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02-08-2020, 01:10 PM
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#1
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Member
Join Date: Oct 2016
Location: Aurora, CO
Posts: 69
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Propane detector wiring
I am replacing the expired CCI Controls LP Gas Leak Detector (model 7773.0) in my '03 Fleetwood Revolution. Seems like most popular replacement is Safe-T-Alert model 30-442-P.
The Safe-T-Alert has 2 wires (12V pos & neg). The CCI has three (two 12V pos & one neg).
Where do the two Fleetwood positive wires come from? Can I connect them together with the single positive on the Safe-T-Alert? If I should use only one positive, does it matter which one is used and cap off the other?
Tried finding an answer among previous posts, but no luck. Thanks for the help.
Mark
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02-08-2020, 01:25 PM
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#2
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Senior Member
Join Date: Jun 2012
Location: The Bluegrass State
Posts: 8,889
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Quote:
Originally Posted by datsun78
I am replacing the expired CCI Controls LP Gas Leak Detector (model 7773.0) in my '03 Fleetwood Revolution. Seems like most popular replacement is Safe-T-Alert model 30-442-P.
The Safe-T-Alert has 2 wires (12V pos & neg). The CCI has three (two 12V pos & one neg).
Where do the two Fleetwood positive wires come from? Can I connect them together with the single positive on the Safe-T-Alert? If I should use only one positive, does it matter which one is used and cap off the other?
Tried finding an answer among previous posts, but no luck. Thanks for the help.
Mark
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Hi Mark, is this the first time you have replaced the detector?
When I replaced mine, I cut one of the red wires and used the other one. On my coach, one red wire goes to the starting batteries, and the other red wire goes to the house batteries. You really only need one supply so pick one.
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Good Luck, Be Safe and Above All, Don't Forget To Have Fun
Pete
Central Kentucky
2006 Fleetwood Discovery 35H, 2014 Honda CR-V, M&G Engineering Braking System
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02-10-2020, 07:35 AM
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#3
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Senior Member
Join Date: Aug 2016
Posts: 3,400
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When I replaced ours, here's how I wired it up.
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02-10-2020, 10:57 AM
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#4
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Moderator Emeritus
Join Date: Jan 2000
Location: West Palm Beach, FL. USA
Posts: 27,671
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Don't splice the two red wire sources together - you will be permanently tying the house and chassis systems together and defeating the designed-in isolation hardware. Do it the way Bigd9 suggests, using one wire only. Use the chassis battery wire if you want the detector to work while the house battery disconnect is off.
The CCI detector maintained the isolation inside the box, but the SafeTAlert has no such function and only uses one hot wire.
__________________
Gary Brinck
Former owner of 2004 American Tradition and several other RVs
Home is West Palm Beach, FL
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02-10-2020, 03:33 PM
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#5
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Senior Member
Join Date: Mar 2019
Location: Braidwood Il.
Posts: 8,300
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You could maintain isolation with a pair of axial diodes one at each pos wires. I'm pretty sure 10 amp would be fine and it's wires would be heavier not act as a fusible link in a short event .You would want to solder inline with the wire and heat shrink or tape , to mitigate stress hanging/pulling on diode body or it's wires .
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95 Monaco Crown Royale
M11 400hp, 4060 trans.
Aquahot, Generac Guardian7.5k
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02-20-2020, 11:16 AM
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#6
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Senior Member/RVM #90
Monaco Owners Club
Join Date: Nov 2002
Location: Columbus, MS
Posts: 54,758
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Quote:
Originally Posted by Gary RVRoamer
Don't splice the two red wire sources together - you will be permanently tying the house and chassis systems together and defeating the designed-in isolation hardware. Do it the way Bigd9 suggests, using one wire only. Use the chassis battery wire if you want the detector to work while the house battery disconnect is off.
The CCI detector maintained the isolation inside the box, but the SafeTAlert has no such function and only uses one hot wire.
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Good advice!
__________________
Joe & Annette
Sometimes I sits and thinks, sometimes I just sits.....
2002 Monaco Windsor 40PBT, 2013 Honda CRV AWD
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02-20-2020, 08:49 PM
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#7
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Senior Member
Fleetwood Owners Club Freightliner Owners Club
Join Date: Nov 2010
Location: Texas
Posts: 4,283
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I just replaced my detector. Both red wires were tied together from the factory, but that maybe not right.
I'm going to test which red wire is from the house batteries and only use it.
__________________
Full Timers.
2015 Fleetwood Discovery 40E on a Freightliner XCS chassis with a Cummins ISL9 pulling 1 and/or 2 motorcycles, '07 Honda Accord OR a 17' Runabout Boat.
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02-26-2020, 04:55 PM
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#8
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Senior Member
Gulf Streamers Club
Join Date: Jan 2009
Location: Charlevoix, Michigan
Posts: 611
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I believe that negative wire goes to the propane shut off solenoid and the new detector will not activate the solenoid. You will need to remove the solenoid and either tie the two solenoid wires together to ground the new detector or just run a new negative lead to the new detector. The solenoid is no longer required so can be plumbed out of the system.
__________________
GSMC(SW) U.S. Navy (RETIRED) 1967-10-03 to 1993-11-01
1995 Gulf Stream Scenic Cruiser on Spartan EC-2242 Chassis, Cummins B5.9, Allison MD3060, TST 507 , Toad: 2019 Jeep Cherokee Trailhawk Elite W/Roadmaster tow setup
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