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SPLIT TYPE WALL MOUNTED HEAT PUMP
FULL DC INVERTER AIR CONDITIONER
OPERATION MANUAL
CWS-09KDC
CWS-12KDC
CWS-18KDC
CWS-24KDC
To guarantee operating the unit correctly and safely, please read this manual
carefully before using. Keep a suitable storage for reference.
Please consign to professionals to install the air conditioner to guarantee the
safety and function.
The unit must be earthed reliably.
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CONTENT
1. PREFACE
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2. SAFETY PRECAUTION
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3. STRUCTURE
6
4. OPERATION METHOD
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a) Auxiliary controller and LED display
b) Remote controller
c) Operation method
5. OPERATION GUIDE
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6. MAINTENANCE
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7. TROUBLE CHECKING
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8. INSTALLATION
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a) Requirement of indoor unit
b) Requirement of outdoor unit
c) Installation step
9. SPECIFICATION
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1. PREFACE
This wall mounted split air conditioner takes the modern design like the super quiet
operation and the computerized control system.
Only proper installation and operation can assure the capability of the air conditioner. The
air conditioner should be set up by the qualified technician to ensure safety use and good
working.
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2. SAFETY PRECAUTION
CAUTION
1. Do not take upon yourself to install, remove or re-install the air conditioner, improper
installation may cause water leakage, fire or electric shock.
2. The unit must be earthed reliably; otherwise, it may cause shock, fire or other accident.
3. Ensure the plug inserted in reliably, otherwise it will lead to shock, overheated or fire.
4. Do not stop the unit by pulling out the plug; otherwise the plug will be loosened.
5. Do not damage the wire or use unspecified wire; otherwise it will cause shock or fire.
6. Do not connect the plug and other plugs on one socket; otherwise it will lead to shock or
fire.
7. Do not operate with wet hand; otherwise you will get a shock.
8. Do not insert obstacle into the air inlet or air outlet, otherwise mechanical injury or other
danger will happen.
9. Do not expose persons to single direction airflow for a long time to avoid harm to your
health.
10. Shut off the power if there is abnormity (smoke, sparks or flame). Please contact the
agent or maintenance department.
11. Do not attempt to repair the air conditioner by yourself, improper reparation will cause
shock or fire, please contact the agent or maintenance department.
NOTICE
1. The quality of the electric outlet must be reliable; otherwise it will cause fire or other
accident.
2. Ensure proper connection of drain pipe. Otherwise, it may cause water leakage or
moisten the wall.
3. The base and bracket of the unit must be rigid and stable. Otherwise, the units may
drop down or produce abnormal vibration and noise.
4. The unit must be kept away from flammable gases. Leakage gas that surround the air
conditioner may cause fire.
5. Do not remove plug by pulling the cord, pull the plug body only. Otherwise overheating
and fire would happen.
6. Please remove the plug if not using air conditioner for a long time. Overheating and fire
would happen if much dust in plug.
7. Clean the unit only after shutting off the power to prevent from shock or damage to the
unit.
8. Do not use air conditioner for other purpose. The air conditioner is not suitable to
conserve precise instrument, foodstuff, plant, etc.
9. Do not put the heater in front of the air conditioner. Incomplete burning may release
toxic gas carbon monoxide.
10. Do not use water to clean the air conditioner, it may cause a shock.
11. Please check the reliability of the unit's brackets after a long term application. If the
bracket is defective, the outdoor unit may drop or become damaged.
12. Do not get on the outdoor unit or put anything on it to prevent from drop.
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3. STRUCTURE
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4. OPERATION METHOD
Item
Function
Auxiliary controller
Test
In 'Test' position, the compressor will start immediately and the unit
work in cooling. This position is used for testing in factory and do not
use it random.
Auto
In 'Auto' position, the unit is not controlled by the remote controller
and it will work automatically.
Remote
In 'Remote' position, the unit is controlled by the remote controller.
Please set this position as normal operation.
LED Display
Indicating of the power, It will indicate when the power is on. There is
something wrong with the main power source, transformer or
rectification circuit when it does not indicate
Indicating of defrosting
Indicating of compressor running
Indicating of set temperature. It will display problem code"E1"to"E6".
Such as,
E1: Communication broken
down.
E3: Overload protection of
compressor
E5: Exhaust over temperature.
E2:Overload of compressor's
current
E4: IPM protection.
