ThermaPak Hydronic Coil Heating Capacity (MBH)

AC-WPAK-60

GPM	Entering Water Temperature (°F)
	120	140	160	180	200
2	20.5	30.0	39.1	48.1	57.2
4	25.2	35.6	46.1	56.6	67.1
6	26.6	37.4	48.3	59.2	70.2
8	27.2	38.2	49.2	60.4	71.6
10	27.5	38.7	49.3	61.1	72.3

At 550CFM and 70°F Entering Air Temperature

AC-WPAK-90

GPM	Entering Water Temperature (°F)
	120	140	160	180	200
2	26.8	39.2	51.6	63.4	75.2
4	36.0	50.8	65.7	80.8	95.8
6	39.0	54.9	70.9	87.0	103.1
8	40.4	56.8	73.3	89.9	106.5
10	41.2	57.9	74.7	91.5	108.4

At 850CFM and 70°F Entering Air Temperature

AC-WPAK-120

GPM	Entering Water Temperature (°F)
	120	140	160	180	200
2	31.7	46.2	61.2	75.1	89.0
4	45.6	64.2	83.0	102.0	120.9
6	50.6	71.2	92.0	112.9	133.8
8	53.1	74.7	96.4	118.2	140.1
10	54.6	76.7	98.9	121.2	143.6

At 1150CFM and 70°F Entering Air Temperature

Water Pressure Drop (in feet @ 180°)

GPM	AC-WPAK-60	AC-WPAK-90	AC-WPAK-120
2	0.4	0.4	0.5
4	1.4	1.6	1.7
6	3.0	3.3	3.7
8	5.2	5.7	6.3
10	7.9	8.7	9.6

To calculate Leaving Air Temperature (LAT) use the following formula:
LAT = (BTUH / (1.08 X CFM)) + 70