CLEAN COMFORT DV090 User manual

DEHUMIDIFIER
IMPORTANT: READ AND SAVE THESE INSTRUCTIONS. THIS GUIDE TO BE LEFT WITH EQUIPMENT OWNER
i
WWW.CLEANCOMFORT.COM
IO-DV090 2/14
Clean Comfort DV090
DV090 VENTILATING
DEHUMIDIFIER
Installaon and Operaon Manual
The Clean Comfort™ DV090 dehumidier
performs mulple funcons in a compact
enclosure: high-capacity dehumidicaon,
fresh air venlaon, and parculate ltraon.
Dehumidication
The highly ecient DV090 dehumidier ulizes
refrigeraon to cool the incoming air stream
below its dew point. This cooled and drier air
is used to pre-cool the incoming air stream
resulng in increased overall eciency. Aer the
pre-cooling stage the processed air is reheated
by passing through the condenser coil.
Fresh Air Ventilation (Optional)
Fresh outdoor air may be ducted to the
dehumidier. This provides fresh air to dilute
indoor pollutants and replenish oxygen
content in the building. The amount of fresh
air venlaon can be regulated by a variety
of dampers and controls in order to provide
desired venlaon rates.
Air Filtration
The DV090 features air ltraon, using a
MERV-11 media lter, to improve indoor
air quality.

TABLE OF CONTENTS
IO-DV090 IO-DV090
WWW.CLEANCOMFORT.COM
2
*INSTALLATION DATE (MM/DD/YYYY) ( / / )
________________________________________________________________
MODEL#: ____________________________________________________
Serial #:______________________________________________________
*Ask Dealer to provide this informaon.
Our connuing commitment to quality products may
mean a change in specicaons without noce.
© 2014 DAIKIN NORTH AMERICA LLC
Houston, Texas • USA
www.cleancomfort.com
1-855-239-2665
Proprietary Notice
This document and the informaon disclosed herein
are proprietary data of Daikin North America LLC.
Neither this document nor the informaon contained
herein shall be reproduced, used, or disclosed to others
without the wrien authorizaon of Daikin North
America LLC except to the extent required for installa-
on or maintenance of recipient’s equipment.
Liability Notice
Daikin North America LLC does not accept any liability
for damage due to installaons of dehumidicaon
equipment installed by unqualied personnel or the
use of parts/components/equipment that are not
authorized or approved by Daikin.
Copyright Notice
Copyright 2014, Daikin North America LLC
All rights reserved.
INTRODUCTION .............................................. 1
SAFETY PRECAUTIONS ................................... 3
INTENDED APPLICATION ............................... 3
REGISTRATIONS .............................................. 3
OPTIONAL PARTS LIST ................................... 3
SPECIFICATIONS.............................................. 3
INSTALLATION ............................................... 3
Installaon Consideraons ........................................ 4
Power Accessibility .................................................. 4
Space ....................................................................... 4
Low Voltage Wiring ................................................. 4
Back-Dra Damper .................................................. 4
Support Structure and Suspension ......................... 4
Electrical Requirements .......................................... 4
Condensate (Water) Removal ................................. 5
Liing Condensate .................................................. 5
Condensate Pump Installaon (Oponal) ............... 5
DUCTING ......................................................... 6
Installing Duct Collars ................................................. 6
Ducng for Dehumidicaon ..................................... 6
Fresh Air/Supply Air ................................................... 8
Ducng for Fresh Air (Opon) .................................... 8
Fresh Air Venlaon ................................................... 9
Installaon in a Basement or Crawlspace with
an Exisng Forced Air HVAC System .......................... 9
Installaon in an Ac with an
Exisng Forced Air HVAC System ................................ 9
Installaon in a Home with
No Exisng Forced Air HVAC System ......................... 10
Ducng for High Eciency Filtraon ........................ 10
Quite Installaon ...................................................... 10
CONTROLS ..................................................... 10
Digital Dehumidier and Venlaon Control ........... 11
MAINTENANCE ............................................. 12
High Eciency Air Filter ........................................... 12
Impeller Fan Oiling ................................................... 12
Oponal Fresh Air Intake .......................................... 12
SERVICE ......................................................... 12
SERVICE PARTS LIST ...................................... 12
WIRING SCHEMATIC...................................... 12
Technical Descripon of
Dehumidier Operaon ........................................... 13
TROUBLESHOOTING .................................... 13
Refrigerant Charging ................................................ 14
Compressor/Capacitor Replacement ........................ 14
OPERATION ................................................... 15
Remote Controls ....................................................... 14
Humidity Control ...................................................... 15
Programmable Venlaon Timer ............................. 15
Motorized Venlaon Damper ................................. 15
CONDENSATE PUMP INSTALLATION........... 16
WARRANTY ................................................... 18

