DCN 140-02165-01 4/20/12 9
HVAC SYSTEM SETUP
The TR65 must be configured for the correct HVAC system type. This is done by
setting the dipswitch, SW1, on the HVAC Control Unit.
You must know what type of HVAC system you have to correctly setup the thermostat. Determine the
following before you install the TR65. Check your HVAC system manual to verify.
HVAC System Type: Standard Gas, Electric or Heat Pump system.
HVAC System Fan Type: Gas or Electric
Heat Pump System Changeover valve Type: Changeover with cooling or changeover with
heating.
For retrofit installations, the original thermostat settings and wiring may be clues to the proper settings. If
you are not sure, consult the HVAC system manual or contact a qualified service technician.
Setup Dipswitch SW1
Switch S1: System Type
Off: Standard gas/electric HVAC system (default)
On: Heat Pump System
Switch S2: S2 function is dependent on the setting of S1
If S1= Standard system
Then S2 = Fan Type
Off: Gas heating system (default)
On: Electric heating system
If S1= Heat Pump system
Then S2 = Changeover valve type (CO)
Off: CO/C Change over with cooling (default)
On: CO/H Change over with heating
You can view and confirm the system setup in the Wall Display Unit’s Main Menu “Thermostat Info”
screen.
Additional setup options and operational preferences are available in the “User Settings” and “Installer
Settings” menus accessed from the Wall Display Unit.
Refer to the “Installer Settings” document from details of these optional settings.
S1 S2 OFF S2 ON
STD GAS ELECT
HP CO/C CO/H
Setting SW1 correctly is
required for proper system
operation.
Any change to the SW1 settings requires the
HVAC Control Unit to be power cycled (Off/On).
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