CARRIER Defrost Thermostat: Mfr Part # HH18HB031
SKU 3G-OTH-75194
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Frequently Asked Questions
What is the Carrier HH18HB031 defrost thermostat used for?
The Carrier HH18HB031 defrost thermostat is used in HVACR systems to sense coil temperature and terminate the defrost cycle when the coil warms sufficiently. It prevents unnecessary heating and ensures efficient system operation in refrigeration and heat pump applications.
What are the specifications of the Carrier HH18HB031 defrost thermostat?
The Carrier HH18HB031 is a defrost thermostat with manufacturer part number HH18HB031. It is designed as a replacement HVACR control for defrost termination. For detailed electrical ratings and temperature setpoints, consult the product datasheet or contact 3G Electric.
Where to buy Carrier HH18HB031 defrost thermostat worldwide?
You can source the Carrier HH18HB031 defrost thermostat through 3G Electric, a global industrial equipment distributor. We handle full logistics, customs clearance, and delivery to worldwide destinations. Contact us for availability and lead time.
How to install the Carrier HH18HB031 defrost thermostat?
To install the Carrier HH18HB031 defrost thermostat, first disconnect power. Mount the thermostat on the evaporator coil line, ensuring good thermal contact. Wire according to the system schematic, typically in series with the defrost heater circuit. Test operation after installation.
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3G Electric supplies CARRIER replacement hvacr controls, switches & thermostats. We supply genuine products with in-stock availability on common SKUs, technical documentation, commissioning support, and warranty service — worldwide.















