dreo DR-HAC002 User manual

Inverter Window
Air Conditioner
USER MANUAL

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CONTENTS

CONTENTS
IMPORTANT SAFETY INSTRUCTIONS
ASSEMBLING YOUR AIR CONDITIONER
USING YOUR AIR CONDITIONER
CLEANING AND MAINTENANCE
TROUBLESHOOTING
DREO CUSTOMER CARE
01
15
25
34
36
39

IMPORTANT SAFETY
INSTRUCTIONS
Read All Instructions and Cautionary Markings
Before Operation and Installation to prevent
death or injury to the user or other people and
property damage, the following instructions
must be followed. Incorrect operation due to
ignoring of instructions may cause death, harm
or damage.
This symbol indicates the
possibility of personnel
injury or loss of life.
WARNING
This symbol indicates
the possibility of property
damage or serious
consequences.
CAUTION
WARNING
• Installation must be performed according to the installation instructions.
Improper installation can cause water leakage, electrical shock, or fire.
• Use only the included accessories and parts, and specified tools for the
installation. Using nonstandard parts can cause water leakage, electrical
shock, fire, and injury or property damage.
• Make sure that the outlet you are using is grounded and has the
appropriate voltage. The power cord is equipped with a three-prong
grounding plug to protect against shock. Voltage information can be
found on the nameplate of the appliance.
Inverter Window Air Conditioner
01

• Your appliance must be used in a properly grounded wall receptacle. If the
wall receptacle you intend to use is not adequately grounded or
protected by a time delay fuse or circuit breaker (the fuse or circuit
breaker needed is determined by the maximum current of the appliance.
The maximum current is indicated on the nameplate located on the
appliance), have a qualified electrician install the proper receptacle.
• Install the appliance on a flat, sturdy surface. Failure to do so could
result in damage or excessive noise and vibration.
• The appliance must be kept free from obstruction to ensure proper
function and to mitigate safety hazards.
• Do not modify the length of the power cord or use an extension cord to
power the appliance.
• Do not share a single outlet with other electrical appliances. Improper
power supply can cause fire or electrical shock.
• Do not install your air conditioner in a wet room such as a bathroom or
laundry room. Too much exposure to water can cause electrical
components to short circuit.
• Do not install the appliance in a location that may be exposed to
combustible gas, as this could cause fire.
• The appliance has wheels to facilitate moving. Make sure not to use the
wheels on thick carpet or to roll over objects, as these could cause tipping.
• Do not operate the appliance if it has been dropped or damaged.
• The appliance with electric heater shall have at least 3 feet / 1 meter
space away from the combustible materials.
• Do not touch the appliance with wet or damp hands or when barefoot.
• If the air conditioner is knocked over during use, turn off the appliance and
unplug it from the main power supply immediately. Visually inspect the
appliance to ensure there is no damage. If you suspect the appliance has
been damaged, contact a technician or customer service for assistance.
• In a thunderstorm, the power must be cut off to avoid damage to the
machine due to lightning. Your air conditioner should be used in such a
way that it is protected from moisture. e.g. condensation, splashed water,
etc. Do not place or store your air conditioner where it can fall or be pulled
into water or any other liquid. Unplug immediately if it occurs.
Inverter Window Air Conditioner 02

• All wiring must be performed strictly in accordance with the wiring diagram
located inside of the appliance.
• The appliance's circuit board(PCB) is designed with a fuse to provide
overcurrent protection. The specifications of the fuse are printed on the
circuit board, such as: T 3.15A/250V, etc.
• After proper installation, condensate will not overflow during normal use.
If the fan hits the built-up water and the sound annoys you, please remove
the cap located at the back of the air conditioner to drain the water away.
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03
CAUTION
• This appliance can be used by children aged from 8 years and above and
person with reduced physical, sensory or mental capabilities or lack of
experience and knowledge if they have been given supervision or
instruction concerning use of the appliance in a safe way and understand
the hazards involved. Children shall not play with the appliance. Cleaning
and user maintenance shall not be made by children without supervision.
(be applicable for the European Countries)
• This 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. Children must be supervised around the appliance at all times.
(Be applicable for other countries except the European Countries.)
• If the supply cord is damaged, it must be replaced by the manufacturer,its
service agent or similarly qualified persons in order to avoid a hazard.
• Prior to cleaning or other maintenance, the appliance must be
disconnected from the supply mains.
• Never use this appliance if it is not working properly, or if it has been
dropped or damaged.
• Do not run cord under carpeting. Do not cover cord with throw rugs,
runners, or similar coverings. Do not route cord under furniture or
appliances. Arrange cord away from traffic area and where it will not be
tripped over.

