Heating control system

[David937]

Hello,

After reading the advise of others in my previous thread I decided to rewire my controls using standard controls.

My current heating control system has a VRT360F and a Salus programmable stat, this control system is not compatible.

The proposed new control system is as follows:

Honeywell CM927 RF to control downstairs via 2 port valve, this is a replacement for the VRT360F.

Existing Salus control to be kept and used to control attic via 2 port valve.


AIUI these are standard controls and I will be able to have any of the zones on at any time and have both on at the same time.

 

[David937]

Whoops!
I forget to ask if this setup will actually work.

Will this setup work (Running any one zone or both at the same time)?

 

[gas4you]

As long as you take out the VR65 and wire everything as an S plan it should function ok.

 

[David937]

This system does not have a VR65; it is a Vaillant ecoTEC+ 937, very pleased with the boiler BTW especially the DHW performance and low noise and not to mention the slick backlit display.

 

[gas4you]

Sorry, must be getting confused with another thread

Yes this should work, just wire as a normal S plan with a wiring center. The orange valve wires will end up being connected to terminal 4 on the Vaillant pcb.

 

[David937]

That's strange the valves on my system have black wires, I suppose you must be referring to another manufacturer. My valves are Honeywell. Do you reckon the electrician of the installer will know about the adjustment on PCB?

 

[gas4you]

Are they really old Honeywells? All the Honeywell 2 port valves I have ever fitted or worked on have grey, brown, blue, orange and earth wires

 

[David937]

I have just been to check and I can confirm that there is a single black wire from each valve. The valve head is silver and is made in Canada.

 

[David937]

It is a lot like this one:

//www.diynot.com/forums/posting.php?mode=reply&t=152196[/img]

 

[David937]

Oh dear wrong link

//www.diynot.com/forums/posting.php?mode=reply&t=152196

 

[David937]

What is going on? Sorry about that.


http://www-2.plumbworld.co.uk/honeywell-v4043h-2-port-zone-763-1366s.jpg

Hope that's the right link.

 

[gas4you]

Are you talking about the black wire that is the diameter of a pencil?

I am talking about the wires inside of this black sleeve

 

[David937]

Yes that's right, a quick check inside the black sleeve reveals wires of all the colors you mentioned above

The person that advised me from the company I got to do the heating came today and checked everything, a roof tile that was damaged when installing the flue is going to be replaced, and all zoning problems are to be fixed. A Honeywell CM927 is going to be installed.

 

[spacethegas]