Nap sounds good. But first I'll explain more Ole Thom. A tube in tube heat
exchanger replaced the air cooled condenser. In this device, hot refrigerant
vapor passes through a 5/16" O.D. tube, which has been sealed inside a 7/8"
O.D. tube. At both ends of the 7/8" tubing, access fittings were installed
to allow fresh water to flow through the 7/8" and outside the 5/16" tubing.
In doing so, picks up the heat for removal from the cabin. The refrigerant
compressor is the 2nd pump you seek. It moves the refrigerant through the
5/16". It leaves the compressor as a hot vapor and arrives at the expansion
device (capillary tube) as a sub-cooled, high pressure liquid.
A water pump moves the cool fresh water from the tube-in-tube condenser,
through hoses, to the 2nd heat exchanger, which is just a roll of 5/8" O.D.
copper tubing, which is dropped into the bay when the AC is used.
Otherwise, this 2nd heat exchanger is stored neatly away in a locker (the
22' of 5/8" tubing was shaped to fit in the locker). There is no condenser
fan needed, nor is there a need for the old air cooled condensing coil, so I
removed them. The indoor fan continues to work in the usual way, drawing
warm air through the evaporator where it is cooled and discharged through
the louvers.
Scout

"Thomas Stewart" wrote:
You leave a lot of questions.