Tekmar tekmarNet 4 User manual

1 of 12 © 2007 U545 - 08/07
U545
08/07
tekmarNet®4 Thermostat 545
- User Brochure
Table of Contents
Display.................................................................... 2
Symbols Description............................................... 2
User Interface......................................................... 3
Viewing Current Temperatures............................... 4
Viewing the Room Set Temperature....................... 4
Adjusting the Room Set Temp (No Schedule)........ 5
Adjusting the Room Set Temp (Schedule).............. 5
Temporary Room Set Adjustment (Schedule)........ 5
Adjusting the Temporary Zone Hold ....................... 6
Choosing the Mode of Operation............................ 6
Setting the Floor Warming Temperatures............... 6
Setting the Fan On Time......................................... 6
Resetting the Filter Timer ....................................... 7
Viewing the Current Time ....................................... 7
Setting the Time ..................................................... 7
Selecting a Scene................................................... 8
Extended Absences................................................ 9
Viewing the Recorded High & Low Temperatures .. 9
Selecting a Schedule.............................................10
Units of Temperature .............................................11
Backlight................................................................11
Cleaning the Thermostat ......................................11
Error Messages .....................................................11
Warranty................................................................12
Congratulations
on the purchase of
your tekmar programmable
thermostat with communication.
This thermostat combines
easy-to-use programming with
advanced features to increase
both comfort and energy
efficiency.
Your tekmar thermostat allows
you to :
•
• Set a single schedule for your
heating and cooling system that
all of your tekmar thermostats
can follow.
•
• Adjust the time and date on all
your tekmar thermostats from a
single thermostat
•
• Automatically adjust for
Daylight Saving Time
•
• View the outdoor temperature on
all of your tekmar thermostats.
•
• Easily set up custom “Scenes” to
match your home and lifestyle.
•
• Easily override your tekmar
thermostats if you are planning an
extended absence.

© 2007 U545 - 08/07 2 of 12
Display
MODE OF OPERATION
Displays whether in heating or cooling
mode.
FIRST STAGE OF HEAT
Indicates when the first stage of heat is
operating.
SECOND STAGE OF HEAT
Indicates when the second stage of heat
is operating.
FIRST STAGE OF COOLING
Indicates when the first stage of cooling
is operating.
FAN 1
Indicates when Fan 1 is operating.
FILTER
Indicates that the Filter requires
replacement.
SCHEDULE MASTER
Indicates this thermostat is a schedule
master. The number indicates the
schedule group number.
tN4 COMMUNICATION
Indicates when a communication network
is detected.
COOL GROUP MASTER
Indicates this thermostat is a cool group
master.
LOCK
Indicates that the access levels are
locked. Also indicates when an item is
visible but not adjustable.
OPTIMUM START / STOP
Indicates that Optimum Start or Optimum
Stop is active.
WARNING
Indicates an error is present.
TEMPORARY HOLD
Indicates that the temperature has been
temporarily adjusted from the scheduled
event temperature.
SCHEDULED EVENT
Indicates the current scheduled event.
Symbols Description
Item Field
Displays an abbreviated
name of the selected item
Number Field
Displays the current value
of the selected item
Status Field
Displays the current status
of the control’s inputs,
outputs and operation
Menu Field
Displays the
current menu

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The control uses a Liquid Crystal Display (LCD) as the
method of supplying information on the operation of
the thermostat.
Access Levels
This thermostat has five access levels:
•
• SEC (Secure)
•
• LTD (Limited)
•
• USER (User)
•
• INST (Installer)
•
• ADV (Advanced).
This brochure only covers the features available in the SEC,
LTD and USER levels. Only qualified service people should
adjust the INST and ADV access levels.
Menu
All of the items displayed by the thermostat are organized
into seven menus:
Item
Each menu has several items. The abbreviated name of
the selected item will be displayed in the item field of the
display. To view the next available item, press and release
the Item button.
Adjustment
To make an adjustment to a setting in the thermostat:
1. Use the Menu button to select the appropriate menu.
2. Use the Item button to select the desired item.
3. Use the Up or Down button to adjust the setting.
Default Item
When you display an item in the View menu for more than
5 seconds it becomes the default item. After you navigate
other menus, the display reverts back to the default item
after 60 seconds of button inactivity.
The Time is the only exception. It can be displayed
indefinitely.
User Interface
Continue
to next Item
Continue to next Menu
Continue
to next Item
Continue
to next Item
•
• View
•
• Adjust
•
• Time
•
• Scene
•
• Schedule
•
• Monitor
•
• Miscellaneous
These menus are listed in the Menu Field on the top left
hand side of the display.
Use the Menu button to advance to the next menu.

