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Old 02-15-2009, 11:03 AM   #1
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What is this switch called?


Just wondering what is the name of the safety switch that looks like a black eye mounted on the red jb cover mounted near the furnace/boiler called? Does it work off heat or does it actually melt out? Thanks.

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Old 02-15-2009, 11:08 AM   #2
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What is this switch called?


Need to post a pic of it. It may be a heat detector and wired into the fire alarm panel if you have one. They are a warp switch I believe.

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Old 02-15-2009, 11:19 AM   #3
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What is this switch called?


I'll try to get a pic of it. Going out with the family for a little while will try this afternoon.
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Old 02-15-2009, 08:33 PM   #4
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What is this switch called?


Here is a pic of the switch. It says it is a thermal switch so I assume it breaks the contacts when it reaches a set temp.
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Old 02-15-2009, 08:56 PM   #5
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What is this switch called?


Is this a single family residence? Do you have a fire panel? I have seen homes that had tenants and the fire code made them put a panel in with pull stations, heat detectors. When any of them activate it breaks the power to the furnace/boiler.
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Old 02-15-2009, 09:04 PM   #6
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What is this switch called?


This is a single family dwelling and there is no fire panel just one of these by the furnace/boiler the standard emerg switch at the top of the stairs and wired smokes and a few smoke/co detectors throughout.
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Old 02-15-2009, 09:16 PM   #7
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What is this switch called?


Hang in there, we have some electricians on this site. If not you may want to get a local one to look at it. Red plate usually means fire panel/emergency device.
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Old 02-15-2009, 09:24 PM   #8
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What is this switch called?


I know it is an emergency device wired to the boiler. I am just wanting to know what is it called and wanted to know if it melts out and would need to be replaced if there ever was an issue. I know how it is wired in.
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Old 02-15-2009, 09:45 PM   #9
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What is this switch called?


Does it say Firetrol anywhere on it?
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Old 02-15-2009, 09:54 PM   #10
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What is this switch called?


Quote:
Originally Posted by jerryh3 View Post
Does it say Firetrol anywhere on it?
No it doesn't. It does say Inner-Tite Corp
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Old 02-16-2009, 09:54 PM   #11
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What is this switch called?


I got it. It is a fusable link that melts out at 165 degrees. The center just pulls out and has a metal spring like contacts inside.
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Old 02-16-2009, 10:52 PM   #12
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What is this switch called?


Those are generically known in the trade as a Firomatic thermal switch.
In my area, they are used mainly with oil burners in conjunction with Firomatic thermal valves at both the fuel oil tank outlet and oil burner fuel unit inlet.
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Old 02-16-2009, 11:03 PM   #13
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What is this switch called?


Its a thermal cut out, only required for oil fired appliances. Not an electrical code by the way.

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