Pro Combi Boiler Advice


Postby tomonl » Tue Nov 01, 2011 12:27 pm

Hi

Im currently having a central heating system installed in my house and the Pro combi boiler was installed yesterday.

The boiler has 6 input/outputs on the bottom and as im abit of a worrier (especially when it comes to gas and electrics) i was just wondering what these are for. When i asked my installer he just told me they were, gas, cold water in, hot water out and the flow and return for the central heating. Yet there is a 6th valve that he didnt explain. As all pipeworks currently exposed i wouldnt mind checking it before my installer comes back on thursday just for piece of mind.

Im sure its all fine and safe but as i said i worry about these things!

thanks for any help.
tomonl
Posts: 3
Joined: Tue Nov 01, 2011 12:17 pm

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Postby plumbbob » Tue Nov 01, 2011 4:01 pm

I am sure you don't need to worry about this as your installer will be well aware of which pipe is which and what they do. He wouldn't be Gas Safe registered if he didn't.

In fact there are seven connections to the boiler not six. Apart from the five you have mentioned, there is a connection to a safety relief valve which is to vent excess pressure should the boiler develop a fault.

The final connection is a white plastic pipe to drain any condensation which forms in the heat exchanger and flue.
plumbbob
Posts: 1854
Joined: Wed May 07, 2008 9:59 pm


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