2250		3000	3750
			TC	37.74		40.54	42.68		38.48	41.35			43.55				39.12		42.05	44.29
80			SHC	10.67		15.63	19.63		5.01	9.84			13.74				0.10		4.82	8.63
			kW	4.92		4.92	4.92		4.97	4.97					4.97		5.01		5.01	5.01
			TC	37.34		39.95	41.95		38.08	40.75			42.81				38.72		41.45	43.55
75			SHC	9.83		14.48	18.24		4.52	9.05			12.70				–0.09		4.34	7.91
			kW	5.19		5.19	5.19		5.25	5.25					5.25		5.30		5.30	5.30
			TC	36.93		39.36	41.22		37.67	40.16			42.07				38.31		40.85	42.80
70			SHC	8.99		13.33	16.84		4.02	8.26			11.67				–0.28		3.86	7.19
			kW	5.46		5.46	5.46		5.52	5.52					5.52		5.58		5.58	5.58
			TC	36.13		38.18	39.75		36.87	38.97			40.58				37.51		39.66	41.31
60			SHC	7.31		11.04	14.04		3.04	6.67					9.60		–0.66		2.89	5.75
			kW	5.99		5.99	5.99		6.08	6.08					6.08		6.15		6.15	6.15
			TC	35.32		37.00	38.29		36.06	37.78			39.10				36.75		38.46	39.81
50			SHC	5.63		8.74	11.25		2.06	5.09					7.53		–1.03		1.93	4.32
			kW	6.52		6.52	6.52		6.63	6.63					6.63		6.73		6.73	6.73
			TC	34.52		35.82	36.82		35.26	36.60			37.62				35.90		37.27	38.32
40			SHC	3.94		6.44	8.45		1.08	3.51					5.47		–1.41		0.97	2.88
			kW	7.05		7.05	7.05		7.18	7.18					7.18		7.30		7.30	7.30
			LEGEND					2.		The following formulas may be used:
BF	— Bypass Factor									tldb	=	tedb	–			sensible capacity (Btuh)
Edb	—	Entering Dry Bulb
																	1.10 x cfm
Ewb	— Entering Wet Bulb
										tlwb	=	Wet-bulb temperature corresponding to enthalpy of air
kW	— Compressor Motor Power Input
SHC — Sensible Heat Capacity (1000 Btuh) Gross												leaving evaporator coil (hlwb)
TC	— Total Capacity (1000 Btuh) Gross									hlwb	=	hewb	–			total capacity (Btuh)
*Negative SHC value indicates that the air entering the coil is being																	4.5 x cfm
										Where: hewb = Enthalpy of air entering evaporator coil.
heated.
NOTES:									3. The SHC is based on 80 F edb temperature of air entering evapo-

1. Direct interpolation is permissible. Do not extrapolate.	rator coil.
	Below 80 F edb, subtract (corr factor x cfm) from SHC.
	Above 80 F edb, add (corr factor x cfm) to SHC.
	Correction Factor = 1.10 x (1 – BF) x (edb – 80).

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