Download Service Manual

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Installing, starting up, and servicing air conditioner can be
hazardous due to system pressure, electrical components,
and equipment location, etc.
Only trained, qualified installers and service personnel are
allowed to install, start-up, and service this equipment.
Untrained personnel can perform basic maintenance functions such as cleaning coils. All other operations should
be performed by trained service personnel.
Make sure the outdoor unit is installed on a stable, level
surface with no accumulation of snow, leaves, or trash
beside.
When handling the equipment, observe precautions in the
manual and on tags, stickers, and labels attached to the
equipment. Follow all safety codes. Wear safety glasses
andwork gloves. Keep quenching cloth and fire extinguisher
nearby when brazing.
Follow all the installation instructions to minimize the risk
of damage from earthquakes, typhoons or strong winds.
Read the instructions thoroughly and follow all warnings or
cautions in literature and attached to the unit. Consult local
building codes and current editions of national as well as
local electrical codes.
Recognize the following safety information:
Warning
Incorrect handling could result in
personal injury or death.
Caution
Incorrect handling may result in
minor injury,or damage to product
or property.
Warning
All electric work must be performed by a licensed technician
according to local regulations and the instructions given in
this manual.
Before installing, modifying, or servicing system, main
electrical disconnect switch must be in the OFF position.
There may be more than 1 disconnect switch. Lock out
and tag switch with a suitable warning label.
Never supply power to the unit unless all wiring and tubing are completed, reconnected and checked.
This system adopts highly dangerous electrical voltage.
Incorrect connection or inadequate grounding can cause
personal injury or death. Stick to the wiring diagram and
all the instructions when wiring.
Have the unit adequately grounded in accordance with
local electrical codes.
Have all wiring connected tightly. Loose connection may
lead to overheating and a possible fire hazard.
All installation or repair work shall be performed by your dealer or a specialized subcontractor as there is the risk of fire,
electric shock, explosion or injury.
Make sure the ceiling/wall is strong enough to bear the
weight of the unit.
Make sure the noise of the outdoor unit does not disturb
neighbors.
Avoid contact between refrigerant and fire as it generates
poisonous gas.
Apply specified refrigerant only. Never have it mixed with
any other refrigerant. Never have air remain in the
refrigerant line as it may lead to rupture and other hazards.
Make sure no refrigerant gas is leaking out when installation is completed.
Should there be refrigerant leakage, the density of refrigerant in the air shall in no way exceed its limited value,
or it may lead to explosion.
Keep your fingers and clothing away from any moving
parts.
Clear the site after installation. Make sure no foreign objects are left in the unit.
Always ensure effective grounding for the unit.
Caution
Never install the unit in a place where a combustible gas
might leak, or it may lead to fire or explosion.
Make a proper provision against noise when the unit is
installed at a telecommunication center or hospital.
Provide an electric leak breaker when it is installed in a
watery place.
Never wash the unit with water.
Handle unit transportation with care. The unit should not
be carried by only one person if it is more than 20kg.
Never touch the heat exchanger fins with bare hands.
Never touch the compressor or refrigerant piping without
wearing glove.
Do not have the unit operate without air filter.
Should any emergency occur, stop the unit and disconnect the power immediately.
Properly insulate any tubing running inside the room to
prevent the water from damaging the wall.
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Capacity ratio(%)
Capacity ratio(%)
80
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70
60
40
60
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Conditions
Indoor:DB27°C WB19°C
Indoor air flo w Supper High
Pipe length 5m
40
32 33 34 35 36 37 38 39 40 41 42 43 44 45
Outdoor temp.(°C)
Conditions
Indoor:DB20°C
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20
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GAS SIDE
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4-Way valve
Muffler
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HEAT
EXCHANGE
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ON/OFF
Press it to start or stop operation.
2
Press it to decrease temperaturesetting.
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3
Press it to increase temperaturesetting.
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Press it to set HEALTH or AIR function.
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7
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2
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10
7
11
9
SLEEP
TEMP
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Press it to set auto-on timer.
