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Maintenance Menu
The Maintenance menu is used to perform maintenance activities on the system. It should only be used by
system installers.
Bypass Mode
Selections: Auto, Bypass
Menu Path: /Maintenance > Bypass Mode
Description:
This option overrides the automatic operation of the heating system.
When Bypass is selected, the EPU‐D output relays are activated. The
boiler burner is turned on and the boiler will run constantly on its own
limits, or the motorized valve is fully opened.
NOTE: When Bypass is selected, a warning screen displays.
When Auto is selected, the EPU‐D controls the heating system
automatically according to its programming.
Heat‐Timer Corp.
EPU‐D Display and Programming 35
Default: Auto
059840‐00 Rev. A
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