tekmar 557 Thermostat Installation - Manual (Page 43)

© 2014 557_D - 09/14
43 of 52 A Watts Water Technologies Company
Programmable Schedules Section J
Energy savings can be achieved by lowering the heating temperature and increasing
the cooling temperature when the building is unoccupied or during the night.
When operating on a programmable schedule, a or a symbol is shown in the
home menu. The or indicates the current operating temperature.
All schedules are stored in permanent memory and are not affected by a loss
of power.
Display Action
Day temperature
Night temperature
This thermostat can operate on a programmable schedule in order to automatically
lower the room temperature setting. Options include:
Turning off the schedule (OFF)
Operate a schedule that applies only to this thermostat zone (ZONE)
The ability to operate one of the four system-wide schedules as a master
(Schedule Master 1 through 4*)
Join one of the four system-wide schedules as a member (Schedule Member
1 though 4*)
*Requires the thermostat to be connected to a tekmarNet ® system.
Once the type of schedule has been selected, the thermostat can support schedules
that have either:
2 events per day
4 events per day
Schedules with four events per day are common for residential use while two events
per day are common for commercial installations.
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 or cool down from the temperature to the temperature. The thermostat has
the option to use Optimum Start to predict the heat up or cool down rate of the room.
When Optimum Start is set to On, the heating or cooling 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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