HZ221 Zone Control Panel, AT140 Transformer, C7735A Discharge Air Temperature Sensor
Prop65:
No
Universal Application; controls 3 zones
Robust push terminals
Common-sense LEDs
Clean, professional installation
Smaller footprint
Variable-speed fan control
Can be used with W8665E wireless receiver
Additional features for HZ432 and HZ322
Discharge air temperature staging
Intutive installer setup. Easy-to-follow, digital display uses real language to guide installer through four easy steps.
Standardized checkout procedure...insures all installers check the same way and all zones function correctly before the installer leaves In addition the HZ432 offers dual fuel changeover based on outdoor temperature and/or thermostat staging, controls one extra zone and is expandable to 32 zones using TAZ4 Kits (K suffix) include transformer and C7735A discharge air temperature sensor