Second Non-Ducted AC Question
I installed a new second 13.5 Dometic non-ducted AC on my Salem in our bedroom. We like running it at night because A: it drowns out all outside noises B: I like sleeping with the room being very cool...
Forum Discussion
ExT, I'm relying on memory about that old (1983 vintage) Coleman Mach 13500. There was some kind of diverter with a lever. Had to remove the plastic inside cover to access it. Might have only served to block discharged air from one set of louvers so it all went out the other. I remember finding it, thinking it interfered with something I wanted it to be doing better, and disabled or removed it.
OP, You can go to the Dometic site and get the wiring diagram. There may be one on the unit, once you remove the plastic cover. I know there's one there on Coleman. If your complaint is that the fan is running when the compressor is not, I'm sure you could wire it to the Fan was controlled by the Thermostat just like the Compressor is. That said, you will DRAMATICALLY increase the startup AMPS when the Thermostat kicks both Fan and Compressor in simultaneously. You might even want to install a Relay to handle the load so it doesn't impact the Thermostat. From there, you could devise a circuit to start the Fan shortly before the Compressor. The Ducted units with Wall Thermostat have a Control Board that can do all these tricks. At least in Coleman, the non-ducted machines have only a Mode Select (Low/High Fan and A/C with Low/High Fan) and a Thermostat with a graphic representing Cool and Cooler. Your Dometic might represent Cool and Cooler with Numbers like "68" as you mentioned but Coleman doesn't. That's what threw me off when I read the OP and thought maybe it was a non-ducted WITH wall t'stat.
About all I can add is:
1. I'd try to get used to it, and
2. Non-ducted also does NOT have a "freeze sensor" to keep from frosting up and cutting off air flow. Running fan on High helps avoid frosting.
3. Again Coleman, but our 15000 Mach unit has a two-speed 1/3-HP blower motor. We call the two Fan Speeds "Very Loud" and "Even Louder."
OP, You can go to the Dometic site and get the wiring diagram. There may be one on the unit, once you remove the plastic cover. I know there's one there on Coleman. If your complaint is that the fan is running when the compressor is not, I'm sure you could wire it to the Fan was controlled by the Thermostat just like the Compressor is. That said, you will DRAMATICALLY increase the startup AMPS when the Thermostat kicks both Fan and Compressor in simultaneously. You might even want to install a Relay to handle the load so it doesn't impact the Thermostat. From there, you could devise a circuit to start the Fan shortly before the Compressor. The Ducted units with Wall Thermostat have a Control Board that can do all these tricks. At least in Coleman, the non-ducted machines have only a Mode Select (Low/High Fan and A/C with Low/High Fan) and a Thermostat with a graphic representing Cool and Cooler. Your Dometic might represent Cool and Cooler with Numbers like "68" as you mentioned but Coleman doesn't. That's what threw me off when I read the OP and thought maybe it was a non-ducted WITH wall t'stat.
About all I can add is:
1. I'd try to get used to it, and
2. Non-ducted also does NOT have a "freeze sensor" to keep from frosting up and cutting off air flow. Running fan on High helps avoid frosting.
3. Again Coleman, but our 15000 Mach unit has a two-speed 1/3-HP blower motor. We call the two Fan Speeds "Very Loud" and "Even Louder."