SAFETY PRECAUTIONS
IO-DV090 IO-DV090 WWW.CLEANCOMFORT.COM 3
Safety Precautions
Read the installaon, operaon and maintenance instruc-
ons carefully before installing and operang this device.
Proper adherence to these instrucons is essenal to
obtain maximum benet from your DV090 Venlang
Dehumidier.
READ AND SAVE THESE INSTRUCTIONS
i WARNING!
This symbol means important instrucons. Failure
to heed them can result in serious injury or death.
iCAUTION!
This symbol means important instrucons.
Failure to heed them can result in injury or
material property damage.
Intended Application for DV090
Dehumidier
For the ideal installaon, draw air from the central part
of the home and return it to isolated areas of the home
like the bedrooms, den, ulity room, or family room. The
ductwork of the exisng heang system can be used to
supply dehumidied air to the home.
Registrations
The Clean Comfort DV090 conforms to UL STD 474 and
CSA Standard C22.2 No.92.
Specications
Part Number: DV090
Blower: 245 CFM @ 0.0" WG
220 CFM @ 0.4" WG
Power: 710 Was @ 80°F/60% RH
Supply Voltage: 110-120 Volt - 1 Phase - 60 Hz
Current Draw: 6.7 Amps
Energy Factor: 2.5 L/kWhr
Operating Temp.: 56 °F (13 °C) Min, 95°F (35 °C) Max
Sized For: Up to 2200 Sq. Ft. - Typical
Performance at 80° F/60% RH:
Capacity 90 Pints/Day (43 L/Day)
Eciency: 5.3 pints/kWhr (2.5 L/kWhr)
Duct Connections:
6" Round Inlet; 10" Round Inlet;
10" Round Outlet
Air Filter:
Eciency: MERV-11
Standard 65% Ecient
ASHRAE Dust Spot Test
Size: 14" X 14" x1"
Power Cord: 8 . (2.4 m)
Drain Connection: 3/4" Threaded FNPT
Refrigerant Type R410a (Refer to manufacturers
label for more informaon)
Dimensions: Unit Shipping
Width: 15½" (39 cm) 18½" (47 cm)
Height: 21" (53 cm) 21½" (54.6 cm)
Length: 33½" (85 cm) 40" (102 cm)
Weight: 92 lbs (42 kg) 102 lbs (46 kg)
Installation
iCAUTION!
Prior to installaon of the DV090, the following
consideraons for selecng the locaon for this
equipment should be reviewed. The DV090 can
be installed in a variety of locaons to meet the
owner's needs, and integrate with exisng forced
air systems or exisng ductwork if desired.
The locaon choice is conngent on a variety of
requirements not limited to: ease of service,
controls access, drainage, ltraon, access to
power, fresh-air venlaon, water damage
prevenon and current regulatory codes
(ASHRAE, re, etc). Please address all of these
issues before you select the device's locaon.
Optional Parts List: DV090
Ventilating Dehumidier
Part No. Description
DVP-4034748 Digital Control
DVP-4034753 Digital Control with remote
DVP-4034733 14"x14"x1" MERV 11 lter for
DV090 dehumidier
DVP-4034737 6" Duct Damper, Motorized for
DV070, DV090 and DV155 dehumidiers
DVP-4034742 10" Backdra Gravity Damper for
DV090 and DV155 dehumidiers

INSTALLATION CONSIDERATIONS
IO-DV090 IO-DV090
WWW.CLEANCOMFORT.COM
4
Installation Considerations
Location
• This equipment is designed to be installed INDOORS IN
A SPACE THAT IS PROTECTED FROM RAIN
AND FLOODING.
• Install the unit with enough space to access one
of the side panels for maintenance and service.
• Avoid direcng 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, splashed and
that it is plugged into a GFCI (GROUND FAULT CIRCUIT
INTERRUPT) OUTLET.
• DO NOT use the unit as a bench or table.
• DO NOT place the unit directly on structural members.
• A drain pan MUST be placed under the unit if installed
above a living area or above an area where water leak-
age could cause damage.
• Locate the unit near the exisng HVAC system to mini-
mize the required ductwork for connecng it to the
exisng air handling system. The controls for the dehu-
midier are remote from the unit and must be located
in the space that is to be condioned. The controls are
low voltage (24 VAC) and should be connected to the
unit with low voltage thermostat cable.
• If fresh air venlaon is desired, thought should be giv-
en to the locaon for the fresh air ducng. A 6" round
insulated duct will have to be installed on the unit and
run to the outside of the home to bring in fresh air. Use
an 8" insulated round duct for lengths of more than 50
feet or if more than 100 CFM is needed. Consult local
codes for necessary distances from exhaust ports when
installing fresh air return.
Power Accessibility
Unit should be located in an area where the cord's length
(8') can easily reach a 115VAC electrical outlet with a
minimum of a 15 A circuit capacity.
Space
Locaon should have enough clearance to handle the
unit's overall dimensions as well as the necessary return/
supply ductwork to the unit. Allow a minimum 15" clear-
ance to the side of the unit to allow for lter removal and
replacement.
Low Voltage Wiring
Unit locaon should be in an area where eld wiring the
remote controls (low voltage) to the unit will
be possible.
Back-Draft Damper
It is recommended that a backdra damper be used
in the supply duct of the DV090, especially when con-
necng to the supply ducng system. The backdra
damper prevents supply air from counter owing through
the DV090 when it is not operang. The unit locaon
should be chosen to allow installaon of this accessory if
requested by the end user.
Support Structure and Suspension
Place the DV090 on supports to raise the base of the
unit 2.5” above the drain pan beneath it. Do not place
the DV090 directly on structural building members with-
out vibraon absorbers or unwanted noise may result.
The DV090 may be suspended with steel hanger straps
(plumbers tape) or a suitable alternave from structural
members, as long as the suspending assembly supports
the DV090's base in its enrety. Do not hang the DV090
from its cabinet. Remember to place a drain pan under
the unit if it is suspended above a nished area or above
an area where water leakage could cause damage.
Electrical Requirements
ICAUTION!
Do not all the yellow lead from the DV090 to contact
the red lead or white lead from the DV090 or the
transformer will be destroyed.
The Clean Comfort DV090 plugs into a common grounded
115VAC outlet. The device draws 6.7 Amps under normal
operang condions. If used in an area which may
become wet, a ground fault circuit interrupter (GFCI)
protected circuit is required. Please consult local electrical
codes for any further informaon.
The DV090 can be controlled by a variety of devices
including the Clean Comfort DVP-4034748 or
DVP-4034753 digital controls. The controls are to
be located remotely from the unit and located in the
space to be condioned. The controls are low voltage
(24 volt) and should be connected to the DV090 with
low voltage wire (thermostat or other appropriate).

