Heat Ready Zone Control

Coleman 9430A755 64396 Zone Control Kit Cool and Heat Ready Control Kit for RVP Coleman-Mach RV Comfort.ZC. Zone Control (Heat Ready) Recommended Replacement for: Coleman 8330C5091/8330D755 Note: The old zone control part numbers are a single-wire communicating thermostat/control box while the new zone control part numbers are a 2-wire RS485 communicating thermostat/control box.The old version and new version are not backwards compatible, they will not work in any combination together, all components either have to be old or new, no mix.