Megaflo safety cut out - wiring to valve

[Dan Robinson]

Just wire them back together, the micrositches in the zone vavles sort that out.

http://content.honeywell.com/UK/homes/FAQ/wircenop.pdf


Yoiu oculd use one of these and wire the hot water zone valves in to a separate wiring box to common up the connections so that there is a single line going into the wiring centre.

 

[ChrisR]

Nooooo they aren't in the immersion housing - at least not the ones I've seen.
From the man you well:

Whaddaya mean green wire - afaik they're still GREY and orange!

 

[Dan Robinson]

See here:

lovely diagram in the manual.... suprised you missed it Chris

 

[Taylortwocities]

Yes, fine thanks. Sorry I meant Grey, not green.

Last nite I managed to download the manual - there wasnt one on site - typical.

These are indirect cylinders and the immersion & thermal cut are all in one housing. looking at the book it would seem that they are separate in the direct models?

I will use a wiring centre up at the cylinders and run cable back to the programmer.

Think i'll need Perm live, neutral, DHW ON and return back to the boiler&pump (plus earth of course.

So is that right, join both greys and both oranges together so boiler still runs even if one thermal trip has gone? The valve on the cylinder that has tripped will close, of course?

TTC

 

[gas4you]

Yes that seems as though you've got it

 

[Dan Robinson]

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[Taylortwocities]

No guys, thank you very much. I use the diargam for 2 port valve I think, Dan.

Now i can look forward to crawling back and forth in that bl*****y loft space all day tomorrow. Hope wasps are asleep

TTC

 

[ChrisR]

I didn't miss it, it's a standard 2 port splan diagram.
The instruction manual IS on the web site so I assumed you had it.
http://www.heatraesadia.com/HS/Heat...e/36005823 Megaflo HE Issue 4.pdf?OpenElement

These are indirect cylinders and the immersion & thermal cut are all in one housing. looking at the book it would seem that they are separate in the direct models?

The Direct models don't have the Indirect connections!

the immersion & thermal cut are all in one housing

That's the WRONG ONE!