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Ultra-Aire SD12 Installation Instructions www.Ultra-Aire.com | (800) 533-7533 www.Ultra-Aire.com | (800) 533-7533 Ultra-Aire SD12 Installation Instructions
Important Precautions
• The dehumidifier is designed to be installed indoors in a space that is protected from rain and flooding.
• Install the dehumidifier with enough space to access the back and side panels for maintenance and service.
• Avoid directing the discharge air at people.
• If used near a water source, be certain there is no chance the dehumidifier could fall into the water or get
splashed and that it is plugged into a dedicated circuit and Ground Fault Circuit Interrupter (GFCI) protected
outlet.
• DO NOT use the dehumidifier as a bench or table.
• DO NOT place the dehumidifier directly on structural building members without vibration absorbers or unwanted
noise may result. Place the dehumidifier on supports to raise the base of the unit.
• A drain pan with a float switch MUST be placed under the dehumidifier if installed above a living area or above
an area where water leakage could cause damage.
Location Considerations
• Avoid using the dehumidifier in stand-alone crawl space or basement applications. The cool air in the crawl
space or basement, along with the cool air produced by the dehumidifier, will have a negative effect on the
performance of the machine and cause the system to fall into a defrost cycle.
• Allow sufficient clearance to handle the unit’s overall dimensions as well as the necessary return and supply
ductwork to the unit.
• Allow sufficient clearance for filter removal and to prevent airflow obstruction.
• Electrical service access will require the removal of a side panel. Allow sufficient clearance on a side of the unit.
• Locate the dehumidifier in an area where the cord’s length (9') easily reaches a 115 VAC electrical outlet with a
minimum of a 15 Amp circuit capacity.
• Locate the dehumidifier in an area
where field wiring the control (low
voltage) to the unit will be possible.
• It is recommended that a backdraft
damper be used in the discharge
duct of the dehumidifier, especially
when connecting to the supply
ducting system. The backdraft
damper prevents supply air from
counter flowing through the
dehumidifier when it is not
operating. The dehumidifier’s
location should be chosen to
allow installation of this accessory
if necessary.
• The dehumidifier may be suspended
from structural members with steel
hanger straps or a suitable
alternative, ensuring the assembly
supports the dehumidifier’s base
in its entirety. DO NOT hang the
dehumidifier from its cabinet.
• Allow for proper routing and drainage
of needed drain pipes.
DEHUMIDIFIER SET UP
Electrical Service Access
(Either Side)
Filter 9' Power Cord
Top View
Minimum
Clearance
For Filter
(Either Side)
15"
6" Fresh Air Intake (Optional)
10" Return Air Duct
10" Supply Air Duct
A
B
C
32 3/8"
With Collars Installed
26"
Without Collars Installed
B
C
Drain Port
A
Top View
41 1/2"
With Collars Installed
37 3/4"
Without Collars Installed
Drain Port 9' Power CordFilter
Minimum
Clearance
For Filter
(Either Side)
20"
6" Fresh Air Intake (Optional)
10" Return Air Duct
A
B
6” Fresh Air
Intake (Optional)
10” Return Air Duct
Electrical Service Access
(Either Side)
A
B
The 10” Supply Air Duct (not pictured) is
below the Fresh Air Intake and the Return
Air Duct. The same amount of clearance
is needed for the 10” Supply Air Duct.
