Johnson Controls P66AAB-1 Control Refrigerant protecting the thermal expansion valve

protecting the thermal expansion valve and compressor from premature failure due to system contamination

and air handler chilled water circuits

This internally equalized valve body includes 3/8" x 1/2" ODF extended solder connections to simplify installation and provide a leak-proof seal

this electronic ignition control is engineered to manage the sequence of operation for intermittent pilot systems

Johnson Controls P66AAB-1 Control Refrigerant protecting the thermal expansion valveThe Johnson Controls P66AAB 1 is a high performance electronic fan speed control specifically engineered for HVACR professionals managing condenser head pressure. Designed as a superior alternative to traditional fan cycling, this pressure actuated motor speed controller maintains stable head pressure by modulating fan speed in response to direct refrigerant pressure. This model operates within a 190 to 250 psig range, making it ideal for high