Honeywell HE420A Manual page 4
Steam power humidifiers
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Also See for HE420A:
- Owner's manual (12 pages) ,
- Manual (8 pages) ,
- Owner's manual (8 pages)
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HE420A,B AND HE460A,B STEAM POWER HUMIDIFIERS
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.
1. Tape the template 1/2 in. (13 mm) from the edge of the
duct and trace around the template. See Fig. 5.
2. Drill a 3/8 in. (10 mm) hole within the center portion of
the template.
3. Use tin snips to cut around the outline of the template.
IMPORTANT
Follow the dotted line carefully.
4. Remove the template and sheet metal.
5. Cut two 8 in. (203 mm) pieces of the S-cleat
(provided).
6. Place the S-cleat pieces on the narrow sides of the
rectangular opening so the opening (slot) protrudes
down and out of the duct.
68-0192—2
1/2 IN. (13 MM)
FROM EDGE
TEMPLATE
Fig. 5. Position template.
7. Cut a 10-1/2 in. (267 mm) piece of S-cleat.
8. Place the 10-1/2 in. (267 mm) piece of S-cleat on the
long side of the rectangular opening closest to the
center of the duct so the opening (slot) shows below
the duct.
9. Use two 8-32 screws and nuts (provided) to attach the
mounting bracket (L shaped with six holes) to the top/
front surface of the humidifier. The humidifier is now
ready for mounting.
NOTE: Position the humidifier so the upward
protrusion of the U is on the side toward the
reservoir.
IMPORTANT
Do not mount the humidifier until the water level is
adjusted. See Set The Water Level section.
10. Slide the humidifier tabs into the installed S-cleat. Be
sure the back tab engages completely with the S-cleat
and the mounting bracket touches the side of the duct.
11. Using the mounting bracket as a guide, drill three
7/64 in. (3 mm) holes through the duct.
12. Secure the humidifier to the duct with three of the
no. 8 sheet metal screws (provided).
4
M10876
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