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what does a 3 port motorised valve do ?


 
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jtritton

from United Kingdom

Joined: 27 Jan 2011
Posts: 19
Location: Nottingham,
United Kingdom

PostPosted: Thu Jan 27, 2011 8:27 am Reply with quote

Hi

Hoping you can help, please.
I have just had my old thermostat and programmer replaced with digital ones.

Due to the "wonderful" wiring when my original boiler went in (wire starts off grey in the boiler, ends up blue in the airing cupboard), the plumber can only get the heating to work if the 3 port valve is set to manual permantly.

Not knowing what the 3 port motorised valve does, i wondering if anyone could explain what impact this has please ?

Many thanks
Jason
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twgas

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Location: Kent,
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PostPosted: Thu Jan 27, 2011 8:32 am Reply with quote

the three port valve sends heat to either hot water tank or radiators (or both together) as requested by programmer and/or thermostats.
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jtritton

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Location: Nottingham,
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PostPosted: Thu Jan 27, 2011 8:35 am Reply with quote

thank you.

so leaving it on manual all the time, instead of automatic, what does this do / what impact does this have on the system ?
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twgas

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PostPosted: Thu Jan 27, 2011 8:40 am Reply with quote

You will have the heating AND hot water on whenever either is switched on. The wiring for these is not rocket science, all it needs is a little patience and some testing to find out which wire does what.
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misterdubya

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PostPosted: Thu Jan 27, 2011 9:54 am Reply with quote

Is it a 'Y' Plan, or a 'W' Plan?

You may not be able to have heating and hot water on together.

Mr. W.
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keithsb

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PostPosted: Thu Jan 27, 2011 10:05 am Reply with quote

If you search on the internet for the make and model of valve, you should be able to find the wiring diagram.

Also, if you look at the "similar topics" at the bottom of the page, you should find more help there.
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D_Hailsham

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PostPosted: Thu Jan 27, 2011 5:12 pm Reply with quote

Are there any identifying numbers on the 3-port valve? If so, what are they?
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jtritton

from United Kingdom

Joined: 27 Jan 2011
Posts: 19
Location: Nottingham,
United Kingdom

PostPosted: Thu Jan 27, 2011 7:20 pm Reply with quote

its a Honeywell V4073A 3 Port Motorised Valve, brand new, so the instructions are with it.

i believe its just an issue with the wiring which changes colour in the walls, so doesnt match up at either end icon_sad.gif
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D_Hailsham

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PostPosted: Thu Jan 27, 2011 7:31 pm Reply with quote

jtritton wrote:
its a Honeywell V4073A 3 Port Motorised Valve, brand new, so the instructions are with it.

If you post the make and model of your boiler, I can post a wiring diagram.
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jtritton

from United Kingdom

Joined: 27 Jan 2011
Posts: 19
Location: Nottingham,
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PostPosted: Fri Jan 28, 2011 12:12 pm Reply with quote

wow, thanks icon_biggrin.gif

its a glow worm micron 60ff boiler
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