E6: Protection on prevent
frosting.
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.OPERATION METHOD
Installation of batteries:
Remove the cover of batteries box
Insert two batteries. Make sure that the batteries are inserted in the correct direction.
Replace the cover.
1. Point the remote controller at the receiver window.
2. Be sure that there is no ay barrier between the receiver window and the
remote controller. Valid distance is less than 7m.
3. Do not leave any liquid flow into remote controller or place it under the
sunlight or any heat source.
4. Do not fall down the remote controller or expose it to strong impact. A ‘Du’
sound is heard when a signal is received.
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OPERATION METHOD
(C) Operation method
(1) Cooling operation
1. Connect the power supply and press ‘ON/OFF’ to start the unit.
2. Press ‘COOL’ to select the cooling mode.
3. Press ‘+-‘ to adjust the set temperature.
4. Press ‘FAN’ to select the fan speed.
5. Press ‘VANE’ to select the direction and state of the airflow.
Note:
If the humidity in the room is very high, there will be occur some condensed water in
the outlet of louver. Please run in the high speed or select the super function.
Perhaps the LED display ‘E1’ when the temperature is too low. The unit is in
protection.
(2) Heating operation.
1. Connect the power supply and press ‘ON/OFF’ to start the unit.
2. Press ‘HEAT’ to select the cooling mode.
3. Press ‘+-‘ to adjust the set temperature.
4. Press ‘FAN’ to select the fan speed.
5. Press ‘VANE’ to select the direction and state of the airflow.
Note:
Select heating, the set temperature should be higher than indoor temperature,
otherwise the unit will not work.
In order to prevent from blowing cooling air at the beginning of starting, the fan is set
to lag a short period.
In heating, defrosting is automatically controlled during heating. The LED will display
indicating of defrosting. The compressor keeps running and the fans of the indoor and
outdoor unit will pause. After defrosting, the unit works in heating.
(3) Clean operation
1. Connect the power supply and press ‘ON/OFF’ to start the unit.
2. Press ‘CLEAN’ to select the cooling mode.
Note:
Select cleaning, it will clean the heat exchange of the indoor unit. It run 10 minutes every
time. You had better use in summer. It is normal that the room temperature has risen a
little when running.
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OPERATION METHOD
Operation method
(4) Ventilating operation
1. Connect the power supply and press ‘ON/OFF’ to start the unit.
2. Press ‘VENT’ to select the cooling mode.
3. Press ‘FAN’ to select the fan speed.
4. Press ‘VANE’ to select the direction and state of the airflow.
Note:
In ventilating mode, the sleep function will not take effect.
The air conditioner cannot adjust the room temperature.
(5) Drying operation
1. Connect the power supply and press ‘ON/OFF’ to start the unit.
2. Press ‘DRY’ to select the cooling mode.
3. Press ‘VAN’ to select the direction and state of the airflow.
Note:
During drying, the air conditioner operates on and off, the on/off time is automatically
controlled.
During drying, the sleep function will not take effect, and the timing function can be
set.
During drying, the indoor unit fan runs at low speed. Press ‘FN’ will not take effect.
(6) Super function
1. When in cooling, you can press ‘SUPER’ to speed the cooling or lengthen the distance
of airflow. The room temperature will drop more quickly.
2. When in heating, you can press ‘SUPER’ to speed the heating or lengthen the distance
of airflow. The room temperature will rise more quickly.
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OPERATION METHOD
Operation method
(6) Timing and sleep function
1. Successively press "TIME" to select time off and time on.
Please use "+ -" to set the desired time within the flashes of time shown. In timing function,
the time shown is the timing time.
2. Successively press "TIME" to select sleep function. In sleep function, the unit will stop
automatically after 8 hours. The unit works in comfortable sleep mode and regulates the
room temperature to be suitable for you, and creates a comfortable surrounding for you
while power saved.
(7) Clock function
1. Press "CLOCK" and "+ -" to adjust the current time.
2. The remote controller has clock display. It indicates the current time when unit is not in
timing mode, and indicates timing time when in timing mode.
(8) Louver function
1. The direction of the vertical airflow is adjusted by the horizontal louvers. Press "VANE"
to adjust. At certain position of louver movement, press "VANE", the louvers stop swing at
the required position and become directional airflow.
2. The direction of the horizontal airflow is manually adjusted by the vertical louver to your
required position.
