Johnson Controls P499VAP-105K Pressure Transducer Kit 321042-401 The Nordyne 621898R Relay is

The Nordyne 621898R Relay is a heavy-duty Normally Open (N/O) 30Amp Relay designed for critical switching in HVACR systems

and unit heaters requiring an intermittent pilot ignition

this model serves as the direct replacement for 120F0072

accommodating both cooling and heating equipment

the fan running continuously even when the thermostat is satisfied

Johnson Controls P499VAP-105K Pressure Transducer Kit 321042-401 The Nordyne 621898R Relay isThe Johnson Controls P499VAP 105K is a precision electronic pressure transducer engineered for demanding HVACR applications, providing a linear 0 to 10 Vdc output signal. Designed for high side pressure monitoring in commercial refrigeration and air conditioning systems, this kit features a 0 to 500 psi range with a robust 1 8" 27 NPT external thread fitting. As the direct replacement for the legacy P499VAP 105, it utilizes a stainless steel