Panasonic CS-E7GKEW User manual

© 2007 Panasonic HA Air Conditioning (M) Sdn
Bhd (11969-T). All rights reserved. Unauthorized
copying and distribution is a violation of law.
Order No: MAC0704001A2
TABLE OF CONTENTS
1. Safety Precautions.........................................3
2. Specifications.................................................5
2.1 Indoor unit ....................................................5
2.2 Outdoor Unit .................................................6
3. Features ..........................................................7
4. Location of Controls and Components .......8
4.1 Indoor Unit....................................................8
4.2 Outdoor Unit .................................................9
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.
WARNING
In order to avoid frostbite, be assured of the refrigerant leakage during the installation or repairing of refrigeration circuit.
PRECAUTION OF LOW TEMPERATURE
Please file and use this manual together with the service manual for Model No. CU-2E18CBPG, CU-
3E23CBPG, CU- 4E27CBPG, Order No. RAC0209005C2, Model No. CU-3E18EBE, Order No.
RAC0503011C2 and Model No. CS-E9GFEW, CS-E12GFEW, CS-E18GFEW, Order No. RAC0704001C2.
INDOOR UNIT
CS-E7GKEW CS-E7GKDW
CS-E9GKEW CS-E9GKDW
CS-E12GKEW CS-E12GKDW
CS-E15GKEW CS-E15GKDW
CS-E18GKEW CS-E18GKDW
OUTDOOR UNIT
CU-2E15GBE
Simplified
Panasonic
Panasoni c
AUTO
HEAT
COOL
DRY
FAN
SPEED
AIR
SWING
e
-Ion
PATROL
OFF/ON
TEMP
MODE
FANSPEED
AIR
SWING
QUIET
TIMER
POWERFUL
ONSET
OFF
CANCEL
123
AC
SETCHECKCLOCKRESET
RC
Panasonic
INVERTER
AUTO
HEAT
COOL
DRY
FAN
SPEED
AIR
SWING
e
-Ion
PATROL
OFF/ON
TEMP
MODE
FANSPEED
AIR
SWING
QUIET
TIMER
POWERFUL
ONSET
OFF
CANCEL
123
AC
SETCHECKCLOCKRESET
RC
Panasonic
INVERTER

2
4.3 Remote Control ............................................9
5. Dimensions...................................................10
5.1 Indoor Unit & Remote Control ....................10
5.2 Outdoor Unit ...............................................12
6. Refrigeration Cycle Diagram.......................13
7. Block Diagram ..............................................14
8. Wiring Connection Diagram........................15
8.1 Indoor Unit ..................................................15
8.2 Outdoor Unit ...............................................17
9. Electronic Circuit Diagram..........................18
9.1 Indoor Unit ..................................................18
9.2 Outdoor Unit ...............................................20
10. Printed Circuit Board...................................21
10.1 Indoor Unit ..................................................21
10.2 Outdoor Unit ...............................................24
11. Installation Information ...............................25
11.1 Check Points ..............................................25
11.2 The Shapes of the 3-Way Valve Caps of the
Outdoor Unit Have Changed. .....................25
11.3 Piping Length..............................................26
12. Installation Instruction.................................27
12.1 Select the Best Location.............................27
12.2 Indoor Unit ..................................................28
12.3 Outdoor Unit ...............................................31
13. Operation Control ........................................34
13.1 Simultaneous Operation Control ............... 34
13.2 Basic function ............................................ 35
13.3 Protection Control for All Operations......... 48
14. Servicing Mode............................................ 52
14.1 Auto OFF/ON Button ................................. 52
14.2 Select Remote Control Transmission Code ...
................................................................... 53
14.3 Remote Control Button.............................. 53
15. Troubleshooting Guide............................... 54
15.1 Refrigeration cycle system ........................ 54
15.2 Breakdown self diagnosis function............ 55
16. Disassembly and Assembly Instructions. 58
16.1 Indoor Unit (CS-E7GKEW, CS-E9GKEW,
CS-E12GKEW, CS-E15GKEW, CS-E7GKDW,
CS-E9GKDW, CS-E12GKDW, CS-E15GKDW)....... 58
16.2 Indoor Unit (CS-E18GKEW, CS-E18GKDW) ...... 62
16.3 Outdoor Unit .............................................. 65
17. Technical Data............................................. 67
17.1 Operation Characteristics.......................... 67
18. Exploded View and Replacement Parts List .
...................................................................... 71
18.1 Indoor Unit (CS-E7GKEW, CS-E9GKEW,
CS-E12GKEW, CS-E15GKEW CS-E7GKDW,
CS-E9GKDW, CS-E12GKDW, CS-E15GKDW)....... 71
18.2 Indoor Unit (CS-E18GKEW, CS-E18GKDW) ...... 74
18.3 Outdoor Unit .............................................. 76

