Product Manual — Doc. 8622E HZ-THSTAT • 144
4-Pipe FCU 1 Stage Heat/Cool, with
optional Radiant Floor Stage, optional
Floor Warming, and optional Aux Heat
Stage
The configuration below can function as a 4 pipe (separate Hot/Cold supply/return pipes) multi-speed
(up to 3 speed) fan coil unit with optional auxiliary heat.
Go to Settings > Installer Settings > System Configuration to open the SYSTEM CONFIGURATION
screen.
Use the System Type, System Performance, Radiant Floor, User Controls, Humidistat Setup, and Sensor
Setup options to configure the thermostat to work with the connected HVAC system.
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