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© 2010
D 540 - 08/10
Schedules
Section D
Lowering the room temperature setting reduces the amount of fuel required to heat
the building resulting in energy savings. Likewise, raising the cooling temperature
results in energy savings.
This thermostat can follow a programmable schedule in order to automatically lower
the room temperature setting. A schedule master such as a Timer 033 is required
in order to gain programmable schedule functionality.
When operating on a programmable schedule, a symbol is shown, as well as a
or a . The or indicates the current operating temperature.
If a symbol does not appear, there is no schedule available.
Display
Action
Occupied temperature. No schedule.
Unoccupied temperature. No schedule.
Programmable schedule at occupied temperature.
Programmable schedule at unoccupied temperature.
Scene
Display
Room Temperature Setting
1
or
or
Follows programmable schedule or
operates at the occupied temperature.
2
Away
Away temperature.
3
Unoccupied
temperature.
Scenes (System Override)
Section E
When a programmable schedule is selected, there is a time delay for the temperature
to change from the temperature to the temperature.
The thermostat uses Optimum Start to predict the heat up and cool off rate of
the room. The optimum start feature allows the room to reach the set room
temperature by the time set in the programmable schedule. This applies for both
heating and cooling.
Scenes provide an easy way to save energy while away on vacation, or override a
pre-set schedule when plans change. tekmarNet
®
devices such as a User Switch
479 provide scene adjustment.
This thermostat responds to the following scenes:
While in the
Away
scene, the room temperature cannot be changed using the
or
buttons. Change the scene from
Away
to or to change the temperature.