3
CAUTION
WARNING
WARNING
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.
This indication shows the possibility of causing death or serious injury
This indication shows the possibility of causing injury or damage to properties.
•The items to be followed are classified by the symbols:
•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.
1. Engage dealer or specialist for installation and servicing. If installation of servicing done by the user is defective, it will cause water leakage,
electrical shock or fire.
2. Install according to this installation instructions strictly. If installation is defective, it will cause water leakage, electric shock or fire.
3. Use the attached accessories parts and specified parts for installation and servicing. Otherwise, it will cause the set to fall, water properly
done, the set will drop and cause injury.
4. 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.
5. For electrical work, follow the local national wiring standard, regulation and the 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.
6. Use the specified cable and connect tightly for indoor/outdoor connection. Connect tightly and 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.
7. 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
heat-up or fire at the connection point of terminal, fire or electrical shock.
8. When connecting the piping, do not allow air or any substances other than the specified refrigerant to enter the refrigeration cycle.
Otherwise, this may lower the capacity, cause abnormally high pressure in the refrigeration cycle, and possibly result in explosion
and injury.
9. Thickness of copper pipes used must be more than 0.8 mm. Never use copper thinner than 0.8 mm.
10. It is desirable that the amount of residual oil is less than 40 mg/10m.
11. Do not modify the length of the power supply cord or use of the extension cord, and do not share the single outlet with other
electrical appliances. Otherwise, it will cause fire or electrical shock.
This indication shows the possibility of causing death or serious injury

4
CAUTION
1. The equipment must be earthed. It may cause electrical shock if grounding is not perfect.
2. 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.
3. Carry out drainage piping as mentioned in installation instructions. If drainage is not perfect, water may enter the room and damage the
furniture.
4. Pb free solder has a higher melting point than standard solder; typically the melting point is 50°F – 70°F (30°C – 40°C) higher. Please use
a high temperature solder iron. In case of the soldering iron with temperature control, please set it to 700 ± 20°F (370 ± 10°C).
Pb free solder will tend to splash when heated too high (about 1100°F / 600°C).
ATTENTION
1. Selection of the installation location. Select an installation location which is rigid and strong enough to support or hold the unit, and select a
location for easy maintenance.
2. Power supply connection to the air conditioner. Connect the power supply cord of the air conditioner to the mains using one of the following
methods.
Power supply point shall be the place where there is ease for access for the power disconnection in case of emergency. In some countries,
permanent connection of this room air conditioner to the power supply is prohibited.
i. Power supply connection to the receptacle using a power plug. Use an approved power plug with earth pin for the connection to the socket.
ii. Power supply connection to a circuit breaker for the permanent component. Use an approved circuit breaker for the permanent connection.
It must be a double pole switch with a minimum 3.5 mm contact gap.
3. Do not release refrigerant during piping work for installation, servicing, reinstallation and during repairing a refrigerant parts. Take care of
the liquid refrigerant, it may cause frostbite.
4. Installation work: It may need two people to carry out the installation work.
5. Do not install this appliance in a laundry room or other location where water may drip from the ceiling, etc.

