Heatcraft Refrigeration Products HCS manual Coil Performance- Heating, Water & Steam

	Coil Performance- Heating, Water & Steam
Table 21	1/2" and 5/8" tube, entering air 60°F. DB
Hot Water	Type A and Type 5, 190°F. average water temperature^, heating capacities
	MBH per SQ FT of coil face area (water velocity=3 fps).

			FPM, Type A Coils (1/2" DIA.)					FPM, Type 5 Coils (5/8" DIA.)
	Rows	FPI	400	500	600	650	700	400	500	600	650	700
		6	11.2	12.7	14.0	14.6	15.2	15.1	17.0	18.5	19.3	20.0
		8	14.2	16.0	17.6	18.3	19.0	18.8	20.9	22.8	23.7	24.5
1		10	17.1	19.2	21.0	21.9	22.7	21.9	24.4	26.6	27.5	28.4
		12	19.9	22.3	24.4	25.3	26.2	24.6	27.4	29.9	30.9	31.9
		14	22.7	25.4	27.6	28.6	29.6	26.9	30.1	32.7	33.8	34.9
		6	20.3	23.3	25.9	27.1	28.3	25.8	29.5	32.6	34.0	35.4
		8	25.0	28.6	31.8	33.3	34.7	30.8	35.0	38.8	40.4	42.1
2		10	29.4	33.6	37.3	39.0	40.6	34.7	39.6	43.9	45.8	47.6
		12	33.5	38.3	42.5	44.4	46.2	37.8	43.4	48.1	50.3	52.3
		14	37.3	42.6	47.3	49.4	51.4	40.4	46.5	51.7	54.2	56.3
		6	27.8	32.1	36.0	37.8	39.6	35.2	40.8	45.6	47.9	50.1
		8	33.5	38.8	43.5	45.7	47.8	40.1	46.9	52.9	55.7	58.3
3		10	38.4	44.7	50.2	52.7	55.2	43.9	51.6	58.6	61.7	64.8
		12	42.8	49.9	56.3	59.2	61.9	46.7	55.3	63.0	66.5	70.0
		14	46.7	54.7	61.8	65.0	68.1	48.9	58.2	66.5	70.4	74.1

To estimate for other entering air and average water temperatures, multiply by correction factor in Table 23.

Actual capacity will vary with coil circuiting and flow rate

			5/8" and 1" tube, entering air 0°F. DB
Table 22	Type 5*** and Type 8, 190°F. steam at 5 PSIG, heating capacities
				MBH per SQ FT of coil face area
Steam
		FPM, Type 5 Coils (5/8" DIA.)							FPM, Type 8 Coils (1" DIA.)
Rows	FPI	400	500		600	650	700	400		500	600	650	700
	6	27.4	31.0		34.0	35.4	36.6	23.7		26.7	29.2	30.4	31.5
	8	34.3	38.2		41.2	42.4	43.5	30.3		34.0	37.1	38.4	39.7
1	10	39.6	43.2		45.5	46.2	46.7	36.2		40.3	43.7	45.1	46.4
	12	43.3	46.1		47.0	56.6	57.9	42.3		46.3	49.2	50.4	51.4
	14	45.6	47.0		58.7	59.9	60.8	46.3		50.2	52.9	53.9	54.8
	6	49.4	56.6		62.8	65.6	68.3
	8	56.9	65.4		72.6	75.7	78.4
2	10	62.8	72.3		79.7	82.7	85.3
	12	67.5	77.5		84.8	87.5	89.8
	14	71.3	81.4		88.3	90.7	92.4

*Type 8 coils offered as one row only on model 65 and 75.

Note: Please contact your representative for ARI ratings for coils. These tables are only estimates. To estimate for other entering air and steam pressures multiply by correction factor in Table 23.

Table 23

Capacity connections Factors to Table 21 for other than 60°F. and 190 average water temperature^

Capcity Correction Facors to Table 22 for other than 0°F. air and 5 PSIG steam***.

Ent Air		Average Water Temperature^,				°F.				Steam Pressure, PSIG
Temp. °F.	120	130	140	150	160	170	180	190	5	10	20	25	30	40	50
-20	1.077	1.154	1.231	1.308	1.385	1.462	1.538	1.615	1.088	1.142	1.228	1.263	1.295	1.351	1.395
-10	1.000	1.077	1.154	1.231	1.308	1.385	1.462	1.538	1.044	1.098	1.184	1.219	1.251	1.306	1.351
0	0.923	1.000	1.077	1.154	1.231	1.308	1.385	1.462	1.000	1.054	1.140	1.175	1.207	1.262	1.306
10	0.846	0.923	1.000	1.077	1.154	1.231	1.308	1.385	0.956	1.010	1.096	1.131	1.162	1.218	1.262
20	0.769	0.846	0.923	1.000	1.077	1.154	1.231	1.308	0.912	0.966	1.052	1.087	1.118	1.174	1.218
30	0.692	0.769	0.846	0.923	1.000	1.077	1.154	1.231	0.868	0.922	1.007	1.043	1.074	1.130	1.174
40	0.615	0.692	0.769	0.846	0.923	1.000	1.077	1.154	0.824	0.878	0.963	0.999	1.030	1.086	1.130
50	0.538	0.615	0.692	0.769	0.846	0.923	1.000	1.077	0.780	0.834	0.919	0.955	0.986	1.042	1.086
60	0.462	0.538	0.615	0.692	0.769	0.846	0.923	1.000	0.736	0.790	0.875	0.911	0.942	0.998	1.042
70	0.385	0.462	0.538	0.615	0.692	0.769	0.846	0.923	0.692	0.746	0.831	0.867	0.898	0.954	0.998
80	0.308	0.385	0.462	0.538	0.615	0.692	0.769	0.846	0.648	0.702	0.787	0.823	0.854	0.910	0.954
90	0.231	0.308	0.385	0.462	0.538	0.615	0.692	0.769	0.604	0.658	0.743	0.779	0.810	0.866	0.910
100	0.154	0.231	0.308	0.385	0.462	0.538	0.615	0.692	0.560	0.614	0.699	0.734	0.766	0.822	0.866

^ Average water temperature = (entering water temp + leaving water temp) divided by 2.

**For type 5, at 5 PSIG, if (total MBH divided by 0.961) divided by coil tubes is more than to 50 LB per tube, the condensate loading may be too high. At higher pressures the condensate loading can be more than 50 LB per tube. Get a computer rating for the application.

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