Keltech CNA-36 Installation Manual page 12

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 .
12
Temperature Rise (GPM & °F)
4 gpm 8 gpm 12 gpm 16 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
7/13/2015
20 gpm 24 gpm 30 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 ΔT °C
50 41 34
59 48 39
67 53 46
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
27 20 16
32 24 19
37 27 22
Keltech • 215-1814 Rev. C; ECN 150010
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