5
2. Specifications
2.1 Indoor unit
Model CS-E7GKEW
CS-E7GKDW
CS-E9GKEW
CS-E9GKDW
CS-E12GKEW
CS-E12GKDW
CS-E15GKEW
CS-E15GKDW
CS-E18GKEW
CS-E18GKDW
Item Unit Wall Mounted
dB (A) Hi: 37
Lo: 24
Hi: 39
Lo: 25
Hi: 42
Lo: 28
Hi: 43
Lo: 32
Hi: 44
Lo: 37
Cooling
Power level
dB
48 50 53 54 57
dB (A) Hi: 38
Lo: 25
Hi: 40
Lo: 27
Hi: 42
Lo: 33
Hi: 43
Lo: 35
Hi: 44
Lo: 37
Noise Level
Heating
dB 49 51 53 54 57
l/h 1.3 1.6 2.0 2.4Moisture Removal
(pt/h) 2.7 3.4 4.2 5.1
Lo m3/m (ft3/m) C: 6.3 (220)
H: 6.5 (230)
C: 6.6 (230)
H: 7.1 (250)
C: 7.0 (250)
H: 8.5 (300)
C: 7.4(260)
H: 9.0 (320)
C: 12.3 (430)
H: 13.0 (460)
Me m3/m (ft3/m) C: 8.0 (280)
H: 8.4 (300)
C: 8.5 (300)
H: 9.1 (320)
C: 9.1 (320)
H: 10.1 (360)
C: 9.2 (330)
H: 10.8 (380)
C: 13.9 (490)
H: 14.6 (520)
Hi m3/m (ft3/m) C: 9.8 (350)
H: 10.3 (360)
C: 10.4 (370)
H: 11.0 (390)
C: 11.2 (400)
H: 11.7 (410)
C: 11.0 (390)
H: 11.8 (420)
C: 15.2 (540)
H: 16.7 (590)
Air Volume
SHi m3/m (ft3/m) C: 10.1 (360)
H: 10.7 (380)
C: 10.7 (380)
H: 11.4 (400)
C: 11.5 (410)
H: 12.1 (430)
C: 11.7 (410)
H: .11.5 (410)
-
Height mm (inch) 280 (11 – 1/32) 275 (10 – 13/16)
Width mm (inch) 799 (31 – 15/32) 998 (39 – 9/32)
Dimension
Depth mm (inch) 183 (7 – 7/32) 230 (9 – 1/16)
Net Weight kg (lbs) 9 (20) 10 (22)
Gas mm (inch) 9.52 (3/8) 12.7 (1/2)Pipe Diameter
Liquid mm (inch) 6.35 (1/4) 6.35 (1/4)
Inner diameter mm 16 12Drain Hose
Length mm 650 650
Type Cross-flow fan
Material ASG20K1
Motor Type Transistor (8-pole)
Input power W -
Fan
Output power 30
Fin material Aluminum (Pre Coat)
Fin type Slit Fin
Row x Stage x FPI 2 x 15 x 19 2 x 15 x 21 2 x 15 x 19
Heat Exchanger
Size (W x H x L) mm (inch) 610 x 315 x 25.4 810 x 315 x 25.4
Material PolypropeleneAir Filter Type
Style One-Touch
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
temperature 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 (80.6°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).
Item Unit
Power Source (Phase, Voltage, Cycle) Single
V 230
Hz 50