CONDENSATE REMOVAL
IO-DV090 IO-DV090 WWW.CLEANCOMFORT.COM 5
Lifting Condensate
An oponal condensate pump may be installed if a
vercal li is required to dispose of the condensate.
The condensate pump can be ordered direct from
your dealer.
Condensate Pump Installation (optional)
A condensate pump can be installed on the condensate
drain line of the Clean Comfort DV090 dehumidier if
vercal li is required to dispose of the condensate.
Condensate is automacally pumped to a remote
locaon when the water level in the condensate pump's
reservoir rises to close the automac oat switch.
In the event the pump fails and water rises too high in
the reservoir a Safety Float Switch will become open.
The leads from this switch should be installed in series
with the yellow or blue eld wires to prevent the pump
from overowing. If the yellow wire is in series with the
Install the digital control in a central area of the home where
it will sense the relave humidity accurately.
ICAUTION!
Do not install the control where it may not accurately
sense the relave humidity such as near HVAC supply
registers, exterior doors, windows, water sources,
or on an outside wall.
The installer must supply the wiring between the DV090
and the control. Be sure to safely route the control
wiring to prevent damage during installaon
ICAUTION!
Do not cross wires when connecng the DV090 and the
control or damage to the transformer may result. The
remote controls of the DV090 are powered by a low
voltage circuit (24VAC) and must NEVER contact or be
connected to a high voltage circuit.
The control wires leaving the DV090 and the control are
numbered and color-coded to prevent confusion. Some of
the control wires leaving the DV090 may not be used with
certain control and should be le unconnected with wire
nuts taped onto the stripped ends for safety. Be sure to
consult the electrical schemac in this manual or inside
the access panel of the DV090 before making control
connecons.
Condensate (Water) Removal
The Clean Comfort DV090 dehumidier generates
condensate. Condensate drains by gravity via the drain
port. Install a 3/4" male NPT adapter to the drain pan.
It is necessary to assemble your own drain pipe assembly
ulizing 3/4" PVC pipe to route the condensate to a drain.
Pitch/grade of drain should be 1" per 10'.
Take care when installing drain pipe to drain port of
the DV090; Use an adjustable wrench to secure the
drain port.
Figure 1: Trapping of Condensate Drain Line
ICAUTION!
A trap in the drain line is required for the unit to drain
properly. Local codes may require a trap. Use care to keep
the pipe assembly as at to the oor as possible. Kinks
and/or humps will prevent proper drainage.
When installing the drain hose make sure the feet are
extended such that the dehumidier is 2 1/2" o the
ground. Then coil the drain hose under itself or posion
a spacer to li the hose 1" o the ground aer the hose
has touched the ground. This procedure will create a
trap that ensures your unit drains correctly. See the
diagram below for further visual claricaon.

DUCTING
Figure 2B
Note: If not using
venlaon damper,
do not remove
knock out.
IO-DV090 IO-DV090
WWW.CLEANCOMFORT.COM
6
Figure 3
Step 2. Aach the 10” diameter return duct collar using
six #8 screws provided.
Adjust damper to desired posion. Open (Fig 2G) or closed (Fig 2E)
Figure 2E
Figure 2G
Figure 2F
Fasten duct collar to cabinet using four #8 screws provided. (Fig 2F)
Note desired orientaon of damper control lever. (Fig 2E)
Remove knock out using side cuers. Discard
Figure 2D
Figure 2A: Aaching duct collars to the DV090
Step 1. Aach 6” diameter fresh air venlaon
damper. (if desired)
Safety Float Switch the DV090 and the dehumidier will
shut o. If the blue wire is in series with the Safety Float
Switch the compressor will turn o but the DV090 will
connue to venlate or circulate air as normal. Contact
your local electrician to install the safety oat switch
directly to the dehumidier.
For installaon guidelines, refer to the "Condensate Pump
Installaon" secon at the back of this manual.
Ducting
Installing Duct Collars
The DV090 comes supplied with 10” and 6” round inlet
collars and a 10” round exhaust collar. Follow instrucons
included with these collars.
Figure 2C

INSTALLING DUCT COLLARS
IO-DV090 IO-DV090 WWW.CLEANCOMFORT.COM 7
Aach three white plates
using three #8 screws
provided to create a 10" plug
Aach the 10" plug to rear
of the dehumidier using
six #8 screws
Aach the second 10" duct
collar as you did the rst.
Using six #8 screws provided.
90° Flow
Step 3. Choose desired orientaon for
10" diameter supply duct collar:
A. Straight through (180°) ow B. Upward, out of the top (90°) ow
Remove the 10" circular knock out from top panel
of dehumidier using side cuers.
-OR-
Recycle three plates and nine extra screws.
These are only used for 90° ow opon.
180° Flow
Aach the second 10" duct collar as you did the rst.
Use six #8 screws provided.
Ducting for Dehumidication
For the ideal installaon, draw air from the central part of
the home and return it to the isolated areas of the home
like the bedrooms, den, ulity room, or family room. Be
sure to ulize as many of these remote rooms as possible
and not just one locaon. The ductwork of the exisng
HVAC system can be used to supply air to the home. If
the exisng supply goes to isolated areas of the home,
discharge the supply from the DV090 into the supply duct
of the exisng HVAC system. If the exisng heang system
incorporates a central supply, installaon of a separate
supply duct from the DV090 to each isolated area is
recommended.

