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Ships within 48 hours · Estimated delivery Sep 24 - Sep 29
Durable Construction: Built to withstand high-cycling environments common in residential HVAC heating cycles
Since these brands are under the Carrier umbrella
Technicians frequently find that sediment or "mud" buildup in the chamber can restrict float movement
Standard Threading: Dual 3/4" female NPT connections allow for straightforward field installation and replacement
you must select the corresponding CCW model number
Carrier HH57ZC003 Enthalpy Switch 318518-761 Durable Construction: Built to withstandThe Carrier HH57ZC003 Enthalpy Switch is a critical component for optimizing economizer control systems and enhancing energy management in commercial HVACR applications. This genuine OEM replacement part measures both ambient temperature and relative humidity to calculate air enthalpy, providing precise relay output for damper modulation. By evaluating real time atmospheric conditions rather than simple dry bulb temperature, the HH57ZC003 determines
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