6
2.2 Outdoor Unit
Model Name CU-2E15GBE
Indoor Unit Combination 2.2kW + 2.2kW
Power Source 1 Phase, 230V, 50Hz (Power supply from outdoor unit)
Capacity kW 4.5 (1.50 – 5.0)
Running Current A 5.75
Power Input kW 1.230 (250 -1350)
Electrical
Data
EER W/W 3.66
Sound Pressure Level dB 47
Cooling Operation
Noise
Sound Power Level dB 62
Capacity kW 5.4 (1.1 – 7.0)
Running Current A 5.20
Power Input kW 1.170 (210 – 1670)
Electrical
Data
COP W/W 4.62
Sound Pressure Level dB 49
Heating Operation
Noise
Sound Power Level dB(A) 64
Maximum Current A 12.0
Starting Current A 5.75
Circuit Breaker Capacity A 15
Dimension Height mm 540
Width mm 780 (+70)
Depth mm 289
Net Weight kg 38
Connection Cable 3 + 1 (Earth) ø1.5 mm2
Pipe Length Range (1 room) m 3 – 20
Maximum Pipe Length (Total Room) m 30
Refrigerant Pipe Diameter Liquid Side mm 6.35
Gas Side mm 9.52
Compressor Type Scroll Type
Motor Type DC Brushless (4-poles)
Rated Output 1200
Air Circulation Type Propeller Fan
Motor Type DC Brushless (8-poles)
Rated Output 40
Fan Speed Low RPM 690
High RPM 860
Heat Exchanger Type Plate fin configuration forced draft type
Tube Material Copper
Fin Material Aluminum
Row/Stage 2/20
FPI 19
Air Volume High
Cooling
(Heating)
33.3 (28.5)
Refrigerant Control Device Expansion Valve
Refrigerant Oil POE (RB-68A)
Refrigerant (R410A) g 1450
Indoor unit combination Capacity Power Input (kW)
Outdoor Unit Operation Class (kW)
Operation
Mode Rating Min - Max Rating Min - Max Current (A)
Cooling 2.20 1.1 – 2.9 0.52 0.22 – 0.75 2.452.2
Heating 3.20 0.7 – 4.8 0.85 0.17 – 1.41 3.75
Cooling 2.80 1.1 – 3.5 0.75 0.22 – 1.00 3.502.8
Heating 4.00 0.7 – 5.5 1.15 0.17 – 1.70 5.10
Cooling 3.20 1.1 – 4.0 0.92 0.22 – 1.22 4.30
One-room
Operation
3.2
Heating 4.50 0.7 – 6.2 1.25 0.17 – 1.81 5.55
Cooling 4.50 1.5 – 5.0 1.23 0.25 – 1.35 5.752.2 + 2.2
Heating 5.40 1.1 – 7.0 1.17 0.21 – 1.67 5.20
Cooling 4.50 1.5 – 5.2 1.23 0.25 – 1.52 5.752.2 + 2.8
Heating 5.40 1.1 – 7.0 1.17 0.21 – 1.67 5.20
Cooling 4.50 1.5 – 5.2 1.25 0.25 – 1.53 5.80
CU-2E15GBE
Two-room
Operation
2.2 + 3.2
Heating 5.40 1.1 – 7.0 1.23 0.21 – 1.72 5.45

