Mount Intake Hood; Install Ductwork; Important - Aprilaire 8140 Instrucciones De Instalación Y Funcionamiento

MOUNT INTAKE HOOD

Install a weather tight hood with a bird screen .
Cut a hole in the exterior wall that is large enough to fit 6" insulated flexible duct through with minimal compression of the insulation . Pull the duct
through the hole and attach the flex duct to the collar of the hood . Use metal foil tape or a plastic zip-tie to secure the duct to the collar . Pull the
insulation and vapor barrier over the duct and tape it to the collar .
IMPORTANT: The end of the insulation must be sealed to prevent condensation from forming inside the insulation. If a plastic zip-tie is used to
secure the insulation to the hood collar, also tape the end to seal it against condensation problems.
Press the hood against the outside wall and secure in place with screws; seal around the perimeter of the hood with caulk .

INSTALL DUCTWORK

Install 6" diameter flexible, insulated duct
from the round inlet collar of the unit to the
intake hood and from the oval outlet collar
of the unit to the HVAC system . Duct the
outlet of the ventilator to the return side of
the HVAC system (refer to FIGURE 4) .
IMPORTANT: The end of the
insulation must be sealed to prevent
condensation from forming inside
the insulation. If a plastic zip-tie is
used to secure the insulation to the
hood collar, also tape the end to seal
it against condensation problems.
4 English
FIGURE 4 – DUCTING IN UPFLOW AND HORIZONTAL HVAC SYSTEMS
TYPICAL ATTIC INSTALLATION
GABLE END WALL, BAND JOIST, OR PORCH SOFFIT
FRESH AIR INTAKE DUCT
RETURN MIXING BOX
FRESH AIR
INTAKE HOOD
WITH SCREEN
TYPICAL BASEMENT INSTALLATION
FRESH AIR
FRESH AIR INTAKE DUCT
INTAKE HOOD
WITH SCREEN
OUTSIDE
WALL
90-2241
FRESH AIR
VENTILATOR
AIR FLOW
FRESH AIR
VENTILATOR
AIR FLOW
FILTER
FURNACE/AIR HANDLER
FILTER FURNACE/AIR
HANDLER