The Trane COM11188 is a high-performance 25,300 BTU scroll compressor designed specifically for R-22 refrigerant applications in residential and light commercial HVAC systems. Operating on a 230V single-phase electrical configuration, this Alliance-manufactured hermetic unit (Model SXE025C1BPZ) provides a reliable 2.1-ton cooling capacity for direct OEM replacement. Unlike older reciprocating models, this fixed-speed scroll compressor utilizes a smooth orbital motion to reduce internal friction, resulting in superior energy efficiency and quieter operation on the job site. With a 3/4" suction and 1/2" discharge connection via brazed stub tubes, the Trane 2.1 ton compressor ensures a standard fit for technicians servicing American Standard and Trane air conditioners or heat pumps. This unit comes pre-charged with POE (polyolester) oil to support the mechanical integrity of the scroll set during high-load cycles. When replacing obsolete components like COM3777 or COM7218, the COM11188 maintains original system pressure requirements and electrical draw specifications. Key Benefits Broad Replacement Compatibility: Serves as the direct OEM successor for various obsolete Trane and American Standard part numbers, including COM3689, COM7218, and COM7277. Enhanced Efficiency: The R-22 scroll compressor design offers improved volumetric efficiency and higher tolerance to liquid slugging compared to piston-driven units. Low Vibration Performance: Engineered for minimal acoustic impact, making it the preferred choice for noise-sensitive residential installations. Robust Construction: Features a durable cast iron housing and internal motor protection to handle demanding 208-230V 60Hz operating environments. Common Questions Is the COM11188 compatible with R-407C retrofits? Yes, while originally designed for R-22, this compressor is shipped with POE oil, making it suitable for systems being converted to R-407C, provided all standard retrofit protocols are followed. What are the mounting dimensions for this unit? The unit features a standard 7.50" x 7.50" mounting footprint, allowing it to drop into most Trane 2-ton condenser chassis without piping modifications. Does this compressor require a hard start kit? While not always mandatory for single-phase scroll units, installing a compressor hard start kit is a professional best practice to assist the motor during high-ambient start-up conditions. This item must be shipped via trucking. Please contact us for a freight quote. 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.
