Use and Care Manual

HE240, HE280 HUMIDIFIER
5 69-2685ES—07
Fig. 3. Selecting duct location for humidistat.
Locating Closest 120 V Electrical Outlet
• Select location with access to an outlet. If not available, contact an electrician to have one installed.
• Make sure that the 18-gauge wire is adequate to reach from the humidifier to the humidistat, and also from
the humidifier to the transformer. Please note that the 18-gauge wire will need to be cut into the 2 correct
lengths. See “Wiring” on page 11 for more information.
INSTALLATION
1. Turn off power to the air handling system at the circuit breaker.
2. Draw a level line on the plenum in the selected location.
IMPORTANT
To ensure optimal product performance, be sure the mounting template is level before marking. Use of a
small level is recommended.
3. Locate the template (form number 69-2710 included in the box). For the HE240 model, cut out the tem-
plate along the dotted line.
4. Tape the template in position and trace around the template.
5. Remove the template and carefully cut the rectangular opening using tin snips.
6. Disassemble the humidifier; remove the cover and take out the humidifier pad assembly. See Fig. 4.
Fig. 4. Disassembling humidifier.
ALTERNATE
LOCATION
RETURN
AIR
RETURN
AIR
6 IN (152 MM)
MINIMUM
15 IN (381 MM)
MINIMUM
BEST
LOCATION
RETURN
AIR DUCT
M34579B
M33323
WATER
FEED NOZZLE
FRAME
HUMIDIFIER
HOUSING
WATER
FEED TUBE
HUMIDIFIER
PAD ASSEMBLY
COVER
SIDEWALL
BY-PASS SIDEWALL