Tekmar tNt 540 User manual

1 of 2 © 2011 Q 540 - 12/11
tekmarNet®4 Thermostat 540
Q 540
12/11
Zoning Replaces: 08/10
Quick Setup Guide
Location1. Remove Mounting Base2.
Install Mounting Base3. Wiring4.
Switch Settings5.
12 34
tN4 Wiring Center
or
tN4 Zone Manager
Cooling Equipment
1 Stage
Cooling
1 Stage
Fan
G Y R
D
X
Fan
Cooling
tN4 C W
R
1234
tNt 540
540
One Stage Heat /
One Stage Cool / One Fan
Mmm YYYY Lot # 12345
Meets Class B: Canadian ICES FCC Part 15
Power: 24 V ±10% 50/60 Hz 1.8 VA
56 VA fully loaded
Relays: 24 V (ac) 2 A
1001-01
tN4
1
C
2
R
3
W
4
7
G
6
Y
5
Rc
Switch Settings:
For instructions see brochure
Use at least 75°C conductors
Setback
Scene Lock Not used
ON
Not used
Unlock
Off
Off
Switch Position Action
1ON SETBACK Allow thermostat to respond to
available schedule. Requires Timer 033.
OFF OFF No setback schedule response.
2ON SCENE Allow thermostat to respond to
scenes. Requires User Switch 479.
OFF OFF No scene response.
3
ON LOCK Locked to ‘User’ access level. Set
to Lock when installation completed.
OFF UNLOCK Unlock to access all settings.
Set to Unlock during installation.
4ON Not used
OFF Not used
Close Thermostat6.
pivot
tab
Thermostat
Base
Adaptor
Plate 007
Switch
Box
OR
Thermostat
Base
Wall
Exterior
Wall
Interior
Wall
5 feet
1.5 m
Switch
Setting
Location

Product design, software and literature are Copyright © 2011 by:
tekmar Control Systems Ltd. and tekmar Control Systems, Inc. 2 of 2 All specifications are subject to change without notice. Printed in Canada. Q 540 - 12/11.
tekmar Control Systems Ltd., Canada, tekmar Control Systems, Inc., U.S.A. Head Office: 5100 Silver Star Road,
Vernon, B.C. Canada V1B 3K4, 250-545-7749, Fax. [phone] Web Site: www.tekmarcontrols.com
Mode button
Auto, Heat, Cool, Off
Fan button
Switch between Auto or On
User Interface7.
For a full list of settings and operational details, please refer to the thermostat Installation and Operation Manual
(D540) included with compatible tekmarNet®controls or download the brochure from www.tekmarcontrols.com
• Press and hold down both the and buttons for 2 seconds to change from one step to the next.
• Release both buttons once the step has been reached.
• Press the or the button to change the setting, if available.
• Press and hold down both the and buttons for 2 seconds to go to the next step, OR
• After 10 seconds of no button activity, the display goes back to normal operation.
Press
+
Together
The following settings are essential to the successful operation of the system.
Important Note: Set switch setting #3 and tekmarNet®system control to Unlock to change Access level to Installer. Return to Lock
setting once installation has been completed.
Display Range Access Description Set to
°F or °C
Default = °F
Installer
User
TEMPERATURE UNITS
Press the or the button to change from °F to
°C and vice versa.
0, 1, 2, 3
Default = 1 Installer
FAN MODE
Select how the fan should operate together with heating
and cooling.
0 = Manual operation only
1 = Operate fan with cooling only
2 = Operate fan with heating and cooling
3 = Operate fan with heating only
Hyd
(Hydronic)
or Oth
(Other)
Default =
Hydronic
Installer
HEATING TERMINAL TYPE
Select if the heating for this zone is hydronic or non-
hydronic (other).
Available when:
A reset control is present on the tekmarNet®
system.
•
H1
H1
ADJUST
ADJUST
SUPPLY
OFF or On
Default = On Installer
HEAT SUPPLY PUMP
During heating, select whether or not the system supply
pump should turn on or be off to allow a zone group
pump per manifold.
Available when:
A reset control is present on the tekmarNet®system
AND Heating terminal type is set to Hydronic.
•
Critical Settings8.