6
Figure 6. Typical Applications
TYPICAL APPLICATIONS
MULTIPLE DUCT APPLICATIONSINGLE DUCT APPLICATION
6
6
4
4
5
2
3
1
5
2
3
6
4
1
7
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
12” Diameter Flex Supply Duct
7
12” x 12” x 12” “Y” Fitting
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.
Blower Speed — For optimum system
performance and comfort, it may be necessary
to change the factory set speed. See table 1 for
factory settings. To change the blower speed:
If Standard Motor:
1. Disconnect all electrical power to the
unit and remove the service panel.
2. Remove the motor lead from terminal #4 of
the blower relay. Cut the wire tie holding the
motor lead bundle. The motor leads are
color coded as shown in Figure 7.
3. If the desired heating blower speed is different
than the cooling speed, remove and discard
the jumper wire between terminals #6 and
#4. on the blower relay. Place the desired
heating blower speed lead on terminal #6
and the desired cooling blower speed
lead on terminal #4 of the blower relay. Use
another wire tie (fi eld supplied) to bundle the
remaining motor leads.
