Carrier PP23BB006 Oil 320720-756 the CNT2237 is a proprietary

the CNT2237 is a proprietary Trane defrost controller

engineered to interface directly with the control board via a standard 1/4 inch male quick-connect terminal

Is this compatible with 208V systems

Always cross-reference the Lennox 51W90 specific pressure rating with your technical service manual

the 2721-456 features a standard end-hinge configuration used by major burner manufacturers to allow for easy access to the nozzle assembly during service

Carrier PP23BB006 Oil 320720-756 the CNT2237 is a proprietaryThe Carrier PP23BB006 Oil is a specialized 5 gallon mineral oil engineered specifically for high tonnage centrifugal compressors. As a Carrier Factory Authorized Part, this lubricant is the baseline standard for maintaining the internal assemblies of Carrier 17 19D, 17 19E, and 17 19FA series machines. Formulated to handle the high velocity and tight clearances of centrifugal impellers, this mineral centrifugal oil provides exceptional thermal