7
3. Features
•Product
oA single outdoor unit enables air conditioning of up to two separate rooms for CU-2E15GBE,
CU-2E18CBPG.
oA single outdoor unit enables air conditioning of up to three separate rooms for CU-3E18EBE,
CU-3E23CBPG.
oA single outdoor unit enables air conditioning of up to four separate rooms for CU-4E27CBPG
Outdoor Unit
CU-2E15GBE CU-2E18CBPG CU-3E18EBE CU-3E23CBPG CU-4E27CBPG
A B A B A B C A B C A B C D
2.2 kW CS-E7GKEW
CS-E7GKDW
●●●●●●●●●●●●●●
2.8 kW CS-E9GKEW
CS-E9GKDW
●●●●●●●●●●●●●●
3.2 kW CS-E12GKEW
CS-E12GKDW
●●●●●●●●●●●●●●
4.0 kW CS-E15GKEW
CS-E15GKDW
_ _ _ _ ●●●●●●●●●●
Wall
5.0 kW CS-E18GKEW
CS-E18GKDW
_ _ _ _ ●●●●●●●●●●
2.8 kW CS-ME10DD3EG ●●●●●●●●●●●●●●
4.0 kW CS-ME15DD3EG _ _ _ _ ●●●●●●●●●●
Duct
5.0 kW CS-ME18DD3EG _ _ _ _ ●●●●●●●●●●
2.8 kW CS-ME10DTEG _ _ ●●●●●●●●●●●●
4.0 kW CS-E15DTEW _ _ _ _ ●●●●●●●●●●
Ceiling
Floor
5.0 kW CS-E18DTEW _ _ _ _ ●●●●●●●●●●
4.0 kW CS-E15DB4EW _ _ _ _ ●●●●●●●●●●
Mini-
Cassette
5.0 kW CS-E18DB4EW _ _ _ _ ●●●●●●●●●●
2.2 kW CS-ME7EB1E ●●_ _ ●●●●●●●●●●
2.8 kW CS-ME10EB1E ●●_ _ ●●●●●●●●●●
3.2 kW CS-ME12EB1E _ _ _ _ ●●●●●●●●●●
Cassette
4.0 kW CS-ME14EB1E _ _ _ _ ●●●●●●●●●●
2.8 kW CS-E9GFEW ●●_ _ ●●●●●●●●●●
3.2 kW CS-E12GFEW _ _ _ _ ●●●●●●●●●●
Floor
Standing
5.0 kW CS-E18GFEW _ _ _ _ ●●●●●●●●●●
Capacity range of
connectable indoor units
From 4.4kW to 5.0kW From 4.4kW to 6.4kW From 5.0kW to 9.0kW From 5.0kW to 10kW From 5.0 to 13.6kW
1 room maximum
pipe length (m)
20 20 25 25 25
Allowable elevation
(m)
10 10 15 15 15
Total allowable pipe
length (m)
30 30 50 50 70
Total pip e length for
maximum chargeless
length (m)
20 20 30 30 40
Piping length
Additional gas
amount over
chargeless length (m)
20 20 20 20 20
Note: “●” : Available
Remarks for CU-2E15GBE / CU-2E18CBPG
1. At least two indoor units must be connected.
2. The total nominal cooling capacity of indoor units that will be connected to outdoor unit must be within connectable capacity range of indoor
unit. (as shown in the table above)
Example: The indoor units’ combination below is possible to connect to CU-2E15GBE. (Total nominal capacity of indoor units is between
4.4kW to 5.0kW)
1) Two CS-E7GKEW only. (Total nominal cooling capacity is 4.4kW)
2) One CS-E7GKEW and one CS-E9GKEW. (Total nominal cooling capacity is 5.0kW)
Remarks for CU-3E18EBE / CU-3E23CBPG / CU-4E27CBPG
1. At least two indoor units must be connected.
2. The total nominal cooling capacity of indoor units that will be connected to outdoor unit must be within connectable capacity range of indoor
unit. (as shown in the table above)
Example: The indoor units’ combination below is possible to connect to CU-3E23CBPG. (Total nominal capacity of indoor units is between
5.0kW to 10.0kW)
1) Two CS-E9GKEW only. (Total nominal cooling capacity is 5.6kW)
2) Three CS-E9GKEW. (Total nominal cooling capacity is 9.6kW)

8
4. Location of Controls and Components
4.1 Indoor Unit
4.1.1 CS-E7GKEW, CS-E9GKEW, CS-E12GKEW, CS-E15GKEW
CS-E7GKDW, CS-E9GKDW, CS-E12GKDW, CS-E15GKDW
4.1.2 CS-E18GKEW, CS-E18GKDW

9
4.2 Outdoor Unit
4.2.1 CU-2E15GBE
4.3 Remote Control
4.3.1 CS-E7GKEW, CS-E9GKEW, CS-E12GKEW, CS-E15GKEW
CS-E7GKDW, CS-E9GKDW, CS-E12GKDW, CS-E15GKDW
4.3.2 CS-E18GKEW, CS-E18GKDW

10
5. Dimensions
5.1 Indoor Unit & Remote Control
5.1.1 CS-E7GKEW, CS-E9GKEW, CS-E12GKEW, CS-E15GKEW
CS-E7GKDW, CS-E9GKDW, CS-E12GKDW, CS-E15GKDW

11
5.1.2 CS-E18GKEW, CS-E18GKDW

12
5.2 Outdoor Unit
5.2.1 CU-2E15GBE

13
6. Refrigeration Cycle Diagram
Type of pipe CZ-3F Type
Liquid side pipe Ø 6.35 mm (1/4“)
Gas side pipe Ø 9.52 mm (3/8”)
INDOOR
A
INDOOR B
Silence
r
3-wa
y
valve
3-wa
y
valve
3-wa
y
valve
Silence
r
Expansion
valve A
Expansion
valve B
Capillary
tube Silence
r
Dr
y
e
r
Capillar
y
tube
4-way
Valve
Heat Exchanger (Condenser)
Compresso
r
Heat Exchanger
(Evaporator)
Heat Exchanger
(Evaporator)
OUTDOOR
= senso
r

