Tekmar tekmarNet 2 528 User Brochure

- User Brochure

ADJUST

tekmarNet®2 Thermostat 528

Congratulations on the purchase of your tekmar Thermostat 528, an important part of your home comfort system. A
tekmarNet® system combines information from each tekmarNet® device in your home, using it to optimize both system
efficiency and occupant comfort. This brochure will provide you with the information you need to benefit the most from
your tekmarNet® thermostat.

U 528

03/09

1. Display

MAIN
DISPLAY

ADJUST

SECONDARY
DISPLAY

SET ROOMOUTDOOR

SET

ROOM WWSD

HEAT

F
C

F

C

Away

OFF

HEAT

Heat

Heat is turned on.

Sun

Operating at the occupied (day) temperature.

Moon

Operating at the unoccupied (night) temperature.

2. Change the Current Temperature

This thermostat can operate in
three different ways based on
how it was installed:

Press the or the button to adjust
the room or floor temperature.

1. Room Heating - Built-in air sensor controls room

temperature. Floor sensor is not used.

2. Floor Warming - Floor sensor controls floor temperature.

Built-in air sensor is not used. Thermostat will show Floor
on the display when operating in Floor Warming.

3. Room Heating and Floor Warming: Built-in air sensor

controls room temperature. Floor sensor limits floor
minimum and maximum temperature and can override
the room temperature.

Flashing indicates that the temperature cannot be

•
changed. This is due to a scene having been set. See
“Scenes” on page 2 for details. Use a User Switch to
return to or .

Flashing

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the heating system has been shut off for the summer.

(warm weather shut down) indicates that

WWSD

F

Clock

Operating on a programmable schedule.

Away

Operating at the Away scene temperature.

Warm Weather Shut Down

The heating system has been shut off for the
summer.

tN2 Communication

Communication is present.

Warning Signal

Indicates an error is present. Refer to thermostat
I/O Manual (D527) for troubleshooting guide.

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Cooling Group Member

Heating is turned off to allow cooling.

3.

Change between Heat or Off

The Mode button selects between
Heat or Off.

Off Mode turns off room heating

•

and floor warming and only allows
heating for freeze protection.

AUTO

4. Temperatures (

and )

The Thermostat 528 has two adjustable temperatures:
Occupied ( ) and Unoccupied ( ). They are adjusted as
follows:

To change the temperature, press the button until

•
is displayed. Then press the or button.

To change the temperature, press the button until

•
is displayed. Then press the or button.

Temperature Indicators

Display Action

Manual override at occupied temperature.
Manual override at unoccupied temperature.

Programmable schedule at occupied
temperature.
Programmable schedule at unoccupied
temperature.

Below are several easy ways to change between and :

A. Schedule (Requires Timer 033)

Schedules are an energy-saving feature. A Timer 033 will
automatically change thermostats between the

Program the Timer 033 with the current time and desired

•

and .

operating schedule.
Press the thermostat’s Local Override ( ) button to

•
select the to operate on a programmable schedule.

The 528 automatically changes between the and

•
temperature based upon the schedule device’s program.

If a symbol does not appear while pressing ( ), there

•
is no schedule device connected to the system.

B. Local Overrides

A Local Override is a change between the and
temperatures directly at the thermostat. The Local Override
( ) button can be used to override any schedule.

Press the button to toggle between , , and

•
(if available).

The thermostat remains at the selected or override

•
temperature until manually changed back to the schedule
( ) by using the Local Override button.

C. Scenes (Requires a User Switch 479)

5. °F or °C

Press and hold down the and buttons together.

•
Release the buttons once °F or °C is displayed.

•
Press the button for °C, press the button for °F.

•
Wait for display to return to normal operation.

•

6. Outdoor Temperature

When an outdoor sensor is connected on the system or
to this thermostat, the outdoor temperature is displayed in
the top right corner of the display.

7. Cooling Group

This thermostat can be part of a cooling group. A cool

•
group is operated by a cooling master thermostat.

If the thermostat temperature is adjusted while the cool

•
master is cooling, a flashing icon appears in the display
to show that the thermostat is part of a cooling group,
and will not operate heating until cooling is no longer
required.

When the cool master is operating the cooling system,

•
heating on this thermostat will be prevented until 30
minutes after cooling is finished.

•

If a floor sensor is connected, a floor minimum temperature
can still be maintained.

A Scene is a system-wide manual override activated by
a User Switch 479. A User Switch provides convenient
one-touch temperature adjustment of all thermostats on
the system. It will override any programmable schedule
or Local Override.

When the User Switch button is pressed, all thermostats

•
may change to either the , , or Away temperature.

•

Away is used for long absences from the building such

as a vacation.

•

While in the Away scene, the room temperature cannot
be changed using the or buttons. Use the User
Switch to change the Scene from Away to or to
change the temperature.

To return to a programmable schedule from a Scene, select
the (Top Button) on the User Switch 479.

Head Offi ce: 5100 Silver Star Road, Vernon, B.C. Canada V1B 3K4, 250-545-7749, Fax. [phone] Web Site: www.tekmarcontrols.com

Product design, software and literature are Copyright © 2009 by:
tekmar Control Systems Ltd. and tekmar Control Systems, Inc.

tekmar Control Systems Ltd., Canada, tekmar Control Systems, Inc., U.S.A.

8. Backlight

Press and hold down the and buttons together.

•
Release the buttons once “lite” is on display.

•
Press the or button to select Off, 30 second, or On.

•

9. Error Messages

Contact your installer or read the Installation and Operation

•
Manual D 527 for more information.

Download the D 527 Installation and Operation Manual

•
from www.tekmarcontrols.com/literature/d.html.

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All specifications are subject to change without notice.

Printed in Canada. U 528 - 03/09.