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10-23-2006, 05:56 AM
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#1
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Member
Newmar Owners Club
Join Date: Sep 2002
Location: Des Moines, IA
Posts: 46
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I just picked up my new VTDP on a Spartan MM with Cummins ISC/330 rear radiator. On the top right of the radiator there is a switch labeled "master". Anybody know what this is connected to? I will be putting this unit in storage and am still looking for the chassis battery shut off. Could this be it. I haven't been brave enough yet to just throw it and see what happens...........
__________________
2007 Newmar Ventana 3936
2006 Jeep Grand Cherokee toad
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10-23-2006, 05:56 AM
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#2
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Member
Newmar Owners Club
Join Date: Sep 2002
Location: Des Moines, IA
Posts: 46
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I just picked up my new VTDP on a Spartan MM with Cummins ISC/330 rear radiator. On the top right of the radiator there is a switch labeled "master". Anybody know what this is connected to? I will be putting this unit in storage and am still looking for the chassis battery shut off. Could this be it. I haven't been brave enough yet to just throw it and see what happens...........
__________________
2007 Newmar Ventana 3936
2006 Jeep Grand Cherokee toad
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10-23-2006, 10:26 AM
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#3
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Senior Member
Join Date: Aug 2001
Location: Fort Washington, PA 19034, USA
Posts: 204
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It shuts off power to the engine so it can't be started while someone is working on it.
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10-24-2006, 03:38 AM
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#4
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Senior Member
Join Date: Jul 2006
Location: Mobile, Alabama
Posts: 943
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It also will kill any memory you have set for your radio, etc. Probably not necessary to use when in storage...just kill the house power if you dont need the fridge running
__________________
2006 Mountain Aire 43 and 05 Honda Pilot
Air Force One
3 sugar gliders, long hair daschund and short hair wife for security 
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10-25-2006, 09:52 AM
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#5
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Member
Newmar Owners Club
Join Date: Sep 2002
Location: Des Moines, IA
Posts: 46
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So does that mean that this switch will kill all current coming from the chassis battery, thus preserving it while in storage? My previous coach (Airstream) had two specific battery shut off's; one for the chassis and one for the house. Our new Ventana has only one identified for the house.
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2007 Newmar Ventana 3936
2006 Jeep Grand Cherokee toad
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10-25-2006, 10:09 AM
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#6
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Senior Member
Join Date: Jul 2006
Location: Mobile, Alabama
Posts: 943
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I understand it kills ALL chassis draw
__________________
2006 Mountain Aire 43 and 05 Honda Pilot
Air Force One
3 sugar gliders, long hair daschund and short hair wife for security
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10-26-2006, 02:29 AM
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#7
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Senior Member
Join Date: Aug 2001
Location: Fort Washington, PA 19034, USA
Posts: 204
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I am not sure of that. On my coach I have aseperate switch to kill the chassis and coach batteries. I would do a test before I relied on the switch in the back to kill everything.
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10-26-2006, 01:13 PM
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#8
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Member
Newmar Owners Club
Join Date: Sep 2002
Location: Des Moines, IA
Posts: 46
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Just tested the switch by opening the front door which activates the step and turns on a light underneath. The master switch above the engine does not deactivate these items so I suspect it only cuts off the engine electrical items. I am therefore still searching for a switch which will isolate the chassis battery from any electrical draw regardless of source. Anybody have any other thoughts?
__________________
2007 Newmar Ventana 3936
2006 Jeep Grand Cherokee toad
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10-26-2006, 03:16 PM
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#9
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Senior Member
Join Date: Jul 2006
Location: Mobile, Alabama
Posts: 943
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Right...on mine the steps quit when the house power is killed...it's not on chassis power
__________________
2006 Mountain Aire 43 and 05 Honda Pilot
Air Force One
3 sugar gliders, long hair daschund and short hair wife for security
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10-27-2006, 03:23 AM
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#10
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Senior Member
Join Date: Aug 2001
Location: Fort Washington, PA 19034, USA
Posts: 204
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It woud depend on your coach. I have a main and house battey disconnect switch located on a panel with my tank level guages, jack controls, thermostat, etc.
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10-27-2006, 05:00 AM
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#11
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Member
Newmar Owners Club
Join Date: Sep 2002
Location: Des Moines, IA
Posts: 46
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I forgot to mention that the steps work even when the house batteries are off. That is the same as on my previous coach. The difference here is that there isn't any switch that I have found to turn off the chassis battery. The Spartan manual references disconnecting the black negative cable when putting it in storage. I am wonder whether leaving this off may be one of the corners cut to save $$$ on an "entry level" (right, only 211K MSRP) coach.
__________________
2007 Newmar Ventana 3936
2006 Jeep Grand Cherokee toad
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11-02-2006, 10:25 AM
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#12
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Community Moderator
Nor'easters Club Newmar Owners Club Workhorse Chassis Owner
Join Date: Oct 2004
Location: Salisbury,Ma. 01952
Posts: 13,617
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I have always left battery connected its charged by a solar panel on three of my coaches. 
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