12
11
CLOCK
Press it to set clock function.
13
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16
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Press it to set auto-off timer.
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15
TURBO
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Press it to turn on/off the light.
16
X-FAN
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17
24
23
22
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17
MODE icon:
If MODE button is pressed,current operation mode icon
pumpmodels) will show.
18
SLEEP icon :
19
LIGHT icon:
20
TEMP icon:
(AUTO),
( COOL),
(DRY),
(FAN) or
(HEAT only for heat
is displayed by pressing the SLEEP button. Press this button again to clear the display.
is displayed by pressing the LIGHT button. Press LIGHT button again to clear the display.
Pressing TEMP button,
circularly.
21
(set temperature),
(indoor ambient temperature)，
(outdoor ambient temperature) and blank is displayed
Up & down swing icon:
is displayed when pressing the up & down swing down button. Press this button again to clear the display.
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22
LOCK icon:
23
SET TIME display:
is displayed by pressing "+" and “-” buttons simultaneously. Press them again to clear the display.
After pressing TIMER button,ON or OFF will blink.This area will show the set time.
24
DIGITAL display:
This area will show the set temperature. In SAVE mode,"SE" will be displayed.
25
AIR icon:
is displayed when pressing the AIR button.Press this button again to clear the display.
30
29
28
31
26
HEALTH icon:
27
X-FAN icon:
28
TURBO icon:
29
FAN SPEED display:
27
26
is displayed when pressing the HEALTH button.Press this button again to clear the display.
is displayed when pressing the X-FAN button. Press this button again to clear the display.
is displayed when pressing the TURBO button.Press this button again to clear the display.
Press FAN button to select the desired fan speed setting(AUTOLow-Med-High).Your selection will be displayed in the LCD windows,
except the AUTO fan speed.
30
I FEEL icon:
31
8℃ Heating icon:
is displayed when pressing the I FEEL button.Press this button again to clear the display.
is displayed when Pressing “TEMP” and “CLOCK” simultaneously in Heat mode.
1
Remote Controller Description
ON/OFF :
Press this button to turn on the unit. Press this button again to turn off the unit.
2
-：
Press this button to decrease set temperature. Hold it down for above 2 seconds to rapidly decrease set temperature. In AUTO mode,
set temperature is not adjustable.
3
+：
Press this button to increase set temperature. Hold it down for above 2 seconds to rapidly increase set temperature. In AUTO mode,
set temperature is not adjustable.
4
MODE :
Each time you press this button, a mode is selected in a sequence that goes from AUTO, COOL,DRY, FAN,and HEAT *, as the following:
AUTO
COOL
DRY
FAN
HEAT*
*Note:Only for models with heating function.
After energization, AUTO mode is defaulted. In AUTO mode, the set temperature will not be displayed on the LCD, and the unit will
automatically select the suitable operation mode in accordance with the room temperature to make indoor room comfortable.
5
FAN :
This button is used for setting Fan Speed in the sequence that goes from AUTO,
，　to
Auto
Low speed
Medium speed
High speed
then back to Auto.
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6
SWING:
Press this button to set up & down swing angle, which circularly changes as below:
OFF
This remote controller is universal. If any command
,
or
is sent out,the unit will carry out the command as
indicates the guide louver swings as:
7
I FEEL:
Press this button to turn on I FEEL function. The unit automatically adjust temperature according to the sensed temperature. Press this
button again to cancel I FEEL function.
8
/
Press this button to achieve the on and off of healthy and scavenging functions in operation status. Press this button for the first time to
start scavenging function; LCD displays“
”. Press the button for the second time to start healthy and scavenging functions simultaneously; LCD displays“
” and “
” . Press this button for the third time to quit healthy and scavenging functions simultaneously. Press
the button for the fourth time to start healthy function; LCD display “
”. Press this button again to repeat the operation above.
9
SLEEP:
Press this button to go into the SLEEP operation mode. Press it again to cancel this function. This function is available in COOL , HEAT
(Only for models with heating function) or DRY mode to maintain the most comfortable temperature for you.