14
7. Block Diagram
COMP
FM
SC
FUSE 3.15A
RY-C
HOT
CTRY-AC
NOISE FILT ER
PTC3 PTC2
RY-PWR
REACTOR
RY-HOT
FUSE 20A
FUSE 5A
AC230V 50Hz
T
O INDOOR UN ITA
OUTDOOR UN IT
T
O INDOOR UN ITB
L N
１ ２ ３ １ ２ ３

15
8. Wiring Connection Diagram
8.1 Indoor Unit
8.1.1 CS-E7GKEW, CS-E9GKEW, CS-E12GKEW, CS-E15GKEW
CS-E7GKDW, CS-E9GKDW, CS-E12GKEW, CS-E15GKEW
4
5
6 7
1CN-FM
Remark: BLACK (BL) BLUE (B) BROWN (BR) GREEN (G) GRAY (GR) ORANGE (O)
PINK (P) RED(R) WHITE (W) YELLOW/GREEN (Y/G) YELLOW (Y)
FAN MOTOR
FM
EVAPORATOR
TO OUTDOOR UNIT
FERRITE CORE
Y/G
Y/G
GROUNDING
TERMINAL
COMPLETE
Y B W BL R
PC307
D304 R321
DB301
C315
R331R326 SW01 AUTO
SW
CN-STM1
STEPPING MOTOR
SENSOR 1 (PIPE TEMP.) SENSOR 1 (AIR TEMP.)
SENSOR 1 COMPLETE
ELECTRONIC CONTROLLER
CN-DISPLAY(YLW)
ELECTRONIC CONTROLLER (DISPLAY)
ELECTRONIC CONTROLLER DISPLAY) CN-DISP RECEIVER
WIRELESS REMOTE CONTROL
GAS SENSOR
CN-TH
CN-CLN
C309
LF301
ZNR301
CN-DATA1
(YLW)
CN-DATA1
C313 C314
FUSE01
T3.15A L250V
AC306 (BLK)
BL
TERMINAL BOARD COMPLETE
1 (L)
TO OUTDOOR UNIT
THERMAL FUSE
102°C (3A)
2 (N)
3
R W
G
AC304 (WHT)
G301 (GRN)
AC303 (WHT)
R320
R327
R308
PC302
R313
ZD302ZD301
R329R328D301
C317
R338
GENERATOR
COMPLTE
PC301
ELECTRONIC CONTROLLER
1
1
1 4
1 4
1BR
R O Y P
5
1 5
1
1
1
12
11
13
4
w w w w w w w w w w
10
12
BR RHV
GND
W
WIRE HOLDER
G BL BL
G
O Y P
W
W
W
W
W
W
W
W
W
W
W
W
W

