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maintaining the original equipment manufacturer (OEM) specifications for response time and thermal sensitivity
What are the signs of a failing limit switch
using 18 AWG wire is recommended for runs exceeding 150 feet to keep error below 1°F
By providing the exact clearance required for large-scale MP953 series actuators
Carrier HH18HA187 Limit Switch maintaining the original equipment manufacturerThe Carrier HH18HA187 Limit Switch is a critical OEM replacement part designed for high limit safety monitoring in residential and commercial gas furnaces. This SPST normally closed disc style switch features a fixed 180 degree open setpoint and a 80 degree close reset point, ensuring the heat exchanger does not exceed safe operating temperatures. Engineered for automatic reset functionality, the HH18HA187 integrates seamlessly into the safety string