standard HVAC mounting hardware kits (such as the 14004237-002) are often ordered separately for full assembly

Once the oil pressure issue is diagnosed and rectified

Key Benefits for the Contractor: Precision Thermal Sensing: Provides accurate discharge air temperature data to the main controller for optimal climate regulation

maintaining the integrity of the flame sensing circuit is paramount

This module is built to withstand extreme environments

Carrier EA03XC391 TXV 318973-401 standard HVAC mounting hardware kitsThe Carrier EA03XC391 is a high performance Thermostatic Expansion Valve (TXV) designed specifically for large tonnage residential and light commercial cooling applications. This 5 Ton R22 expansion valve is a precision engineered Carrier OEM replacement part, serving as the direct functional successor to the legacy EA03XC375 model. Built for durability and precise superheat regulation, it utilizes 5 8" x 1 1 8" ODF sweat connections to ensure a leak