13
Installation
SNA-Series Tankless Heater
Bradley •
215-1815 Rev. E; ECN 16-17-016
6/10/2016
Perform Operational Test No. 2
8
A
Turn on hot water faucet/fixture/process
(min flow rate of 1 .5gpm/5 .7 lpm) . The heater
should activate immediately .
B
Turn off hot water faucet/fixture/process .
The flow sensor will deactivate and shut
off power to the heater .
If the water flow exceeds maximum heating capacity of the heater, the temperature of water at the outlet
may be lower than the temperature selected on the controller. See table below to determine maximum
temperature rise capabilities.
Each model has precise specifications for temperature rise capabilities.
SNA-Series
Maximum Temperature Rise (GPM & °F)
Low Flow Activation (eyewash)
(1.5 gpm)
High Flow Activation (drench shower) (15 gpm)
Models
480/600V
kW Low/
High
2 .5 gpm
Δ
T °F
3 gpm
Δ
T °F
5 gpm
Δ
T °F
8 gpm
Δ
T °F
15gpm
Δ
T °F
20gpm
Δ
T °F
25 gpm
Δ
T °F
30gpm
Δ
T °F
35gpm
Δ
T °F
40 gpm
Δ
T °F
45gpm
Δ
T °F
50gpm
Δ
T °F
SNA-363
12/36
33
27
16
10
16
12
10
SNA-543
18/54
49
41
25
15
25
18
15
12
10
SNA-633
24/63
57
57
29
20
29
22
17
15
12
SNA-723
27/72
73
61
37
23
32
24
19
16
14
10
SNA-1083 40/108
109
90
54
34
49
36
29
24
21
18
16
14
SNA-1263 47/126
128
106
64
40
57
43
34
28
24
21
19
17
SNA-1443 54/144
147
122
73
46
65
49
39
33
28
24
21
19
Maximum Temperature Rise (LPM & °C)
Low Flow Activation (eyewash)
(5.7 lpm)
High Flow Activation (drench shower) (56.8 lpm)
Models
480/600V
kW Low/
High
9 .5 lpm
Δ
T °C
11 .3 lpm
Δ
T °C
18 .9 lpm
Δ
T °C
30 .3 lpm
Δ
T °C
56 .7 lpm
Δ
T °C
75 .6 lpm
Δ
T °C
94 .5 lpm
Δ
T °C
113 .4 lpm
Δ
T °C
132 .5 lpm
Δ
T °C
151 lpm
Δ
T °C
170 .3lpm
Δ
T °C
189 .3lpm
Δ
T °C
SNA-363
12/36
18
15
9
6
9
7
6
SNA-543
18/54
27
23
10
8
14
10
8
7
6
SNA-633
24/63
32
32
16
11
16
12
9
8
7
SNA-723
27/72
40
34
21
13
18
13
11
9
8
6
SNA-1083 40/108
60
50
30
19
27
20
16
13
12
10
9
8
SNA-1263 47/126
71
59
36
22
32
24
19
16
13
21
11
9
SNA-1443 54/144
82
68
41
26
36
27
22
18
16
13
21
11
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