SERVICESERVICE
MANUALMANUAL
SPLIT TYPE AIR CONDITIONERSPLIT TYPE AIR CONDITIONER
CONTENTS
1.PART NAMES AND FUNCTIONS...................
2.SPECIFICATION............................................
3.OUTLINES AND DIMENSIONS.......................
4.WIRING DIAGRAM.........................................
5.REFRIGERANT SYSTEM DIAGRAM...............
6.CONTROL MODE ................................
7.SERVICE FLOW CHART......................................
8.ELECTRIC .CONTROL.............................
9.SENSOR PARAMETER................................
10.DISASSEMBLY INSTRUCTIONS...................
11.PARTS LIST.................................................
HKEB-HCNB-261-X
HKEB-HCNB-351-X
1. PART NAMES AND FUNCTIONS
1.Diagram of Structure
This air conditioner consists of an indoor unit and an outdoor unit. You can
control the air conditioner with the remote controller.
NOTE
Air Intake
Air Outlet
Remote Controller
Refrigerant Tubes
Outdoor(Condensing)Unit
Drain Hose
Air from the room is drawn into this section and passes
through air filters which remove dust.
Conditioned air is blown out of the air conditioner through
the air outlet.
The wireless remote controller controls power ON/OFF,
operation mode selection, temperature, fan speed, timer
setting, and air sweeping.
The indoor and outdoor units are connected by copper
tubes through which refrigerant gas flows.
The outdoor unit contains the compressor, fan motor, heat
exchanger coil, and other electrical components.
Moisture in the room condenses and drains off through this hose
Air filter
Air outlet
Impeller
Blue backlight LCD screen
Indoor sensor
Remote controller
Tubes and cable
Drain hose
Air inlet (rear and side)
Air outlet
Water drainage
Indoor unit
Outdoor unitt
Air intake
Appearance of the indoor may differ from some the picutres in the manual.
22、、SSPPEECCIIFFIICCAATTIIOONN
NOTE :Test conditions：Cooling : Indoor: DB27℃/ WB19℃ Heating: Indoor: DB20℃/ WB15℃
Outdoor DB35℃/ WB24℃ Outdoor DB7℃／ WB 6℃
Model HKEB -HCNB -261X
Function Cooling Heating
Power supply 220-230V～ 50Hz
Capacity k W 2.5 (0,39-3,2) 3.1 (0,40-3,53)
Dehumidification l /h 1.5
Capacity
Air flow m3/h 800 800
Power outlet A 16
Running current A 3.54/5.89 4.8/8.08
Power input k W 0.53 (0,3-1,05) 0.66 (0,3-1,25)
Auxiliary heater A(KW) --
Starting current A -Power factor % 90％
Electrical data
Compressor motor current A --
Coefficient of performance(C.O.P) 4.7/4.7
Model DA91A1F-22FD
Output W 750
Compressor
Winding resistance (at20℃）
Ω
1.10
Model SIC-37CV-F835-1 Indoor
fan motor Winding resistance (at20℃）
Ω －
Model DR-8938-504A-G Outdoor
fan motor Winding resistance (at20℃）
Ω －
Width mm 870
Height mm 225
Indoor unit
Depth mm 305
Width mm 800
Height mm 565
Dimensions
Outdoor unit
Depth mm 260
Indoor unit kg 11 Weight
Outdoor unit kg 34.5
Liquid pipe mm 6.35 Refrigerant
piping Gas pipe mm 9.52
Air direction 6
Indoor unit dB 46Sound leve l
(Hi)
Outdoor unit dB 53
Indoor unit rpm 1200 Fan speed
(Hi)
Outdoor unit rpm 760
Refrigerant filling capacity(R410A) kg 1.15
RT1(at25℃） k Ω 5
RT2(at25℃） k Ω 5
Special remarks
Sensor
RT 3(at0℃） k Ω 16.44
22、、SSPPEECCIIFFIICCAATTIIOONN
NOTE :Test conditions：Cooling : Indoor: DB27℃/ WB19℃ Heating: Indoor: DB20℃/ WB15℃
Outdoor DB35℃/ WB24℃ Outdoor DB7℃／ WB 6℃
Model HKEB - HCNB - 351 X
Function Cooling Heating
Power supply 220-230V～ 50Hz
Capacity k W 3.5 (0,39-3,98) 4.0 (0,4-4,49)
Dehumidification l /h 1.5
Capacity
Air flow m3/h 800 800
Power outlet A 16
Running current A 4.75/7.0 5.62/9.5
Power input k W 0.98 (0,3-1,3) 0.94 (0,3-1,6)
Auxiliary heater A(KW) --
Starting current A -Power factor % 90
Electrical data
Compressor motor current A --
Coefficient of performance(C.O.P) 3.57/4.26
Model DA91A1F-22FD
Output W 750
Compressor
Winding resistance (at20℃）
Ω
1.10
Model SIC-37CV-F835-1 Indoor
fan motor Winding resistance (at20℃）
Ω －
Model DR-8938-504A-G Outdoor
fan motor Winding resistance (at20℃）
Ω －
Width mm 870
Height mm 225
Indoor unit
Depth mm 305
Width mm 800
Height mm 565
Dimensions
Outdoor unit
Depth mm 260
Indoor unit kg 11 Weight
Outdoor unit kg 34.5
Liquid pipe mm 6.35 Refrigerant
piping Gas pipe mm 9.52
Air direction 6
Indoor unit dB 46 Sound leve l
(Hi)
Outdoor unit dB 53
Indoor unit rpm Fan speed
(Hi)
Outdo or unit rpm
Refrigerant filling capacity(R410A) kg 1.15
RT1(at25℃） k Ω 5
RT2(at25℃） k Ω 5
Special remarks
Sensor
RT 3(at0℃） k Ω 16.44
5.REFRIGERANT SYSTEM DIAGRAM3.OUTLINES AND DIMENSIONS
HKEB - HCNB 261-351 X
＞２５ｃｍ
＞５ｃｍ
＞１０ｃｍ
Outlet
＞４０ｃｍ
5.REFRIGERANT SYSTEM DIAGRAM
3.OUTLINES AND DIMENSIONS
567.5
4.WIRINGDIAGRAM
ＲＯＯＭＳＥＮＳＯＲ
ＣＯＩＬＳＥＮＳＯＲ
CN101
ＦＩＬＴＥＲＢＯＡＲＤ
ＡＩＲ ＯＵＴＬＥＴＳＥＮＳＯＲ
ＤＩＳＰＬＡＹ ＢＯＡＲＤ
ＣＯＮＴＲＯＬＢＯＡＲＤ
2１１２4334655
6
CN102
CN401
CN103
CN104
CN105
ＥＶＡＰＯＲＡＴＯＲ
CN701
CN106
2１１２4334655
6
CN201
CN603
CN602
CN606
CN605
CN604
CN609
CN608
CN607
CN701
ＢＲＮ
ＹＬＷ／ＧＲＮ
ＲＥＤ
ＹＬＷ／ＧＲＮ
ＷＨＴ
ＢＬＫ
ＹＬＷ／ＧＲＮ
ＢＬＵ
ＥＶＡＰＯＲＡＴＯＲ
ＨＯＲＩＺＯＮＴＡＬ
ＦＬＡＰＭＯＴＯＲ１
ＨＯＲＩＺＯＮＴＡＬ
ＦｌＡＰ ＭＯＴＯＲ２
ＶＥＲＴＩＣＡＬ
ＦＬＡＰ ＭＯＴＯＲ
ＤＣ ＦＡＮ ＭＯＴＯＲ
ＥＬＥＣＴＲＩＣ ＷＩＲＩＮＧ ＤＩＡＧＲＡＭ ＯＦ ＩＮＤＯＯＲ ＵＮＩＴ
2
1
0
1
0
1
1
1
1
1
0
1
0
1
1
1
1
7
7
8
8
7
7
8
7
7
8
8
4
3
3
4
6
5
5
6
1
1
2
3
3
44
5
5
6
6
43
2 4
3
3
4
6
5
5
6
HKEB HCNB 261 X
(.52)φ９
(6.35)φ
Ｃｏｍｐｒｅｓｓｏｒ
Ｒｅｒｉｇｅｒａｎｔ ｐｉｐｅ
（Ｗｉｔｈ ｈｅａｔ ｉｎｓｕｌａｔｏｒ）
Ｓｅｒｖｉｃｅ ｖａｌｖｅ
Ｉｎｄｏｏｒｔｅｍｐｅｒａｔｕｒｅ
Ｈｅａｔｅｘｃｈａｎｇｅｒ
ｓｅｎｓｏｒ
Ｆｌａｒｅ ｃｏｎｎｅｃｔｉｏｎ
Ｒｅｆｒｉｇｅｒａｎｔ ｐｉｐｅ
（Ｗｉｔｈ ｈｅａｔ ｉｎｓｕｌａｔｏｒ）
Ｆｌａｒｅ ｃｏｎｎｅｃｔｉｏｎ
Ｓｅｒｖｉｃｅ ｖａｌｖｅ
ＩＮＤＯＯＲＵＮＩＴ
Ｈｅａｔｅｘ ｃｈａｎｇｅｒ
ＯＵＴＤＯＯＲＵＮＩＴ
Ｍｕｆｆｌｅｒ
Ｄｅｓｉｃｃａｔｉｏｎｆｉｌｔｅｒ
４－ｗａｙ ｖａｌｖｅ
Ｈｅａｔｉｎｇ ｃｙｃｌｅ
Ｃｏｏｌｉｎｇ ｃｙｃｌｅ
ｓｅｎｓｏｒ
Ｉｎｄｏｏｒｃｏｉｌ
Ｍｕｆｆｌｅｒ
Ｓｔｒａｉｎｅｒ
φ×５1.500
Ｃａｐｉｌｌａｒｙ ｔｕｂｅ
φ×５1.500
Ｓｔｒａｉｎｅｒ
Electric expansion valve
HKEB HCNB 351 X
Limitations to refrigerant piping length and height difference
Maximum allowed refrigerant piping length (single line) and height difference
Models
HKEB-HCNB 261X
HKEB-HCNB 351X
Max. piping length
(m), single line: A
Piping diameter (mm)
Liquid side Gas side
9.52
6.35
9.52
6.35
Height Difference (m)
Indoor Unit above
Indoor unit below
15
15
7
7
7
7
Max. allowed
height difference:
7 metres
Max. refrigerant piping length (A): 15 metres
Indoor
Unit
Outdoor
Unit
Additional refrigerant charge (R410A refrigerant)
Models
HKEB-HCNB 261X
HKEB-HCNB 351X
Precharged amount
(g) up to 7 metres
1150
1150
Additional R410A charge according to piping length
7m
0g
0g
10m
75g
75g
15m
200g
200g
Calculation of the additional refrigerant charge: R410A g = [(A-7) meters x 25g/m]
Temperature range for regular operation:
Outdoor air temperature: • In Cooling mode: +16°C ~ +43°C
• In Heating mode: -15°C ~ +30°C
If this appliance is operated under temperature conditions out of the above specified temperature range, this may result
in malfunction and/or operation could stop due to intervention of built-in protective functions.
