Featuring a robust bronze body and seat

Engineered with a normally closed configuration and a 2-way flow design

Whether you are performing routine PMs or addressing a failed component

including the D4120

though this can be field-adjusted between 70 and 220 seconds using MFT software

Carrier P903-2305 Compressor Oil 322027-701 Featuring a robust bronze bodyProfessional grade Carrier P903 2305 Compressor Oil is a high performance polyol ester (POE) lubricant specifically engineered for modern HVACR systems. Designed as a synthetic screw compressor oil, this fluid features an ISO viscosity grade of 220, providing exceptional thermal stability and lubrication across heavy duty commercial applications. This POE 220VS oil is the OEM approved lubricant for high capacity Carrier chillers and screw compressors,