Installation Guide
Installer setup
Setup functions
Settings & Options (factory default in bold)
Shaded areas below apply only to TH8320/TH8321.
0
0
0
0
240
250
260
280
First stage heat
cycle rate (CPH=
cycles per hour)
5
1
Gas or oil furnaces of less than 90% efficiency
Steam or gravity systems
3ꢀ Hotꢀwaterꢀsystemsꢀ&ꢀfurnacesꢀofꢀ90%+ꢀefficiency
9
ꢀ
ꢀ
Electricꢀfurnaces
[Otherꢀoptions:ꢀ2,ꢀ4,ꢀ6,ꢀ7,ꢀ8,ꢀ10,ꢀ11,ꢀ12ꢀCPH]
Second stage heat
cycle rate (CPH)
5
1
3
9
Gas or oil furnaces of less than 90% efficiency
Steam or gravity systems
Hotꢀwaterꢀsystemsꢀ&ꢀfurnacesꢀofꢀ90%+ꢀefficiency
Electricꢀfurnaces
[
Otherꢀoptions:ꢀ2,ꢀ4,ꢀ6,ꢀ7,ꢀ8,ꢀ10,ꢀ11,ꢀ12ꢀCPH]
Third stage heat
cycle rate (CPH)
9
1
3
5
Electric auxiliary heat or electric furnaces
Steam or gravity systems
Hotꢀwaterꢀsystemsꢀ&ꢀfurnacesꢀofꢀ90%+ꢀefficiency
Gasꢀorꢀoilꢀfurnacesꢀofꢀlessꢀthanꢀ90%ꢀefficiency
[
Otherꢀoptions:ꢀ2,ꢀ4,ꢀ6,ꢀ7,ꢀ8,ꢀ10,ꢀ11,ꢀ12ꢀCPH]
Backlight
0
1
Backlight on for approx. 8 seconds after keypress
Backlightꢀalwaysꢀonꢀlowꢀintensity,ꢀfullꢀbrightꢀafterꢀkey-
pressꢀ(requiresꢀ24VACꢀconnection)
0
0
0
0
300
310
320
330
Manual/Auto
changeover
0
1
Manual changeover (Heat/Cool/Off)
Automaticꢀchangeoverꢀ(Heat/Cool/Auto/Off)
Auto changeover
deadband
3
Heat/cool temperature 3°F apart (1.5°C) ** See page 11
[Otherꢀoptions:ꢀ2-9ꢀ(2°Fꢀtoꢀ9°F/1.5ꢀ°Cꢀtoꢀ5°C)]
Temperature
display
0
1
Fahrenheit
Celsius
Daylight savings
2
Auto-change to daylight savings timeꢀ(2007ꢀandꢀbe-
yond,ꢀforꢀareasꢀthatꢀuseꢀtheꢀnewꢀ2007ꢀDSTꢀcalendar)
Auto-changeꢀtoꢀdaylightꢀsavingsꢀtimeꢀ(throughꢀ2006,ꢀandꢀ
for areas that do notꢀuseꢀtheꢀnewꢀ2007ꢀDSTꢀcalendar)
Daylight savings time is turned off
1
ꢀ
0
0
340
Remote sensor
0
1
2
3
No remote sensor
Outdoor sensor (display only)
Outdoor control sensor (select heat pumps) ** See page 11
Indoor sensor
0
0
0
350
360
380
Heat pump
compressor lockout
0
No heat pump compressor lockout
[Otherꢀoptions:ꢀ15,ꢀ20,ꢀ25,ꢀ30,ꢀ35,ꢀ40°Fꢀ(-9.5°Cꢀtoꢀ7°C)]
Heat pump
auxiliary lockout
0
No heat pump auxiliary lockout
[Otherꢀoptions:ꢀ40,ꢀ45,ꢀ50,ꢀ55,ꢀ60°Fꢀ(4.5°Cꢀtoꢀ15.5°C)]
Dehumidification
0
No dehumidification control
control
1
Thermostatꢀcontrolsꢀdehumidificationꢀwithꢀairꢀconditionerꢀ
*
* See page 11
Continued on next page
6
9-2693—01
8