5.REFRIGERANT SYSTEM DIAGRAM
EVACUATION PROCEDURES
Connect the refrigerant pipes (both the liquid and gas
pipes) between the indoor and the outdoor units.
Remove the service port cap of the stop valve on the sid e o f the
outdoor unit gas pipe. (The sto p valv e w ill no t wor k in i ts initial
state fresh out of the factory (totally closed with cap on).
Connect the gage manifold valve and the vacuum pump to the service port o f the stop valve on the ga s pipe
side of the outdoor unit.
Run the vacuum pump for more than 15 minutes and at this time confirm that the pressure gage indicates
-0.1 Mpa (-76 cmHg).
Check the vacuum with the gage manifold valve, then close the gage manifold valve, and stop the
vacuum pump.
Leave it as is for one or two minutes .Make sure the pointer of the gage manifold valve remains in the.
same position.
Close
Open
Hexagonal
wrench
Stop valve
pipe
Connection
Gage manifold valve
Stop valve
Liquid pipe
Stop valve
Hexagonal
wrench
Gas pipe
Caps
Service port
Vacuum pump
Remove the gage manifold valve qu ickly from the ser vice port of the stop valve.
After refrigerant pipes are connected and evacuated, fully open all stop valves
on gas and liquid pipe sides.
Operating without fully opening lowers the performance and causes trouble.
£º
Pipe length
7m maximum
No gas charge is
needed.
Pipe length
exceeding 7m
Charge the prescribed
amount of gas.
Tighten the cap to the service port to obtain the initial status.
Retighten the cap.
Leak test
5.REFRIGERANT SYSTEM DIAGRAM
6.CONTROL MODE
1.Functional features
1.1 The compressor’ s motor system is fitted with DC brushless sensor without position, with
reliable and efficient performance;
1.2 The indoor and outdoor air supply motor is of built-in DC brushless type.
1.3 Throttle control by electronic expansion valve.
2 Main controlling functions
2.1 Controlling functions of the remote controller (see operation and installation manual)
2.2 Display icons of the indoor unit
Indicating lights
“ Simultaneous Operation Power Limitation” indicator: When the “ simultaneous
operation power limitation” function is started, this light goes on.
“ Timing” indicator: It goes on when “ timing” is selected.
“ Sleep” indicator: It goes on when “ sleep” is selected.
“ Night” indicator: No available for this unit.
Room temperature display
Fre
1-30（Hz）S1
31-50（Hz）S1S2
51-70（Hz）S1S2S3
71-90（Hz）S1S2S3S4
91（Hz） S1S2S3S4S5。
Room temperature is displayed in the “House”: The actually measured temperature of the unit
body or the remote controller is displayed.
Outdoor temperature display:
The outdoor temperature is displayed when detected by the outdoor unit. Otherwise, there is no
display.
Working mode display
During operation, such information as cooling, heating, dehumidifying is displayed. When the air
conditioner works in the Automatic Mode, the Auto icon, as well as the cooling/heating
information is displayed.
Fan speed display
The three blades of high, medium and low speeds are shown at the same time. “A” is displayed
when Auto Speed is selected.
Left and right swinging display
S1 S2 S3 S4 S5
6.CONTROL MODE
Surrounding air: K0, K1, K2, K4, K5
Directional air: Left K0, K1, K2, K3
Directional air: Right K0, K3, K4, K5
Directional air: Center K0, K2, K3, K4
Swinging air: K0K1, K0K2, K0K3 respectively according to the actual working status
Error message
Press the Emergency button for over 5 seconds when the power is on, the air conditioner will give
out alarm as follows: indoor unit trouble at the indoor temperature reading area and outdoor unit
trouble at the outdoor temperature area; the message is blinking at a frequency of 1Hz.
3.Temporary switch
3.1 If the remote controller is missing, press the temporary switch and the system starts in the
automatic mode, press the switch again to stop the system. Automatic mode follows:
A indoor temperature> ２６℃ ｃｏｏｌｉｎｇ ｍｏｄｅ ｔｅｍｐｅｒａｔｕｒｅ ｓｅｔｔｉｎｇ ２６℃
B indoor temperature> ２３℃ ｈｅａｔｉｎｇ ｍｏｄｅ ｔｅｍｐｅｒａｔｕｒｅ ｓｅｔｔｉｎｇ ２６℃
C ２３℃≤indoor temperature≥２６℃ ｆａｎ ｍｏｄｅ
Ｉｎｄｏｏｒ ｆａｎ ｓｐｅｅｄ ｉｓ ａｕｔｏｍａｔｉｃ ｉｎ ａｕｔｏｍａｔｉｃ ｍｏｄｅ．
3.2 Hold down the temporary switch for 5 seconds or longer and the system is forced to run in the
cooling mode regardless of indoor temperature.
3.3. How to start the outdoor unit without the indoor unit
Short-circuit the two CN404 terminals on the IPM board of the outdoor unit, and switch on
the power, the air conditioner will start heating operation, and the outdoor fan is working; then
open the short circuit, the air conditioner will start cooling operation (the compressor starts 50
seconds later), and the fan is still working. Cut off the power, the outdoor unit will stop running.
4.Control mode
4.1 Automatic
4.1.1 When the air conditioner is switched on and the remote controller is set to Auto mode, the
air conditioner will select running modes automatically according to the difference
between the room temperature and the setting temperature.
4.1.2 The running mode will be set when the machine is first switched on. Once set, the
running mode cannot be changed within 30 minutes.
4.1.3 If the difference between the room temperature and the setting temperature exceeds 3
degrees, change the running mode immediately.
4.1.4 If the machine is turned off and restarted using the remote controller, the above conditions
are still good.
4.1.5 If the machine is powered off and restarted, the running mode must be re-selected.
4.1.6 The running frequency will be determined by the temperature difference.
4.2 Cooling
4.2.1 In the cooling mode, the preset temperature is determined by the remote controller. The
temperature range is 16℃—30℃.
6.CONTROL MODE
4.2.2 The compressor will start immediately when the machine is first powered on; it will take at
least 3min for the compressor to restart if the machine is restarted.
4.2.3 The fan speed changes in auto mode.
T
setting
- T
indoor
Fan speed T
setting
- T
indoor
Fan speed
1℃
Low
1℃
Low
2℃
Low
2℃
Mid
3℃
Mid
3℃
Mid
4℃
Mid
4℃
High
Temperature
difference
≥5℃
High
Temperature
difference
≥5℃
High
4.2.4 Compressor control
The running frequency of the compressor depends on the difference between the set
temperature and the detected room temperature. The larger the difference, the higher the frequency.
When the room temperature is lower than the set temperature, the compressor stops running
(provided the compressor keeps running for more than 5 minutes).
Min Max Rated Frequency.
15 100 42
4.3 Outdoor fan
One-speed, which runs simultaneously with the compressor.
4.4 Cooling overload
When T
external coil
≥７０℃, the compressor stops. When T
external coil
≤５０℃， the air conditioner
starts automatically in 3 minutes.
4.5 Anti-freezing function, the anti-freezing and frequency limiting functions of the evaporator
are effective:
When T
coil
＞ １０℃, the working frequency of the compressor is not limited;
When T
coil
＜ ７℃, the working frequency of the compressor begins dropping;
When T
internal coil
＜ -1℃ ｆｏｒ ３ minutes, the indoor fan works normally after the compressor is
shut down.
When T
internal coil
≥7℃ and the compressor has stopped working for 3 minutes, the compressor
will restart running.
4.6 Current protection
ｉｓ ｔｈｅ ｎｏｒｍａｌ ｗｏｒｋｉｎｇ ｃｕｒｒｅｎｔ ｖａｌｕｅ ｏｆ Ｅ２ＲＯＭ，Ｉ
ｍａｘ
ｉｓ ｔｈｅ ｃｅｉｌｉｎｇ ｃｕｒｒｅｎｔ ｖａｌｕｅ ｏｆ
Ｅ２ＲＯＭ．
6.CONTROL MODE
Ｉ ＜ ＩＯ －１．５Ａ Ｗｉｔｈｏｕｔ ｌｉｍｉｔａｔｉｏｎ．
Ｉ＞Ｉ
Ｏ
＋１．５Ａ Ｆｒｅｑｕｅｎｃｙ ｄｒｏｐｓ．
Ｉ≥Ｉ
ｍａｘ
Ｏｐｅｒａｔｉｏｎ ｓｔｏｐｓ．
５． Dehumidification
5.1 In the dehumidification mode, the temperature is determined by the remote controller. The
temperature range is 16℃—30℃. The controller will determine the running mode according
to the indoor and outdoor temperature difference.
５．２ When the room temperature is 2℃ higher than the preset temperature, cooling run will be
５．３ Ｔ
ｓｅｔ ｔｅｍｐｅｒａｔｕｒｅ
– Ｔ
ｒｏｏｍ ｔｅｍｐｅｒａｔｕｒｅ
≥１℃ Ｔｈｅ ｃｏｍｐｒｅｓｓｏｒ ａｎｄ ｔｈｅ ｏｕｔｄｏｏｒ ｆａｎ ｓｔｏｐ ｗｏｒｋｉｎｇ，
ａｎｄ ｔｈｅ ｉｎｄｏｏｒ ｆａｎ ｒｕｎｓ ａｔ ａ ｓｐｅｅｄ ｏｆ ６００ ｒｐｍ．
６．Ｈｅａｔｉｎｇ
６．１ Ｗｈｅｎ Ｔ
ｉｎｔｅｒｎａｌ ｃｏｉｌ
≥ ３８℃， ｔｈｅ ｉｎｄｏｏｒ ｆａｎ ｗｏｒｋｓ ｉｎ ａｃｃｏｒｄａｎｃｅ ｗｉｔｈ ｔｈｅ ｓｅｔｔｉｎｇ ｏｆ
ｔｈｅ ｒｅｍｏｔｅ ｃｏｎｔｒｏｌｌｅｒ．
T
setting
- T
indoor
Fan speed T
setting
- T
indoor
Fan speed
1℃
Low
1℃
Low
2℃
Mid
2℃
Low
3℃
Mid
3℃
Mid
4℃
Mid
4℃
Mid
5℃
High
5℃
Mid
Temperature
difference
≥6℃
High
Temperature
difference
≥6℃
High
６．２ Current protection
ＩＯ ｉｓ ｔｈｅ ｎｏｒｍａｌ ｗｏｒｋｉｎｇ ｃｕｒｒｅｎｔ ｖａｌｕｅ ｏｆ Ｅ２ＲＯＭ，Ｉ
ｍａｘ
ｉｓ ｔｈｅ ｃｅｉｌｉｎｇ ｃｕｒｒｅｎｔ ｖａｌｕｅ
ｏｆ Ｅ２ＲＯＭ．
Ｉ ＜ ＩＯ －１．５Ａ Ｗｉｔｈｏｕｔ ｌｉｍｉｔａｔｉｏｎ．
Ｉ＞Ｉ
Ｏ
＋１．５Ａ Ｆｒｅｑｕｅｎｃｙ ｄｒｏｐｓ．
Ｉ≥Ｉ
ｍａｘ
Ｏｐｅｒａｔｉｏｎ ｓｔｏｐｓ．
6.3 Defrosting
6.3.1 The defrosting is done through changing the flow direction of refrigerant inside of the
four-way valve.
