10
Connecting the Return and Supply
Air Flexible Ducts
a. The return and supply duct openings for all
units is 14” in diameter.
b. The fl exible ducts can be connected to
the corresponding fi ttings with the clamps
provided with the ducts. Note: All connections
should be leak tight or a loss in cooling
capacity will result.
c. The fl exible ducts may be cut to the required
length, see instructions packed with duct.
Keep all ducts as short and straight as
possible. Avoid sharp bends.
d. Ducts may be spliced with sheet metal
sleeves and clamps. (See Ducting Installation
Accessories below.)
e. Once the inner duct is connected to the
proper fi tting, the insulation and plastic sleeve
should be pulled over the connection and
clamped.
f. For homes with multiple supply ducts or for
special applications, a Y fi tting is available
to divide the supply air so it can be ducted
to different areas of the home for more
effi cient cooling. Note: The Y fi tting should
be insulated for maximum performance.
ELECTRICAL WIRING
General —
Electrical power wiring must be made
in accordance with all applicable local codes and
ordinances, and with the current revision of the
National Electric Code NFPA 70 or in Canada
CSA C.22.1 - Canadian Electrical Code Part 1.
5
5
4
4
5
2
3
1
5
2
3
5
4
1
7
Figure 10. Typical Applications
Ref. No.
Description
1
12” x 20” Return Air
2
16” x 20” Air Filter
3
12” x 20” Grille
4
Supply Damper
5
14” Diameter Flex Return Duct
6
“Y” Fitting
TYPICAL APPLICATIONS
MULTIPLE DUCT APPLICATION
SINGLE DUCT APPLICATION
