Installation Manual

16
WHL-019 REV. 12.17.14
PERFORMANCE SPECIFICATIONS FOR ALL MODELS
BTUH
Efficiency
Temperature Rise
(°F)
40
50
60
70
80
90
100
110
120
130
140
(°C)
22
28
33
39
44
50
56
61
67
72
78
100,000
96%
GPH
298
240
202
173
152
136
123
110
101
94
88
GPM
5
4
3.4
2.9
2.5
2.25
2
1.8
1.7
1.6
1.5
LPH
1128
908
765
655
575
515
466
416
382
356
333
LPM
18.8
15.1
12.75
10.9
9.6
8.6
7.8
6.9
6.4
5.9
5.6
130,000
96%
GPH
384
309
260
222
195
175
158
141
130
120
112
GPM
6.4
5.2
4.3
3.7
3.25
2.9
2.6
2.4
2.2
2
1.9
LPH
1454
1170
984
840
738
662
598
534
492
454
424
LPM
24.25
19.5
16.4
14
12.3
11
10
8.9
8.2
7.6
7
160,000
96%
GPH
470
378
317
271
238
213
192
173
159
147
137
GPM
7.8
6.3
5.3
4.5
4
3.6
3.2
2.9
2.7
2.5
2.3
LPH
1779
1431
1200
1026
901
806
727
655
602
556
519
LPM
29.7
23.9
20
17.1
15
13.4
12.1
10.9
10
9.3
8.7
199,000
96%
GPH
582
468
392
335
294
263
237
213
196
181
169
GPM
9.7
7.8
6.5
5.6
4.9
4.4
4
3.6
3.3
3
2.8
LPH
2203
1772
1484
1268
1113
996
897
806
742
685
640
LPM
36.7
29.5
24.7
21.1
18.6
16.6
15
13.4
12.4
11.4
10.7
Table 2 – Recovery on rating plate is based at 94% thermal efficiency at 70
o
Fahrenheit rise, as required by ANSI
PERFORMANCE EQUATIONS
Rated Input x .9
GPM = Temp Rise (
o
F) x 500 GPH = GPM x 60
PART 4 – HEATER PIPING
Failure to follow the instructions in this section WILL VOID the warranty and may result in property damage, serious injury, or death.
DO NOT pipe this water heater with black iron, galvanized steel, steel, or lead pipe. Doing so will result in premature product failure and
property damage, and WILL VOID the product warranty.
A. GENERAL PIPING INFORMATION
Use two wrenches when tightening water piping at heater. Use one wrench to prevent the heater return or supply line from turning.
Failure to prevent piping connections from turning could cause damage to heater components.
The heater control module uses temperature sensors to provide both high limit protection and modulating temperature control. The
control module also provides low water protection by sensing the water level in the tank. Some codes/jurisdictions may require
additional external controls.
Never use dielectric unions or galvanized steel fittings when connecting to a stainless steel storage tank or heater. Use only copper or
brass fittings. Teflon thread sealant must be used on all connections.