
Installation Guide
69-2307—01 4
safeTy PReCauTIons
CAUTION: Voltage Hazard.
Can cause electrical shock or equipment damage.
Disconnect HVAC equipment before beginning installation.
Safety Precautions
• Donotdirectthesteamnozzleatpeople.
• Ifusednearapoolorspa,ensurethehumidifiercannotfallintothewaterorbesplashed.
Also, ensure the humidifier is plugged into a GFI ground fault interrupt outlet.
• Waterinsidetankcanbeveryhot.Followinstallationinstructionsandservicestepsexactly
as given in the technical literature.
• Donotcutintoanyairconditioningorelectricalline
• Wearsafetyglasseswhencuttingordrilling.
• Mountthehumidifierinalevelpositiontoavoidwaterdamageorheatingelementfailure.
• Reinforceductasnecessarytoensurestability.
The preferred installation location is on the warm or supply side of the furnace. If that location is
not possible, the steam nozzle should be inserted a minimum of 12 in. upstream of the furnace filter.
Depending on the location and the duct rigidity, additional duct reinforcement may be necessary.
• Donotinstallthehumidifierwheretheambienttemperatureislowerthan32°F(0°C)orhigher
than 120°F (49°C).
• Donotinstallthehumidifierthroughsidewallsofareturnairductmadeofwood(e.g.,floor
joist).
• Themountingareamustbestrongenoughtosupportthehumidifier’sweightwhenitisfull
of water (approximately 12 to 15 lbs.), and to hold the humidifier in a level position for safe,
reliable operation. Otherwise, additional duct or wall reinforcement will be necessary.
• Iftheductinghasexposedinsulatedmaterialsontheinterior,ensurethenozzleextends
beyondtheinsulationbyclearingawayexcessinsulationattheinsertionpoint.Youmaywish
to replace a section of insulated duct (approximately 6 in. x 6 in.) with rigid, non-insulated
sheet metal to ensure effective installation.
• Mounttheunitwhereitwillhavesmoothairflowacrosstheendofthesteamnozzle.
• Allowatleast1footclearancetoventilationholesinhumidifier’scover.Donotcoverthese
holes. Covering them can increase the internal operating temperature of the humidifier and
shorten the humidifier’s life.
• Allowatleast4inchesofclearancebetweenthesteamnozzleinsertionholeandthetopof
the interior duct to avoid condensation forming. The mounting template is designed to allow
clearance if the top of the template is at or below the top surface of the interior duct.
• Donotmountdirectlytoductboard.
• Donotinstallincompletelyenclosedspaces,suchasacabinetorunventilatedcloset.
Choose a location that is well ventilated.
Warning: Electrocution, Heavy Equipment, and Chemical Hazard.
Can cause death, blindness, water damage to home and heating element failure.
Warning: Steam Condensation, Fire, and Freezing Water Hazard.
Can cause failure of fan or limit control or result in water damage to home.
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