IO Hvac Controls ZP3-HPS-ESP Control Kit 321894-706 providing flexibility for various piping

providing flexibility for various piping configurations

The Johnson Controls T-4002-122 is a professional-grade terminal connector engineered specifically for T-4002 series high-volume thermostats

reducing nuisance lockouts and ensuring stable furnace gas valve control across varying inlet pressures

Its compact solid core design allows for seamless integration into Lennox and Allied units

Whether you are troubleshooting a tripping pressure switch or performing a preventative low ambient kit overhaul

IO Hvac Controls ZP3-HPS-ESP Control Kit 321894-706 providing flexibility for various pipingThe iO HVAC Controls ZP3 HPS ESP Control Kit is a professional grade 3 zone heat pump zone control panel designed to streamline multi stage residential and light commercial HVAC zoning. By integrating Electronic Static Pressure (ESP) technology, this system allows contractors to eliminate the standard bypass damper entirely. The included ZPA SPS static pressure sensor continuously monitors system pressure; as dampers cycle, the panel modulates non