Inverter Window Air Conditioner 04
• Do not operate with a damaged cord, plug, power fuse or circuit breaker.
Discard the appliance or return to an authorized service facility for
examination and/or repair.
• To reduce the risk of fire or electric shock, do not use this fan with any
solid-state speed control device.
• The appliance shall be installed in accordance with national wiring
regulations.
• Contact the authorized service technician for repair or maintenance of
this appliance.
• Contact the authorized installer for installation of this appliance.
• Do not cover or obstruct the inlet or outlet grilles.
• Do not use this product for functions other than those described in this
instruction manual.
• Before cleaning, turn off the power and unplug the appliance.
• Disconnect the power if strange sounds, smell, or smoke comes from it.
• Do not press the buttons on the control panel with anything other than
your fingers.
• Do not operate or stop the appliance by inserting or pulling out the power
cord plug.
• Do not use hazardous chemicals to clean or come into contact with the
appliance. Do not use the appliance in the presence of inflammable
substances or vapour such as alcohol, insecticides, petrol,etc.
• Always contact a qualified person to carry out repairs. If the damaged
power supply cord must be replaced with a new power supply cord
obtained from the product manufacturer and not repaired.
• Hold the plug by the head of the power plug when taking it out.
• Turn off the product when not in use.

Inverter Window Air Conditioner
05
Operation of Current Device
The power supply cord contains a current measuring device that
detects damage to the power cord. Test your power supply cord as
follows:
1. Plug in the air conditioner.
2. The power supply cord will have TWO buttons on the plug head. Press
the TEST button. You will notice a click as the RESET button pops out.
3. Press the RESET Button. You will notice a click as the button engages.
4. The power supply cord is now supplying electricity to the unit.
(On some products this is also indicated by a light on the plug head.)
NOTE
• The power supply cord with this air conditioner contains a
current detection device designed to reduce the risk of fire.
• In the event that the power supply cord is damaged, it can not
be repaired. It must be replaced with a cord from the
manufacturer.
• Do not use this device to turn the unit on or off.
• Always make sure the RESET button is pushed in for correct
operation.
• The power supply cord must be replaced if it fails to reset when
either the TEST button is pushed, or it can not be reset.
Please contact Customer Service.

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WARNING FOR USING R32
REFRIGERANT
For R32 refrigerant models:
• Appliance shall be installed, operated and stored in a room with a floor
area larger than 4 m².
• Appliance shall not be installed in an unvertilated space, if that space is
smaller than 4 m².
• Compliance with national gas regulations shall be observed.
• Keep ventilation openings clear of obstruction.
• The appliance shall be stored so as to prevent mechanical damage from
occurring.
• A warning that the appliance shall be stored in a well-ventilated area
where the room size corresponds to the room area as specified for
operation.
• Any person who is involved with working on or breaking into a refrigerant
circuit should hold a current valid certificate from an industry-accredited
assessment authority, which authorises their competence to handle
refrigerants safely in accordance with an industry recognised assessment
specification.
• Servicing shall only be performed as recommended by the equipment
manufacturer. Maintenance and repair requiring the assistance of other
skilled personnel shall be carried out under the supervision of the person
competent in the use of flammable refrigerants.
• Please follow the instruction carefully to handle, install, clear, service the
air conditioner to avoid any damage or hazard. Flammable Refrigerant R32
is used within air conditioner. When maintaining or disposing the air
conditioner, the refrigerant (R32) shall be recovered properly, shall not
discharge to air directly.
• No any open fire or device like switch which may generate spark/arcing
shall be around air conditioner to avoid causing ignition of the flammable
refrigerant used.
• Please follow the instruction carefully to store or maintain the air
conditioner to prevent mechanical damage from occurring.
• Flammable refrigerant -R32 is used in air conditioner. Please follow the
instruction carefully to avoid any hazard.
• For specific information on the type of gas and the amount, please to the
relevant label on the unit itself.

