Common Questions Is the P170AA-2 compatible with the P170AA-2C

A healthy Lennox 19W61 ignitor should read between 25 and 47 Ohms

This direct replacement for EF17BG249 features a 1/2" suction and 3/4" discharge ODF (Over Deluxe Fitting) connection configuration

though technicians should always verify total external static pressure during installation

The VG7241LS is a valve body only

Carrier HH79NZ057 Thermistor 340155-7024 Common Questions Is the P170AA-2The Carrier HH79NZ057 Thermistor is a critical sensing component engineered specifically for low ambient control systems in Carrier, Bryant, and Payne condensing units. This thermistor monitors liquid line temperatures to provide precise feedback to the head pressure controller, ensuring stable refrigerant flow when operating in cooling mode during low outdoor temperatures. As a genuine OEM HVAC replacement part, the HH79NZ057 ensures accurate