Zonefirst MMZ3 Control Panel 30067439-890 this kit provides a robust

this kit provides a robust mechanical interface for 1/2 inch to 2 inch valves

Precise Signal Accuracy: The 1k ohm platinum element provides high-fidelity resistance feedback for critical climate control loops

this switch is "normally closed" and should show near-zero resistance

this module is the go-to direct-fit replacement to restore furnace flame sensing accuracy

and the TR150VA001 delivers with both foot and single threaded hub mount options

Zonefirst MMZ3 Control Panel 30067439-890 this kit provides a robustThe Zonefirst MMZ3 is a purpose built zoning control panel engineered for single stage heating and cooling systems. As the direct replacement for CMM 3 legacy boards, the MMZ3 provides seamless modularity for managing 2 or 3 independent zones with 24Vac 2 or 3 wire damper actuators. This panel features advanced surface mount technology for maximum reliability and utilizes color coded, screwless terminal blocks to significantly reduce installation time