Indoor Unit Outdoor Unit CS-E28NFQ CU-E28NFQ

Order No: PAPAGZ120511CE
Indoor Unit Outdoor Unit
CS-E28NFQ CU-E28NFQ
WARNING
This service information is designed for experienced repair technicians only and is not designed for use by the general
public.
It does not contain warnings or cautions to advise non-technical individuals of potential dangers in attempting to service a
product. Products powered by electricity should be serviced or repaired only by experienced professional technicians. Any
attempt to service or repair the products dealt with in this service information by anyone else could result in serious injury or
death.
TABLE OF CONTENTS
1. Safety Precautions............................... 3
7. Block Diagram.................................... 14
2. Specification......................................... 5
8. Wiring Diagram .................................. 15
3. Feature .................................................. 8
9. Printed Circuit Board......................... 16
4. Location of Controls and Components
……………………………………………...9
4.1
4.2
4.3
4.4
Indoor Unit ....................................... 9
Control Panel of Indoor Unit ............ 9
Outdoor Unit .................................. 10
Remote Control ............................. 10
5. Dimensions......................................... 11
5.1
5.2
Indoor Unit ..................................... 11
Outdoor Unit .................................. 12
6. Refrigeration Cycle Diagram ............. 13
9.1
Indoor Unit..................................... 16
10. Installation Instruction....................... 17
10.1 Select the Best Location................ 17
10.2 Indoor Unit..................................... 18
10.3 Outdoor Unit .................................. 19
11. Service Mode...................................... 21
11.1 Functions of Combination buttons
(
and
).................................... 21
11.2 Operation of Remote Control......... 22
12. Control Panel...................................... 23
© Panasonic Appliances Air-Conditioning (Guangzhou)
Co., Ltd (PAPAGZ) 2012. Unauthorized copying and
distribution is a violation of law.
12.1 CHILD LOCK................................. 23
13. Operation Control .............................. 25
13.1 Basic Function............................... 25
13.2 Indoor Fan Motor Operation .......... 27
13.3 Outdoor Fan Motor Operation ....... 28
14. Protection control .............................. 30
14.1 Protection Control for All Operations
……………………………………….30
14.2 Protection Control for Cooling and
Soft Dry Operation.................................. 33
14.3 Indoor Piping Air Temperature
Control (Heating) .................................... 34
15. Troubleshooting Guide ..................... 36
15.1 Refrigeration cycle system ............ 36
15.2 Refrigeration cycle system ............ 37
16. Disassembly
and
Assembly
Instructions.............................................. 38
17. Technical Data.................................... 41
17.1 Operation Characteristics .............. 41
18. Exploded View and Replacement Pars
List............................................................ 45
18.1 Indoor Unit..................................... 45
18.2 Outdoor Unit .................................. 51
2
1. Safety Precautions
•
•
•
•
Read the following “SAFETY PRECAUTIONS” carefully before perform any servicing.
Electrical work must be installed or serviced by a licensed electrician. Be sure to use the
correct rating of the power plug and main circuit for the model installed.
The caution items stated here must be followed because these important contents are related
to safety. The meaning of each indication used is as below. Incorrect installation or servicing
due to ignoring of the instruction will cause harm or damage, and the seriousness is classified
by the following indications.
WARNING
This indication shows the possibility of causing death or serious injury
CAUTION
This indication shows the possibility of causing injury or damage to properties.
The items to be followed are classified by the symbols:
Symbol with white background denotes item that is PROHIBITED from doing.
Symbol with dark background denotes item that must be carried out.
•
Carry out test run to confirm that no abnormality occurs after the servicing. Then, explain to
user the operation, care and maintenance as stated in instructions. Please remind the
customer to keep the operating instructions for future reference.
WARNING
1. Do not install outdoor unit near handrail of veranda. When installing air-conditioner unit at veranda of high rise building,
child may climb up to outdoor unit and cross over the handrail and causing accident.
2. Do not use unspecified cord, modified cord, joint cord or extension cord for power supply cord. Do not share the single
outlet with other appliances. Poor contact, poor insulation or over current will cause electrical shock or fire.
3. Do not tie up the power supply cord into a bundle by hand. Abnormal temperature rise on power supply cord may
happen.
4. Do not insert your fingers or other objects into the unit, high speed rotating fan may cause injury.
5. Do not sit or step on the unit, you may fall down accidentally.
6. Keep plastic bag (packaging material) away from small children, it may cling to nose and mouth and prevent breathing.
7. When install or relocate air conditioner, do not let any substance other than the specified refrigerant, eg. air etc. mix into
refrigeration cycle (piping). Mixing of air etc. will cause abnormal high pressure in refrigeration cycle and result in
explosion, injury etc.
8. • For R410A models, when connecting the piping, do not use any existing (R22) pipes and flare nuts. Using such
same may cause abnormally high pressure in the refrigeration cycle (piping), and possibly result in explosion and
injury. Use only R410A materials.
• Thickness or copper pipes used with R410A must be more than 0.8 mm. Never use copper pipes thinner than 0.8 mm
• It is desirable that the amount of residual oil is less than 40 mg/10 m.
9. Engage dealer or specialist for installation. If installation done by the user is defective, it will cause water leakage,
electrical shock or fire.
10. Install according to this installation instructions strictly. If installation is defective, it will cause water leakage, electrical
shock or fire.
11. Use the attached accessories parts and specified parts for installation. Otherwise, it will cause the set to fall, water
leakage, fire or electrical shock.
12. Install at a strong and firm location which is able to withstand the set’s weight. If the strength is not enough or
installation is not properly done, the set will drop and cause injury.
13. For electrical work, follow the local national wiring standard, regulation and this installation instruction. An independent
circuit and single outlet must be used. If electrical circuit capacity is not enough or defect found in electrical work, it
will cause electrical shock or fire.
3
14. Do not use joint cable for indoor/outdoor connection cable. Use the specified Indoor/Outdoor connection cable, refer to
installation instructions CONNECT THE CABLE TO THE INDOOR UNIT and connect tightly for indoor / outdoor
connection. Clamp the cable so that no external force will be acted on the terminal. If connection or fixing is not
perfect, it will cause heat up or fire at the connection.
15. Wire routing must be properly arranged so that control board cover is fixed properly. If control board cover is not fixed
perfectly, it will cause fire or electrical shock.
16. This equipment is strongly recommended to be installed with Earth Leakage Circuit Breaker (ELCB) or Residual
Current Device (RCD). Otherwise, it may cause electrical shock and fire in case equipment breakdown or insulation
breakdown.
17. During installation, install the refrigerant piping properly before running the compressor. Operation of compressor
without fixing refrigeration piping and valves at opened condition will cause suck-in of air, abnormal high pressure in
refrigeration cycle and result in explosion, injury etc.
18. During pump down operation, stop the compressor before remove the refrigeration piping. Removal of refrigeration
piping while compressor is operating and valves are opened will cause suck-in of air, abnormal high pressure in
refrigeration cycle and result in explosion, injury etc.
19. Tighten the flare nut with torque wrench according to specified method. If the flare nut is over-tightened, after a long
period, the flare may break and cause refrigerant gas leakage.
20. After completion of installation or service, confirm there is no leakage of refrigerant gas. It may generate toxic gas
when the refrigerant contacts with fire.
