Tosot WAT Series User manual

WINDOW AIR CONDITIONER
WAT Series
OWNER’S MANUAL
OPERATOR’S MANUAL
TECHNICAL MANUAL
For model:
GJC10BL-A6NRNC5H
Please read this owner’s manual carefully
before operating the unit and keep it for future reference.
V2021-11
IMPORTANT : The remote control and hardware necessary to use your new product
is included inside the box. You will find them inserted in the Styrofoam included
in the box.

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TABLE OF CONTENTS
Operation Notices.....................................................................................................................3
Symbols meanings....................................................................................................................................................3
Exception Clauses .....................................................................................................................................................4
The Refrigerant...........................................................................................................................................................5
Refrigerant Safety Precautions............................................................................................................................. 6
General Safety Precautions....................................................................................................................................7
General Instructions for Use................................................................................................................................10
Installation .............................................................................................................................12
Parts Name.................................................................................................................................................................12
Preparation for Installation..................................................................................................................................13
Installation Procedure............................................................................................................................................14
Control.....................................................................................................................................19
Remote Control........................................................................................................................................................19
Electronic Thermostat............................................................................................................................................22
Air Conditioner Use ................................................................................................................23
Instructions for fan direction adjusting...........................................................................................................23
Normal sounds.........................................................................................................................................................24
Maintenance ...........................................................................................................................24
Cleaning and Maintenance..................................................................................................................................24
Maintenance Security Precautions ...................................................................................................................26
Additional Information for Maintenance........................................................................................................27
Malfunction Analysis..............................................................................................................32
Assistance................................................................................................................................35

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OPERATION NOTICES
READ THIS MANUAL: Inside you will find many helpful hints on how to use and maintain your air
conditioner properly. Just a little preventive care on your part can save you a great deal of time
and money over the life of your air conditioner. You'll find many answers to common problems
in the chart of troubleshooting tips. If you review our chart of Troubleshooting Tips first, you may
not need to call for service at all.
Note: Graphics in this manual are only for reference. Please refer to actual products for specific
details.
This appliance is not intended for use by people (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.
CAUTION:
• Contact the authorized service technician for repair or maintenance of this unit.
• Contact the installer for installation of this unit.
• If the SUPPLY CORD is damaged, it must be replaced by the manufacturer, its service agent or
similarly qualified people to avoid a hazard.
• Installation work must be performed in accordance with the national wiring standards and by
authorized personnel only.
Symbols Meanings
Indicates a risk of fire, caution.
Indicates that before using the appliance, you must read the owner’s manual.
Indicates that before installing the appliance, you must read the installation manual.
Indicates that before repairing the appliance, you must read the service manual.
General Warnings:
Indicates NEVER DO THIS.
Indicates ALWAYS DO THIS.

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Indicated harzardeous situation that, if not avoided,
will result in death or serious injury.
Indicated harzardeous situation that, if not avoided,
could result in death or serious injury.
Indicated harzardeous situation that, if not avoided, may result
in minor or moderate injury.
Indicates important but not hazard-related information,
used to indicate risk of property damage.
Indicates a hazard that would be assigned the mention of
WARNING or CAUTION.
DANGER
WARNING
CAUTION
NOTICE
Exception Clauses
Manufacturer will bear no responsibilities when personal injury or property loss is caused by the
following reasons.
1. Damage to the product due to improper use or misuse of the product;
2. Alter, change, maintain or use of the product with other equipment without abiding to the
instruction manual of manufacturer;
3. After verification, the defect of product is directly caused by corrosive gas;
4. After verification, defects are due to improper operation during transportation of product;
5. Operate, repair, maintain the unit without abiding to instruction manual or related regulations;
6. After verification, the problem or defect is caused by the quality specification or performance
of parts and components that are produced by other manufacturers;
7. The damage is caused by natural calamities or used in a bad environment.
Safety Warnings:

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The Refrigerant
To have a functional air conditioning unit, a special refrigerant circulates in the system. The
used refrigerant is the fluoride R32, which is specially cleaned. The refrigerant is flammable and
inodorous. Furthermore, it can lead to explosion under certain conditions. But the flammability
of the refrigerant is very low. It can be ignited only by fire.
Compared to common refrigerants, R32 is a nonpolluting refrigerant with no harm to the
ozonosphere. The greenhouse emissions are also lower. R32 has very good thermodynamic
features which leads to a high energy efficiency. The unit therefore needs less filling.
DANGER
WARNING
CAUTION
NOTICE
• Keep ventilation openings clear of obstruction.
• Do not use means to accelerate the defrosting process or to clean, other than those recom-
mended by the manufacturer.
• Should repair be necessary, contact a qualified technician. Any repairs carried out by unquali-
fied personnel may be dangerous.
• For repairs, strictly follow manufacturer’s instructions only.
• Appliance shall be installed, operated and stored in a room with a floor area larger than the
recommended area (Please refer to table“1” in section of “Refrigerant Safety Precautions”).
• The appliance shall be stored in a room without continuously operating ignition sources (for
example: open flames, an operating gas appliance or an operating electric heater).
• Do not pierce or burn the unit.
• Appliance is filled with flammable gas R32.
• Be aware that refrigerants do not contain odor.
• When maintaining or disposing the unit, the refrigerant inside the system must be eliminated.
Refrigerant should be recovered. It can’t be discharged freely.
• No open fire (fired equipment such as electrical heater and gas stove etc.) or any equipment
(e.g. switch) that might generate arc should be around the appliance.
NOTE: Anyone 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 authorizes
their competence to handle refrigerants safely in accordance with an industry recognized assess-
ment specification. Servicing shall only be performed as recommended by the equipment manu-
facturer. Maintenance and repair requiring the assistance of skilled personnel shall be carried out
under the supervision of the person competent to use flammable refrigerants.

