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Ultra-Aire 120V Installation Instructions
www.Ultra-Aire.com | (800) 533-7533
DUCTING TO HVAC SYSTEMS
When installing the Ultra-Aire 120V in a structure that does not have a forced air HVAC system, a single
return for the Ultra-Aire 120V should be installed in a central location.
Install an insulated duct from outside to the 6" collar of the Ultra-Aire 120V to provide fresh air
ventilation (optional).
The supply of the Ultra-Aire 120V should be ducted to remote areas of the structure such as bedrooms, living
room, den, etc. Either one or two supply ducts may be used to distribute air. Be sure to utilize multiple rooms
to allow air inside the structure to properly circulate. Proper air distribution is important to ensure even
humidity control and heat distribution throughout the structure.
A 6" diameter duct is recommended for branches to bedrooms. An 8" diameter duct is recommended for
branches to larger areas.
• DO NOT locate the return in a bathroom or kitchen.
• DO NOT locate the supply in rooms where doors may be closed.
• Control should be located remotely from the dehumidifier and placed in a central location.
Indoor
Air Return
Fresh Air
Intake
(Optional)
Motorized
Damper
Ultra-Aire
Supply
Duct Cover Plate
No Existing Ductwork Installation
No Existing Ductwork Installation