6.3.2 Defrosting conditions:
Continuous heating run for more than 30min
During single machine operation, T
outdoor
– T
outdoor coil
≥ 12℃ and lasts 8minutes
6.3.3 Defrosting process:
Compressor and outdoor fan motor off → four-way valve off → compressor on →
defrosting conditions met → compressor off → four-way valve on → compressor on →
outdoor fan on → end
6.3.4 Overhot protection for the indoor heat exchanger
6.CONTROL MODE
When the temperature of the indoor coil≥78℃, the compressor will stop;
When the temperature≥63℃, the outdoor flow speed will turn to the low speed, and the
compressor runs at the descending frequency;
When the temperature＜58℃, the compressor will prohibit the frequency from rising.
7 . Air cleaning
The outdoor unit doesn’ t work in this mode, and the indoor fan runs in cooling mode.
8.Protection
8.1 Abnormal sensor: when the sensor is short circuited or cut off, the compressor will stop, and
the trouble code will be displayed.
8.2. IPM error
In the case of IPM abnormalities, e.g. overheat (100℃）， ｏｖｅｒｃｕｒｒｅｎｔ （１７Ａ）， ｏｒ ｌｏｗ ｄｒｉｖｉｎｇ
ｖｏｌｔａｇｅ （ｂｅｌｏｗ １２Ｖ）， ｂｏｔｈ ｔｈｅ ｃｏｍｐｒｅｓｓｏｒ ａｎｄ ｔｈｅ ｏｕｔｄｏｏｒ ｆａｎ ｓｔｏｐ ｒｕｎｎｉｎｇ， ａｎｄ ｔｈｅ
ｃｏｒｒｅｓｐｏｎｄｉｎｇ ｅｒｒｏｒ ｃｏｄｅ ｉｓ ｄｉｓｐｌａｙｅｄ．
8.3 Temperature protection for the compressor exhaust
When the compressor exhaust temperature ＜93℃, the compressor runs at the ascending
frequency;
When the temperature ≥93℃, and ＜115 ℃the compressor runs at the limit to the frequency
ascending;
When the temperature ＞115 ℃, the compressor stops.
8.4 Abnormal power supply voltage protection
When the supply voltage is above 260V or below 150V, the compressor stops, and the trouble
code is displayed.
8.5 No load protection
Measure the total current. When the current in the outdoor unit is lower than 0.15A, the
compressor will stop operation and no load protection error is displayed.
8.6 . Economical running
During economical run (this function is set on the remote controller), the working current will be
limited (to 60% of the max working current).
9 Automatic control of the electronic expansion valve
9.1 Power-on reset
Upon power-on reset, the expansion valve shuts off for 600 seconds first, and then opens to
a degree fit for the frequency.
9.2 The expansion valve regulates according to the outlet air temperature of the compressor.
Compressor rotor position signal not available
There is an LED indicator on the IPM board of the outdoor unit. During operation of the
compressor, the LED blinks to indicate frequency restriction conditions of the compressor.
6.CONTROL MODE
Content of trouble Indoor display code
Indoor sensor trouble
１
Evaporator sensor trouble
２
Evaporator freezing
３
Over hot of indoor heat exchanger
４
Communication trouble
５
Over current of compressor 7
Fan motor trouble
８
Indoor EEPROM 13
Outdoor sensor trouble 21
OUTDOOR
Outdoor sensor trouble 1
Outdoor coil sensor trouble 2
Discharge sensor 3
Compressor position 4
Communication trouble 5
Over current of whole system 6
No load 7
Abnormal power voltage 8
Compressor start-up failure 9
Higher outdoor exchange tempreture 10
Defrosting 11
IPM trouble 12
Data failure of outdoor E2PROM 13
Outdoor Fan 15
1. Normal operation, no frequency restriction.
2. Power voltage restriction.
3. Condenser temperature restriction.
4. Total current restriction.
5. Outlet air temperature restriction.
6. Indoor heat exchange temperature restriction for cooling operation.
7. Indoor fan speed restriction.
8 AD interface frequency conversion restriction.
