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Mighty Therm 2 (200, 300, 400) Install & Operating
Model
gpm
(Size)
S
N
H
200
23
35
45
300
23
35
45
400
23
35
45
Notes:
1. S = soft water (1 to 7.5 grains hardness)
2. N = normal water (7.6 to 17 grains hardness)
3. H = hard water (more than 17 grains hardness)
4. gpm = gallons per minute, lpm = liters per minute, ft = head loss in feet, m = head loss in meters
5. Head loss is for heater's heat exchanger only
Table 9.
Water Flow Requirements - MT2V.
ft
Temp Rise °F
S
N
H
S
1.9
4.4
7.3
15
2.0
4.5
7.4
22
2.0
4.5
7.4
30
lpm
N
H
S
N
10
8
87
132
170
15
11
87
132
170
19
15
87
132
170
m
H
S
N
H
S
0.6
1.3
2.2
0.6
1.4
2.3
12
0.6
1.4
2.3
17
Page 21
Temp. Rise °C
N
H
8
6
4
8
6
11
8
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