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Conversion Instructions
The conversion of a commercial electric water heater may require modification to the total input (kW), the voltage or
the phase. The conversion may involve modification to one, two or all three of these electrical characteristics.
Disconnect from power supply before attempting the conversion procedure. Additional safety lockout procedures
may be required!
Read all instructions before proceeding with the conversion procedure. Failure to do so may result in property
dammage, personal injury or death.
Water Heater Preparation
Before you start the conversion, make sure that you have the proper conversion kit model number in order to perform
the desired conversion.
If the water heater needs to be shipped after the conversion is completed, make sure not to damage the cardboard
box when performing the conversion. A dash line has been punched into the front of the cardboard box to give access
to the control panel and element panel of the water heater. Gently remove the dashed portion of the box to gain
access to the water heater. If there is no dash line punched into the cardboard box, the box will have to be removed
completely by removing staples and then sliding it upward over the water heater.
Open the element access panel and electrical junction box (if required) by releasing the two turn lock screws using
a flat screw driver.
Remove the fiberglass insulation from the element panel to expose the elements.
Conversion process shall be performed before initial installation. Otherwise, special care shall be taken to
disconnect power and to completely drain the tank before attempting next steps.
Wattage Conversion (kW)
1- Open the conversion kit box and check each element to ensure that they have the correct voltage and wattage
marking on the flange for your conversion.
2- Measure the ohm resistance across the terminals of each element. Elements must be disconnected from the
circuit. Refer to Table 3 for ohms values for all elements used in commercial electric water heater. Ohms resis-
tance should be within ± 5% of the values in Table 3.
3- Remove both wires from the element installed on the tank, one element at a time.
4- Remove the four bolts securing the element to the tank using a 5/8" socket.
5- Remove the element and gasket.
6- Clean the tank flange surfaces of any dirt or debris.
7- Install the new element and gasket provided in the kit. Use four new 5/8" screws provided and tighten them in a
diagonal pattern. Do not over tighten the screws or damage will occur.
8- If a thermostat was installed on that element, make sure to re-install such thermostat bracket over the element.
Insert the thermostat behind the bracket. Check that the thermostat is in contact with the tank. If necessary, bend
the clips to provide more pressure.
9- Reconnect the wires to the element terminals. Consult the wiring diagram located inside the control panel door
for proper connections.
10- Repeat steps 3 thru 9 for all elements on the tank.
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