Broan B70DHV - Recommended HVAC System Installation; Dedicated Return to HVAC Supply

9
800.558.1711 Installation & Operation Instructions
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
dehumidier to the air supply of the existing HVAC system. Utilize the optional fresh air ventilation duct to
provide outside air.
• Install a dedicated 8" air return for the B70DHV from a central area of the structure.
• Duct the supply of the B70DHV to the supply of the existing HVAC system with a backdraft damper.
• If the existing system has multiple returns, instead of installing a dedicated return to the B70DHV,
it is possible to select one to disconnect from the existing HVAC system and use it for the dedicated
B70DHV return. Select a return from a central location in the house that is always open to the rest
of the structure. DO NOT use a return from a room where doors are kept closed.
• DO NOT locate return in a bathroom or kitchen.
• Control should be located remotely from the dehumidier and placed in a central location.
• Please visit our website at www.Boran-NuTone.com for more installation options.
Santa Fe
Supply
Air Handler
HVAC Supply
Dedicated Santa Fe Ultra70 Return to A/C Supply
HVAC Return
Indoor Air
Return
Fresh Air Intake (Optional)
Motorized Damper
Backdraft
Damper
Dedicated Return to HVAC Supply
Supply