Honeywell Home DR90A3000 User manual

DR90A3000 (1) or
DR120A3000 (1)
MERV 11 Filter (1)
Filter Door (2)
Installation Guide
Prestige IAQ Kit
DG115 IAQ Control
H8908 Manual Dehumidistat
VisionPRO™ Smart or VisionPRO™ RedLINK
H6062 HumidiPRO Digital Humidity Control
T10 Pro Smart
Tools required to install DR90A3000/DR120A3000
Dehumidifier
3/8” hex drive
Drill or duct cutting tool
Wire stripper/cutter
Scissors or utility knife
Standard screwdriver
T25 Torx screwdriver
Duct tape
10” round duct and starter collar
3/4” male NPT to drain line adaptor (1/2” Dia.
recommended)
1/2” diameter drain line (8’)
1/2” drain clamps (2)
Options
1/2” drain p-trap (may be required by local code)
Drain pan
Float switch or water sensor
A1
D
C
A2
B
E2
E3
E4
E5
E6
E1
(or)
PROFESSIONAL INSTALLATION GUIDE
GUIDE D’INSTALLATION PROFESSIONNELLE
GUÍA DE INSTALACIÓN PROFESIONAL
DR90A3000/DR120A3000
INCLUDED IN THIS BOX
D
A1A2
CB
OPTIONAL CONTROLS SOLD SEPARATELY
E
33-00298EFS-09
DR90A3000 (1) or
DR120A3000 (1)
MERV 11 Filter (1)
Filter Door (2)
Installation Guide
Prestige IAQ Kit
DG115 IAQ Control
H8908 Manual Dehumidistat
VisionPRO™ Smart or VisionPRO™ RedLINK
H6062 HumidiPRO Digital Humidity Control
T10 Pro Smart
Tools required to install DR90A3000/DR120A3000
Dehumidifier
3/8” hex drive
Drill or duct cutting tool
Wire stripper/cutter
Scissors or utility knife
Standard screwdriver
T25 Torx screwdriver
Duct tape
10” round duct and starter collar
3/4” male NPT to drain line adaptor (1/2” Dia.
recommended)
1/2” diameter drain line (8’)
1/2” drain clamps (2)
Options
1/2” drain p-trap (may be required by local code)
Drain pan
Float switch or water sensor
A1
D
C
A2
B
E2
E3
E4
E5
E6
E1
(or)
PROFESSIONAL INSTALLATION GUIDE
GUIDE D’INSTALLATION PROFESSIONNELLE
GUÍA DE INSTALACIÓN PROFESIONA L
DR90A3000/DR120A3000
INCLUDED IN THIS BOX
D
A1A2
CB
OPTIONAL CONTROLS SOLD SEPARATELY
E
E3E2E4E1E5E6
E3E2E4E1E5E6

