tekmar 521 Programmable Thermostat User Manuals - Manual (Page 2)

Sa
Floor
F
F
MIN
Heat On Cool On
Room Floor
Heat Cool
Off
MAX
MODE
Fr Th We Tu Mo Su
P
© 2014 521_U - 01/14
2 of 8 A Watts Water Technologies Company
This brochure will provide you with the information you need to benefit the most
from your tekmar Thermostat. Please visit www.tekmarControls.com for more
detailed information on this or any other tekmar product.
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.
User Interface
HEAT ON
Heat is turned on.
COOL ON
Cooling is turned on.
FAN
The fan is turned on.
MODE HEAT
The heating system is
allowed to operate.
MODE COOL
The cooling system is
allowed to operate.
MODE OFF
The heating and cooling
systems are off.
SUN
Schedule operating at the
occupied temperature.
MOON
Schedule operating at the
unoccupied temperature.
WARNING SYMBOL
Indicates an error is present.
HOLD
Permanently holds the
temperature and overrides
the schedule.
MIN
The floor is at or below the
floor minimum temperature.
MAX
The floor has reached the
floor maximum temperature.