tekmar 542 Thermostat Installation - Manual (Page 20)

© 2007 D 542 - 08/07 20 of 28
Cool Groups Section G
Cool Group 1 Cool Group 2
Master Master Member Member Member
tN4
The thermostat can operate with other thermostats on a
tN4 network in a cool group. When operating as a cool
group, the air temperature readings of all the thermostats
in the group are averaged. A single thermostat controls the
operation of the cooling equipment and is called the cool
group master. This operation is based on the averaged
temperature of all the thermostats in the cool group.
In a cool group, one thermostat is assigned as the cool
group master. The cool group master operates the cooling
equipment for the group. The other thermostats are assigned
as members of the cool group. Cool groups are assigned
using a number 1 through 16 and there can be up to a
maximum of 16 cool groups on the entire tN4 network.
Each cool group can have up to 24 members.
• • To assign a thermostat as the cool group master of
group 1, go to the Adjust menu. Select Cool Master and
set to 01.
• • To assign a thermostat as a cool group member of group
1, go to the Adjust menu. Select Cool Member item and
set to 01.
• • Repeat the same steps to set up additional cooling
groups.
Time Clock Section H
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. • Use the Time menu to set the correct time.
Setting the Schedule Section I
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.
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 Heat 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 Heat 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 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.