21. Ventilate if there is refrigerant gas leakage during operation. It may cause toxic gas when the refrigerant contacts with
fire.
22. The appliance shall be installed in accordance with national wiring regulations.
23. Indoor unit must be installed close against the wall.
24. This equipment must be properly earthed. Earth line must not be connected to gas pipe, water pipe, earth of lightning
rod and telephone. Otherwise, it may cause electrical shock in case equipment breakdown or insulation breakdown.
CAUTION
1. Do not install the unit at place where leakage of flammable gas may occur. In case gas leaks and accumulates
at surrounding of the unit, it may cause fire.
2. Do not release refrigerant during piping work for installation, re-installation and during repairing a refrigeration
parts. Take care of the liquid refrigerant, it may cause frostbite.
3. Do not install this appliance in a laundry room or other location where water may drip from the ceiling, etc.
4. Thermal fuse specification for indoor unit: 250V 3.15A T3.15AL; outdoor unit: 250V 3.15A T3.15AL,.
5. Do not touch sharp aluminums fin. Sharp parts may cause injury.
6. Carry out drainage piping as mentioned in installation instructions. If drainage is not perfect, water may enter the
room and damage the furniture.
7. Select an installation location which is easy for maintenance.
8. Power supply connection to the air conditioner.
Connect the power supply cord of the air conditioner to the mains using one of the following method.
Power supply point should be in easily accessible place for power disconnection in case of emergency.
In some countries, permanent connection of this air conditioner to the power supply is prohibited.
Power supply connection to a circuit breaker for the permanent connection. Use an approved 25A circuit
breaker for the permanent connection. It must be a double pole switch with a minimum 3 mm contact gap.
7. Installation or servicing work.
It may need two people to carry out the installation and service work.
4
2. Specification
Model
kW
Capacity
BTU/h
kJ/h
Running Current
A
Input Power
W
kJ/hW
EER
BTU/hW
Power Factor
%
dB-A(H / L / QLo)
Indoor Noise
Power Level
dB-A (H / L )
Outdoor Noise
Power Level
kW
Capacity
BTU/h
kJ/h
Running Current
A
Input Power
W
kJ/hW
COP
BTU/hW
Power Factor
%
dB-A(H / L / QLo)
Indoor Noise
Power Level
dB-A (H / L )
Outdoor Noise
Power Level
Max Current (A) / Max Input Power (W)
Starting Current (A)
Type
Compressor Motor Type
Output Power
W
Type
Material
Motor Type
Input Power
W
Output Power
W
Q-Lo
rpm
Speed
Lo
rpm
(COOLING) Me
rpm
Hi
rpm
Q-Lo
rpm
Speed
Lo
rpm
(HEATING) Me
rpm
Hi
rpm
Type
Material
Motor Type
Outd
oor
Fan
Indoor Fan
HEATING
COOLING
Power Supply
Indoor
Outdoor
Phase, Hz
V
5
CS-E28NFQ
CU-E28NFQ
Single, 50/60
230
Min
Rate
Max
1.00
7.20
7.50
3600
25920
27000
12.2
210
2550
2600
17.1
10.1
10.3
95
Hi: 43 Lo: 36 QLo: 33
Hi: 51 Lo: 1.00
8.30
10.35
3600
29880
37260
11.8
200
2500
3400
18.0
11.9
10.9
96
Hi: 43 Lo: 36 QLo: 33
Hi: 53 Lo: 14.8 / 3.400k
12.9
Hermetic Motor compressor
BRUSHLESS (4 poles)
2000
Acentric-flow fan
ASG30K1(AS+30%GF)
DC (8 poles)
67.5
48
300
320
380
440
290
320
380
430
Propeller
PP(GF+PD)30%
DC (8 poles)
Piping
Input Power
Output Power
Hi(C)
Speed
Hi(H)
Moisture Removal
Q-Lo
Indoor Airflow
Lo
(COOLING)
Me
Hi
Q-Lo
Indoor Airflow
Lo
(HEATING)
Me
Hi
Hi (Cooling)
Outdoor Airflow
Hi (Heating)
Control Device
Refrigeration
Refrigerant Oil
Cycle
Refrigerant Type
Dimension
Height(I/D / O/D)
Width (I/D / O/D)
Depth (I/D / O/D)
Weight
Net (I/D / O/D)
Pipe Diameter
(Liquid / Gas)
Standard length
Length range (min – max)
I/D & O/D Height different
Additional Gas Amount
Length for Additional Gas
Drain Hose Inner diameter
Length
Fin Material
Indoor Heat Fin Type
Exchanger Row x Stage x FPI
Size (W x H x L)
Fin Material
Outdoor
Fin Type
Heat
Row x Stage x FPI
Exchanger
Size (W x H x D)
Material
Air Filter
Type
Power Supply
Power Supply Cord
Thermostat
Protection Device
W
W
rpm
rpm
L/h (Pt/h)
m3/min (ft3/m)
m3/min (ft3/m)
m3/min (ft3/m)
m3/min (ft3/m)
m3/min (ft3/m)
m3/min (ft3/m)
m3/min (ft3/m)
m3/min (ft3/m)
m3/min (ft3/m)
m3/min (ft3/m)
cm3
g (oz)
mm (inch)
mm (inch)
mm (inch)
kg (lb)
104.8
60
690
690
4.2 (7.39)
6.51(230)
7.60(368)
10.0(353)
16.0 (565)
6.94 (245)
7.57 (267)
8.86 (313)
16.0 (565)
59.5 (2100)
59.5 (2100)
EXPANSION VALVE
FV50S (480)
R410A, 640 (22.6)
1880 (74-1/64)
700 (27-9/16)
540 (21-16/64)
998 (39-19/64)
357 (14-1/16)
320 (12-19/32)
37 (82)
46 (101)
mm (inch)
6.35 (1/4) / 12.70 (1/2)
m (ft)
m (ft)
m (ft)
g/m (oz/ft)
m (ft)
mm
mm
5 (16.4)
3 (9.8) ~ 15 (49.2)
10 (32.8)
20 (0.2)
7.0 (23.0)
16
690
Pre coated
Slit Fin
2 x 36 x 19
380 x 756 x 25.4
Pre coated
Slit Fin
2 x 26 x 19
969.4(934.8) x 660 x 44
PP-12X13H2
One-touch
Indoor
25A
-
mm
mm
A
TEMPERATURE (°C )
Indoor Operation Range
Outdoor Operation Range
Maximum
Minimum
Maximum
Minimum
6
COOLING
DB
WB
32
23
16
11
43
26
16
11
HEATING
DB
WB
30
16
24
18
-5
-6
1. Cooling capacities are based on indoor temperature of 27°C Dry Bulb (80.6°F Dry Bulb),
19°C Wet Bulb (66.2°F Wet Bulb) and outdoor air tem perature of 35°C Dry Bulb (95.0°F Dry
Bulb), 24°C Wet Bulb (75.2°F Wet Bulb).
2. Heating capacities are based on indoor temperature of 20°C Dry Bulb (68°F Dry Bulb) and
outdoor air temperature of 7°C Dry Bulb (44.6°F Dry Bulb), 6°C Wet Bulb (42.8°F Wet Bulb).
