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High-Durability Construction: Built to withstand the harsh environment of a furnace plenum
Complete Sealing: Includes application-specific flange gaskets to prevent steam leaks and maintain pressure vessel integrity
This non-positional relay features a universal break-off bracket
What does this thermal cut-off do
Carrier HH18HA137 Limit Switch 321894-708 High-Durability Construction: Built to withstandThe Carrier HH18HA137 Limit Switch is a critical safety component designed for precise thermal monitoring within furnace heat exchangers. This OEM Carrier replacement part features an automatic reset mechanism with a cutout temperature of 130F and a cut in differential at 90F. Engineered for high cycle reliability, the HH18HA137 limit control ensures the blower motor and burner assembly operate within safe thermal parameters, preventing structural