tekmar 552 Thermostat User Manuals - Manual (Page 3)

© 2014 552_U - 09/14
3 of 12 A Watts Water Technologies Company
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.
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
boiler for heating.
or
MIN or MAX
Reached the room minimum or maximum.
or
MIN FL or MAX FL
Reached the floor minimum or maximum.