Liste de vérification
pour l’installation
Inclus dans cette boîte
A1 Unité DR90A3000 (1) ou
A2 Unité DR120A3000 (1)
B Filtre MERV 11 (1)
CTrappe du filtre (2)
D Guide d’installation
Options de régulateurs (vendus
séparément)
E1 Nécessaire Prestige IAQ
E2 DG115
E3 Déshumidistat manuel H8908
E4 VisionPRO™ Smart ou
VisionPRO™ RedLINK
E5 Régulateur d’humidité
numérique HumidiPRO H6062
E6 T10 Pro Smart
Outils requis (non fournis)
• Tournevis cruciforme 3/8 po
• Outil de perçage ou de coupe
de conduit
• Dénudeur/coupe-fils
• Ciseaux ou couteau à lame
rétractable
• Tournevis normal
• Tournevis Torx T25
• Ruban adhésif
•Collet de conduit et de départ
rond de 10 po (25,4 cm)
• Fil de thermostat 5 bandes
calibre 1822
• Tuyau de vidange de 1/2 po de
dia. (8 pieds [2,4 m])
• Attaches de tuyau de vidange
de 1/2 po [1,3 cm] (2)
•Adaptateur mâle 3/4 po
NPT vers conduite de
vidange (diamètre de 1/2 po
recommandé)
Options
•SiphonP de vidange d’1/2 po
[1,3 cm] (peut-être requis par
le code local)
• Bac de récupération
• Flotteur ou capteur d’eau
Lista de verificación para
la instalación
Esta caja incluye
A1 DR90A3000 (1) o
A2 DR120A3000 (1)
B Filtro MERV 11 (1)
CPuerta del filtro (2)
D Guía de instalación
Opciones de control (se venden por
separado)
E1 Kit Prestige IAQ
E2 DG115
E3 Deshumidistato manual H8908
E4 VisionPRO™ Smart o VisionPRO™
RedLINK
E5 Control de humedad digital
HumidiPRO H6062
E6 T10 Pro Smart
Herramientas necesarias (no se
suministran)
• Impulsor de cabeza hexagonal
de 3/8 pulgadas (9.5 mm)
• Taladro o herramienta cortante
para conductos
• Alicates o cortadores de cables
• Tijera o navaja
• Destornillador estándar
• Destornillador Torx T25
• Cinta para conductos
•Conducto redondo de 10 pulgadas
(25,4 cm) y collar de arranque
• Cable de termostato calibre
18 a 22, de 5 bandas
• Línea de desagüe de 1/2 pulgada
(12,7 mm) de diámetro (8 pies [2,4 m])
• Abrazaderas de desagüe de
1/2 pulgada [12,7 mm] (2)
• NPT macho de 3/4 pulgada
(19,1 mm) para drenar el adaptador
de tubería (se recomienda un
diámetro de 1/2 pulgada [12,7 mm])
Opciones
•Trampa en P para desagüe de
1/2 pulgada [12,7 mm] (es posible
que el código local la exija)
•Bandeja para drenaje
• Interruptor del flotador o sensor de
agua
Installation Checklist
Included in This Box
A1 DR90A3000 (1) or
A2 DR120A3000 (1)
BMERV 11 Filter (1)
CFilter Door (2)
DInstallation Guide
Control Options (Sold separately)
E1 Prestige IAQ Kit
E2 DG115 IAQ control
E3 H8908 Manual Dehumidistat
E4 VisionPRO™ Smart or
VisionPRO™ RedLINK
E5 H6062 HumidiPRO Digital
Humidity Control
E6 T10 Pro Smart
Tools Required (Not Supplied)
• 3/8” hex drive
• Drill or duct cutting tool
• Wire stripper/cutter
• Scissors or utility knife
• Standard screwdriver
•T25 Torx screwdriver
• Duct tape
• 10” round duct and starter collar
•1822 gauge, 5 band thermostat
wire
• 1/2” diameter drain line (8’)
• 1/2” drain clamps (2)
•3/4” male NPT to drain
line adaptor (1/2” Dia.
recommended)
Options
•1/2” drain p-trap (may be
required by local code)
• Drain pan
• Float switch or water sensor
Warning: Installation must be performed
by a qualified service technician and must
comply with local codes.
Remove power to the device before
installing or servicing the device.
Failure to connect the device according to
these instructions may result in damage
to the device or the controls.
INSTALLATION INSTRUCTIONS
BEGIN ON PAGE 6
Avertissement : L’installation doit être
effectuée par un technicien d’entretien
qualifié et conformément aux codes locaux
en vigueur.
Couper l’alimentation vers l’appareil avant
d’installer ou de réparer cet appareil.
Un raccordement de cet appareil non
conforme à ces instructions peut entraîner
des dommages à l’appareil ou aux
commandes.
INSTRUCTIONS D’INSTALLATION
COMMENCENT À LA PAGE 6
Advertencia: La instalación la debe realizar
un técnico de reparación calificado y debe
cumplir con los códigos locales.
Retire la fuente de energía del dispositivo antes de
instalar o reparar el dispositivo.
Si no conecta el dispositivo según estas
instrucciones, el dispositivo o los controles se
pueden dañar.
LAS INSTRUCCIONES DE INSTALACIÓN
COMIENZAN EN LA PÁGINA 6

DR90A3000/DR120A3000
NEED HELP? For assistance with this product please visit http://customer.resideo.com
or call Customer Care toll-free at 18004681502.
Read and save these instructions.
® U.S. Registered Trademark. Patents pending. Copyright © 2020 Resideo Technologies, Inc. All rights reserved.
?
DR90A3000/DR120A3000 Dehumidification System 3300298EFS09 1
ABOUT YOUR DEHUMIDIFIER
About the DR90A3000/DR120A3000 .............2
Control Options ....................................3
DR90 Specifications ...............................4
DR120 Specifications..............................5
INSTALLATION
Install to Fit Your Application.......................6
Install to Fit Your Application (continued) ..........7
Plumbing ..........................................7
Terminal Description ...............................8
Wiring ...........................................8
Checkout .........................................11
MAINTENANCE
Cleaning ..........................................11
Technical Description .............................12
Troubleshooting ..................................12
DR90 Parts List ...................................14
DR120 Parts List..................................15
5Year Limited Warranty ..........................16
• The DR90A3000/DR120A3000 is designed to be installed indoors in a space that is protected from rain
and flooding.
• Install the unit with space to access the front panel for maintenance and service.
• Avoid directing the discharge air at people, or over the water in pool areas.
• If used near a pool or spa, be certain there is no chance the unit could fall into the water or be splashed,
and that it is plugged into a ground fault interrupt (GFI) outlet.
• To ensure quiet operation, do not place the device directly on the structural supports of the home.
• A drain pan must be placed under the unit if installed above a living area or above an area where water
leakage could cause damage.
1. Never operate a unit with a damaged power cord. If the power cord is damaged it must be
replaced by the manufacturer, its service agent, or similarly qualified person in order to
avoid a hazard.
2. The appliance is not intended for use by persons (including children) with reduced
physical, sensory, or mental capabilities, or lack of experience and knowledge, unless they
have been given supervision or instruction concerning use of the appliance by a person
responsible for their safety. Children should be supervised to ensure that they do not play
with the appliance.
!

