Hi there. I have been given a Mitsubishi MUZ-FB35VA outdoor unit to play with, intending to make a water heater for a spa pool. I didnt get the indoor unit and here lies the problem. Plug the outdoor in and there is no signal to turn on the compressor. How do you bypass the control side of the circuit board so that when the unit is turned on the compressor just goes, along with the fan. Everything else is redundant or can be worked around. The reason I have this outdoor unit is because 1) its free 2) it 410a. Inverter complicates the system somewhat but there must be a way to get the compressor going. If anyone could help that would be great.