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Why do we need pressurised systems?

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Toodles
(@toodles)
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Joined: 3 years ago
Posts: 2019
Topic starter  

Having had a second occasion where the system pressure for the heat pump dropped to zero (under investigation at present) I go to wondering:

Why do we need a pressurised system in the first place? I have always assumed that a positive pressure is used to ensure a constant supply of water to the pump(s) thus reducing air bubbles which would be purged from the system during circulation and possibly also to avoid risk of cavitation in the pump impellers.

Have I summed it up correctly or am I nowhere near the truth - is there something else I have not thought of perhaps?

Curious Toodles.

Toodles, he heats his home with cold draughts and cooks his food with magnets.


   
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(@iaack)
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Joined: 2 years ago
Posts: 41
 

A question for Inspector Watson?


   
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Toodles
(@toodles)
Illustrious Member Contributor
Joined: 3 years ago
Posts: 2019
Topic starter  

@iaack I enquired of Wattson and the reply was very much along the lines of that which I surmised Holmes.

Toodles, he heats his home with cold draughts and cooks his food with magnets.


   
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(@iaack)
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Posts: 41
 

@toodles, touché chez. /\


   
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