This specific cover includes a single set point window

though its ODP enclosure should be protected from direct water ingress as per equipment specifications

Service technicians can reset the system easily through the thermostat or by cycling the main power

Durable Construction: Features a high-quality 3-1/3 inch diameter motor with a 5-3/4 inch x 1 inch blower wheel designed to withstand high-temperature exhaust environments

this flue pipe seal facilitates optimal heat transfer while protecting internal components from corrosive flue condensates

Lennox 57W37 Limit Switch 322838-752 This specific cover includes aThe Lennox 57W37 Limit Switch is a critical safety component designed for precise thermal regulation in residential and commercial furnaces. This genuine OEM Lennox replacement part features an auto reset mechanism, ensuring the system returns to standard operation once temperatures stabilize. Engineered as a normally closed circuit, the switch is calibrated to open on temperature rise at 170F and close on temperature drop at 140F, effectively