1. Do not turn the horizontal louvers by hand. Otherwise some parts may become
damaged and the louvers will miss the proper place being presented during operating with
the remote controller.
2. If the louvers become out of place, it can be reset after the machine is closed,
unplugged and restarted.
3. Do not set the louvers downwards, leftwards or rightwards, otherwise water may drop
from the indoor unit's outlet when cooling or drying in places with high humidity.
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OPERATION METHOD
OPERATION METHOD
(9) Auto mode
1. Set the auxiliary controller in 'Auto' and the unit works automatically.
2. Under auto operation, the unit works automatically according to indoor temperature.
3. Under auto operation, the unit is out of control of the remote controller.
Room temperature
Mode
Set temperature
≧28℃
Cooling
28℃
24℃―28℃
Pause
/
≦23℃
Heating
23℃
(10) Test mode
Set the auxiliary controller in' Test', the unit will work in cooling mode. The unit will stop
work automatically after 30 minutes. This mode is used for testing in factory.
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5. OPERATION GUIDE
Set temperature to proper level. For
your health and saving energy, the
temperature shouldn't be set too low or
too high.
Set suitable air flow direction. Best effect
with horizontal louvers swing down in
heating and flat in cooling.
In order to enhance cooling efficiency,
you should close the door, window and
window curtain, avoid solarization
directly.
Please regularly clean the air strainer, if
it is blocked the heating/cooling
efficiency will reduce. Clean the air
strainer once every two weeks at least,
dry it after cleaning.
Do not obstruct the air outlet of outdoor
unit or else reduce heating/cooling
effect.
Properly select timing or sleeping
function on your demand only.
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6. MAINTENANCE
(a) Clean the air strainer
Clean the air strainer
Because there is dust in the room, please clean the air strainer regularly. Follow the
direction below:
1) Open the front panel.
2) Pull the air strainer and clean it.
Clean dust in the air strainer with dust collector or washing in cold water. Then air
in shady place.
(b) Maintenance
A. When the unit will not be used for for a long time
Run in ventilating mode for 3~4 hours to dry the indoor unit
Switch off the air conditioner and unplug it
Take out the batteries in the remote controller
Clean the air strainer
Clean dust and rubbish on the outdoor unit
If the outdoor unit is rusty, the position rusted should be painted to prevent
expanding.
B. Please check the unit before use, after a long time period of no operation
Check the reliability of earthing
Check if any obstacle clogging air intake and air outlet of outdoor unit
Check if drain hose is damaged
Check if any damage occurred of bracket of outdoor unit
Check if batteries in remote controller require replacement
Running the air conditioner for 15minutes, if temperature difference between
intake air and exhausted air in cooling mode is ≥8°C, that is normal.
1. Turn power off during cleaning and maintenance.
2. Do not clean the units with water or wet them, there is a danger of shock.
3. Do not use water with temperature ≥40°C to clean air conditioner or air strainer, or may
cause distortion.
4. Volatile liquid like gasoline will damage the surface of air conditioner.
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7. TROUBLE CHECKING
Trouble checking
Following are not troubles, so please check again before calling for service.
Phenomena
Analyze
The air conditioner will not
start immediately
After stopping, the air conditioner will start again after 3
minutes.
At the moment of starting,
sometimes peculiar smell is
emitted.
The reason is air conditioner suck into and blow out again
the smell of furniture and cigarette when it conditioning the
air.
Slight flowing noise will be
heard while the unit is
running.
This is the noise of refrigerant in the refrigerant cycle.
Sometimes mirage appears
in cooling mode
This is caused by quick freezing of the air.
Sometimes light sound of
cackle is heard while the
unit is powered on/off.
This is caused by grating of swell of some parts like front
panel causing by the varieties of temperature.
The air conditioner doesn’t
work.
Check if power is off.
Check if plug is unplugged.
Check if circuit breaker is open.
Check if voltage is normal.
Check if the temperature setting is correct.
Check if timed on function is properly set.
Performance of cooling and
heating of air conditioner is
bad.
Check if the temperature setting is proper.
Check if any obstacle clogging air inlet and outlet of outdoor
unit.
Check If the air strainers are clogged by dust
Check if airflow speed is set at low speed.
Check if there are any other heat sources.
Check if all the windows and doors are closed
The remote controller will
not work.
Check if the batteries' power is in full, otherwise replace
them.