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Refrigerant Safety Precaution
Qualification requirement for installation and maintenance
Everyone who is working with a refrigeration system should bear the valid certification awarded
by the authorized organization and the qualification for dealing with the refrigeration system
recognized by this industry.
Installation reminders
• The air conditioner cannot be installed in a room that has running fire or such fire source.
• The air conditioner must be installed in a room that is larger than the minimum room area.
(See Table 1 below).
• Leak test is a must after installation.
Table 1: Minimum room area (m2)
Charge amount
(kg) ≤1.2 1.3 1.4 1.5 1.6 1.7 1.8 1.9 2.0 2.1 2.2 2.3 2.4 2.5
Floor location / 14.5 16.8 19.3 22.0 24.8 27.8 31.0 34.3 37.8 41.5 45.4 49.4 53.6
Window
mounted / 5.2 6.1 7.0 7.9 8.9 10.0 11.2 12.4 13.6 15.0 16.3 17.8 19.3
Wall mounted / 1.6 1.9 2.1 2.4 2.8 3.1 3.4 3.8 4.2 4.6 5.0 5.5 6.0
Ceiling
mounted / 1.1 1.3 1.4 1.6 1.8 2.1 2.3 2.6 2.8 3.1 3.4 3.7 4.0
Welding Instructions - Must be done by a qualified technician
If you should cut or weld the refrigerant system pipes during maintenance, please follow the
steps below:
1. Shut down the unit and cut power supply.
2. Eliminate the refrigerant.
3. Vacuum.
4. Clean it with N2 gas.
5. Cut or weld.
6. Carry back to the service spot for welding.
NOTE: The refrigerant should be recycled into a specialized storage tank.
WARNING: Make sure there isn’t any naked flame near the outlet of the vacuum pump
and that is well-ventilated.

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Instructions to fill the Refrigerant- Must be done by a qualified technician
1. Use the refrigerant filling appliances specialized for R32. Make sure that different kinds
of refrigerant won’t contaminate with each other.
2. The refrigerant tank should be kept upright at the time of filing refrigerant.
3. Stick the label on the system after filling is finished.
4. Don’t overfill.
5. After filling is finished, please do the leakage detection test before using the unit.
General Safety Precautions
To prevent injury to the user or other people and property damage, the following instructions
must be followed. Incorrect operation may cause harm or damage.
Plug in power plug properly. Otherwise, it may cause electric shock or fire due to excess heat
generation.
Always ensure effective grounding. Incorrect grounding may cause electric shock.
Unplug the unit if strange sounds, smell or smoke comes from it.
Keep firearms away. It may cause fire.
Ventilate room before operating air conditioner if there is a gas leakage from another appli-
ance. It may cause explosion, fire and burns.
Always install circuit breaker and a dedicated power circuit. Incorrect installation may cause
fire and electric shock.
Ensure that the installation bracket of the outdoor appliance is not damaged due to prolonged
exposure.
Ventilate the room well when used together with a stove, as an oxygen shortage may occur.
When the unit is to be cleaned, switch off and turn off the circuit breaker.
Stop operation and close the window in a storm or hurricane.
Turn off the main power switch when not using the unit for a long time. It may cause failure of
product or fire.
Always insert the filters securely. Clean the filter once every two weeks. Operation without
filters may cause failure.
Use a soft cloth to clean the unit.
If water enters the unit, turn the unit off at the power outlet and switch off the circuit breaker.
Isolate supply by taking the power plug out and contact a QUALIFIED SERVICE TECHNICIAN.
Use caution when unpacking and installing. Sharp edges could cause injury.
Maintenance must be performed by qualified professionals. Otherwise, it may cause personal
injury or damage.

