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Horizontal Installation
A
G
H
A. Return air from house
B. Existing return air duct
C. To existing furnace or air handler
D. Dehumidifier
Vertical Installation
G
H
A. Return air from house
B. Existing return air duct
C. To existing furnace or air handler
D. Dehumidifier
Install Dehumidifier—Existing Furnace or Air Handler with Dry Air to the Basement or Crawl Space
To reduce the humidity that can be found under buildings and in
damp basements, install a supply air duct from the dehumidifier
to the basement or crawl space.
WARNING
Electrical Shock Hazard
Disconnect power before servicing.
Replace all parts and panels before operating.
Failure to do so can result in death or electrical shock.
8
E
F
A
B
D
E. Power damper (optional)
F. Manual damper (required)
G. Outside air
H. Screened intake hood
B
E
D
F
E. Power damper (optional)
F. Manual damper (required)
G. Outside air
H. Screened intake hood
NOTE: When using the existing duct system, the dehumidifier fan
and the existing system fan must be interlocked by using the low
voltage interlock method provided with the dehumidifier. See the
wiring diagrams in the "Electrical Connections" section.
1. Disconnect power.
Use two or more people to move and install
dehumidifier.
Failure to do so can result in back or other injury.
2. Place the dehumidifier in final location. See "Location
Requirements."
C
WARNING
Excessive Weight Hazard
C
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