DUCTING
IO-DV090 IO-DV090
WWW.CLEANCOMFORT.COM
8
Ducting for Fresh Air (Optional)
Fresh air may be brought into the home by connecng an
insulated duct from outside the home to the 6" inlet of
the DV090 and turning on the fan switch or acvang the
humidity control. Acvate the venlaon mer on units
with the venlang and humidity control DVP-4034748
to bring in fresh air. Refer to the Controls secon of this
manual for programming instrucons of the venlaon
mer.
Advantages of this form of venlaon include:
1. Outside air is ltered before entering the building.
2. Outside air will be dehumidied before entering if the
DV090 is running in dehumidicaon mode.
3. Drawing air from outside and blowing inside aids in
slightly pressurizing the home. This helps prevent
dirty and humid air from entering the home else-
where. It also reduces the potenal for carcinogenic
radon gas to enter and provides a small amount of
make-up air for atmospheric combuson and exhaust
devices such as a clothes dryer, replace, furnace or
water heater.
4. Exhaust fans are recommended in the bath rooms
and kitchen.
In cold climates or areas where the outdoor dew point is
low at mes, venlaon can be used to dehumidify the
home, making the DV090 capable of year-round drying.
This is accomplished by bringing the dry, low dew point
air into the home during these mes. This approach is
oen more economical than running the dehumidier
to remove excess moisture from the home.
In cold climates, it is crical to adequately venlate to
reduce the indoor humidity to avoid moisture accumulat-
ing in the wall cavies. For example; in a house that
experiences condensaon on the interior surface of the
windows during the winter, increasing the amount of
venlaon will oen cure the problem.
An insulated 6" diameter duct is generally sucient to
provide up to 75 CFM of outside air. Large quanes
of outside air can impact the DV090's performance
posively or negavely, depending upon the inside and
outside air condions.
The outside air duct should be connected to the 6" round
collar on the front of the DV090. The amount of outside
air can be restricted by the blade damper in the 6" collar.
Fresh Air/Supply Air
ICAUTION!
DO NOT draw air directly from the kitchen, laundry,
or isolated basement. You may draw air from a
basement that is open to the home. All exible
ducng connected to the DV090 should be UL listed.
A short piece of exible ducng on ALL DV090 duct
connecons is recommended to reduce noise and
vibraon transmied to rigid ductwork in the structure.
Ducng the DV090 requires consideraon of the
following points:
Duct Sizing: For total duct lengths up to 25', use a
minimum 10" diameter round or equivalent rectangular
duct. For longer lengths, use a minimum 12" diameter
or equivalent duct. Grilles or diusers on the duct ends
must not excessively restrict airow.
Isolated Areas: Eecve dehumidicaon may require
that ducng be branched to isolated, stagnant air ow
areas. Use 8" or larger diameter branch ducng to each
of two or three areas, use 6" or larger to each of four or
more areas. Provisions must be made to provide airow
from supply locaons to central return locaon. Proper air
distribuon is important to ensure even humidity control
and heat distribuon throughout the home.
Connecting to existing HVAC systems: An oponal
10" gravity backdra damper is available to prevent re-
verse air ow through the DV090. If the DV090 is ducted
to the supply of an air handler, the backdra damper
should be placed in the DV090 supply duct. Venlaon
operaon is controlled by the digital control oered with
the DV090. These controls determine the me/frequency
that the unit introduces outside air into the HVAC
system. The amount of outside air can be restricted by
the blade damper in the 6" collar. Some control opons
require a 6" motorized damper be installed in the 6"
fresh air duct.
ICAUTION!
Do not connect with a stac pressure greater than
or equal to +.5 WG. Contact Technical Support at
1-855-239-2665 for addional details.

DUCTING
IO-DV090 IO-DV090 WWW.CLEANCOMFORT.COM 9
It is recommended that a new, separate return duct be
installed for the DV090 from a central area of the house.
If this is not possible, and if the exisng system has
mulple returns, select one to disconnect from the
exisng forced air system and use it for the dedicated
DV090 return. Always select a return from a central
locaon in the home in an area that is always open to
the rest of the home. Do not use a return from a room
that may have its door closed much of the me. If the
home in which the DV090 is to be installed has an
exisng forced air HVAC system, ulize the HVAC
system to make the DV090 installaon easier.
Basement Installation: Install a separate 10" return
to the DV090 in a central area of the home. Oponal:
Duct the supply from the DV090 to a 10" x 10" x 10"
tee/damper, adjusted to 20% open to the basement.
This allows the ability to discharge a variable amount of
dehumidied air into a basement that may not be well
served by the exisng duct system, especially during the
summer months. Duct the other side of the tee to the air
supply of the exisng HVAC system. A backdra damper
is required in the duct between the 10" tee and the
central supply duct to prevent air from being discharged
into the basement during central fan operaon. Connect
a duct from outside to the 6" collar of the DV090 if you
wish to provide venlaon air. See Figure 4.
Fresh Air Ventilation
Venlaon controls determine the me/frequency that
the unit introduces outside air into the structure.
The amount/frequency of venlaon should be based
on the size and occupancy of the residence. If you are
unsure of your venlaon air requirements or have need
for higher air ows, consult Technical Support by calling
1-855-239-2665.
Figure 5: Ac Installaon
Installation in a Basement or Crawlspace
with an Existing Forced Air HVAC System.
Crawlspace Installation: Install a separate return to
the DV090 in a central area of the home. Oponal: Duct
the supply from the DV090 to a 10" x 10" x 10" tee/damper
that is 20% open to the crawlspace if desired. Duct the
other side of the tee to the air supply of the exisng HVAC
system with a backdra damper. Connect an Insulated
duct from outside to the 6" collar of the DV090 if you wish
to provide oponal venlaon air. See Figure 4.
Installation in an Attic with an Existing Forced
Air HVAC System
ICAUTION!
ALWAYS install a catch pan with a drain or Safety Float
Switch for condensate under the DV090 in an ac
or condensate may damage the living space below.
The Safety Float Switch should be installed in series with
the eld wire that connects the blue (#5) lead from the
DV090 to the blue (#5) lead on the digital control. If over-
ow occurs, this Safety Float Switch opens the compressor
control circuit and stops water producon before the
catch pan overows. The DV090 will connue to venlate
or circulate air as normal, but will not dehumidify unl this
switch closes.
The preferred method of installaon is to create a separate
return for the DV090 in a central area of the structure. Duct
the supply of the DV090 to the air supply of the exisng
HVAC system. Connect an insulated duct from outside to
the 6" collar of the DV090 if you wish to provide fresh make-
up air. Adjust a damper in the duct to provide the desired air
ow. Using the digital control, program the unit to bring in
the desired amount of fresh air. See Figure 5.
Figure 4: Basement or crawlspace installaon.

