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Tighten the four screws until the thickness of the sponge seal, placed between the frame and the body of the unit, has
been reduced to 4-6 mm and the edge of the frame is substantially in contact with the false ceiling (a gap of under 5
mm):
U
8
C
U = body of the unit, C = frame, 8 = false ceiling
If there is still a gap between the frame and the false ceiling, it should be reduced by working on the brace nuts and
lock nuts again:
If there is still a gap between the frame and the false ceiling, it should
be reduced by working on the brace nuts and lock nuts again:
Replace the grille:
45°
II. 2.3.3 Installing the frame in models HCA1 60 , HCA1/4 60
Remove the covers in place at the four corners of the frame:
Align the frame with the unit and secure it, coupling the four hooks on the frame with the corresponding brackets on
the unit itself. Work on the four hook adjustment screws to secure the frame. If necessary, work on the frame and
adjust it position to centre it perfectly on the unit.
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