The BMPlus-3z Zone Control System delivers advanced HVAC zoning performance in a streamlined, installer-friendly package. Designed with contractors in mind, it brings together compatibility, flexibility, and reliability to meet the demands of today’s diverse residential and light commercial projects. Out of the box, the BMPlus-3z controls two or three zones, and can easily expand to six or nine zones using XM-3z expansion panels, perfect for both retrofit and new

construction applications.

• Controls 2–3 zones, expandable to 6 or 9 with XM-3z expansion panel.
• Large LCD display with simple 4-button navigation and real-time system status.
• Universal thermostat compatibility, including most WiFi models.
• Works with single or multi-stage gas, oil, electric, hydronic, heat pump, and dual-fuel systems.
• Integrated safety interlock for A2L refrigerant leak sensors, wet switches, and smoke detectors.
• Multiple staging options: Stage by Weight, 50% Rule, or Time-Based.
• Fresh Air control option with adjustable outdoor air temperature limits.
• Fully compatible with EWC motorized dampers, DAPC static pressure control, and Smart Bypass Dampers.