IO Hvac Controls ZP6-ESP-KIT Control Kit 321142-301 Includes both defrost relay and

Includes both defrost relay and defrost thermostat for complete control

allowing for precise field adjustments of setpoints for both potable water and hydronic heating applications

For field technicians and contractors managing residential or light commercial furnace repairs

Can I use a standard 3-jaw puller to remove the old sheave without damage

Key Benefits OEM Compatibility: Exact replacement for Lennox 72L12 and cross-referenced with part number 3100-20Q18999C

IO Hvac Controls ZP6-ESP-KIT Control Kit 321142-301 Includes both defrost relay andThe iO HVAC Controls ZP6 ESP KIT is a professional grade 6 zone universal zone control panel designed to streamline forced air zoning for residential and light commercial applications. This comprehensive kit integrates Electronic Static Pressure (ESP) technology, which continuously monitors system pressure via the included static pressure sensor. When static pressure exceeds the user defined setpoint, the panel automatically modulates non calling 3