Safety Instructions; Overview; Specifications; Location Notes - Aprilaire 1720 Installation,Safety & Maintenance Manual

SAFETY INSTRUCTIONS

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.

OVERVIEW

The purpose of the Aprilaire Model 1720 Dehumidifier is to keep the humidity in the building at acceptable limits to reduce
the unwanted effects of high humidity. The dehumidifier will measure the dewpoint of the building 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 building to balance the indoor
conditions. This feature is set up during installation based on building size and building manager preference. An optional
ventilation damper can also be installed to bring in outside air during air cycling.

SPECIFICATIONS

Overall Dimensions:
21"W x 24 ⁄ "L x 21"H (mounting feet fully engaged)
3
4
21"W x 24 3 ⁄ "L x 22 1 ⁄ "H (mounting feet fully extended)
4 2
Weight: 100 lbs
Capacity: 150 pints per day @ 60%RH, 80°F
(ANSI/AHAM DH-1-2003 conditions)
Power: 115 VAC, 14 Amps. Unit is equipped with an
8 ft. grounded power cord.

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 installation requirements:
• 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 (above
ceiling installs).
• 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 ambient conditions below 40°F or above 150°F.
• Unit is not designed for outdoor use.
2
Design Airflow: 500 CFM @ 0.8 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
Refrigerant: R-22, 25 oz.