11. Reassemble humidifier side plates to customize the orientation for your specific
install. The side plate with the humidifier port needs to be on the side of the
humidifier that is closest to the 6 in. (155mm) hole cut in Step 10.
12. Insert flex duct with starter collar into the 6" (155mm) hole that was cut in Step
10. Reach into hole THROUGH THE FLEX DUCT so that the pliable metal tabs
can be bent outwards into the hole. These tabs, when bent outwards, will help
secure the flex duct into your home's duct work.
13. Slide remaining loose end of flex duct over the humidifier port on the HE240/
HE280, making sure that the flex duct advances past the raised plastic tabs on
the port. These tabs will help to hold the flex duct in place. Verify that the damper
blade has adequate clearance to move back and forth between the summer and
winter positions. Secure the flex duct in place with the plastic connector strap.
14. Seal the duct connec-
tions with foil tape.
Seal both
1) the connection
between the starter
collar end of the flex
duct and the home's
duct work and
2) the end of the flex
duct to the humidifier
over the top of the
connector strap.
15. Reinstall the humidi-
fier pad assembly in
the humidifier hous-
ing.
16. Hinge the cover in
place and secure with
the thumbscrew
located at the bottom
of the cover.
HE240, HE280 HUMIDIFIER AND INSTALLATION KIT
Fig. 7. Connecting bypass ducting.
9
HUMIDIFIER PORT
CONNECTOR STRAP
M33325
69-2685ES—01