Steve
The original is the Penguin heat pump that was installed at the factory in Oregon in 2005. It is controlled by a single zone 5 button thermostat. I am replacing it with the newer model Penguin II with the CCC2 control board pre-installed. Of course, I have to have the new style 10 button CCC2 thermostat. The wiring color codes for both units are identical. I have now installed the Penguin II and the CCC2 thermostat. The unit is functioning just as I expected it to. I have done some testing on the relay that Beaver originally installed and attached the "Load Shed" wires to. When 120 volt AC power is removed from the unit, the relay connects the 2 "Load Shed" wires together. When power is restored, the relay disconnects the 2 "Load Shed" wires. This relay may have had a purpose in higher end Beaver coaches that had a load shedding system installed. It seems to serve no purpose in my Monterey. The only thing I can speculate is that the Beaver factory used the same junction box regardless of whether the coach had a load shedding system or not. I am going to contact Dometic to determine if I can simply tape off the "Load Shed" wires (the yellow ones) and not connect them to anything.
Bill
The reason you had to cut one of the yellow wires to get your unit to work was because they were somehow, somewhere connected together. If the yellow wires are electrically connected, the unit will not run because it is in "Load Shed" mode.
I have learned a little bit, but am certainly still confused as to why the factory installed it the way they did originally. I will pass on any additional information I glean.
Richard