Ｓｗｉｔｃｈ ｏｎ ｔｈｅ ｐｏｗｅｒ
ｓｕｐｐｌｙ
Ｙｅｓ
Ｃｈｅｃｋ ｔｈｅ
ｒｅｓｕｌｔ
Ｄｉｓｐｌａｙ ｂｏａｒｄ
ｐｒｏｌｅｍ
Ｙｅｓ
Ｎｏ
Ｉｎｄｏｏｒ ｃｏｎｔｒｏｌ
ｂｏａｒｄ Ｉｓ ｆａｕｌｔｙ
ｒｅｐｌａｃｅ ｉｔ
Ｃｈｅｃｋ ａｌｌ ｗｉｒｅｓ
ａｒｅ ｃｏｎｎｅｃｔｅｄ
ｃｏｒｒｅｃｔｌｙ
Ｓｔａｒｔ ｕｐ ｓｅｌｆ－ｔｅｓｔ
ｆｕｎｃｔｉｏｎ
Ｒｅｐｌａｃｅ ｔｈｅ ｂａｔｔｅｒｙ
ｐｒｅｓｓ ＲＥＳＥＴ
ｂｏｔｔｏｎ ，ｒｅｔｒｙ ｒｅｍｏｔｅ
ｏｐｅｒａｔｉｏｎ ａｎｄ
ｒｅｐｌａｃｅ ｒｅｍｏｔｅ
Ｙｅｓ
Ｄｉｓｐｌａｙ ｂｏａｒｄ
ｐｒｏｂｌｅｍ
Ｎｏ
Ｙｅｓ
Ｃｈｅｃｋ ｏｐｅｒａｔｉｏｎ
Ｉｓ ｔｈｅ ｆｕｓｅ
ｂｌｏｗｎ？
Ｙｅｓ
Ｃｈｅｃｋ ａｎｄ ｆｉｎｄ ｓｈｏｒｔ
ｃｉｒｃｕｉｔ ｏｒ ｏｐｅｎ ｃｉｒｃｕｉｔ
ａｍｏｎｇ ｏｔｈｅｒ ｃｏｍｐｏｎｅｎｔｓ ｓｕｃｈ
ａｓ ｆａｎ ｍｏｔｏｒ？
Ｉｎｄｏｏｒ ｃｏｎｔｒｏｌ ｂｏａｒｄ
ｆａｕｌｔｙ
Ｅｒｒｏｒ ｃｏｄｅ １
Ｉｎｄｏｏｒ ｔｅｍｐｅｒａｔｕｒｅ
ｓｅｎｓｏｒ ｔｒｏｕｂｌｅ
Ｅｒｒｏｒ ｃｏｄｅ ２
Ｉｎｄｏｏｒ ｃｏｉｌ
ｓｅｎｓｏｒ ｔｒｏｕｂｌｅ
Ｄｏｅｓ ＬＣＤ ｓｃｒｅｅｎ
ｄｉｓｐｌａｙ Ｎｏｒｍａｌｌｙ？
Ａｒｅ ｔｈｅ
ｗｉｒｅｓ
ｐｏｏｒｌｙ
ｃｏｎｎｅｃｔｅｄ？
Ｄｏｅｓ ｉｔ ｒｅｃｅｉｖｅ
ｔｈｅ ｒｅｍｏｔｅ
ｃｏｎｔｒｏｌ ｓｉｇｎａｌ？
Ｉｓ ｔｈｅ ｒｅｍｏｔｅ
ｃｏｎｔｒｏｌｌｅｒ ｉｎ
ｇｏｏｄ ｃｏｎｄｉｔｉｏｎ ？
Ａｆｔｅｒ ｒｅｐｌａｃｉｎｇ
ｔｈｅ ｄｉｓｐｌａｙ
ｂｏａｒｄ，Ｉｓ ｔｈｅｒｅ
ｓｔｉｌｌ ｔｒｏｕｂｌｅ？
Ｒｅｐｌａｃｅ ｔｈｅ
ｉｎｄｏｏｒ ｂｏａｒｄ，Ｉｓ
ｔｈｅｒｅ ｓｔｉｌｌ
ｔｒｏｕｂｌｅ？
Ｉｓ ｉｎｄｏｏｒ
ｃｏｎｔｒｏｌ ｂｏａｒｄ
ｓｈｏｒｔ
ｃｉｒｃｕｉｔ？
Ａｆｔｅｒ ｒｅｐｌａｃｉｎｇ
ｔｈｅ ｄｉｓｐｌａｙ
ｂｏａｒｄ，Ｉｓ ｔｈｅｒｅ
ｓｔｉｌｌ ｔｒｏｕｂｌｅ？
Ｎｏ
Ｙｅｓ
Ｙｅｓ
Ｙｅｓ
Ｙｅｓ
Ｎｏ
Ｎｏ
Ｎｏ
Ｍｅａｓｕｒｅ
ｒｅｓｉｓｔａｎｃｅ
ｂｅｔｗｅｅｎ
ＣＮ６０７ ①
ａｎｄ②
Ｍｅａｓｕｒｅ
ｒｅｓｉｓｔａｎｃｅ
ｂｅｔｗｅｅｎ
ＣＮ６０８ ①
ａｎｄ②
Ｄｏｅｓ ｔｈｅ
ｒｅｓｉｓｔａｎｃｅｓ ｏｆ
ｔｈｅｒｍｉｓｔｏｒ ｈａｖｅ
ｔｈｅ
ｃｈａｒａｃｔｅｒｉｓｔｉｃｓ ｏｎ
ｐａｇｅ ３１
Ｒｅｐｌａｃｅ ｔｈｅ
ｔｈｅｒｍｉｓｔｏｒ
Ｃｏｎｎｅｃｔ ＣＮ６０７ ａｎｄ
ＣＮ６０８、ＣＮ６０９．
Ｔｕｒｎ ＯＮ ｔｈｅ ｐｏｗｅｒ
ｓｕｐｐｌｙ ａｎｄ ｐｒｅｓｓ
ｔｈｅ ＥＭＥＲＧＥＮＣＹ
ＯＰＥＲＡＴＩＯＮ ＳＷＩＴＣＨ
Ｒｅｐｌａｃｅ ｔｈｅ
ｉｎｄｏｏｒ ｂｏａｒｄ
Ｏｋ ＊１
Ｄｏｅｓ ｔｈｅ
ｕｎｉｔ
ｏｐｅｒａｔｅ １０
ｍｉｎｕｔｅｓ ｏｒ
ｍｏｒｅ？
＊１ Ｄｅｆｅｃｔｉｖｅ ｃｏｎｔａｃｔ ｏｆ ｔｈｅ ｃｏｎｎｅｃｔｏｒ ｉｓ ｃｏｎｓｉｄｅｒｅｄ
Ｙｅｓ
Ｙｅｓ
Ｎｏ
Ｎｏ
Ｎｏ
Ｎｏ
Ｎｏ
7.SERVICE FLOW CHART
Ｅｒｒｏｒ ｃｏｄｅ ７
Ｉｎｄｏｏｒ ａｉｒ ｏｕｔｌｅｔ
ｓｅｎｓｏｒ ｔｒｏｕｂｌｅ
Ｍｅａｓｕｒｅ
ｒｅｓｉｓｔａｎｃｅ
ｂｅｔｗｅｅｎ
ＣＮ６０９ ①
ａｎｄ②
Ｏｃｃｕｒ ｂｙ ｃｈａｎｃｅ
Ｅｒｒｏｒ ｃｏｄｅ ３
Ｉｎｄｏｏｒ ｈｅａｔ ｅｘｃｈａｎｇｅｒ
ｉｓ ｉｃｅｄ ｕｐ
Ｎｏ
Ｉｎｄｏｏｒ ｃｏｉｌ ｓｅｎｓｏｒ
ｆａｕｌｔｙ，ｒｅｐｌａｃｅ ａｎｄ
ｃｈｅｃｋ ｏｐｅｒａｔｉｏｎ
Ｙｅｓ
Ｓｗｉｔｃｈ ｔｏ ｈｅａｔ ｏｐｅｒａｔｉｏｎ ｔｏ ｄｅｆｒｏｓｔ ｔｈｅ ｈｅａｔ
ｅｘｃｈａｎｇｅ ｃｏｉｌ，ｃｈａｎｇｅ ｂａｃｋ ｔｏ ｃｏｏｌｉｎｇ ａｎｄ
ｃｈｅｃｋ ｏｐｅｒａｔｉｏｎ
Ｃｈｅｃｋ ｏｐｅｒａｔｉｏｎ
Ｉｎｄｏｏｒ ｃｏｎｔｒｏｌ
ｂｏａｒｄ ｆａｕｌｔｙ ，
ｒｅｐｌａｃｅ ｉｔ
Ｎｏｒｍａｌ
ｐｒｏｔｅｃｔｉｏｎ
Ｎｏ
Ｙｅｓ
Ｏｃｃｕｒ ｂｙ ｃｈａｎｃｅＹｅｓ
Ｅｒｒｏｒ ｃｏｄｅ ４
ｉｎｄｏｏｒ ｈｅａｔ ｅｘｃｈａｎｇｅｒ
ｉｓ ｏｖｅｒ ｌｏａｄｅｄ
Ｉｎｄｏｏｒ ｃｏｉｌ ｓｅｎｓｏｒ
ｆａｕｌｔｙ，ｒｅｐｌａｃｅ ａｎｄ
ｃｈｅｃｋ ｏｐｅｒａｔｉｏｎ
Ｙｅｓ
Ｓｗｉｔｃｈ ｏｆｆ ｔｈｅ ｐｏｗｅｒ，ｓｔａｒｔ ｕｐ ｔｈｅ
ａｉｒ ｃｏｎｄｉｔｏｎｅｒ ｉｎ １０ ｍｉｎｕｔｅｓ
Ｏｕｔｄｏｏｒ ｃｏｎｔｒｏｌ
ｂｏａｒｄ
ｆａｕｌｔｙ，ｒｅｐｌａｃｅ ｉｔ
Ｙｅｓ
Ｎｏ
Ｉｎｄｏｏｒ ｃｏｎｔｒｏｌ
ｂｏａｒｄ ｆａｕｌｔｙ
ｒｅｐｌａｃｅ ｉｔ
Ｎｏ
Ｎｏｒｍａｌ
ｐｒｏｔｅｃｔｉｏｎ
Ｎｏ
Ｙｅｓ
Ｓｗｉｔｃｈ ｏｆｆ ｔｈｅ ｐｏｗｅｒ，ｒｅｐｌａｃｅ ｔｈｅ
ｏｕｔｄｏｏｒ ｃｏｎｔｒｏｌ ｂｏａｒｄ ａｎｄ ｔｈｅｎ
ｓｔａｒｔ ｕｐ ｔｈｅ ａｉｒ ｃｏｎｄｉｔｏｎｅｒ．
Ｓｗｉｃｈ ｏｆｆ ｔｈｅ ｐｏｗｅｒ，ｒｅｐｌａｃｅ ｔｈｅ
ｏｕｔｄｏｏｒ ｃｏｎｔｒｏｌ ｂｏａｒｄ ａｎｄ ｔｈｅｎ
ｓｔａｒｔ ｕｐ ｔｈｅ ａｉｒ ｃｏｎｄｉｔｏｎｅｒ．
Ｉｓ ｉｎｄｏｏｒ ｈｅａｔ
ｅｘｃｈａｎｇｅｒ ｉｃｅｄ ｕｐ？
Ｉｓ ｃｏｍｐｒｅｓｓｏｒ
ｓｔｉｌｌ ｒｕｎｎｉｎｇ？
Ｉｓ ｉｎｄｏｏｒ ｈｅａｔ
ｅｘｃｈａｎｇｅｒ
ｆｒｅｅｚｉｎｇ ｕｐ ａｇａｉｎ？
Ｉｓ ｔｈｅ ｓｙｓｔｅｍ
ｉｎ ｇｏｏｄ
ｃｏｎｄｉｔｉｏｎ？
Ｉｓ ｃｏｍｐｒｅｓｓｏｒ
ｓｔｉｌｌ
ｒｕｎｎｉｎｇ？
Ｉｓ ｉｎｄｏｏｒ ｈｅａｔ
ｅｘｃｈａｎｇｅｒ ｖｅｒｙ
ｈｏｔ？
Ｉｓ ｔｈｅ ｓｙｓｔｅｍ
ｉｎ ｇｏｏｄ
ｃｏｎｄｉｔｉｏｎ？
Ｉｓ ｔｈｅ ｓｙｓｔｅｍ
ｉｎ ｇｏｏｄ
ｃｏｎｄｉｔｉｏｎ？
Ｅｒｒｏｒ ｃｏｄｅ ８
ｉｎｄｏｏｒ ｆａｎ ｍｏｔｏｒ ｔｒｏｕｂｌｅ
Ｎｏ
Ｙｅｓ
Ｉｎｄｏｏｒ ｃｏｎｔｒｏｌ ｂｏａｒｄ
ｆａｕｌｔｙ ａｎｄ ｒｅｐｌａｃｅ ｉｔ
Ｓｅｔ ｔｈｅ ａｉｒ ｃｏｎｄｉｔｉｏｎｅｒ
ｏｐｅｒａｔｅ ｉｎ ｆａｎ ｍｏｄｅ
Ｙｅｓ
Ｎｏ
Ｎｏ
Ｏｃｃｏｒ ｂｙ ｃｈａｎｃｅＹｅｓ
Ｒｅｐａｉｒ ｔｈｅ ｉｎｄｏｏｒ
ｆａｎ ｍｏｔｏｒ
Ｄｏｅｓ ｖｏｌｔａｇｅ ｒｅｐｅａｔ ０Ｖ ＤＣ
ａｎｄ １５Ｖ ＤＣ？
Ｉｓ ｉｎｄｏｏｒ ｆａｎ
ｍｏｔｏｒ
ｒｕｎｎｉｎｇ？
Ｉｎｓｅｒｔ ｓｃｒｅｗｄｒｉｖｅｒ ｉｎｔｏ ｔｏ
ｒｏｔａｔｅ ｉｎｄｏｏｒ ｆａｎ ｍｏｔｏｒ
ｓｌｏｗｌｙ ｆｏｒ １ ｒｅｖｏｌｕｔｉｏｎ ｏｒ
ｏｖｅｒ，ａｎｄ ｍｅａｓｕｒｅ ｖｏｌｔａｇｅ
ＮＯ．６（＋） ａｎｄ ＮＯ．３（－） ｏｎ ＣＮ７０１．
Ｄｏｅｓ ｆａｎ ｍｏｔｏｒ
ｓｔｏｐ ｗｉｔｈ ｔｈｅ
ｒｅｍｏｔｅ
ｃｏｎｔｒｏｌｌｅｒ
Ｄｏｅｓ ｔｈｅ ｓｏｃｋｅｔ ＣＮ７０１ ｏｆ
ｉｎｄｏｏｒ ｃｏｎｔｒｏｌ ｂｏａｒｄ ｈａｖｅ
ｐｏｗｅｒ ｉｎｐｕｔ（ＤＣ ３１０Ｖ ＡＮＤ ＤＣ
１５Ｖ）
Ｃｈｅｃｋ ｉｆ ｆｉｌｔｅｒｓ
ａｒｅ ｃｌｅａｎ？
Ｃｋｅｃｋ ｉｆ ｌｉｑｕｉｄ
ｌｉｎｅ ｓｔｒａｉｎｅｒ ｉｓ
ｂｌｏｃｋｅｄ？
Ｉｆ ｄｉｒｄｙ，ｗａｓｈ
ｆｉｌｔｅｒｓ
Ｎｏ
Ｙｅｓ
Ｙｅｓ
Ｉｆ ｂｌｏｃｋｅｄ，ｒｅｐｌａｃｅ
ｔｈｅ ｓｔｒａｉｎｅｒ
Ｎｏ
Ｃｈｅｃｋ ｏｐｅｒａｔｉｏｎ
7.SERVICE FLOW CHART
Ｎｏ
Ｙｅｓ
Ｎｏ
Ｅｒｒｏｒ ｃｏｄｅ ５
ｃｏｍｍｕｎｉｃａｔｉｏｎ
ｐｒｏｂｌｅｍ
Ｃｏｎｎｅｃｔ ｔｈｅ ｉｎｄｏｏｒ
ａｎｄ ｏｕｔｄｏｏｒ ｕｎｉｔ
ａｇａｉｎ ａｃｃｏｒｄｉｎｇ ｔｏ
ｔｈｅ ｗｉｒｉｎｇ ｄｉａｇｒａｍ
Ｙｅｓ
Ｙｅｓ
Ｒｅｐｌａｃｅ ｔｈｅ ｏｕｔｄｏｏｒ
ｃｏｎｔｒｏｌ ｂｏａｒｄ ａｎｄ
ｓｔａｒｔ ｕｐ ａｇａｉｎ
Ｏｕｒｄｏｏｒ ｃｏｎｔｒｏｌ
ｂｏａｒｄ ｔｒｏｕｂｌｅ
