Can anyone ID these electrical components?

Status
Not open for further replies.
Joined
Aug 24, 2008
Messages
351
Location
NJ
I spotted these while leaving our elementary school gym after indoor soccer practice tonight and they piqued my interest, as I've never seen a setup like this. Can anyone tell me what this is for? It appears to all tie back to the sub-panel, but I couldn't trace the lines in the other direction.
 
Joined
May 26, 2003
Messages
9,980
Location
Central Coast, Calif.
Just a guess but some large HVAC systems use air pressure as the signal from the thermostat in the room to the controls. That would explain the tubing and the day/night valves.
 
Joined
Mar 30, 2014
Messages
6,875
Location
NJ
Something tied into the sprinkler system to sound alarm based on drop inn water pressure? That is a strange thing.
 
Joined
Mar 30, 2014
Messages
6,875
Location
NJ
Originally Posted By: tom slick
Just a guess but some large HVAC systems use air pressure as the signal from the thermostat in the room to the controls. That would explain the tubing and the day/night valves.
I like your answer better than mine.
 

Padawan

Thread starter
Joined
Aug 24, 2008
Messages
351
Location
NJ
I forgot to include this photo of one of the cylinders. I tried Googling some of the info stamped on it, but couldn't come up with anything.
 
Joined
Dec 12, 2002
Messages
43,661
Location
'Stralia
Top photo solenoid operated valves. Next two pressure switches Last one solenoid operated valves agin
 
Joined
Oct 25, 2012
Messages
4,823
Location
Taiwan
Originally Posted By: Rick in PA
Originally Posted By: Blkstanger
Here's one for ya.
High voltage relay, possibly a Kilovac brand.
Well, you sound like you know. I guessed an arc light, but I suppose the glass would melt.
 
Joined
Aug 13, 2011
Messages
3,080
Location
Lakeside, CA
Originally Posted By: Rick in PA
Originally Posted By: Blkstanger
Here's one for ya.
High voltage relay, possibly a Kilovac brand.
Vacuum relay is correct. I believe this one is made by ITT. It's a paper weight on my desk at work.
 
Joined
May 2, 2005
Messages
548
Location
Idaho
Originally Posted By: Shannow
Top photo solenoid operated valves. Next two pressure switches Last one solenoid operated valves agin
Yep, common facility HVAC equipment. Used a lot in hydronic systems.
 
Joined
May 6, 2005
Messages
8,869
Location
San Francisco Bay Area
Originally Posted By: Leo99
Originally Posted By: tom slick
Just a guess but some large HVAC systems use air pressure as the signal from the thermostat in the room to the controls. That would explain the tubing and the day/night valves.
I like your answer better than mine.
That's the old Johnson Controls logo. All I could make out from the plate was "V20". I found this listing on eBay: http://www.ebay.ca/itm/Johnson-Controls-Solenoid-Valve-Part-No-V20-6110-/291955433864
 
Status
Not open for further replies.
Top