RCS TZ43 User Manual

DCN 141-01128-04 10/6/08 22
Main Menu > Installer Settings (Hidden Screen)
The Installer Settings screen is a hidden screen designed for installer use only. Do not change any
settings in this screen unless you are a qualified service technician. Changing these settings will affect the
operation of the heating/cooling system.
To enter this screen, go to the main menu selection screen and press and hold the two inner
buttons for 3 seconds until the Installer Settings screen appears.
The Installer Settings screen displays the current internal settings of the thermostat. You can view and
change the settings from this screen. Scroll to the desired function and use the +/- buttons to change.
Display Lock: Range: 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 Submenu
Service Mode: Range: Y or N Default: N
Y = Service Mode On
N= Service Mode Off
Sets the thermostat timers in a test mode with short delays. All runtime and staging delays are reduced to
15 seconds to speed up system checkout and testing.
Caution: compressor short cycle protection is lost in this mode.
System Settings Submenu
Mechanical Settings Submenu
Type Range: Gas/Elec or Heatpump Default: Gas/Elec
Selects HVAC type, Gas/Electric or Heatpump
Fan Type Range: Gas or Elec Default: Gas
Selects the Fan type if system is Gas or Electric
C/O Type Range: w/Cool or w/Heat Default: w/Cool
Set the Heatpump Changeover type
2
nd
Stage Heat Range: Y or N Default: N
Enables the 2
nd
Stage Heat operation
Aux Heat (HP) Range: Y or N Default: N
Enables the Auxiliary Heat operation. Typically the Aux Heat will be heat-strips in a
Heatpump system
2
nd
Stage Cool Range: Y or N Default: N
Enables the 2
nd
Stage Cool operation
Schedule Override Range: Y or N Default: N
When enabled, the scheduler function is disabled and the Run/Hold button does not appear on
the main screen.

RCS TZ43 Specifications

General

Brand	RCS
Model	TZ43
Category	Thermostat
Language	English