Ｙｅｓ
Ｎｏ
Ｉｎｄｏｏｒ ｃｏｎｔｒｏｌ
ｂｏａｒｄ ｆａｕｌｔ，
ｒｅｐｌａｃｅ ｉｔ
Ｎｏ
Ｎｏ
Ｔｈｅｒｅ ｉｓ ａ ｓｈｏｒｔ ｃｉｒｃｕｉｔ
ｂｅｈｉｎｄ ｔｈｅ ｓｔａｒｔｕｐ
ｒｅｓｉｓｔｏｒ
Ｔｈｅ ＩＰＭ．ｃｏｎｔｒｏｌ
ａｎｄ ｗａｖｅ ｆｉｌｔｅｒ
ｂｏａｒｄ Ｉｓ ｆａｕｌｔｙ
ｏｒ ｓｈｏｒｔ
ｃｉｒｃｕｉｔｅｄ
Ｎｏ
Ｎｏ
Ｙｅｓ Ｙｅｓ Ｒｅｐｌａｃｅ ｉｔ
Ｎｏ
Ｎｏ
Ｎｏ
Ｉｎｄｏｏｒ ＦＩＬＴＥＲ ｂｏａｒｄ
ｆａｕｌｔｙ ｒｅｐｌａｃｅ ｉｔ
Ｙｅｓ
Ｃｏｎｎｅｃｔｉｏｎ ｗｉｒｅ
ｆａｕｌｔ，ｔｉｇｈｔｅｎ ａｎｄ
ｃｈｅｃｋ
Ｙｅｓ
Ｃｏｎｎｅｃｔｉｏｎ ｗｉｒｅ
ｆａｕｌｔ，ｔｉｇｈｔｅｎ ａｎｄ
ｃｈｅｃｋ
Ｃｏｎｎｅｃｔｉｏｎ ｗｉｒｅ
ｆａｕｌｔ，ｔｉｇｈｔｅｎ ａｎｄ
ｃｈｅｃｋ
Ｙｅｓ
Ｃｏｎｎｅｃｔｉｏｎ ｗｉｒｅ
ｐｒｏｂｌｅｍ
Ｒｅｐａｉｒ ｗｉｒｉｎｇ ａｓ
ｒｅｑｕｉｒｅｄ
Ｒｅｐｌａｃｅ ｔｈｅ
ｆａｕｌｔｙ ｕｎｉｔ
Ｙｅｓ
ｆａｕｌｔｙ ｅｌｅｃｔｒｉｃａｌ
ｃｏｎｎｅｃｔｉｏｎ
ｒｅｐｌａｃｅ ｔｈｅ
ｆａｕｌｔｙ
ｃｏｍｐｏｎｅｎｔｓ
Ｙｅｓ
Ｏｕｔｄｏｏｒ ｃｏｎｔｒｏｌ ｂｏａｒｄ
ｆａｕｌｔｙ ｒｅｐｌａｃｅ ｉｔ
Ｙｅｓ
Ｒｅｐｌａｃｅ ＩＰＭ ｂｏａｒｄ
ａｎｄ ｆｕｓｅ
Ｎｏ
Ｃｈｅｃｋ ｏｐｅｒａｔｉｏｎ
Ｙｅｓ
Ｎｏ
Ｄｉｓｐｌａｙ ｂｏａｒｄ ｆａｕｌｔ，
ｒｅｐｌａｃｅ ｉｔ
Ｙｅｓ
Ｎｏｒｍａｌ ｐｒｏｔｅｃｔｉｏｎ ａｎｄ
ｒｅｐｌａｃｅ ｆｕｓｅ
Ｎｏ
Ｉｓ ｔｈｅ ｖｏｌｔａｇｅ
ｉｎｐｕｔ ｏｆ ｓｔａｒｔｕｐ
ｒｅｓｉｓｔｏｒ ｃｏｒｒｅｃｔ？
Ｉｓ ｔｈｅｒｅ ｐｏｗｅｒ
ｏｕｔｐｕｔ ｏｆ ｉｎｄｏｏｒ
ｕｎｉｔ ｍａｉｎ
ｒｅｌａｙ（ＲＬ１０１）？
Ｉｓ ｔｈｅｒｅ ２４０Ｖ ＡＣ
ｂｅｔｗｅｅｎ １ ａｎｄ ２ ｏｎ ｔｈｅ
ｉｎｄｏｏｒ ｔｅｒｍｉｎａｌ
ｂｌｏｃｋ
Ｉｓ ｔｈｅｒｅ ２４０Ｖ ＡＣ
ｂｅｔｗｅｅｎ １ ａｎｄ ２ ｏｎ
ｔｈｅ ｏｕｔｄｏｏｒ ｔｅｒｍｉｎａｌ
ｂｌｏｃｋ
Ｉｓ ｔｈｅ ｆｕｓｅ ｉｎ
ｃｏｎｔｒｏｌ ｂｏｘ
（２０Ａ） ｂｌｏｗｎ？
Ｔｈｅ ｓｔａｒｔｕｐ
ｒｅｓｉｓｔｏｒ Ｉｓ
ｏｖｅｒｈｏｔ？
Ｄｏｅｓ ｔｈｅ ｐｏｗｅｒ
ｉｎｄｉｃａｔｏｒ （ＬＥＤ）ｏｆ
ｏｕｔｄｏｏｒ ｃｏｎｔｒｏｌ
ｂｏａｒｄ ｌｉｇｈｔ ｕｐ？
Ａｒｅ ａｌｌ ｔｈｅ ｌｅａｄ
ｗｉｒｅｓ ｃｏｎｎｅｃｔｅｄ
ｂｅｔｗｅｅｎ ｉｎｄｏｏｒ ａｎｄ
ｏｕｔｄｏｏｒ ｕｎｉｔ？
Ｉｓ ｔｈｅ ｓｙｓｔｅｍ
ｉｎ ｇｏｏｄ
ｃｏｎｄｉｔｉｏｎ？
Ｔｈｅ ｃｏｎｔｒｏｌ ｓｙｓｔｅｍ ｏｆ ｏｕｔｄｏｏｒ
ｕｎｉｔ ｈａｓ ｓｈｏｒｔ ｃｉｒｃｕｉｔ
ｔｒｏｕｂｌｅ，ｃｈｅｃｋ ｔｈｅ ｃｏｎｎｅｃｔｉｏｎ
ｗｉｒｅ，ｗａｖｅ ｆｉｌｔｅｒ ｂｏａｒｄ，ｏｕｔｄｏｏｒ
ｃｏｎｔｒｏｌ ｂｏａｒｄ，ＩＰＭ，ｒｅｃｔｉｆｉｅｒ ａｎｄ
ｅｌｅｃｔｒｏｌｙｔｉｃ ｃａｐａｃｉｔｏｒ
Ｉｓ ｏｕｔｄｏｏｒ
ｃｏｎｔｒｏｌ ｂｏａｒｄ
ｓｈｏｒｔ ｃｉｒｃｕｉｔｅｄ？
Ｉｓ ＩＰＭ ｂｏａｒｄ ｓｈｏｒｔ
ｃｉｒｃｕｉｔｅｄ？
Ｃｈｅｃｋ ｉｎｄｏｏｒ ａｎｄ ｏｕｔｄｏｏｒ
ｉｎｔｅｒｃｏｎｎｅｃｔｉｎｇ ｗｉｒｉｎｇ ｆｏｒ
ｓｈｏｒｔ ｃｉｒｃｕｉｔ
Ｉｓ ｔｈｅ ｓｙｓｔｅｍ
ｉｎ ｇｏｏｄ
ｃｏｎｄｉｔｉｏｎ？
Ｉｓ ｔｈｅ
Ｆｕｓｅ３（３．１５Ａ）
ｆｕｓｅ ｏｆ ｂｌｏｗｎ？
Ｉｓ ｔｈｅ
Ｆｕｓｅ１（２０Ａ） ｆｕｓｅ
ｏｆ ｂｌｏｗｎ？
Ｎｏ
Ｎｏ
Ｙｅｓ
Ｎｏ
7.SERVICE FLOW CHART
Ｙｅｓ
Ｒｅｃｔｉｆｉｅｒ ｆａｕｌｔｙ
ｒｅｐｌａｃｅ ｉｔ
Ｙｅｓ
Ｒｅｐｌａｃｅ ｔｈｅ
ｆａｕｌｔｙ ｂｏａｒｄ
Ｄｏｅｓ ｔｈｅ
ｒｅｃｔｉｆｉｅｒ ｈａｖｅ
ａｌｔｅｒｎａｔｉｎｇ
ｃｕｒｒｅｎｔ ｉｎｐｕｔ？
Ｉｓ ｔｈｅ ｒｅａｃｔｏｒ
ａｎｄ ｗａｖｅ ｆｉｌｔｅｒ
ｂｏａｒｄ ｏｐｅｎ
ｃｉｒｃｕｉｔ？
Ｎｏ
Ｉｓ ｔｈｅ
ｒｅｓｉｓｔｏｒ
ＴＨ１０１
ｃｏｒｒｅｃｔ？
Ｒｅｐｌａｃｅ ｔｈｅ
ｒｅｓｉｓｔｏｒ
ＮＯ
ＮＯ
Ｅｒｒｏｒ ｃｏｄｅ ｏｕｔｄｏｏｒ ３
ｃｏｍｐｒｅｓｓｏｒ ｏｖｅｒ ｈｅａｔ
ｐｒｏｔｅｃｔｉｏｎ
Ｎｏ
Ｏｕｔｄｏｏｒ ｃｏｎｔｒｏｌ ｂｏａｒｄ
ｆａｕｌｔｙ ， ｒｅｐｌａｃｅ ｉｔ
Ｒｅｐｌａｃｅ ｉｔ
Ｎｏ
Ｙｅｓ
Ｎｏｒｍａｌ
ｐｒｏｔｅｃｔｉｏｎ
Ｙｅｓ
Ｙｅｓ
Ｒｅｐｌａｃｅ
ｄｉｓｃｈａｒｇｅ
ｓｅｎｓｏｒ
Ｎｏ
Ｅｒｒｏｒ ｃｏｄｅ ｏｕｔｄｏｏｒ ６
ｏｖｅｒ ｃｕｒｒｅｎｔ ｐｒｏｔｅｃｔｉｏｎ
Ｎｏ
Ｏｕｔｄｏｏｒ
ｃｏｎｔｒｏｌ ｂｏａｒｄ
ｆａｕｌｔ
Ｙｅｓ
Ｎｏｒｍａｌ
ｐｒｏｔｅｃｔｉｏｎ
Ｙｅｓ Ｙｅｓ
Ｎｏ
Ｙｅｓ
Ｏｃｃｕｒ ｂｙ ｃｈａｎｃｅ
Ｅｒｒｏｒ ｃｏｄｅ ２７
ｎｏｎｅ ｌｏａｄ ｐｒｏｔｅｃｔｉｏｎ
Ｎｏ
ｒｅｐｌａｃｅ ｏｕｔｄｏｏｒ
ｃｏｎｔｒｏｌ ｂｏａｒｄ
ＩＰＭ ｆａｕｌｔ，
ｒｅｐｌａｃｅ ｉｔ
Ｎｏ
Ｙｅｓ
Ｙｅｓ
Ｎｏ
Ｙｅｓ
Ｃｏｍｐｒｅｓｓｏｒ
ｆａｕｌｔｙ
Ｏｕｔｄｏｏｒ ｗａｖｅ ｆｉｌｔｅｒ ｂｏａｒｄ
ｔｒｏｕｂｌｅ ａｎｄ ｒｅｐｌａｃｅ ｉｔ
Ｃｈｅｃｋ ｏｐｅｒａｔｉｏｎ
Ｎｏ
Ｙｅｓ
Ｅｒｒｏｒ ｃｏｄｅ ｏｕｔｄｏｏｒ ８
ｖｏｌｔａｇｅ ｏｆ ｐｏｗｅｒ
ｓｕｐｐｌｙ Ｉｓ ａｂｎｏｒｍａｌ
Ｏｕｔｄｏｏｒ ｃｏｎｔｒｏｌ
ｂｏａｒｄ ｆａｕｌｔ，
ｒｅｐｌａｃｅ ｉｔ
Ｎｏ
Ｎｏｒｍａｌ ｐｒｏｔｅｃｔｉｏｎ
Ｅｒｒｏｒ ｃｏｄｅ ｏｕｔｄｏｏｒ
１５
ｆａｎ ｍｏｔｏｒ ｅｒｒｏｒ
Ｓｗｉｔｃｈ ｏｆｆ ｔｈｅ ｐｏｗｅｒ
ｓｕｐｐｌｙ ａｎｄ ｓｔａｒｔ ｕｐ ｉｎ
３ ｍｉｎｕｔｅｓ
Ｉｓ ｔｈｅ ｏｖｅｒ ｈｏｔ
ｓｗｉｔｃｈ ｏｆ
ｃｏｍｐｒｅｓｓｏｒ ｏｐｅｎ
ｃｉｒｃｕｉｔ？
Ｉ
ｓ ｔｈｅ ｒｅｓｉｓｔａｎｃｅ
ｏｆ ｃｏｍｐｒｅｓｓｏｒ
ｄｉｓｃｈａｒｇｅ ｓｅｎｓｏｒ
ｃｏｒｒｅｃｔ？
Ｓｗｉｃｈ ｏｆｆ ａｎｄ
ｓｔａｒｔ ｕｐ
ａｇａｉｎ，Ｉｓ ｉｔ ｏｋ？
Ｉｓ ｔｈｅ
ｏｐｅｒａｔｉｎｇ
ｃｕｒｒｅｎｔ ｂｅｙｏｎｄ
Ｎｏｒｍａｌ ｒａｎｇｅ？
Ｉｓ ｔｈｅ ｓｕｒｆａｃｅ
ｏｆ ｃｏｍｐｒｅｓｓｏｒ
ｖｅｒｙ ｈｏｔ？
Ｓｗｉｔｃｈ ｏｆｆ ａｎｄ
ｓｔａｒｔ ｕｐ
ａｇａｉｎ，Ｉｓ ｉｔ
ｏｋ？
Ｒｅｐｌａｃｅ ｔｈｅ
ｏｕｔｄｏｏｒ ＩＰＭ
ｃｏｎｔｒｏｌ ｂｏａｒｄ，Ｉｓ
ｉｔ ｏｋ？
Ｒｅｐｌａｃｅ ｔｈｅ
ｏｕｔｄｏｏｒ ｃｏｎｔｒｏｌ
ｂｏａｒｄ，Ｉｓ ｉｔ ｏｋ？
Ｉｓ ｔｈｅ ｖｏｌｔａｇｅ ｏｆ ｐｏｗｅｒ
ｓｕｐｐｌｙ Ｎｏｒｍａｌ ｏｆ ＡＣ
１７６－２６４Ｖ？
Ｉｓ ｔｈｅｒｅ ＤＣ ３１０
ｖｏｌｔａｇｅ ｉｎｐｕｔ
ｂｅｔｗｅｅｎ Ｐ－Ｎ ｏｎ
ＩＰＭ ｂｏａｒｄ
Ｉｓ ｔｈｅｒｅ ｖｏｌｔａｇｅ
ｏｕｔｐｕｔ ｂｅｔｗｅｅｎ ＩＰＭ
ｂｏａｒｄ ａｎｄ Ｕ－Ｖ－Ｗ？
Ｉｓ ｔｈｅ ｃｏｍｐｒｅｓｓｏｒ
ｒｕｎｎｉｎｇ？
Ｒｅｐｌａｃｅ ｃｏｍｐｒｅｓｓｏｒ
Ｃｈｅｃｋ ｏｐｅｒａｔｉｏｎ
Ｙｅｓ
7.SERVICE FLOW CHART
Ｎｏ
Ｏｃｃｏｒ ｂｙ ｃｈａｎｃｅＹｅｓ
Ｄｏｅｓ ｆａｎ
ｍｏｔｏｒ
ｒｕｎ ｎｏｒｍａｌ？
ｏｕｔｄｏｏｒ ｃｏｎｔｒｏｌ ｂｏａｒｄ
ｆａｕｌｔｙ ａｎｄ ｒｅｐｌａｃｅ ｉｔ
Ｙｅｓ
Ｎｏ
Ｒｅｐａｉｒ ｔｈｅ ｏｕｔｄｏｏｒ
ｆａｎ ｍｏｔｏｒ
Ｄｏｅｓ ｖｏｌｔａｇｅ ｒｅｐｅａｔ
０Ｖ ＤＣ ａｎｄ １５Ｖ ＤＣ？
Ｉｎｓｅｒｔ ｓｃｒｅｗｄｒｉｖｅｒ ｉｎｔｏ ｔｏ
ｒｏｔａｔｅ ｉｎｄｏｏｒ ｆａｎ ｍｏｔｏｒ
ｓｌｏｗｌｙ ｆｏｒ １ ｒｅｖｏｌｕｔｉｏｎ ｏｒ
ｏｖｅｒ，ａｎｄ ｍｅａｓｕｒｅ ｖｏｌｔａｇｅ
ＮＯ．６（＋） ａｎｄ ＮＯ．３（－） ｏｎ ＣＮ９．
