RCS Technology TZ45R - Installer Settings: Stages and Modes; Heating and Cooling Stages; Other Installer Settings

DCN: 140-01773-03 Page 6
2nd Stage Heat Enables the 2nd Stage Heating operation
Options: Y or N Default: N
Aux Heat (if Type=HP) Enables Auxiliary Heat (heat strips) operation.
Options: Y or N Default: Y
2nd Stage Cool Enables the 2nd Stage Cooling operation
Options: Y or N Default: N
Other Installer Settings
The Installer Settings Menu includes other HVAC operation settings that can customize the
thermostat for the installation. CAUTION: these settings affect HVAC system operation
and should only be changed by qualified HVAC service technicians.
Installer Settings Menu Items
Display Lock Options: Y or N Default: N
Y = Display LOCKED N = Display UNLOCKED
Allows you to lock or unlock the thermostat buttons. When the buttons are locked, you can
still access the main menu, but you will not be allowed to select any menu options. The
Installer Settings hidden button operation is always operational, allowing you to return to
this screen and turn Display Lock off.
Service Mode
Test Mode Options: Y or N Default: N
Y= Test mode on. Reduces all delays to 10 sec for quicker system testing
N= Test mode off. Normal system delays
CAUTION: in test mode all system safety delays are shorten. Do not operate the
system compressor in test mode. Disconnect Y1 or Y2 outputs if using test mode
on a live system.
System Settings Submenu: Sets the HVAC operational settings below
Mechanical Settings Submenu: Sets HVAC system type and configuration
See HVAC setup instructions above
Schedule Enable When enabled, the local thermostat’s scheduler function is enabled.
Options: Y or N Default: N
Recovery Enable For Heat Pump Systems. Intelligent setback recovery is an automatic
advance start of heating to allow the system to be at setpoint by the schedule time without
the use of Aux Heating. Options: Y or N Default: N
H/C Delta Sets the minimum separation between heating and cooling setpoints.
Options: 3 - 15 degrees Default: 3 deg F (1 deg C)
Attempts to lower the cooling setpoint below the heating setpoint will PUSH the heating
setpoint down to maintain this separation. Same for setting the heating setpoint above the
cooling setpoint, it will PUSH the cooling setpoint up to maintain this separation.
Fan Purge Range: Fan will continue to run after a call for heating or cooling to purge the
conditioned air from the ducts.
Options: 0-120 Default: 0 (=off)
Heating Delta Stage 1 ON Sets the delta from setpoint that stage 1 heating starts.