16
8.1.2 CS-E18GKEW, CS-E18GKDW
4
5
6 7
1CN-FM
Remark: BLACK (BL) BLUE (B) BROWN (BR) GREEN (G) GRAY (GR) ORANGE (O)
PINK (P) RED(R) WHITE (W) YELLOW/GREEN (Y/G) YELLOW (Y)
FAN MOTOR
FM
EVAPORATOR
TO OUTDOOR UNIT
FERRITE CORE
Y/G
Y/G
GROUNDING
TERMINAL
COMPLETE
Y B W BL R
PC307
D304 R321
DB301
C315
R331R326
SW01 AUTO
SW
CN-STM1
STEPPING MOTOR
SENSOR 1 (PIPE TEMP.) SENSOR 1 (AIR TEMP.)
SENSOR 1 COMPLETE
ELECTRONIC CONTROLLER
CN-DISPLAY(YLW)
ELECTRONIC CONTROLLER (DISPLAY)
ELECTRONIC CONTROLLER DISPL AY)
CN-DISP RECEIVER
WIRELESS REMOTE CONTROL
GAS SENSOR
CN-TH
CN-CLN
C309
LF301
ZNR301
CN-DATA1
(YLW)
CN-DATA1
C313 C314
FUSE01
T3.15A L250V
AC306 (BLK)
BL
TERMINAL BOARD COMPLETE
1 (L)
TO OUTDOOR UNIT
THERMAL FUSE
102°C (3A)
2 (N)
3
R W
G
AC304 (WHT)
G301 (GRN)
AC303 (WHT)
R320
R327
R308
PC302
R313
ZD302ZD301
R329R328D301
C317
R338
GENERATOR
COMPLTE
PC301
ELECTRONIC CONTROLLER
1
1
1 4
1 4
1BR
R O Y P
5
1 5
1
1
13 1
13
4
w w w w w w w w w w
12
10
CN-STM2
STEPPING MOTOR
1BR
R O Y P
5
1 5
BR RHV
GND
W
WIRE HOLDER
G BL BL
G
O Y P
W
W
W
W
W
W
W
W
W
W
W
W
W

17
8.2 Outdoor Unit
8.2.1 CU-2E15GBE
FUSE T 3.15 A
L 250 V
W
Y
V B
R
Y
B
TRADE MARK
R
THE PARENTHESIZED LETTERS IS INDICATED ON TERMINAL COVER.
COMP. TERMINAL
REMARKS
B: BLUE BL: BLACK BR: BROWN G: GREEN R: RED WH: WHITE Y: YELLOW GR: GRAY OR: ORANGE
COMPRESSER
U
CN-FM1 (WHITE)
FAN MOTOR
45671
BL
WH
FM
B
Y
R
RY-C
LP
L
L
P
P
13
CN-DIS (WHITE)
ELECTRONIC CONTROL UNIT
13
CN-TH3 (YELLOW)
1324
CN-TH2 (YELLOW)
1324
CN-TH1 (WHITE)
1324561324
1 3 2 4
1 3 2 4
1 3 2 4
1 3 2 4WH
WH WH WH
WH WH WH WH
56
CN-EV2 (YELLOW)
CN-EV1 (WHITE)
(UNIT B)
COIL COMP.
(UNIT A)
COIL COMP.
230/50Hz
SINGLE PHASE TO INDOOR UNIT B.TO INDOOR UNIT A.
WHWH
BL
R
BL
WH
EXP.
VALVE
SENSOR
DIS. PIPE TEMP.
SENSOR
PIPE TEMP.
SENSOR
PIPE TEMP.
SENSOR
PIPE TEMP.
SENSOR
S. COND TEMP.
SENSOR
AIR TEMP.
PN
B
GR
BL
Y
R
OR
EXP.
VALVE
B
GR
BL
Y
R
OR
RY-HOT
BLBL
HOT 2
(BLACK) HOT1
(BLACK)
CT
RY - AC
RY - PWR PTC2 PTC3
GRY1
(GRAY)
FM1
(RED)
FG1
(GREEN)
CN - DC
(WHITE)
AC2
(BLACK)
AC1
(BLACK)
DATA2
(BROWN)
CONNECTOR
(WHITE)
BL BL
BL BL
CONNECTOR
(BLACK)
AC-BLK
(BLACK)
AC-WHT
(WHITE)
DATA1
(RED)
GRY2
(GRAY)
GR
REACTOR COIL COMP.
(4-WAY VALVE)
CONNECTOR
(YELLOW)
GR
R
G
G
TERMINAL
TERMINAL
TERMINAL
BR
BL
FUSE 20.0A
FUSE T 5.0A
L 250 V
BL
BL
Y / G
123123LN
ELECTRONIC CONTROL UNIT
FUSE T 3.15A
L 250 V
AC1 (BLACK) AC2 (BLACK) CN - DC (WHITE)
Resistance of compressor windings
CONNECTION CWHB090001
0.642 Ω 0.636 Ω 0.652 Ω
R - B R - Y B - Y

