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Specifications continued-
Table 2: Water Heater Capacities
MODEL
Tank
Capacity
(Gal)
Coil
Volume
(Gal)
Coil Heat
Transfer Area
(Sq Ft)
Approximat
e
Dry Weight
(Lbs)
Approximate
Wet Weight
(Lbs)
60-Gal. 60 2.5 14.2 210 695
75-Gal. 75 2.5 14.2 236 832
115-Gal. 115 2.5 14.2 340 1248
Table 3: Electric Backup Water Heater Ratings
MODEL
First Hour
Supply
(Gallons)
Standby Heat
Loss Rating
(°F/Hr)
60-Gal 84 1.1
75-Gal 97 0.9
115-Gal 124 0.7
Solar Single-wall Heat Exchanger Flow Specifications
Heat Exchanger Pressure Drop Curve
0.00
0.05
0.10
0.15
0.20
0.25
0.30
0.35
0.40
012345678910
Flowrate (GPM)
Total Pressure Drop
(PSI))
0.00
0.10
0.20
0.30
0.40
0.50
0.60
0.70
0.80
0.90
Total
Head Loss(Feet)
Figure 2 – Solar Heat Exchanger Pressure Drop Chart