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CNA-Series Tankless Heater
CNA-SKID Series System (includes CNA and reverse configuration CNAR)
Models 480/600V Total kW
CNA & CNAR-108
216
(108 kW each)
CNA & CNAR-126
262
(126 kW each)
CNA & CNAR-144
288
(144 kW each)
Models 480/600V Total kW
CNA & CNAR-108
216
(108 kW each)
CNA & CNAR-126
262
(126 kW each)
CNA & CNAR-144
288
(144 kW each)
Output heating capacity is reduced if these heaters are installed on 415V, 400V, or 380V 3-ph .
Contact the factory to supply this information .
Satisfactory performance of the heater is dependent upon a specific flow rate vs temperature rise capability . If the
desired temperature is not achieved, please verify the following:
1 . Circuit breaker is on and rated for the maximum power draw .
2 . Heater is drawing the proper current for the supply voltage on all 3 phases .
3 . All 3 phase indicator lights are lit (not flashing) indicating maximum power draw and maximum
amperage is being drawn .
4 . Flow rate and temperature rise in the water heating process are compatible with the heater specifications .
5 . Verify there is no additional supply of cold water entering the line downstream of the heater .
14
Temperature Rise (gpm & °F)
4 gpm
8 gpm
12 gpm
ΔT °F
ΔT °F
ΔT °F
120
143
Temperature Rise (Lpm & °C)
15 .1 Lpm
30 .3 Lpm
45 .4 Lpm
60 .6 Lpm
ΔT °C
ΔT °C
ΔT °C
67
79
8/1/2021
16 gpm
20 gpm
24 gpm
ΔT °F
ΔT °F
ΔT °F
90
74
61
107
86
71
120
96
82
75 .7 Lpm
90 .8 Lpm
113 .6 Lpm
ΔT °C
ΔT °C
ΔT °C
50
41
34
59
48
39
67
53
46
30 gpm
40 gpm
50 gpm
ΔT °F
ΔT °F
ΔT °F
49
36
29
57
43
34
66
49
39
151 .4 Lpm
189 .3 Lpm
ΔT °C
ΔT °C
ΔT °C
27
20
16
32
24
19
37
27
22
Bradley • 215-1814 Rev. G
Installation
60 gpm
70 gpm
ΔT °F
ΔT °F
24
21
28
25
33
28
227 .1 Lpm
265 Lpm
ΔT °C
ΔT °C
13
12
16
14
18
16
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