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10-26-2019, 02:50 PM
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#1
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Rivet Master
2016 28' International
Trois-Rivieres
, Quebec
Join Date: Jun 2018
Posts: 701
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Taking control of the propane detector’s continuous battery drain
Just been through a thorough winterizing process once again, which in my case includes closing the propane tank valves and disconnecting the two regulator hoses.
Having a propane detector which will be continuously draining the batteries 24/7 during the cold, dark and snowy weeks of winter while the Airstream is stored in a secured storage compound where no one could even hear the alarm if for whatever reason it would go off, doesn’t make much sense.
For this purpose I installed a switch in a discrete location, in what we call the “bottle cabinet” situated at floor level right beside the propane detector, under the front L couch (see photos).
I simply removed the 4 screws holding the detector in place, cut the red wire to connect the two ends to the switch wires, and drilled a ½” hole in the thin plywood panel of the bottle cabinet to insert the switch. Works just fine.
I plan to use the switch twice per year, once when winterizing, and once when de-winterinzing. No reason to use it at other times since the solar panels maintain the battery bank at full charge when they are free of snow (in addition to safety considerations when the propane tanks are connected to their hoses and the tank valves are open). In the very unlikely case that the detector was switched off while we were using the AS, we would quickly notice it since the green detector light is in our direct line of sight when we open the door to enter the AS.
Any other ideas about dealing with the propane detector’s continuous battery drain?
__________________
2016 International Signature CCD, RBQ, Dual A/C, 28'
2018 GMC Sierra SLE 2500HD, 4x4, Crew Cab, Duramax Diesel, Leer cap
Lift kit, 16" wheels, Michelin Agilis CC LT
DIY Solar: 500W Renogy panels, AM Solar hdw, Blue Sky MPPT controller, 470ah Rolls battery bank, 2000W Renogy inverter.
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10-26-2019, 03:17 PM
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#2
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Half a Rivet Short
2017 30' Classic
2022 Interstate 24X
Carlisle
, Pennsylvania
Join Date: May 2017
Posts: 15,736
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Hi
Depending on just what options are built into your trailer, there may parasitic loads that are *much* larger than the drain of the propane detector.
Bob
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10-26-2019, 03:31 PM
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#3
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Rivet Master
2012 25' FB International
Trent Woods
, North Carolina
Join Date: May 2013
Posts: 3,120
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I did the same thing, just in a different location.
Larry
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10-26-2019, 04:54 PM
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#4
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Rivet Master
2016 28' International
Trois-Rivieres
, Quebec
Join Date: Jun 2018
Posts: 701
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Quote:
Originally Posted by uncle_bob
Hi
Depending on just what options are built into your trailer, there may parasitic loads that are *much* larger than the drain of the propane detector.
Bob
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Could you elaborate a bit?
Except for the propane detector, when in Store mode, wouldn't the batteries be disconnected from any 12V current draw, parasitic or otherwise?
__________________
2016 International Signature CCD, RBQ, Dual A/C, 28'
2018 GMC Sierra SLE 2500HD, 4x4, Crew Cab, Duramax Diesel, Leer cap
Lift kit, 16" wheels, Michelin Agilis CC LT
DIY Solar: 500W Renogy panels, AM Solar hdw, Blue Sky MPPT controller, 470ah Rolls battery bank, 2000W Renogy inverter.
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10-26-2019, 05:21 PM
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#5
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4 Rivet Member
2004 30' Classic
California
, MD
Join Date: May 2019
Posts: 256
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Not a fan of on/off switches on propane/CO detectors. Just replace mine and the install manual said this was "against code"
Consequences can be too high if you forget to turn on...like death
I would instead install a master cutoff on the battery bank. That removes power from the entire AS.
__________________
2004 30' Airstream Classic
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10-26-2019, 05:28 PM
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#6
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4 Rivet Member
2004 30' Classic
California
, MD
Join Date: May 2019
Posts: 256
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Quoting from the MTI Install manual:
"Connect to wiring or circuit that CANNOT be turned off by a
switch or ground fault protector. Only use UL or recognized
permanent wire connectors. It is acceptable to connect the 70
Series CO / LP gas alarm to the main disconnect. The alarm will be
off along with all other 12 volt equipment when the main disconnect
is turned to the off position. The RV must not be occupied when the
main disconnect is in the off position."
Hence my recommendation of a battery cutoff switch.
