Aprilaire E100 - Ducting the Dehumidifier Outlet to the HVAC System with Dedicated Dehumidifier Inlet Register; Wiring

A B
C
A B
C
FIGURE 16: DISCHARGE TO SUPPLY SIDE
FIGURE 17: DISCHARGE TO RETURN SIDE
90-2691
90-2691
A. SUPPLY
B. RETURN
C. HVAC EQUIPMENT
A. SUPPLY
B. RETURN
C. HVAC EQUIPMENT
DEDICATED RETURN TO MAIN SUPPLY
DEDICATED RETURN TO MAIN SUPPLY
AIR IS PULLED
FROM DUCTED
SPACE
DEHUMIDIFIED AIR
IS SUPPLIED TO
DUCTED SPACE
10’
MIN
DEHUMIDIFIED
SPACE
A
B
FIGURE 18: STAND-ALONE DUCT
90-1893
A. DEHUMIDIFIER
B. GRILL WITH 10” DUCT COLLAR (2 PLACES)
DUCTING THE DEHUMIDIFIER OUTLET TO THE HVAC SYSTEM WITH DEDICATED DEHUMIDIFIER INLET REGISTER
• To direct dehumidied air away from a potentially wet
AC coil, duct to the supply side of the HVAC system for air
handler applications where air is pulled through the AC coil
(see FIGURE 16).
• Duct to the return side of the HVAC system for furnace
applications where air is pushed through the AC coil. Check
local codes to verify that ducting to the return side of the
HVAC system is allowed (see FIGURE 17).
• Wire the dehumidier to the HVAC system as shown in
FIGURE 20 and set up the dehumidier to be disabled when
the AC is running.
Use dedicated registers to duct the dehumidier to the
whole home when HVAC system ductwork is unavailable or
impractical (see FIGURE 18).
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