Check if the distance is in the receivable range or there are
any barriers.
Check if auxiliary controller of indoor unit is set at 'Remote.'
There is big noise when
running.
Check if installation of air conditioner is not horizontal.
The LED display defrosting
in heating, indoor unit stops
working for 10 minutes.
The unit is thawing out frost piles on the outdoor unit at the
moment.
Do not repair the air conditioner by yourself, improper reparation may cause
shock or fire.
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Trouble checking
Please shut off the power if there is abnormity as following, and contact the agent.
There is harsh noise when the air conditioner working.
The fuse and breaker often act.
The power cord and plug are very hot.
The indoor unit leaks water.
The surface of the unit becomes electriferous.
There is peculiar smell during the air conditioner working.
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8. INSTALLATION
(a) Requirement of indoor unit
* Install air conditioner on a rigid wall without vibration and level it.
* No obstacle in front of air intake and outlet grills.
* Keep away from heat sources, flammable gases and places with high humidity.
* Do not expose the front panel to sunlight directly, should not have strong magneto
electric disturbance in the using occasion.
* Convenient to connect with outdoor unit, exhaust water can be drained easily.
* Near the power outlet or special cable.
* Leave enough space for convenient maintenance.
* The indoor unit should be set up higher than the eye level.
b) Requirement of outdoor unit
* The outdoor unit should be installed on a rigid base.
* It is necessary to leave certain space around the outdoor unit.
* To prevent from rain and direct sunlight, a shelter is needed.
* The unit must be away from heat sources and flammable gases.
* Avoid neighborhood trouble caused by noise and hot air.
Air conditioner is not suitable for using in the following working condition:
Vehicles and vessels
Places with high oil fumes
Places with high humidity like bathroom
and basements.
High corrosive places like sulfur springs.
Special condition
Places with high frequency equipment
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INSTALLATION
c) Installation step
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INSTALLATION
(1) Install wall-mounted plate
1. Fix the location of wall-mounted plate according to the installation position of indoor
unit and the direction of pipes. Please leave enough place for installation.
2. The wall-mounted plate should be fixed horizontally and vertically, or the water will
drop on the floor.
3. The wall-mounted plate is directly fixed to the wall with 6 screws at least.
4. The wall-mounted plate should be able to bear a weight of 50kg.
(2) Drill hole
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INSTALLATION
(3) Requirement for electricity
Note:
Use a special power circuit with suitable capacity for the air conditioner. (≧16A)
Select proper fuse and match with a leakage protector.
The air conditioner should be equipped with a special switch, a plug and earthed
reliably.
Do not change power cord or plug.
The voltage range of the power supply should be 220±10%.
(4) Install the connecting pipes
Note:
Never turn the nuts off from the connecting pipes’ ends before connecting the pipes of
indoor and outdoor units.
After turning the nuts off from the connecting pipes’ ends, the pipes should be
connected immediately to prevent dust and water entering the system.
The tie-in nut can not be fixed excess tight or loose, otherwise leakage will easily
occur.
If pipes need to be bent when connecting, attention must be paid not to bend the pipes
shriveled, the bending radius should be over 10cm.
Frequently bending or stretching the pipe will harden it, so bending a pipe in the same
section should not be over 3 times.
Before bending the pipes, please arrange the wires, drain hose and pipes. Do not
damage the drain hose.
Be careful when bending, do not damage the heat insulation layer.
Do not remove the pipe strap when connecting.
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INSTALLATION
1. Please select s suitable direction of the connecting pipe according to what you need, a
slot should be sawed for the passing of the connecting pipes.
2. Remove the nuts from the connecting pipes and pipes inlets of the indoor unit.
3. Drop a little refrigerant oil to the flare fitting of connecting pipe, then align the flare
fitting with the outlets and tightly secure the nuts.
4. To bind the connecting pipes, power wire and drain hose together with binding belt.
The drain hose must be set below.
5. Hand the indoor unit to the wall-mounted plate, move the unit to ensue if it is fixed,
press the left and right of the unit with hands till a sound of ‘click’.
(5) Installation of the drain hose
1. The drain hose should be distributed downward so the water can drop, the hose can
not be skew, undulant or scraggly, and do not put the end of the hose to the water.
2. If the drain hose is not long enough, additional hose can be connected with, the hose
in the room should be bound with heat insulation material.
