Heatcraft Refrigeration Products HCS manual Air Handler Performance - Quick Reference

Air Handler Performance - Quick Reference

Table 1				Heating and Cooling Performance for Selected Coils
					At 500 FPM (2.54 m/s) and 10 FPI.
				See notes for coil descriptions and rating conditions.
	Note 1		Note 2		Note 3		Note 4		Note 5		Note 6		Note 7
	air volume at		air handler		DX air		Refrigerant		Chilled water		Hot water		Steam
Unit	500 fpm 2.54 m/s		face area		conditioning		Heat reclaim		A/C		Heating		Heating
Size	CFM	cu m/h	SQ FT	sq m	MBH	KW	MBH	KW	MBH	KW	MBH	KW	MBH	KW
03	1565	2659	3.13	0.29	58	17.0	50	14.7	73	21.4	177	51.9	93	27.3
06	2880	4893	5.76	0.54	110	32.2	92	27.0	136	39.9	341	99.9	179	52.4
08	3905	6635	7.81	0.73	150	44.0	124	36.3	179	52.5	452	132.4	254	74.4
10	4885	8300	9.77	0.91	190	55.7	156	45.7	229	67.1	548	160.6	317	92.9
12	6200	10534	12.40	1.15	241	70.6	198	58.0	286	83.8	684	200.4	395	115.7
14	7290	12386	14.58	1.36	284	83.2	232	68.0	328	96.1	812	237.9	465	136.2
18	8855	15045	17.71	1.65	345	101.1	282	82.6	418	122.5	1034	303.0	571	167.3
20	10025	17033	20.05	1.86	390	114.3	319	93.5	472	138.3	1162	340.5	651	190.7
26	13280	22563	26.56	2.47	520	152.4	423	124.0	616	180.5	1520	445.4	859	251.7
34	16825	28586	33.65	3.13	659	193.1	536	157.1	814	238.5	2026	593.6	1145	335.5
41	20365	34601	40.73	3.79	797	233.5	649	190.2	978	286.6	2406	705.0	1360	398.5
50	25313	43008	50.63	4.70	992	290.7	807	236.5	1196	350.4	2637	772.6	1586	464.7
65	32290	54861	64.58	6.00	1253	367.1	1029	301.5	1549	453.9	3798	1112.8	1848	541.5
75	37675	64011	75.35	7.00	1462	428.4	1200	351.7	1792	525.1	4407	1291.3	2156	631.7

Notes

Note 1 - Air volume in CFM and cubic meters per hour for air speed of 500 fpm or 2.54 meter per second through a large face area 1/2" tube diameter (Type A) coil for each air handler model.

See pages 42 & 43 for range of air volumes for each model.

Note 2 - Face area of large size 1/2" diameter tube coil for each air handler in square feet and square meters. 5/8" & 1" diameter tube coils have slightly smaller face areas. See page 42 & 43 for other coils.

Note 3 - Direct expansion halocarbon air conditioning in thousands of BTUH and kilowatts. Performance is for a

	1/2" tube, 4 row, 10 FPI coil with 40°F. (4.4ºC.) evaporating temperature and entering air
	temperatures at 80°F. (26.7ºC.) dry bulb and 67°F. (19.4ºC.) wet bulb. See pages 14, 15, and 21 for
	other coils and conditions.
Note 4 -	Halocarbon refrigerant gas heat reclaim (thousands of BTUH and kilowatts). Performance is for a 1/2"
	tube, 3 row, 10FPI coil with a 50°F. TD (or 27.7 degrees centigrade of temperature difference)
	between entering air and condensing temperature. See page 20 for other coils and conditions.
Note 5 -	Chilled water air conditioning in thousands of BTUH or kilowatts. Performance is for a 5/8" tube, 6
	row, 10FPI coil with 44°F. (6.7ºC.) entering water temperature. Entering air temperatures are 80°F.
	(26.7ºC.) dry bulb and 67°F. (19.4ºC.) wet bulb. The fluid pressure drop is less than 25 feet (0.76
	kilogram per square centimeter) and the water velocity is less than 6 fps (1.83 meters per second).
	See pages 16,17,and 22 for other coils and conditions.

Note 6 - Hot water heating performance in thousands of BTUH or kilowatts. Performance is for a 5/8" tube, 2 row, 10 FPI coil with 200°F. (93.3ºC.) entering water temperature. The entering air temperature is 0°F. (-18°C.). The fluid pressure drop is less than 25 feet (0.76 kilogram per square centimeter) and the water velocity is less than 6 fps (1.83 meters per second). See pages 18, 19, and 23 for more coils.

Note 7 - Steam heating performance in thousands of BTUH or kilowatts. The coils are 5/8" tube, 1 row, and 10 FPI (coils for models 65 and 75 are 1" diameter tubes). The entering air temperature is 60°F. (15.6ºC.) and the steam pressure is 5 psig (1.38 kilogram per square centimeter). See pages 18, 19, and 23 for other coils and conditions.

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