Need Help with Hot water System


  #1  
Old 01-27-05, 08:36 AM
H
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Need Help with Hot water System

I am not sure the valve name, but I think it is called the fill valve. It is the valve that lets new house water into the system. Should this valve be open or closed once the system is working and ready to run?
Thanks,
 
  #2  
Old 01-27-05, 12:46 PM
RBean
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Industry wide debate

Get 10 contractors in a room to discuss this and a brawl will break out.

It becomes an issue of safety.

Turn the valve off and if a leak should occur its possible to dry fire or fire the boiler under low pressure...both bad situations.

Fill a hot boiler that's been running with low or no water with cold water and you have a thermal bomb.

Leave the valve open and if you have a leak then you 'feed' the leak until its repaired.

Constant make up water leads to air related problems such as noise and corrosion.

My system has a low water cutoff and a low pressure alarm...we leave the valve closed...if we didn't have the safety switches I would probably put on a water meter on the fill line and monitor consumption.

I'm not big into having bombs in my basement so worse case scenario for me would be to leave it open...

But wait a few minutes and someone else will post a different response!

So goes the business of hydronics.

(A low water cut off is a must in my books)
 
  #3  
Old 01-27-05, 12:58 PM
H
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Great thanks. I would rather be safe.
 
 

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