About the DR90A3000/DR120A3000 Dehumidifier
The DR90A3000/DR120A3000 ensures the home is maintained at proper humidity levels through its high
performance and efficiency.
When indoor humidity exceeds 60%,
the home is more susceptible to mold
and mildew growth. DR90A3000/
DR120A3000 safeguards against
excessive humidity in the home year-
round.
*American Society of Heating, Refrigerating
and Air Conditioning Engineers (ASHRAE).
MCR24780
010203040506070809
0100
OPTIMUM
ZONE
BACTERIA
VIRUSES
FUNGI
MITES
RESPIRATORY
INFECTIONS
ALLERGIC RHINITIS
AND ASTHMA
CHEMICAL
INTERACTIONS
OZONE
PRODUCTION
ASHRAE RECOMMENDED WINTER DESIGN LEVEL
00159095808570756065505540453035202510150
001 4418312316210215110117014011019979593919
59 631031421811411
0117014011018969493919098878
09 221711311901601201001896959391909887868584838
58 801501201997959391909988
878685848382818089787
08 199888786868583828181808979787777767574737
57 0897978787777767675757474737372727
17079696
07 271717171717070707969686867676666656564646
WHAT THE AIR FEELS LIKE
HOW HOT THE HEAT-HUMIDITY COMBINATION MAKES IT FEEL.
EXAMPLE: AIR AT 90ºF WITH 50% RH FEELS LIKE 96ºF TO THE HUMAN BODY!
RELATIVE HUMIDITY (PERCENTAGE)
EXTREME DANGER
EXTREME CAUTION
CAUTION
M27328
DANGER
AIR TEMPERATURE
(DEGREES FAHRENHEIT)
SOURCE: TEMPERATURE - HUMIDIY INDEX WAS DERIVED BY R.G. STEADMAN, JOURNAL OF APPLIED METEOROLOGY, JULY 1979.
Benefits
• Removes up to 90 (DR90) or 120 (DR120) pints of water
per day from the indoor air
• Built-in fresh air supply
• Energy Star Rated
• Built-in transformer circuit breaker
Maintaining Ideal Humidity
Dew points and relative humidity (RH) affect the way your
body senses heat. Higher humidity levels cause the air
to feel much hotter than the actual temperature. When
maintained properly, your cooling equipment may not run as
much because dehumidified air feels cooler.
Ideal humidity is defined by industry experts* as being
between 4060% on an average annual basis.
MCR36852
DR120
DR90
DR90A3000/DR120A3000 Dehumidification System 33-00298EFS—09
2

Control Options
The DR90A3000/DR120A3000 may be used with one of the following external controls:
HumidiPRO Digital Control
• Manual dehumidification control
• Dehumidifier compressor protection
• RH% and outdoor temperature calibration
• Adjustable high and low range stops (1090%)
DG115 IAQ Digital Control
• Automatic adjustments maintain fresh air in home.
• Sensor for displaying outdoor temperature and humidity.
• Advanced ventilation programming includes economizing and extreme
condition shutdown.
• Maintenance and service reminders.
• Controls other indoor air quality equipment.
T10 Pro Smart Thermostat
• Controls both heating/cooling and ventilation.
• Ventilation programming for time of day or Ashrae standards.
• Optional ventilation lockouts for high/low temp or humidity conditions
using Internet weather when registered to the app.
Manual Dehumidistat and Automatic Ventilation Controls
• Manual humidity control with intuitive comfort settings.
• Automatic W8150 ventilation control to ASHRAE standard, or for
continuous operation.
Prestige™ IAQ Thermostat Kit
• Controls both heating/cooling and ventilation.
• Wireless sensor for displaying outdoor temperature and humidity.
• Advanced ventilation programming includes economizing and extreme
condition shutdown.
• Maintenance and service reminders.
• High definition color display.
• RedLINK™ Wireless technology
VisionPRO™ Smart or VisionPRO™ RedLINK Thermostat
• WiFi™ (TH8321WF1001) or RedLINK™ Wireless technology (TH8321R1001)
• Controls heating/cooling and ventilation.
• Display outdoor temperature and humidity.
• Ventilation programming for time of day or Ashrae standards.
• Optional ventilation lockouts for high/low temp or humidity conditions.
C7089R1013 wireless outdoor sensor for RedLINK model. Internet
weather for Smart model.
DR90A3000/DR120A3000 Dehumidification System 33-00298EFS—09 3

