Maintenance

Clean or Replace the Air Filter

After initial installation, check the air filter after 6 months. If it appears matted with dust, pet hair or other debris, maintain a 6-month cleaning schedule. If it appears

Check the Drain

The drain should be checked annually to ensure there is no blockage or air lock in the drain system. If the unit is not properly draining, have it checked by a qualified service professional.

clean or lightly loaded, maintain a 12-month cleaning schedule. Replacement filters are Aprilaire Part No. 4510 and can be purchased from your installing contractor.

Filter Cleaning Procedure

1.Turn the ON/OFF switch OFF.

2.Remove the filter access door from either side of the dehumidifier.

3.Slide the filter out of the dehumidifier.

4.Flush the filter with warm water and a mild detergent solution.

5.Shake off the excess water from the filter.

6.Replace the filter – make sure the filter seats in both the top and bottom filter rails.

7.Replace the filter access door.

8.Turn the ON/OFF switch ON.

Procedure to Check Drain System

1.Turn the ON/OFF switch OFF.

2.Remove the filter access door from either side of the dehumidifier.

3.Slide the filter out of the dehumidifier to expose the evaporator coil.

4.Slowly pour a pint of water into the dehumidifier drip pan near the bottom of the evaporator coil so that the water flows into the drain pan.

5.Check where the drain piping flows into the floor drain. If water does not flow out, the unit is not properly draining.

6.Turn on the ON/OFF switch ON.

EVAPORATOR

COIL

DRIP PAN

FILTER RAIL

90-1558

CAUTION

Do not use spray solvents or cleaners on or near the inlet side of the dehumidifier.

If desired, apply cleaner to a cloth and use to clean the cabinet.

Limited Warranty

Your Research Products Corporation Aprilaire® Dehumidifier is expressly warranted for five (5) years from date of installation to be free from defects in materials or workmanship.

Research Products Corporation’s exclusive obligation under this warranty shall be to supply, without charge, a replacement for any component which is found to be defective within such five (5) year period and which is returned not later than thirty (30) days after said five (5) year period by you to either your original supplier or to Research Products Corporation, Madison, Wisconsin 53701, together with the model number and installation date of the dehumidifier.

THIS WARRANTY SHALL NOT OBLIGATE RESEARCH PRODUCTS CORPORATION FOR ANY LABOR COSTS AND SHALL NOT APPLY TO DEFECTS IN WORKMANSHIP OR MATERIALS FURNISHED BY YOUR INSTALLER AS CONTRASTED TO DEFECTS IN THE DEHUMIDIFIER ITSELF.

IMPLIED WARRANTIES OF MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE SHALL BE LIMITED IN DURATION TO THE AFORESAID FIVE YEAR PERIOD. RESEARCH PRODUCTS CORPORATION’S LIABILITY FOR INCIDENTAL OR CONSEQUENTIAL DAMAGES, OTHER THAN DAMAGES FOR PERSONAL INJURIES, RESULTING FROM ANY BREACH OF THE AFORESAID IMPLIED WARRANTIES OR THE ABOVE LIMITED WARRANTY IS EXPRESSLY EXCLUDED. THIS LIMITED WARRANTY IS VOID IF DEFECT(S) RESULT FROM FAILURE TO HAVE THIS UNIT INSTALLED BY A QUALIFIED HEATING AND AIR CONDITIONING CONTRACTOR. IF THE LIMITED WARRANTY IS VOID DUE TO FAILURE TO USE A QUALIFIED CONTRACTOR, ALL DISCLAIMERS OF IMPLIED WARRANTIES SHALL BE EFFECTIVE UPON INSTALLATION.

Some states do not allow limitations on how long an implied warranty lasts or the exclusion or limitation of incidental or consequential damages so the above exclusion or limitations may not apply to you. This warranty gives you specific legal rights and you may also have other rights which vary from state to state.

WARRANTY REGISTRATION

Visit us on-line at www.aprilaire.com to register your Aprilaire product. If you do not have on-line access, please mail a postcard with your

name, address, phone number, email address, product purchased, model number, date of purchase and dealer name and address to:

Research Products Corporation, P.O. Box 1467, Madison, WI 53701

Your Warranty Registration information will not be sold or shared outside of this company.

 

P.O. Box 1467 • Madison, WI 53701-1467 • Phone: 800/334-6011 • Fax: 608/257-4357www.aprilaire.com

10009844 2.12

Printed in U.S.A.

B2205732A

© 2012 Aprilaire – A division of Research Products Corporation

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Aprilaire 1750A-1770A owner manual Maintenance, Limited Warranty

1750A-1770A specifications

The Aprilaire 1750A and 1770A are advanced whole-home dehumidifiers designed to optimize indoor air quality by effectively controlling humidity levels. These models are particularly beneficial in regions with high humidity, helping to prevent mold growth, dust mites, and other allergens that thrive in damp conditions.

One of the standout features of the Aprilaire 1750A and 1770A is their capacity to manage significant moisture loads. The 1750A can remove up to 70 pints of moisture per day, while the 1770A is capable of handling up to 90 pints daily. This high capacity ensures that even larger homes or areas with severe humidity problems can achieve optimal moisture control.

Both models utilize a built-in humidistat, which allows for precise monitoring and regulation of humidity levels in the home. The digital display provides real-time feedback on current humidity conditions, enabling homeowners to make informed adjustments as necessary. The automatic operation mode enables the unit to adjust its performance according to the indoor humidity levels, ensuring energy efficiency.

The Aprilaire dehumidifiers are equipped with an advanced refrigeration system that maximizes moisture removal while consuming minimal energy. This energy-efficient design leads to cost savings over time, making them an economically wise choice for homeowners concerned with rising energy costs. The models also incorporate durable, corrosion-resistant components, ensuring longevity and decreased maintenance.

For installation flexibility, both the 1750A and 1770A can be integrated into existing HVAC systems or operated independently. Their compact design allows for versatile positioning, whether in a crawlspace, basement, or utility room. Additionally, they feature an integrated drain system to facilitate continuous water removal, alleviating the need for manual draining.

The Aprilaire 1750A and 1770A also emphasize user-friendly features, with easy-to-read controls and a filter change indicator that simplifies maintenance. With robust construction and dependable performance, these dehumidifiers are engineered for long-lasting use, providing comfort and peace of mind to homeowners in high-humidity areas.

Overall, the Aprilaire 1750A and 1770A exemplify cutting-edge technology and thoughtful design, making them ideal choices for anyone looking to improve their indoor climate through effective humidity control.