Carrier HH18HA283 Discharge Gas Thermostat L270-80F

Description

Carrier HH18HA283 Discharge Gas Thermostat Overview

The Carrier HH18HA283 is an OEM discharge gas thermostat (high-limit thermostat) engineered to protect compressors in Carrier HVAC and refrigeration systems. By continuously monitoring discharge gas temperatures, this thermostat acts as a critical safety device — cutting out at L270°F and automatically resetting after the system cools by 80°F. Proper discharge gas temperature control helps prevent compressor overheating, extends equipment life, and maintains system efficiency.

Key Features

• OEM Carrier replacement part — direct-fit for compatible Carrier equipment
• High-limit cutout temperature: L270°F (opens on temperature rise)
• Reset differential: 80°F (auto-reset after cooldown)
• Monitors discharge gas line temperatures to safeguard the compressor
• Helps prevent compressor damage caused by excessive discharge temperatures
• Reliable thermostat construction for long service life in demanding HVAC applications

Specifications

• SKU / Part Number: HH18HA283
• Brand: Carrier
• Type: Discharge Gas Thermostat (High-Limit)
• Cutout Temperature: L270°F (opens on rise)
• Reset Differential: 80°F
• Application: Compressor discharge line protection

Application

The HH18HA283 is designed for installation on the discharge line of Carrier compressor systems. When discharge gas temperatures exceed the L270°F threshold, the thermostat opens the control circuit, shutting down the compressor to prevent damage. Once temperatures drop by 80°F, the thermostat resets and allows normal operation to resume. Always consult Carrier equipment documentation to confirm compatibility before installation.