DR90 Specifications
Install DR90A3000 according to National Electric Codes.
Dimensions in inches and (mm):
Product weight: 86 lbs.
Shipping weight: 95 lbs.
Shipping dimensions: 25.2” H × 19.3” W × 35.8” L
Media Filter: MERV 11, 14” H × 17.5” W × 1.75” L
Drain connection: 3/4” threaded female NPT connection.
Duct connections: 10” round inlet and outlet. 6” supply inlet.
ABS plastic, compatible for connection to rigid or flexible
ducting with sheet metal screws and/or tape.
Cabinet: 20 ga
Insulation: R value 1
Compressor: Rotary, 7.3 KBTU
Refrigerant: R410A, 25 oz
Operating Temp Range (outside cabinet):
34ºF to 135ºF (1.1ºC to 57.2ºC)
Operating Humidity Range: 099% RH
Input ratings
• Electrical input voltage: 120 VAC,
60 Hz nominal
• Input current: 5.3 A
Output ratings
• Power transformer to R/C
terminals: 24 VAC, 0.85 A
• Energy Performance: 2.9 liters
(6.1 pints) per kilowatt hour (KWH)
Standards and approval body
requirements
• ETL Listed per UL 474 and
CSA C22.2 No 92
• ENERGY STAR rated.
DryBulb Temp Intake Humidity Capacity (Pints/Day)
80°F (26.7°C) 60% RH 90
70°F (21.1°C) 60% RH 65
60°F (15.6°C) 60% RH 47
Home Size
(square ft [m]) Dehumidifier Capacity Required to Maintain Desired Indoor RH*
60% RH Indoor
(pints/day) 50% RH Indoor (pints/day) 40% RH Indoor (pints/day)
2080 (193.2) 4954 5558 7178
2600 (241.5) 6168 6572 9097
3120 (289.9) 7582 7986 95110
* Based on extreme climates where outdoor humidity is 7090% RH. For less extreme climates, larger
homes can be adequately served with less capacity. Actual requirements may vary.
Airflow versus external static
pressure (01 in. [0 - 25.4 mm] water
pressure) with collars attached
0 in. (0 mm) 320 CFM
0.2 in. (5 mm) 280 CFM
0.4 in. (10 mm) 260 CFM
0.6 in. (15.2 mm) 215 CFM
3-1/8
(79)
25-7/8 (657)
3-1/8
(79)
19-7/8
(505)
14-3/4 (375)
M38506
DR90A3000/DR120A3000 Dehumidification System 33-00298EFS—09
4

DR120 Specifications
Install DR120A3000 according to National Electric Codes.
Dimensions in inches and (mm):
Product weight: 95 lbs.
Shipping weight: 104 lbs.
Shipping dimensions: 26” H × 19.3” W × 35.8” L
Media Filter: MERV 11, 14” H ×17.5” W ×1.75” L
Drain connection: 3/4” threaded female NPT connection.
Duct connections: 10” round inlet and outlet. 6” supply inlet.
ABS plastic, compatible for connection to rigid or flexible
ducting with sheet metal screws and/or tape.
Cabinet: 20 ga
Insulation: R value 1
Compressor: Rotary, 9.4 KBTU
Refrigerant: R410A, 30 oz
Operating Temp Range (outside cabinet):
34ºF to 135ºF (1.1ºC to 57.2ºC)
Operating Humidity Range: 099% RH
Input ratings
• Electrical input voltage: 120 VAC,
60 Hz nominal
• Input current: 7.3 A
Output ratings
• Power transformer to R/C
terminals: 24 VAC, 0.85 A
• Energy Performance: 2.9 liters
(6.1 pints) per kilowatt hour (KWH)
Standards and approval body
requirements
• ETL Listed per UL 474 and
CSA C22.2 No 92
• ENERGY STAR rated.
DryBulb Temp Intake Humidity Capacity (Pints/Day)
80°F (26.7°C) 60% RH 120
70°F (21.1°C) 60% RH 88
60°F (15.6°C) 60% RH 63
Home Size
(square ft [m]) Dehumidifier Capacity Required to Maintain Desired Indoor RH*
60% RH Indoor
(pints/day) 50% RH Indoor (pints/day) 40% RH Indoor (pints/day)
2080 (193.2) 4954 5558 7178
2600 (241.5) 6168 6572 9097
3120 (289.9) 7582 7986 95110
* Based on extreme climates where outdoor humidity is 7090% RH. For less extreme climates, larger
homes can be adequately served with less capacity. Actual requirements may vary.
Airflow versus external static pressure
(01 in. [0 - 25.4 mm] water pressure)
with collars attached
0 in. (0 mm) 400 CFM
0.2 in. (5 mm) 345 CFM
0.4 in. (10 mm) 295 CFM
0.6 in. (15.2 mm) 250 CFM
3-1/8
(79)
25-7/8 (657)
3-1/8
(79)
20-1/2
(521)
14-3/4 (375)
M38505
DR90A3000/DR120A3000 Dehumidification System 33-00298EFS—09 5

Install to Fit Your Application
Ideal when…
• Access to dedicated central return for
dehumidifier is available.
• Combined with A/C operation, requires
backdraft damper on the exhaust
port to minimize backdraft when
dehumidifier is not on but A/C is.
• (optional) Duct humidifier supply with
20% open gravity damper to provide
dry air to a specific area
Dedicated Return to Main Supply
A
MCR36852
DR120
DR90
SUPPLY
RETURN
AIR HANDLER
DEHUMIDIFIER
M36843
SEPARATE
RETURN
BACKDRAFT
DAMPER
(OPTIONAL)
GRAVITY DAMPER
DR90A3000/DR120A3000 Dehumidification System 33-00298EFS—09
6
Flex duct is recommended in connecting to the DR90A3000/DR120A3000 collars to reduce vibration noise.
M24745
Electrical requirements:
115 VAC outlet. Ground fault
interrupter (GFI) recommended.
Duct Sizing: Use minimum 10” diameter round for
duct lengths up to 25’ Minimum 12” required for
lengths longer than 25’ Duct branches from the main
inlet/exhaust should be minimum 10” round for 23
branches, and 12” round or larger for 4 branches or
more.
For the optional fresh air ventilator port, use 6” round,
insulated duct for lengths up to 50’
Use 8” round duct for more than 50’ of if more than
100 CFM is required.
Isolated Areas: Effective dehumidification may
require ducting to isolated or stagnant air flow areas.
Main Return to Main Supply
Ideal when…
• Running dehumidifier when not
running A/C.
• Requires damper on the exhaust port to
minimize backdraft when DR90A3000/
DR120A3000 is not on but A/C is.
• Access to a dedicated central return is
not possible.
• System fan should run with
dehumidifier for best results.
BSUPPLY
RETURN
AIR HANDLER
M36844
BACKDRAFT
DAMPER
DEHUMIDIFIER

