34
6) Move the
SYSTEM
switch to
HEAT
or
COOL
and press
RUN
to begin
program operation.
REVERT TO FACTORY DEFAULT PROGRAM SETTINGS
Press the
RESET
button. All user’s changed settings will revert to factory
default settings (Including configuration settings).
Troubleshooting--------------------------------------------------------------------------------
If a voltage spike or static discharge blanks out the display or causes erratic
thermostat operation, you can reset the thermostat by pressing the reset
button (See Figure 1). If the thermostat has power, and has been reset and still
does not function correctly, contact your heating/cooling service contractor
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...
