© 2013
400_D - 09/13
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The “$aving” icon is displayed when energy is being saved.
The following features reduce energy consumption.
Network Schedules
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Adding a schedule to a tekmarNet
®
system is both easy
and valuable. A Timer 033 provides scheduling with up to
4 events per day for every tekmarNet
®
Thermostat. Turning
down the room temperatures when they are unoccupied
reduces boiler on-time and energy consumption which
helps save money and the environment.
One-Touch Economy
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--------------------------
A User Switch 479 allows for one-touch overrides of the
system. For example, if leaving the building for vacation,
simply press the “Away” button and all the thermostats
will immediately operate at a lower temperature, instead
of having to walk around the building lowering the heating
temperature setting and raising the cooling temperature
setting on each thermostat.
DHW Tank During Away
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-----------------------
In addition to the One-Touch setback, a User Switch 479
also allows the user to press the ‘Away’ button and tell the
House Control 400 to ignore DHW Calls, preventing the
DHW tank from unnecessarily heating up when no one is
living in the building.
Warm Weather Shut Down (WWSD)
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During warmer weather, heating of the rooms is typically no
longer required. To prevent energy waste from unnecessary
boiler operation, the control goes into Warm Weather Shut
Down (WWSD) when the outdoor temperature rises above
the WWSD temperature set in the Adjust menu.
Energy Saving Features
Section G
Further Savings!
Use a Timer 033 with programmable schedule #1 to
gain the WWSD Unoccupied setting. This provides an
additional WWSD temperature that can be set even lower
for Unoccupied and Sleep time periods.
This setting will appear after WWSD in the Adjust
menu if a Timer 033 or User Switch is present on the
system.
Zone Synchronization
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-------------------------
Another feature of the House Control is Zone Synchronization.
In typical zoned systems, the thermostats operate on a stand-
alone basis. This means that a zone turns on and off as
required without any regard for other zones. The net effect
is random operation of the zones causing short cycling of
the heat source. tekmarNet
®
thermostats communicate to
ensure that their cycles are synchronized. Energy is saved
by ensuring zones requiring heat operate on the same cycle,
therefore reducing short cycling of the boiler.
Zone Post Purge
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------------------------------
When the last zone is nearly satisfied for heating, the boiler is
shut off and the zone continues to operate together with the
boiler system pump system pump. This purges the residual
heat from the boiler into this zone. The control continues this
purge for a maximum of two minutes. The control will stop
the purge if the boiler supply temperature drops below the
boiler minimum setting.
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