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CARRIER Defrost Thermostat: Mfr Part # HH18HA280 - Replacement HVACR Controls, Switches & Thermostats
CARRIERReplacement HVACR Controls, Switches & Thermostats

CARRIER Defrost Thermostat: Mfr Part # HH18HA280

SKU 3G-OTH-91213

Brand
CARRIER
Item
Defrost Thermostat: Mfr Part # HH18HA280
Category
Replacement HVACR Controls, Switches & Thermostats
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Technical Specifications

CARRIER
Manufacturer Part Number
HH18HA280
Product Type
Defrost Thermostat
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CARRIER Products
3G Electric (S) Pte. Ltd. — Singapore

Frequently Asked Questions

What is the Carrier HH18HA280 defrost thermostat used for?

The Carrier HH18HA280 defrost thermostat is used in HVACR systems to sense coil temperature and terminate the defrost cycle when the coil warms sufficiently. It prevents unnecessary defrosting and ensures efficient system operation in refrigeration and heat pump applications.

What are the specifications of the Carrier HH18HA280 defrost thermostat?

The Carrier HH18HA280 is a defrost thermostat with manufacturer part number HH18HA280. It is designed as a replacement HVACR control for defrost termination. Key specs include its product type as a defrost thermostat, suitable for use in Carrier and compatible systems.

Where to buy the Carrier HH18HA280 defrost thermostat worldwide?

You can source the Carrier HH18HA280 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 on this replacement part.

How to install the Carrier HH18HA280 defrost thermostat?

To install the Carrier HH18HA280 defrost thermostat, first disconnect power. Mount the thermostat on the evaporator coil line, ensuring good thermal contact. Wire it according to the system schematic, typically in series with the defrost timer. Always follow OEM guidelines for safe installation.

Used in

Common applications for CARRIER
Commercial rooftop HVAC maintenance — Carrier heat exchanger kit 48GS660004 for replacing failed heat exchangers in packaged units.
Refrigeration system servicing — Carrier synthetic oil P903-2301 for lubricating compressors in HFC-based commercial refrigeration.
HVAC control system repair — Carrier blower control board HH84AA017 for restoring fan operation in air handlers.
Gas furnace safety inspection — Carrier rollout switch HH18HA449 for replacing faulty safety switches in heating systems.
Condenser unit overhaul — Carrier condenser fan blade 30GX660017 for replacing damaged blades in outdoor condensing units.
Compressor protection — Carrier crankcase heater HT31AZ121 for preventing liquid slugging in compressors during off-cycles.

CARRIER Products

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.

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