A DPDT (Double Pole Double Throw) relay like the S1-024-23972-000 acts like two separate SPDT relays controlled by one coil

It is commonly used in legacy HVAC zoning system repairs where multiple SPDT contact closures are required from a single 24V source

While it does not include a temperature-sensitive element like standard T&P valves

the integrity of your linkage assembly determines the accuracy of your airflow control

Is the HH12ZB200 compatible with older Bryant or Payne units

Trane VAL3615 TXV R-410A A DPDT (Double Pole DoubleThe Trane VAL3615 is a high precision thermostatic expansion valve (TXV) engineered for R 22 refrigerant systems with a nominal 1. 5 ton capacity. Designed as an OEM replacement for residential air handlers and heat pumps, this HVAC expansion valve regulates refrigerant flow to maintain stable evaporator superheat, protecting the compressor from liquid slugging while maximizing heat transfer efficiency. This valve features a 3 8 x 1 2 ODF sweat