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07
Caution: Risk of fire/flammable materials
(Required for R32 units only)
Warning: low burning velocity material
(For R32 models apply to IEC60335-2-40:2018)
Note about FluorinatedGases
1. Fluorinated greenhouse gases are contained in hermetically sealed
equipment. For specific information on the type, the amount and the CO2
equivalent in tonnes of the fluorinated greenhouse gas(on some models),
please refer to the relevant label on the unit itself.
2. Installation, service, maintenance and repair of this unit must be
performed by a certified technician.
3. Product uninstallation and recycling must be performed by a certified
technician.
Explanation of symbols displayed on the unit:
FOR HOUSEHOLD USE
ONLY
READ AND SAVE
THESE INSTRUCTIONS

Inverter Window Air Conditioner 08
FOR HOUSEHOLD USE
THESE INSTRUCTIONS
1.Transport of equipment containing flammable
refrigerants
See transport regulations.
2.Marking of equipment using signs
See local regulations.
3.Disposal of equipment using flammable refrigerants
See national regulations.
4.Storage of equipment/appliances
The storage of equipment should be in accordance with the manufacturer's
instructions.
5.Storage of packed (unsold) equipment
Storage package protection should be constructed such that mechanical
damage to the equipment inside the package will not cause a leak of the
refrigerant charge. The maximum number of pieces of equipment permitted
to be stored together will be determined by local regulations.
6.Information on servicing
1) Checks to the area
Prior to beginning work on systems containing flammable refrigerants,
safety checks are necessary to ensure that the risk of ignition is minimised.
For repair to the refrigerating system, the following precautions shall be
complied with prior to conducting work on the system.
2) Work procedure
Work shall be undertaken under a controlled procedure so as to minimise
the risk of a flammable gas
or vapour being present while the work is being performed.
3) General work area
All maintenance staff and others working in the local area shall be instruct-
ed on the nature of work being carried out. Work in confined spaces shall
be avoided. The area around the workspace shall be sectioned off. Ensure
that the conditions within the area have been made safe by control of
flammable material.
4) Checking for presence of refrigerant
The area shall be checked with an appropriate refrigerant detector prior to
and during work, to ensure the technician is aware of potentially flammable
atmospheres. Ensure that the leak detection equipment being used is
suitable for use with flammable refrigerants, i.e. non-sparking, adequately
sealed or intrinsically safe.
5)Presence of fire extinguisher
If any hot work is to be conducted on the refrigeration equipment or any

Inverter Window Air Conditioner
09
associated parts, appropriate fire extinguishing equipment shall be avail-
able to hand. Have a dry powder or CO2 fire extinguisher adjacent to the
charging area.
6)No ignition sources
No person carrying out work in relation to a refrigeration system which
involves exposing any pipe work that contains or has contained flammable
refrigerant shall use any sources of ignition in such a manner that it may
lead to the risk of fire or explosion. All possible ignition sources, including
cigarette smoking, should be kept sufficiently far away from the site of
installation, repairing, removing and disposal, during which flammable
refrigerant can possibly be released to the surrounding space. Prior to work
taking place, the area around the equipment is to be surveyed to make
sure that there are no flammable hazards or ignition risks. No Smoking
signs shall be displayed.
7)Ventilated area
Ensure that the area is in the open or that it is adequately ventilated
before breaking into the system or conducting any hot work. A degree of
ventilation shall continue during the period that the work is carried out. The
ventilation should safely disperse any released refrigerant and preferably
expel it externally into the atmosphere.
8)Checks to the refrigeration equipment
Where electrical components are being changed, they shall be fit for the
purpose and to the correct specification. At all times the manufacturer's
maintenance and service guidelines shall be followed. If in doubt consult
the manufacturer's technical department for assistance. The following
checks shall be applied to installations using flammable refrigerants:
• The charge size is in accordance with the room size within which the
refrigerant containing parts are installed;
• The ventilation machinery and outlets are operating adequately and are
not obstructed;
• If an indirect refrigerating circuit is being used, the secondary circuit shall
be checked for the presence of refrigerant; Marking to the equipment
continues to be visible and legible. Markings and signs that are illegible
shall be corrected;
• Refrigeration pipe or components are installed in a position where they
are unlikely to be exposed to any substance which may corrode
refrigerant containing components, unless the components are
constructed of materials which are inherently resistant to being corroded
or are suitably protected against being so corroded.
9)Checks to electrical devices
Repair and maintenance to electrical components shall include initial safety
checks and component inspection procedures. If a fault exists that could
compromise safety, then no electrical supply shall be connected to the
circuit until it is satisfactorily dealt with. If the fault cannot be corrected

