Electrofusion Welder
26/07/2011
www.LaboratoryDrainage.co.uk
Pg 21
WELDING UNIT REPAIR INFORMATION
There are no user serviceable parts inside the welding unit. If an internal
fault happens with the unit then it must be returned to Advance Welding
or one of its authorised service agents for repair.
TESTING THE COMPLETED SYSTEM
The completed system should be tested for leaks in accordance with BS
EN 12056-2:2000. An air test should be completed in one operation but
for large multi-storey systems testing in sections may be necessary. Air
should be pumped into the system until a pressure of 38mm water gauge
is obtained and remains constant for a period of no less than 3 minutes
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