Bryant 581A/B manual 581B120 10 Tons Subcooling Mode, 3000/0.03 3200/0.03, Shc

PERFORMANCE DATA (cont)

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

581B120 (10 TONS) — SUBCOOLING MODE
Temp (F)							Air Entering Evaporator — Cfm/BF
Air Ent				3000/0.03			3200/0.03			4000/0.04				5000/0.04
Condenser							Air Entering Evaporator — Ewb (F)
	(Edb)
			72	67	62	72	67	62	72	67	62	72		67	62
75		TC	134.3	122.5	111.4	135.8	124.3	113.0	138.4	129.5	123.5	143.3		136.5	130.2
		SHC	60.0	76.1	93.7	61.3	79.1	97.4	68.0	89.5	109.4	75.2		100.9	123.3
		kW	7.03	6.84	6.72	7.01	6.89	6.77	7.10	6.92	6.77	7.15		7.03	6.88
85		TC	127.6	115.4	104.6	128.9	118.1	107.0	132.5	121.5	116.6	137.2		128.0	122.9
		SHC	51.5	68.8	87.2	53.9	72.0	91.2	61.0	82.7	102.4	68.6		93.6	115.9
		kW	7.96	7.86	7.59	7.94	7.78	7.51	8.02	7.84	7.69	8.02		7.94	7.79
95		TC	120.9	108.3	97.8	121.9	111.8	101.0	126.5	113.4	109.7	131.1		119.4	115.5
		SHC	43.0	61.5	80.6	46.5	64.8	84.9	53.9	75.9	95.4	62.0		86.2	108.4
		kW	8.88	8.87	8.46	8.86	8.66	8.26	8.94	8.76	8.60	8.89		8.85	8.69	581B036
105		TC	112.0	99.9	90.4	113.1	103.2	93.4	117.2	105.0	100.7	122.1		110.5	105.9
		SHC	36.1	54.1	73.8	38.8	57.8	78.9	45.6	68.2	86.8	53.0		78.3	99.7
		kW	10.0	10.0	9.6	10.0	9.8	9.5	10.1	9.9	9.8	10.1		10.0	9.9
115		TC	103.0	91.5	83.1	104.3	94.6	85.9	107.8	96.7	91.7	113.0		101.6	96.4	-150
		SHC	29.2	46.7	66.9	31.2	50.7	72.9	37.3	60.6	78.3	44.0		70.3	90.9
		kW	11.2	11.1	10.8	11.2	11.0	10.7	11.3	11.1	11.0	11.3		11.2	11.1
125		TC	94.1	83.1	75.7	95.5	86.0	78.3	98.5	88.3	82.7	104.0		92.7	86.8
		SHC	22.3	39.3	60.1	23.5	43.7	66.8	29.0	52.9	69.7	35.0		62.4	82.2
		kW	12.35	12.15	11.94	12.38	12.13	11.92	12.48	12.27	12.25	12.53		12.30	12.28
581B120 (10 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
			3000	3200	4000	5000	3000	3200	4000	5000	3000		3200	4000	5000
		TC	49.15	50.16	53.80	57.72	51.04	52.08	55.86	59.94	52.67		53.74	57.65	61.86
80		SHC	9.58	12.02	20.74	29.89	2.88	5.29	13.88	22.89	–2.92		-0.55	7.93	16.83
		kW	7.39	7.38	7.38	7.37	7.45	7.45	7.44	7.43	7.50		7.50	7.49	7.49
		TC	49.60	50.61	54.30	58.28	51.45	52.50	56.33	60.45	53.05		54.14	58.09	62.34
75		SHC	10.07	12.38	20.60	29.23	3.82	6.09	14.20	22.70	–1.60		0.64	8.65	17.05
		kW	7.56	7.56	7.55	7.55	7.63	7.63	7.62	7.62	7.69		7.69	7.69	7.68
		TC	50.04	51.07	54.81	58.83	51.86	52.92	56.80	60.96	53.43		54.53	58.52	62.82
70		SHC	10.56	12.73	20.47	28.58	4.75	6.89	14.52	22.52	–0.28		1.83	9.36	17.26
		kW	7.73	7.73	7.72	7.72	7.81	7.81	7.81	7.80	7.89		7.88	7.88	7.87
		TC	50.93	51.98	55.81	59.93	52.68	53.77	57.73	61.99	54.20		55.32	59.39	63.77
60		SHC	11.54	13.44	20.19	27.28	6.62	8.49	15.16	22.15	2.36		4.21	10.79	17.70
		kW	8.07	8.07	8.07	8.06	8.18	8.18	8.17	8.17	8.27		8.27	8.26	8.26
		TC	51.82	52.90	56.81	61.03	53.50	54.62	58.66	63.01	54.96		56.10	60.26	64.73
50		SHC	12.53	14.14	19.92	25.98	8.50	10.09	15.80	21.78	5.00		6.58	12.22	18.14
		kW	8.42	8.42	8.41	8.41	8.54	8.54	8.54	8.54	8.66		8.65	8.65	8.65
		TC	52.71	53.81	57.82	62.13	54.32	55.46	59.59	64.04	55.72		56.89	61.13	65.69
40		SHC	13.51	14.85	19.64	24.67	10.37	11.70	16.43	21.41	7.64		8.96	13.65	18.58
		kW	8.76	8.76	8.76	8.75	8.91	8.91	8.91	8.90	9.04		9.04	9.04	9.03

		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 heated.							4.5 x cfm
NOTES:			Where: hewb = Enthalpy of air entering evaporator coil.
1. Direct interpolation is permissible. Do not extrapolate.			3. The SHC is based on 80 F edb temperature of air entering evaporator

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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