3. Specifications are subjected to change without prior notice for further improvement.
7
3. Feature
•
R410A refrigerant
•
Inverter Technology
o Wider output power range
o Energy saving
o Quick Cooling
o More precise temperature control
•
Long Installation Piping
o CS/CU-E28NFQ, long piping up to 15 meters.
•
Easy to use wireless remote control
•
Automatic movable panel of discharge grille
•
Quality Improvement
o Random auto restart after power failure for safety restart operation
o Gas leakage protection
o Prevent compressor reverse cycle
o Inner protector to protect compressor
•
Operation Improvement
o Quiet mode to reduce the indoor unit operating sound
o Powerful mode to reach the desired room temperature quickly
o 12-hour timer
o Child lock mode to prevent children from misoperating air conditioner.
o Cleaning mode to make it convenient for cleaning and maintenance of the air conditioner.
o Both vertical airflow louver and Horizontal airflow louver can be controlled by remote
controller.
•
Serviceability Improvement
o Breakdown Self Diagnosis Function.
•
AIR FILTER supplied.
8
4. Location of Controls and Components
4.1
Indoor Unit
VERTICALLYMOVABLEPANEL
HORIZONTAL AIRFLOW
DIRECTION LOUVER
VERTICAL AIRFLOW
DIRECTION
LOUVER
CONTROL PANEL
AIR FILTER
INTAKE PANEL
4.2
Control Panel of Indoor Unit
Power Display
Set Temperature and Room
Temperature Display
Left and Right
Airflow Direction
Up and Down
Airflow Direction
Powerful and Quiet
Display
Child Lock
Fan Speed
Operation Mode Display
Timer Display
Temperature Setting
To Adjust Horizontal
Airflow Direction
To Adjust Vertical Airflow Direction
To Select Operation Mode
To Select Fan
Speed
To Enter Child Lock Mode And Cleaning
Mode
To Turn ON or OFF
unit
9
4.3
Outdoor Unit
Air inlet(side)
Air inlet(rear)
Air outlet
4.4
Remote Control
Transmitter
OFF/ON
Operation mode
Temperature setting
Fan speed selection
Powerful mode
Left and right airflow direction
adjustment
Room temperature setting
Up and down airflow
direction adjustment
Timer setting
10
5. Dimensions
5.1
Indoor Unit
Unit: mm
Remote control
11
5.2
Outdoor Unit
Unit: mm
12
6. Refrigeration Cycle Diagram
13
7. Block Diagram
14
8. Wiring Diagram
15
9. Printed Circuit Board
9.1
Indoor Unit
9.1.1
Main Printed Circuit Board
9.1.2
Display Printed Circuit Board
16
10. Installation Instruction
10.1 Select the Best Location
10.1.1 Indoor Unit
• Do not install the unit in excessive oil fume area such as
•
•
•
•
•
•
•
10.1.3 Indoor/Outdoor Unit
Installation Diagram
kitchen, workshop and etc.
There should not be any heat source or steam near
the unit.
There should not be any obstacles blocking the air
circulation.
A place where air circulation in the room is good.
A place where drainage can be easily done.
A place where noise prevention is taken into
consideration.
Do not install the unit near the door way.
Ensure the spaces indicated by arrows from the wall,
ceiling, fence or other obstacles.
10.1.2 Outdoor Unit
• If an awning is built over the unit to prevent direct
sunlight or rain, be careful that heat radiation from the
condenser is not obstructed.
• There should not be any animal or plant which could
be affected by hot air discharged.
• Keep the spaces indicated by arrows from wall,
ceiling, fence or other obstacles.
• Do not place any obstacles which may cause a short
circuit of the discharged air.
• Outdoor unit is installed in outdoors.
• If piping length is over [piping length for add. gas],
additional refrigerant should be added as shown in
the table below:
Piping size
Min
Max
Piping
Rated
Max
Additional
Piping Piping
length for
Model Gas Liquid Length Elevation
Refrigerant
Length Length
add. gas
(m)
(g/m)
(inch) (inch) (m)
(m)
(m)
(m)
E28NFQ 1/2” 1/4"
5
10
3
15
20
7
*This illustration is for explanation
purposes only.
The indoor unit will actually face a
different way.
Example: If the unit is installed at a 10m distance, the quantity of
additional refrigerant should be 60g.…… (10-7)m x 20g/m = 60g.
17
10.2 Indoor Unit
10.2.1 To Drill a Hole in the Wall and Install a Sleeve of Piping
There are three piping arrangements: left, right and right
rear piping.
1
2
3
4
Drill a hole as the right figure.
Insert the piping sleeve to the hole.
Fix the busing to the sleeve.
Cut the sleeve until it extrudes about 15mm from
the wall.
Caution
When the wall is hollow, please be sure to use the
sleeve for tube ass’y to prevent dangers caused
by mice biting the connecting cable.
5 Finish by sealing the sleeve with putty or caulking
compound at the final stage.
10.2.2
1.
2.
3.
To Connect The Drain Hose
The drain hose should be insulated.
The drain hose should be sloped down. Any upturn is not permitted.
The foamed plastic around the air inlet duct should not be touched
by the drain hose.
4. A drainage test should be carried out to assure a good drainage.
10.2.3 Connect the Cable to the Indoor Unit
1 Open and take away the intake grille.
2 Loosen the two fixing screws, remove the terminal
board cover.
3 Fix the connecting cable onto the terminals on the
control board.
4 Secure the connecting cable using clamp.
Notes:
Earth lead wire shall be longer than
the other lead wires as shown in the
figure for the electrical safety in case
of the slipping out of the cord from
the anchorage.
The bushing must be fitted on after
any installation aperture is opened.
Otherwise the wire may be damaged
cutting and lead to a fire.
18
WIRE STRIPPING AND CONNECTING REQUIRMENT
10.3 Outdoor Unit
10.3.1 Install the Outdoor Unit
• After selecting the best location, start installation according to indoor/outdoor unit installation
diagram.
1 Fix the unit on concrete or rigid frame firmly
and horizontally by bolt nut (ø10 mm).
Unit: mm
2 When installing at roof, please consider
strong wind and earthquake. Please fasten
the installation stand firmly with bolt or nails.
10.3.2 Connecting the Piping
10.3.2.1
Connecting the piping to indoor unit
Please make flare after inserting flare nut (locate at joint portion, of tube assembly) onto the
copper pipe. (In case of using long piping)
Connect the piping
• Align the center of piping and sufficiently tighten the flare nut with fingers.
• Further tighten the flare nut with torque wrench in specified torque as stated in the table.
Spanner
or Wrench
Torque
wrench
Piping size
(Torque)
1/4”
18N•m(1.8kgf.m)
3/8"
42N•m(4.2kgf.m)
1/2”
55N•m(5.5kgf.m)
Caution: Do not over tighten.
Over tightening causes gas
leakage.
Connecting the piping to outdoor unit
Decide piping length and then cut by using pipe cutter. Remove burrs from cut edge. Make flare
after inserting the flare nut (locate at valve) onto the copper pipe. Align center of piping to valves
and then tighten with torque wrench to the specified torque as stated in the table.