CONTROLS
IO-DV090 IO-DV090
WWW.CLEANCOMFORT.COM
10
Installation in a Home with No Existing
Forced Air HVAC System
When installing the DV090 in a home that does not have
a forced-air HVAC system, a single return to the DV090
should be installed in central open area of the home.
DO NOT locate the return in a bathroom or a kitchen.
The supplies of the DV090 should be located in the
remote areas of the home such as bedrooms, den, etc.
Be sure to ulize as many of these remote rooms as
possible and not just one locaon. By ducng this way,
the air inside the enre home will circulate through the
DV090 to be ltered and dehumidied. Avoid discharging
all the air from the dehumidier in one locaon to prevent
heat buildup in that area. 6" diameter duct is recom-
mended for branches to the bedrooms, 8" diameter duct
is recommended for branches to larger areas. Connect an
insulated duct from outside to the 6" collar of the DV090
if you wish to provide venlaon. See Figure 6.
Figure 6: Installaon with no forced air HVAC system
Ducting for High Eciency Filtration
The lter included with the DV090 is a very ecient
MERV 11 media lter. This lter should be checked
every three months and changed every 6-12 months.
Quiet Installation
Consider compression vibraon and airow noise during
installaon. Use of ex duct and/or vibraon isolaon
materials during mounng and ducng will result in qui-
eter operaon. A length of exible ducng on all DV090
duct connecons is recommended to reduce noise and
vibraon transmied to rigid ductwork in the home.
Controls
The DV090 can be equipped with various accessories to
control its operaon. The Clean Comfort DVP-4034748
digital control is recommended. The DVP-4034748 allows
homeowners the ability to monitor and control relave
humidity levels in their home as well as provide proper
venlaon. This digital control is also oered with a
remote sensing opon (part number DVP-4034753) for
installaons where the preferred locaon for mounng
the digital control is not close to the area where humidity
control is needed.

CONTROLS
Dehumidifier
RED
YELLOW
BLUE
GREEN or BROWN
WHITE
Internal Connections
OPTIONAL
DAMPER
24 VAC
DMP COMP FAN
DVP-4034748
or
DVP-4034753
IO-DV090 IO-DV090 WWW.CLEANCOMFORT.COM 11
The DV090 dehumidier is controlled using ve,
color-coded wires:
Green (or brown) = Fan control
Blue = Dehumidicaon (fan and compressor) control
Red = 24VAC power transformer neutral side
(common with white)
White = 24VAC power transformer
neutral side (common with red)
Yellow = transformer high side
Figure 7: Wiring Connecon for DV090 Dehumidier and DVP-4034748
ICAUTION!
If an oponal damper is not used, do not connect the
white wire to the DVP-4034748 control or damage to
the transformer may result.
ICAUTION!
DO NOT allow the yellow lead from the unit to contact
the red lead or the white lead from the unit or damage
to the transformers will result.
A 40VA transformer is wired between the red/white lead
and the yellow leads of the DV090. This low voltage power
source powers the relay coils which control the fan and
compressor. This 24VAC transformer can also be used to
power HVAC accessories external to the dehumidier.
• To turn the dehumidier ON make
contact between yellow and blue wires.
• To turn the fan ON make contact between yellow and
green(or brown) wires.
• To power an HVAC accessory, connect the accessory to
the white (or red) wire and the yellow wire.

CONTROLS
IO-DV090 IO-DV090
WWW.CLEANCOMFORT.COM
12
Clean Comfort Dehumidier &
Ventilation System Control
When used with Clean Comfort Whole House Venlang
Dehumidiers, the DVP-4034748 and DVP-4034753
digital controls allow homeowners the ability to monitor
and control relave humidity levels in their home.
Digital control P/N: DVP-4034748
Digital control
(with remote) P/N: DVP-4034753
Operating Voltage: 24VAC
Max Current
DMP, COMP, FAN: 1 AMP each
Humidity Range/Accuracy: 10 – 95% RH, ± 5%
Humidity Range/Set Point: 35 – 70% RH
Auxiliary Relay Capacity: 5 Amps, 24VAC
Temp Range/Accuracy: 30°-90°F (-1°-32°C), 2%
Size: 4.95"L x 1.06"W x 4.19"H
(12.6 cm L x 2.7 cm W
x 10.6 cm H)
Major Operations
• Digital control of Relave Humidity (Digital Set-Point)
• Fan/Filter Operaon
• Programmable Venlaon Timer
• Large, easy-to-read backlit LCD display
• Easy interacon with air handler fan
(Interlock/Lockout)
• High Temperature Cut-Out
• Dryout Cycle Timer
• Auto Reboot
• Remote Sensor (DVP-4034753 model ONLY)
For Technical Support, please call 1-855-239-2665. Must
be a licensed HVAC contractor or authorized distributor
to install this product.

