The Carrier KH43LS091 is a genuine OEM filter drier engineered to maintain the integrity and efficiency of Carrier refrigeration and air conditioning systems. Designed as a direct replacement component, this filter drier plays a critical role in protecting the refrigerant circuit from the damaging effects of moisture, acid, and particulate contamination.
How It Works
Filter driers serve a dual purpose in any refrigerant system: the filter element captures solid particles and debris that can damage compressor valves and metering devices, while the desiccant core absorbs moisture and neutralizes acids that would otherwise cause corrosion, copper plating, and system breakdown. Installing a fresh filter drier during service or component replacement is a best-practice step that extends system life and maintains peak performance.
Key Features & Benefits
- Genuine Carrier OEM replacement filter drier — ensures proper fit and function
- Dual-function design: filters particulates and absorbs moisture and acid
- Helps protect the compressor, TXV, and other refrigerant-circuit components
- Maintains clean, dry refrigerant flow for optimal system efficiency
- Recommended replacement after any system opening or compressor burnout
- Engineered to meet Carrier’s original equipment specifications
Application
- Designed for use in Carrier residential and light commercial HVAC and refrigeration systems
- Ideal for installation during routine maintenance, system recharge, or major component replacement
- Always replace the filter drier when the refrigerant circuit has been opened to atmosphere
Installation Notes
Always install the filter drier in the correct flow direction as indicated on the body. Braze or connect per system specifications, and evacuate the system thoroughly before recharging with refrigerant. Consult the Carrier service manual for torque specs, refrigerant type, and charge weight applicable to your specific unit.
