Description
The Carrier 33B0043N03 is an OEM thermostatic expansion valve (TXV) engineered for reliable, precise refrigerant metering in residential and light-commercial air conditioning systems. Designed specifically for use with R410A refrigerant and rated for 2-ton cooling capacity, this TXV delivers consistent superheat control to maximize system efficiency and protect the compressor from liquid floodback.
Key Features
- OEM Carrier replacement TXV for direct-fit installation
- Rated for R410A refrigerant — compatible with modern, environmentally preferred systems
- 2-ton (24,000 BTU/hr) cooling capacity rating
- 3/8″ inlet x 3/8″ outlet connection size for straightforward line integration
- B15 bulb charge type for accurate superheat sensing across a wide operating range
- 30″ capillary tube length provides flexible bulb placement during installation
- Maintains precise superheat control to optimize evaporator performance and system efficiency
- Protects the compressor by preventing liquid refrigerant from returning to the suction line
Specifications
- SKU / Part Number: 33B0043N03
- Brand: Carrier
- Refrigerant Type: R410A
- Capacity: 2 Ton
- Inlet / Outlet Connection: 3/8″ x 3/8″
- Bulb Charge: B15
- Capillary Tube Length: 30″
- Valve Type: Thermostatic Expansion Valve (TXV)
Application
This Carrier TXV is intended as a direct OEM replacement for split-system and packaged air conditioning equipment using R410A refrigerant. Proper TXV selection and installation are critical to maintaining manufacturer-rated efficiency ratings and equipment longevity. Always verify the part number against your equipment’s service literature before installation.
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