Panasonic CS-C75KE User manual

1 Features 2
2 Functions 3
3 Product Specifications 6
4 Dimensions 12
5 Refrigeration Cycle Diagram 14
6 Block Diagram 15
7 Wiring Diagram 16
8 Operation Details 17
9 Operating Instructions 25
10 Installation Instructions 49
11 2-way, 3-way Valve 58
© 2000 Matsushita Air-Conditioning Corp. Sdn. Bhd.
(183914D) All rights reserved. Unauthorized copying
and distribution is a violation of law.
CS-C75KE CU-C75KE
CS-C95KE CU-C95KE
CS-C125KE CU-C125KE
12 Servicing Information 65
13 Troubleshooting Guide 69
14 Technical Data 71
15 Exploded View 74
16 Replacement Parts List 75
17 Exploded View 76
18 Replacement Parts List 77
19 Exploded View 78
20 Replacement Parts List 79
21 Electronic Parts List 80
22 Electronic Circuit Diagram 81
Room Air Conditioner
CONTENTS
Page Page
Order No: MAC0010048C2

• High Efficiency
• Compact Design
• Comfort Environment
− 8 hours of sleep mode operation
− Air filter with function to reduce dust and smoke
− Wider range of horizontal discharge air
• Auto Restart
− Random auto restart after power failure for safety restart
operation
• Removable and Washable Front Panel
• Remote Control Self-illuminating Button
• Catechin Air Purifying Filter
− Trap dust, tabacco smoke and tiny particles
− Prevent the growth of bacteria and viruses trapped
• Deodorizing Air Purifying Filter
− Remove unpleasant odors from the air
• Quality Improvement
− Gas leakage protection
− Prevent compressor reverse cycle
− 2-stage OLP to protect compressor
− Noise prevention during soft dry operation.
• Service Improvement
− Easy fan motor replacement procedure
• Operation Improvement
− Economy mode to reduce electrical power consumption
− Powerful mode to reach the desired room temperature
quickly
• Long Installation Piping
− CS/CU-C75KE, CS/CU-C95KE, long piping up to 10
meter
− CS/CU-C125KE, long piping up to 15 meter
1 Features
2
S-C75KE CU-C75KE / CS-C95KE CU-C95KE / CS-C125KE CU-C125KE

2 Functions
Remote Control
Operation OFF / ON
OFF / ON IRoom Temperature Setting
TEMP.
Operation Mode Selection
•AUTO Automatic Operation Mode
•COOL Cooling Operation Mode
•DRY Soft Dry Operation Mode
•FAN Air Circulation Mode
MODE
TIMER Time / Timer Setting
• Hours and minutes setting.
Clock Setting
• Current time setting.
Sleep Mode Operation OFF / ON
SLEEP
Indoor Fan Speed Selection
FAN SPEED
•h j k Low Speed
l
•h j k Medium Speed
lll
•h j k High Speed
lllll
•AUTOFAN Automatic Fan Speed
Airflow Direction Control
• 24-hour, OFF / ON Real Timer Setting.
ON-TIMER
OFF-TIMER Timer Operation Selection
SET
CANCEL Timer Operation Set / Cancel
• ON Timer and OFF Timer setting and
cancellation.
CLOCK
AIR SWING
•AUTO Automatic Airflow Direction
Control
•MANUAL Airflow Direction Manual
Control
Powerful Mode Operation OFF/ON
POWERFUL
Economy Mode Operation OFF/ON
ECONOMY
• Temperature Setting (16°C to 30°C)
• Automatic Operation
2°C higher than standard
Standard
2°C lower than standard
8 HI
a
a
a
9 Lo
Self illuminating
button
3
CS-C75KE CU-C75KE / CS-C95KE CU-C95KE / CS-C125KE CU-C125KE