19
10.3.2.2
Cutting and flaring the piping
1 Please cut using pipe cutter and then remove the burrs.
2 Remove the burrs by using reamer. If burrs are not removed, gas leakage may be caused.
Turn the piping end down to avoid the metal powder entering the pipe.
3 Please make flare after inserting the flare nut onto the copper pipes.
10.3.3 Evacuation of the equipment
When installing an air conditioner, be sure to evacuate the air inside the indoor unit and pipes in
the follwing procidure.
1 Connect a charging hose with a push pin to the low side of a charging set and the service
port at the 3-way valve.
Be sure to connect the end of charging hose with the push pin to the service port.
2 Connect the center hose of the charging set to a vacuum pump with check valve, or
vacuum pump and vacuum pump adaptor.
3 Turn on the power switch of the vacuum pump and make sure that the needle in the gauge
moves from 0 cmHg (0 Mpa) to -76 cmHg (-0.1 Mpa). Then evacuate the air approximately
ten minutes.
4 Close the Low side valve of the charging set and turn off the vacuum pump. Make sure
that the needle in the gauge does not move after approximately five minutes.
Note: BE SURE TO FOLLOW THIS PROCEDURE IN ORDER TO AVOID REFRIGEANT
GAS LEAKAG
5 Disconnect the charging horse from the vacuum pump and from the service port of the 3way valve.
6 Tighten the service port caps of the 3-way valve at a torque of 18 N.m with a torque
wrench.
7 Remove the valve caps of both of the 2-way valve and 3-way valve. Position both of the
valves to “OPEN” using a hexagonal wrench (4mm).
8 Mount valve caps onto the 2-way and the 3-way valve.
Be sure to check for gas leakage.
20
CAUTION:
● If gauge needle does not move from 0 cmHg (0 MPa) to -76 cmHg (-0.1 MPa), in step 3
above take the following measure:
● If the leak stops when the piping connections are tightened further, continue working from step
3.
● If the leak does not stop when the connections are retightened, repair the location of leak.
● Do not release refrigerant during piping work for installation and reinstallation. Take care of
the liquid refrigerant, it may cause frostbite.
10.3.4 Connect the cable to the Outdoor Unit
1 Remove the control board cover from the unit by loosening the screw.
2 Connecting cable between indoor unit and outdoor unit shall be approved polychloroprene
sheathed 4x 1.5mm2 flexible cord, type designation 245 IEC 57 or heavier cord.
3 Secure the cable onto the control board with the holder (clamper).
4 Attach the control board cover back to the original position with the screw.
5 For wiring stripping and connection requirement, refer to instruction 9.2.4 of indoor unit.
10.3.5 Pipe Insulation
1 Please carry out insulation at pipe connection portion as mentioned in Indoor/Outdoor Unit
Installation Diagram. Please warp the insulated piping end to prevent water from going
inside the piping.
2 If drain hose or connecting piping is in the room (where dew may form), please increase
the insulation by using POLY-E-FOAM with thickness 6mm or above.
11. Service Mode
11.1 Functions of Combination buttons(
(
and
)
1. AUTO OPERATION MODE
Press
and
buttons simultaneously on control area of control panel simultaneity to
enter AUTO operation Mode.
2. Force Cooling Operation
Press
and
buttons simultaneously on control area of indoor control panel, hold for
5~9 seconds until a Beep sound is heard. Unit will enter force cooling operation mode.
3. Receiving Sound ON/OFF
and
buttons simultaneously on control area of indoor control panel, hold for
Press
9~13 seconds until double Beep sound is heard. And then, a Beep sound indicates receiving
21
sound OFF, and a long Beep sound indicates receiving sound ON.
4. Auto Restart ON/OFF
Press
and
buttons simultaneously on control area of indoor control panel, hold for
20~25 seconds until long Beep sound is heard. And then, a long Beep sound indicates Auto
Restart OFF, and a Beep sound indicates Auto Restart ON.
11.2 Operation of Remote Control
11.2.1 Mode selecting button
AUTO, HEAT, COOL, DRY can be selected by pressing “MODE” button.
*Keeping the button depressed continuously, the operation mode will change in the following
order in turn.
AUTO—HEAT—COOL—DRY—AUTO
*Corresponding mode displays on Display area of control panel in indoor unit in accordance of
signal given by remote control.
Display area of control panel in indoor unit.
11.2.2 Temperature adjusting button
Temperature adjusting range is between 16 ℃~30 ℃. Setting temperature displays on indoor unit
displays in indoor unit display area.
11.2.3 Room Temperature Button
Room temperature can be displayed on setting temperature display area for approximately 5
seconds when this button is pressed and hold for 5 seconds.
11.2.4 Fan speed button
There are 4 speed levels can be selected. Press FAN SPEED button on remote control to adjust
indoor fan speed. Fan speed selection displays corresponding level in accordance of the signal
sent by remote control.
QUIET OPERATION: To provide quiet environment comparing to normal operation by
reducing the air flow noise.
Press FAN SPEED button until QUIET MODE icon displayed on indoor display area to
enter QUIET MODE.
11.2.5 Air swing button (LEFT/RIGHT)
Press LEFT/RIGHT button on remote control to adjust horizontal airflow direction. Left/right air
louver status display on indoor display area as follows:-
22
11.2.6 Air swing button (UP/DOWN)
Press Up/Down button on remote control to adjust vertical airflow direction. Up/Down air louver
status display on indoor display area as follows:-
11.2.7 Powerful button
Enable the desired set temperature to be reached quickly.
Start POWERFUL operation: Press POWERFUL button and powerful icon displays on indoor
display area.
Switch Powerful operation to normal operation: Press the button again. Powerful icon goes
OFF to indentify POWERFUL mode OFF.
11.2.8 Timer setting button
There are 2 types of timer setting by pressing Timer setting button: ON-TIMER, OFF-TIMER.
1) OFF button
When the air conditioner is ON, OFF-TIMER can be selected by pressing OFF button.
2) ON button
When the air conditioner is turned off, ON-TIMER can be selected by pressing ON
button.
3) SET button
Pressing the button to set the set timer.
4) CANCEL button
Pressing the button to cancel the set timer. If the timer setting is cancelled, “ON” or
“OFF” will disappear on the indoor unit display.
NOTE:
OFF Timer can only be set during the operation;
Timer setting can operate only once.
If Auto Restart Control occurs, timer setting will be cancelled.
During the operation, if the ON Timer is set, the operation will be stopped.
12. Control Panel
12.1 CHILD LOCK
12.1.1 Child Lock Mode
The control is to prevent children from misoperating air-conditioner by touching the control panel
in indoor unit.
A. To activate Child lock mode
23
Either the air-conditioner is turned OFF or during operation, press and hold the “CHILD LOCK”
button for 5 seconds until “Beep” sound is heard, release your hand within 2 seconds. Child lock
mode is activated. A Green color key-icon displays on control panel display area.
B. To cancel child lock mode
Repeat above steps to cancel child lock. The LED key-icon displayed on control panel display
area goes off.
Notes:
When encounter a power failure, the child lock mode will be canceled.
Child lock mode is OFF as default setting.
Once the Child lock mode is activated, the unit does not response any signal sent by remote
control, and does not response any other touch of control buttons on indoor control panel.
When the unit is in cleaning mode, child lock mode can not be set or cancelled.
