The first step is to position the blower/evaporator unit. Mount the bracket and then find a location for the compressor unit outside. Make a wall penetration for the refrigeration lines and water condensate line.
Step 1: Install the Compressor Unit, Connect the Lines and Pull a Vacuum on the Lines.
Connect the vacuum pump via the manifold Gauge to the port of the compressor and open the low pressure Gauge valve. The low pressure hose (blue) goes to the compressor unit. The yellow hose goes to the vacuum pump. A vacuum pull for 30 minutes is needed to evacuate all the water vapor in the copper lines. You will see bubbles in the oil sight glass of the pump and mist briefly from the discharge of the pump.
Step 2: Braze the Mechanical Connections With Solder.
This was done while the vacuum was pulled.
Step 3: Apply Pressure and Make the Electrical Connections.
At this point the valve for the low pressure Guage must be closed. The liquid (thinner) line valve is the first one to be PARTIALLY allowed open using an Allen key. Next is the gas valve to fully open. The manifold Gauge will register pressure. The vacuum pump can be removed.
Carefully and quickly disconnect the manifold from the compressor unit since refrigerant and oil will spurt out. Never remove the manifold without pressure in the lines since you don't want water vapor being sucked back into the lines. Now FULLY Open the liquid line valve.
Make the electrical connections inside and out. This part was the easiest.
Step 4: Power Up and Enjoy,
We powered up the unit and cold air circulated in the room. I took time to watch my brother's aquarium after all that hard work.