Indoor Unit
Random Auto Restart Control
•Operation is restarted randomly after
power failure at previous setting mode.
Anti-Freezing Control
•Anti-Freezing control for indoor heat
exchanger. (Cooling and Soft Dry)
Sleep Mode Auto Control
•Indoor Fan operates at Low speed.
•Operation stops after 8 hours.
Indoor Fan Speed Control
•High, Medium and Low.
•Automatic Fan Speed Mode
–Cooling : Fan rotates at Hi and Me
speed. Deodorizing control
is available.
–Soft Dry: Fan rotates at Lo speed.
Deodorizing control
is available.
•Automatic air swing and manual adjusted
by remote control for vertical airflow.
•
Manually adjusted by hand for horizontal airflow.
Airflow Direction Control
Automatic Operation Button
•Press for < 5s to operate Automatic
operation mode.
(Used when the remote control cannot be used.)
•Press continuously for 5s or < 10s to
operate Test Run/Pump down. “Beep”
sound will be heard at the 5th second.
(Used when test running or servicing.)
•Press continuously for 10s and above to
omit or resume the remote control signal
receiving sound. “Beep, beep”sound will
be heard at the 10th second.
AUTO
OFF / ON
Operation Indication Lamps (LED)
•POWER (Green) ........ Lights up in operation,
blinks in Automatic
Operation Mode
judging.
•SLEEP (Orange)........ Lights up in Sleep
Mode Operation.
•TIMER (Orange) ....... Lights up in Timer
Setting.
•POWERFUL (Orange)..Lights up in Powerful
Mode Operation.
•ECONOMY (Green) .....Lights up in Economy
Mode Operation.
Operation Mode
•Cooling, Soft Dry, Air Circulation and
Automatic Mode.
Powerful Operation
•Reaches the desired room temperature
quickly.
Time Delay Safety Control
•Restarting is inhibited for appro. 3
minutes.
Starting Current Control
Economy Operation
•To reduce electrical power consumption.
7 Minutes Time Save Control
•Cooling Operation only.
4
S-C75KE CU-C75KE / CS-C95KE CU-C95KE / CS-C125KE CU-C125KE

Outdoor Unit
•To protect compressor from reverse
rotation when there is a instantaneous
power failure.
60 Secs. Forced Operation Control
•Once the compressor is activated, it
does not stop within the first 60 secs.
However, it stops immediately with
remote control stop signal.
Overload Protector
•2-Stage OLP to protect the compressor.
Overload Protector will trip when
–Temperature of compressor increases
to 120°C.
–High temperature or high current flows
to compressor.
(Refer circuit diagram for OLP
characteristic)
Compressor Reverse Rotation
Protection Control
Outdoor Fan Operation Control
•Inner protector.
CU-C75KE / CU-C95KE CU-C125KE
5
CS-C75KE CU-C75KE / CS-C95KE CU-C95KE / CS-C125KE CU-C125KE

