Watts tekmar 294 - Override Menu Modes; Override Mode Descriptions

IOM-T-294 2205 © 2022 tekmar
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Commissioning, testing and troubleshooting features of the
294 are accessed through the Override menu. The Manual
Override has five different modes including:
Automatic
The normal operating mode for the control is automatic.
Purge Override
In this mode, the control overrides the normal operating mode
and operates pumps. This mode is useful for purging air out of
the system.
• System pump is turned on.
• DHW pump: operation of the DHW pump is dependent on
the settings in the Domestic Hot Water Call menu.
• Purge will operate for a fixed period of 72 hours. After the
purge period expires the control will revert to Automatic
operation. The purge override can also be terminated by
selecting automatic.
Max Heat Override
In this mode, the control overrides the normal operating mode
and operates the system to maintain the boiler maximum tar-
get. This function is useful on start-up, commissioning, and
also when drying sheet rock and paint in the building.
• Operation of the equipment is dependent on the system.
• WWSD, DHW and Setpoint Priority are disabled during
Max Heat.
• Max Heat will operate for 1 hour. After the timeout period
elapses the control will revert back to Automatic mode. The
max heat override can also be
terminated by selecting automatic.
Hand Override
In this mode, the control overrides the normal operating mode
allows for manual operation of the equipment. This mode is
useful for testing and assisting with troubleshooting.
• Operation of the equipment is dependent on the settings in
the Settings menu.
• Hand mode will operate for 1 hour. After the timeout period
elapses the control will revert back to Automatic mode. The
hand override can also be terminated by selecting automatic.
Off Override
In this mode, the control overrides the normal operating mode
and forces the entire system into standby. This mode is useful for
conducting maintenance or change out of mechanical compo-
nents in the system.
• The Off override can be terminated at any time by selecting
automatic.
Override Menu