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506052−01 11/09
Page 2
Table of Contents
icomfortt Thermostat Terms and Acronyms 3. . . . . . . . . . . . . . . . .
icomfortt Technical Description 4. . . . . . . . . . . . . . . . . . . . . . . . . . .
icomfortt Thermostat Features 5. . . . . . . . . . . . . . . . . . . . . . . . . . .
Installing icomfortt Thermostat 5. . . . . . . . . . . . . . . . . . . . . . . . . . .
Installer setup 6. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
System settings 7. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Setting time and date 8. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Add/remove/modify non−communicating devices 9. . . . . . . . .
Modify communicating device settings 10. . . . . . . . . . . . . . . . . .
Indoor air quality controls 12. . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Tests 14. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Diagnostics 17. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Alerts 18. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Access installer program from User Home screen 22. . . . . . . . . . . .
Reconfiguring a system 23. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Editable parameters table (user and Installer) 25. . . . . . . . . . . . . . . .
Alarm Codes and Descriptions 31. . . . . . . . . . . . . . . . . . . . . . . . . . . .
Wiring Diagrams 36. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
WARNING
Always turn off power at the main power source by switching the
circuit breaker to the OFF position before installing or removing
this thermostat.
All wiring must conform to local and national building and electri-
cal codes and ordinances.
Do not switch system to cool if the outdoor temperature is below
45°F (7°C). This can damage the cooling system.
CAUTION
This is a 24VAC low−voltage thermostat. Do not install on volt-
ages higher than 30VAC.
Do not short (jumper) across terminals on the gas valve or at the
system control to test installation. This will damage the thermo-
stat and void the warranty.
IMPORTANT
Read this manual before programming this thermostat.
Use this thermostat only as described in this manual.