18
9. Electronic Circuit Diagram
9.1 Indoor Unit
9.1.1 CS-E7GKEW, CS-E9GKEW, CS-E12GKEW, CS-E15GKEW
CS-E7GKDW, CS-E9GKDW, CS-E12GKEW, CS-E15GKEW

19
9.1.2 CS-E18GKEW, CS-E18GKDW

20
9.2 Outdoor Unit
9.2.1 CU-2E15GBE
FUSE T 3.15 A
L 250 V
W
Y
V
B
R
COIL COIL
COMPRESSER
U
CN-FM1 (WHITE)
IC4
FAN MOTOR
45671
BL
WH
FM
B
Y
R
RY-C
Q1
PS21245-AT
Low Voltage
Power Supply
LP
L
L
P
P
13
CN-DIS (WHITE)
TEST
ELECTRONIC CONTROL UNIT
13
CN-TH3 (YELLOW)
13
2
4
CN-TH2 (YELLOW)
1324
CN-TH1 (WHITE)
COMMUNICATION
CIRCUIT
1324561324
1 3 2 4
12V
1 3 2 4
1 3 2 4
1 3 2 4WH
WH WH WH
WH WH WH WH
56
CN-EV2 (YELLOW)
CN-EV1 (WHITE)
(UNIT B)
COIL COMP.
(UNIT A)
COIL COMP.
230/50Hz
SINGLE PHASE
TO INDOOR UNIT B.TO INDOOR UNIT A.
WHWH
BL
R
BL
WH
COIL
COIL
EXP.
VALVE
SENSOR
DIS. PIPE TEMP.
SENSOR
PIPE TEMP.
SENSOR
PIPE TEMP.
SENSOR
PIPE TEMP.
SENSOR
S. COND TEMP.
SENSOR
AIR TEMP.
PN
GR
BL
Y
R
OR
EXP.
VALVE
GR
BL
Y
R
OR
RY-HOT
BLBL
HOT 2
(BLACK) HOT1
(BLACK)
CT
RY - AC
RY - PWR PTC2 PTC3
GRY1
(GRAY)
FM1
(RED)
FG1
(GREEN)
CN - DC
(WHITE)
AC2
(BLACK)
AC1
(BLACK)
DATA2
(BROWN)
CONNECTOR
(WHITE)
BL BL
BL BL
CONNECTOR
(BLACK)
AC-BLK
(BLACK)
AC-WHT
(WHITE)
DATA1
(RED)
GRY2
(GRAY)
GR
REACTOR COIL COMP.
(4-WAY VALVE)
CONNECTOR
(YELLOW)
GR
R
G
G
TERMINAL
TERMINAL
TERMINAL
BR
BL
FUSE 20.0A
FUSE T 5.0A
L 250 V
BL
BL
Y / G
123123LN
ELECTRONIC CONTROL UNIT
FUSE T 3.15A
L 250 V
AC1 (BLACK) AC2 (BLACK) CN - DC (WHITE)
12V 5V 5V
12V
12V 5V
5V
5V
120
115
110
105
100
95
90
85
80
75
70
65
60
55
50
45
40
35
30
25
20
15
10
5
0
RESISTANCE (kΩ)
TEMPERATURE (kΩ)
-10 0102030405060
1
3
24
1. Outdoor air temp.
2. Pipe temp. A, B
3. Heat exchanger temperature
4. Discharge temperature
CN-S
• The unit turn to the Rated Frequency Cooling Operation by short-circuiting
CN-S after applying power between the terminal 1 and 2.
• Operation of the compressor and the outdoor fan motor can be checked by
applying power short-circuiting CN-S.
Outdoor
Function
Time
First deice operation time
Deice operation starting time
Deice forced completion
Deice operation completion
Deice detection
Compressor forced operation time
Compressor operation frequency step up
Deice operation starting 3°C
60 min
45 sec
10 min 30 sec
59 sec
40 min
80 min
120 min
30 sec
60 sec
3 min
DC peak detection after compressor restart 3 min
6sec
4.5 sec
63 sec
5.9 sec
8 sec
16 sec
24 sec
0
0
1.8 sec
0