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Plumbing G3 Unvented Kit
2
Secondary Return
1
Failure to install unvented kit correctly invalidate warranty and does not comply with
Building Regulations.
24
www.bssindustrial.co.uk
1
3
2
All unvented cylinders must have full G3 kit as
supplied with cylinder installed correctly
Inlet Control Group Valve
incoming cold feed within 3m of cylinder
Potable Expansion Vessel
cold feed between Inlet Valve
Tundish
must be fitted on T&P and P relief
3
as shown in this diagram and also reference to
page 43-45 Discharge Arrangement
3
must be fitted on
1
must be fitted on
2
1
and cylinder
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