Atwood Heat Pump
Boy did I make a mistake buying this piece of ****.....first off the fan runs all the time when in A/C mode.....this weekend it got into the high 40's so I turned it to heat and it cycled on and off a...
Forum Discussion
There is no wiring diagram of which I am aware either, but the unit does not use the relays as the Colemans do. The diagram on the inside of the cover is not much more detailed.
Have you tried running it with the two vent doors open?If it is short circuiting, that should make it run longer.
It would help to know more about your installation. What was in there and what came out - how you checked it for fit and function etc before deciding to install it. What is the unit you have installed it in, etc. Since the installer did this for you, he should be able to tell you what he did and why he thinks it is working as good as it should.
Like I said, mine works like a champ except for the idiosyncrasies that I mentioned and I had to mess with Intellitec interface as well. Dometic is clearly trying to kill this unit - Atwood had signed an agreement with the designer of the Cormorant and Dometic is being forced to sell it until they can prove that it is not a good product. Unfortunately, their own product (the small one) is pretty poor also and has lots of problems.
Update: I looked at the board (quite cursorily) and I believe that there would be very little value-add to have a more complete diagram. There is a diagram similar to the one in the installation manual on the unit (inside - you have to take off the roof-top cover to get at the electronics, it is not available from the inside of the coach). The only other diagram information would be to detail the thermostat, which you know they aren't going to do. I suspect that they use a microprocessor on the thermostat to interpret the inputs from the thermistors (four) and determine the situation for the operation based on that information.
Have you tried running it with the two vent doors open?If it is short circuiting, that should make it run longer.
It would help to know more about your installation. What was in there and what came out - how you checked it for fit and function etc before deciding to install it. What is the unit you have installed it in, etc. Since the installer did this for you, he should be able to tell you what he did and why he thinks it is working as good as it should.
Like I said, mine works like a champ except for the idiosyncrasies that I mentioned and I had to mess with Intellitec interface as well. Dometic is clearly trying to kill this unit - Atwood had signed an agreement with the designer of the Cormorant and Dometic is being forced to sell it until they can prove that it is not a good product. Unfortunately, their own product (the small one) is pretty poor also and has lots of problems.
Update: I looked at the board (quite cursorily) and I believe that there would be very little value-add to have a more complete diagram. There is a diagram similar to the one in the installation manual on the unit (inside - you have to take off the roof-top cover to get at the electronics, it is not available from the inside of the coach). The only other diagram information would be to detail the thermostat, which you know they aren't going to do. I suspect that they use a microprocessor on the thermostat to interpret the inputs from the thermistors (four) and determine the situation for the operation based on that information.
