Hunter 310 A/C Install

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hdhr289

hdhr289

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Nov 15, 2009
29
Hunter 39 New Castle, NH
I'm planning to install air conditioning this spring on my 1998 Hunter 310. Does anyone have the factory diagram showing the routing of wiring, hoses and ductwork? If so, can you e-mail/fax a copy, please?

In the meantime, for anyone that does have a/c installed on their 310 - can you describe how/where it was installed and what brand/model/size was intended by the factory.

Been trying to reach Hunter Marine but they are apparently backed up with other customer issues.
 
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NOLA_Hunter

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Mar 16, 2010
6
Hunter 320 New Orleans, LA
hdhr289,
I am going to try and attach 3 pages from my Hunter 320 owner's manual that covers the optional A/C unit install. My 2001 Hunter 320 has a lot in common with the 310 which was its predecessor. Also, under the Hunter Owner Modifications section of this site, a gentleman with a 306 (predecessor to the 310) installed a A/C in his boat and he includes a owner's manual drawing for the Hunter 306 install. He does a very good job of photographing and documenting his install.

I am in the process of installing AC on my Hunter. I am installing a 16k unit because I am on the hot, humid Gulf Coast and need the extra BTUs. I believe a 12k is more than enough for a boat in NH and that is the size the 306 used.

My install is hitting issues because the spot that Hunter places the AC in their drawing is a very narrow area (9" width and 14" height) and my unit has a 13" inch base and 13" height. Currently, I will need to install a Isotemp Slimeline round hot water heater to replace my square Seaward heater to free up space for this AC unit. I recommend measuring twice the spot you will install the unit and confirming with multiple sources the unit's dimensions. I could not find even a 12K unit to fit in the location that Hunter shows putting the AC unit. Also, my unit's actual dimensions were larger than the manufacturer states on their down-loadable drawings.

Good luck.
 

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Ken13559

Ken13559

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Oct 29, 2005
2,363
Hunter Marine 326 303 Singapore
Nola, I installed a CruiseAir 12KBTU AC at location between 7 & 8. I fitted a board to raise the floor so that the space is wide enough for the 12K unit. Height is not an issue. Where the AC on dwg, I have a fridge (CU-100).
 
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NOLA_Hunter

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Mar 16, 2010
6
Hunter 320 New Orleans, LA
Ken13559,
Thank you for the information. I was going to attempt fitting the unit in the place you described one last time before moving the hot water heater. I will have to move my fresh water pump to use that spot, but it can move over to the water heater's area. I have the same 12v refrigerator in spot shown on the drawing. On question, the Cruisair unit you installed, does it have a 10.6 in width (27 cm) with the motor raised up and sticking out 4 more inches? I think that may be why I rejected that spot before because I have a 13" in width (34 cm). My unit is a half inch shorter than the Cruise Air (13 in. verse 13.6 in.), so maybe, just maybe I can get her to fit.
 
Ken13559

Ken13559

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Oct 29, 2005
2,363
Hunter Marine 326 303 Singapore
I have to move the water pump some to make room. My CruisAir fits in nicely. The fan duct discharge horizontally towards stern and I place the Y-splitter box in same compartment as the water heater (seat area just ahead of the galley). I've only 2 air outlet, one at side next to microwave oven and another at rear berth. I also cut a rectangle hole next to the CU-100 and fit a louver for cool air to the fridge compressor.
Actually I raise the floor for the fridge only. The CruiseAir sits in nicely with its tray.

Ken
 

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Lee Hadjiosif

Lee Hadjiosif

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Apr 14, 2010
195
Jeanneau 42DS Larnaca Marina
I have the same boat and installed A/C a few years back. The unit goes under the sink! There should be three supply ducts. One runs along the starboard wall behind the drawers and the refrigirator and into the aft berth. Another one under the srarboard setee and into the V-berth. The third goes up and comes out through the box build on the counter to the right of the sink. I used 12K BTU even though the factory used 10K. It was a little tight but it fit fine at the end. Make sure the water intake pump is below the waterline. The most difficult part of the job was drilling the 5" holes for the ducts and also running the power line from the panel under the boards to under the sink. I cut some slots in the doors under the sink for the air return. The factory provided me all the details including duct sizes, runs, and wire gauges, but can't locate them since its been a few years back. Also I found that electric heat works much better than the heat pump if you have the option especially up north and it also works on the hard. Good luck.
 
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