Inverter Window Air Conditioner 10
immediately but it is necessary to continue operation, an adequate tempo-
rary solution shall be used. This shall be reported to the owner of the
equipment so all parties are advised.
Initial safety checks shall include:
• That capacitors are discharged: this shall be done in a safe manner to
avoid possibility of sparking;
• That there no live electrical components and wiring are exposed while
charging, recovering or purging the system;
• That there is continuity of earth bonding.
7.Repair to intrinsically safe components
Do not apply any permanent inductive or capacitance loads to the circuit
without ensuring that this will not exceed the permissible voltage and
current permitted for the equipment in use. Intrinsically safe components
are the only types that can be worked on while live in the presence of a
flammable atmosphere. The test apparatus shall be at the correct rating.
Replace components only with parts specified by the manufacturer. Other
parts may result in the ignition of refrigerant in the atmosphere from a leak.
8.Cabling
Check that cabling will not be subject to wear, corrosion, excessive pres-
sure, vibration, sharp edges or any other adverse environmental effects.
The check shall also take into account the effects of aging or continual
vibration from sources such as compressors or fans.
9.Detection of flammable refrigerants
Under no circumstances shall potential sources of ignition be used in the
searching for or detection of refrigerant leaks. A halide torch (or any other
detector using a naked flame) shall not be used.
10.Leak detection methods
The following leak detection methods are deemed acceptable for systems
containing flammable refrigerants. Electronic leak detectors shall be used
to detect flammable refrigerants, but the sensitivity may not be adequate,
or may need re-calibration. (Detection equipment shall be calibrated in a
refrigerant-free area.) Ensure that the detector is not a potential source of
ignition and is suitable for the refrigerant used. Leak detection equipment
shall be set at a percentage of the LFL of the refrigerant and shall be
calibrated to the refrigerant employed and the appropriate percentage of
gas (25 % maximum) is confirmed. Leak detection fluids are suitable for use
with most refrigerants but the use of detergents containing chlorine shall
be avoided as the chlorine may react with the refrigerant and corrode the
copper pipe-work. If a leak is suspected, all naked flames shall be removed/
extinguished. If a leakage of refrigerant is found which requires brazing, all

of the refrigerant shall be recovered from the system, or isolated (by means
of shut off valves) in a part of the system remote from the leak. Oxygen free
nitrogen (OFN) shall then be purged through the system both before and
during the brazing process.
11.Removal and evacuation
When breaking into the refrigerant circuit to make repairs or for any other
purpose conventional procedures shall be used. However, it is important
that best practice is followed since flammability is a consideration. The
following procedure shall be adhered to:
Remove refrigerant; Purge the circuit with inert gas; Evacuate; Purge again
with inert gas; Open the circuit by cutting or brazing.
The refrigerant charge shall be recovered into the correct recovery cylin-
ders. The system shall be flushed with OFN to render the unit safe. This
process may need to be repeated several times. Compressed air or oxygen
shall not be used for this task. Flushing shall be achieved by breaking the
vacuum in the system with OFN and continuing to fill until the working
pressure is achieved, then venting to atmosphere, and finally pulling down
to a vacuum. This process shall be repeated until no refrigerant is within
the system. When the final OFN charge is used, the system shall be vented
down to atmospheric pressure to enable work to take place. This operation
is absolutely vital if brazing operations on the pipe-work are to take place.
Ensure that the outlet for the vacuum pump is not close to any ignition
sources and there is ventilation available.
12.Charging procedures
In addition to conventional charging procedures, the following require-
ments shall be followed. Ensure that contamination of different refrigerants
does not occur when using charging equipment. Hoses or lines shall be as
short as possible to minimise the amount of refrigerant contained in them.
Cylinders shall be kept upright.
Ensure that the refrigeration system is earthed prior to charging the
system with refrigerant.
Label the system when charging is complete (if not already).
Extreme care shall be taken not to overfill the refrigeration system. Prior to
recharging the system it shall be pressure tested with OFN. The system
shall be leak tested on completion of charging but prior to commissioning.
A follow up leak test shall be carried out prior to leaving the site.
13.Decommissioning
Before carrying out this procedure, it is essential that the technician is
completely familiar with the equipment and all its detail. It is recommended
good practice that all refrigerants are recovered safely.
Prior to the task being carried out, an oil and refrigerant sample shall be
Inverter Window Air Conditioner
11

