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3. I
(
'
NSTALLATION
CONT
3.6 I
I
NSTALLING
NSULATED
Make sure the vapor barrier on the insulated ducts does not tear during installation to avoid condensation
within the ducts.
3.6.1 C
ONNECTION TO THE UNIT PORTS
Use the following procedure for connecting the insulated flexible ducts to the unit ports (exhaust air to outside and fresh air from
outside). Refer to identification labels beside ports before performing any duct and port connection.
Avoid compressing the insulation pulling the tape tightly around the joint. Compressed insulation loses its
insulation properties and causes water dripping due to condensation on the exterior surface of the duct.
For both remaining ducts, pull back the insulation to expose
the interior flexible duct.
Connect the interior flexible duct to the smaller part of the
inner ring of the port using a tie wrap.
Pull the insulation over the joint and tuck it between the
inner and outer rings of the port. Pull the vapor barrier over
the insulation and over the outer ring of the port.
Apply duct tape gently to the joint in order to make an airtight
seal. See figures at right.
)
D
F
D
LEXIBLE
UCTS
CAUTION
CAUTION
VJ0102
9
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