Does anyone have experience installing a heat detector in a cold environment (~ -40 degrees C or F)?
I'm thinking a rate-of-rise detector would probably be the right type based on what I've read but having problems finding a cut-sheet that supports that operating environment. Normally this type of space would get a dry sprinkler but some things have led to trying to think "outside the box" for this project. Thanks in advance. Sent in anonymously for discussion. Discuss This | Submit Your Question | Subscribe
7 Comments
Justin Harrison
1/13/2021 09:10:17 am
Hey there,
Reply
Alex Jenness
1/13/2021 09:14:18 am
Protectowire has a UL and FM linear heat detector that's rated to -40F. System Sensor has their FAAST remote aspirating smoke detector.
Reply
Glenn Berger
1/13/2021 09:22:36 am
Depending on what the extreme low temperature you need, I belive that Fenwal "Detect-A-Fire" might work.
Reply
Franck
1/13/2021 11:04:07 am
Be careful with detection device (same possible issue with sprinkler heads): if you have some moisture in the air, it may collect at the device location and create an "ice crust" around the device that may prevent its quick and normal operation.
Reply
Chris D.
1/13/2021 12:22:50 pm
If spot is desired, I would suggest the "302" series by Edward. They are non-intelligent and rated down to -40F. Same concerns as raised by others regarding how linear/ASSD type detection would be acceptable (with ASSD be sure to run the pipe in a warm area with condensate consideration.)
Reply
Daniel Garcia
1/13/2021 04:12:25 pm
Just to clarify the temperature is -40 F (worst case). I had Celsius in the question by mistake. Thanks for the suggestions everyone!
Reply
Joe Meyer
1/13/2021 04:16:10 pm
I had to look twice when reviewing the question today... I believe -40 C / - 40 F is where the two temperature scales meet. I learn something new everyday.
Reply
Leave a Reply. |
Free SignupSubscribe and learn something new each day:
CommunityThank You to Our Top
October '20 Contributors!
Your PostThe ToolkitSprinkler Designer or Engineer?
Get all of our tools, including the Sprinkler Database, Friction Loss Calculator, Fire Pump Analyzer and more: Filters
All
Archives
January 2021
Daily
Daily discussions are open-ended fire protection, fire alarm, and life safety questions submitted anonymously for the benefit of sharing expertise and learning from other perspectives. Anyone can submit a question here:
Exam Prep2020 PE Prep Guide
(Available Now!) PE Prep Series
(Available Now!) 2020 PE Prep Series
Current Leaderboard (Click to enlarge) PE Problems
Visit July-October for daily Fire Protection PE Exam sample questions.
Solutions are posted the day after posting. Comment with your solutions, questions or clarifications. Please note that questions posted are unofficial and in accordance with NCEES rules are intended to be similar to actual exam questions, not actual exam questions themselves. |