Discuss Expansion vessel pre charge in the USA area at PlumbersForums.net
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System or HWC capacity | 7.00 | Litres |
Vessel Capacity | 2.00 | Litres |
Pre Charge Pressure | 3.30 | Bar.G |
Pre Charge Pressure | 4.30 | Bar.A |
Filling/supply Pressure | 3.50 | Bar.G |
Filling Pressure | 4.50 | Bar.A |
Air Space Vol | 1.91 | Litres |
Reserve Water Vol | 0.09 | Litres |
Expansion % | 1.83 | % |
Expansion | 0.13 | Litres |
Water Space Vol | 0.22 | Litres |
Air Space Vol | 1.78 | Litres |
Final Pressure | 4.82 | Bar.A |
Final Pressure | 3.82 | Bar.G |
Thats what's happened yes. So a pressure relief and expansion valve under the sink won't work on this heater?That’s the thing it’s not unvented it’s gravity / equal pressure
the heater isn’t under pressure it’s always open to atmosphere hence when it’s heating the tap will drip most people try and tighten it down more which just breaks them
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