Ideal when…
• The dehumidifier will not be ducted to a
forced air HVAC system.
Attach 3/4” male NPT drain nozzle.
Connect 1/2” drain tube to male connection drain outlet.
Secure drain tube to connector with hose clamp.
Run drain hose continuously downhill to an approved drain
or condensate pump.
The drain line must include a water trap to prevent air from
entering or exiting the dehumidifier.
Plumbing
Install to Fit Your Application (continued)
DR90A3000/DR120A3000 Dehumidification System 33-00298EFS—09 7
Dedicated Return to Dedicated Supply
Main Return to Main Return
Ideal when…
• Running DR90A3000/DR120A3000
with A/C operation.
• Minimizing discharge air temperature
(DAT) increase is preferred.
• Access to a dedicated return is not
possible.
C
D
SUPPLY
RETURN
AIR HANDLER
M36845
DEHUMIDIFIER
DEHUMIDIFIER
M36846
SEPARATE
RETURN
SUPPLY

Terminal Description
NOTE: The outer screws on the terminal block
secure the block to the chassis. They are not used
for wiring.
A wiring terminal block is located on the side panel
of the dehumidifier unit.
The six terminals for the terminal block (reading
from left to right in the photo) are:
FLOAT: External low voltage float switch or
water sensor (two terminals). Use
normally closed switch.
DHUM: Compressor and fan operation for
dehumidification
R: DR90/DR120 24V output
FAN: Fan activation only for ventilation
C: DR90/DR120 24V output
External 24V devices can be powered from R and C
terminals (20VA max.).
Wiring
Wire the DR90A3000/DR120A3000 according to the diagram that applies to your
desired operation.
DR90A3000/DR120A3000 Dehumidification System 33-00298EFS—09
8
Follow this diagram if using
the Prestige thermostat. DEHUMIDIFIER
DHUM
+
+
RFANC
FLOAT
IN THIS DIAGRAM, U1 CONTROLS THE DR90/DR120 FOR DEHUM AND
U2 CONTROLS THE DR90/DR120 FOR VENTILATION.
INSTALL A JUMPER ON EIM AS SHOWN ONLY WHEN USING THE
DR90/DR120 FOR VENTILATION IN ADDITION TO DEHUMIDIFICATION.
IF A FLOAT SWITCH IS NOT USED, THEN JUMPER THE FLOAT TERMINALS
.
1
2
12
3
3
EIM
U3
U3
U2
U2
U1
U1
M38418A
CAUTION: Low voltage hazard.
Can cause equipment damage.
Disconnect HVAC equipment before beginning installation.

Wiring (continued)
DR90A3000/DR120A3000 Dehumidification System 33-00298EFS—09 9
FOLLOW THIS DIAGRAM
FOR DUCTED OPERATION
WITH AN EXTERNAL
HUMIDITY CONTROL.
FOLLOW THIS DIAGRAM
IF USING THE HUMIDIPRO
DIGITAL HUMIDITY
CONTROLLER.
HVAC
MECHANICAL
DEHUMIDISTAT
THERMOSTAT
GYWRRc
GYWR C
M36854B
DRY
CONTACTS
DPDT RELAY,
2.6A
DHUM
+
+
RFANC
FLOAT
DEHUMIDIFIER
IF A FLOAT SWITCH IS NOT USED, THEN JUMPER THE FLOAT TERMINALS.
1
1
IF A FLOAT SWITCH IS NOT USED, THEN JUMPER THE FLOAT TERMINALS.
1
1
HVAC
MECHANICAL
DEHUMIDISTAT
THERMOSTAT
GY
W
RRc
GYWR C
M36855A
DRY
CONTACTS
DPDT
RELAY,
2.6A
EARD6TZ
AT120
R
C
DAMPER
AUX
REMOTE
W8150A
G
R
C
C
W
G
DHUM
+
+
RFANC
FLOAT
DEHUMIDIFIER
M37492A
C
R
U
U
S
S
24 VAC
(CONSTANT)
RFLOAT DHUM FANC
IF A FLOAT SWITCH IS NOT USED, THEN JUMPER
T
HE FLOAT TERMINALS.
1
1
FOLLOW THIS
DIAGRAM FOR DUCTED
OPERATION WITH
EXTERNAL HUMIDITY
AND VENTILATION
CONTROL.

