Originally Posted by Joshua Cavitt
Have you gotten to use it while running other appliances in the coach?
In a word, yes. Now for the details -
Shortly after completing the install, I started the generator, let it warm up for 5 minutes and then turned on the A/C on high. The converter (PD9200) was in boost mode as the batteries were a bit low and then I ran the microwave. The generator did not have any problems.
I let it run for quite a while, tried all three fan speeds and then let the engineer spouse come evaluate the install. She was thrilled at the noise level (or should I say lack of noise). We were able to hold a conversation at the dinette directly underneath the ceiling diffuser assembly with the diffuser wide open. It was quieter yet with the diffuser vents closed and even quieter with the fan on low.
Once on shore power, I checked the amperage draw on the Progressive Industries EMS remote display - 10 amps A/C on high with the converter in normal mode, 12 amps when the converter was in boost mode. I had checked the old Dometic under the same conditions - 3 amps more.
Keep in mind the Atwood I installed is the 15K heat pump unit, versus the 13.5K cool only Dometic that was required with the QD3200 diesel generator.
My recommendation would be to take a sound measurement in a unit with the Dometic A/C and compare it to the Isata 3. Mr. Clemens indicated Dynamax is using the Atwood. Clearly, the Atwood performs better (higher SEER), is much quieter and has a lower current draw than the Dometic. Additionally, given the cost of the diesel generator upgrade, if you ever decide to offer it again, increase the price another $150 and include the Atwood as part of the package.
Hope this information is useful to you.