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Ultra Aire XT105H / XT155H / XT205H Installation Instructions
Air Handler
HVAC Supply
Dedicated Ultra-Aire 90 Return to A/C Supply
HVAC Return
Fresh Air Intake
(Optional)
Motorized
Damper
Indoor
Air Return
Ultra Aire
Supply
Backdraft
Damper
Recommended HVAC System Installation
DUCTING TO HVAC SYSTEMS
The recommended installation draws air from a dedicated indoor air return and ducts the supply of the
dehumidifier to the air supply of the existing HVAC system. Utilize the optional fresh air ventilation duct to
provide outside air.
• Install a dedicated air return for the Ultra Aire Dehumidifier from a central area of the structure.
• Install an insulated duct from outside to the 6" collar of the Ultra Aire Dehumidifier to provide fresh air
ventilation (optional).
• Duct the supply of the Ultra Aire Dehumidifier to the supply of the existing HVAC system with a
backdraft damper.
• DO NOT locate return in a bathroom or kitchen.
• Control should be located remotely from the dehumidifier and placed in a central location.
Please visit our website at www.ultra-aire.com/install-options/ for more installation options.
Dedicated Ultra Aire Return to HVAC Supply
