2012 R27 Classic - A/C Thru Hull Locations

[mfreeman_1998]

Hello,
I am adding an A/C to a NW Edition Ranger 27 Classic.

Request:
I would like to get information on the following items, in a 2012 or similar R27 Luxury Edition Classic.
1. The location of the thru-hull for incoming sea water, for the water inlet on the A/C unit
2. The location of the water discharge thru hull
3. Does the Condensate Drain go to a sump pump and then to a thru-Hull?
4. The location of the A/C air return grill.
5. The outlet locations for the cool air ducts

So If someone with an LE Edition R27 Classic could share pictures, or information, on these items it would be a big help.

Installation Considerations
- I do trailer the boat, so I know the sea water thru-hull location needs to avoid the bunks on the trailer
- The seawater pump needs to be below the water line so the pump will prime
- The air return grill should be as low as possible and the air outlet grills as high as possible.
- I am going to place the A/C in the foot of the cave, under the microwave.
- Condensate needs to gravity feed to a sump pump or drain
- The discharge thru hull needs to be above the water line

Thanks for your help!

 

[GaylesFaerie]

Hi,

1. Next to the generator thru-hull fitting just to port of the engine ECU on the hull.
2. Thru-hull located on port forward at waterline about even with the glove box.
3. Condensate drains into the bilge through weep holes located throughout the boat.
4. On the front floor wall of the v-berth below the aft end of where the removable forward-most center cushion is in the v-berth.
5. Starboard duct is immediately behind and to the side of the Helm seat against the cabin side wall. The Port side is directly opposite next to the bench seat at the cabin wall.

I'll if I can get you some pictures tomorrow. GF

 

[mfreeman_1998]

Thanks for the A/C info. This is a big help. If you get a chance, I would appreciate pictures of the thru-hull in the engine compartment, the discharge location, and the air vents.

Cheers!

 

[CaspersCruiser]

Thanks for the A/C info. This is a big help. If you get a chance, I would appreciate pictures of the thru-hull in the engine compartment, the discharge location, and the air vents.

I suggest you find a later model R27 and copy the components and installation from that model. In the two 2016 R27 models I’ve seen, the compressor and air handler are installed together under the footwell of the port companion seat. The cold air discharge is co-located there and a second small cold air discharge vents in the cuddy. The volume of cold air delivered to the living spaces is much better than on my 2012 R27.

On my 2012 R27, the compressor is under the footwell and the air handler is in the cuddy. The cold air discharge vent lines leaving the air handler both make an immediate 180° turn, the worst possible installation. The air volume that makes it to the cabin is barely adequate.

 

[knotflying]

As per Casper. The older models have a split system with the coil at the return under the forward center cushion. In my opinion this is an optimal configuration. However as Casper said, I would want the ducts to have less turns and installed to minimize air loss along the way. They now have a unit that has everything together and it is usually located under the port front seat area. I am told that access to the return air filter is basically impossible with this configuration so when doing an install figure in the service needs. On my classic I also had the wabasto, but installed it after the boat was delivered so assuming yours has the wabasto I believe they used the vents on port and starboard for the distribution so those are taken. Real estate for install of the unit is limited as is vent location. Keep in mind that the further supply and return are apart from one another, the better. Cold air sinks so High on the supply and low on the return. I would also put in at least 16k BTU, if not bigger, if it will fit. You have a lot of windows and heat/cooling loss.

 

[GaylesFaerie]

Here are pictures of the AC components in my R27:

Cooling water thru-hull / seacock next to generator seacock on port side of transmission (note the inline filters downstream):
https://photos.app.goo.gl/4Dp7FtMLEHCgTazV9

Seacock location (left arrow) and Dometic water pump (right arrow) downstream from the seacock and filter (top view looking to port):
https://photos.app.goo.gl/2H3CP4VdRmbvfn2c9

Condenser behind port bulkhead panel in v-berth (note cooling water thru-hull exit):
https://photos.app.goo.gl/6gseaxQFB7NCxsPt7

Close up of condenser thru-hull (with port duct behind it):
https://photos.app.goo.gl/62YHrEQdEH9D4jf39

Return grill for evaporator (with 180 deg turns in duct work noted by CaspersCruiser):
https://photos.app.goo.gl/mDWHhJA4RSeMVK3F9

Starboard duct outlet:
https://photos.app.goo.gl/Jk6F8FN4TLZH9QF79

Port duct outlet:
https://photos.app.goo.gl/QnTHJsGHA4aqFT4F8

Hope this helps,

GF

 

[mfreeman_1998]

GF,
Thanks for taking and sharing the pictures of your A/C install. The pictures help tremendously. Especially on the location of the thru-hulls. This info reduces the anxiety about where to put the holes in the hull.....

I'm excited to complete the installation.

Mike