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Do not place obstacles around air-inlets or inside of air-outlets. It may cause failure of appli-
ance or an accident.
Do not operate or stop the unit by inserting or pulling out the power plug. It may cause electric
shock or fire due to heat generation.
Do not damage or use an unspecified power cord.
If the power supply wire is damaged, it must be replaced by a qualified person in order to avoid
a hazard.
Do not modify power cord length or share the outlet with other appliances. It may cause
electric shock or fire due to heat generation.
Do not hold the plug by the head when taking it out. It may cause electric shock and damage.
Do not use strong detergent such as wax or thinner to clean the unit. The appearance may be
deteriorated due to change of product color or scratching of the surface.
Do not operate with wet hands or in damp environment. It may cause electric shock.
Do not direct airflow at room occupants directly. It could damage your health.
Do not allow water to run into electric parts. It may cause failure of machine or electric shock.
Do not use the socket if it is loose or damaged. It may cause fire or electric shock.
Do not use the power cord close to heating appliances. It may cause fire or electric shock.
Do not use the power cord near flammable gas or combustibles, such as gasoline, benzene,
thinner, etc. it may cause an explosion or fire.
Do not disassemble or modify unit. It may cause failure or electric shock.
Do not open the unit during operation. It may cause electric shock.
When the air filter is to be removed, do not touch the metal parts of the unit. It may cause
injury.
Do not clean the air conditioner with water. Water may enter the unit and degrade the insula-
tion. It may cause electric shock.
Do not place heavy objects on the power cord and ensure that the power cord is not com-
pressed. There is danger of fire or electric shock.
Do not drink water drained from air conditioner. It contains contaminants and could make you
sick.
Do not put a pet or house plant where it will be exposed to direct air flow. This could cause
injury.
Do not use for special purposes (i.e. preserve precisions devices, food, pets, plants and art
objects). It may cause deterioration of quality, etc.
Do not clean unit when power is on as it may cause fire and electric shock. It may cause an
injury.
Do not connect air conditioner to multipurpose socket. Otherwise, it may cause fire hazard.
Do install the air switch ((thermal-magnetic breaker). If not, it may cause malfunction.
Do not spill water on the remote controller, otherwise the remote controller may be broken.
Do not spray water on air conditioner. It may cause electric shock or malfunction.
Do not extend fingers or objects into air inlet or air outlet. It may cause personal injury or
damage.
Do not step on or put heavy objects on air conditioner. It may cause damage or personal injury.

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The power supply cord with this air conditioner contains a current detection device designed to
reduce the risk of fire. Please refer to the section “Instructions for use” for details.
If the power supply cord is damaged, it cannot be repaired. It must be replaced with a cord from
the product manufacturer.
For your safety
• Do not store or use gasoline or other flammable vapors and liquids near this or any other
appliance.
• Avoid fire hazard or electric shock. Do not use an extension cord or an adaptor plug. Do not
remove any prong from the power cord.
Electrical Information
• Be sure the electrical service is adequate for the model you have chosen. This information can
be found on the serial plate, which is located on the side of the cabinet and behind the grill.
• Be sure the air conditioner is properly grounded. To minimize shock and hazards, proper
grounding is important. The power cord is equipped with a three-pong grounding plug for
protection against shock hazards.
• Your air conditioner must be used in a properly grounded wall receptible. If the wall recep-
tible you intend to use is not adequately grounded or protected by a time delay fuse or circuit
breaker, have a qualified electrician install the proper receptible.
• Ensure the receptible is accessible after the unit installation.
• Do not run air conditioner without side protective cover in place. This could result in mecha-
nical damage within the air conditioner.
• Do not, under any circumstances, cut, remove or bypass the grounding prong.
• Do not use an extension cord or an adapter plug.

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General Instructions for Use
Power supply
The power supply cord contains a current device that senses damage to the power cord. To test
your power supply cord, do the following:
1. Plug in the Air Conditioner.
2. The power supply cord will haveTWO buttons on the plug head. Press theTEST button, you will
notice a click as the RESET button pops up.
3. Press the RESET button, again 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.)
NOTICE:
• 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 must be replaced if it fails reset when either the TEST button is pushed, or it
cannot be reset. Please contact customer service.
• If power supply cord is damaged, it cannot be repaired. It MUST be replaced with a new cord.
Please contact customer service.
NOTE: The power cord of window type unit has creepage
protection device.
There is a test button and a reset button on the plug. You
are suggested to check the power cord periodically.
Check method: After putting through the power, the in-
dicator is ON. After pressing the TEST button, the indicator
is OFF and you can hear a sound. Then press the RESET
button, the indicator will be ON, which indicates the pro-
tection device is normal.
NOTE: Plug may be different with the actual product.
Please refer to actual product.
Operating temperature range
Indoor side DB/WB (°C/°F) Outdoor side DB/WB (°C/°F)
Maximum Cooling 40°C (104°F) / 26.7°C (80°F) 40°C (104°F) / 26.7°C (80°F)
The operating temperature range (outdoor temperature) for cooling unit only is 18°C to 40°C
(64.4°F to 104°F).
LCDI
POWER
RESET
TEST
RESET
TEST
Indicator
Indicator