Ｄｏｅｓ ｔｈｅ ｓｏｃｋｅｔ ＣＮ９ ｏｆ
ｏｕｔｄｏｏｒ ｃｏｎｔｒｏｌ ｂｏａｒｄ ｈａｖｅ
ｐｏｗｅｒ ｉｎｐｕｔ（ＤＣ ３１０Ｖ ＡＮＤ ＤＣ
１５Ｖ）
Ｙｅｓ
Ｎｏ
Ｒｅｐｌａｃｅ
ｏｕｔｄｏｏｒ
ＥＥＰＲＯＭ
ＥＥＰＲＯＭ ｅｒｒｏｒ
ＹＥＳ
ＮＯ
Ｅｒｒｏｒ ｃｏｄｅ ｏｕｔｄｏｏｒ１０
ｃｏｎｄｅｎｓｅｒ ｏｖｅｒ ｌｏａｄ
Ｎｏ
Ｙｅｓ
Ｏｕｔｄｏｏｒ ｃｏｎｔｒｏｌ ｂｏａｒｄ
ｆａｕｌｔｙ ｒｅｐｌａｃｅ ｉｔ
Ｙｅｓ
Ｎｏ
Ｎｏｒｍａｌ
ｐｒｏｔｅｃｔｉｏｎ
Ｏｕｔｄｏｏｒ ｃｏｉｌ
ｓｅｎｓｏｒ ｆａｕｌｔ
Ｔｒｏｕｂｌｅ ｃｏｄｅ
ｏｕｔｄｏｏｒ３
ＥＥＰＲＯＭ ｔｒｏｕｂｌｅ
Ｏｕｔｄｏｏｒ ｃｏｎｔｒｏｌ
ｆａｕｌｔ， ｒｅｐｌａｃｅ ｉｔ
Ｅｒｒｏｒ ｃｏｄｅ ｏｕｔｄｏｏｒ１２
ＩＰＭ ｔｒｏｕｂｌｅ
Ｎｏ
Ｙｅｓ
ＩＰＭ ｆａｕｌｔ ａｎｄ
ｒｅｐｌａｃｅ ｉｔ
Ｉｓ ｔｈｅ
ＩＰＭ ｈｅａｔ ｓｉｎｋ ｖｅｒｙ
ｈｏｔ？
Ｎｏ
Ｙｅｓ
Ｎｏｒｍａｌ ｐｒｏｔｅｃｔｉｏｎ
Ａｓｓｕｒｅ ｇｏｏｄ
ｖｅｎｔｉｌａｔｉｏｎ
ｏｆ ｏｕｔｄｏｏｒ
ｕｎｉｔ ａｎｄ ｇｏｏｄ
ｃｏｎｔａｃｔ
ｂｅｔｗｅｅｎ ＩＰＭ
ａｎｄ ｈｅａｔ ｓｉｎｋ
Ｙｅｓ
Ｎｏ
Ｙｅｓ
Ｎｏｒｍａｌ ｐｒｏｔｅｃｔｉｏｎ
Ｎｏ
Ｙｅｓ
Ｎｏ
Ｉｓ ｔｈｅ
ＩＰＭ ｈｅａｔ ｓｉｎｋ ｖｅｒｙ
ｈｏｔ？
Ｙｅｓ
Ｙｅｓ
Ｙｅｓ
Ｎｏ Ｎｏ
Ｃｈｅｃｋ ｏｐｅｒａｔｉｏｎ
Ｒｅｐｌａｃｅ ｔｈｅ
ｏｕｔｄｏｏｒ ｃｏｎｔｒｏｌ
ｂｏａｒｄ，Ｄｏｅｓ ｔｈｉｓ
ｆａｕｌｔ ｄｉｓａｐｐｅａｒ？
Ｒｅｐｌａｃｅ ｔｈｅ ｗａｖｅ
ｆｉｌｔｅｒ
ｂｏａｒｄ，Ｄｏｅｓ ｔｈｉｓ
ｆａｕｌｔ ｄｉｓａｐｐｅａｒ？
ＩＰＭ ｔｒｏｕｂｌｅ
ａｐｐｅａｒ
ｆｒｅｑｕｅｎｔｌｙ？
Ｓｔａｒｔ ｕｐ ｔｈｅ ａｉｒ
ｃｏｎｄｉｔｉｏｎｅｒ ｉｎ ３０
ｍｉｎｕｔｅｓ，ｄｏｅｓ ｉｔ
ｗｏｒｋ Ｎｏｒｍａｌｌｙ？
ＩＰＭ ｆａｕｌｔ ａｐｐｅａｒｓ
ｆｒｅｑｕｅｎｔｌｙ？
Ｉｓ ｔｈｅ ｒｅｓｉｓｔａｎｃｅ ｏｆ
ｏｕｔｄｏｏｒ ｃｏｉｌ ｓｅｎｓｏｒ
ｃｏｒｒｅｃｔ？
Ｄｏｅｓ ｔｈｅ ｔｒｏｕｂｌｅ
ｄｉｓａｐｐｅａｒ ｉｎ ３
ｍｉｎｕｔｅｓ ？
Ｉｓ ｔｈｅ ｏｕｔｄｏｏｒ
ｈｅａｔ ｅｘｃｈａｎｇｅｒ
ｒｅａｌｌｙ ｈｏｔ？
Ｔｒｏｕｂｌｅ ｃｏｄｅ
ｉｎｄｏｏｒ１３
ＥＥＰＲＯＭ ｔｒｏｕｂｌｅ
Ｉｎｄｏｏｒ ｃｏｎｔｒｏｌ ｂｏａｒｄ
ｆａｕｌｔ ， ｒｅｐｌａｃｅ ｉｔ
Ｒｅｐｌａｃｅ
ｓｅｎｓｏｒ
Ｃｈｅｃｋ ｏｐｅｒａｔｉｏｎ
Ｅｒｒｏｒ ｃｏｄｅ
ｏｕｔｄｏｏｒ １
ｏｕｔｄｏｏｒ
ｔｅｍｐｅｒａｔｕｒｅ
ｓｅｎｓｏｒ ｔｒｏｕｂｌｅ
Ｅｒｒｏｒ ｃｏｄｅ
ｏｕｔｄｏｏｒ ２
ｏｕｔｄｏｏｒ ｃｏｉｌ
ｓｅｎｓｏｒ ｔｒｏｕｂｌｅ
Ｍｅａｓｕｒｅ
ｒｅｓｉｓｔａｎｃｅ
ｂｅｔｗｅｅｎ ＣＮ７
① ａｎｄ②
Ｍｅａｓｕｒｅ
ｒｅｓｉｓｔａｎｃｅ
ｂｅｔｗｅｅｎ ＣＮ７
③ ａｎｄ④
Ｄｏｅｓ ｔｈｅ
ｒｅｓｉｓｔａｎｃｅｓ ｏｆ
ｔｈｅｒｍｉｓｔｏｒ ｈａｖｅ
ｔｈｅ
ｃｈａｒａｃｔｅｒｉｓｔｉｃｓ ｏｎ
ｐａｇｅ ３１．
Ｒｅｐｌａｃｅ ｔｈｅ ｔｈｅｒｍｉｓｔｏｒ
Ｃｏｎｎｅｃｔ ＣＮ７．
Ｔｕｒｎ ＯＮ ｔｈｅ ｐｏｗｅｒ
ｓｕｐｐｌｙ ａｎｄ ｐｒｅｓｓ
ｔｈｅ ＥＭＥＲＧＥＮＣＹ
ＯＰＥＲＡＴＩＯＮ ＳＷＩＴＣＨ
Ｒｅｐｌａｃｅ ｔｈｅ
ｏｕｔｄｏｏｒ ｂｏａｒｄ
Ｏｋ ＊１
Ｄｏｅｓ ｔｈｅ
ｕｎｉｔ ｏｐｅｒａｔｅ
１０ ｍｉｎｕｔｅｓ
ｏｒ ｍｏｒｅ？
＊１ Ｄｅｆｅｃｔｉｖｅ ｃｏｎｔａｃｔ ｏｆ ｔｈｅ ｃｏｎｎｅｃｔｏｒ ｉｓ ｃｏｎｓｉｄｅｒｅｄ
Ｙｅｓ
Ｙｅｓ
Ｎｏ
Ｎｏ
Ｙｅｓ
7.SERVICE FLOW CHART
Ｅｒｒｏｒ ｃｏｄｅ ｏｕｔｄｏｏｒ ４
ｃｏｍｐｒｅｓｓｏｒ ｒｏｔｏｒ
ｐｏｓｉｔｉｏｎ ｔｅｓｔ ｅｒｒｏｒ
Ｎｏ
Ｙｅｓ
Ｏｕｔｄｏｏｒ ＩＰＭ ｃｏｎｔｒｏｌ
ｂｏａｒｄ ｆａｕｌｔｙ ｒｅｐｌａｃｅ
ｉｔ
ＮＯ
ＹＥＳ
Ｎｏｒｍａｌ
ｐｒｅｔｅｃｔｉｏｎ
ＥＥＰＲＯＭ ｅｒｒｏｒ
ｒｅｐｌａｃｅ ｔｈｅ ｏｕｔｄｏｏｒ
ＥＥＰＲＯＭ，ｔｈｅｎ ｓｔａｒｔ ｕｐ
ｔｈｅ ａｉ－ｃｏｎｄｉｏｎｅｒ ａｎｄ
ｔｅｓｔ
Ｓｈｕｔ ｄｏｗｎ ｔｈｅ
ａｉｒ－ｃｏｎｄｉｔｉｏｎｅｒ ａｎｄ
ｓｔａｒｔ ｕｐ ａｆｔｅｒ ５
ｍｉｎｕｔｅｓ ｏｒ
ｍｏｒｅ，ｔｈｅｎ ｔｅｓｔ
Ｅｒｒｏｒ ｃｏｄｅ ｏｕｔｄｏｏｒ ９
ｃｏｍｐｒｅｓｓｏｒ ｓｔａｒｔ ｕｐ
ｅｒｒｏｒ
Ｎｏ
Ｙｅｓ
Ｏｕｔｄｏｏｒ ＩＰＭ ｃｏｎｔｒｏｌ
ｂｏａｒｄ ｆａｕｌｔｙ ｒｅｐｌａｃｅ
ｉｔ
ＮＯ
ＹＥＳ
Ｎｏｒｍａｌ
ｐｒｅｔｅｃｔｉｏｎ
ＥＥＰＲＯＭ ｅｒｒｏｒ
ｒｅｐｌａｃｅ ｔｈｅ ｏｕｔｄｏｏｒ
ＥＥＰＲＯＭ，ｔｈｅｎ ｓｔａｒｔ ｕｐ
ｔｈｅ ａｉ－ｃｏｎｄｉｏｎｅｒ ａｎｄ
ｔｅｓｔ
Ｓｈｕｔ ｄｏｗｎ ｔｈｅ
ａｉｒ－ｃｏｎｄｉｔｉｏｎｅｒ ａｎｄ
ｓｔａｒｔ ｕｐ ａｆｔｅｒ ５
ｍｉｎｕｔｅｓ ｏｒ
ｍｏｒｅ，ｔｈｅｎ ｔｅｓｔ
7.SERVICE FLOW CHART
DC310V
+V15+V15
SENSOR
SENSOR
SENSOR
+12V+12V
+5V+5V
Display board
Electrical outlet
Step motor
Step motor
7805 12V+7805 12V
7805 5V+7805 5V
220V From power board()220V From power board()
Step motor
+5V+ 5V
+12V+12V
+12V+12V
+12V+12V
FAN MOTOR CONTROL
Control
To power board()
Control
To power board(
SI
HKEB - HCNB 351 X
HKEB - HCNB 261 X
8.ELECTRIC CONTROL BOARD
220V Output
+12V+12V
220V Input
From power supply()
220V Input
From power supply()
+5V+5V
220 Output
SI
TO TERMINAL
SI
HKEB - HCNB 351 X
HKEB - HCNB 261 X
8.ELECTRIC CONTROL BOARD
220V INPUT
From terminal
board()
220V
INPUT
From terminal
board()
+5V
+15V
Electric expansion
valve control
Electric expansion
valve
control
4-way valve4-way valve
+12V
sensor
Fan motor controlFan motor control
DC+
DC-
+15V
CONTROL
SINGAL TO IPM()
CONTROL
SINGAL TO IPM()
AC OUTPUT
SI
DC+DC+
DC-DC-
TO I PM
TO I PM
INPUT
8.ELECTRIC CONTROL BOARD
HKEB - HCNB 351 X
HKEB - HCNB 261 X
HKEB - HCNB 351 X
HKEB - HCNB 261 X
8.ELECTRIC CONTROL BOARD
IPM BACK
T('c) R(K o) V (v) T('c) R(K o) V(v) T('c) R(Ko) V(v)
－ ２０ ３ ９．５８ ０．５３０７ ９ １ ０．１ １ ．５８７８ ３ ８ ３ ．２６５ ２．９５０４
－ １９ ３ ７．５８ ０．５５５８ １ ０ ９ ．６８４ １．６３３８ ３ ９ ３ ．１５１ ２．９９３２
－ １８ ３ ５．６９ ０．５８１８ １ １ ９ ．２８４ １．６８０５ ４ ０ ３ ．０４１ ３．０３５８
