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Old 06-25-2013, 11:51 AM   #15
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Actually, I should have re-phrased my original question...

For a built-in propane tank system like we have on our B190, is there anything between the on/off valve at the tank that would interrupt the flow of propane to all the appliances (stovetop, frig, water heater)?

Every indication is that the tank is full, but that may be my next checkpoint in absence of other suggestions.
Don't think so. However, since "power on = open" and "power off = closed" there's a possibility that something is interrupting the power to the valve. Fuse, broken wire, etc.
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Old 06-26-2013, 09:09 AM   #16
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For a built-in propane tank system like we have on our B190, is there anything between the on/off valve at the tank that would interrupt the flow of propane to all the appliances (stovetop, frig, water heater)?

Every indication is that the tank is full, but that may be my next checkpoint in absence of other suggestions.
I've never heard of one being set up that way, especially on a B190. Anything is possible, of course.
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Old 06-29-2013, 12:31 PM   #17
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As counter intuitive as this will sound, it turns out that propane based systems need - you guessed it - propane to operate. Problem solved. Duh.
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Old 06-29-2013, 12:51 PM   #18
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Originally Posted by nilesrob
As counter intuitive as this will sound, it turns out that propane based systems need - you guessed it - propane to operate. Problem solved. Duh.
Well, that just makes no sense! ;-)

Seriously though, I thought you said the alarm went off after refilling? How did you refill and have no propane?
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Old 06-29-2013, 01:34 PM   #19
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This is what Airstream has been installing in recent model trailers. Mine is located a few inches off the floor for the reasons previously mentioned. I suspect it is an item that must be included for RVIA Certification. This one is hard wired to the battery, again I suspect this is an RVIA requirement and yes it will drain the batteries if left unattended for a prolonged period. Operating the Store switch does not disconnect the LPG detector.

Like its CO Detecter and Smoke Detector cousins, it has a finite life and needs to be replaced (I don't recall how many years). It also chirps if the battery voltage drops to a certain level. That can be handy if you forgot to switch from Store to Use, or you were unaware that that the converter wasn't charging, but it will most likely alert you to this about 3 AM.
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Old 06-29-2013, 07:54 PM   #20
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Well, that just makes no sense! ;-)

Seriously though, I thought you said the alarm went off after refilling? How did you refill and have no propane?
We filled gasoline, not propane, but it caused the sensor to go off.
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Old 06-30-2013, 07:16 AM   #21
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We filled gasoline, not propane, but it caused the sensor to go off.
Hairspray and some other pressurized aerosols can make it go off, too. Not sure if air freshener sprays will; depends on the propellant used in them.
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Old 06-30-2013, 07:38 AM   #22
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Originally Posted by Silver Goose View Post
This is what Airstream has been installing in recent model trailers. Mine is located a few inches off the floor for the reasons previously mentioned. I suspect it is an item that must be included for RVIA Certification. This one is hard wired to the battery, again I suspect this is an RVIA requirement and yes it will drain the batteries if left unattended for a prolonged period. Operating the Store switch does not disconnect the LPG detector.

Like its CO Detecter and Smoke Detector cousins, it has a finite life and needs to be replaced (I don't recall how many years). It also chirps if the battery voltage drops to a certain level. That can be handy if you forgot to switch from Store to Use, or you were unaware that that the converter wasn't charging, but it will most likely alert you to this about 3 AM.
If it's like the one we bought at the Wally Byam store at Jackson Center, it has a surprisingly powerful "on" indicator light that flashes slowly all the time. It is just bright enough to be disturbing at night if you are a light sleeper and it's in your field of view when you are in your bed.

I will be experimenting with bits of tape to partially hide the light, as I find it annoying at times.
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Old 06-30-2013, 09:02 AM   #23
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On the 2 trailers I have had the propane detector was near the floor on the kitchen cabinets. It cannot be powered off. I removed the fuse on the previous trailer because the detector went bad- beeping all the time. The kill switch on the new trailer does not turn off the propane detector. I need to install another kill switch in the battery compartment near the post/terminal connection.
The propane detector just makes noise so if there is a leak while the trailer is occupied humans and pets can exit and turn of the valve at the propane tank.
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Old 06-30-2013, 09:21 AM   #24
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On the 2 trailers I have had the propane detector was near the floor on the kitchen cabinets. It cannot be powered off. I removed the fuse on the previous trailer because the detector went bad- beeping all the time. The kill switch on the new trailer does not turn off the propane detector. I need to install another kill switch in the battery compartment near the post/terminal connection.
Rather than another kill switch just for the propane detector, why not rewire the propane detector so that it works on your existing kill switch? That way, when you're using the trailer the detector will be on, and when you're not, it will be off. No second switch to forget. Besides, the Atwood ProTechTor LPG detector only draws 10 milliamps; it takes 100 hours for the draw to equal one amp-hour. If your batteries are running down in storage, you may want to look for other parasitic draws before blaming the LPG detector.

