8
WARNING!:
Electrical Shock Hazard
Turn off power at the main service panel by removing the fuse or switching the
appropriate circuit breaker to the OFF position before removing the existing thermostat.
1.
Turn off power to the heating and cooling system by removing the fuse or
switching the appropriate circuit breaker off.
2.
Place the system switch
(COOL/OFF/HEAT)
in the
OFF
position.
3.
Place the
FAN (AUTO/ON)
switch in the
AUTO
position.
4.
Gently pull the cover straight off the base. (See figure 1.)
5.
Put the thermostat base against the wall where you plan to mount it. (Be sure
the wires will feed through the wire opening in the base of the thermostat.)
6.
Mark the placement of the mounting holes.
7.
Move the base out of the way. Drill mounting holes. Use a hammer to tap in
the supplied anchors into the mounting holes.
Summary of Contents for T21STK-2
Page 1: ...1 OPERATING T21STK 2 INSTRUCTION...
Page 7: ...7 INSTALL THE THERMOSTAT ATTACH THERMOSTAT BASE TO WALL PULL THE COVER OFF THE BASE...
Page 12: ...12 Wiring Diagrams Figure 3 Typical wiring diagram for heat cool 5 wire two transformer system...
Page 13: ...13 Figure 4 Typical wiring diagram for heat cool 4 wire single transformer system...
Page 20: ...20...
Page 35: ...35 THERMOSTAT LCD DISPLAY Figure 2...
Page 36: ...36 THERMOSTAT BUTTONS AND SWITCHES Figure 3...
Page 38: ...38...
Page 39: ...39...
Page 40: ...40...
Page 41: ...41...