－ １７ ３ ３．９１ ０．６０８７ １ ２ ８ ．９０３ １．７２７６ ４ １ ２ ．９３６ ３．０７７５
－ １６ ３ ２．２３ ０．６３６３ １ ３ ８．５４ １ ．７７４９ ４ ２ ２ ．８３５ ３．１１８８
－ １５ ３ ０．６５ ０．６６４８ １ ４ ８ ．１９４ １．８２２６ ４ ３ ２ ．７３９ ３ ．１５９
－ １４ ２ ９．１５ ０．６９４２ １ ５ ７ ．８６４ １．８７０４ ４ ４ ２ ．６４６ ３ ．１９９
－ １３ ２ ７．７４ ０．７２４４ １ ６ ７ ．５４９ １．９１８５ ４ ５ ２ ．５５６ ３．２３８７
－ １２ ２６ ．４ ０ ．７５５６ １ ７ ７ ．２４９ １．９６６７ ４ ６ ２ ．４７１ ３．２７７１
－ １１ ２ ５．１４ ０．７８７５ １ ８ ６ ．９６２ ２．０１５１ ４ ７ ２ ．３８８ ３．３１５５
－ １０ ２ ３．９５ ０．８２０２ １ ９ ６ ．６８８ ２．０６３６ ４ ８ ２ ．３０９ ３．３５２８
－ ９ ２ ２．８２ ０．８５３９ ２ ０ ６ ．４２７ ２． １１２ ４ ９ ２ ．２３３ ３．３８９６
－ ８ ２ １．７５ ０．８８８５ ２ １ ６ ．１７８ ２．１６０３ ５ ０ ２ ．１５９ ３．４２６２
－ ７ ２ ０．７４ ０．９２３７ ２ ２ ５ ．９３９ ２．２０８９ ５ １ ２ ．０８９ ３．４６１５
－ ６ １ ９．７９ ０．９５９６ ２ ３ ５ ．７１２ ２． ２５７ ５ ２ ２ ．０２１ ３．４９６５
－ ５ １ ８．８８ ０．９９６６ ２ ４ ５ ．４９４ ２．３０５３ ５ ３ １ ．９５６ ３．５３０６
－ ４ １ ８．０２ １．０３４３ ２ ５ ５ ．２８６ ２．３５３３ ５ ４ １ ．８９３ ３．５６４４
－ ３ １７ ．２ １ ．０７３１ ２ ６ ５ ．０８６ ２．４０１４ ５ ５ １ ．８３２ ３．５９７７
－ ２ １ ６．４３ １．１１２２ ２ ７ ４ ．８９６ ２．４４８９ ５ ６ １ ．７７４ ３．６２９９
－ １ １５ ．７ １．１５２ ２ ８ ４ ．７１４ ２．４９６３ ５ ７ １ ．７１８ ３．６６１６
０ １５ １ ．１９２９ ２ ９ ４ ．５３９ ２．５４３６ ５ ８ １ ．６６４ ３．６９２６
１ １ ４．３４ １．２３４２ ３ ０ ４ ．３７２ ２．５９０４ ５ ９ １ ．６１２ ３．７２３１
２ １ ３．７１ １．２７６５ ３ １ ４ ．２１２ ２．６３６９ ６ ０ １ ．５６２ ３．７５２８
３ １ ３．１１ １．３１９５ ３ ２ ４ ．０５９ ２． ６８３ ６ １ １ ．５１３ ３．７８２４
４ １ ２．５５ １．３６２３ ３ ３ ３ ．９１２ ２．７２８８ ６ ２ １ ．４６７ ３．８１０６
５ １ ２．０１ １．４０６３ ３ ４ ３ ．７７２ ２．７７３８ ６ ３ １ ．４２２ ３．８３８６
６ １１ ．５ １ ．４５０６ ３ ５ ３ ．６３７ ２．８１８８ ６ ４ １ ．３７９ ３．８６５８
７ １ １．０１ １．４９５９ ３ ６ ３ ．５０８ ２．８６３１ ６ ５ １ ．３３７ ３．８９２７
８ １ ０．５５ １． ５４１ ３ ７ ３ ．３８４ ２． ９０７
THE PARAMETER OF THE COIL AND INDOOR AND OUTDOOR SENSOR
9.SENSOR PARAMETER
9.SENSORPARAMETER
T ('C) R (O ) V ( v) T ( ' C ) R ( O ) V ( v) T('C) R (O ) V( v)
－１０ ３１３．４ ０．３ ３１ ４４．７４ １．５４５ ７１ ９．６５９ ３．３７２
－９ ２９７．２ ０．３１５ ３２ ４２．８９ １．５９ ７２ ９．３３１ ３．４０９
－８ ２８１．９ ０．３３１ ３３ ４１．１３ １．６３６ ７３ ９．０１６ ３．４４６
－７ ２６７．５ ０．３４８ ３４ ３９．４４ １．６８２ ７４ ８．７１２ ３．４８３
－６ ２５３．９ ０．３６５ ３５ ３７．８４ １．７２９ ７５ ８．４２１ ３．５１９
－５ ２４１．１ ０．３８３ ３６ ３６．３ １．７７６ ７６ ８．１４ ３．５５４
－４ ２２９ ０．４０２ ３７ ３４．８４ １．８２３ ７７ ７．８６９ ３．５８８
－３ ２１７．６ ０．４２１ ３８ ３３．４４ １．８７１ ７８ ７．６０９ ３．６２２
－２ ２０６．８ ０．４４１ ３９ ３２．１１ １．９１９ ７９ ７．３５９ ３．６５５
－１ １９６．６ ０．４６２ ４０ ３０．８３ １．９６７ ８０ ７．１１８ ３．６８８
０ １８６．９ ０．４８３ ４１ ２９．６１ ２．０１６ ８１ ６．８８５ ３．７２
１ １７７．８ ０．５０６ ４２ ２８．４５ ２．０６４ ８２ ６．６６２ ３．７５１
２ １６９．２ ０．５２９ ４３ ２７．３４ ２．１１２ ８３ ６．４４６ ３．７８１
３ １６１ ０．５５２ ４４ ２６．２７ ２．１６１ ８４ ６．２３９ ３．８１１
４ １５３．３ ０．５７７ ４５ ２５．２５ ２．２１ ８５ ６．０３９ ３．８４
５ １４６ ０．６０２ ４６ ２４．２８ ２．２５８ ８６ ５．８４６ ３．８６９
６ １３９ ０．６２９ ４７ ２３．３５ ２．３０７ ８７ ５．６６１ ３．８９７
７ １３２．５ ０．６５６ ４８ ２２．４６ ２．３５５ ８８ ５．４８２ ３．９２４
８ １２６．３ ０．６８４ ４９ ２１．６ ２．４０４ ８９ ５．３０９ ３．９５１
９ １２０．４ ０．７１２ ５０ ２０．７９ ２．４５２ ９０ ５．１４３ ３．９７７
１０ １１４．８ ０．７４２ ５１ ２０．０１ ２．４９９ ９１ ４．９８２ ４．００３
１１ １０９．５ ０．７７２ ５２ １９．２６ ２．５４７ ９２ ４．８２７ ４．０２８
１２ １０４．４ ０．８０４ ５３ １８．５４ ２．５９５ ９３ ４．６７８ ４．０５２
１３ ９９．６６ ０．８３６ ５４ １７．８５ ２．６４２ ９４ ４．５３４ ４．０７６
１４ ９５．１３ ０．８６９ ５５ １７．１９ ２．６８９ ９５ ４．３９５ ４．０９９
１５ ９０．８２ ０．９０２ ５６ １６．５６ ２．７３５ ９６ ４．２６１ ４．１２２
１６ ８６．７４ ０．９３７ ５７ １５．９６ ２．７８１ ９７ ４．１３２ ４．１４４
１７ ８２．８５ ０．９７２ ５８ １５．３８ ２．８２６ ９８ ４．００７ ４．１６５
１８ ７９．１６ １．００８ ５９ １４．８２ ２．８７２ ９９ ３．８８６ ４．１８７
１９ ７５．６５ １．０４５ ６０ １４．２９ ２．９１６ １００ ３．７７ ４．２０７
２０ ７２．３２ １．０８３ ６１ １３．７８ ２．９６ １０１ ３．６５８ ４．２２７
２１ ６９．１５ １．１２２ ６２ １３．２８ ３．００５ １０２ ３．５４９ ４．２４６
２２ ６６．１３ １．１６１ ６３ １２．８１ ３．０４８ １０３ ３．４４４ ４．２６５
２３ ６３．２７ １．２０１ ６４ １２．３６ ３．０９ １０４ ３．３４３ ４．２８４
２４ ６０．５４ １．２４２ ６５ １１．９３ ３．１３２ １０５ ３．１５ ４．３２
２５ ５７．９４ １．２８３ ６６ １１．５１ ３．１７４ １０６ ３．０５９ ４．３３７
２６ ５５．４６ １．３２５ ６７ １１．１１ ３．２１４ １０７ ２．９７ ４．３５４
２７ ５３．１１ １．３６８ ６８ １０．７３ ３．２５４ １０８ ２．８８４ ４．３７
２８ ５０．８６ １．４１１ ６９ １０．３６ ３．２９４ １０９ ２．８０２ ４．３８６
２９ ４８．７２ １．４５５ ７０ １０ ３．３３３ １１０ ２．７２１ ４．４０１
３０ ４６．６８ １．５
THEPARAMETEROFTHEDISCHARGESENSOR
10. DISASSEMBLY INSTRUCTIONS
1．Remove the grille
1）Take out the screw of the installation plate and remove