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INSTALLATION
(6) Connect the pipes of indoor and outdoor unit
1. Drop a little refrigerant oil to the flare fitting of connecting pipes, then align the flare
fitting with the outlets and tightly secure the nuts.
2. Two spanners should be used when connecting the indoor unit connecting pipes
especially for the liquid pipe. If fixed excess fasten the pipe will be distorted and
damaged.
3. Length of single connecting pipe allow max.length (A): 7m;
4. The max fall of connecting pipe (B): 4m
5. Refrigerant must be added 30g/1m as the connecting pipes lengthened.
(7) Air exhausting of system
Air exhausting of system must be discharged from gas valve.
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INSTALLATION
(8) Leakage checking
Method of leakage checking
Special leakage checker
Turn on the checker, and set the checker on ‘auto’, and set the sensibility on
10Stdcc/s. Put the finger to zero and preheating for 2-3 minutes. Make sure the
checker is OK.
Keep the sensor near the surface to detect for 2-5mm, and move it slowly. When the
checker gives a warning, it need check again. If the checker does not warn, it shows
the leakage doesn’t occur. If the checker gives a warning continuously, it shows the
leakage occurs.
Soap water leakage check
Dip sponge or cloth in soap water, then coat the soap water to checking point with it.
Check if there is any bubble. If yes, repair it then check again until there is no leakage.
After the leakage checking finished, wipe off the soap water and bind the pipes.
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INSTALLATION
(9) Connect the power wire between the units
1. Please remove the handle before connecting the wires, and install them after
connection.
2. When connect the wires, the color of wires should be corresponding to the color of the
terminal board.
3. When connecting, the earth wire (YL/GRN) should be connected first then the
current-carrying wires (BRN….). When disconnecting, the current-carrying wires should
be disconnected first, then the earth wires.
4. The ends of wires must be inserted firmly into the terminal board and tightened with
screws, otherwise the air conditioner cannot operate normally and some accident may
occur even. Connect the communication cable connector reliably.
5. Remove the screw of wire clip cover, and locate the power wire between the cover and
base.
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INSTALLATION
(10) Adding refrigerant
The method of adding refrigerant
1. Let the unit run in cooling mode.
2. Unscrew the nut of the gas valve.
3. Clamp the power wire of the unit with a pincers ammeter or balance the refrigerant pot
with a balance (or an electron balance).
4. Screw the tie-in nut of the refrigerant charging pipe to the charging hole of the unit just
a little.
5. Open (just half) the knob valve of the refrigerant pot.
6. After 3 seconds, screw the tie-in nut of the refrigerant charging pipe.
7. Read the number of the pincers ammeter or electron balance. Refrigerant charging
finished.
8. Close the knob valve of the refrigerant pot, remove the pot, seal and screw the nub of
the refrigerant charging hole of the gas valve.
1. If adding refrigerant, it must be charged from the charging hole of the gas
valve.
2. The supplementary of refrigerant must be performed during cooling
operation.
3. Do not charge the liquid refrigerant directly.
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INSTALLATION
(11) Installation of drain hose assembly
Note:
1. If you want the drain of outdoor unit to be distributed in certain direction, then before
installing the outdoor unit to the bracket:
(1) Install drain hose fitting into the drain hole of the outdoor unit bottom plate;
(2) Install drain hole (prepare it yourself).
2. If the drain hose fitting if used, the outdoor unit should be installed in a bracket more
than 3 cm.
(12) Finishing
1. Pack up the connecting wires and pipes.
2. Sealing the gap of the wall hose with putty to prevent rain water and wind from going
into the room.
3. Fix the drain hose to the outside wall.
4. Cover the hole in the indoor wall with the protective sleeve.
5. Operate the air conditioner and check if it can run normally.
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9. Note:
1. Rated conditions
(1) Cooling: inside: 27℃ DB outside: 35℃DB
10℃ DB outside: 24℃DB
Heating: inside: 20℃ DB outside: 7℃DB
15℃ DB outside: 6℃DB
(2) Horizontal louver is set in initial position, indoor fan speed is max.
2. Max. conditions:
Cooling: inside: 32℃ DB outside: 35℃DB
23℃ DB outside: 24℃DB
Heating: inside: 27℃ DB outside: 24℃DB
? ℃ DB outside: 18℃DB
No notification of any update of the products. Details are subject to the label
stuck on relative models.
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