Wiring The Humidifier - Honeywell Enviracaire Elite HE225A Product Data

HE225A,B AND HE265A,B BYPASS FLOW-THROUGH HUMIDIFIERS
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Fig. 3. Typical humidifier installation locations.
2. Tape template in position and trace around template.
3. Remove template and carefully cut rectangular opening.
4. Disassemble the humidifier; remove the cover and take
out the humidifier pad assembly. See Fig. 4.
NOTE: Sidewalls are interchangeable for either left or
right bypass installation. To change direction,
remove screws holding each sidewall, switch
sidewall locations and reinstall the screws.
5. Position the humidifier housing in the opening (be sure it
is level), so the locking tabs are in place on the lower
sheet metal edge of the opening.
6. Secure the humidifier housing to the opening at the top
and bottom using sheet metal screws.
7. Locate the other plenum and cut an opening for a 6 in.
(152 mm) collar.
8. Install the 6 in. (152 mm) collar.
NOTE: Be sure to install a duct damper for summer
shutoff on systems with air conditioning.
9. Install a 6 in. (152 mm) diameter duct from the collar to
the humidifier.
NOTE: Some installations require a 90° elbow attachment to
the collar.
10. Seal the duct connections with duct tape.
NOTE: To avoid sagging and stress on the humidifier,
add support when ducting is longer than 4 ft
(120 cm).
11. Reinstall the humidifier pad assembly in the humidifier
housing.
NOTE: Be sure water feed tube is not pinched or
kinked.
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M12248C
12. Hinge the cover in place and secure with the thumb-
screw located at the bottom of the cover.
COVER
SIDEWALL
BY-PASS SIDEWALL
Fig. 4. Humidifier components.

WIRING THE HUMIDIFIER

CAUTION
Hazardous Voltage.
Can cause personal injury or equipment damage.
• Disconnect the power supply before installing or
servicing.
• On multi-speed blower applications, do not wire the
high voltage side of the transformer to the same
power source that services the furnace blower.
Premature transformer burnout can occur.
All wiring must comply with applicable local codes, ordinances
and regulations.
1. Mount the transformer in a convenient location.
2. Connect wires to the 120V side of the transformer.
3. Wire the humidifier solenoid valve, current sensing
relay, or sail switch, humidity control and transformer.
Refer to the humidity control installation instructions for
mounting and wiring information.
NOTE: Select models of fan centers include humidifier
taps so the current sensing relay or sail switch
is not needed.
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WATER
FEED NOZZLE
HUMIDIFIER
PAD ASSEMBLY
FRAME
HUMIDIFIER
HOUSING
WATER
FEED TUBE
M14672