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The Johnson Controls T-4002-122 is a professional-grade terminal connector engineered specifically for T-4002 series high-volume thermostats
this non-bleed expansion valve maintains optimal superheat across varying load conditions
Its compact solid core design allows for seamless integration into Lennox and Allied units
providing flexibility for various piping configurations
IO Hvac Controls ZP3-HPS-ESP Control Kit 321894-706 The Johnson Controls T-4002-122 isThe 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
