557_U
08/12
tekmarNet® Thermostat 557
User Manual
Zoning
Replaces: New
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© 2012 557_U - 08/12
This brochure will provide you with the information you need to benefit the most
from your tekmarNet® thermostat. Please visit www.tekmarControls.com for more
detailed information on this or any other tekmar product.
This thermostat provides heating and cooling for one zone in your building. It will
maintain your air temperature with an on board room sensor. Floor temperature
control may also be enabled in this thermostat when a floor sensor is installed.
This thermostat can lower its temperature setting at night or when you are away
from the house.
Touchscreen Adjustments
The touchscreen of this thermostat makes it easy to change commonly used settings.
Touch any item to adjust it’s setting. You will hear a “tick” sound each time you touch
the display. When you are finished making changes, touching the Home button will
return to the Home screen. If you do not touch the screen for 3 seconds, the Home
screen is automatically displayed.
Display Humidity, Heat &
Adjust
the Time
Adjust the
Schedule
Cool settings, Floor or
Outdoor temperature
Room
Temperature
Turn the Fan on
Away Key
Switch between
Auto, Heat,
Cool, Off &
Emergency Mode
Adjust the
Home
Button
Home Button.
Return to the ‘Home’
Screen from any menu.
Press and hold for 3
seconds to access the
programming menus.
Temperature
Display of the time, schedule and the away key on the Home screen is optional and
can be turned on or off in the programming menus.
To enter the programming menus, press and hold the Home button for 3
seconds.
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© 2012 557_U - 08/12
Display Symbols
This thermostat will display symbols on its screen in order to indicate what mode it
is in, what temperature it is operating at, or what equipment it is trying to turn on.
This section describes each of those symbols.
HEAT ON
Heat is turned on.
COOL ON
Cooling is turned on.
FAN
The fan is turned on.
%RH
Humidifying
%RH
Dehumidifying
SUN
Operating at the occupied (day) temperature.
MOON
Operating at the unoccupied (night) temperature.
tekmarNet
Communication is present.
WARNING SYMBOL
Indicates an error is present.
ARROWS
Adjust the displayed setting.
®
SCENE AWAY
Operating at Away temperature.
TEMPORARY HOLD
Hold for 3, 6, 9 or 12 hours.
WWSD
The outdoor air temperature is above the Warm Weather
Shut Down setting which shuts off the heating system.
COOL
Radiant floor cooling system is on.
MIN or MAX
or
or
Reached the room minimum or maximum.
MIN FL or MAX FL
Reached the floor minimum or maximum.
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© 2012 557_U - 08/12
Adjust the Temperature
To change the heating or cooling set temperature, touch the or arrows to
select a preferred temperature setting. Press the home button to accept the setting
or leave the screen untouched for several seconds. To toggle between changing
the heating or cooling setting, press the H <> C key. This thermostat is capable of
controlling the floor or air temperature.
adjusts
Note: The temperature is not adjustable if the thermostat is in the Away scene, the Off
mode or has been set to the “Limited” or “Secure” access level by the installer.
Adjust the Temperature - Temporary Hold
Temporary hold allows a user to change the temperature for a period of time and then
automatically return to the permanent temperature setting. This is especially useful
in commercial buildings that are in use for short amounts of time. When selected,
touching the up or down arrows changes the temperature for either 3, 6, 9 or 12
hours. If the thermostat is using a schedule, ‘Schd’ provides a temporary hold until
the next schedule event time. After the temporary hold time expires, the thermostat
returns to normal operation. By default, the temporary hold feature is off.
When the temporary
hold feature is enabled,
touching the up or
down arrow displays
‘TEMPORARY HOLD’.
Use the Up or Down
arrow to select a
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temperature.
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Tap the hour
setting until
the preferred
length of time
is displayed.
Cancel the
temporary
hold.
‘HOLD’ is displayed while the
thermostat is operating at the
temporary hold temperature.
© 2012 557_U - 08/12