Honeywell HE420A - Manual (Page 3)

HE420A STEAM POWER HUMIDIFIER
3 68-0192—4
INSTALLATION
IMPORTANT
Read all the installation instructions before installing
the humidifier.
Select Location and Mount
There are three typical ways of mounting the steam humidifier:
• horizontally under at least a 10 in. (254 mm) wide duct using
the mounting bracket (preferred mounting);
• horizontally under a reinforced duct;
• horizontally under a duct extension using the mounting
bracket.
Decide which mounting is appropriate and follow those
mounting instructions. See Fig. 2 through 4.
Select a location where the humidifier can be plugged in
without an extension cord. The preferred installation location is
on the warm air side of the furnace. If that location is not
possible, mount the humidifier a minimum of 6 ft (1.8m)
upstream from the furnace filter. Depending on the location
selected, additional duct reinforcement may be necessary
because the humidifier weighs 18 lb. when filled with water.
Fig. 2. Mounting humidifier horizontally under duct using
mounting bracket.
Fig. 3. Mounting humidifier horizontally under duct.
Fig. 4. Mounting humidifier horizontally under duct
extension using mounting bracket.
WARNING
Electrocution, Heavy Equipment and Chemical
Hazard.
Can cause death, blindness, water damage to
home and heater failure.
• Do not cut into any air conditioning or electrical line.
• Mount the humidifier in a level position to avoid
water damage and heater failure.
• Wear safety glasses when cutting or drilling.
• Reinforce duct as necessary to ensure stability.
CAUTION
Steam Condensation, Fire and Freezing Water
Hazard.
Can cause failure of fan or limit control or result in
water damage to home.
• Do not install the humidifier where the sidewalls of
the return air duct are constructed of wood (i.e., floor
joist).
• Do not install the humidifier where the temperature
is lower than 32°F (0°C) or higher than 200°F
(93°C).
Mount Horizontally Using Mounting Bracket
(Preferred Mounting Method)
IMPORTANT
The duct must be at least 10 in. (254 mm) wide to use
this mounting method.
The duct is the strongest when using the bracket mounting
method because the least amount of duct reinforcement is
required because of the bracket location. However,
reinforcement may still be necessary to help support the
weight of the humidifier and keep it level.
M10536B
HU M ID IF IE R HU M ID IF IC AT EU R
M10578B
HUM IDIFIER HUM IDIFICA TEUR
M10580B
HU M ID IF IE R
HU M ID IF IC AT EU R