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through-bolt
these valves are designed with a permissible leakage rate of approximately 4 gallons per hour at rated differential
Operating at 460V with a 1115 RPM rating
it is classified as Non-Cancelable / Non-Returnable
The manual handle allows technicians to position the valve during commissioning or power failure
Carrier HH12ZA218 Limit Switch 320788-703 through-boltThe Carrier HH12ZA218 Limit Switch is a critical safety component designed for high efficiency residential heating systems, specifically engineered for furnace limit switch replacement in Carrier, Bryant, and Payne units. This OEM replacement part functions as a normally closed switch that breaks the electrical circuit when the internal plenum temperature exceeds the 180 220F safety threshold. As an auto reset limit switch, it automatically re engages