12.1.2 Cleaning Mode
The control is to fully open the air outlet vent during the unit is turned OFF to make it convenient
for cleaning and maintenance.
A. To activate cleaning mode
Turn off the unit, press and hold the CHILD LOCK button for approximately 7 seconds until two
Beeps sound is heard. Then release your hand in 2 seconds and following a Beep sound will be
heard. The LED key-icon on indoor display area lights up and OP appears on temperature display
position. Cleaning mode is activated with air outlet vent open, up/down vanes in horizontal
direction and left/right vanes in vertical direction.
B. To cancel cleaning mode
Repeat above steps to cancel child lock. The LED key-icon and OP display on control panel
display area go off. The air outlet vent will be closed when cleaning mode is cancelled.
Notes:
Cleaning mode is OFF as default setting.
Once the cleaning mode is activated, the unit does not response any signal sent by remote
control, and does not response any other press of control buttons on indoor control panel.
24
13. Operation Control
13.1 Basic Function
13.1.1 Internal Setting Temperature
Once the operation starts, remote control setting temperature will be taken as base value for
temperature shifting processes. These shifting processes are depending on the air conditioner
settings and the operation environment. The final shifted value will be used as internal setting
temperature and it is updated continuously whenever the electrical power is supplied to the unit.
Remote Control Setting Temperature(16℃~30℃)
Auto operation Mode Shifting
Setting Temperature Limit Checking (Min:16 ℃; Max.:30℃)
Outdoor Temperature Shifting
Powerful Shifting
Fan Speed Shifting
Dry Mode Shifting
Cooling/Heating Shifting
Setting Temperature Limit Checking( Min:16 ℃; Max.:33℃)
13.1.2 Cooling Operation
13.1.2.1 Thermostat control
• Compressor is OFF when Intake Air Temperature - Internal Setting Temperature < -1.5℃
• Compressor is ON after waiting for 3 minutes, if the Intake Air Temperature - Internal Setting
Temperature > Compressor OFF point +0.5K.
13.1.3 Soft Dry Operation
13.1.3.1 Thermostat control
• Compressor is OFF when Intake Air Temperature - Intake Setting Temperature < -2.5℃
25
• Compressor is ON after waiting for 3 minutes, if the Intake Air Temperature - Internal Setting
Temperature > Compressor OFF point +0.5K.
13.1.4 Heating operation
13.1.4.1 Thermostat control
• Compressor is OFF when Intake Air Temperature - Internal Setting Temperature > +2.0℃
• Compressor is ON after waiting for 3 minutes, if the Intake Air Temperature - Internal Setting
Temperature< Compressor OFF point -0.5K.
13.1.5 Automatic Operation
Once AUTO mode is selected, operation mode is determined by set temperature of remote
control, indoor intake temperature and outdoor temperature as shown in the table below.
26
The indoor intake air temperature T1, T2, T3 in above table is varied in accordance with
different setting temperatures as shown below:Remote Control
16 17 18 19 20 21 22 23 24 25 26 27 28 29 30
Setting Temp.
T1
26 27 28 27 28 29 30 30 31 32 33 33 34 35 36
T2
13 14 15 16 17 18 19 20 21 22 23 24 25 26 27
T3
11 12 13 12 13 14 15 16 17 18 19 19 20 21 22
However, when the operation mode is changed, for instance the determination is changed
from cooling to heating due to surrounding condition change, T1, T2, T3 value will have
correction data as follows:Cooling/Soft dry operation switched to Heating Operation: -2℃
Heating operation switched to Cooling/Soft dry Operation: +2℃
Note:
For the first judgment, when intake air temperature is lower than 16℃, the unit enters heating
operation.
The unit makes new judgment once per 30minutes after the first judgment.
After the second judgment, and if the unit is in deicing operation, the unit will be determined to
operate in heat mode for the following judgment.
If outdoor temperature is lower than 13℃ and the indoor temperature sensor is abnormal, the
unit enters heating operation.
During powerful operation, the unit does not make judgment.
13.2 Indoor Fan Motor Operation
A. Basic Rotation Speed
i.
Manual Fan speed
Fan motor’s number of rotation is determined according to remote control setting.
Remote control
Tab
COOLING(rpm)
HEATING(rpm)
Model
CS-E28NFQ
O
Hi
440
440
O
Me
380
380
O
Lo
320
320
ii.
Auto Fan Speed (Cooling, Soft Dry Mode)
The indoor fan operates according to pattern below.(cycle from a to h)
Fan speed
Higher
A
b
c
d
e
f
g
h
a
b
Medium
Lower
When outdoor temperature is lower than 35℃, Higher Fan speed is 380rpm, Medium
is 370rpm, Lower is 360rpm.
When outdoor temperature is higher than 35℃, Higher Fan speed is 410 rpm,
Medium is 400 rpm, Lower is 390 rpm.
Outdoor temperature data is updated every 30 seconds
iii.
Auto Fan Speed(Heating)
The indoor fan operates with the fan speed between 380 rpm and 420 rpm.
B. Feedback control
27
• Immediately after the fan motor started, feedback control is performed once every half a second.
• During fan motor on, if fan motor feedback is over 500rpm or < 50 rpm continue for 10 seconds,
then fan motor error counter increases, fan motor then stops and restarts. If the fan motor counter
becomes 7 times, then fan motor error F19 is detected. Operation stops and cannot on back.
13.3 Outdoor Fan Motor Operation
The outdoor Fan motor is high pressure PWM drive type. The fan motor circuit is composed with
U.V.W.X.Y.Z.PWM drive signal, position checking detector and over load current protection.
Basic rotation speed is as follows:Table 1
No.
1
2
3
4
5
rpm 150
190
230
270
310
6
7
8
9
A
B
C
D
E
F
350
390
430
550
580
600
620
650
690
720
Outdoor fan motor is operated in accordance with compressor running frequency.
Ⅰ.Cooling operation
Frequency
Hz≤17 17<Hz≤24 24<Hz≤60 60<Hz≤90
90<Hz
Rotation speed 580rpm
600rpm
620rpm
690rpm
720rpm
Ⅱ. Soft Dry operation
Frequency
Rotation speed
Hz≤17
550rpm
17<Hz
600rpm
Ⅲ. Heating
Frequency
Hz≤18 18<Hz≤39 29<Hz≤80
801<Hz≤116
116<Hz
Rotation speed 270rpm
550rpm
620rpm
690rpm
720rpm
*For the corresponding rotation speed (No.) in above tables, please refer to table 1 of outdoor fan
basic rotation speed.
When compressor stops, outdoor fan operates in speed of No.8 within 30 seconds.
During Timer sampling operation, outdoor fan speed is in No.9.
28
13.3.1 Vertical Airflow
Vertical airflow vanes are controlled by on step motor, Basic control angel is as below:-
Operation Status
Heating
Cooling
Soft Dry
AUTO
MANUAL
AUTO
MANUAL
AUTO
MANUAL
+10°
+15°
+15°
-20°, +10°
0°
+15°~ -15°
0°
0°
0°
-20°
-15°
-15°
13.3.2 Horizontal Airflow
There are two step motors controlling left and right vanes (4 pieces vanes on the left are
controlled by left side motor and the right 4 pieces vanes are control by the right side motor).
Adjustable range is from 45° to 90°.
