Pretty sure my 78 center kitchen Royale runs both ac from shore power or from genny.....it's got 50a cable hard wired in....which you plug into a
socket on the floor when you want to run from the genny. No change over switch.
Pete.
> Deb,
>
> While,you are rooting around in that box take the time to carefully diagram how your coach is wired. Being a GM finished coach there should be no
> surprises unless a P.O. changed things. Some of the upfitter finished coaches back fed breakers to accomplish a transfer switch function going from
> gen to shore,power. Most GM finished coaches simply had you move the power line from the RV post receptacle to a gen receptacle to do that. Most
> GM finished coaches used 50 amp shore power plugs and wire sizes while many upfitters used 30 amp shore power plugs and wire sizes.
>
> Coachman - Royale and Birchhaven - had 30 amp incoming shore power lines and only allowed the front air conditioner to operate off shore power.
> To run the rear air conditioner you had to run the generator. After 40 plus years of owners, you want to know for sure what you have.
>
> The AC lines running to each Air conditioner should be 12 gage two conductor wire with a ground as the original air conditioners consumed more
> power than most new ones do so needed that 12 ga wire to safely carry the starting amp load. A 12 ga AC line can handle up to 20 amps while a 14 ga
> AC line can only handle 15 amps or less depending on the length of the run and corrosion on connectors along the way. A 10 ga AC line can handle
> up,to,30 amps while an 8 ga AC line is required to handle 50 amps. Note, true marine wire can handle more amps at a given size than their AC line
> cousins noted above, but true marine wire is much more expensive and rarely seen in RVs.
>
> Jerry
> Jerry Work
> The Dovetail Joint
> Fine furniture designed & hand crafted
> in the 1907 former Masonic Temple building
> in historic Kerby, OR
> http://jerrywork.com
> ----------
> Message: 9
> Date: Wed, 20 Jun 2018 18:55:00 -0600
> From: Deb McWade
> To: gmclist
> Subject: Re: [GMCnet] Lost 30A service
> Message-ID:
> Content-Type: text/plain; charset="utf-8"
>
> :uhoh: Oich! OK - smack me and screw my head back on. Put my glasses on (the READING ones) and actually READ the breaker switches - ON is toward
> the
> centre of the box, not toward the bottom.
> So.... flipped the bottom breakers switches UP and guess what!? Everything is fine. :blush: So, Although I DID fry the 50 to 30A dog-bone,
> everything else is fine and runs perfectly on the 50A connector.
>
> I think I'm going to go to bed now and start the day over!
> --
> Deb McWade
> Logan Lake, BC, CAN
> "Li'l Sister"
> '77 Kingsley, 403, EBL EFI;
> TZE167V101404
> It's Bigger on the Inside!
> -------------
> _______________________________________________
> GMCnet mailing list
> Unsubscribe or Change List Options:
> http://list.gmcnet.org/mailman/listinfo/gmclist_list.gmcnet.org
--
Cary, NC
1978 Center Kitchen Royale.
socket on the floor when you want to run from the genny. No change over switch.
Pete.
> Deb,
>
> While,you are rooting around in that box take the time to carefully diagram how your coach is wired. Being a GM finished coach there should be no
> surprises unless a P.O. changed things. Some of the upfitter finished coaches back fed breakers to accomplish a transfer switch function going from
> gen to shore,power. Most GM finished coaches simply had you move the power line from the RV post receptacle to a gen receptacle to do that. Most
> GM finished coaches used 50 amp shore power plugs and wire sizes while many upfitters used 30 amp shore power plugs and wire sizes.
>
> Coachman - Royale and Birchhaven - had 30 amp incoming shore power lines and only allowed the front air conditioner to operate off shore power.
> To run the rear air conditioner you had to run the generator. After 40 plus years of owners, you want to know for sure what you have.
>
> The AC lines running to each Air conditioner should be 12 gage two conductor wire with a ground as the original air conditioners consumed more
> power than most new ones do so needed that 12 ga wire to safely carry the starting amp load. A 12 ga AC line can handle up to 20 amps while a 14 ga
> AC line can only handle 15 amps or less depending on the length of the run and corrosion on connectors along the way. A 10 ga AC line can handle
> up,to,30 amps while an 8 ga AC line is required to handle 50 amps. Note, true marine wire can handle more amps at a given size than their AC line
> cousins noted above, but true marine wire is much more expensive and rarely seen in RVs.
>
> Jerry
> Jerry Work
> The Dovetail Joint
> Fine furniture designed & hand crafted
> in the 1907 former Masonic Temple building
> in historic Kerby, OR
> http://jerrywork.com
> ----------
> Message: 9
> Date: Wed, 20 Jun 2018 18:55:00 -0600
> From: Deb McWade
> To: gmclist
> Subject: Re: [GMCnet] Lost 30A service
> Message-ID:
> Content-Type: text/plain; charset="utf-8"
>
> :uhoh: Oich! OK - smack me and screw my head back on. Put my glasses on (the READING ones) and actually READ the breaker switches - ON is toward
> the
> centre of the box, not toward the bottom.
> So.... flipped the bottom breakers switches UP and guess what!? Everything is fine. :blush: So, Although I DID fry the 50 to 30A dog-bone,
> everything else is fine and runs perfectly on the 50A connector.
>
> I think I'm going to go to bed now and start the day over!
> --
> Deb McWade
> Logan Lake, BC, CAN
> "Li'l Sister"
> '77 Kingsley, 403, EBL EFI;
> TZE167V101404
> It's Bigger on the Inside!
> -------------
> _______________________________________________
> GMCnet mailing list
> Unsubscribe or Change List Options:
> http://list.gmcnet.org/mailman/listinfo/gmclist_list.gmcnet.org
--
Cary, NC
1978 Center Kitchen Royale.
