Bypass Model Installation
STEP FIVE: Bypass Duct Installation
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Bypass mounting is complete. Go to page 12.
Before proceeding to the next step:
I secured the humidifier to the duct as instructed.
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MCR29933
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1
2
MCR29878
On the duct opposite the humidifier Bypass install,
cut a 6-in. diameter duct hole.
• If the humidifier is on the supply duct, the 6-in.
diameter hole should be on the return.
• If the humidifier is on the return duct, the 6-in.
diameter hole should be on the supply.
Secure a 6-in. round duct starter collar into the 6-in.
duct hole.
Use rigid or aluminized flexible 6-in. duct to connect
the starter collar to the humidifier bypass port.
Secure the duct to the humidifier port with self-
drilling sheet metal screws using the pre-drilled
holes on the bypass port. For added seal, wrap sheet
metal tape around the duct to port connection point.
Humidifier 33-00617EFS—01