3 Product Specifications
Unit CS-C75KE CU-C75KE
Cooling Capacity kW
kcal/h 2.05 - 2.00 1,760 - 1,810
Moisture Removal l/h
Pint/h 1.3 2.7
Power Source Phase
V
Cycle
Single
230 - 220
50
Airflow Method OUTLET
INTAKE
SIDE VIEW TOP VIEW
Air Volume Indoor Air (Lo) m3/min (cfm) 5.5 (200) - 5.3 (190) —
Indoor Air (Me) m3/min (cfm) 5.8 (210) - 5.5 (200) —
Indoor Air (Hi) m3/min (cfm) 7.0 (250) - 6.8 (240) —
Indoor Air (SHi) m3/min (cfm) 7.8 (280) - 7.7 (270) —
Noise Level dB (A) High 33 - 32, Low 26 - 26 High 46 - 45
Power level dB High 46 - 45 High 61 - 60
Electrical Data Input W600 - 550
Running Current A2.8 - 2.7
EER W/W (kcal/hw) 3.42 - 3.64 (2.93 - 3.13)
Starting Current A12
Piping Connection Port
(Flare piping) inch inch G ; Half Union 3/8” L ; Half Union 1/4”G ; 3-way valve 3/8” L ; 2-way valve 1/4”
Pipe Size
(Flare piping) inch inch G ; (gas side) 3/8” L ; (liquid side) 1/4”G ; (gas side) 3/8” L ; (liquid side) 1/4”
Drain
Hose Inner diameter mm 12 —
Length m0.7 —
Power Cord Length
Number of core-wire m2.0 3 (1.0 mm2)— —
Dimensions Height inch (mm) 10 - 31/32 (279) 18 - 29/32 (480)
Width inch (mm) 31 - 15/32 (799) 30 - 23/32 (780)
Depth inch (mm) 7 - 27/32 (199) 9 - 21/32 (245)
Net Weight lb (kg) 20 (9.0) 57 (26)
Compressor Type —Rotary (1 cylinder)
rolling piston type
Motor Type —Induction (2-poles)
Rated Output W—500
Air Circulation Type Cross-flow Fan Propeller Fan
Material AS + Glass Fiber 30% AES + Glass Fiber 16%
Motor Type Induction (4-poles) Induction (6-poles)
Input W26.6 48.9
Rate Output W10 20
Fan Speed Low rpm 835 - 810 —
Medium rpm 875 - 840 —
High rpm 1,055 - 1,030 730 - 670
SuperHigh rpm 1,175 - 1,160 —
6
S-C75KE CU-C75KE / CS-C95KE CU-C95KE / CS-C125KE CU-C125KE

Heat Exchanger Description Evaporator Condenser
Tube material Copper Copper
Fin material Aluminium (Pre Coat) Aluminium
Fin Type Slit Fin Louver Fin
Row / Stage (Plate fin configuration, forced draft)
2×14 1×18
FPI 21 17
Size (W × H × L) mm 614 × 294 × 25.4 856 × 457.2 × 22
Refrigerant Control Device —Capillary Tube
Refrigeration Oil (c.c) —SUNISO 4GDID or ATMOS M60
(260)
Refrigerant (R-22) g (oz) —645 (22.8)
Thermostat Electronic Control —
Protection Device —2 Stage Overload Protector
Capillary Tube Length mm —450
Flow Rate l/min —7.9
Inner Diameter mm —1.2
Air Filter Material
Style (c.c) P.P. Honeycomb —
Capacity Control Capillary Tube
Compressor Capacitor µF, VAC —20 µF, 370VAC
Fan Motor Capacitor µF, VAC 1.5 µF, 400VAC 1.2 µF, 400VAC
• Specifications are subject to change without notice for further improvement.
7
CS-C75KE CU-C75KE / CS-C95KE CU-C95KE / CS-C125KE CU-C125KE

