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allowing the unit to resume operation once the internal heat exchanger temperature drops back to 110°F
It is essential to verify your target setpoint falls within this band before installation
and physical debris within the refrigerant circuit
This spdt limit switch is engineered to meet the exact airflow and thermal response requirements of your gas-fired unit heater
What symptom indicates a failed damper door spring
York S1-025-27733-002 Rollout Switch allowing the unit to resumeThe York S1 025 27733 002 Rollout Switch is a critical safety component designed for precise thermal monitoring in residential and commercial furnaces. This Double Pole Single Throw (DPST) switch provides redundant circuit protection, essential for identifying combustion issues or venting failures. Engineered with a 175F open temperature and a 95F close temperature, it ensures the system shuts down immediately if flame rollout is detected, preventing