Removing the fuse because the detector goes bad isn't a great idea. Better to replace the detector. Propane is not just an explosion hazard. It does nasty things to your lungs, heart, and nervous system when you inhale it, too. OSHA, NIOSH, and AGCIH are all in agreement that the permissible exposure limit is 1000 parts per million. However, the explosive limits are 2.1% to 9.5%, which translates to 2100 ppm to 9500 ppm.

In other words, breathing propane will hurt you long before there's enough of it in the air to catch fire or explode.

According to the owners manual, an Atwood ProTechTor LPG detector will sound an alarm at around 210 ppm, (10% of the Lower Explosive Limit) low enough that you can shut off the propane before it becomes an inhalation hazard OR a fire/explosion hazard.
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Old 06-30-2013, 11:28 AM   #25
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Rather than another kill switch just for the propane detector, why not rewire the propane detector so that it works on your existing kill switch? That way, when you're using the trailer the detector will be on, and when you're not, it will be off. No second switch to forget. Besides, the Atwood ProTechTor LPG detector only draws 10 milliamps; it takes 100 hours for the draw to equal one amp-hour. If your batteries are running down in storage, you may want to look for other parasitic draws before blaming the LPG detector.
(snip)
The propane detector in my new 2014 FC 20' uses 64 mA (actual measurement, done 3 days ago) which is about 1.5 amp hours per day. It will totally kill the two type 24 batteries in about 2 to 3 months of storage since it is not shut down with the storage switch. I added a switch to shut it down when I want to.
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Old 07-01-2013, 03:41 AM   #26
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Rather than another kill switch just for the propane detector, why not rewire the propane detector so that it works on your existing kill switch? That way, when you're using the trailer the detector will be on, and when you're not, it will be off. No second switch to forget. Besides, the Atwood ProTechTor LPG detector only draws 10 milliamps; it takes 100 hours for the draw to equal one amp-hour. If your batteries are running down in storage, you may want to look for other parasitic draws before blaming the LPG detector.

Removing the fuse because the detector goes bad isn't a great idea. Better to replace the detector. Propane is not just an explosion hazard. It does nasty things to your lungs, heart, and nervous system when you inhale it, too. OSHA, NIOSH, and AGCIH are all in agreement that the permissible exposure limit is 1000 parts per million. However, the explosive limits are 2.1% to 9.5%, which translates to 2100 ppm to 9500 ppm.

In other words, breathing propane will hurt you long before there's enough of it in the air to catch fire or explode.

According to the owners manual, an Atwood ProTechTor LPG detector will sound an alarm at around 210 ppm, (10% of the Lower Explosive Limit) low enough that you can shut off the propane before it becomes an inhalation hazard OR a fire/explosion hazard.
Never thought about rewiring. Guess I thought another kill switch would be easier...
I had no choice in pulling the fuse. It beeped constantly beginning on a Saturday of a holiday weekend. I did replace the propane detector- twice. That was on our previous sob trailer- one of the annoyances that eventually led to the purchase of a 'Stream.
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Old 07-04-2013, 03:09 PM   #27
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The propane detector in my new 2014 FC 20' uses 64 mA (actual measurement, done 3 days ago) which is about 1.5 amp hours per day. It will totally kill the two type 24 batteries in about 2 to 3 months of storage since it is not shut down with the storage switch. I added a switch to shut it down when I want to.

I wanted to let everyone know that when I made the measurement I reported above, I mis read my meter scale and was off by a factor of 10.

So, the true measurement was 6.4 mA not 64mA which is much more in line with the other post that said that the propane detector took 10 mA when operating.

I am sorry for the mis information I provided.
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Old 07-07-2013, 04:03 PM   #28
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I don't want to hijack this thread with a related question, but the comments relate closely to the gas detector problem I am having on my 2010 Silver Cloud.

My LP tanks are closed, but the detector flashes green and beeps about every 20 seconds. Is this because my battery is low? I have the disconnect set, but from the comments I have read so far, it seems like it is still using the batteries. Thanks for any help you can provide...

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