Carrier KH45LD065 Filter Drier

The Carrier KH45LD065 Filter Drier is a critical liquid line component designed for HVAC system protection in residential and light commercial applications. Featuring 3/8" ODF sweat connections, this factory authorized part ensures a precise OEM fitment for Carrier, Bryant, and Payne units, specifically R-22 refrigerant systems and modern high-pressure environments. This desiccant-based drier effectively captures moisture, acid, and solid contaminants, preventing capillary tube clogging and protecting the compressor from premature failure.

As a high-capacity replacement for discontinued part numbers such as 493-4733 and 493-4814, the KH45LD065 provides the reliable filtration necessary to maintain optimal system performance and heat transfer efficiency. The robust steel shell is built to withstand standard operating pressures, while the internal filter drier core provides the necessary acid neutralization required after a burnout or during routine refrigeration maintenance. For technicians, the 3/8 inch ODF ports allow for a standard brazed installation without the need for additional adapters.

Key Benefits:

• Direct OEM replacement for a wide range of Carrier, Bryant, and Payne air conditioners and heat pumps.
• High-efficiency desiccant removes moisture and neutralizes harmful acids to extend compressor life.
• Standard 3/8" ODF sweat fittings facilitate a seamless refrigerant line installation.
• Advanced filtration traps particulate matter to prevent expansion valve (TXV) plugging.
• Factory authorized construction ensures compatibility with both R-22 and R-410A refrigerants.

Common Questions:

Is the KH45LD065 compatible with R-410A systems?
Yes, while originally specified for many R-22 units, this liquid line filter drier is built to handle the pressures and lubricant requirements of modern refrigerants provided the 3/8" line size matches.

Can I use this drier in a bidirectional heat pump application?
This is a standard liquid line drier; technicians should verify if the specific system configuration requires an internal check valve for heat pump heating/cooling cycles or if it is installed in a line that only flows in one direction.

What are the cross-reference part numbers for this item?
The KH45LD065 replaces multiple older Carrier part numbers, including 299636, 493-4733, 493-4788, and 493-4814.

Disclaimer: While we strive for 100% accuracy, product data and specifications are subject to change. Please contact our team to confirm compatibility or technical details before purchasing.