Install Instructions

DUCTING NOTES
• Use insulated duct when the dehumidifier is located in an unconditioned space such as an attic or a garage�
• Use a minimum of 12" of flex duct at the dehumidifier inlet and outlet to prevent vibration noise transmission�
• When ducting return to return (preferred), the dehumidifier must be wired to turn on the HVAC fan when operating (see page 14)�
• When ducting return to supply, allow adequate space before the first branch duct to ensure the warm dehumidified air is thoroughly mixed with the
HVAC system air�
DUCTING TO HVAC SYSTEM – BASEMENT AND ATTIC INSTALLATIONS
The Preferred Installation is to duct the dehumidifier to pull air from and return dehumidified air to the HVAC return duct� This installation will ensure
warm, dehumidified air is thoroughly mixed with the HVAC system air before being discharged into the living space� Alternatively, the dehumidifier
can be ducted to discharge to the supply duct, but the external static pressure of the HVAC system must not exceed 0�4"w�c� for the E080 and 0�6"w�c�
for the E100�
REQUIRED COMPONENT
• 10" ductwork
HVAC/FURNACE
AIR IS PULLED
FROM AND
SUPPLIED TO THE
RETURN DUCT
10" DUCT
DEHUMIDIFIER
6 ft
MIN
PLENUM BOX OR Y-FITTING
6 FT. MIN.
AIR HANDLER
FILTER
10" DIA. INSULATED DUCT
BOTH SIDES
CONDENSATE PAN
AIR IS PULLED FROM
RETURN DUCT
HVAC/FURNACE
AIR IS DISCHARGED
TO SUPPLY DUCT
MODEL E080
0.4" w.c. MAX
MODEL E100
0.6" w.c. MAX
10" DUCT
PLENUM BOX
AIR HANDLER
PLENUM
MODEL E080
0.4" w.c. MAX.
MODEL E100
0.6" w.c. MAX.
24" MIN.
FILTER
CONDENSATE PAN
10" DIA. INSULATED DUCT
BOTH SIDES
90-1886
90-1888
90-1887
90-1889
FIGURE 13 – PREFERRED BASEMENT INSTALLATION
FIGURE 15 – PREFERRED ATTIC INSTALLATION
FIGURE 14 – ALTERNATE BASEMENT INSTALLATION
FIGURE 16 – ALTERNATE ATTIC INSTALLATION
10