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Designed for a flanged airstream mount
protecting the burner assembly and improving energy efficiency
For technicians updating older systems
Which boiler models use this pilot tubing
Carrier HH18HA280 Defrost Stat Designed for a flanged airstreamThe Carrier HH18HA280 is a specialized L80 50F defrost thermostat designed to regulate the defrost cycle in residential and light commercial heat pump systems. This OEM Carrier part features a fixed set point, closing on temperature drop at 50F and opening at 80F to ensure efficient coil clearing while preventing excessive heat buildup. As a critical defrost sensor replacement, it prevents ice accumulation on the outdoor coil, maintaining optimal
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