MAINTENANCE
IO-DV090 IO-DV090 WWW.CLEANCOMFORT.COM 13
Maintenance
For Homeowner - Routine Maintenance
Part No. Description
DVP-4034733 14"x14"x1" MERV 11 lter for
DV090 dehumidier
High Eciency Air Filter
The Clean Comfort Venlang Dehumidiers are
equipped with a MERV 11 media lter. This lter should
be checked every three months and changed every 6-12
months. Operang the unit with a dirty lter will reduce
dehumidier capacity and eciency and may cause the
compressor to cycle OFF and ON unnecessarily on the
defrost control.
ICAUTION!
DO NOT operate the DV090 dehumidier without the
MERV 11 lter or with a lter of lower performance
rang than MERV 11. The heat exchange coils inside
the unit could become clogged and require disassembly
to clean. Non-compliance with lter maintenance
guidelines (provided above) invalidates the product
warranty.
Service Parts List: Clean Comfort DV090
Ventilating Dehumidier
Part No. Description
DVP-4034804 Transformer, 120/24VAC, 40 VA
DVP-4034807 Defrost Control
Figure 8: Wiring Schemac for DV090
Wiring Schematic
IWARNING!
Servicing the DV090 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
for servicing or repair of this equipment.
To replace the lter, remove the lter door from the side of
the DV090 dehumidier by gently pulling it away from the
body of the unit.
Remove the lter by gently pulling straight out of the unit.
Insert new lter in the same manner, pushing it gently
straight into the unit. Replace lter door.
Impeller Fan Oiling
The impeller fan motor is factory lubricated for many
years of normal operaon, and no further oiling
is required.
Optional Fresh Air Intake
Check and clean the screen on the outdoor fresh air intake
port seasonally. The screen may become plugged during the
seasons when there are many parcles in the outdoor air.
Service
Warranty
A consumer warranty cercaon is included at the end of
the manual. Please read it before any repair is iniated. If a
warranty repair is required, call the installing contractor or
the factory at 1-855-239-2665 for warranty claim authori-
zaon and technical assistance.
To dehumidier control

TROUBLESHOOTING
IO-DV090 IO-DV090
WWW.CLEANCOMFORT.COM
14
Technical Description of
Dehumidier Operation
The DV090 uses a refrigeraon system similar to an air
condioner's to remove heat and moisture from incom-
ing air, and add heat to the supply air that is discharged
from the dehumidier. Hot, high-pressure refrigerant gas
is routed from the compressor to the condenser coil (See
Figure 9). The refrigerant is cooled and condensed by
giving up its heat to the supply air being discharged from
the unit. The refrigerant liquid then passes through a
strainer 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 ooded
condion, which means that all the evaporator tubes
contain liquid refrigerant during normal operaon. A
ooded evaporator should maintain nearly constant
pressure and temperature across the enre coil, from
inlet to outlet.
The mixture of gas and liquid refrigerant enters the
accumulator aer leaving the evaporator coil. The ac-
cumulator prevents any liquid refrigerant from reaching
the compressor. The compressor evacuates the cool
refrigerant gas from the accumulator and compresses
it to a high pressure and temperature to repeat
the process.
Troubleshooting
Neither fan nor compressor running.
Dehumidication is being called for. No fan call.
1. Unit unplugged or no power to outlet.
2. Humidity control set too high.
3. Loose connecon in internal or control wiring.
4. Defecve Compressor relay.
5. Defecve control transformer.
Compressor is not running. Dehumidication
is being called for. No fan call.
1. Defecve compressor run capacitor.
2. Loose connecon in compressor circuit.
3. Defecve compressor overload.
4. Defecve compressor.
5. Defrost thermostat open.
6. Defecve compressor relay
Compressor cycles on and o. Dehumidication
is being called for. No fan call.
1. Low ambient temperature and/or humidity causing
unit to cycle through defrost mode.
2. Defecve compressor overload.
3. Defecve compressor.
4. Defrost thermostat defecve.
5. Dirty air lter(s) or air ow restricted.
6. Defecve fan relay.
Fan is not running. Dehumidication or
fan is being called for.
1. Loose connecon in fan circuit.
2. Obstrucon prevents fan impeller rotaon.
3. Defecve fan.
4. Defecve fan relay.
Low dehumidication capacity (evaporator is
frosted continuously). Dehumidication is
being called for.
1. Defrost thermostat loose or defecve.
2. Low refrigerant charge.
3. Dirty air lter(s) or air ow restricted.
4. Excessively restricve ducng connected to unit.
Figure 9: Refrigeraon System of DV090 Dehumidier

