| [GMCnet] You can't do Just One Thing [message #284334] |
Sat, 08 August 2015 19:48  |
glwgmc
Messages: 1014
Registered: June 2004
Karma:
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Senior Member |
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Hi Johnny,
Be careful in there. You my already be aware of this but the Onan generator only puts out 120VAC, not 220VAC, and the 50 amp shore power plug is wired to supply 120Vac to two different legs running down each side of your coach. It looks like a 220 plug, but is not so you can’t be sure it was wired to supply 120 VAC - and 120VAC + the way you are used to seeing in your home electrical panel. Ground and neutral are different in an RV than in your home as well. Since yours is a Norris, be sure you understand how they wired the AC side of things in your coach. Would not want to see a fried GMCer in GA (grin).
Jerry
Jerry & Sharon Work
Kerby, OR
glwork@mac.com
http://jerrywork.com
78 Royale with most everything done to modernize a GMC mechanically
77/94 Clasco bone stock and looks like it just left the Clasco facility
Both drive equally as well.
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Message: 9
Date: Sat, 08 Aug 2015 18:13:24 -0600
From: Johnny Bridges
To: gmclist@list.gmcnet.org
Subject: [GMCnet] You can't do Just One Thing
Message-ID:
Content-Type: text/plain; charset="utf-8"
Also called the Law of Unintended Consequences. I finished replacing the burnt switch and wires on the heat pump, and was going to return to the
cheeep genset install when I bumped the cabinet under the sink and everything hiccuped. Inspection showed the 40A breaker in the panel had eaten its
clip which plugs onto the bus in the panel, and was steadily working on toasting the breaker itself. So, I have done the wiring part of the new set
install first. Lowe's has a GE panel which has two buses (240v instead of the Bryant 120) and space four 8 thin breakers for less than 20 bux.
Breakers for it are less than $4 each. After which 10% off for being military. Out came the old panel, the water/A/C select switch, and some
unnecessary jumpers. The new setup will have two feeds, each 120V. When on genset, or shore, 240 would be available but I don't have anything which
needs it. 1 A/c on each leg, water heater on one leg and plugs on the other. Plugs on each side of the coach will now be on a seperate 20A breaker.
The biggest bite of the whole install is likely to be 50 feet of four conductor #6 for the shore feed. I'll also be looking for another 50 of it to
build up as an extention cord. My switching relay is double pole, I'll swap only the hots. It's rated 30A per pole which will work, in that '50 amp'
is actually 2 25s. I think I'll go ahead and hook my PD9160 12 volt supply in at the same time and remove the big brute force supply. I mounted the
GE panel upside down, the wires aren't long enough to make it work right side up.
--johnny
--
'76 23' transmode Norris upfit
Braselton, Ga.
"Sometimes I wonder what tomorrow's gonna bring when I think about my dirty life and times" --Warren Zevon
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Jerry & Sharon Work
78 Royale
Kerby, OR
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