Operation status
Heating
Cooling
Soft Dry
AUTO
MANUAL
AUTO
MANUAL
AUTO
MANUAL
45°
45°
45°
45°~90°
60°
75°
45°~90°
60°
75°
45°~90°
45°
45°
90°
90°
45°
13.3.3 Top Movable Panel
The top movable panel covers the indoor outlet vane when unit off. It is open and automatically
moved to top during operation. The stop position is depending on operation mode and controlled
by two motors and two position-limited switches.
Normal
Airflow
Cooling
0°
0°
Heating
-20°
-30°
13.3.4 Powerful operation
● To cooling or heating the room faster comparing to normal operation. The POWERFUL
operation can be active or stop by pressing POWERFUL button on remote control.
● When powerful operation is activated, the unit will continuously operate in POWERFUL mode
until cancel the mode by pressing POWERFUL button on remote control.
.
29
13.3.5 Automatic Restart Control
When the power supply is cut off during the operation of air conditioner, the compressor will reoperate within three to four minutes after power supply resumes.
13.3.6 Timer control
Delay ON Timer can be set using remote controller, the unit with timer set will start operate earlier
than the setting time. This is to provide a comfortable environment when reaching the set ON
time. Seventy minutes before the set time for ON Timer setting, indoor ( at fan speed of Lo-) fan
motor start operate for 30 seconds to determine the indoor intake air temperature and outdoor air
temperature in order to judge the operation mode. From the above judgment, the decided
operation will start operate earlier than the set time as shown below.
35
14. Protection control
14.1 Protection Control for All Operations
14.1.1 Time Delay Safety Control
● The Compressor will not turn on within 3 minutes from the moment operation stops, although
the unit is turned on again by pressing OFF/ON button at remote control within this period.
● This control is not applicable if the power supply is cut off and on again.
● This phenomenon is to balance the pressure inside the refrigerant cycle.
14.1.2 30 Seconds Forced Control
● Once the air conditioner is turned on, the compressor will not stop within 30 seconds in a
normal operation although the intake air temperature has reached the thermo-off temperature.
However, force stop by pressing the OFF/ON button at the remote control is permitted.
● The reason for the compressor to force operation for minimum 30 seconds is to allow the
refrigerant oil run in a full cycle and return back to the outdoor unit.
14.1.3 Total running current control
1. If the outdoor unit total running current is detected exceeding I1(A), the frequency instructed
for compressor operation will be decreased.
2. If the running current does not exceed I1(A) for 5 seconds, the frequency instructed will be
increased.
E28NFQ
Operation mode
I1(A)
Cooling/ Soft Dry /Fan A*
13.73
Cooling/ Soft Dry /Fan B
13.55
Cooling/ Soft Dry /Fan C
13.55
Heating
14.35
30
*The first 30 minutes of cooling operation, A will be applied.
14.1.4 IPM (Power transistor) Protection Control.
1. DC Peak Current Control
When electric current to IPM exceeds set value of 22.6A, the compressor will stop. It will
restart after 3 minutes.
If the set value is exceeded again within 30 seconds, the operation will restart after one
minute.
Within 30 minutes after compressor starts, if the peak current is over 22.6A for 7 times,
relays of indoor unit and outdoor unit will be open.
Error code [F99] will be displayed.
2.
Overheating protection control
When the IPM temperature rises to 120 ℃, compressor will stop immediately.
Compressor restarts after three minutes if the temperature decreases to 110℃
Error code [F96] will be displayed.
14.1.5 Compressor Overheat Protection
It is detected by compressor temperature sensor and discharge temperature. Compressor
frequency and expansion valve is controlled by compressor temperature sensor. If compressor
stop due to overheat for 4 times within 20 minutes, error code [97] will be displayed.
31
14.1.6 Low Operation Frequency Protection Control
When the compressor operation frequency is lower than 24Hz and continuing for 240
minutes, the operation frequency will be changed to 23Hz for 2 minutes. This is to
prevent the compressor running in too low frequency for long time.
If all following conditions are fulfilled, the compressor will run in the frequency of 30 Hz .
Models
E28NFQ
Intake Air Temp.
≥30 ℃ or <14 ℃
≥28 ℃ or <14 ℃
Outdoor Temp.
≥38 ℃ or <13 ℃
≥24 ℃ or <4 ℃
Indoor Piping Temp.
<30 ℃
≥0 ℃
Operation Mode
Cool / Dry
Heat
14.1.7 Low pressure Prevention control (Gas Leakage Detection)
a. Control start conditions
• For 5 minutes, the compressor continuously operates and outdoor total current is between
1.16A and 1.37A(in cooling mode and1.16A and 1.77A(in heating mode).
• During Cooling and Soft Dry operations:
Frequency is over 108Hz Max.
Indoor suction temperature - indoor piping temperature is below 4℃.
• During Heating operations:
Frequency is over 101Hz.
Indoor piping temperature - indoor suction is under 5℃.
b. Control contents
• Compressor stops (and restart after 3 minutes)
• If the conditions above happen 2 times within 20 minutes, the unit will:
- Stop operation
- Timer LED blinks and “F91” indicated
14.1.8 Refrigeration Circuit Abnormality
a. Control start conditions
• For 5 minutes, the compressor continuously operates and outdoor total current is between
0.94A and 1.37A.
• During Cooling and Soft Dry operation:
Frequency is over 105Hz.
Indoor suction temperature - indoor piping temperature is below 4℃.
Indoor temperature and outdoor temperature is 30±5℃.
Remote Control setting 16℃ and Hi Fan Speed.
• During Heating operation:
Frequency is over 101.
Indoor piping temperature - indoor suction is under 5℃.
Indoor temperature and outdoor temperature is 20 ± 2℃.
Remote control setting 30℃ and Hi Fan Speed
b. Control contents
• Compressor stops (and restart after 3 minutes)
• If the conditions above happen 2 times within 20 minutes, the unit will:
- Stop operation
- Timer LED blinks and “F91” indicated
32
14.2 Protection Control for Cooling and Soft Dry Operation
14.2.1 Outdoor Air Temperature Control
The compressor operating frequency is regulated in accordance to the outdoor air
temperature as shown in the diagram below.
Compressor frequency will adjust base on outdoor air temperature.
14.2.2 Freeze Prevention Control
1 .Frequency of the compressor
For prevention of freezing of the indoor evaporator, the frequency of the compressor will be
changed according to the indoor piping temperature.
2 .Indoor Fan Control
Indoor fan speed changes according to the indoor piping temperature. In up zone shown below,
the fan speed increases by +50r/min until the indoor piping temperature reaches
9℃(cooling)/5℃(dry) or above for 5 minutes. However, the control is unavailable within 4 minutes
after compress stars up.
14.2.3
1.
2.
3.
Dew Prevention Protection
Protection control starts when following conditions are fulfilled:Air conditioner is operated in Cooling or Soft Dry mode.
Air intake temperature is over 24℃.
Outdoor temperature is less than 34℃.
Protection control ends when any one of follow condition is achieved:33
1. Starting condition of protection is not fulfilled.
2. The control has operated for 420 minutes.
3. Change the temperature setting or fan speed setting.
14.2.4 Overload Protection for Cooling Operation
Frequency of the compressor will change according to the outdoor piping temperature.
