tekmar 544 Thermostat Installation - Manual (Page 26)

© 2008 D 544 - 07/08 26 of 36
Fan Pre and Post Purge
To prevent the fan from operating before the coil reaches
the proper temperature, the operation of the fan can be
delayed. Likewise the operation of the fan may continue
after the heating or cooling has been completed.
• • All fan settings are found in the Adjust menu.
•
• During a call for heating, the fan turns on after the Fan
Delay time expires.
• • After heating or cooling, the fan turns off after the Fan
Purge time expires.
Setting the Schedule Section J
Master
Schedule 1
Members of
Schedule 1
Members of
Schedule 2
Master
Schedule 2 None
Zone
Schedule
Zone 1 2 3 4 5 6 7 8
To provide greater energy savings, you can operate the
thermostat on a programmable schedule. The schedule is
stored in memory and is not affected by loss of power to the
thermostat. A single thermostat zone or multiple devices
on the network can be assigned to follow the schedule of
one thermostat. On the 544, one schedule can be followed
for heating and for cooling.
Zone Schedule
A zone schedule only applies to the thermostat on which
the schedule is programmed. The thermostat follows the
zone schedule and the events are not communicated to
other thermostats.
Master Schedule
If the thermostat is connected to other thermostats, then the
thermostat can operate on a master schedule. You can set
up a maximum of four master schedules on the tN4 network.
A master schedule is available to all devices on the tN4
network. Master schedules simplify installation since one
master schedule may be used by multiple devices.
To create a master schedule:
1. Assign a thermostat as a schedule master by setting
the HeatCool Schedule item in the Schedule menu to
Master (MST) 1 to 4.
To follow a master schedule
1. Assign a thermostat to follow a master schedule,
by setting the HeatCool Schedule menu item in the
Schedule menu to Member (MBR) 1 to 4.
Once a thermostat is the master schedule, a clock symbol
and number appear on the display in the View menu. The
number identifies the master schedule number. This helps
you locate the master schedule if you need to change the
schedule.
Schedule Type
Day 24 Hour 5-2 5-11 7 day
Sa
•
•
• •
Su • •
Mo
• •
•
Tu •
We •
Th •
Fr •
Schedule Types
The schedule type determines when the schedule repeats
itself. This thermostat includes four schedule types:
•
• 24 Hour: Repeats every 24 hours.
•
• 5-2: Repeats on a weekly basis. However, it breaks the
week into the weekend and weekdays. This reduces the
amount of schedule event settings.
• • 5-11: Repeats on a weekly basis. However, it breaks
the week into Saturday and Sunday followed by the
weekdays. This reduces the amount of schedule event
settings.
• • 7 Day: Repeats on a weekly basis and allows for separate
event times for each day.
Time Clock Section I
The thermostat has a built-in time clock to allow the
thermostat to operate on a schedule. A battery
- less backup
allows the thermostat to keep time for up to 4 hours without
power. The time clock supports automatic adjustment for
Daylight Saving Time (DST) once the day, month, and year
are entered. Use the Time menu to set the correct time,
day, month, and year.
Daylight Savings Time Modes
Mode DST Start DST End
1 1st Sunday in April Last Sunday in October
2 2nd Sunday in March 1st Sunday in November