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Connecting the ducts to the unit
barrier using the port strap (included in unit parts bag), To
Insulated flexible ducts
Use the following procedure to connect the insulated flexible ducts
to the ports of the unit (Exhaust air to outside and Fresh air from
outside ports).
do so, insert one collar pin through vapor barrier and first
strap hole, then insert the other collar pin through vapor bar-
rier and center strap hole and close the loop by inserting the
first collar pin in the last strap hole.
4&
CAUTION
PROPERTY DAMAGE
HAZARD
Failure to follow this caution may result in property damage.
4&
CAUTION
PROPERTY DAMAGE
HAZARD
Failure to follow this caution may result in property damage.
Make sure the vapor barrier on the insulated ducts does not
If ducts have to go through an unconditioned space (e.g.:
tear during installation to avoid condensation within the ducts.
attic), always use insulated ducts.
Non-insulated rigid ducts
Use metal screws and duct tape to connect the rigid ducts to the
. Pull back the insulation to expose the flexible duct.
.
unit ports.
. Attach the flexible duct to the port using tie wrap.
Non-insulated flexible
duct:
on-insulated
flexible
ducts
. Pull the insulation over the joint and tuck in between the
.
.
.
inner and outer rings of the double collar.
Use tie wraps to connect the flexible ducts to the unit ports.
4, Pull down the vapor barrier (shaded part in Fig. 15) over the
outer ring to cover it completely. Fasten in place the vapor
Collar pin
A11204
Fig. 15 - Ductwork installation
Non-insulated rigid ducts
Non-insulated flexible ducts
A11205
Fig. 16 - Ductwork installation
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