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Viewing Current Temperatures
Viewing the Room Set Temperature
Use the View menu to view the current temperatures being sensed by the thermostat. To view the available temperatures,
use the Menu button to go to the View menu. Use the Item button to view the temperatures.
The Room Set temperature is the temperature that the
thermostat is currently set to maintain.
To view the Room Set temperature:
1. Use the Menu button to select the View menu.
2. Use the Item button to select Room Set.
Room Temperature
This is the current air temperature of the room being
controlled.
Cooling Average Temperature
If the cooling feature is being used on this thermostat, this
is the average air temperature in the area being cooled by
the thermostat.
Outdoor Temperature
If an outdoor sensor is connected, this is the current outdoor
air temperature.
Floor Temperature
If a floor sensor is connected to the thermostat, this is the
current floor temperature.
Remote Temperature
If a remote sensor is connected to the thermostat, this is
the current temperature at the remote sensor.

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Adjusting the Room Set Temperature (No Schedule)
To adjust the Room Set temperature when there is no
schedule in use:
1. Make sure you are in the VIEW menu. If not, press the
Menu button until VIEW displays in the top left corner.
2. Press the Item button to display the ‘Room’ or ‘Room
Set’ item.
3. Press the Up or Down button to enter the ‘Set Heat’
mode. Continue pressing the Up or Down button until
the desired temperature is displayed
4. Ten seconds after the adjustment has been made, the
display will return to the default item.
Adjusting the Room Set Temperature (Schedule)
If your thermostat is using a schedule, the current event of
Wake, UnOcc, Occ, Sleep or Away displays on the screen.
To change the temperature for a schedule event:
1. Use the Menu button to select the Adjust menu.
2. Use the Item button to select the Set Heat item for the
event you would like to change (Wake, UnOcc, Occ,
Sleep, or Away)
3. Use the Up or Down buttons to change the set
temperature for the event.
Temporary Room Set Adjustment (Schedule Only)
If your thermostat is using a schedule and you would like
to temporarily change the current heating temperature:
1. Make sure you are in the View menu. If not, press the
Menu button until VIEW displays in the top left corner.
2. Press the Item button to select either the ‘Room’ or
‘Room Set’ item.
3. Press the Up or Down button to enter the ‘Set Heat’
mode. The words ‘TMPY HOLD’ will appear indicating
that you are only making a temporary change. Continue
pressing the Up or Down button to adjust the desired
temperature.
4. Ten seconds after the adjustment has been made, the
display will return to the default item. The words ‘TMPY
HOLD’ will remain on the screen for the duration of the
temporary change.
5. To cancel the temporary hold before it expires, press
and hold the Up and Down buttons at the same time.
To adjust the temporary hold time, go to the Temporary
Zone Hold item in the Scene menu.
Wait 10
seconds
Press Up or Down
Button to adjust the
heating temperature.
Press Up or Down
Button to adjust the
cooling temperature.
OR
Current schedule
status indicates a
schedule is in use
Press Up or Down Button
to adjust the heating
“Wake” temperature.
Press Up or Down Button
to adjust the heating
“UnOcc” temperature
Wait 10
seconds
OR