14.3 Indoor Piping Air Temperature Control (Heating)
14.3.1 Indoor Fan Control
1. Indoor fan is controlled by the indoor piping temperature.
Manual Fan Speed
Piping Temperature(℃)
K0
K1
K2
K3
K4
K5
K6
K7
K8
K9
K10
16
19
24
32
32
36
36
39
54
54
57
Auto Fan Speed
2. During heating operation, the indoor fan will run at the following speed when the compressor
stops.
1
2
3
4
5
6
7
8
Comp.
ON
OFF
Indoor
Control by piping
220
200
220
200
220
200
Fan(rpm)
temp.
Time(Second)
20
100
10
100
20
100
ˉ
3. Hot Start
When the heating operation starts, the indoor fan stops and the compressor run with a certain
frequency.
Hot start ends when any of following condition achieves:● Indoor piping temperature reaches 19℃.
● Heating operation has run for over 4 minutes.
34
14.3.2 Overload Protection Control
Frequency of compressor is determined by indoor piping temperature.
35
15. Troubleshooting Guide
15.1 Refrigeration cycle system
In order to diagnose malfunctions, make sure that there
are no electrical problems before inspecting the
refrigeration cycle. Such problems include insufficient
insulation, problem with the power source, malfunction
of a compressor and a fan. The normal outlet air
temperature and pressure of the refrigeration cycle
depends on various conditions, the standard values for
them are shown in the table on the right.
Different in the intake
and outlet
air temperatures
Normal Pressure and Outlet Air Temperature (Standard)
Gas Pressure
Outlet air
Mpa
Temperature
2
(kg/cm G)
(°C)
Cooling Mode 0.9~1.2 ( 9~12)
12~16
Heating Mode 2.3 ~2.9 (23~29)
36~45
Condition: Indoor fan speed = High
Outdoor temperature = 35°C at cooling mode and 7° C at
heating mode.
Compressor operates at rated frequency
Normal
•
Measuring the air
temperature different
•
Measuring electric
current during
operation
More than 8°C
(15 minutes after an
operation is started) at
cooling mode. Above 14°C
(15 minutes after an
operation is started.) at
heating mode
Less than 8°C at the cooling mode
Less than 14°C at the heating mode
Value of electric
current during
operation
Higher than
specified
Dusty condenser preventing
heat radiation
Excessive amount
of refrigerant
Lower than
specified
Gas side
pressure
Cooling
Mode
High
Inefficient
compressor
Low
Insufficient refrigerant
Low
Heating
Mode Low
Clogged strainer or
capillary cube
Inefficient
compressor
Low
Insufficient refrigerant
Low
Clogged strainer or
capillary cube
36
•
Measuring gas side
pressure
15.2 Refrigeration cycle system
Code
H00
H11
H15
H16
H19
Abnormality/Protection
Normal
Indoor/Outdoor abnormal
communication
Outdoor compressor
temperature sensor abnormality
Outdoor Current Transformer
open
Indoor fan motor mechanism
lock
Judgment
Check
Emergency Operation
Over 1minute after
starting operation
Continue for 5 seconds
after compressor on for 5
minutes.
-
Connecting cable,
Indoor/Outdoor PCB
Compressor temperature
sensor defective or
disconnected.
Outdoor PCB, IPM
module
Indoor PCB, fan motor
O
Detect FB rotation data
abnormal for 7 times( if it
is normal for 25 seconds,
counter will be cleared)
Continue for 5 sec.
H27
Outdoor air temperature sensor
abnormality
H30
Discharge temperature sensor
abnormality
Continue for 5 sec.
heating mode
H33
Incorrect connection of
Indoor/Outdoor cable
Movable panel position-limiting
switch abnormality
Movable panel operation
abnormality
Outdoor fan motor lock
Indoor high pressure protection
-
H99
Indoor heat exchanger antifreezing protection
Indoor heat exchanger
freezing
F11
Cooling/heating cycle
changeover abnormality
Air swing position indicating
position abnormality
Indoor unit intake sensor
abnormality
4 times occurrence
within 30 minutes
Air swing initial position
not detected in 1 minute
Disconnect continuously
for 5 seconds; or short for
2 minutes after 20
minutes
Continue for 5 sec
H52
H55
H97
H98
F16
F20
F21
Continue for 5 sec.
20 sec. continuously for 3
times
Twice within 30 minutes
-
X
X
Outdoor temperature
sensor(defected or
disconnected)
Discharge temperature
sensor(defected or
disconnected)
Indoor/outdoor supply
voltage
Position-limiting SW
O
Position-limiting SW
X
Outdoor fan motor
Heat exchanger sensor;
Air filter dirty; Air
circulation short circuit
Heat exchanger sensor;
Air filter dirty; Insufficient
refrigerant.
4-way valve
V-coil
Air swing locked
X
X
X
X
X
X
X
X
Indoor unit intake sensor
or sensor connection,
x
Open or short
X
Continue for 5 sec
Open or short
X
Open circuit; Voltage and
temperature at PFC
Refrigerant leakage;
System blocked
Compressor
X
F90
Indoor heat exchanger sensor
abnormality
Outdoor (heat exchanger 1)
sensor abnormality
PFC control
F91
Refrigeration cycle abnormality
F93
Compressor abnormality
F95
High pressure protection in
cooling mode
4 times occurrence
within 10 minutes
2 times occurrence
within 20 minutes
4 times occurrence
within 20 minutes
4 times occurrence
within 20 minutes
F96
IPM overheating protection
-
F97
Outdoor compressor
overheating protection
4 times occurrence
within 10 minutes
F98
Total running current protection
3 times occurrence
within 20 minutes
F99
DC Peak Current Protection
Control
Continue for 7 times
F40
x
Outdoor pressure too
high; Heat exchanger
sensor
IPM overheating due to
excessive refrigerant,
improper heat radiation,
etc.
Insufficient refrigerant;
Compressor, Compressor
temp. sensor, discharge
temp. sensor.
Excess refrigerant
Improper radiation
37
Outdoor PCB
Compressor
X
X
X
X
X
X
X
16. Disassembly and Assembly Instructions
WARNING
High Voltage is generated in the electrical parts area by the capacitor. Ensure that the capacitor
has discharged sufficiently before proceeding with repair work. Failure to heed this caution may
result in electric shocks.
Removal Procedure for Intake Grille
Open the intake panel by holding left top and right top of it. (Fig.1)
Release the two clamps of both sides from special pieces. (Fig.2)
(Fig.1)
(Fig.2)
Removal Procedure for Discharge Grille
1. Put your hands against the removable panel, and push the panel upwards to remove it.
(Fig.3)
(Fig.3)
2. Release the 7 screws as shown in fig.4.
(Fig.4)
38
3. Loose two screw on button of right side decoration panel. (Fig.5)
Push the right side panel upwards to remove it. (Fig.6)
The same procedure to remove the decoration panel on left side.
