Home » Public Forums » GMCnet » [GMCnet] House Water Control Switches
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| Re: [GMCnet] House Water Control Switches [message #221010 is a reply to message #220994] |
Tue, 03 September 2013 10:33   |
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Matt Colie
Messages: 8547
Registered: March 2007
Location: S.E. Michigan
Karma: 7
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Senior Member |
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| Peter Garry wrote on Tue, 03 September 2013 09:36 |
For the water pump, how does one wire for a switch?
For the 110V circuit to the water electric water heater I saw on the GMC net a system to limit the time so the electrical element is not left on. Any help here?
Peter Garry
Calgary Alberta
'73 - 23' (once a painted desert)
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Ok Peter..
(Boy, it is great when the sig tells me what I am dealing with.)
(Note the year and model of the coach in the sig.)
Assuming that your coach wiring is still pretty much stock....
With the potable pump, the white wire seems to be attached to the body's aluminum framework close to where the pump lives just aft the potable tank. On my coach there is a single wire from the fuse panel in the electrical locker over the top to the switch by the galley. All that switch has to do is provide the 12V to the pump. That wire seems to run in the bundle that runs under the galley counter and behind the head to get to the potable Pump.
Is that about what you asked? (If no, I will try again.)
The water heater is cute. Originally, it was on the same circuit as the galley and dinette outlets. It is controlled by a switch on the electrical locker. The actually ran a hunk of romex (house wire) back to the electric locker and put a switch there to interrupt the circuit at the water heater. (Talk about S***brain stupid.)
So, if you get a timer switch that can replace a wall switch, it can go in that box in the electrical locker. That would do you, but want to make it way cleaner?
(A lot of this has to be done thought the place where you take out the lower cabinet in the head. But it isn't much work.) Remove the heater from the outlet circuit.
Wire that piece of romex for the switch directly to the heater controls.
Go and get a duplex (two breakers in one case) 1" NEMA breaker to replace the single that currently supplies that circuit.
With the new breaker in the box, connect the outlet circuit to one pole.
You may need another foot or two of 14-2G romex to connect the unused circuit to the switch. Run it into the box where the switch lives. The black should go to the available terminal on your new duplex breaker, the white to the bar where the other whites are tied, and the bare to ground buss with the others like it.
In the waterheater switch box, remove the white from the switch and wire nut it to the new white from the panel. The black from the panel goes to the open terminal on the switch. The bare ground should get put on the same screw as the bare that came in from the heater. This is when you should put in the timer switch if you choose to.
Close it all up.
Now the water heater is on its own circuit. If that breaker is open, there is no way to power the heater. (Open and tag it when you winterize.) There is also no chance that the new microwave will get shut down because the water heater kicked in as they are now on separate circuits.
If you get a 20-20 breaker, make the new romex 12awg.
Matt
Matt & Mary Colie - Chaumière -'73 Glacier 23 - Members GMCMI, GMCGL, GMCES
Electronically Controlled Quiet Engine Cooling Fan with OE Rear Drum Brakes with Applied Control Arms
SE Michigan - Near DTW - Twixt A2 and Detroit
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| Re: [GMCnet] House Water Control Switches [message #221026 is a reply to message #220994] |
Tue, 03 September 2013 12:54 |
George Beckman
Messages: 1085
Registered: October 2008
Location: Colfax, CA
Karma: 11
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Senior Member |
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| Peter Garry wrote on Tue, 03 September 2013 06:36 |
For the water pump, how does one wire for a switch?
For the 110V circuit to the water electric water heater I saw on the GMC net a system to limit the time so the electrical element is not left on. Any help here?
Peter Garry
Calgary Alberta
'73 - 23' (once a painted desert)
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When Randy Van Winkle put a push button with an LED on the wll by our bed, in the bathroom and the kitchen Ruth declared him a hero. Since that time we havent had to fiddle with the old switch. We don't have to turn on the light in the bathroom in the middle of the night because turning on the pump creates a perfect LED glow we have never had to get up to turn off the pump after getting in bed because it just went "bruuup". I have not had to call from the bathroom, "Honey, can you turn on the pump?"
