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DUCTING TO HVAC SYSTEMS
Alternative Closet Installations
If the Recommended Closet Installation is not possible, there are several alternative installation options available.
• No inlet duct is required. Air is pulled through the louvers or grille from the living space.
• Install a 6" insulated duct from outside, teeing into the 8" return duct of the Ultra-Aire 70H to provide fresh
air ventilation (optional).
• Control should be placed in a central location or the on board control can be used for this installation.
Central Return to HVAC Return
Duct the supply of the Ultra-Aire 70H
to the return side of the existing
HVAC system.
In a central return system, the
HVAC fan must run when the
dehumidifier is running.
No Duct - Central Return to HVAC Return
Attach outlet duct with a vertical
flow through so air is not
discharged into wall or other
obstruction. The HVAC system
will naturally pull dehumidified
air from the closet and distribute
throughout the structure. See
Page 7 for Vertical Flow Through.
16
Ultra-Aire 70H Installation Instructions
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www.Ultra-Aire.com | 1-800-533-7533
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