• All DIP switches (including the capacity DIP switch) have been
configured before delivery. Only a professional maintenance
personnel should change these settings.
• Improper DIP switch settings may cause condensation, noise, or
unexpected system malfunction.
Caution
Once the installation is completed, please keep the manual properly for future
reference. When this air conditioner is handed over to other users, make sure
that the manual is included with the handover.
Warning
• Do not use this unit in locations where flammable gas may exist. If flamma-
ble gas comes into contact with the unit, a fire may occur, which could result
in serious injury or death.
• If this unit exhibits any abnormal behavior (such as emitting smoke) there is
a danger of serious injury. Disconnect the power supply and contact your
supplier or service engineer immediately.
• The refrigerant in this unit is safe and should not leak if the system is desi-
gned and installed properly. However, if a large amount of refrigerant leaks
into a room, the oxygen concentration will decrease rapidly, which can cause
serious injury or death. The refrigerant used in this unit is heavier than
air,so the danger is greater in basements or other underground spaces.
In the event of a refrigerant leak, turn off any devices that produce a naked
flame and any heating devices, ventilate the room, and contact your sup-
plier or service engineer immediately.
• Toxic fumes may be produced if the refrigerant in this unit comes into
contact with naked flames (such as from a heater, gas stove/burners, or
electric appliances).
• If this unit is used in the same room as a cooker, stove, hob, or burner,
ventilation for sufficient fresh air must be ensured, otherwise the oxygen
concentration will fall, which may cause injury.
• Dispose of this unit’s packaging carefully, so children cannot play with it.
Packaging, especially plastic packaging, can be dangerous, can cause
serious injury or death. Screws, staples and other metal packaging compo-
nents can be sharp and should be disposed of carefully to avoid injury.
• Do not attempt to inspect or repair this unit yourself. This unit should only be
serviced and maintained by a professional air conditioning service
engineer. Incorrect servicing or maintenance can cause electric shocks, fire
or water leaks.
• This unit should only be re-positioned or re-installed by a professional
technician. Incorrect installation can lead to electric shocks, fire or water
leaks. The installation and grounding of electrical appliances should only be
carried out by licensed professionals. Ask your supplier or installation
engineer for further information.
• Do not allow this unit or its remote controller to come into contact with water,
as this can lead to electric shocks or fire.
• Turn off the unit before cleaning it to avoid electric shocks. Otherwise, an
electric shock and injury may result.
• To avoid electric shocks and fires, install an earth leakage detector.
• Do not use paint, varnish, hair spray, other flammable sprays or other
liquids that may give off flammable fumes/vapor near this unit, as doing so
can cause fires.
• When replacing a fuse, ensure that the new fuse to be installed completely
complies with requirements.
• Do not open or remove the unit's panel when the unit is powered on.
Touching the unit's internal components while the unit is powered on can lead
to electric shocks or
injuries caused by moving parts such as the unit's fan.
• Ensure that the power supply is disconnected before any servicing or
maintenance is carried out.
• Do not touch the unit or its remote controller with wet hands, as doing so
can lead to electric shocks.
• Do not allow children to play near this unit, as doing so risks injury.
• Do not insert your fingers or other objects into the unit’s air inlet or air outlet
to avoid injury or damage to the equipment.
• Do not spray any liquids onto the unit or allow any liquids to drip onto the unit.
• Do not place vases or other liquid containers on the unit or in places where
liquid could drip onto it. Water or other liquids that come into contact with the
unit can lead to electric shocks or fires.
• Do not remove the remote controller’s front or back overs and do not touch the
remote controller’s internal components, as doing so can cause injury. If the
remote controller stops working, contact your supplier or service engineer.
• Ensure that the unit is properly grounded, otherwise electric shocks or a fire
may result. Electrical surges (such as those that can be caused by lightning)
can damage electrical equipment. Ensure that suitable surge protectors and
circuit breakers are properly installed, otherwise electric shocks or a fire
may result.
•
Dispose of this unit properly and in accordance with regulations. If electrical
appliances are disposed of in land fills or dumps, hazardous substances can
leak into the ground water and thus enter the food chain.
There are two types of precautions as described below:
Warning: Failure to comply may lead to death or serious injury.
Caution: Failure to comply may lead to injury or damage of the unit.
Depending on the situation, this may also lead to serious injury.
When the wired/remote controller is used to set the cooling operations of the
air conditioner, check the following items one by one. If there is a fault,
troubleshoot according to the manual.
Note: Once the power is connected, when the unit is turned on or started
immediately after the unit is turned off, the air conditioner has a protective
function which delays the start of the compressor.
8. Test Run
8.1 Things to Note Before Test Run
8.2 Test Run
Indoor and outdoor units are properly installed;
Piping and wiring are correct;
No leakage from the refrigerant piping system;
Water discharge is smooth;
Insulation is complete;
Grounding line has been properly connected;
Piping length, and amount of refrigerant filled have been recorded;
The voltage of the power supply is the same as the rated voltage of the air
conditioner;
No obstacles at the air inlet and outlet of the indoor and outdoor units;
Cut-off valves for the gas and liquid ends of the outdoor unit are opened;
Function keys of the wired/remote controller are operating normally;
Room temperature regulation is normal;
LED indicator is on;
Water discharge is normal;
No vibration and st
range sounds during operation;
Operation manual
Content
E0 Mode conflict
E1 Communication error between indoor and outdoor units
E2
E3
E4
E6
E7
Eb
Ed
EE Water level error
FE
Error
code
Indoor ambient temperature sensor (T1) error
Indoor heat exchanger mid-point temperature sensor(T2) error
Indoor heat exchanger outlet temperature sensor (T2B) error
Fan error
EEPROM error
Indoor EEV coil error
Outdoor unit error
Indoor unit has not been assigned an address
7.4 Error Codes and Definitions
14
Auto restart function enabled
Auto restart function disabled
J1
• The default DIP switch setting is based on the actual unit.
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