York D4IC-360, Technical Information

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5.2.- Application of side ducts (Fig.6)
1. Return duct:
- Remove and discard the cover (C).
- Connect the duct to the flange provided along the
entire perimeter of the opening on the side of the
unit.
2. Impulse duct:
- Remove and discard the cover (C4).
- Connect the duct to the flange provided along the
entire perimeter of the opening on the side of the unit.
. In both cases, make sure of air tightness between the
duct and the panel of the unit.
4. Very important: Cover (C5) is related to the opening for
the outdoor air intake when the unit is equipped with the
corresponding accessory (economiser or manual outdoor
air damper).
If the unit is not equipped with any of these accessories,
it is supplied with the cover fitted into place and none of
the screws that fasten it to the panel should be removed
or loosened under any circumstance.
- Fig. 6 -
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IMPULSE
C4
RETURN
C4