Dometic Climate Control RV-C Gateway for iN-Command AC

The Dometic Climate Control Gateway is the small but important piece that lets your RV's iN-Command control system talk to a Dometic rooftop air conditioner. On its own, a Dometic AC runs off its own thermostat. This gateway bridges that unit onto the RV-C network so the whole climate side of your coach shows up right alongside your lights, tanks, and slides on the central iN-Command screen. One panel, one place to set the temperature.

Here's what that actually buys you. Instead of walking over to a wall thermostat, you set and check cabin temperature from the iN-Command touchscreen. The gateway carries both the cooling and the heating commands, so a heat-pump or furnace-equipped Dometic system responds the same way the compressor does. It reports status back too, so the panel shows you what the AC is actually doing, not just what you asked for. For a lot of owners that's the difference between a system that feels integrated and one that feels bolted together.

Fitment matters here, so read this part. This gateway is built specifically for Dometic air conditioners running under the iN-Command Control System. It speaks RV-C, the control-network standard that ties modern RV subsystems together. You'll also need a compatible Dometic thermostat or comfort control on the system. The gateway is the translator between the AC and iN-Command. It isn't the thermostat itself and it doesn't ship with a temperature sensor, so plan on having the matching control head in place.

Install is straightforward for anyone comfortable pulling an AC ceiling assembly or working behind an iN-Command panel. It's a genuine Dometic factory part, so it drops into the intended harness without adapters or splicing. Most of the work is routing to the right connector and confirming the AC and the iN-Command controller are both on current firmware so they pair cleanly. Once it's in and paired, cycle the AC from the iN-Command screen to confirm the panel and the unit actually agree before you close everything back up. If you've added a Dometic AC to a coach that already has iN-Command, or you're replacing a failed gateway, this is the part that gets the two speaking again.

A quick note on part numbers. This is Dometic 3316945.000. Dometic now also lists it under the newer number 3316945.010, and the two are interchangeable for this application. If your parts diagram or an installer calls out either number, you're looking at the same gateway. We stock the genuine Dometic component, not a rebranded copy, which matters when you're tying into a factory control network that's picky about what it talks to.

Who's this for? Owners of travel trailers, fifth wheels, and motorhomes that came with, or were upgraded to, the iN-Command system and a Dometic rooftop unit. If your rig doesn't use iN-Command, or your AC isn't a compatible Dometic model, this isn't the part you want, and we'd rather tell you that up front than sell you the wrong box. But if you're running that combination and the climate control has dropped off your panel, this gateway is almost always the fix. Not sure whether your setup matches? Send us your AC model and iN-Command details and we'll confirm before you order.

One more thing worth saying. Because this gateway lives on the RV-C bus, it wants clean, steady power and solid connections at every plug. Loose grounds and voltage sag are the usual suspects when a climate readout goes flaky, so if you're chasing an intermittent problem, check the wiring before you condemn the part. Wired right and paired to matching firmware, it just works in the background and you stop thinking about it, which is exactly what you want from a control-network component.