Dwyer Instruments TSS2 2100 Temperature Switch 321894 706 The York 022 09503 000 Valve is The York 022 09503 000 Valve is a 1 4" x 1 4" integrated discharge transducer valve specifically engineered for high demand chiller maintenance and industrial air cooled or water cooled systems Common Questions Is the S89850000 motor compatible with original Nutone blower wheels Environmental Resilience: An IP64 front panel rating protects the controller against dust and water splashes common in commercial kitchens and mechanical rooms The Dwyer Instruments TSS2 2100 is an industrial grade dual stage temperature switch designed for precision thermal management in high demand HVACR applications