Description
Overview
The Copeland 065943 (model AACE 3 SW195 30IN 3/8 X 1/2 ODF S/T) is a precision-engineered Thermal Expansion Valve (TXV) designed for R410A refrigerant systems with a 3-ton capacity rating. Featuring external equalization, an integrated internal check valve, and a bleed hole, this valve delivers reliable and accurate refrigerant metering for high-efficiency residential and light commercial air conditioning applications.
Key Features
- Refrigerant: R410A compatible
- Capacity: 3 Ton
- Connection type: Sweat (ODF) — 3/8″ inlet x 1/2″ outlet
- Body style: Straight body configuration
- Capillary tube length: 30 inches for flexible installation routing
- Maximum Operating Pressure (MOP): 195 PSI charge for overload protection
- Equalization: Externally equalized for accurate superheat control across longer evaporator circuits
- Internal check valve: Enables bi-directional flow for heat pump applications
- Bleed hole: Ensures pressure equalization during off-cycle for reliable restart
Technical Specifications
- SKU / Part Number: 065943
- Model: AACE 3 SW195 30IN 3/8 X 1/2 ODF S/T
- Brand: Copeland
- Refrigerant Type: R410A
- Capacity: 3 Ton
- Inlet Connection: 3/8″ ODF Sweat
- Outlet Connection: 1/2″ ODF Sweat
- Capillary Tube Length: 30″
- MOP Charge: 195 PSI
- Equalization Type: External
- Internal Check Valve: Yes
- Bleed Hole: Yes
Application
Ideal for use in split-system air conditioners and heat pumps using R410A refrigerant. The external equalizer port ensures accurate superheat control in evaporators with significant pressure drop, while the internal check valve supports heat pump reversing cycle operation. The 195 PSI MOP charge protects the compressor from liquid slugging during high-load conditions. The 30″ capillary tube provides installation flexibility in a variety of equipment configurations.







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