Ok, a few more photos
the relay box. This takes 120 volt Ac and switches 12 volt DC to run the sea water pump.
the pump I use is a 12 volt DC cheap
centrifugal bait pump. It pumps over 5 gallons per minute which I verified. This Attwood pump is a 750gph and runs so quiet you can not hear it running.
the condensing unit fitted with 3/4 inch hose. They snug up tight when pushed this far up the tubing. I have double insulated the suction tubing, insulation on top of insulation every where. So two layers thick.
showing the tight fit of gen and cruisair.
showing my insulating piece of polyiso foam 2 inches thick foil faced. I tested when running and you can feel gen heat on gen side, other side stays cool. Bought this board at HD. Used aluminum
duct tape to join the layers together.
main cooler in salon
. Has the 3 knob rotary control and a loud fan.
Is there a way to make this fan quiet like the other fan?
slave unit in lower cabin. Very quiet fan.
showing backside of slave unit
Here i am covering the copper tubes in lower bilge
These lines run to the lower cabin slave cooler evaporator.
These were installed in 1971 and had some corrosion
on the copper. I cleaned this off. I am wrapping fiberglass
wall board tape around the tubing. This has a sticky side so stays in place. Then I coat with PL premium polyurethane to seal. The tape bulks up the glue. This will be 100% waterproof and still quite flexible unlike If I had used epoxy
Suction line is 3/8. Discharge line is 1/4.
Condensing unit is 16000 btu which calls for a 1/2 suction line. But the original install used 3/8?? Who knows what they did. I had to solder a piece of 1/2 to 3/8 when attaching the flare to the condensor. Some ape had managed to create a huge flare for the 3/8 tube which after a few decades cracked on me.
I figure realy it should be 1/2 inch suction at least to the first 'tee' where it divides to both coolers. Is there any penalty to using this 3/8 line??
I figure 3/8 after the 'tee' off split is ok.
hard to see but the glue is smeared on. I put tape on, smeared on glue, then did another layer and smeared on more glue.