Is the 33H78 switch a manual or automatic reset

For contractors managing commercial HVAC systems

plastic-housed solution that maintains operational integrity across a broad temperature range of -40°F to 158°F

you maintain the factory-standard performance and energy efficiency of your indoor climate control system while preventing costly secondary damage to the drive shaft

verifying the 24VAC signal at the coil is essential

Heil Quaker ICP 1171901 Limit Switch 320819-301 Is the 33H78 switch aThe Heil Quaker ICP 1171901 Limit Switch is a critical safety component engineered for precision temperature monitoring within the furnace plenum. As an OEM L150 55 AUTO Limit Switch, this part is calibrated to open the electrical circuit when internal temperatures hit 150? F, effectively shutting down the burners while keeping the blower motor engaged to cool the heat exchanger. This furnace high limit control is built for high duty cycles and