atwood Air Conditioners (non-ducted AC-1351, AC-1501) - Manual (Page 8)

AC IOM 3/01/2013 rev 1 8
ATTACH DUCT TO UNIT
- Raise the brace assembly and slip the
extension duct over the outside diameter of the
adapter underneath the rooftop unit. (Fig 11-12).
When attaching the duct to the unit take care
to ensure it forms a tight, unbroken seal that
doesn
’t allow discharge 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
7 N.m (5.2 lb-ft). As a rough guide the bolts
should be tightened so that the unit 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).
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 13).
Reach into the unit, grab the control cable plug
and pull down to -This will allow you to use two
hands to connect the control cable (see Fig 14).
- Connect the key pad control cables together
(see below). Be sure that the plug joins the
corresponding wire colors together (yellow to
yellow, red to red etc.)
Failure to properly plug the control
cables together correctly will result in
loss of power to display.