The Electrical Contractor Network

ECN Electrical Forum
Discussion Forums for Electricians, Inspectors and Related Professionals

Books, Tools and Test Equipment for Electrical and Construction Trades

Register Now!

Register Now!

We want your input!

Featured:
   

2017 NEC and Related
2017 NEC
Now Available!

   
Recent Posts
Sprinklered equipment 26-008
by bigpapa
12/02/16 04:24 PM
On Delay Relay with Auto Reset
by Potseal
12/01/16 09:59 AM
Wow, that was close!
by jraef
11/28/16 07:06 PM
Earthquake in New Zeeland
by RODALCO
11/27/16 11:25 PM
Calling all Non-US members!! (Non-US only)
by Tjia1981
11/27/16 06:33 AM
New in the Gallery:
12.5A through 0.75mm˛ flex (just out of curiosity)
Shout Box

Top Posters (30 Days)
gfretwell 14
HotLine1 10
Texas_Ranger 8
Trumpy 8
sparkyinak 7
Who's Online
0 registered (), 211 Guests and 4 Spiders online.
Key: Admin, Global Mod, Mod
Topic Options
Rate This Topic
#40002 - 07/10/04 10:17 AM fire alarm relay for elevator
estman Offline
Junior Member

Registered: 07/06/04
Posts: 3
hello everyone,

I am putting together a fire alarm system.
The panel is an edwards 2414 which is a basic analog one. my question is how I Interface it with the elevator for a recall?
Thanks,
estman

Top
Work Gear for Electricians and the Trades

Work Gear for Electricians and the Trades
Work Gear for Electricians and the Trades
Arc Flash Clothing, Gloves, KneePads, Tool Belts, Pouches, Tool Carriers, etc. etc....

#40003 - 07/10/04 10:34 AM Re: fire alarm relay for elevator
CRM Offline
Member

Registered: 02/29/04
Posts: 73
Loc: Alberta Canada
The fire alarm panel will have a combination NO/NC alarm contacts. I would use the NO contacts and connect these back to the elevator control panel. The elevator company will show you where to wire into their panel. So when there is an alarm a set of contacts will close, operating the elevator recall at the elevator control panel.

Top
#40004 - 07/10/04 12:51 PM Re: fire alarm relay for elevator
Anonymous
Unregistered


Here's another idea.
I would not recall the elevator on general alarm. I would use a relay type base for the smokes in the elevator lobbies. Wire the relays in parallel so that a fire in any lobby but the main entrance lobby sends the car to first floor (primary) and a fire in the main entrance lobby will send the car to a different floor. (alternate) Also if your shunting the power to the elevator machine room with a heat detector just use a two pole heat using one side for fire alarm and the other side for shunt. Is the building sprinked? It will make a difference on the detection you put in the shaft. You may want to read through NFPA 72 3-9.3 (1999) and a call to the elevator inspector might be worth it. Since, in my area anyway each inspector seems to want it set up a little differently.

Top
#40005 - 07/14/04 12:09 AM Re: fire alarm relay for elevator
estman Offline
Junior Member

Registered: 07/06/04
Posts: 3
thank you guys your answers shed light in my questions.

Top



ECN Electrical Forums - sponsored by Electrical Contractor Network - Electrical and Code Related Discussion for Electrical Contractors, Electricians, Inspectors, Instructors, Engineers and other related Professionals