Heat Controller HTH Unit Operating Conditions, Htv/Htd/Hth Series, Heat Controller, Inc, Cooling

Installation, Operation & Maintenance HTV/HTD/HTH SERIES Heat Controller, Inc.

Unit Operating Conditions

Table 9a: HT Coax Water Pressure Drop

Model	GPM		Pressure Drop (psi)
		30°F	50°F	70°F	90°F
	2.3	0.7	0.4	0.4	0.5
	3.0	1.1	0.7	0.6	0.7
0246	3.4	1.3	0.9	0.8	0.8
	4.5	2.0	1.4	1.2	1.2
	6.0	3.1	2.3	1.9	1.8
	3.0	1.5	0.9	0.8	0.9
	4.5	2.6	1.7	1.5	1.5
0368	6.0	3.8	2.7	2.3	2.2
	6.8	4.5	3.2	2.7	2.6
	9.0	6.9	5.2	4.4	4.1
	4.5	1.5	0.6	0.5	0.3
8	6.0	2.6	1.1	1.0	0.9
	6.8	3.8	1.4	1.3	1.2
049
	9.0	4.5	2.5	2.3	2.2
	12.0	6.9	4.2	3.8	3.5
	6.0	0.9	0.2	0.2	0.3
	7.5	1.7	0.9	0.7	0.8
0604	9.0	2.5	1.5	1.3	1.4
	11.3	3.7	2.6	2.3	2.3
	12.0	4.1	3.0	2.6	2.6
	15.0	6.1	4.7	4.1	4.0
	7.0	1.4	0.7	0.5	0.7
	8.5	2.2	1.3	1.1	1.2
0	10.5	3.3	2.2	1.9	2.0
072	12.8	4.6	3.4	3.0	2.9
	14.0	5.4	4.1	3.6	3.5
	17.0	7.6	6.0	5.4	5.2

Table 10: Water Temperature Change Through Heat Exchanger

	
	

Antifreeze Correction Table

			Cooling		Heating		WPD
	Antifreeze
Antifreeze Type			EWT 90°F		EWT 30°F		Corr. Fct.
	%
							EWT 30°F
		Total Cap	Sens Cap	Power	Htg Cap	Power
Water	0	1.000	1.000	1.000	1.000	1.000	1.000
	5	0.995	0.995	1.003	0.989	0.997	1.070
Propylene Glycol
	15	0.986	0.986	1.009	0.968	0.990	1.210
	25	0.978	0.978	1.014	0.947	0.983	1.360
	5	0.997	0.997	1.002	0.989	0.997	1.070
Methanol
	15	0.990	0.990	1.007	0.968	0.990	1.160
	25	0.982	0.982	1.012	0.949	0.984	1.220
	5	0.998	0.998	1.002	0.981	0.994	1.140
Ethanol
	15	0.994	0.994	1.005	0.944	0.983	1.300
	25	0.986	0.986	1.009	0.917	0.974	1.360
	5	0.998	0.998	1.002	0.993	0.998	1.040
Ethylene Glycol
	15	0.994	0.994	1.004	0.980	0.994	1.120
	25	0.988	0.988	1.008	0.966	0.990	1.200