run100
Arizona
Senior Member
Joined: 05/23/2004
View Profile
Good Sam RV Club Member
|
I need to replace the CO/LP detector in our camper. The current unit is a Safe-T-Alert 70-742 and I'm having difficulty narrowing in on the proper replacement.
Have any of you replaced this same detector? If so, can you share the make & model you used?
Thank you!
2012 F350,6.7L Diesel,4x4,CC,SB,SRW
2013 Lance 855S
|
jimh406
Western MT
Senior Member
Joined: 06/11/2006
View Profile
 Offline
|
They seem to have the exact model here. https://www.rvupgradestore.com/Dual-CO-LP-Gas-Alarm-p/66-8836.htm. Fyi, this isn't an endorsement, but at least they seem to be available.
'10 Ford F-450, 6.4, 4.30, 4x4, 14,500 GVWR, '06 Host Rainer 950 DS, Torklift Talon tiedowns, Glow Steps, and Fastguns. Bilstein 4600s, Firestone Bags, Toyo M655 Gs, Curt front hitch, Energy Suspension bump stops.
NRA Life Member, CCA Life Member
|
enblethen
Moses Lake, WA
Senior Member
Joined: 01/05/2005
View Profile
Offline
|
I would replace in kind.
Amazon
Bud
USAF Retired
Pace Arrow
2003 Chev Ice Road Tracker
|
ABC123ABC
BC
New Member
Joined: 02/18/2023
View Profile
Offline
|
We installed a low level CO detector and were surprise to learn the number of time CO is 20-40ppm.
Having a window open for venting condensation then the hot water tank would fire and the CO would be 30ppm for hours. With a campfire and the wind blowing the right direction with the door open the ppm would sit at 20ppm.
https://codetectors.com/co-experts-model-pg-2017-5-ultra-low-level-carbon-monoxide-health-monitor-pg-2017-5/
|
bob213
Fresno, CA
Senior Member
Joined: 12/09/2007
View Profile
Good Sam RV Club Member
Offline
|
I believe that your original "70" series is the only one with a solenoid to cut gas flow. Check to make sure as there could be other series #'s out there that do that as well.
You can avoid reality, but you cannot avoid the consequences of avoiding reality – Ayn Rand
|
|
|
bukhrn
Lanexa, Va
Senior Member
Joined: 03/20/2005
View Profile
Good Sam RV Club Member
Offline
|
I'm confused on how these dual purpose units work, as CO is lighter than air is why my CO detector came mounted near the ceiling in my bedroom, but LP is heavier than air is why my LP detector came mounted near the floor just inside of the entrance door.
How does a dual unit read both, correctly if mounted in one spot.
No need to remind me how smart I'm not, I already know that. ![[emoticon]](https://forums.goodsamclub.com/sharedcontent/cfb/images/wink.gif "wink")
2007 Forester 2941DS
2014 Ford Focus
Zamboni, Long Haired Mini Dachshund
You can have my RV, when you pry my cold dead fingers from the Steering Wheel
|
JimK-NY
NY
Senior Member
Joined: 05/12/2010
View Profile
Good Sam RV Club Member
Offline
|
The issue of placement for detectors seems to be a topic that will not die.
For the most rapid detection of propane, the detector should be mounted low near the floor. Propane is heavier than air and mixes relatively slowly.
CO mixes very rapidly with air and does not stratify like propane does. Hence the detector can in theory be placed at any height including near the floor as in a combination propane/CO detector.
Sadly the EPA bureaucrats made all of this worse. Years ago they decided that the optimum placement for a CO detector was head high, approximately 5' above the floor. This reg seems to have been motivated by the self importance of the EPA rather than based on any science. I do not know if this has been rescinded but they did decide that detectors should be placed in locations as specified by the manufacturer. The last time I checked my paperwork from Kidde they had no recommendation for height of placement. The big concern for either type of detector is to avoid dead spaces such as corners of a room.
|
ABC123ABC
BC
New Member
Joined: 02/18/2023
View Profile
Offline
|
bukhrn wrote:I'm confused on how these dual purpose units work, as CO is lighter than air is why my CO detector came mounted near the ceiling in my bedroom, but LP is heavier than air is why my LP detector came mounted near the floor just inside of the entrance door.
How does a dual unit read both, correctly if mounted in one spot.
No need to remind me how smart I'm not, I already know that.
Best if a dual monitor is mounted close to the floor where propane will accumulate.
CO disperses equally so for that it doesn't matter where the monitor is unless it's a dual CO/smoke alarm.
|
jimh406
Western MT
Senior Member
Joined: 06/11/2006
View Profile
Offline
|
CO is lighter than air, but has to start somewhere. I think the primary source is likely the water heater, fridge, and generator. It's possible that it will come from above.
That being said, My TC has a CO monitor mounted high and propane sensor mounted low. Likewise, my fire alarm is mounted high.
|
run100
Arizona
Senior Member
Joined: 05/23/2004
View Profile
Good Sam RV Club Member
|
bob213 wrote:I believe that your original "70" series is the only one with a solenoid to cut gas flow. Check to make sure as there could be other series #'s out there that do that as well.
I think you're correct. Unfortunately, it looks like the 70 series is unavailable and some of the other series don't have the solenoid.
I got sidetracked yesterday because the truck batteries died. I spent time pulling them and cleaning the trays, connectors, brackets, etc. Repainted some of the parts too.
Also, good discussion on the characteristics of CO and LP.
|
|
|
