DH90 Whole House Dehumidifier
69-1950
with fresh air ventilation
Owner’s Manual
Dehumidification • Fresh Air Ventilation
Air Filtration • Energy Efficient
CAUTION:
Servicing the DH90 with its high pressure refrigerant system and high
voltage circuitry presents a health hazard which could result in death,
serious bodily injury, and/or property damage. Call your HVAC contractor.
CAUTION: ELECTRICAL SHOCK HAZARD
Electrical power must be present to perform some tests.
These tests should be performed by a qualified service technician.
Read and save these instructions.
® U.S. Registered Trademark.
Copyright © 2006 Honeywell International Inc.
All rights reserved.
Honeywell Whole House Dehumidifier
Owner’s Manual
Humidity Control
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M14694
Features and Benefits
The Honeywell DH90 Whole House Dehumidifier is designed to provide
ultimate indoor air quality. The DH90 provides the three key components
of healthy indoor air: fresh air ventilation, particulate filtration and
humidity control. At the heart of the DH90 is a high capacity, energy
efficient dehumidifier capable of removing over 90 pints (11.2 gallons) of
water per day (at 80°F, 60% relative humidity), while using only 6.2 amps
of electricity (120V). This allows the unit to maintain indoor humidity
levels below 50%, the level widely recognized as critical for controlling
mold and mildew.
• Dehumidification
• Fresh Air Ventilation Control
• Air Filtration
• Energy Efficient
Operating Instructions
How do I set the humidity level?
The DH90 dehumidifier is controlled by the Honeywell H8908
dehumidistat. The dehumidistat sets the humidity level within
the home much like a thermostat sets the temperature. Set the
dehumidistat to your comfort level. A typical setting of 30 should
keep the home comfortable for most. If the home is too dry, set the
dehumidistat to a higher level. If the
home is too damp, set the dehumidistat
to a lower level. There is also a chart
on the front of the dehumidistat that
lists recommended settings based on
the outdoor temperature.
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Fresh Air Ventilation with:
W8150 Fresh Air Ventilation Controller
The DH90 comes with the Honeywell W8150 fresh
air ventilation control. The W8150 along with the
optional Y8150 damper automatically controls the
ventilation based on the size of your home, number
of bedrooms and airflow of your HVAC system
based upon ASHRAE 62.2 Standard. Please see
the installation guide or talk to your installing
contractor on how to set your W8150.
Optional Y8150 Damper
The Y8150 damper provides optimal ventilation
control when wired with the W8150 fresh air
controller. Contact your installing contractor
to purchase and install the damper if your
Honeywell Whole House Dehumidifier was not
installed with one.
Owner’s Manual
Maintenance
The DH90 is equipped with a MERV 11 media filter. This filter should
be checked every three months. Operating the unit with a dirty filter
will reduce dehumidifier capacity and efficiency and may cause the
compressor to cycle off and on unnecessarily on the defrost control.
A MERV rating of 11 means the filter is 85% to 95% minimum efficient at
capturing a broad range of particles. For greatest filtration and efficiency
of the DH90, it is recommended the air filter be replaced every three
months with a MERV 11 rated filter.
Check drain outlet and hose once a year to clear drain of any debris.
CAUTION: EQUIPMENT DAMAGE HAZARD :
DO NOT operate the unit without the standard filter or with a less
effective filter than the standard MERV 11 filter. The heat exchange
coils inside the unit could become clogged and require disassembly
to clean.
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Honeywell Whole House Dehumidifier
Warranty Information
Honeywell warrants this product, excluding battery, to be
free from defects in the workmanship or materials, under
normal use and service, for a period of five (5) years from
the date of purchase by the consumer. If at any time during
the warranty period the product is determined to be defective or malfunctions, Honeywell shall repair or replace it (at
Honeywell's option).
If the product is defective, Contact your installing contractor
for return information.
This warranty does not cover removal or reinstallation costs.
This warranty shall not apply if it is shown by Honeywell
that the defect or malfunction was caused by damage
which occurred while the product was in the possession of
a consumer.
Honeywell's sole responsibility shall be to repair or replace
the product within the terms stated above. HONEYWELL
SHALL NOT BE LIABLE FOR ANY LOSS OR DAMAGE OF ANY
KIND, INCLUDING ANY INCIDENTAL OR CONSEQUENTIAL
DAMAGES RESULTING, DIRECTLY OR INDIRECTLY, FROM ANY
BREACH OF ANY WARRANTY, EXPRESS OR IMPLIED, OR ANY
OTHER FAILURE OF THIS PRODUCT. Some states do not allow the exclusion or limitation of incidental or consequential
damages, so this limitation may not apply to you.
THIS WARRANTY IS THE ONLY EXPRESS WARRANTY
HONEYWELL MAKES ON THIS PRODUCT. THE DURATION OF
ANY IMPLIED WARRANTIES, INCLUDING THE WARRANTIES
OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
PURPOSE, IS HEREBY LIMITED TO THE FIVE-YEAR DURATION
OF THIS WARRANTY. Some states do not allow limitations on
how long an implied warranty lasts, so the above limitation
may not apply to you.
This warranty gives you specific legal rights, and you may
have other rights which vary from state to state.
If you have any questions concerning this warranty, please
write Honeywell Customer Relations, 1985 Douglas Dr.,
Golden Valley, MN 55422 or call 1-800-468-1502. In
Canada, write Retail Products ON15-02H, Honeywell
Limited/Honeywell Limitée, 35 Dynamic Drive, Scarborough,
Ontario M1V 4Z9.
Automation and Control Solutions
Honeywell International Inc.
1985 Douglas Drive North
Golden Valley, MN 55422
http :// you rho me.honeywell.com
Honeywell Limited/Honeywell Limitée
35 Dynamic Drive
Scarborough, Ontario M1V 4Z9
Thank you for choosing a high performance
Honeywell Indoor Air Quality product
Printed in U.S.A. on recycled
paper containing at least 10%
post-consumer paper fibers.
® U.S. Registered Trademark.
© 2006 Honeywell International Inc.
69-1950 M.S. 05-06
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