Wiring (continued)
Follow this diagram if using DR90A3000/
DR120A3000 with a powered
dehumidistat such as the DG115 IAQ
control (DG115EZIQ).
DR90A3000/DR120A3000 Dehumidification System 33-00298EFS—09
10
HVAC
THERMOSTAT
GYWRRc
M36856A
IF A THERMOSTAT OTHER THAN A TH5110, TH5220, TH5320, TH6110, TH6220, TH6320,
TH8110, TH8320, OR TH8321 IS USED, A RELAY MAY BE REQUIRED TO ISOLATE THE G WIRE.
PROGRAM ISU SETTING 60 TO Ø TO FORCE SYSTEM FAN ON WITH DEHUMIDIFICATION CALL.
IF A FLOAT SWITCH IS NOT USED, THEN JUMPER THE FLOAT TERMINALS.
C
R
C
W
Y
G
R
C
SENSOR
SENSOR
SWITCH
W
G
VENT
VENT
DEHUM
DEHUM
HUM
HUM
OUTDOOR
SENSOR
(PROVIDED)
EARD6TZ
TrueIAQ
1
1
2
2
DHUM
+
+
RFANC
FLOAT
3
3
DEHUMIDIFIER

Cleaning
Apply power to DR90A3000/DR120A3000. Turn the humidity control to a low RH% level to initiate a
dehumidification call. Confirm that the DR90A3000/DR120A3000 compressor and fan turn on. The furnace
blower will also turn on to circulate air. This will take up to two minutes. Be sure to turn the control to the
desired RH% or to Off when checkout is complete.
If using for ventilation, initiate a call for ventilation. Confirm that the DR90A3000/DR120A3000 fan turned
on, but that the compressor remained off.
Checkout
DR90A3000/DR120A3000 Dehumidification System 33-00298EFS—09 11
On an annual basis, perform the following maintenance requirement to ensure the dehumidifier runs at peak
efficiency.
Unplug
DR90A3000/
DR120A3000
before beginning
service. Remove
the magnetic
filter door.
Remove filter
and replace
with new filter.
When service is complete, initiate a
call for dehumidification and check
that the compressor and fan activate.
If your thermostat has maintenance
reminders, reset those.
Check the drain connection and drain
line to ensure it is clear of debris and
sludge. Ensure all hose connections
are secure once maintenance of the
drain lines is complete.
1 2
34

Troubleshooting videos are available on the Resideo Pro YouTube channel playlist.
Problem Recommended Troubleshooting Steps
No dehumidification. Neither
fan nor compressor run and the
ventilation timer is OFF.
1. Unit unplugged or no power to outlet.
2. Humidity control set too high or defective.
3. Loose connection in internal or control wiring.
4. Defective compressor relay.
5. Defective control transformer.
6. Optional Condensate Pump Safety Switch open.
No dehumidification. Compressor
does not run but fan runs when
there is a call for dehumidification
and the ventilation control is OFF.
1. Defective compressor run capacitor.
2. Bad connection in compressor circuit.
3. Defective compressor overload.
4. Defective compressor.
5. Defrost thermostat open.
6. Optional Condensate Pump Safety Switch open.
Fan runs when there is a call
for dehumidification and the
ventilation control is OFF, but the
compressor cycles on and off too
frequently.
1. Low ambient temperature and/or humidity causing unit to cycle
through defrost mode.
2. Defective compressor overload.
3. Defective compressor.
4. Defrost thermostat defective.
5. Dirty air filter(s) or airflow restricted.
6. Low refrigerant charge, causing defrost control to cycle.
7. Bad connection in compressor circuit. Fan does not run with
fan switch in either position.
Troubleshooting
CAUTION: Servicing the DR65A3000 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. Service should only be performed by a qualified service technician.
DR90A3000/DR120A3000 Dehumidification System 33-00298EFS—09
12
Technical Description
DR90A3000/DR120A3000 uses a refrigeration system
similar to an air conditioner to remove heat and
moisture from incoming air and add heat to the air that
is discharged. Hot, high-pressure refrigerant gas is
routed from the compressor to the condenser coil. The
refrigerant is cooled and condensed by giving up its
heat to the air that is about to be discharged from the
unit. The refrigerant liquid then passes through a filter
drier and capillary tubing which causes the refrigerant
pressure and temperature to drop. It next enters the
evaporator coil where it absorbs heat from the incoming
air and evaporates. The evaporator operates in a flooded
condition, which means that all the evaporator tubes
contain liquid refrigerant during normal operation. A
flooded evaporator should maintain nearly constant
pressure and temperature across the entire coil, from
inlet to outlet.
CONDENSER
EVAPORATOR
CAPILLARY
TUBES
ACCUMULATOR
COMPRESSOR
STRAINER/FILTER
DRIER
M27404