(Fig.5)
(Fig.6)
4. Loose the screws fixing on the front panel from both sides. Put your hands against the
panel and push it upwards to remove it.(Fig.7)
(Fig.7)
5. Hold the vane on ends, slightly bend it. Carefully to drag it out from the fixing hole. (Fig.8)
(Fig.8)
6. Loose the three screws, disconnect the motor connecting wire, and hold the discharge
grille up to disassemble it from the unit. (Fig.9 ,Fig.10,Fig.11)
(Fig.9)
(Fig.10)
39
(Fig.11)
Removal Procedure of Display PCB
1. Remove the front panel. The display PCB casing can be seen fixing on the back of the
panel. Pull the three hooks carefully to take away the display PCB with casing. (Fig.12,
Fig.13)
(Fig.12)
(Fig.13)
2. Loose the 4 screws as shown in Fig.14, disconnect wires from the display PCB
connectors. And then the display PCB can be taken out from the casing. (Fig.14)
(Fig.14)
(Fig.15)
Removal procedure of Indoor Fan
After taking away the intake panel of indoor unit, turn the air discharge grille anticlockwise to
remove the grille (Fig.16). And then to disassemble the indoor fan as shown in fig.17.
(Fig.16)
(Fig.17)
40
17. Technical Data
17.1 Operation Characteristics
Cooling Characteristic at Different Outdoor Air Temperature
41
Cooling Characteristic at Different Piping Length
42
Heating Characteristic at Different Outdoor Air Temperature
43
Heating Characteristic at Different Piping Length
44
18. Exploded View and Replacement Pars List
18.1 Indoor Unit
45
46
47
48
NO.
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
Parts Name
REAR PLATE
SIDE PLATE (L)
SIDE PLAT (R)
CHASSIS ASS'Y
TOP PLATE
DECORATION SASH (L)
DECORATION SASH (R)
AIR FILTER
SPECIAL PIECE(L)
SPECIAL PIECE(R)
INTAKE GRILLE COMPLETE
DISCHARGE GRILLE COMPLETE
DISCHARGE GRILLE
A.S. MOTOR(VERTICAL
AIRFLOW)(DC,12V,150OHM)
VERTICAL AIRFLOW VANE(UPPER)
VERTICAL AIRFLOW VANE(M)
VERTICAL AIRFLOW VANE(LOWER)
A.S. MOTOR (L)(DC,12V,200OHM)
A.S. MOTOR (R )(DC,12V,200OHM)
HORIZONTAL VANE(L)
HORIZONTAL VANE(R)
MOVABLE PANEL COMPLETE
MOVABLE PANEL(INNER)
SPECIAL PIECE (R)
SCREW
SPECIAL PIECE (L)
MOVABLE PANEL(OUTER)
MOTOR-MOVABLE
PANEL(L)(DC,14V,90OHM)
MOTOR-MOVABLE
PANEL(R)(DC,14V,90OHM)
TRANSMISSION SHAFT
FIXING TOOL(L)
FIXING TOOL(R)
FOAM(BOTTOM)
FOAM(FRONT)
FIXING TOOL FOR DISCHARGE GEILL
EVAPORATOR
SPECIAL PIECE-EVAPORTOR(L)
SPECIAL PIECE-EVAPORTOR(R)
SENSOR
TUBE ASS'Y(LIQUID)
TUBE ASS'Y(GAS)
DRAIN PLATE
DRAIN PLATE
DRAIN HOSE
SPECIAL PIECE COMPLETE
FAN MOTOR(DC,280-340V,48W)
SPECIAL PIECE
FIXING TOOL FOR MOTOR
49
Qty.
1
1
1
1
1
1
1
1
1
1
1
1
1
CS-E28NFQ
CWE02K1014
CWE04C1217
CWE04C1219
CWE051062
CWE03C1089
CWE34C1043
CWE34C1044
CWD001321
CWD933148
CWD933149
CWE22C1700
CWE20C3189
CWE201216
1
CWA98C1061
1
1
1
1
1
4
4
1
1
1
6
1
1
CWE24C1380
CWE24C1381
CWE24C1382
CWA98C1063
CWA98C1062
CWE241366
CWE241367
CWE13C1115
CWE131042
CWD911955A
CWXTT4+8CFJ
CWD911954A
CWE13C1126
1
CWA98C1059
1
CWA98C1060
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
CWH631094
CWD933204
CWD933201
CWG071535
CWG071536
CWE121232
CWB303076
CWD911960
CWD911959
CWA50C2756
CWT028260
CWT027335
CWH401064
CWH40K1040
CWH851179
CWD90K1043
CWARW3202AC
CWD932809
CWD932940
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
INTAKE PASSAGE FOAM
FAN
PROTECTION GRILLE
CONTROL BOX COMPLETE
CONTROL BOARD CASING
TERMINAL BOARD
POWER SUPPLY CORD
MAIN PCB (POWER)
CONTROL BOX COMPLETE
CONTROL BOARD CASING
PCB(DISPLAY)
OPERATION BUTTONS
DECORATION PANEL
FRONT PANEL
OPERATING INSTRUCTIONS
INSTALLATION INSTRUCTIONS
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
(Note)
• All parts are supplied from PAPAGZ, China
50
CWD321094
CWH01K1024
CWD321095
CWH14C9456
CWH10K1139
CWA28K1185
CWA20C3082
CWA73C6454
CWH14C9455
CWD661213
CWA73C6453
CWE17C1038
CWE351287
CWE13C1111
CWF568489
CWF615281
18.2 Outdoor Unit
51
NO.
1
2
3
4
5
6
7
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9
10
11
12
13
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Parts Name
CHASSIS ASS'Y
CABINET SIDE PLATE (L)
COLOPHONY NET(L)
CABINET SIDE PLATE (R)
CABINET FRONT PLATE
OUTLET GRILLE
TOP PLATE
CONTROL BOX COMPLETE
TERMINAL COVER
TERMINAL BOARD ASS'Y
COMPRESSOR
ANTI-VIBRATION BUSHING
NUT-COMP.MOUNT
HOLDER-FAN MOTOR
FAN MOTOR(DC,280-340V,60W)
PROPELLER FAN
CONDENSER
HOLDER-COUPLING
SOUND PROOF PANEL
TUBE ASS'Y
2-WAY VALVE
EXPANSION VALVE
V-COIL-EXPANSION VALVE
TUBE ASS'Y
3-WAY VALVE
4-WAY VALVE
V-COIL COMPLETE
SENSOR
SENSOR(CN-TH)
NUT FOR TERMIANL COVER
SOUND PROOF BOARD
SOUND PROOF BOARD
SOUND PROOF BOARD
SOUND PROOF BOARD
REACTOR
STRAINER
MUFFLE
Qty.
1
1
1
1
1
1
1
1
1
1
1
3
3
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
CU-E28NFQ
CWD52K1254A
CWE041525A
CWD041150
CWE04C1211
CWE06C1353
CWE201212
CWE03C1087
CWH14C9457
CWH131238A
CWA28K1185
CWB092568
CWH50077
CWH56000J
CWD54K1058
CWEHD80AAC
CWH03K1041
CWB32C3126
CWH35K1050
CWH15K1030
CWT027670
CWB021530
CWB051030
CWA43C2435
CWT027315
CWB011643
CWB001077
CWA43C2420
CWA50C2563
CWA50C2792
CW7080300J
CWG302694
CWG302695
CWG302696
CWG302343
G0C402Z00004
CWB11094
CWB121031
REMARK
(Note)
• All parts are supplied from PAPAGZ, China.
Printed in China
52
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