__________________
2004 30' Airstream Classic
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10-26-2019, 05:55 PM
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#7
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Rivet Master
2015 27' Flying Cloud
Newberg
, Oregon
Join Date: May 2015
Posts: 1,052
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Quote:
Originally Posted by Hermes
Could you elaborate a bit?
Except for the propane detector, when in Store mode, wouldn't the batteries be disconnected from any 12V current draw, parasitic or otherwise?
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Your subwoofer is always on. Depending on how Airstream decide to wire your trailer the day it was built, your DVD player, your inverter, maybe some other stuff, who knows? My trailer would drain the batteries from 12.9 volts to under 10 volts in less than ten days, with the batteries on store. So now I just disconnect the batteries at the posts, problem solved.
Mike
__________________
2015 27ft FC FB
WBCCI #3960
2019 F150 ecoboost
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10-26-2019, 06:23 PM
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#8
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Rivet Master
2002 30' Classic S/O
Fleming Island
, Florida
Join Date: Nov 2013
Posts: 4,673
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Mine is wired to the trailer side of the battery disconnect switch. This switch is on whenever the trailer is in use so I don’t see a safety issue. With the battery disconnect switch off, nothing works.
Al
__________________
“You cannot reason someone out of a position they have not been reasoned into"
Al, K5TAN and Missy, N4RGO WBCCI 1322
2002 Classic 30 Slideout -S/OS #004
2013 Dodge 2500 Laramie 4x4 Megacab Cummins
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10-26-2019, 09:55 PM
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#9
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Rivet Master
2007 30' Classic
Oswego
, Illinois
Join Date: Jul 2010
Posts: 13,669
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Quote:
Originally Posted by Al and Missy
Mine is wired to the trailer side of the battery disconnect switch. This switch is on whenever the trailer is in use so I don’t see a safety issue. With the battery disconnect switch off, nothing works.
Al
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Ditto
__________________
-Rich-
"If the women don't find you handsome, they should at least find you handy." - Red Green
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10-26-2019, 11:29 PM
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#10
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3 Rivet Member
Seattle
, Washington
Join Date: Aug 2014
Posts: 147
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I moved mine to the other side of the battery disconnect switch. It is relatively easy to do if you have access to the disconnect solenoid.
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10-27-2019, 06:54 AM
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#11
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Rivet Master
2018 27' International
Southeastern MI
, Michigan
Join Date: Aug 2016
Posts: 2,344
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Fire investigators are very good at what they do. I would not have a switch in line with that detector for any reason.
__________________
2018 International Serenity 27' FB
Michelin 16” tires
Hensley Arrow hitch
Tow Vehicle: 2020 F-350 6.7L Diesel
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10-27-2019, 06:55 AM
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#12
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Half a Rivet Short
2017 30' Classic
2022 Interstate 24X
Carlisle
, Pennsylvania
Join Date: May 2017
Posts: 15,736
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Quote:
Originally Posted by Hermes
Could you elaborate a bit?
Except for the propane detector, when in Store mode, wouldn't the batteries be disconnected from any 12V current draw, parasitic or otherwise?
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Hi
Without knowing what is on your trailer it's a bit tough to guess what the other loads are.
If you have the stock inverter, it wires straight to the battery. Reported parasitic currents vary more than a little ( like over a 3:1 range ) so even guessing the current (is it really 1/4 A?) is tough.
Some sub woofers pull current even when the sound system is turned off. Again we start with "do you have one?". Even more than the inverters they vary in terms of current pulled. There *are* multiple models and systems that AS puts into these trailers.
Those are the two "biggies" as reported on most trailers. They each can (and often do) pull more than the propane detector.
Bob
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10-27-2019, 10:22 AM
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#13
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Stay CazuaL
2018 25' Flying Cloud
2014 19' Flying Cloud
Reseda
, California
Join Date: Aug 2014
Posts: 961
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Quote:
Originally Posted by uncle_bob
Hi
Without knowing what is on your trailer it's a bit tough to guess what the other loads are.
If you have the stock inverter, it wires straight to the battery. Reported parasitic currents vary more than a little ( like over a 3:1 range ) so even guessing the current (is it really 1/4 A?) is tough.
Some sub woofers pull current even when the sound system is turned off. Again we start with "do you have one?". Even more than the inverters they vary in terms of current pulled. There *are* multiple models and systems that AS puts into these trailers.
Those are the two "biggies" as reported on most trailers. They each can (and often do) pull more than the propane detector.
