The DP4T slide switch travel can be modified by installing specific switch legend plates (ordered separately)

OEM Compatibility: Exact dimensional match for Reznor unit heater maintenance

Using this on a natural gas system will result in an undersized pilot flame and ignition failure

while a built-in inlet flow deflector directs liquid toward the shell wall for gradual expansion and safe evaporation

It is also compatible with older part numbers including HH12ZA193 and P331-2205

Johnson Controls P66BBB-1 Motor Speed Control Els PW 29614 The DP4T slide switch travelThe Johnson Controls P66BBB 1 is a robust condenser fan motor speed control designed to maintain stable head pressure by modulating motor speed in response to refrigerant pressure changes. Engineered for single phase motors, this electronic controller eliminates the cycling issues common in low ambient conditions, ensuring consistent system performance. This specific model operates within a pressure range of 170 to 230 psi and features a high pressure