Contura Surround C 11 Installation Instruction page 24

GB
60 TOP CONNECTION
For top connection
Check that the measurement between the top and the
chimney mantle is 25-30 mm. Then position the small
insulation plate over the chimney hole in the top and
connect the chimney. The chimney must press the
insulation together approx 5 mm so that it is tight, but
the weight must be on the insert and not the top panel.
If the start pipe has a diameter greater than 150 mm
the hole in the insulation must be cut out to fit.
!
• The joint between the top and the chimney mantel must be
tight to prevent convection air from the surround leaking out
at the change height.
• The weight of the chimney must be on the insert, not the
surrounding.
• If the chimney is designed in another way the seal must be
adapted to it.
Press in the rectangular insulation pieces at the rear edge and
seal carefully to prevent convection air leaking out at the height
extension section.
Cut the large sheet of insulation so that it fits
around the chimney mantle and position it so that it
covers the whole of the top of the surround.