Onnecting The Ducts To The; Nstalling The Andem; Nstalling Exterior; Nit - Venmar 41502 Installation Manual

2. INSTALLATION (
CONT
2.7 C D
ONNECTING THE UCTS TO THE
Insulated flexible ducts:
Use the following procedure for connecting the insulated flexible ducts to the port of the unit (Exhaust air to outdoors and Fresh
air from outdoors ports).
Make sure the balancing dampers are set to their appropriate position before connecting the ducts to the ports. See Section 2.3.
VJ0039
Pull back the insulation to expose
the flexible duct.
Rigid ducts:
Do not use screws to connect the rigid ducts to the ports.
Use a small length of flexible duct to connect the rigid duct to the ports in order to avoid vibration transmissions. Use tie-wraps to
perform connections.
2.8 I T
NSTALLING THE ANDEM
The joist opening needed to install the Tandem
maximum height of the Tandem
To connect the insulated flexible ducts to the Tandem
oudoors and Fresh air from outdoors), follow the instructions included with the
®
Tandem transition kit (part no.14690).
*Patented.
NOTE: If the joist are perpendicular to the ducts, or if the connection to the exterior hood is in a limited area, the installation will need
2 exterior hoods instead of one. See next Section 2.9 I
' )
D
U

NIT

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Attach the flexible duct
to the port using tie
wrap.
® T * K
RANSITION IT
®
transition must be 9¾" minimum. The
® transition is 8¾" .
CAUTION
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Pull the insulation over
the joint and tuck in
between the inner
and outer rings of the
double collar.
CAUTION
® transition (Exhaust air to
2 E H
NSTALLING XTERIOR OODS
9
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Pull the vapor barrier Apply duct tape to
over the insulation and the joint making an
over the outer ring of airtight
the double collar. compressing
insulation when pulling
CAUTION
the tape tightly around
Make sure the
the joint.
vapor barrier on
Compressed insulation
the insulated ducts
loses its R value and
does not tear during
causes water dripping
installation to avoid
due to condensation
c o n d e n s a t i o n
on the exterior surface
within the ducts.
of the duct.
VR0003
Tandem® transition kit
.
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seal. Avoid
the