The is a 12-cylinder, open-drive reciprocating compressor engineered for large-capacity commercial HVAC and refrigeration. According to official Carrier installation and service manuals, this model is designed for field-serviceability and is compatible with modern refrigerants such as R-134a, R-404A, and R-407C. Key Technical Specifications
Only trained personnel should perform maintenance due to high system pressures. Always ensure the before servicing, and use only nitrogen or inert gas for pressure testing—never oxygen. Carrier 5H120 Manuals, Procedures & Parts List - MaintainX Carrier 5h120 Compressor Manual
Unlike smaller models, the 5H120 includes a full-flow oil filter with a replaceable cartridge. Always ensure the before servicing, and use only
Standard service instructions from Quality Refrigeration emphasize the following lubrication requirements: Includes 1/4" IPS gage connections for high and
Minimum required speed of 900 RPM and a maximum of 1,750 RPM .
Includes 1/4" IPS gage connections for high and low pressure monitoring. Installation Safety
Crankcase oil should range between 100°F and 135°F . If temperatures exceed 150°F , an oil cooler is recommended; if they hit 170°F , the unit must be stopped. Critical Service Torque and Connections