TROUBLESHOOTING/OPERATION
IO-DV090 IO-DV090 WWW.CLEANCOMFORT.COM 15
Troubleshooting (continued)
No ventilation. Ventilation is being called for.
1. Loose connecon in venlaon control circuit.
2. Loose connecon in damper power circuit.
3. Defecve fresh air damper.
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 calibraon.
3. Unit has entered defrost cycle.
4. Air lter dirty.
5. Defecve defrost thermostat.
6. Low refrigerant charge.
7. Air leak such as loose cover or ducng leaks.
8. Defecve compressor.
9. Restricve ducng.
10. Oponal Condensate Pump Safety Float Switch open.
IWARNING!
ELECTRICAL SHOCK HAZARD: Electrical power
must be present to perform some tests. These tests
should be performed by a qualied service person.
Unit Test to Determine Problem:
1. Detach eld control wiring connecons from main unit.
2. Connect the yellow and brown pigtails from the main
unit together; only the fan should run. Disconnect the
wires.
3. Connect the yellow and blue pigtails from the main unit
together; the compressor and fan should run.
4. If these tests work, the main unit is working properly.
You should check the control panel and eld control
wiring for problems next.
NOTE: Refrigeration systems should ONLY
be serviced by a qualied service technician.
If you need additional information, consult
Technical Support at 1-855-239-2665.
Refrigerant Charging
If the refrigerant charge is lost due to service or a leak,
a new charge must be accurately weighed in. If any of
the old charge is le in the system, it must be recovered
before weighing in the new charge. Refer to the unit
nameplate for the correct charge weight and
refrigerant type.
Compressor/Capacitor Replacement
This compressor is equipped with a two terminal external
overload and a run capacitor. The compressor is controlled
by a dedicated relay.
Remote Controls
The DV090 dehumidier is controlled by digital controls
that are remote from the unit. You may or may not have
the devices listed below depending on the model of the
control you purchased. If the dehumidier fails to oper-
ate as desired, always check the sengs of the controls
to insure that they are correct. Check that the controls
are receiving 24VAC from the dehumidier. Check the
connecons between the dehumidier, the control,
and the eld control wiring.
5. Remove the control panel from the mounng box
and detach it from the eld 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 fan switch; the fan should run. Turn o
the fan switch.
7. Turn on the humidity control; the compressor and
fan should run.
8. If these tests work, the problem is most likely in the
eld control wiring.
IWARNING!
ELECTRICAL SHOCK HAZARD: Electrical power
must be present to perform some tests. These tests
should be performed by a qualied service person.

OPERATION
IO-DV090 IO-DV090
WWW.CLEANCOMFORT.COM
16
Humidity Control
The humidity control is an adjustable switch that closes
when the relave humidity of the air in which it is located
rises to the screen set point. The DV090 dehumidier is
equipped with an automac defrost mechanism. If the
dehumidier operates in condions that develop frost
on the evaporator, it will sense the frost build-up and
automacally defrost the evaporator. The dehumidier
may not appear to be operang correctly during the
defrost sequence, but once the defrost sequence is
completed, the unit will resume dehumidifying.
Programmable Ventilation Timer –
DVP-4034748 / DVP-4034753
The venlaon mer controls the impeller fan and the
motorized fresh air damper. When the venlaon mer
is acvated, the dehumidier will circulate the indoor
air, and bring in fresh air from outside. The venlaon
mer should be set for the required venlaon of the
residence. The home should be venlated with fresh air
as suggested by applicable codes and standards.If the
dehumidier fails to venlate as expected, check that the
me on the mer is correct. Also check the programs on
the mer to be sure that the mer is calling for venla-
on at the correct mes
Motorized Ventilation Damper
The motorized venlaon damper is controlled by a eld-
supplied venlaon mer, such as the Clean Comfort
DVP-4034748 control. The damper will open when the
venlaon mer is acvated to allow fresh air into the
home through the 6" diameter fresh air inlet supply duct.
The motorized venlaon damper will remain closed when
the venlaon mer is not acvated to prevent over-venlang
the home when the unit is dehumidifying or recirculang
the indoor air. The motorized venlaon damper operates
on 24VAC from the control circuit.
ICAUTION!
DO NOT connect high voltage to the damper motor or
damage to the motor may result.
ICAUTION!
DO NOT force the blade of the damper by hand or
damage to the damper motor may result. The damper
opens in one direcon only. The damper rotates very
slowly; allow sucient me for the damper to cycle.
The damper opens in one direcon only. It rotates very
slowly; be sure to allow sucient me for the damper to
cycle. The damper will take approximately one minute to
cycle from closed to open or from open to closed.
If the motorized venlaon damper fails to operate:
1. Check that the wiring is correct and that voltage is
present at the damper motor.
2. Check for any obstrucon inside the damper. If the
motorized venlaon damper fails to operate aer
performing these checks, it must be replaced.

CONDENSATE PUMP INSTALLATION
IO-DV090 IO-DV090 WWW.CLEANCOMFORT.COM 17
Step 1. Lay the DV090 unit on it's side. Make sure
the lter door is facing upward. Note the locaons of
the four leveling feet and the hose adaptor.
Step 2. Parally screw in the leveling feet at the four
locaons.
Step 3. Hand ghten the hose adaptor to get the
threads started. Turn clockwise.
Step 4. Use adjustable pliers to nish ghtening.
Fully seat the drain adaptor so that no leaks occur.
Step 5. Install a suciently long drain hose to connect
the drain adaptor of the dehumidier to the condensate
pump reservoir using eld-supplied ngs.
Step 6. Aach a drain hose to the condensate pump
and route it to a oor drain.
Step 7. Use a level to ensure the dehumidier is
level before powering up the dehumidier and the
condensate pump.
Step 8. Plug in the condensate pump and the
assembly is completed.
Annual inspection of a properly
functioning pump is necessary.
CONDENSATE PUMP INSTALLATION
A condensate pump must be installed with leveling feet.
Do not use casters. Depending on the specic model you have purchased,
the base of the humidier may look dierent than shown in the pictures below.

