Ducting The Dehumidifier Outlet To The Hvac; Register; Wiring - Aprilaire E080 Installation And Owner's Manual

DUCTING THE DEHUMIDIFIER OUTLET TO THE HVAC SYSTEM WITH DEDICATED
DEHUMIDIFIER INLET REGISTER
• To direct dehumidified 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) .
Dedicated Return to Main Supply
1
Figure 16: Discharge to Supply Side
1 - Supply
2 - Return
− 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) .
Dedicated Return to Main Return
2
Figure 17: Discharge to Return Side
1 - Supply
2 - Return
• Wire the dehumidifier to the HVAC system as shown
in Figure 20 and set up the dehumidifier to be
disabled when the AC is running .
Use dedicated registers to duct the dehumidifier
to the whole home when HVAC system ductwork is
unavailable or impractical (see Figure 18) .
2
3
90-2691
3 - HVAC Equipment
1
3
90-2691
3 - HVAC Equipment
2
1
6
Figure 18: Stand-Alone Duct
1 - Air is Pulled from
Ducted Space
2 - Dehumidified Space
3 - 10' Minimum

WIRING

No additional wiring is needed unless:
• the dehumidifier is ducted to the HVAC system
• a separate, external control such as a thermostat or
dehumidistat is to be used
• a float switch, either integral to a condensate pump
or mounted to the condensate pan, is used
Use 18-22 AWG wire for any needed wiring . Access the
dehumidifier wiring terminals by pulling off the wiring
access cover near the dehumidifier control display
(see Figure 19). Snap the wiring access cover back into
place after completing all wiring .
Figure 19: Wiring Access Cover Location
1 - Wiring Access Cover
4
3
5
90-1893
4 - Dehumidified
Air is Supplied to
Ducted Space
5 - Dehumidifier
6 - Grill with 10" Duct
Collar (2 Places)
1
90-1884
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