The Advantages of Buying Remanufactured
Understanding the critical differences between rebuilt and fully remanufactured commercial compressors.
Rebuilt vs. Remanufactured Compressors
When looking for a compressor replacement, the owner, manager, or operator of a public, commercial, or industrial facility will come across three main options: OEM, remanufactured, and rebuilt units. Although remanufactured and rebuilt compressors might seem identical at first glance, they are completely different.
Rebuilt Compressors
When rebuilding a compressor, parts are cleaned, repaired, or partially rebuilt to meet initial mechanical tolerances. If a component is too worn, the rebuilder uses a similar part from another used compressor.
Remanufactured Compressors
The compressor has been completely remanufactured to meet the standards of a new unit. We clean and replace old components with new items, bringing all mechanical tolerances up to the latest OEM standards.
Our 12-Step Remanufacturing Process
The increasing complexity of today's HVAC/R applications demands a rigorous and thorough process. Here is how we ensure every unit meets the highest standards.
Refrigerant Draining
The refrigerant or refrigerant-oil mixture is drained and properly disposed of.
Disassembly & Inspection
The compressor is disassembled to bare casting. Each casting is inspected for visible defects and cracks. The castings in good condition are dispatched to cleaning and de-rusting to bare metal.
Crankcase Integrity
The crankcase is visually inspected for integrity of gasket surfaces and threaded holes.
Component Replacement
All critical air conditioning and refrigeration compressor parts, including bearings, inserts, seals, piston rings, suction and discharge valves, are properly discarded and replaced with new items.
Valve Plates
The valve plates are replaced with new ones or reground to ensure good valve seating. All valve plates are reassembled with new reeds and springs.
Crankshaft & Pistons
The crankshaft, pistons, rods, and liners are cleaned to a bright finish and checked to ensure they meet current OEM tolerances. If a component does not meet the tolerances specified, it is discarded and replaced with a new part.
Cylinder Honing
Cylinder holes are inspected for physical damage. The cylinders are dimensionally inspected and re-honed to OEM specifications in order to ensure proper seating of new rings.
Motor Upgrading & Testing
When upgrading the motor, the stator is electronically tested. A malfunctioning stator is charred under controlled temperatures, rewound, immersed in clear varnish, and retested. The rotor is surge tested and evaluated to guarantee initial start up under load.
Oil Pump Compliance
The oil pump is visually and dimensionally inspected, upgraded, reassembled, and tested to ensure compliance with specifications for oil flow and pressure.
Reassembly & Leak Testing
The compressor is reassembled, with all bolts torqued to specifications. It is sealed with blank-off plates, charged with nitrogen, and leak tested by total immersion in a clear liquid. Leaks are repaired.
Recharging & Run Testing
After passing the leak test, the compressor is recharged. Every single compressor that we remanufacture is run tested under load to ensure proper oil pressure, amperage, loading, unloading, and pump-down capabilities.
Record Keeping
Careful records, including work and test sheets, are filed throughout the remanufacturing process.
Strict Quality Control & Peace of Mind
During the remanufacturing process, our technicians use product data sheets to determine proper tolerances, torques, and operating specifications. When necessary, we collaborate with OEMs and factory-authorized remanufacturers to ensure our customers receive the highest quality products.
Companies that use recycled parts have a responsibility to ensure those items meet or exceed current OEM tolerances. Compressors Unlimited proudly accepts that responsibility and backs it up.
Comprehensive Coverage
Every remanufactured compressor comes with robust protection.
View Our 12-Month Limited Warranty