WARRANTY
IO-DV090 IO-DV090
WWW.CLEANCOMFORT.COM
18
Limited Warranty
Daikin North America LLC (“Daikin”) warrants as follows: the
Clean Comfort dehumidier (“Product”) will be free of material
defects in workmanship or materials for a period of ve (5)
years following the date of purchase of such Product by the
original consumer purchaser (“Customer”). Some states and
provinces do not allow limitaon of warranty coverage to the
original consumer, so the above limitaon may not apply to you.
Limitation of Liability. Customer’s sole and exclusive remedy
under the above limited warranty, and any implied warranes,
and Daikin’s enre liability thereunder, shall be for Daikin to
provide a repaired or replacement Product or component of
the Product (“Component(s)”), at the sole opon of Daikin.
Refrigerant, piping, supplies, transportaon costs, labor costs
incurred in deinstalling any defecve Product or Components,
or installing the repaired or replacement Product or
Components, are not included. This disclaimer and exclusion
shall apply even if the express warranty herein fails of
its essenal purpose. Customer acknowledges that no
representave of Daikin or any of its aliates or resellers is
authorized to make any representaon or warranty on behalf
of Daikin or any of its aliates or resellers that is not in this
warranty. IN NO EVENT SHALL DAIKIN, IN CONNECTION WITH
THE DESIGN, SALE, INSTALLATION, USE, REPAIR, REPLACEMENT
OR PERFORMANCE OF ANY PRODUCT OR COMPONENTS,
OR WRITTEN MATERIAL PROVIDED THEREWITH, BE LIABLE,
WHETHER FOR BREACH OF WARRANTY OR OTHER CONTRACT
BREACH, NEGLIGENCE OR OTHER TORT, OR ON ANY OTHER
LEGAL THEORY, FOR ANY SPECIAL, INDIRECT, COLLATERAL OR
CONSEQUENTIAL DAMAGES OF ANY KIND. Some states and
provinces do not allow the exclusion or limitaon of incidental
or consequenal damages, so the above exclusion may not
apply to you.
Other Warranties. THE ABOVE LIMITED WARRANTY IS THE
SOLE AND EXCLUSIVE EXPRESS WARRANTY PROVIDED WITH
RESPECT TO THE PRODUCT AND ITS COMPONENTS, AND
DAIKIN HEREBY LIMITS THE DURATION OF ALL IMPLIED
WARRANTIES, INCLUDING, WITHOUT LIMITATION, THE IMPLIED
WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A
PARTICULAR PURPOSE, TO THE DURATION OF THE ABOVE
LIMITED WARRANTY. Some states and provinces do not allow
exclusion of express warranes and/or limitaons on how
long an implied warranty lasts, so the above exclusion and/or
limitaon may not apply to you.
Warranty Limitations. The foregoing limited warranty
extends only to a Customer, and the Customer will not be
entled to any remedy hereunder if he or she aempts to
assign or transfer this warranty. A “defect” under the terms of
this limited warranty shall not include problems resulng from
Customer’s or Customer’s employees’, agents’, invitees’ or a
third party’s misuse, improper installaon, improper design
of any system in which the Product is included, abuse, lack of
normal care, failure to follow wrien instrucons, tampering,
improper repair, or freezing, corrosion, acts of nature or other
causes not arising out of defects in workmanship or material.
If a Product or Component is replaced while under warranty,
the applicable limited warranty period shall not be extended
beyond the warranty me period remaining on the original
Product or Component. This limited warranty does not cover
any costs related to changes to a Product or Component that
may be required by any codes, laws, or regulaons that may
become eecve aer inial purchase of the Product by
Customer.
Customer Responsibilities. In order to make a warranty
claim, the Customer should call Daikin Consumer Aairs
at 1-855-239-2665, which will then arrange for Product or
Component repair or replacement. Warranty claims must be
made during customary, dayme working hours. As further
condions to obtaining warranty coverage hereunder, the
Customer must present forms of invoices evidencing proof of
purchase of a Product and return the Product to Daikin if Daikin
so requests. If the invoice presented does not clearly indicate
the date of inial purchase by a Customer, the applicable
Product’s date of manufacture shown on the Product’s rang
plate will be used instead of the date of inial purchase
for the purpose of calculang the commencement of the
applicable warranty period. Repaired or replacement Products
or Components must be provided by Daikin or a servicer
authorized by Daikin. If the Product must be shipped to Daikin,
Customer shall be solely responsible for properly packaging the
Product, for all freight charges, and for all risk of loss associated
with shipment.
Miscellaneous. If any term or condion of this Limited
Warranty is found by a court of competent jurisdicon to be
invalid, illegal or otherwise unenforceable, the same shall not
aect the other terms or condions hereof or thereof or the
whole of this Limited Warranty. Any delay or failure by Daikin
to exercise any right or remedy will not constute a waiver of
Daikin to thereaer enforce such rights.
This warranty gives you specic legal rights, and you may
also have other rights which vary from state to state or
province to province.
DAIKIN NORTH AMERICA LLC
4201 Lien Rd.
Madison, Wisconsin 53704
1-855-239-2665
For quesons regarding warranty, service, or spare
parts for this Clean Comfort product please contact
your installing contractor or a local Daikin representave.
For technical support, please call 1-855-239-2665.

IO-DV090 IO-DV090 WWW.CLEANCOMFORT.COM 19
Notes:

HUMIDITY CONTROL
WWW.CLEANCOMFORT.COM
IO-DV090 2/14
Our connuing commitment to quality products may mean a change in specicaons without noce.
© 2014 DAIKIN NORTH AMERICA LLC
Houston, Texas • USA
Email: [e-mail] • 1-855-239-2665