Bryant 581A/B manual Performance Data 579F, Cooling Capacities

							PERFORMANCE DATA — 579F
								COOLING CAPACITIES
	579F180 (15 Tons)
	Temp (F)								Evaporator Air Quantity — Cfm
	Air Entering					4500								5250
	Condenser								Evaporator Air — Ewb (F)/BF
	(Edb)
			54/0.48	58/0.32	62/0.22	67/0.20		72/0.19	76/0.24	80/0.04	54/0.54	58/0.39	62/0.25	67/0.23	72/0.21	76/0.23	80/0.04
		TC	—	168	177	192		209	225	240	171	171	182	197	214	229	246
	75	SHC	—	152	142	123		103	85	69	171	150	151	130	108	88	69
		kW	—	12.4	12.6	13.0		13.3	13.6	13.9	12.5	12.6	12.7	13.1	13.4	13.7	14.0
		TC	159	164	171	186		202	219	233	166	172	175	190	207	222	237
	85	SHC	159	148	139	120		100	83	66	166	151	148	127	105	86	67
		kW	13.7	13.8	14.1	14.4		14.8	15.5	15.4	13.9	14.0	14.1	14.5	14.9	15.2	15.5
		TC	154	159	165	179		195	210	226	161	164	169	183	199	214	229
	95	SHC	154	142	136	117		98	80	64	161	155	145	124	102	83	64
		kW	15.3	15.4	15.5	15.9		16.3	16.7	17.3	15.5	15.5	15.7	16.0	16.5	16.8	17.1
		TC	149	154	158	172		187	201	216	156	156	162	176	191	205	222
	105	SHC	149	137	133	114		95	78	61	156	156	142	121	99	81	62
		kW	16.9	17.0	17.1	17.6		18.0	18.4	18.7	17.2	17.1	17.2	17.7	18.1	18.5	19.1
		TC	144	145	152	165		179	193	207	150	151	156	168	183	196	210
	115	SHC	144	142	130	111		92	75	58	150	151	137	118	96	78	58
		kW	18.6	18.6	18.9	19.3		19.8	20.2	20.6	18.9	18.9	19.0	19.5	19.9	20.3	20.7
		TC	143	143	150	163		178	191	205	149	149	154	167	181	194	208
	117	SHC	143	142	129	110		91	74	57	149	149	136	117	96	77	58
		kW	18.9	19.0	19.2	19.7		20.2	20.5	20.9	19.2	19.2	19.4	19.8	20.3	20.7	21.0
		TC	141	141	148	161		175	—	—	147	148	152	164	179	—	—
	120	SHC	141	141	128	109		90	—	—	147	148	135	116	95	—	—
		kW	19.5	19.5	19.8	20.2		20.7	—	—	19.8	19.8	19.9	20.4	20.8	—	—
	579F180 (15 Tons) (cont)
	Temp (F)								Evaporator Air Quantity — Cfm
	Air Entering					6000								6750
	Condenser								Evaporator Air — Ewb (F)/BF
300-	(Edb)
			54/0.58	58/0.43	62/0.30	67/0.25		72/0.23	76/0.24	80/0.04	54/0.62	58/0.48	62/0.36	67/0.28	72/0.25	76/0.25	80/0.03
		TC	178	174	185	200		218	233	250	183	179	183	203	221	236	253
579F180	75	SHC	178	171	159	136		112	91	70	183	179	161	142	116	93	70
		kW	12.7	12.7	12.8	13.1		13.5	13.8	14.1	12.8	12.7	12.8	13.2	13.5	13.9	14.1
		TC	173	173	179	193		210	227	244	178	178	183	196	213	228	247
	85	SHC	173	172	156	133		109	89	68	178	178	161	139	113	91	68
		kW	14.1	14.1	14.2	14.6		15.0	15.8	16.2	14.2	14.2	14.3	14.7	15.1	15.3	16.3
		TC	167	167	173	186		203	217	232	173	173	177	189	205	220	235
	95	SHC	167	167	152	130		106	86	64	173	173	157	137	111	88	65
		kW	15.7	15.6	15.8	16.1		16.6	16.9	17.2	15.8	15.8	15.9	16.2	16.6	17.0	17.3
		TC	162	162	167	179		194	208	223	168	167	171	181	197	211	225
	105	SHC	162	162	147	127		104	83	61	168	167	152	133	108	85	62
		kW	17.3	17.3	17.4	17.8		18.2	18.5	18.9	17.4	17.4	17.5	17.9	18.3	18.6	18.9
		TC	156	156	160	171		186	199	213	160	160	165	173	188	201	215
	115	SHC	156	156	143	124		101	80	59	160	160	145	130	104	82	59
		kW	19.1	19.1	19.1	19.6		20.0	20.4	20.7	19.2	19.2	19.3	19.6	20.1	20.5	20.8
		TC	154	155	159	169		184	197	211	159	159	163	171	186	199	—
	117	SHC	154	155	142	124		100	79	58	159	159	144	129	104	82	—
		kW	19.4	19.4	19.5	19.9		20.4	20.8	21.1	19.6	19.6	19.7	20.0	20.4	20.8	—
		TC	153	153	157	167		181	—	—	157	157	161	169	—	—	—
	120	SHC	153	153	140	122		99	—	—	157	157	142	128	—	—	—
		kW	19.9	19.9	20.0	20.4		20.9	—	—	20.1	20.1	20.2	20.5	—	—	—

		LEGEND
BF	—	Bypass Factor
Edb	—	Entering Dry-Bulb
Ewb	—	Entering Wet-Bulb
kW	— Compressor Motor Power Input
ldb	—	Leaving Dry-Bulb
lwb	—	Leaving Wet-Bulb
SHC	— Sensible Heat Capacity (1000 Btuh) Gross
TC	—	Total Capacity (1000 Btuh) Gross

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 evaporator coil. Below 80 F edb, subtract (corr factor x cfm) from SHC.

Above 80 F edb, add (corr factor x cfm) to SHC.

BYPASS		ENTERING AIR DRY-BULB TEMP (F)
	79	78	77	76	75	under 75
FACTOR
	81	82	83	84	85	over 85
(BF)
			Correction Factor
0.05	1.04	2.07	3.11	4.14	5.18
0.10	0.98	1.96	2.94	3.92	4.91
0.20	0.87	1.74	2.62	3.49	4.36
0.30	0.76	1.53	2.29	3.05	3.82	Use formula
0.40	0.65	1.31	1.96	2.62	3.27	shown below.
0.50	0.55	1.09	1.64	2.18	2.73
0.60	0.44	0.87	1.31	1.74	2.18
0.70	0.33	0.65	0.98	1.31	1.64

Interpolation is permissible.

Correction Factor = 1.10 x (1 – BF) x (edb – 80).

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