Aircommand IBIS - Assessing Roof Thickness and Duct Length; Assembling the Duct Work

6. ASSESS ROOF THICKNESS
- Measure the roof thickness and
consult the table across to check
if adjustments to the hold down
bolt and duct length are
required.
- NOTE if the duct length needs
to be adjusted then cut the
excess from the un-notched end.
Failure to properly alter
the hold down bolt size
as required can lead to
the evaporater tray being
punctured during the
installation procedure
Roof thickness (mm)
Include ‘H’ frame if used
Duct length required
(mm)
Hold down bolt length
required (mm)
125
150 (as supplied)
As supplied
100
125 (cut 25)
As supplied
80
105 (cut 45)
As supplied
60
85 (cut 65)
Cut 50
40
65 (cut 85)
Cut 70
25 (absolute minimum)
50 (cut 100)
Cut 85
7. ASSEMBLE DUCT
- Thread a hold down bar onto
the M8 bolt and push the bolt
almost all the way into the hole
in each corner of the brace
(Fig 10)
- Leave a 10mm gap between the
hold down bar and the recess in
the plastic brace. This will allow
for easier engagement with the
four corresponding threaded
holes in the unit.
- Turn the assembly over and add
the black plastic duct work to the
top of the assembly with the
notch upwards (Fig 11). The
notch is shown circled below.
- Align the notch with the inside
fans power cable.
When attaching the
duct to the unit take
care to ensure it forms
a tight, unbroken seal that
doesn’t allow cold air to escape.
Fig 10: Insert the four M8 bolts and hold down bars into the corners of the brace
Fig 11: Fit the black plastic duct onto the brace assembly ensuring a tight, sealed fit