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Setting the Floor Warming Temperatures
If a floor sensor is installed, you can set the minimum floor
temperature.
Caution: Setting a high floor minimum temperature can
result in overheating the room.
To set the floor minimum temperature:
1. Use the Menu button to select the Adjust menu.
2. Use the Item button to select FLOORMIN.
3. Use the Up or Down button to adjust the temperature.
Note: If your thermostat is using the schedule feature,
you will have to set a FLOORMIN temperature for each
period.
There are up to four periods:
•
• Wake
•
• Occ (Occupied)
•
• Unocc (Unoccupied)
•
• Sleep
Setting the Fan On Time
If a fan is connected to the thermostat, the fan on time can
be adjusted:
•
• Auto: The fan operates with the heating or cooling
system.
•
• Off: The fan remains off.
•
• 10% to 90%: The fan operates for the set percentage
of time.
•
• On: The fan operates continuously.
To set the fan on time:
1. Use the Menu button to select the Adjust menu.
2. Use the Item button to select FAN.
3. Use the Up or Down button to set the fan on time.
Note: If your thermostat is using the schedule feature, you
will have to set a fan on time for each period. There are
up to four periods:
•
• Wake
•
• Occ (Occupied)
•
• Unocc (Unoccupied)
•
• Sleep
Choosing the Mode of Operation
Adjusting the Temporary Zone Hold
You can adjust the length of the Temporary Zone Hold.
To adjust the length of the Temporary Zone Hold:
1. Use the Menu button to select the Scene menu.
2. Use the item button to select Tmpy Zone Hold.
3. Use the Up or Down button to set the length of the Tmpy
Zone Hold.
The thermostat has four modes of operation:
•
• Heat: Provides heating only.
•
• Cool: Provides cooling only.
•
• Auto: Automatically changes between heating and
cooling.
•
• Off: Does not provide heating or cooling.
To choose the Mode of Operation:
1. Use the Menu button to select the Adjust menu.
2. Use the Item button to select the Mode item.
3. Use the Up or Down button to select either Off, Heat,
Cool or Auto.

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Resetting the Filter Timer
Viewing the Current Time
Setting the Time
The thermostat keeps a record of the number of hours the
fan runs. Once the number of hours exceeds the Filter time,
a Filter symbol is displayed in the thermostat display.
To reset the Filter timer after you replace the filter:
1. Use the Menu button to select the Adjust menu.
2. Use the Item button to select CLR FLTR.
3. Use the Up button to select YES.
4. The Filter timer has now reset. To Clear
the filter
timer
+
Filter Symbol
To view the current time:
1. Use the Menu button to select the Time menu.
Step 1: Use the Menu button to select the Time menu. The
current time and day displays. If the clock has not been
set, the time will flash.
Step 2: Use the item button to advance through the Time
menu. If your installer has selected Daylight Savings Time,
the date is displayed. If the date has not been set, it will
flash. If your installer has not selected Daylight Savings
Time, the date will not be displayed.
Step 3: Use the Item button to advance to the next item.
The minutes begins to flash. Use the Up or Down button
to set the minutes.
Step 4: Use the Item button to advance to the next item.
The hours begins to flash. Use the Up or Down button to
set the hour.

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Scene Description Thermostat Operation
1 Permanent 1 Scheduled event, Wake, Unoccupied, Occupied, Sleep, Away
2 Permanent Away 2 Away DHW demands are ignored (applies to reset modules)
Setpoint demands operate (applies to reset modules)
3 Permanent Unoccupied 3 Unoccupied
4 Permanent 4 Scheduled event, Wake, Unoccupied, Occupied, Sleep, Away
5 Permanent 5 Scheduled event, Wake, Unoccupied, Occupied, Sleep, Away
6 Temporary Occupied 6 Occupied for 3 hours
7 Temporary 7 Scheduled event, Wake, Unoccupied, Occupied, Sleep, Away for 4 hours
8 Temporary 8 Scheduled event, Wake, Unoccupied, Occupied, Sleep, Away for 8 hours
Selecting a Scene
Scenes is a feature that your installer selects when he sets
up each thermostat in your system.
Please refer to the Job Record J545 for a record of how
your installer made these settings
Scenes allow you to change the temperature of all the
thermostats that use the Scene feature from a single
thermostat.
Several of the Scenes are preset from the factory. However,
your installer can customize several of the scenes based
on your needs.
Refer to the Scene table below for a description of each
scene.
Step 5: Use the Item button to advance to the next item.
The day begins to flash. Use the Up or Down button to set
the day.
If your installer has selected Daylight Savings Time,
continue with steps 6, 7 and 8.
Step 6: Use the Item button to advance to the next item.
The month begins to flash. Use the Up or Down button to
set the month.
Step 7: Use the Item button to advance to the next item.
The day of the month begins to flash. Use the Up or Down
button to set the date.
Step 8: Use the Item button to advance to the next item.
The year begins to flash. Use the Up or Down button to
set the year.