Inverter Window Air Conditioner 12
taken in case analysis is required prior to re-use of reclaimed refrigerant. It
is essential that electrical power is available before the task is commenced.
a)Become familiar with the equipment and its operation. b) Isolate system
electrically. c) Before attempting the procedure ensure that: Mechanical
handling equipment is available, if required, for handling refrigerant cylin-
ders;All personal protective equipment is available and being used correct-
ly; The recovery process is supervised at all times by a competent person;
Recovery equipment and cylinders conform to the appropriate standards.
d) Pump down refrigerant system, if possible. e) If a vacuum is not possible,
make a manifold so that refrigerant can be removed from various parts of
the system. f) Make sure that cylinder is situated on the scales before
recovery takes place. g) Start the recovery machine and operate in accor-
dance with manufacturer's instructions. h) Do not overfill cylinders. (No more
than 80 % volume liquid charge). i) Do not exceed the maximum working
pressure of the cylinder, even temporarily. j) When the cylinders have been
filled correctly and the process completed, make sure that the cylinders
and the equipment are removed from site promptly and all isolation valves
on the equipment are closed off. k) Recovered refrigerant shall not be
charged into another refrigeration system unless it has been cleaned and
checked.
14.Labelling
Equipment shall be labelled stating that it has been de-commissioned and
emptied of refrigerant. The label shall be dated and signed. Ensure that
there are labels on the equipment stating the equipment contains
flammable refrigerant.
15.Recovery
When removing refrigerant from a system, either for servicing or decommis-
sioning, it is recommended good practice that all refrigerants are removed
safely. When transferring refrigerant into cylinders, ensure that only appro-
priate refrigerant recovery cylinders are employed. Ensure that the correct
number of cylinders for holding the total system charge is available. All
cylinders to be used are designated for the recovered refrigerant and
labelled for that refrigerant (i.e. special cylinders for the recovery of refriger-
ant). Cylinders shall be complete with pressure relief valve and associated
shut-off valves in good working order. Empty recovery cylinders are evacu-
ated and, if possible, cooled before recovery occurs. The recovery equip-
ment shall be in good working order with a set of instructions concerning
the equipment that is at hand and shall be suitable for the recovery of
flammable refrigerants. In addition, a set of calibrated weighing scales shall
be available and in good working order. Hoses shall be complete with
leak-free disconnect couplings and in good condition. Before using the
recovery machine, check that it is in satisfactory working order, has been

Inverter Window Air Conditioner
13
properly maintained and that any associated electrical components are
sealed to prevent ignition in the event of a refrigerant release. Consult
manufacturer if in doubt. The recovered refrigerant shall be returned to the
refrigerant supplier in the correct recovery cylinder, and the relevant Waste
Transfer Note arranged. Do not mix refrigerants in recovery units and
especially not in cylinders. If compressors or compressor oils are to be
removed, ensure that they have been evacuated to an acceptable level to
make certain that flammable refrigerant does not remain within the lubri-
cant. The evacuation process shall be carried out prior to returning the
compressor to the suppliers. Only electric heating to the compressor body
shall be employed to accelerate this process. When oil is drained from a
system, it shall be carried out safely.

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Specifications
Model
Refrigerant
Cooling Capacity
Rated Voltage
Rated Frequency
Rated Input
Rated Current
CEER
Recommended Applicable Area
Dimensions
Weight
DR-HAC002
R32
8,000 Btu/h
115V
60Hz
740W
8.3A
15 (Btu/h)/W
≤350 ft²
22.99 x 18.81 x 13.97 in /
584 x 478 x 355 mm
56.7 lb / 25.7 kg
Gentle Reminder
Check the appliance regularly and refer to TROUBLESHOOTING or
contact our customer support if it shows any of the following signs:
- Power cord or plug is damaged.
- Loud noise, unusual smell or excessive heat.

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15
ASSEMBLING YOUR AIR
CONDITIONER
Package Contents
Part Name Quantity
Window Air Conditioner 1
Remote Control 1
Long Foam Seal
(Non-Adhesive) 1
Long Foam Seal
(Adhesive) 1
Panel Seal
(Adhesive) 2
Security Bracket 1
3/4’’ Screw 4
1/2’’ Screw 3
Remote Control Battery 2
Plasticene 1