iO HVAC Controls 4-Zone Universal 3H/2C Zone Panel with ESP — The ZP4-ESP is a 4 zone panel that integrates our award winning ESP technology to completely eliminate the need to install a bypass damper. This 3H/2C zone panel comes with a static pressure sensor. The system works like any standard zone control system with one exception; a static pressure sensor continuously monitors the system static pressure. If the static pressure goes above setpoint, the ESP panel will power the selected non-calling zone dampers open just enough to relieve the excess pressure. Tests indicate that bleeding a small amount of conditioned air for a short time into non-calling zones has little to no impact on the zone temperature.

Enables multi-zone comfort control from a single HVAC unit, letting homeowners heat or cool individual rooms independently. Ideal for homes with varying temperature needs across different areas.

Features & Benefits

• The panel can be used with single-stage, multi-stage, heat pump or dual fuel equipment. A wide range of control options provide ultimate application flexibility including adjustable high/low limits, adjustable high/low balance point, and 2 zone, 2nd stage capacity control.
• Features:
• 4 zone universal panel with ESP capability
• Smallest universal panel offered by iO
• Up to 2H/2C conventional or 3H/2C heat pump and dual fuel
• Auto changeover
• First call priority with time share
• 2 zone, 2nd stage capacity control
• Purge cycle option
• Adjustable high and low limits
• Adjustable high and low balance points
• Easy switch configuration
• Fused protected inputs and outputs

Technical Specifications

• Warranty: 10 Years
• Zones: 4
• ESP / Static Pressure Control: Yes
• System Type: Conventional, Dual Fuel, Heat Pump
• Stages: 3 Heat/2 Cool
• UPC: 840119913491
• Dimensions (W×H×D): 9.50" × 4.50" × 12.75"
• Product Weight: 2.50 lbs