Randy, since them, put together the parts to d this. I think JimK sells them and Randy and Margie have a few and will be at Branson.
The main switch is not a cheap item so I know the kit is not free. On the other hand it comes with concise instructions and all the little connectors,switches and lights. You could easily add another switch somewhere else if you wish.
Ruth says it is one of the best things that have been done to the GMC.
'74 Eleganza, SE, Howell + EBL
Best Wishes,
George
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| Re: [GMCnet] House Water Control Switches [message #221051 is a reply to message #221010] |
Tue, 03 September 2013 16:05 |
rjw
Messages: 697
Registered: September 2005
Karma: 4
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Senior Member |
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[quote title=Matt Colie wrote on Tue, 03 September 2013 11:33]| Peter Garry wrote on Tue, 03 September 2013 09:36 |
The water heater is cute. Originally, it was on the same circuit as the galley and dinette outlets. It is controlled by a switch on the electrical locker. The actually ran a hunk of romex (house wire) back to the electric locker and put a switch there to interrupt the circuit at the water heater. (Talk about S***brain stupid.)
Matt
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interesting how things changed with the model years. My '76 started out with the water heater sharing a breaker with the converter and reefer. Somewhere along the way someone put the water heater on its own circuit. For a long time, up until today, I though they were all that way. A few years ago I added a breaker for an outlet by the kitchen counter to run a cube heater, independent of the outlet i use for my coffee maker or toaster oven. i didn't want to trip the breaker when using a cube heater and making coffee.
I am not sold on having a timer for the water heater. I don't have any problems with leaving it on and thinking about turning it off if connected to 20 amp shore power if i want to run the roof AC. just another layer of complexity IMHO.
Richard
76 Palm Beach
SE Michigan
www.PalmBeachGMC.com
Roller Cam 455, TBI+EBL, 3.42 FD, 4 Bag, Macerator, Lenzi (brakes, vacuum system, front end stuff), Manny Tranny, vacuum step, Tankless + OEM water heaters.
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| Re: [GMCnet] House Water Control Switches [message #221056 is a reply to message #220994] |
Tue, 03 September 2013 16:32 |
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hnielsen2
Messages: 1434
Registered: February 2004
Location: Alpine CA
Karma: 0
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Senior Member |
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On our 74 Canyon Lands same breaker for all 110 outlets on the walls "4" total with off/on switch in the power locker for the water heater.
One outlet behind the couch useless and dangers.
A/C and outlet on ceiling on same breaker.
Question why do you want a timer on the water heater?
Thanks
Howard
All is well with my Lord
Never Give Up
On Sep 3, 2013, at 14:05, RJW <mygmc@palmbeachgmc.com> wrote:
>
>
> [quote title=Matt Colie wrote on Tue, 03 September 2013 11:33]Peter Garry wrote on Tue, 03 September 2013 09:36
>> The water heater is cute. Originally, it was on the same circuit as the galley and dinette outlets. It is controlled by a switch on the electrical locker. The actually ran a hunk of romex (house wire) back to the electric locker and put a switch there to interrupt the circuit at the water heater. (Talk about S***brain stupid.)
>>
>> Matt
>
> interesting how things changed with the model years. My '76 started out with the water heater sharing a breaker with the converter and reefer. Somewhere along the way someone put the water heater on its own circuit. For a long time, up until today, I though they were all that way. A few years ago I added a breaker for an outlet by the kitchen counter to run a cube heater, independent of the outlet i use for my coffee maker or toaster oven. i didn't want to trip the breaker when using a cube heater and making coffee.
>
> I am not sold on having a timer for the water heater. I don't have any problems with leaving it on and thinking about turning it off if connected to 20 amp shore power if i want to run the roof AC. just another layer of complexity IMHO.
> --
> Richard
> 76 Palm Beach
> SE Michigan
> www.PalmBeachGMC.com
>
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