HE120 BY-PASS DRUM HUMIDIFIER
69-1860EF—01 4
BEFORE YOU BEGIN

When Installing this Product…

1. Read these instructions carefully. Failure to follow them
could damage the product or cause a hazardous condi-
tion.
2. Installation of this Humidifier requires several steps.
Read and understand instructions completely before
beginning installation.
3. After installation is complete, check out product opera-
tion as provided in these instructions.
STEP 1: DETERMINE BEST LOCATION
CAUTION
Freezing Water Hazard.
Can result in water damage to property.
Locate Humidifier where the ambient temperature is
between 32oF and 160oF.
1. Select a location to mount the Humidifier on the supply
(warm air) or return duct. See Fig 1.
• Select a location that can not damage the air
conditioner coil during installation.
• Do not locate Humidifier on furnace cabinet.
• Allow adequate clearance in front of and above the
Humidifier so you can easily remove cover and
perform maintenance.
• Allow enough space for the drain or overflow tube.
• Mount Humidifier in conditioned (heated) space to
prevent freezing.
• Select a location where the 3 ft. of Bypass Duct is
adequate to connect the Humidifier to the Bypass
Collar.
Fig. 1. Typical Humidifier installation locations.
NOTE: The Bypass Duct can be connected to either side of
the Humidifier Housing. See Fig. 2.
2. Select a location for the Bypass Collar on the opposite
duct. See Fig. 1. (The Humidifier is designed to allow
Bypass Duct mounting on either side of the Humidifier.
See Fig. 2.)
• Do not locate Bypass Collar on furnace cabinet.
• Select a location where the 3 ft. of Bypass Duct is
adequate to connect the Humidifier to the Bypass
Collar.
• Allow enough room for the optional Damper.
Fig. 2. Available Bypass configurations.
M12248D
HORIZONTAL
DOWN
FLO
LOWBOY
HIGHBOY
HUMIDIFIER
BYPASS
COLLAR