Ducting The Dehumidifier Inlet And Outlet; To The Hvac System - Aprilaire E130 Installation & Owner's Manual

DUCTING THE DEHUMIDIFIER INLET AND OUTLET TO THE HVAC SYSTEM
• Use when both sides of the duct system are accessible
(see FIGURE 14) .
• When ducting from return to supply, the HVAC blower does
not need to be running when the dehumidifier is running .
• When ducting return to supply, allow adequate space (24" min)
before the first branch duct to ensure the warm dehumidified
air is thoroughly mixed with the HVAC system air .
FIGURE 14: FOUR INSTALLATION CONFIGURATIONS
RETURN-TO-RETURN
BASEMENT INSTALLATION
10" DUCT
RETURN-TO-RETURN ATTIC INSTALLATION
6" MIN.
AIR HANDLER
FILTER
10" DIA. INSULATED DUCT
BOTH SIDES
90-2024
90-2024
10
HVAC / FURNACE
6 ft
MIN
DEHUMIDIFIER
PLENUM BOX OR Y-FITTING
6 FT. MIN.
CONDENSATE PAN
• When ducting from return to return, wire the dehumidifier to
the HVAC system as shown in FIGURE 19 to ensure the HVAC
blower runs when the dehumidifier is operating .
• Wire the dehumidifier to the HVAC system (see FIGURE 19 for
exact wiring) and set up the dehumidifier to be disabled when
the AC is running .
RETURN-TO-
SUPPLY BASEMENT
INSTALLATION
AIR IS PULLED FROM
RETURN DUCT
90-2022
90-2022
RETURN-TO-SUPPLY ATTIC INSTALLATION
PLENUM BOX
10" DIA. INSULATED DUCT
BOTH SIDES
90-2025
90-2025
10" DUCT
6" MIN. 6" MIN.
AIR HANDLER
FILTER
24" MIN.
CONDENSATE PAN
AIR IS DISCHARGED
TO SUPPLY DUCT
HVAC/FURNACE
90-2023
90-2023
PLENUM