RE: Din Mounted Mains Relays for lighting control verses AD10s

[Chris Langridge <chrisl@xxxxxxx>]

Andrew,

 

Thanks for this. I figure the override needs to be achieved by wiring the relays (which are controlled by comfort only) with standard wall mounted rocksers as if they were all 2 way circuits. Does that make sense?

 

chris

-----Original Message-----
From: Andrew Richards [mailto:andrew.richards@xxxxxxx]
Sent: 24 November 2001 20:05
To: ukha_d@xxxxxxxSubject: RE: [ukha_d] Din Mounted Mains Relays for lighting control verses AD10s

Chris

 

I'm about to embark on a large HA project and I'm not touching X10 - just seems too unreliable and expensive (plus I'm on 3-phase).  

 

Like you, I aim to use DIN mounted relays.  But I'm going to switch them using 12v or 24v signals from industrial control cards mounted in a dedicated PC - so not quite your config.  The main problem I can see with your direct switching of the relays (I assume?) is being able to override them >from >

Best regards

Andrew

-----Original Message-----
From: Chris Langridge [mailto:chrisl@xxxxxxx]
Sent: 24 November 2001 18:24
To: 'ukha_d@xxxxxxx'
Subject: [ukha_d] Din Mounted Mains Relays for lighting control verses AD10s

I'm sure this has been discussed before, but I'd apreciate to hear a fresh round of debate on this point. I'm doing a complete rewire on the house - so there's two choices for control of lighting: X-10 or Mains relays. Either way we're gonna use a star pattern as this provides maximum longterm flexibility.

 

I figured LD11's are hard to beat for their versatility, but for switching fluorescents, or applicances why spend £40 on an AD10 when I can have DIN mounted relays for under a tenner? Of course a mains relay like this will need to be CAT fived back to the HA interface, but aren't relays more reliable than X-10 anyway?

 

So here are my three questions:

 

1. All things being equal in a star wiring pattern - would you go for DIN mounted relays or AD10s?

 

2. Are there any obvious gotchas when hooking up manual (rocker type) wall switches for local control if I go for the DIN mounted relay option? Suppose for example I need two way control for the lights on the stairs?

 

3. My consumer unit and DIN rails are all in the boiler room next to all the HVAC stuff. The boiler room is also very well sittuated for running wires almost anywhere. However, Node Zero (Comfort, AV gear, Data Hub, Telephony etc) is in a large cupboard in the centre of the house. Given that I first need to make the choice between AD10's verses DIN mounted mains relays - is there any particular advantage to having Comfort located close to the DIN rails in the boiler room rather than in Node Zero.

 

Thanks for your help

 

Chris

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