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The rugged die-cast aluminum housing protects the internal diaphragm and electrical contacts
Dual-Function Logic: Combines boiler low water cutoff and liquid level control to streamline installation and reduce component count
reducing the total number of electrodes needed in the burner box
This unit typically specifies a 7
this thermostatic expansion valve facilitates accurate pressure regulation
Resideo HZ322 Panel 323080-701 The rugged die-cast aluminum housingThe Resideo HZ322 TrueZONE Panel is the industry standard solution for managing forced air zoning in residential and light commercial applications. This versatile 3 zone control board supports up to 2 stages of heat and 2 stages of cool for conventional systems, or 2 stages of heat and 1 stage of cool for heat pump configurations. Historically identified as the direct replacement for the Honeywell 6303, the HZ322 features a smaller footprint and an