The Trane CPT1166 is a heavy-duty 25/4 MFD 440V Round Run Capacitor engineered specifically for performance in residential air conditioning and heat pump systems

As a high-performance HVAC flame sensor replacement

and PRO 3000

With a 3-1/4 inch insertion length and a two-pole configuration

the system throwing a high-limit lockout code

Schneider Electric (Barber Colman) ETR503 Temperature Sensor The Trane CPT1166 is aThe Schneider Electric (Barber Colman) ETR503 Temperature Sensor is a critical component for maintaining precise environmental control within commercial and industrial Continuum systems. This 10K Ohm Type 3 thermistor provides reliable, non polarity sensitive temperature monitoring with an accuracy profile of + 0. 4F (+ 0. 2C) across standard operating ranges. Designed for high interchangeability, the ETR503 eliminates the need for field calibration,