Aprilaire Dehumidifier Model 1730A

PRODUCT SPECIFICATIONS

Images of the Aprilaire Model 1730A dehumidifier. The left image shows a front view of the unit with a circular air inlet and outlet. The right image shows a side view with dimensions and connection points labeled.

PRODUCT FEATURES AND APPROXIMATE OPERATING CONDITIONS

MODEL 1730A PERFORMANCE

Diagram showing unit dimensions and duct connection sizes. Dimensions include width (12.5" cabinet, 13" w/doors), height (14.5" cabinet, 17" w/ 2.5" leveling feet), and length (22" cabinet, 27" w/collars). Duct connection sizes are indicated as 8" diameter for discharge and 3/4" pipe outside, 1/2" pipe inside for drain. Callouts show measurements like 13.00, 14.50, 22.00, 8.00, and a range of 1.00 (25) to 3.00 (76).

Performance table for Model 1730A at inlet air conditions and 150 CFM (.5"W.C).

Note: Values in the table represent Water Removal in Pints Per Day (PPD).

PRINCIPLE OF OPERATION

The Aprilaire Model 1730A is designed to dehumidify the air coming into the unit by passing the incoming air over an evaporator coil to drop the air temperature and dewpoint of the air. Moisture is removed from the air and drained out of the unit to a common floor or waste drain. The air is then reheated in the condenser coil and exits the unit.

Dehumidification occurs until the setpoint is reached, then shuts off until the Model 75 Control determines a need for operation.

APPLICATION

The Aprilaire Model 1730A is the perfect product for smaller homes, townhomes and condominiums.

Installation Applications

Main Return To Main Supply

Diagram showing air flow: [Return Air] -> [Air Handler] -> [Supply Air].

• This is the most common whole house installation.
• Air is pulled from the return duct, dehumidified, and returned to the supply plenum.
• Minimizes re-evaporation off of cooling coil.
• This application is used in basements, attics, equipment closets, etc.

Main Return To Main Main Return

Diagram showing air flow: [Return Air] -> [Air Handler] -> [Return Air].

• This application can be used when a supply duct is not available.
• Air is pulled from the return duct, dehumidified, and returned to the return duct.
• Assures that the dehumidified air is mixed with the rest of the air in the duct before it re-enters the house.
• This application is used in basements, attics, crawl spaces, etc.

Dedicated Return To Main Supply Or Return

Diagram showing air flow: [Return Air] -> [Air Handler] -> [Supply Air or Return Air].

• This application can be used when a return duct is not available.
• Air is pulled through a dedicated return grille, dehumidified, and returned to the supply plenum or return.

Dedicated A/C Return To Dedicated Supply

Diagram implies connections for dedicated return and dedicated supply air.

• For homes without duct work.
• Dries a specific area that has a moisture issue.
• Dehumidifier can be located in a closet, mechanical room or unfinished area and ducted into a finished room.

Unducted (Freestanding)

Diagram implies air is drawn from and returned to the same space without ductwork.

• Model 1730A unducted.
• Air is pulled into the dehumidifier directly from the space, dehumidified, and returned back to the space.
• This application is used in basements, crawlspaces, etc.

Model 75 Wall Mount Dehumidifier Control

Image of the Model 75 Wall Mount Dehumidifier Control, showing an LCD display with '45%' and 'ON OFF' buttons.

• On/Off buttons
• Wall mounted living space control
• Displays RH and controls to an RH value