Problem Recommended Troubleshooting Steps
Fan does not run
with ventilation
activated.
Compressor runs
briefly but cycles on
& off with humidity
control turned to
ON.
1. Loose connection in fan circuit.
2. Obstruction prevents fan rotation.
3. Defective fan.
4. Defective fan relay.
5. Defective fan capacitor.
Evaporator
coil frosted
continuously, low
de-humidifying
capacity.
1. Defrost thermostat loose or defective.
2. Low refrigerant charge.
3. Dirty air filter(s) or airflow restricted.
Unit not providing
ventilation. 1. Check control wire connections (check connections at fresh air damper also).
2. Defective fresh air damper.
3. Dirty air intake. Clean outside intake hood.
Unit removes some
water, but not as
much as expected.
1. Air temperature and/or humidity have dropped.
2. Humidity meter and or thermometer used are out of calibration.
3. Unit has entered defrost cycle.
4. Dirty air filter.
5. Defective defrost thermostat.
6. Low refrigerant charge.
7. Air leak such as loose cover or ducting leaks.
8. Defective compressor.
9. Restrictive ducting.
10.Optional Condensate Pump Safety Switch open.
Unit Test to
determine problem: 1. Detach field control wiring connections from main unit.
2. Connect the R and FAN contacts from the main unit together; only the impeller
fan should run. Disconnect the wires.
3. Connect the R and DHUM contacts from the main unit together; the compressor
and impeller fan should run.
4. If these tests work, the main unit is working properly. You should check the
control panel and field control wiring for problems next.
5. Remove the control panel from the mounting box and detach it from the field
installed control wiring. Connect the blue, yellow, and green wires from the
control panel directly to the corresponding colored pigtails on the main unit.
Leave the violet, white, and red wires disconnected!
6. Turn on the humidity control. The compressor and impeller fan should run.
7. If these tests work, the problem is most likely in the field control wiring.
DR90A3000/DR120A3000 Dehumidification System 33-00298EFS—09 13
Troubleshooting (continued)

DR90/DR120 Parts List
DR90A3000/DR120A3000 Dehumidification System 33-00298EFS—09
14
Figure Reference Base and Accessory Parts Part Number
1Dehumidifier DR90A3000/U
1Dehumidifier DR120A3000
2Motorized Ventilation Damper EARD6TZ
3Bypass Damper CPRD10
4 Filter 50070171002
5Replaceable Fuse T2.5A L 250V (NOT SOLD BY RESIDEO)
M36841
For reference only.
1
23
4

DR90A3000/DR120A3000 Dehumidification System 33-00298EFS—09 15
5
FLOAT
FLOAT
DE
HUM
R
FAN
C
TRANSFORMER
COMCOM
FUSE
24V
FAN RELAY
WRISTOR
COMPRESSOR
RELAY DEFROST
SWITCH
COMPRESSOR
CAPACITOR
COMPRESSOR
FAN
FAN
CAPACITOR
M38507

Resideo Technologies Inc.
1985 Douglas Drive North, Golden Valley, MN 55422
1-800-468-1502
33-00298EFS—09 M.S. Rev. 09-20 | Printed in United States
www.resideo.com
© 2020 Resideo Technologies, Inc. All rights reserved.
The Honeywell Home trademark is used under license from Honeywell International, Inc. This product is manufactured by Resideo Technologies, Inc. and its affiliates.
Tous droits réservés. La marque de commerce Honeywell Home est utilisée avec l’autorisation d’Honeywell International, Inc.
Ce produit est fabriqué par Resideo Technologies, Inc. et ses sociétés affiliées.
Todos los derechos reservados. La marca comercial Honeywell Home se utiliza bajo licencia de Honeywell International, Inc.
Este producto es fabricado por Resideo Technologies, Inc. y sus afiliados.
Resideo warrants this product to be free from defects in workmanship or materials, under normal use and service, for
a period of five (5) years from the date of first purchase by the original purchaser. If at any time during the warranty
period the product is determined to be defective due to workmanship or materials, Resideo shall repair or replace it
(at Resideo’s option).
If the product is defective,
(i) return it, with a bill of sale or other dated proof of purchase, to the place from which you purchased it; or
(ii) call Resideo Customer Care at 18004681502. Customer Care will make the determination whether the product
should be returned to the following address: Resideo Return Goods, 1985 Douglas Dr. N., Golden Valley, MN 55422,
or whether a replacement product can be sent to you.
This warranty does not cover removal or reinstallation costs. This warranty shall not apply if it is shown by Resideo
that the defect was caused by damage which occurred while the product was in the possession of a consumer.
Resideo’s sole responsibility shall be to repair or replace the product within the terms stated above. RESIDEO 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 RESIDEO 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 Resideo Customer Care, 1985 Douglas Dr, Golden Valley, MN
55422 or call 18004681502.
The product should not be disposed of with other household waste. Check for the nearest authorized collection
centers or authorized recyclers. The correct disposal of end-of-life equipment will help prevent potential negative
consequences for the environment and human health.
5Year Limited Warranty