10
TEMP:
Press this button, could select displaying the indoor setting temperature or indoor ambient temperature.When the indoor unit firstly power
on it will display the setting temperature, if the temperature's displaying status is changed from other status to"
",displays the
ambient temperature, 5s later or within 5s, it receives other remote control signal that will return to display the setting temperature. if the
users haven't set up the temperature displaying status,that will display the setting temperature.
11
TIMERON :
Press this button to initiate the auto-ON timer. To cancel the auto-timer program, simply press this button again.
After press of this button,
disappear sand " ON " blinks .00:00 is displayed for ON time setting. Within 5 seconds, press + or - button
to adjust the time value. Every press of either button changes the time setting by 1 minute. Hold down either button to rapidly change the
time setting by 1 minute and then 10 minutes. Within 5 seconds after setting, press TIMER ON button to confirm.
12
CLOCK :
Press CLOCK button,
blinking. Within 5 seconds, pressing + or - button adjusts the present time. Hold down either button for above
2 seconds to increase or decrease the time by 1 minute every 0.5 second and then by 10 minutes every 0.5 second. During blinking after
setting, press CLOCK button again to confirm the setting, and then
will be constantly displayed.
13
TIMER OFF :
Press this button to initiate the auto-off timer. To cancel the auto-timer program, simply press the button again. TIMER OFF setting is the
same as TIMER ON.
14
TURBO:
Press this button to activate / deactivate the Turbo function which enables the unit to reach the preset temperature in the shortest time. In
COOL mode, the unit will blow strong cooling air at super high fan speed. In HEAT mode, the unit will blow strong heating air at super high
fan speed.
15
LIGHT:
Press LIGHT button to turn on the display's light and press this button again to turn off the display 's light. If the light is turned on ,
displayed. If the light is turned off,
disappears.
16
is
X-FAN:
Pressing X-FAN button in COOL or DRY mode, the icon
is displayed and the indoor fan will continue operation for 10 minutes in order
to dry the indoor unit even though you have turned off the unit.
After energization, X-FAN OFF is defaulted. X-FAN is not available in AUTO, FAN or HEAT mode.
17
Combination of "+" and "-" buttons: About lock
Press "+ " and "-" buttons simultaneously to lock or unlock the keypad. If the remote controller is locked,
is displayed. In this case,
pressing any button,
blinks three times.
18 Combination of "MODE " and "-" buttons : About switch between Fahrenheit and centigrade At unit OFF, press "MODE" and "- "
buttons simultaneously to switch between ℃ an d ℉ .
19
Combination of " TEMP " and "CLOCK" buttons : About Energy-saving Function
Press “TEMP” and “CLOCK” simultaneously in COOL mode to start energy-saving function. Nixie tube on the remote controller displays
“SE”. Repeat the operation to quit the function.
20
Combination of " TEMP " and "CLOCK" buttons : About 8℃ Heating Function
)XQFWLRQDQG&RQWURO
Press “TEMP” and “CLOCK” simultaneously in HEAT mode to start 8℃ Heating Function Nixie tube on the remote controller displays “
and a selected temperature of “ 8℃”. (46 if Fahrenheit is adopted). Repeat the operation to quit the function.
21
About Back-lighting Function
The unit lights for 4s when energizing for the first time, and 3s for later press.
Replacement of Batteries
1.Remove the battery cover plate from the rear of the remote controller.
(As shown in the figure)
2.Take out the old batteries.
3.Insert two new AAA1.5V dry batteries, and pay attention to the polarity.
4. Reinstall the battery cover plate.
★Notes:
●When replacing the batteries, do not use old or different types of batteries,
otherwise, it may cause malfunction.
●If the remote controller will not be used for a long time, please
remove batteries to prevent batteries from leaking.
●The operation should be performed in its receiving range.
●It should be kept 1m away from the TV set or stereo sound sets.
●If the remote controller does not operate normally, please take the
batteries out and reinsert them after 30 seconds.If it still can't operate properly,
replace the batteries.
