Aircommand IBIS Panduan Petunjuk Pemasangan & Pengoperasian - Halaman 10
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8. ATTACH DUCT TO UNIT
- Raise the brace assembly and slip
the black plastic duct over the
outside diameter of the outlet
underneath the rooftop unit. Ensure
that the notch cut in the plastic
ductwork aligns with the fans power
cable (Fig 12 & 13).
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.
- Engage and tighten the four M8
bolts with the threaded inserts in
the rooftop unit.
- Recommended tightening torque
of the bolts is 10.8 N.m (8 lb-ft). As a
rough guide the bolts should be
tightened
so
that
compresses the roof seal gasket to
approximately half its height.
- As the bolts are tightened ensure
that the hold down bars slot into
their recesses in the brace (Fig 12).
9. ATTACH PLENUM COVER
- Connect the main cover of the plenum
to the duct by attaching the blue
suspension cord to the lug on the inside
of the cover (Fig 14).
-This will allow you to use two hands to
connect the control cable (see Fig 15).
- Connect the key pad control cables
together (see below). Be sure that the
plug joins the corresponding wire
colours together (yellow to yellow, red
to red etc.)
Failure to properly plug the
control
cables
correctly will result in loss of
power to display
Fig 12: Raise the duct assembly up to the roof hole, ensuring the black plastic duct work forms a
tight fit around the evaporator fan underneath the unit. Then engage the four M8 bolts, taking
the
unit
Fig 13: Highlights how the notch on the plastic duct slots over the wire from the evap. Fan
together
care to ensure the hold down bars slot into their recesses
Fig 14: Shows the positioning of the lug inside the plenum cover
Pull the suspension cord down from inside the unit and
hook it through the lug shown inside the plenum housing.
This will allow two free hands to connect the control cables
together.