For most Copeland semi-hermetic models

System Protection: Critical safety limit switch functionality prevents burner operation if venting or intake air is obstructed

The Lennox 29M74 Limit Switch is a critical fixed-temperature safety component engineered for Lennox furnace flame rollout and primary limit protection

while outdoor setups require a 13A15-5 vent protector to prevent debris and moisture ingress

Titus HVAC 10151205 Motor 320788-704 For most Copeland semi-hermetic modelsThe Titus HVAC 10151205 Motor is a heavy duty 115V 1 3HP 1075RPM replacement fan motor engineered for high static terminal unit applications and fan powered boxes. This direct drive blower motor features a standard 48 frame design, ensuring seamless physical integration into Titus terminal air units without field modifications. Operating at a nominal 1075 RPM, it delivers the consistent torque required to maintain design airflow across primary and