Reply
 
Thread Tools Display Modes
 
Old 01-22-2015, 09:25 AM   #1
Veteran Member
 
JESSEDIVER49's Avatar
 
City: Houston
Country: USA
Vessel Name: Good Vibrations
Vessel Model: Grand Banks Classic 42
Join Date: May 2013
Posts: 90
Electrical Diagram for GB 42?

I have a 1986 GB 42. Can anyone tell me where I can get an electrical diagram for this boat? I don't see one on the GB Owners website. I have a 8.5 KW Phasor Generator and I'm considering adding an electric driven scuba compressor. An electrical schematic would be very helpful to have. Probably have to run a new line from supply bus but I'd like to know the capacity of the line that runs to master stateroom closet.
__________________
Advertisement

JESSEDIVER49 is offline   Reply With Quote
Old 01-22-2015, 10:47 AM   #2
Guru
 
Capt.Bill11's Avatar
 
City: Sarasota/Ft. Lauderdale
Country: USA
Join Date: Apr 2014
Posts: 5,422
What size are the wires going to the closet?

I doubt they are big enough to handle the load of a compressor. That said, what is the recommended size of the breaker for the compressor?
__________________

Capt.Bill11 is offline   Reply With Quote
Old 01-22-2015, 11:04 AM   #3
Veteran Member
 
JESSEDIVER49's Avatar
 
City: Houston
Country: USA
Vessel Name: Good Vibrations
Vessel Model: Grand Banks Classic 42
Join Date: May 2013
Posts: 90
GB Wire diagram

Will need to check wire size/capacity of cable to the closet.

I'm looking at a 3 HP (2.2 KW) high pressure air compressor to fit in lazarette. I'd guess breaker would be around 2.5-3 kw.
JESSEDIVER49 is offline   Reply With Quote
Old 01-22-2015, 02:42 PM   #4
Guru
 
Capt.Bill11's Avatar
 
City: Sarasota/Ft. Lauderdale
Country: USA
Join Date: Apr 2014
Posts: 5,422
120v or 240v?

If it's 120v you're going to need a 35-40 amp breaker I'm guessing. I seriously doubt the existing wiring will handle that.
Capt.Bill11 is offline   Reply With Quote
Old 01-22-2015, 02:58 PM   #5
Senior Member
 
obthomas's Avatar
 
City: Seabrook Texas
Country: USA
Vessel Name: TheVenture
Vessel Model: 1985 Bestway Labelle Sundeck 40ft
Join Date: May 2013
Posts: 462
About 25 amp 120VAC single phase; 15 amp 240VAC split phase. Good luck, get some help.
obthomas is offline   Reply With Quote
Old 01-22-2015, 03:10 PM   #6
Veteran Member
 
JESSEDIVER49's Avatar
 
City: Houston
Country: USA
Vessel Name: Good Vibrations
Vessel Model: Grand Banks Classic 42
Join Date: May 2013
Posts: 90
Thanks!
JESSEDIVER49 is offline   Reply With Quote
Old 01-22-2015, 05:04 PM   #7
Guru
 
Capt.Bill11's Avatar
 
City: Sarasota/Ft. Lauderdale
Country: USA
Join Date: Apr 2014
Posts: 5,422
Actually I may have underestimated the size of the breaker you may need.

http://www.groverelectric.com/howto/...c%20Motors.pdf
Capt.Bill11 is offline   Reply With Quote
Old 01-22-2015, 07:01 PM   #8
Scraping Paint
 
City: -
Country: -
Join Date: Oct 2007
Posts: 13,748
Quote:
Originally Posted by JESSEDIVER49 View Post
I have a 1986 GB 42. Can anyone tell me where I can get an electrical diagram for this boat? I don't see one on the GB Owners website.
There are owner manuals for four GB42s in the Manuals section of the GB owners website Grand Banks Owner's Resources. They are for GB42-488, GB42-682, GB42-966, and GB42-1461. Like all GB owner manuals, they should all have AC and DC electrical schematics in them. The only one I looked at to make sure the manual is like ours from 1973 and has the schematics is GB42-966, but I assume the others have the same thing.
Marin is offline   Reply With Quote
Old 01-22-2015, 07:38 PM   #9
Guru
 
psneeld's Avatar
 
City: Avalon, NJ
Country: USA
Vessel Name: Freedom
Vessel Model: Albin 40
Join Date: Oct 2011
Posts: 15,928
The PO of my Albin taught SCUBA IN the Bahamas every year.

He had an o board compressor and ran a separate 30 Amp circuit to a plug he left under the step to go outside. I use that circuit now to run 2 space heaters.

Can't say what size compressor...but I would do the same and run a separate circuit because I doubt any existing circuit you have would handle it....

Sorry I can't help with a diagram but a peek behind your AC panel at breaker size should give you a hint.
psneeld is online now   Reply With Quote
Old 01-22-2015, 11:43 PM   #10
Guru
 
JDCAVE's Avatar
 
City: Lions Bay, BC
Country: Canada
Vessel Name: Phoenix Hunter
Vessel Model: Kadey Krogen 42 (1985)
Join Date: Apr 2011
Posts: 1,614
I know that James Hamilton has a compressor on his boat, Dirona. He's quite approachable and may be able to provide advice. He responds to emails can can be contacted through his blog on the right hand menu.

http://blog.mvdirona.com


Jim
Sent from my iPad using Trawler Forum
__________________

JDCAVE is offline   Reply With Quote
Reply

Thread Tools
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are Off
Pingbacks are Off
Refbacks are Off





All times are GMT -5. The time now is 09:57 PM.


Powered by vBulletin® Version 3.8.8 Beta 4
Copyright ©2000 - 2017, vBulletin Solutions, Inc.
Search Engine Optimization by vBSEO 3.6.0
Copyright 2006 - 2012