The ZoneFirst MMPK is a professional-grade 3-zone control kit engineered for single-stage HVAC systems, serving as the direct functional successor to the legacy MMP3K model. Transitioning to the MMPK provides technicians with a streamlined Plug-In-Play zoning system that utilizes RJ11 modular jacks for rapid damper connections, significantly reducing field labor time. This kit includes the foundational MMP3 control panel, a dedicated T24 transformer, and a ZPS discharge air sensor to ensure high and low-limit protection for the heat exchanger and evaporator coil. Designed to support up to 3 zones of 1-stage heating and cooling, the board features screwless terminal blocks and EZ-Wiring color-coded connectors, making it compatible with any standard 4-wire or 5-wire 24VAC thermostat. The onboard LED status indicators provide real-time diagnostic feedback for system calls, purge modes, and individual zone activity, ensuring seamless commissioning for HVAC contractors. Key Benefits: Universal Compatibility: Operates efficiently with most 24V single-stage gas, oil, electric, or hydro-air systems. Rapid Installation: The Plug-In-Play architecture and modular cord dampers eliminate complex field wiring. System Protection: Includes a factory-supplied discharge air sensor to prevent equipment damage due to restricted airflow. Diagnostic Feedback: Integrated LED indicators allow for HVAC troubleshooting of calls and damper positions at a glance. Flexible Zoning: Easily handles 2 or 3 zones without requiring additional expansion modules for standard 1-stage setups. Common Questions: Is the MMPK compatible with my older MMP3K dampers?Yes, the MMPK maintains compatibility with previous RJ11 modular dampers used with the MMP3K series. If you are replacing an older board, your existing modular cords will plug directly into this updated panel. Do I need a separate transformer for this kit?While the kit includes a 40VA transformer, it is always recommended to use a dedicated power source rather than tapping into the air handler's internal transformer to ensure stable zone control operation. Can I use smart thermostats with this zoning panel?Absolutely. The ZoneFirst MMPK supports standard 1-stage smart thermostats, provided they are powered via a C-wire or the onboard R/C terminals. Disclaimer: While we strive for 100% accuracy, product data and specifications are subject to change. Please contact our team to confirm compatibility or technical details before purchasing. MMPK is the cross for MMP3 This item is not eligible for free shipping.
