Copeland 065637 TXV, R404A/R507/R502, 1 Ton, 3/8″ x 1/2″ Sweat, Ext. Equalized

Description

Overview

The Copeland 065637 (Model AAE 1 SW45 5FT 3/8 x 1/2 ODF S/T) is a precision-engineered Thermal Expansion Valve (TXV) designed for reliable refrigerant metering in commercial refrigeration and HVAC applications. Built to handle R404A, R507, and R502 refrigerants, this externally equalized valve ensures accurate superheat control across a wide range of operating conditions, making it an ideal replacement or new-installation component for medium- and low-temperature systems.

Key Features

• Refrigerant compatibility: R404A, R507, and R502
• Rated capacity: 1 Ton
• Connection type: Sweat (ODF) — 3/8″ inlet x 1/2″ outlet
• Body style: Straight body for straightforward inline installation
• Capillary tube length: 5 feet for flexible remote bulb placement
• MOP (Maximum Operating Pressure) charge: 45 PSI — prevents evaporator flooding at startup
• Externally equalized design for accurate superheat control on systems with higher pressure drops
• Model number: AAE 1 SW45 5FT 3/8 x 1/2 ODF S/T

Technical Specifications

• SKU: 065637
• Brand: Copeland
• Refrigerants: R404A / R507 / R502
• Capacity: 1 Ton
• Inlet Connection: 3/8″ ODF Sweat
• Outlet Connection: 1/2″ ODF Sweat
• Body Style: Straight
• Capillary Tube Length: 5 Feet
• MOP Charge: 45 PSI
• Equalization: External

Application

This TXV is well-suited for use in commercial refrigeration display cases, walk-in coolers and freezers, and other systems utilizing R404A, R507, or legacy R502 refrigerant circuits. The 45 PSI MOP charge protects the compressor during off-cycle starts by limiting the evaporator pressure, while the external equalizer port ensures precise superheat regulation even when the evaporator coil exhibits a significant pressure drop across its circuit.