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Location Scene Temperature
Master Bedroom 1 Schedule
4 Schedule
Guest Bedroom 1 UnOccupied
4 Schedule
To select a scene:
1. Use the Menu button to select the Scene menu.
2. Use the Item button to select the Select item.
3. Use the Up or Down button to select the desired
scene.
•
• Default Scene: The default scene is Permanent 1. In a
typical installation, the thermostat follows the schedule.
•
• Factory set scene: When you select a factory set scene
(2, 3, and 6), all of the thermostats using the scene
feature use the temperature specified by the scene.
•
• Custom scenes: When you select a custom scene,
your installer will have preset each thermostat using the
scene feature to either follow its regular schedule, or go
to the set wake, occupied, unoccupied, sleep or away
temperature.
Example:
A house is normally in scene Permanent 1. There is a
master bedroom that operates on a schedule and there is
a guest bedroom that is normally set to Unoccupied. When
a guest arrives, the scene is to change to Permanent 4.
Scene 4 changes the guest room to operate on the setback
schedule.
Extended Absences
If you are going away for an extended period of time, the
AWAYHOLD feature allows you to override the regular
schedule of the thermostat for a set number of days.
During the Away Hold, the thermostat operates at the Away
temperature set by your installer.
After the Away Hold has expired, the thermostat returns to
its normal operation.
If you have multiple tekmar thermostats installed, you need
only to do the following on one thermostat.
To set the number of days you will be away:
1. Use the Menu button to select the Scene menu.
2. Use the Item button to select Away Hold.
3. Use the Up or Down button to set the number of days
that you will be away.
To start the Away Hold:
1. Use the Menu button to select the Scene menu.
2. Use the Item button to select the SELECT item.
3. Use the Up or Down button to select Scene 2
Permanent Away.
Viewing the Recorded High & Low Temperatures
Use the Monitor Menu to view the high and low temperatures
sensed by your thermostat.
To view the temperatures:
1. Use the Menu button to select the Misc menu.
2. Use the Item button to view the temperatures.
3. Pressing the Up and Down buttons at the same time
while viewing the temperature resets the item.
Outdoor High
Highest recorded outdoor temperature.
Outdoor Low
Lowest recorded outdoor temperature.
Room High
Highest recorded indoor temperature.
Room Low
Lowest recorded room temperature

© 2007 U545 - 08/07 10 of 12
Selecting the Schedule Mode
The schedule allows for either 4 or 2 temperatures per day.
To select the schedule mode:
1. Use the Menu button to select the Schedule menu.
2. Use the Item button to select SCH MODE.
Schedule Type
Day 24 Hour 5-2 5-11 7 day
Sa
•
•• •
Su
• •
Mo
• •
•
Tu
•
We
•
Th
•
Fr
•
Selecting the Schedule Type
The schedule type determines how frequently the schedule
repeats itself. This thermostat includes four schedule
types:
1. Use the Menu button to select the Schedule menu.
2. Use the Item button to select SCH TYPE.
3. Use the Up or Down button to select one of the following
four schedule types:
•
• 24 Hour: All days have the same schedule.
•
• 5-2: Monday to Friday follow the same schedule.
Saturday and Sunday follow the same schedule.
*
5-11: Monday to Friday follow the same schedule.
Saturday and Sunday have their own schedules
•
• 7 Day: All seven days of the week have their own
schedule.
3. Use the Up or Down button to select one of the following
two schedule modes:
•
• 4: Wake, Unoccupied, Occupied, Sleep
•
• 2: Occupied, Unoccupied
Selecting a Schedule
Schedule Description
None No schedule is used.
Zone The schedule only applies to this
thermostat.
MST1, MST2,
MST3, MST4
This thermostat is a system schedule
master. There are four possible
system schedules.
MBR1, MBR2,
MBR3, MBR4
This thermostat is a system schedule
member. The number indicates which
of the four system schedules the
thermostat is following.
During installation, your installer will have selected a
schedule for your thermostat.
To view the schedule your installer has selected:
1. Use the Menu button to select the Schedule Menu
2. Use the Item button to select the Heat Schd or the Cool
Schd. You will see one of the following:
•
• None: This thermostat is not using a schedule and
operates at a single temperature.
•
• Zone: This thermostat is using its own schedule.
•
• MST1 to MST4: This thermostat is a schedule master.
The schedule on this thermostat is being used by
this thermostat as well as several other thermostats.
Changing the schedule will affect other thermostats.
•
• MBR1 to MBR4: This thermostat is a member of a
master schedule that has been set on a separate ther-
mostat. If the master schedule is changed, it affects
this thermostat.
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