DR90A3000/DR120A3000
BESOIN D’AIDE? Pour obtenir de l’aide sur ce produit, prière de visiter le site
http://customer.resideo.com ou d’appeler le service d’assistance à la clientèle
au 1-800-468-1502.
Lire et conserver ces instructions.
® Marque de commerce déposée aux États-Unis. Brevets en instance. Copyright © 2020 Resideo Technologies, Inc. Tous droits réservés.
Système de déshumidification DR90A3000 33-00298EFS—09 1
?
À PROPOS DU NOUVEAU DÉSHUMIDIFICATEUR
À propos du déshumidificateur
DR90A3000/DR120A3000 ........................2
Options de régulateurs.............................3
DR90 Spécifications ...............................4
DR120 Spécifications..............................5
INSTALLATION
Installation en fonction de l’application ............6
Raccordement .....................................7
Description des bornes ............................8
Câblage ...........................................8
Vérification........................................
11
ENTRETIEN
Nettoyage.........................................11
Description technique ............................12
Dépannage .......................................12
Liste des pièces DR90 ............................14
Liste des pièces DR120 ...........................15
Garantie limitée de 5 ans..........................16
• Le modèle DR90A3000 est destiné à être installé à l’intérieur dans un lieu protégé de la pluie et des
inondations.
• Installer l’unité en assurant le dégagement nécessaire pour l’accès au panneau pour la maintenance et
l’entretien.
• Éviter de diriger l’air d’évacuation vers les personnes ou sur l’eau des piscines.
• Si le produit est utilisé près d’une piscine ou d’un spa, veiller à garantir que l’unité ne peut pas tomber
dans l’eau ou être éclaboussée, et qu’elle est raccordée à un disjoncteur de fuite à la terre.
• Pour garantir un fonctionnement silencieux, ne pas placer l’unité directement sur les supports de
structure du bâtiment.
• Un bac de récupération doit être placé sous l’unité si elle est installée au-dessus d’une zone habitée ou
d’une zone où une fuite d’eau pourrait causer des dommages.
1. Ne jamais faire fonctionner l’appareil avec un cordon d’alimentation endommagé. Si le
cordon d’alimentation est endommagé, il doit être remplacé par le fabricant, son agent du
service, ou une personne qualifiée afin d’éviter les situations dangereuses.
2. Cet appareil n’est pas conçu pour une utilisation par des personnes (incluant les
enfants) ayant des capacités physiques, sensorielles ou mentales réduites, ou manquant
d’expérience et de connaissance à moins d’avoir reçu la supervision ou les instructions
concernant l’utilisation de l’appareil par une personne responsable de leur sécurité. Les
enfants devraient être supervisés pour s’assurer qu’ils ne jouent pas avec l’appareil.
!

À propos du déshumidificateur DR90A3000/DR120A3000
Le DR90A3000/DR120A3000 permet de maintenir les niveaux d’humidité adéquats dans toute la maison
grâce à sa haute performance et son efficacité.
Lorsque l’humidité intérieure
dépasse 60 %, l’habitation est plus
susceptible à la moisissure. L’unité
DR90A3000/DR120A3000 protège
de l’humidité excessive dans la
maison tout au long de l’année.
* Société américaine des ingénieurs en
chauffage, refroidissement et climatisation
(ASHRAE).
MFCR24780
010203040506070809
01
00
ZONE
OPTIMALE
BACTÉRIES
VIRUS
CHAMPIGNONS
ACARIENS
INFECTIONS
RESPIRATOIRES
RHINITES ALLERGIQUES
ET ASTHME
INTERACTIONS
CHIMIQUES
PRODUCTION
D’OZONE
TAUX D’HUMIDITÉ TYPE EN HIVER
RECOMMANDÉ PAR L’ASHRAE
00159095808570756065505540453035202510150
001 4418312316210215110117014011019979593919
59 631031421811411
0117014011018969493919098878
09 221711311901601201001896959391909887868584838
58 801501201997959391909988
878685848382818089787
08 199888786868583828181808979787777767574737
57 0897978787777767675757474737372727
17079696
07 271717171717070707969686867676666656564646
NOTRE PERCEPTION DE LA TEMP
É
RATURE DE L’AIR
NOTRE PERCEPTION DE LA CHALEUR COMBINÉE À L’HUMIDITÉ
EXEMPLE : À 90 °F ET 50 % D’HUMIDITÉ RELATIVE, LA TEMPÉRATURE PERÇUE PAR NOTRE CORPS ATTEINT 96 °F!
HUMIDITÉ RELATIVE (POURCENTAGE)
DANGER EXTRÊME
PRUDENCE EXTRÊM
E
PRUDENCE
MF27328
DANGER
TEMP
É
RATURE DE L’AIR
(DEGRÉ FAHRENHEIT)
SOURCE : INDICE DE TEMPÉRATURE-HUMIDITÉ DÉRIVÉ PAR R.G. STEADMAN, JOURNAL OF APPLIED METEOROLOGY, JUILLET 1979.
Avantages
• Retire jusqu’à 90 chopines (DR90) ou 120 chopines
(DR120) d’eau par jour de l’air intérieur.
• Alimentation en air frais intégrée
• Certifié Energy Star
• Coupe-circuit du transformateur intégré
Maintien d’une humidité idéale
Les points de rosée et d’humidité relative (HR) affectent
la manière dont le corps ressent la chaleur. Des niveaux
d’humidité élevés causent une perception de chaleur
accrue par rapport à la température réelle. Lorsqu’il est bien
entretenu, l’équipement de refroidissement peut ne pas
tourner autant car l’air déshumidifié semble plus frais.
L’humidité idéale est définie par les experts de l’industrie* comme
se situant entre 40 et 60 % sur une base annuelle moyenne.
MCR36852
DR120
DR90
Système d’humidification DR90A3000/DR120A3000 33-00298EFS—09
2