airmaster AM 1000, Руководство по установке

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3.2. Wall Frame and Duct Holes
NB! It is recommended that the duct holes be drilled
10-15 mm larger than indicated on the drawings as
this will allow for subsequent insulation, will prevent
direct contact with the wall, and will allow for a vapour
barrier etc. to be restored.
A rubber diaphragm for restoration of the function
of the vapour barrier is optional available and can be
delivered by Airmaster.
Important! Duct holes in the wall must have an outward
downward gradient of 1-2% to prevent heavy rain
from entering the unit.
NB! The holes for the roof ducts must be made oval to
be able to install the unit. “Appendix 1 Dimensional
drawings”.
NB! We would point out that the wall to which the unit
is fitted must have an even surface. If the surface is
too uneven, fitting of the frame may be out of true.