Bob
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I concur
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10-27-2019, 11:02 AM
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#14
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Rivet Master
2007 30' Classic
Oswego
, Illinois
Join Date: Jul 2010
Posts: 13,669
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I believe the only residual parasitic drain I have is from a keep alive circuit in my hydraulic brake actuator. It is 150mA...but I really don't want to bypass that one. Someone could hitch up, not knowing the power is shut off and have no brakes.
My solar now is way more than keeping up in storage, so no worries.
__________________
-Rich-
"If the women don't find you handsome, they should at least find you handy." - Red Green
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10-27-2019, 11:04 AM
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#15
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3 Rivet Member
2018 16' Sport
St. Louis
, Missouri
Join Date: May 2019
Posts: 217
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Battery disconnect
We have a Sport 16 with 2 solar panels. If we flip the battery disconnect switch, does this also disconnect the solar controller from topping off the batteries?
From looking at the wiring under the dinette, it appears the solar will still charge the batteries. Looking for confirmation. Thanks.
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10-27-2019, 11:33 AM
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#16
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Rivet Master
1960 28' Ambassador
Vintage Kin Owner
1998 25' Safari
Avonton
, Ontario
Join Date: Sep 2005
Posts: 1,331
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How many years did trailers come without propane detectors, I don't know but it was a lot. I have never heard of it being a problem.
__________________
Doug & Terry
VAC - TAC ON-1
60 Ambassador Int.
1950 Spartan
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10-27-2019, 12:35 PM
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#17
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3 Rivet Member
2020 23' Globetrotter
Savoy
, Texas
Join Date: Apr 2016
Posts: 192
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30 plus years ago my parents were parked next to a rv camper van. The people entered The van, shut the van doors. Then all of the windows blew out. My parents were not hurt. The folks in the van were hurt but survived. They had a propane leak. Probably no propane detector that long ago.
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10-27-2019, 01:28 PM
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#18
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Rivet Master
2007 30' Classic
Oswego
, Illinois
Join Date: Jul 2010
Posts: 13,669
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Quote:
Originally Posted by Shacksman
How many years did trailers come without propane detectors, I don't know but it was a lot. I have never heard of it being a problem.
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Oh, they work very well and are very useful. Anytime my wife sprays hairspray, the propane alarm goes off....and I know she's just about 1/2 beer away from being ready to go.
__________________
-Rich-
"If the women don't find you handsome, they should at least find you handy." - Red Green
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10-27-2019, 01:50 PM
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#19
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Rivet Master
2016 28' International
Trois-Rivieres
, Quebec
Join Date: Jun 2018
Posts: 701
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Quote:
Originally Posted by Al and Missy
Mine is wired to the trailer side of the battery disconnect switch. This switch is on whenever the trailer is in use so I don’t see a safety issue. With the battery disconnect switch off, nothing works.
Al
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Whenever we are connected to shore power, I put the Use/Store switch to Store (off) position, to prevent the converter/charger from charging the battery bank (which is maintained charged by the solar controller).
In this case, the trailer's 12V electrical circuit is fed from the converter. Would the propane detector still be On if it is connected to the trailer side of the Use/Store switch (which would be in the Store position)?
__________________
2016 International Signature CCD, RBQ, Dual A/C, 28'
2018 GMC Sierra SLE 2500HD, 4x4, Crew Cab, Duramax Diesel, Leer cap
Lift kit, 16" wheels, Michelin Agilis CC LT
DIY Solar: 500W Renogy panels, AM Solar hdw, Blue Sky MPPT controller, 470ah Rolls battery bank, 2000W Renogy inverter.
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10-27-2019, 01:53 PM
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#20
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Rivet Master
2007 22' International CCD
Corona
, California
Join Date: Jul 2013
Posts: 9,180
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Taking control of the propane detector’s continuous battery drain
With power to the convertor and the switch in store, the red LED on the use/store panel should be lighted.
This indicates you have 12 volt power on the system, and, on this case, the propane detector would have power and operate correctly.
The green LED on the propane detector should be lighted to indicate it is powered.
__________________
Rich, KE4GNK/AE, Overkill Engineering Dept.
'The Silver HamShack' ('07 International 22FB CCD 75th Anniversary)
Multiple Yaesu Ham Radios inside and many antennae sprouting from roof, ProPride hitch, Prodigy P2 controller.
2012 shortbed CrewMax 4x4 Toyota Tacoma TV with more antennae on it.
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