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SAFETY INSTRUCTIONS
OVERVIEW
SPECIFICATIONS
WARNING
• This product must be installed by a qualified heating and air conditioning contractor. Failure to do so could result in
serious injury from electrical shock or damage to product.
• 120 volts may cause serious injury from electric shock. Disconnect electrical power before starting installation.
Leave power disconnected until installation is completed.
• Sharp edges may cause serious injury from cuts. Use care when cutting plenum openings and handling ductwork.
• Unit weight and dropping may cause personal injury or equipment damage. Handle with care.
© Research Products Corporation 2005
Dimensions: 20
3
⁄4”W x 24”L x 20
7
⁄8”H (mounting feet fully engaged)
20
3
⁄4”W x 24”L x 22
3
⁄8”H (mounting feet fully extended)
Weight: 93 lbs
Capacity: 90 pints per day @ 60%RH, 80°F
(ANSI/AHAM DH-1-2003 conditions)
Power: 115 VAC, 8 Amps. Unit is equipped with an
8 ft. grounded power cord.
The purpose of the Aprilaire Dehumidifier is to keep the humidity in the house at acceptable limits to reduce the unwanted
effects of high humidity. The dehumidifier will measure the dewpoint of the house to decide if it needs to run. The dryness set
point can be adjusted with the control knob on the inlet side of the unit.
An integrated air cycling feature can be used to turn on the HVAC fan to cycle the air through the house to balance the indoor
conditions. This feature is set up during installation based on house size and homeowner preference. An optional ventilation
damper can also be installed to bring in outside air during air cycling.
LOCATION NOTES
The dehumidifier can be installed in a wide variety of locations (including unconditioned spaces), provided the ambient conditions
are between 40°F and 150°F. Note the following requirements for each application:
Attic / Garage
• All duct work must be insulated.
• Unit should be placed in a drain pan with overflow protection to prevent water damage in the event of a drain failure.
• The condensate line should be insulated to prevent condensation on the outside of the condensate line.
• Precautions should be taken to assure that the unit does not operate in conditions below 40°F or above 150°F.
Basement
• Precautions should be taken to assure that the unit does not operate in conditions below 40°F.
Crawl Space
• All duct work must be insulated.
• The condensate line should be insulated to prevent condensation on the outside of the condensate line.
• Precautions should be taken to assure that the unit does not operate in conditions below 40°F.
Design Airflow: 275 CFM @ 0.6 in. w.c.
Filter: MERV 8 Filter
Cabinet Insulation: 1” foil faced EPS insulation
Inlet Air Operating Conditions: 40°F to 105°F
Ambient Air Operating Conditions: 40°F to 150°F