Bryant 581A/B manual 581B048 4 Tons Subcooling Mode, 581B048 4 Tons HOT GAS Reheat Mode

PERFORMANCE DATA (cont)

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

	581B048 (4 TONS) — SUBCOOLING MODE
		Temp (F)									Air Entering Evaporator — Cfm/BF
		Air Ent			1200/0.17						1450/0.19						1600/0.21					2000/0.24
	Condenser										Air Entering Evaporator — Ewb (F)
		(Edb)
					72		67		62	72	67		62			72	67	62		72			67	62
				TC	52.9		47.5		41.5	55.7	50.9		47.5			57.0	51.7	48.1		60.5			55.6	52.1
	75			SHC	22.7		28.4		33.4	26.1	34.1		38.9			25.9	33.7	41.6		29.4			39.1	47.5
				kW	2.87		2.86		2.82	2.89	2.87		2.84			2.89	2.86	2.85		2.90			2.88	2.85
				TC	49.2		43.8		37.1	52.1	47.2		43.6			52.9	47.9	43.7		55.4			51.4	47.0
	85			SHC	19.8		25.5		30.4	22.2	29.5		35.8			22.4	31.1	38.7		24.2			36.0	44.3
				kW	3.26		3.25		3.21	3.28	3.26		3.23			3.28	3.26	3.24		3.28			3.26	3.24
				TC	45.8		40.1		32.8	48.2	43.6		39.4			48.8	44.0	39.3		51.7			47.4	43.0
	95			SHC	17.2		22.5		27.3	18.4	24.8		32.6			19.0	28.1	35.9		20.7			33.0	41.0
150				kW	3.71		3.68		3.64	3.72	3.69		3.67			3.72	3.69	3.67		3.74			3.70	3.68
	105			TC	41.6		37.0		29.7	43.2	38.9		35.4			43.9	39.7	34.7		46.5			41.4	37.5
581B036-				SHC	13.5		19.5		23.9	14.7	21.7		29.2			15.0	23.7	30.6		16.4			27.8	35.1
				kW	4.20		4.17		4.11	4.20	4.17		4.14			4.20	4.17	4.15		4.22			4.19	4.16
				TC	37.2		33.2		27.1	38.4	34.0		30.8			39.4	35.5	30.0		41.3			35.2	31.9
	115			SHC	9.9		16.4		20.7	11.3	18.5		25.6			11.2	19.7	25.4		12.4			22.4	28.6
				kW	4.73		4.68		4.62	4.74	4.71		4.64			4.73	4.72	4.65		4.74			4.72	4.69
				TC	32.4		28.1		24.9	33.8	28.1		27.4			35.3	30.5	26.6		36.1			32.0	28.7
	125			SHC	7.2		12.9		18.3	8.4	14.5		21.9			16.8	21.1	21.2		9.5			18.3	24.1
				kW	5.29		5.23		5.15	5.30	5.25		5.19			5.29	5.27	5.21		5.30			5.29	5.25
	581B048 (4 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
						1200			1450	1600		1200			1450		1600		1200			1450		1600
				TC		12.13			14.30	15.43		14.98			17.20		18.36		17.44			19.71		20.90
	80			SHC		1.01			1.60	1.90		–0.18			0.41		0.72		–1.20			–0.61		–0.30
				kW		2.76			2.76	2.76		2.75			2.75		2.75		2.74			2.74		2.74
				TC		13.25			15.28	16.34		15.96			18.05		19.14		18.31			20.44		21.56
	75			SHC		1.60			2.14	2.43		0.50			1.05		1.34		–0.45			0.11		0.40
				kW		7.54			7.54	7.57		7.61			7.64		7.66		7.66			7.70		7.71
				TC		14.37			16.27	17.26		16.94			18.90		19.92		19.17			21.17		22.22
	70			SHC		2.18			2.69	2.96		1.17			1.69		1.96		0.30			0.82		1.10
				kW		2.70			2.70	2.70		2.70			2.70		2.70		2.70			2.70		2.70
				TC		16.60			18.24	19.10		18.91			20.60		21.48		20.91			22.64		23.54
	60			SHC		3.35			3.79	4.03		2.52			2.97		3.21		1.80			2.25		2.50
				kW		2.64			2.64	2.64		2.65			2.65		2.65		2.65			2.65		2.65
				TC		18.83			20.22	20.94		20.87			22.30		23.04		22.65			24.10		24.86
	50			SHC		4.51			4.89	5.09		3.86			4.25		4.45		3.30			3.69		3.89
				kW		2.59			2.59	2.59		2.60			2.60		2.60		2.61			2.61		2.61
				TC		21.06			22.19	22.78		22.84			24.00		24.61		24.38			25.57		26.19
	40			SHC		5.68			5.99	6.16		5.21			5.53		5.69		4.80			5.12		5.29
				kW		2.53			2.53	2.53		2.55			2.55		2.55		2.57			2.57		2.57

LEGEND

BF — Bypass Factor Edb — Entering Dry Bulb Ewb — Entering Wet Bulb

kW — Compressor Motor Power Input

SHC — Sensible Heat Capacity (1000 Btuh) Gross TC — Total Capacity (1000 Btuh) Gross

*Negative SHC value indicates that the air entering the coil is being heated.

NOTES:

1. Direct interpolation is permissible. Do not extrapolate.

2. The following formulas may be used:

tldb	=	tedb	–	sensible capacity (Btuh)
				1.10 x cfm
tlwb	= Wet-bulb temperature corresponding to enthalpy of air
		leaving evaporator coil (hlwb)
hlwb	=	hewb	–	total capacity (Btuh)
				4.5 x cfm

Where: hewb = Enthalpy of air entering evaporator coil.

3.The SHC is based on 80 F edb temperature of air entering evapo- 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).

96