DCN 141-01128-04 10/6/08
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HVAC System Connection
The thermostat connects to the HVAC system’s thermostat connections just like a traditional thermostat
does.
HVAC System Compatibility
The thermostat is compatible with most heating and cooling systems. There are two types of HVAC
systems: Standard (gas/electric) and Heat Pump systems. The system type is selectable from the
Installer Screen – System Settings – Mechanical Settings submenu.
For Standard HVAC systems: Gas heating or Electric heating.
For Heat Pump HVAC systems: supports changeover valve operation for either changeover with cooling
or changeover with heating.
Multi-Stage HVAC Compatibility
For Standard HVAC systems, the HVAC outputs support 2 stages of heating and 2 stages of cooling.
For Heat Pump HVAC systems, the HVAC outputs support 3 stages of heating (2 compressor/1 heatstrip)
and 2 stages of cooling.
Remote Communications
The TZ43 thermostats have a Zwave communications module for communicating to control systems with
Zwave capability.
Outside Temperature Operation
The thermostat can use and display outside temperature information from a sensor attached to the RS2
Remote Sensor connection The outside temperature will be displayed on the Thermostat.
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