Specification

Heavy Duty Electric Commercial Water Heaters
3
SURFACE MOUNTED THERMOSTATS IMMERSION THERMOSTATS
TANK CAPACITY IN GALLONS TANK CAPACITY IN GALLONS
50 85 120 50 85 120 175
N/A N/A N/A N/A N/A N/A E175A-3-G
ES50-6-G ES85-6-G ES120-6-G E50-6-G E85-6-G E120-6-G E175A-6-G
ES50-9-G ES85-9-G ES120-9-G E50-9-G E85-9-G E120-9-G E175A-9-G
ES50-12-G ES85-12-G ES120-12-G E50-12-G E85-12-G E120-12-G E175A-12-G
ES50-15-G ES85-15-G ES120-15-G E50-15-G E85-15-G E120-15-G E175A-15-G
ES50-18-G ES85-18-G ES120-18-G E50-18-G E85-18-G E120-18-G E175A-18-G
ES50-24-G ES85-24-G ES120-24-G E50-24-G E85-24-G E120-24-G E175A-24-G
ES50-27-G ES85-27-G ES120-27-G E50-27-G E85-27-G E120-27-G E175A-27-G
ES50-30-G ES85-30-G ES120-30-G E50-30-G E85-30-G E120-30-G E175A-30-G
ES50-36-G ES85-36-G ES120-36-G E50-36-G E85-36-G E120-36-G E175A-36-G
ES50-45-G ES85-45-G ES120-45-G E50-45-G E85-45-G E120-45-G E175A-45-G
ES50-54-G ES85-54-G ES120-54-G E50-54-G E85-54-G E120-54-G E175A-54-G
N/A N/A N/A N/A N/A N/A E175A-60-G
N/A N/A N/A N/A N/A N/A E175A-72-G
N/A N/A N/A N/A E85A-81-GS E120A-81-GS E175A-81-G
N/A N/A N/A N/A N/A N/A E175A-108-G
INPUT
KW
3
6
9
12
15
18
24
27
30
36
45
54
60
72
81
108
MODEL NUMBERS
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WATER TEMPERATURE RATINGS
MINIMUM MAXIMUM HIGH
MODEL
TANK CAPACITY
THERMOSTAT DELIVERED DELIVERED TEMPERATURE
NUMBER GALLONS LITERS TYPE TEMPERATURE TEMPERATURE LIMIT
ES50 50 189 Surface 90°F 160°F 180°F
32.2°C 71.1°C 82.2°C
ES85 85 322 Surface 120°F 180°F 190°F
48.8°C 82.2°C 87.8°C
ES120 119.9 454 Surface 120°F 180°F 190°F
48.8°C 82.2°C 87.8°C
E50(A) 50 189 Immersion 90°F 190°F 200°F
32.2°C 87.8°C 93.3°C
E85(A) 85 322 Immersion 90°F 190°F 200°F
32.2°C 87.8°C 93.3°C
E120(A) 119.9 454 Immersion 90°F 190°F 200°F
32.2°C 87.8°C 93.3°C
E175A 175 662 Immersion 90°F 190°F 200°F
32.2°C 87.8°C 93.3°C
Fuse type – “G” in the model number represents Class G fuses.
Thermostat staging – E models (Immersion thermostat)
24 kW and above (18 kW for 208V), may be ordered with
additional thermostat(s) for staging. Add “S” after fuse type
designation. Recommended on 81 and 108 kW models.
Example: E175A-81-G becomes E175A-81-GS.
ASME Construction – E models (Immersion Thermostat)
may be ordered with ASME certified construction. Add “A”
after capacity designation. Example: E85-36-G becomes
E85A-36-G.
UL Sanitation Compliance – all models except E175A
are UL Sanitation (NSF5) compliant when equipped with the
optional ring seal kits. E(S)50 – AS38355, E(S)85 – AS38356,
E(S)120 – AS38357.
Solid State Low Water Cut-off – E models (Immersion
Thermostat) may be ordered with probe type cut-off for field
installation (AP8408).
Integral Fusing – all models have integral fusing for each
element.
Anode Rods – two (2) magnesium anodes are installed in
each tank to ensure long life and corrosion resistance.
Temperature and Pressure Relief Valve – CSA/ASME rated
and factory installed.
Electrical Connections – pre-wired, accessible control box
with multiple knock-outs on side in size selections to match
the National Electric Code. Sizes range from 1/2" to 2-1/2".
A grounding screw is provided for attaching an equipment
grounding conductor.
Terminal Block – all models are equipped with U.L. listed
terminal blocks for simplicity of installation. The terminal block
will accept either copper or aluminum field connect wire.
120 Volt Control Circuit – all units are furnished with a
fused 120 volt control circuit. All controls (thermostats, high
temperature limit, etc.) are operated off of this basic 120 volt
control circuit. This circuit is created by an internal multi-tap
transformer of unique design that has four (4) taps for the
primary voltages, 208, 240, 277 and 480.
Water Connections – hot outlet and cold inlet for the 50-
120 gallon capacity models are 1-1/2" (175 gallon models
are 2-1/2") NPT dielectric nipples which prevent excessive
turbulence of heated water and results in optimum tank draw.