Aircommand HERON 2.2 Installation Instructions Manual - Page 4
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Set up the paper template on the front panel of the cupboard, and
position it such that:
A. The Facia panel will be centrally located.
B. The right hand edge of the cutout is a minimum of 50 mm
from right hand end of the cupboard. This will ensure that
when the A/H is installed, a minimum space of 25 mm exists
down the side of the A/H, as requested on page 3.
C. The left hand side of the A/H must be a minimum of 110 mm
from the LHS of the cupboard to allow pipes to be
connected. (Refer fig. 9)
D. The bottom of the cutout should be at least 70 mm above the
bottom of cupboard to allow the condensate drain to "fall"
away sufficiently.
I
Fitting of the 2 return air grilles/filters
Provided the cupboard is 525 mm wide or more, the two
grilles can be installed side by side in the underside of the
cupboard. (Refer fig. 10)
In the case of pop top vans, it may be convenient to install one of
the two through the top. Make sure however, that all two are
installed.
Place the grilles as far back as is possible to allow the most direct
route of the air to the fan inlet.
Cut out size for each grille is 158 x 232.
The following describes the procedure for both a cupboard with a
removable front, and a cupboard with a front that is not easily
disassembled. Typically the latter type will have 4 to 5 mm ply
which will need reinforcing around the perimeter of the cutout
and tying to the main structural members of the cupboard assy.
Use adhesive tape to stick down the template. Drill holes at the
corners of the cutout to allow a jig saw to cut out the entire
cutaway.
It is important to cut the hole out accurately.
If the front panel is a solid 19 mm panel, the A/H will not
need additional support. If however the front panel is light
ply, then this must be strengthened after cutting out as per
the template. This framing should be 20 mm thick to provide
the necessary support, and should tie in with the main
cupboard members, to support the weight of the Airhandler.
I
Installation of the refrigeration pipe work and
condensate drain
The 9.5 mm Ø and the 6.4 Ø pipes can enter either side of the
cupboard, and be carefully manipulated to make the connection
to the Airhandler. The 9.5 Ø pipe must be insulated entirely.
The condensate drain is normally run vertically. 12 mm hose or
poly pipe is preferred. An elbow is provided in the installation kit
to change direction from the vertical run to the horizontal to
connect the airhandler. Failure to use this elbow usually results in
a hump in the drain which may impede drainage, or a kink.
Outline of Facia
Return air grilles
Drain hose falls away continuously
4
Cut out along this line accurately
Figure 7
Figure 8
Figure 9
Drain elbow
Figure 10
Figure 11