Bryant 569D, 576C, 566E Hydronic Heating Capacities, Heating Correction Factors, ROW Unit Airflow

2. Leaving db = ent db (F) +

PERFORMANCE DATA (cont)

HYDRONIC HEATING CAPACITIES

			1-ROW				2-ROW
UNIT	AIRFLOW		STEAM*			HOT WATER COIL†
524A-B	(Cfm)							Water
524A-C		Cap.		Ldb	Cap.	Ldb		Flow	PD
								(Gpm)
	1,800	146		134	156.0	140		15.6	3.4
072	2,400	173		126	183.0	131		18.3	4.3
	3,000	209		123	206.0	124		20.6	5.2
	2,250	168		129	174.0	133		17.4	4.0
090	3,000	209		123	206.0	124		20.6	5.2
	3,750	240		117	238.0	118		23.8	6.5
	3,000	209		123	299.0	152		29.9	5.0
120	4,000	243		115	275.0	124		27.5	6.6
	5,000	279		111	316.0	119		31.6	8.2
	3,750	370		150	362.0	149		36.2	4.2
150	5,000	425		137	409.0	136		40.9	5.1
	6,250	465		128	456.0	128		45.6	6.0
	4,500	402		141	412.0	145		41.2	4.5
180	6,000	458		129	471.0	133		47.1	5.5
	7,500	479		118	529.0	125		52.9	6.6
	6,000	458		129	506.0	138		50.6	5.1
240	8,000	487		115	584.0	128		58.4	6.3
	10,000	499		105	652.0	120		65.2	7.5
	7,500	511		122	649.0	140		64.9	5.7
300	10,000	575		112	752.0	130		75.2	7.1
	12,500	626		106	842.0	122		84.2	8.5

LEGEND

Cap. — Capacity (Btuh in thousands)

Lab — Leaving-Air Dry-Bulb Temp (F)

PD — Pressure Drop (ft water)

*Based on 5 psig steam, 60 F entering-air temperature. All steam coils are non-freeze type.

†Based on 200 F entering water, 20 F water temperature drop, 60 F entering-air temperature.

NOTES:

1. Maximum operating limits for heating coils: 20 psig at 260 F. Capacity (Btuh)

1.1 x cfm

3. See Heating Correction Factors table.

HEATING CORRECTION FACTORS

HOT WATER COIL

Water Temp	Ent Water		Entering-Air Temp (F)
Drop	Temp	40	50	60	70	80
(F)	(F)
	140	0.72	0.64	0.57	0.49	0.41
10	160	0.89	0.81	0.74	0.66	0.58
	240	1.06	0.98	0.90	0.83	0.75
	200	1.22	1.15	1.07	1.00	0.92
	220	1.39	1.32	1.24	1.17	1.09
	140	0.64	0.57	0.49	0.41	0.33
20	160	0.81	0.74	0.66	0.58	0.51
	240	0.98	0.91	0.83	0.75	0.68
	200	1.15	1.08	1.00	0.93	0.85
	220	1.32	1.25	1.17	1.10	1.02
	140	0.56	0.49	0.41	0.33	0.24
30	160	0.74	0.66	0.58	0.51	0.43
	240	0.91	0.83	0.76	0.68	0.60
	200	1.08	1.00	0.93	0.85	0.78
	220	1.25	1.18	1.10	1.03	0.95

STEAM COIL

Steam Pressure			Entering-Air Temp (F)
(psig)	40	50		60	70	80
0	1.06	0.98		0.91	0.85	0.78
2	1.09	1.02		0.95	0.89	0.82
5	1.13	1.06		1.00	0.93	0.87

NOTE: Multiply capacity given in the Hydronic Heating Capacities table by the correction factor for conditions at which unit is actually operating. Correct leaving-air temperature using formula in Note 2 of Hydronic Heating Capacities table.

524A072-300

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