I am replaycing a mechanical timer with a drayton programmer.
so I order the correct one, does a 3 wire or 4 wire instalation refer to how many wires come from the pump.
I can't remember!

A programmer and a timer are Different.

Best to post all the details about the boiler and controls plus what you intend to replace them with.

Makes and models please.

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Avoid Drayton controls.

Go for Honeywell

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Dave

www.drlgas.co.uk

Perhaps I discribed it incorrectly as a timer, I am replacing a danfloss unit, the type with a dial that you turn to set the time and lugs that turns the heating on and off.
I fitted a drayton programmer on my daughters has c/h and it has been fine, so I've already bought one for my heating.
I have a boiler, h/w tank, 2 motorised valves, danfloss 4 wires pump.
I know I will have to fit a junction box.

But does the boiler, motorized valves and pump have a make/model.

Can you also explain a 4 wire pump, far as I know they don't make one for the domestic market.

Every boiler, programmer, timer etc is different, therefore the information requested is a must have.

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sorry scruff
I was getting mixed up with my daughters system :oops
Boiler is a stelrad ideal classic, 1 honeywell sundial 3 position diverter motorised valve (4 wires), wilo pump gold?(3 wires) and the danfloss 102 mechanical programmer.

Do you have a room thermostat and a thermostat on the side of your HW cylinder?

Which model no is the diverter valve - V4073 or V4044?

I have a basic honeywell tank and room stat (can't see a model or number)20years old.

I can't see a number on the motorised valve
the label on it says sundial system Y 3 position diverter valve

Guess who's making hard work of this

What is the model of the new Drayton programmer.

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Been like this since I had a stroke.
The programmer I want to put on is a Drayton MK4 LP112

I have added the corresponding Drayton terminals to the Danfoss.

6 - L
5 - N
1 - 3
2 - 4

you don't need any link wires.

Set the programmer to fully pumped.

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Thanks Scruff I'll give it a go

On the Drayton programmer there are 6 terminals L and N. I cannot find a diagram that shows where the 4 corresponding wires go from the programmer to the numbered terminals in the junction box

Are you moving the old Danfoss then.

I marked the Drayton terminals on the drawing.

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