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HE120 BY-PASS DRUM HUMIDIFIER
9 69-1860EF—01
STEP 4: INSTALL BYPASS DUCT
CAUTION
Sharp Edges Installation Hazard.
Can cause personal injury.
Wear gloves and safety glasses.
1. Carefully stretch out flexible Bypass Duct between
Bypass Collar and Humidifier. See Fig. 12.
Fig. 12. Installing flex duct.
2. Secure Bypass Duct to Bypass Collar using at least two
#8 x 3/4 in. Sheet Metal Screws. See Fig. 13. (Drill pilot
holes using 1/8 in. drill bit.)
Fig. 13. Connecting Bypass Duct to Bypass Collar.
3. Secure Bypass Duct to Humidifier using at least three
#8 x 3/4 in. Sheet Metal Screws. See Fig. 14. Drill pilot
holes using 1/8 in. drill bit.)
Fig. 14. Connecting Bypass Duct to Humidifier.
4. Seal both duct connections with Duct Tape. See Fig. 15.
IMPORTANT
Use only duct rated metallized duct tape to seal duct
connections.
Fig. 15. Sealing connections with tape.
5. If you installed the optional Damper, check that it opens
and closes correctly. (It may be necessary to cut or
move duct tape to allow proper operation of the
damper.)