the installation plate.
2）Take out the screws of the mounting plate .
3）Hold the both sides of the front panel and drag it towards
oneself and remove it.
4）Take out the screws of the ornamengt grille and remove the
ornament grille.
5）Take away the air filters in the grille.
6）Open the screw cover ,then take out the screws of the
grille and remove the grille.
7) Remove the mounting plate.
HKEB 261 X
OPERATION PROCEDURE
PHOTOS
Screw
Installation Plate
Screw
Mounting Plate
Base Ass'y
Front Panel
Grille
Ornament Grille
Air Filter
Screw
Screw
Display Board
2．Remove the electrical control box
1）Take out the screw of the electrical cover and remove it.
2）Remove the indoor coil sensor from the sensor bracket.
3）Take out the screws of the electrical control box and
disconnect all the connectors on the printed circuit
board,then remove the electrical box.
Screw
Electrical Cover
Indoor Coil Sensor
Screw
Terminal Screw
Screw
HKEB 351 X
10. DISASSEMBLY INSTRUCTIONS
1）Remove the air outlet frame.
2) Take out the screws of the evaporator supportor and remove
the evaporator supportor.
3) Take out the screws of the motor cover and remove the motor
cover.
4) Take away the mounting plate and then remove the evaporator.
3.Remove the air outlet frame and the evaporator
1）Take out the screw of the rubber cover and remove the
rubber cover.
2）Remove the screw connecting the fan motor and the
cross-flow fan.
3）Remove the fan motor and the bearing ass'y.
4）Remove the cross-flow fan.
4. Remove the fan motor and the cross-flow fan
HKEB 261 X
Evaporator
Air Outlet Frame
Screws
Evaporator Supportor
Screws
Motor Cover
Mounting late
Cross-Flow Fan
Base Ass'y
Fan Motor
Fan Motor
Screws
Screw
Rubber Cover
Bearing Ass'y
HKEB 351 X
1．Remove the top panel and the front panel
1）Take out the screws of the top panel and remove the top
panel.
2）Take out the screws of the strengthen plate and remove it.
3) Take out the screws of the front panel and remove the panel.
2．Remove the electrical control box
1）Take out the screws of the valve cover and remove the
valve cover.
2）Take out the screws of the side cover and remove the cover.
3）Take out the screws of the electrical box cover and remove it.
4) Disconnect all the wires in the electrical control box and the
other parts.
4）Take out the screws of the electrical control box and remove
ｅｌｅｃｔｒｉｃａｌ ｃｏｎｔｒｏｌ ｂｏｘ.
OPERATION PROCEDURE
PHOTOS
10. DISASSEMBLY INSTRUCTIONS
HCNB 261 X - HCNB 351 X
Ｓｃｒｅｗ
Ｓｃｒｅｗ
Ｓｃｒｅｗ
Ｔｏｐ Ｐａｎｅｌ
Ｓｉｄｅ Ｃｏｖｅｒ
Ｖａｌｖｅ Ｃｏｖｅｒ
Ｆｒｏｎｔ Ｐａｎｅｌ
Ｆａｎ Ｇｕａｒｄ
Ｓｃｒｅｗ
Ｓｃｒｅｗ
Ｓｔｒｅｎｇｔｈｅｎ Ｐｌａｔｅ
Ｓｃｒｅｗ
Ｓｃｒｅｗ
Ｓｃｒｅｗ
Ｓｃｒｅｗ
Ｓｃｒｅｗ
Ｓｃｒｅｗ
Ｅｌｅｃｔｒｉｃａｌ ｃｏｖｅｒ
Ｏｕｔｓｉｄｅ ｆａｎ
Ｆａｎ ｓｕｐｐｏｒｔｏｒ
Ｅｌｅｃｔｒｉｃａｌ Ｂｏｘ
Ｃｏｎｄｅｎｓｅｒ Ａｓｓ＇ｙ
1）Take out the screws of the back panel.
2）Remove the back panel.
3.Remove the back panel
1）Take out the special nut of the fan and remove the fan.
2）Take out the screws of the fan motor and remove the fan motor.
3）Take out the screws of the fan supporter and remove the
fan supporter.
4）Take out the screws of the partition plate and remove
the partition plate.
1）Check-up the condenser ass'y.
2）Check-up the compreesor ass'y.
3）Check-up the bａｓｅ ass'y.
5．Check-up the other parts of the outdoor units
Ｃｏｍｐｒｅｅｓｏｒ ａｓｓ＇ｙ
Ｂａｓｅ ａｓｓ＇ｙ
Ｃｏｎｄｅｎｓｅｒ ａｓｓ＇ｙ
Ｆａｎ
Ｓｐｅｃｉａｌ ｎｕｔ
HCNB 261 X - HCNB 351 X
Ｆａｎ Ｓｕｐｐｏｒｔｏｒ
Ｓｅｐｅｒａｔｏｒ Ｐｌａｔｅ
Ｓｃｒｅｗ
Ｓｃｒｅｗ
10. DISASSEMBLY INSTRUCTIONS
4.Remove the fan ,fan motor,fan supportor and the separate
plate.
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