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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
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
punctured
during
installation procedure
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
duct to the unit take
care to ensure it forms
a tight, unbroken seal that
doesn't allow cold air to escape.
Roof thickness (mm)
Include 'H' frame if used
are
125
100
80
60
40
being
the
25 (absolute minimum)
Fig 10: Insert the four M8 bolts and hold down bars into the corners of the brace
the
Fig 11: Fit the black plastic duct onto the brace assembly ensuring a tight, sealed fit
Duct length required
(mm)
150 (as supplied)
125 (cut 25)
105 (cut 45)
85 (cut 65)
65 (cut 85)
50 (cut 100)
Hold down bolt length
required (mm)
As supplied
As supplied
As supplied
Cut 50
Cut 70
Cut 85