Broan B98DHV Installation & Operation Instructions

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Installation & Operation Instructions 800.558.1711

The recommended installation creates a separate return for the Dehumidier in a central area

of the structure. Duct the supply of the unit to the air supply of the existing HVAC system. Connect an

insulated duct from outside to the 6" collar of the Dehumidier to provide fresh make-up air.

DUCTING TO HVAC SYSTEMS

CAUTION!CAUTION!

DO NOT CONNECT WITH A STATIC PRESSURE GREATER THAN OR EQUAL TO +0.5 WG.

CONTACT TECHNICAL SUPPORT AT (800) 558-1711 FOR ADDITIONAL DETAILS.

Ducting Considerations:

• All exible ducting connected to the Dehumidier should be UL listed.

• A short piece of exible ducting on all Dehumidier duct connections is recommended to reduce noise

and vibration transmitted to rigid ductwork in the structure.

• Use a minimum 10" diameter round or equivalent rectangular duct for total duct lengths of up to 25'. Use

a minimum 12" diameter round or equivalent rectangular duct for longer lengths.

• Grills or diusers on the duct ends must not excessively restrict airow.

• Eective dehumidication may require that ducting be branched to isolated, stagnant air ow areas. When

ducting to two or three areas, use 8" or larger diameter branch ducting. When ducting to four or more

areas, use 6" or larger diameter branch ducting. Provisions must be made to provide airow from supply

locations to the central return location. Proper air distribution is important to ensure even humidity control

and heat distribution throughout the structure.

• DO NOT locate the return in a bathroom or a kitchen.

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Broan B98DHV 98 Pint Dehumidifier