IO Hvac Controls ZP4-ESP-KIT Control Kit 321142-301 this is the induced draft

this is the induced draft housing only

PAS-2100 is identical to PAS-2100-3

It is critical to use the provided Loctite on the set screw to ensure the fan blade remains secure during operation

The inducer relay will energize the blower

Key Benefits OEM-Grade Thermal Resistance: High-grade ceramic insulation prevents voltage tracking and failure under extreme heat

IO Hvac Controls ZP4-ESP-KIT Control Kit 321142-301 this is the induced draftThe IO HVAC Controls ZP4 ESP KIT is a professional grade 4 zone control panel designed to streamline complex forced air installations. Engineered for high performance HVAC zoning systems, this universal panel supports single stage, multi stage, heat pump, and dual fuel equipment with up to 3 stages of heating and 2 stages of cooling. By integrating advanced Electronic Static Pressure (ESP) logic, this kit effectively eliminates bypass dampers when