Installation Instructions 15
059840‐00 Rev. A
Heat‐Timer Corp.
3. Position the Enclosure base in the desired location, and then secure the base in place using four screws
(provided) through the mounting holes (1) on the back of the Enclosure base.
Figure 5:
EPU‐D Enclosure Base
Mounting the Display Module
1. Turn the EPU‐D display module (1) over to reveal the battery (2). Remove the plastic tab to activate the
battery.
Figure 6:
EPU‐D Display Module Battery Location
NOTE: The battery is a coin lithium battery (CR2032 ‐ Heat Timer p/n 020002‐00) that is used to maintain
the control’s date and time during power outages. The battery can maintain the clock for up to a total of
100 days.
2. Position the Display Module into the base and secure it in place using the middle screws removed in Step 2
above.
NOTE: Do not replace the Enclosure Wiring Cover until all wiring is completed.
3. Continue with “Wiring the EPU‐D” on page 16.
CAUTION
Do not activate the battery unless you plan to keep the control continuously
powered. If the control has no power, the battery will lose its charge in 100 days.
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1
1
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