Resideo V2040DSL20 Straight Body 320720-756 and KN-30 models as a

and KN-30 models as a single unit

The Johnson Controls P400BD-1 Pressure Switch provides critical single point differential oil pressure monitoring for commercial refrigeration and HVAC compressors

Using non-spec wiring can lead to RFI interference or insulation failure

Different switches have varied "make" and "break" air velocity requirements

the P142700 gasket must be purchased separately

Resideo V2040DSL20 Straight Body 320720-756 and KN-30 models as aThe Resideo V2040DSL20 Straight Body is a standard capacity thermostatic radiator valve engineered for precision temperature control in one pipe steam and hydronic heating systems. Designed with a 3 4" NPT female inlet and a 3 4" male union tailpiece, this valve is particularly suited for straight run piping in baseboard radiators and convectors where manual valves require upgrading. Its nickel plated bronze construction ensures long term durability,