Mount Intake Hood; Important; Install Ductwork - Aprilaire 8142 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 good quality duct 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 of the unit to the supply
(see FIGURE 5) or return side (see FIGURE 6) of the HVAC system . In warm/dry climates, duct the outlet of the ventilator to the supply side of the
HVAC system .
If the fresh air is being discharged into the return side:
• A Model 6506 powered, normally closed damper must be installed in the inlet duct .
• Remove the damper from the Model 8142 or 8142NC . Simply open the damper and push on the blade to pop it out of the collar, then remove the blade .
FIGURE 5 – TYPICAL ATTIC INSTALLATION – FRESH AIR VENTILATOR DUCTED TO SUPPLY DUCT
FIGURE 6 – TYPICAL ATTIC INSTALLATION – FRESH AIR VENTILATOR DUCTED TO RETURN DUCT
4 English
FRESH AIR VENTILATOR
RETURN
FURNACE/AIR MIXING
HANDLER BOX
AIR FLOW
FRESH AIR VENTILATOR
RETURN
FURNACE/AIR MIXING
HANDLER
BOX
AIR FLOW
FRESH AIR
INTAKE DUCT
MODEL 6506
DAMPER
FRESH AIR
INTAKE DUCT
GABLE END WALL,
BAND JOIST,
OR PORCH SOFFIT
FRESH AIR
INTAKE HOOD
WITH SCREEN
90-2000
GABLE END WALL,
BAND JOIST,
OR PORCH SOFFIT
FRESH AIR
INTAKE HOOD
WITH SCREEN
90-2000