Sketch map for
replacing batteries
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drain hose
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outdoor unit connection
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voltage marked on the nameplate?
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connection installed correctly and securely?
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or damage the unit.
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or damage the parts.
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It may cause electrical leakage.
Is the power cord specified?
It may cause electric malfunction
or damage the parts.
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and refrigerant capacity recorded?
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(1) Malfunction of temperature sensor
Start
Is the wiring
terminal between temperature
sensor and the controller loosened or
poor ly contacted?
yes
Insert the temperature
sensor tightly
no
no
Is there short circuit due to tri-pover
of the par ts?
Malfunction is
eliminated.
yes
Make the parts upright
no
no
Is the temperature
sensor normal according to the
Resistance Table?
Malfunction is
eliminated.
yes
no
Replace it with a
temperature sensor
of the same model
yes
no
Malfunction is
removed.
yes
Replace the controller with
one of the same model
yes
End
7URXEOHVKRRWLQJ
(2) PG motor (indoor fan) does not operate (H6)
“H6”is
displayed on
the unit.
Stir the fan blade
with a hand when
the unit is DE ENERGIZED.
Does the
blade rotate
unsmoothly?
Yes
Is the
malfunction
eliminated?
No
No
Is the
feedback
terminal of PG
motor loose?
Yes
Insert the feedback
terminal tightly .
Is the
malfunction
eliminated?
No No
Is the
control terminal
of PG motor
loose?
Reinstall the motor
and the blade to
make it rotate
smoothly.
Yes
Yes
Insert the control
terminal tightly.
Yes
Is the
malfunction
eliminated?
No
No
Re-energize
to turn on the unit;
measure within 1 min after the
louvers are opened whether the output Yes
voltage on the control terminal
of the PG motor is over 50V?
No
No
Mainboard
malfunction;
Replace it.
Yes
Replace the fan
motor.
Is the
malfunction
eliminated?
Yes
End
7URXEOHVKRRWLQJ
(3) Jumper cap malfunction (C5)
C5 is displayed
on the unit.
Is there jumper cap on the
controller?
Yes
No
Install a matching
jumper cap.
Is the
malfunction
eliminated?
No
Is the jumper cap inserted
incorrectly or improperly?
No
No
Yes
Re-insert the jumper
cap
Is the
malfunction
eliminated?
Yes
Replace the jumper
cap
Is the
malfunction
eliminated?
Yes
Yes
No
The mainboard is
defined abnormal
replace it
End
7URXEOHVKRRWLQJ
2YHUFXUHQWSURWHFWLRQ(
Start
Is the supply voltage unstable with big fluctuation?
yes
no
Is the supply voltage too low with overload?
Normal fluctuation is within 10% of the rated voltage on the
nameplate
Malfunction is eliminated.
yes
Malfunction is eliminated.
yes
Malfunction is eliminated.
yes
no
yes
Adjust the supply voltage to maintain it within normal range
no
no
Is the indoor / outdoor heat exchanger too dirty,
or are the air inlet and outlet blocked?
yes
no
no
Is the fan motor running abnormally; is the fan speed too
low or does it fail to run?
yes
no
Measure the current of live wire
on the main board with a clamp ampere meter. Is the
current higher than the value of the overcurrent
protection?
Clean the indoor and outdoor heat exchangers and remove
the blockage of air inlet and outlet
Check the motor and reinstall the motor to have the fan run
normally
Malfunction is eliminated.
yes
Malfunction is eliminated.
yes
no
no
Replace the controller
yes
no
Is there blockage inside the system?
(Filth blockage, ice plug, greasy blockage, the Y-valve hasn’ t
been opened completely)
yes
Flush the heat exchangers with high pressure nitrogen
Malfunction is eliminated.
yes
no
no
Is the compressor running
abnormally? Is there abnormal sound or oil leakage is
the temperature of the shell too high, etc.?
yes
Replace the compressor
no
no
Replace the control
panel
End
Malfunction is eliminated.
yes
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