Contractor Ready: Simplified 2C sensor style eliminates the complexity of retrofitting older O

the Watts 780333 is approved for non-potable water applications such as cooling towers

necessitating a new part to avoid damage to other heater control boards

It is designed to inject hot gas between the thermostatic expansion valve (TXV) and the evaporator

Key Benefits Universal Compatibility: Works with 24VAC

Carrier HH19ZA175 Limit Switch 318172-701 Contractor Ready: Simplified 2C sensorThe Carrier HH19ZA175 Limit Switch is a critical safety component designed for precise thermal monitoring in residential and commercial HVAC equipment. Optimized for 125 VAC VDC systems, this normally closed (NC) limit actuator operates with a specific 175F open temperature and a 135F close temperature. Built as a Pro Dim high temperature switch, it effectively prevents heat exchanger damage by breaking the 24V control circuit if internal temperatures