This weekend was a very productive one for me!

On Saturday I ran ducting for the Espar under the main cabin seating on the port side. The duct exits the cockpit locker, snakes down under the galley shelf, and passes through the wall under the galley sink. From there it dives down a few feet and passes through another wall into the space under the seating there. It connects to a Y fitting where the main flow passes through to the vent, and a smaller offshoot will carry air forward into the head and v-berth compartments.

My hole saw was a little too small for the 90mm ducting, so this is how I drilled out bigger holes:
[Linked Image]

Duct passing into the compartment under the galley sink:
[Linked Image]

The run under the sink. This is a very useful space - it also contains the battery charger, audio amplifier, and freshwater demand pump and filter. I've since resected a lot of the wiring and it looks a lot cleaner than this:
[Linked Image]

Sunday I turned my attention back to electrical, and passed an important project milestone.

The old wiring system used a hot wire for every circuit and then a shared common ground. All the wires were bundled together and ran in a loop around the boat - from the panel on starboard aft back to the transom, across the transom and forward along the port side all the way to the v-berth. I wanted independent common and hot wires for each circuit, which makes it much easier to replace wires, add new circuits, etc. I also wanted to avoid the long loop back to the transom, which meant passing several of the wires through the engine compartment. This was a pain, as every time I wanted to run one of these wires I would have to remove the engine cowling.

Yesterday I ran the last of these circuits (chartplotter, instruments, audio, and amplifier on switch). It was a great moment because it meant I could finally bundle up the loose wires I had snaking around the engine and tie them down properly.

First I wrapped them up nice and tight with electrical tape:
[Linked Image]

Then covered them in corrugated conduit (slightly too large for the bundle, but used for chafe protection against the mounts):
[Linked Image]

They're tied down with three wire ties to ensure they don't go anywhere. I'm so happy to get this part of the project done - I only have a few more circuits to run at the panel. The biggest part of the remaining wiring are all the navigation lights. Those run to a waterproof switch panel to be installed in the cockpit, so all navigation lighting can be controlled independently without having to leave the cockpit and find the right switch to set in the dark cabin.

Last edited by alx; 12/16/14 02:39 AM.