R22 ac rotary compressor

Buyers must prioritize Cooling Capacity (BTU/h or kW) to ensure it matches the target AC unit's requirements. Key metrics include the Energy Efficiency Ratio (EER), where a higher value indicates lower operational costs. Additionally, verify the Displacement (cm³/rev) and Power Supply compatibility (e.g., 220-240V/50Hz or 115V/60Hz). For long-term reliability, ensure the unit features internal thermal protection and high-grade copper windings rather than aluminum alternatives.

Suppliers should hold ISO 9001 for quality management. For specific markets, look for CE (Europe), UL (North America), or CCC (China) marks. Since R22 is an HCFC refrigerant subject to the Montreal Protocol, ensure the compressor is compatible with mineral oil (MO) and that your local regulations permit the import of R22-designed equipment, as many regions are transitioning to R410A or R32.

Request the original factory test report and a Certificate of Origin. Authentic compressors feature laser-engraved serial numbers on the housing that should match the packaging and documentation. When sourcing via Made-in-China.com, prioritize Audited Suppliers who have undergone third-party verification by SGS or TÜV Rheinland to ensure they are not selling refurbished units as new.

These compressors are primarily used in residential split-type air conditioners, window units, and dehumidifiers. They are designed for High Back Pressure (HBP) applications. It is critical to note that rotary compressors should not be tilted more than 30 degrees during installation or transport to prevent oil from entering the cylinder, which can cause liquid hammer and mechanical failure.

The main risks include moisture ingress and physical impact. Compressors must be hermetically sealed with rubber plugs to prevent internal oxidation. Ensure the supplier uses palletized packaging with reinforced corner protectors and vacuum-sealed plastic wrapping. For sea freight, specify the use of desiccants inside the crates to prevent rust during long-duration transit.

Compressor pricing is highly sensitive to raw material costs (copper and steel). Negotiate based on a tiered volume structure; for example, a full container load (FCL) typically yields a 5-10% discount compared to LCL. On Made-in-China.com, look for suppliers offering flexible MOQs (e.g., 20-50 units) for initial trial orders to verify the failure rate before committing to large-scale procurement.

Always use Secured Payment services provided by the platform to ensure funds are only released after proof of shipment. For large orders, insist on a Pre-shipment Inspection (PSI) by a third party to verify the quantity, model numbers, and pressure leak tests. Ensure the Proforma Invoice (PI) clearly states the warranty period, which should ideally be 12 to 24 months.

Compressors contain a small amount of refrigeration oil, which may classify them as Class 9 Miscellaneous Dangerous Goods depending on the carrier and local customs. Ensure the supplier provides a Material Safety Data Sheet (MSDS) and a Non-Hazardous Declaration for Transport. For shipping to regions like Southeast Asia or Africa, FOB (Free On Board) is often preferred to allow the buyer better control over the final leg of logistics and customs clearance.