• Link the sections by connecting the pre-mounted
corner posts with bolts and nuts (M6).
Fig. 22 - Connecting the corner posts
•
If there are more than two sections, repeat the
procedure above. For an outdoor installation all
external joints should be sealed.
For an outdoor installation the plastic roof cover must
be finished as described in chapter 7.
NOTE: If the AHU needs to comply with air tightness
class L1 (LuKa C), the internal connection strip joints
and/or profiles should also be sealed.
4.3 - Connecting casings of differing height
Fig. 23 - Unit of differing height
After the internal connection of the sections an indoor
installation requires no further finish (see chapter 4.2).
For the external finish of an outdoor installation use one
of the following methods:
Method 1
•
Check if the cover strip has been applied at the
correct height on the projecting section.
•
Fix the plastic finish layer to cover strip above
with the screws provided.
•
Add a second cover strip over these screws.
•
Position the sections against each other so that the
corner posts of both casings are touching and first
connect the sections internally, as described in
chapter 4.2.
•
Attach the projecting strip of the plastic roof foil
over the connection profile of the lower casing
section with a blow dryer.
Fig. 24 - Roof finish, units of differing height - 1
NOTE: All resulting external joints should be sealed.
Method 2
•
Check that the cover strip and the protection
profile are mounted at the correct height of the
projecting casing section.
•
Apply the sealing tape supplied to the connection
profile of the lower casing section.
•
Position the lower section with the pre-mounted
connection profile against the projecting section so
that the corner posts of both sections touch, and
connect the sections first internally, as described in
paragraph 4.2.
•
Screw down the connection profile of the lower
section to the cover strip, and remove any drill
shavings.
Fig. 25 - Roof finish, units of differing height - 2
NOTE: All resulting external joints should be sealed.
50 mm
8 mm
10 mm
8 |
HHFlex Air Handling Units
