tekmar 552 Thermostat User Manuals - Manual (Page 10)

© 2014 552_U - 09/14
10 of 12 A Watts Water Technologies Company
Scene Menu Settings
Scenes
Scenes provide system-wide overrides to save energy. Select whether scenes are
not used (none) or if the away scene is available.
Away Key
If scenes are available, select if the away key is available or not.
When used in conjunction with a tekmarNet
® system control to operate the heating
appliance, the domestic hot water tank is not heated while in away scene.
Display Menu Settings
Units
Select temperature units in degrees Fahrenheit or Celsius.
Backlight Options
Select how the display backlight operates.
ON = The display is always at full brightness.
DIM = When thermostat is not in use, the display is dim but is at full brightness
when touched.
DIM = When the thermostat is not in use, the display is dim while the schedule
or scene is . The display backlight is off when the schedule or scene is . The
thermostat display is at full brightness when touched.
ON = When the thermostat is not in use, the display is at full brightness when
the schedule or scene is . The display backlight is off when the schedule or
scene is . The thermostat display is at full brightness when touched.
OFF = The display backlight is always off.
Secondary Item
Select whether the outdoor or floor temperature is shown in the upper right hand
corner in the Home menu.
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The schedules can be repeated every:
24 hours
7 days (week)
A 7 day schedule allows a unique time to be set to change the temperature for each
day of the week.
The schedule also includes a “SKIP” option that allows the programmable schedule to
skip a temperature change and remain at the previous temperature setting. The “SKIP”
setting can be found between 11:50 PM (23:50 hours) and 12:00 AM (0:00 hours).
When a programmable schedule is selected, there is a time delay for the room to
warm up from the temperature to the temperature. The thermostat has the
option to use Optimum Start to predict the heat up rate of the room. When Optimum
Start is set to On, the heating is started in advance to allow the room to reach the
Set Room temperature at the time set in the programmable schedule.
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Schedule Menu Settings (Continued)