Manualshelf

Install Instructions

ManualsBrandsTekmar ManualsHeating SuppliestekmarNet Thermostat - One Stage Heat, One Stage Cool, Fan
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© 2015 554_D - 02/15
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A Watts Water Technologies Company
Cooling Operation
Set Cool Temperature
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The thermostat operates an air conditioner to provide cooling. The “Cool On” symbol
is shown on the display when the thermostat is cooling.
Cooling Cold Weather Shut Down
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When the outdoor air temperature falls below the Cooling Cold Weather Shut Down
(CWSD) setting on the thermostat, the cooling system is shut off.
Room Min and Max Limits
Heating and cooling minimum and maximum temperature settings are available in
the Set Temp menu. These allow the installer to select start and stop limits for the
temperature settings in both heating and cooling for the User and Limited access
levels. This is useful in commercial installations and child/guest bedrooms where
availability of the full temperature setting range may not be desirable.
Mode Operation
The thermostat includes a mode key. Available modes are:
Heat ― Allows heating
Cool ― Allows air cooling
Auto ― Automatically switches between heating and cooling as necessary. The
interlock time is applied when switching from heating to cooling or from cooling
to heating.
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Hydronic Pump and Valve Operation
Exercising
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When connected to a tekmarNet
®
system control, the thermostat exercises the heat relay for
10 seconds every 3 days. Exercising helps prevent zone valves or zone pumps from failing
due to precipitate buildup. During exercising, the thermostat shows “TEST” on the display.
Flushing
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The flushing feature is for open-loop systems that use a domestic hot water tank as a
heat source. Flushing ensures that fresh potable water is circulated through the system
once each day. If the thermostat is connected to a tekmarNet
®
system control with the
Flushing feature turned on, the thermostat will display “FLUSHING” for the duration of
the flushing operation.