Connection Of Double Deck Mixing Box; Fresh Air Inlet Hood; Roof Cover - Carrier AiroVision 39 HQ Assembly/Installation, Commissioning, Maintenance Manual

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• Install Z-profiles over the longer base frame profile
of top section as shown in Fig. 42 in this chapter.
Apply roof foil over Z-profiles.
6.4 Connection of Double Deck Mixing
Box
First remove the flanges over top section. Than, pull
flexible connection of lower section upwards. Finally,
connect the flexible connection as shown in Fig. 44.
Fig. 44. Flexible connection of double deck section

7. FRESH AIR INLET HOOD

The fresh air inlet hood may be supplied loose with
the AHU.
In this case the rain hood must be attached in the cor-
rect position as follows:
• Install the inlet hood with the screws supplied in
the correct location.
• The bottom wire grille should then be attached to
the corner post.
Fig. 45. Fresh air inlet hood
Note: The connection between the outdoor air
suction grille and the corner post should be
sealed.

8. ROOF COVER

For multi-section air handling units to be installed
outdoors, after the assembly, connection area should
be covered with special roof cover material supplied
from Alarko Carrier. If the casing section has a flat top
use one of the following two methods.
Method 1
• Shorten the roof cover the correct length. Ensure
that the strip projects enough to attach it to the
side of the roof edge with a blow dryer.
• Ensure that the roof cover already attached to the
two casing sections to be connected is clean and
dust-free.
• Attach the roof cover strip with a blow dryer over
the entire length of the joint up to the roof edge.
• Remove any excess roof membrane up to the un-
derside of the roof edge
.