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1) Disconnect (unplug) the water heater from 120 volt power source.
2) Latches secure the black surround hood to the appliance body with swell-actuation type fasteners.
When secured, the latches are in the horizontal position. To remove the surround, all latches must
be in the vertical position (120T shown, Figure 1).
3) DIN Rail Installation.
a. Determine the rail mounting location. For all 120T and Commander (UCG) models with serial
numbers WG-------- and after, mounting holes should already be placed on the jacket head.
Mounting locations should be verified with the mounting templates located in this guide; there
are specific mounting templates for each heater. Cut the mounting templates at the specified
locations to ensure that template is correctly aligned.
WARNING: Incorrect alignment of mounting template can cause the DIN rail to sit
incorrectly and the water heater to not reassemble correctly.
b. Figure 2 shows the existing DIN rail mounting holes on 120T product. The mounting template
for the 120T product is shown on the right.
c. If mounting holes are needed, use the supplied screw to drill through the jacket head at the
stated locations.
Pre-existing DIN
rail mounting holes
DIN Rail Installation
Figure 1
Figure 2
UCG/ 120T
Installation Only
3
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