7 of 24
© 2010
D 540 - 08/10
Switch Settings
Switches are set to “On”
position from the factory, and
do not require changing for
most applications.
1
2
3
4
1 2 3 4
tNt 540
54
0
One Stage Heat /
One Stage Cool / One Fan
Made in
Canada
Mmm YYYY
Lo
t # 1
23
45
Mee
ts Class B:
Canadian ICES FCC P
ar
t 1
5
Power:
24 V ±10% 50/60 Hz 1.8 VA
56 VA fully loaded
Relays:
24 V (ac) 2 A
10
01-0
1
tN4
1
C
2
R
3
W
4
7
G
6
Y
5
Rc
Switch Se
ttings:
For instructions see brochure
Use at least 75°C conductors
Se
tback
Scene
None
Lock
ON
Unlock
Cool Mas
te
r 1
Off
Off
1
2
3
4
1 2 3 4
Mm
Mee
ts
Class
B:
Switch Se
ttings:
Se
tback
Scene
None
Unlock
ON
Lock
Cool Mas
ter 1
Off
Off
Switch Position Action
1
ON
SETBACK
The thermostat follows a programmable setback schedule
as a schedule member if available. Requires the installation
of a Timer 033 to use this feature.
OFF
OFF
The thermostat does not follow a programmable setback
schedule.
2
ON
SCENE
The thermostat responds to changes in the scene (system
wide manual overrides). Requires the installation of a User
Switch 479 to use this feature.
OFF
OFF
The thermostat does not respond to scenes.
3
ON
NONE
The thermostat is not part of a cooling group.
OFF
COOL MASTER 1
The thermostat is a master of cooling group number 1.
4
ON
LOCK ACCESS LEVEL
Locked to ‘User’ access level. Set to Lock when installation
completed.
OFF
UNLOCK ACCESS LEVEL
Unlock to allow ‘User’ and “Installer’ access level. Set to
Unlock during installation process.
tekmarNet
®
reset control must also be set to Unlocked
(Installer access level).
