PVC Door alarm contacts

driverman · Jan 7, 2015

Hi Guys, Burglar alarm question regarding fitting surface door contacts onto PVC doors. I've fitted a few surface standard everyday type contacts on timber doors and PVC doors before. The doors when in the closed position have been flush with the door frame. Therefor,the contacts are side by side with minimal distance between the two. I have a job to do, whereby the door is actually proud of the door frame when closed. It would appear I require something like a deep stand off contact on the door frame to line up with door contact.
Hope makes sense, I'm sure it's an everyday problem for those in the industry. Any pointers please?

telectrix · Jan 7, 2015

what i usually do is fit the magnet to the top of the door, not the vertical, then align the contact to suit. alternative is to stand the contact off the frame on a piece if 16mm mini-trunking.

driverman · Jan 7, 2015

telectrix said:
what i usually do is fit the magnet to the top of the door, not the vertical, then align the contact to suit. alternative is to stand the contact off the frame on a piece if 16mm mini-trunking.

Just been trying to Google other peoples QA. Yes I'm thinking somehow stand it off. I'm thinking that there must be a product on the market for an everyday problem

ifindoubtdont · Jan 7, 2015

As Tel says, fit to top of door, the slight bevel on the door won't make any difference when you fit the other part of the door contact directly above it.

driverman · Jan 7, 2015

Not to long ago, I had some composite doors fitted to front and back. Got Mrs to ask the manufactures (not the installers) if they would drill holes in the frame and door whilst being manufactured for those pencil type door contacts. They said NO! If I was at home I would of said OK, no order for you.
I know it's not a good idea to drill yourself re warranties etc. I've heard of some horrendous stories on here and elsewhere when electricians etc have drilled holes and messed up costing loads of dosh!

shanky887614 · Jan 7, 2015

telectrix said:
what i usually do is fit the magnet to the top of the door, not the vertical, then align the contact to suit. alternative is to stand the contact off the frame on a piece if 16mm mini-trunking.

we do the same as tel, fit to the very top, put some paper between them when you fix the second one so they dont bang against each other

(surely the secure side of the door would be the one that isnt proud usually, thats the case with out door access anyway)

tazz · Jan 7, 2015

The magnet does not have to be side by side with the contact.......fit the magnet on top of the protruding door section, so it is srewed from the top of the door...then fit the contact to the frame were this is screwed on straight on. Hope this makes sense

driverman · Jan 7, 2015

tazz said:
The magnet does not have to be side by side with the contact.......fit the magnet on top of the protruding door section, so it is srewed from the top of the door...then fit the contact to the frame were this is screwed on straight on. Hope this makes sense

errmmm trying to picture what you mean. are we talking about bog standard surface door contacts? Do you mean that the actual door contact fit onto the top of the door ie the narrow part depth of door?

shanky887614 · Jan 7, 2015

driverman said:
errmmm trying to picture what you mean. are we talking about bog standard surface door contacts? Do you mean that the actual door contact fit onto the top of the door ie the narrow part depth of door?

the one with the cable goes on the frame and the one thats just a magnet goes on the door

we are talking normal rectangle door contacts here

driverman · Jan 7, 2015

shanky887614 said:
the one with the cable goes on the frame and the one thats just a magnet goes on the door

we are talking normal rectangle door contacts here

Yes, understand that, that is not a problem. I'll take a contact with me next time on site. Hopefully then I can see what you guys mean re fixings

telectrix · Jan 7, 2015

driverman said:
errmmm trying to picture what you mean. are we talking about bog standard surface door contacts? Do you mean that the actual door contact fit onto the top of the door ie the narrow part depth of door?

fit magnet to the top face of the door, usually 10mm wide, so magnet just fits. if the door opens outwards, you can't use this method. then you'd fit the contact to the bottom horizontal surface of the door frame, as the contact has to be inside the door when closed.

driverman · Jan 7, 2015

telectrix said:
fit magnet to the top face of the door, usually 10mm wide, so magnet just fits. if the door opens outwards, you can't use this method. then you'd fit the contact to the bottom horizontal surface of the door frame, as the contact has to be inside the door when closed.

Good point made there, but yes it opens inwards, so all OK there

Tidy Max · Jan 7, 2015

I had this issue on a rewire a few months ago, i connected my continuity meter up at the alarm panel and tested if the magnet was making contact even though the contacts weren't perfectly level. It did.

The alarms been operational for 6 months and they haven't had any nuisance tripping. Might save you some time and arseing about.

shanky887614 · Jan 7, 2015

Tidy Max said:
I had this issue on a rewire a few months ago, i connected my continuity meter up at the alarm panel and tested if the magnet was making contact even though the contacts weren't perfectly level. It did.

The alarms been operational for 6 months and they haven't had any nuisance tripping. Might save you some time and arseing about.

hold them together in the same position they would be on the door.

if you can feel the magnet pushing/pulling on the other one then it will be fine

telectrix · Jan 7, 2015

thecontact allows a separation distance from magnet of up to 10mm. so a 5mm gap is ideal. going back to OP, fit like this, but with a clearance gap

[ElectriciansForums.net] PVC Door alarm contacts

a picture tells a thousand words, but it can't read!!!

could equally be fitted to side or at bottom of door. whatever makes the aesthetically most pleasing.

PVC Door alarm contacts

driverman

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telectrix

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driverman

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ifindoubtdont

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driverman

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shanky887614

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tazz

driverman

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shanky887614

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driverman

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telectrix

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driverman

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Tidy Max

shanky887614

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telectrix

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