Unit CS-C95KE CU-C95KE
Cooling Capacity kW
kcal/h 2.75 - 2.65 2,360 - 2,280
Moisture Removal l/h
Pint/h 1.6 3.4
Power Source Phase
V
Cycle
Single
230 - 220
50
Airflow Method OUTLET
INTAKE
SIDE VIEW TOP VIEW
Air Volume Indoor Air (Lo) m3/min (cfm) 6.6 (230) - 6.2 (220) —
Indoor Air (Me) m3/min (cfm) 7.2 (260) - 6.8 (240) —
Indoor Air (Hi) m3/min (cfm) 8.7 (310) - 8.4 (300) —
Indoor Air (SHi) m3/min (cfm) 8.5 (300) - 10.0 (350) —
Noise Level dB (A) High 36 - 35, Low 26 - 26 High 47 - 46
Power level dB High 49 - 48 High 62 - 61
Electrical Data Input W800 - 770
Running Current A3.5 - 3.6
EER W/W (kcal/hw) 3.44 - 3.44 (2.95 - 2.96)
Starting Current A16.4
Piping Connection Port
(Flare piping) inch inch G ; Half Union 3/8” L ; Half Union 1/4”G ; 3-way valve 3/8” L ; 2-way valve 1/4”
Pipe Size
(Flare piping) inch inch G ; (gas side) 3/8” L ; (liquid side) 1/4”G ; (gas side) 3/8” L ; (liquid side) 1/4”
Drain
Hose Inner diameter mm 12 —
Length m0.7 —
Power Cord Length
Number of core-wire m2.0 3 (1.0 mm2)— —
Dimensions Height inch (mm) 10 - 31/32 (279) 18 - 29/32 (480)
Width inch (mm) 31 - 15/32 (799) 30 - 23/32 (780)
Depth inch (mm) 7 - 27/32 (199) 9 - 21/32 (245)
Net Weight lb (kg) 20 (9.0) 64 (29.0)
Compressor Type —Rotary (1 cylinder)
rolling piston type
Motor Type —Induction (2-poles)
Rated Output W—700
Air Circulation Type Cross-flow Fan Propeller Fan
Material AS + Glass Fiber 30% AES + Glass Fiber 16%
Motor Type Induction (4-poles) Induction (6-poles)
Input W32.5 48.9
Rate Output W15 20
Fan Speed Low rpm 880 - 820 —
Medium rpm 960 - 900 —
High rpm 1,155 - 1,110 730 - 670
SuperHigh rpm 1,135 - 1,320 —
8
S-C75KE CU-C75KE / CS-C95KE CU-C95KE / CS-C125KE CU-C125KE

Heat Exchanger Description Evaporator Condenser
Tube material Copper Copper
Fin material Aluminium (Pre Coat) Aluminium
Fin Type Slit Fin Louver Fin
Row / Stage (Plate fin configuration, forced draft)
2×14 1×18
FPI 18 17
Size (W ×H×L) mm 614 ×294 ×25.4 856 ×457.2 ×22
Refrigerant Control Device —Capillary Tube
Refrigeration Oil (c.c) —SUNISO 4GDID or ATMOS M60
(320)
Refrigerant (R-22) g (oz) —760 (26.8)
Thermostat Electronic Control —
Protection Device —2 Stage Overload Protector
Capillary Tube Length mm —1,040
Flow Rate l/min —9.0
Inner Diameter mm —1.5
Air Filter Material
Style (c.c) P.P. Honeycomb —
Capacity Control Capillary Tube
Compressor Capacitor µF, VAC —30 µF, 370VAC
Fan Motor Capacitor µF, VAC 1.5 µF, 400VAC 1.2 µF, 400VAC
• Specifications are subject to change without notice for further improvement.
9
CS-C75KE CU-C75KE / CS-C95KE CU-C95KE / CS-C125KE CU-C125KE

Unit CS-C125KE CU-C125KE
Cooling Capacity kW
kcal/h 3.65 - 3.52 3,140 - 3,030
Moisture Removal l/h
Pint/h 2.1 4.4
Power Source Phase
V
Cycle
Single
230 - 220
50
Airflow Method OUTLET
INTAKE
SIDE VIEW TOP VIEW
Air Volume Indoor Air (Lo) m3/min (cfm) 6.4 (230) - 5.9 (210) —
Indoor Air (Me) m3/min (cfm) 8.0 (280) - 7.7 (270) —
Indoor Air (Hi) m3/min (cfm) 9.0 (320) - 8.8 (310) —
Indoor Air (SHi) m3/min (cfm) 9.8 (340) - 9.5 (330) —
Noise Level dB (A) High 39, Low 29 High 49 - 48
Power level dB High 52 High 64 - 63
Electrical Data Input kW 1.19 - 1.15
Running Current A5.3 - 5.4
EER WW (kcal/hw) 3.07 - 3.06 (2.64 - 2.63)
Starting Current A26.0
Piping Connection Port
(Flare piping) inch inch G ; Half Union 1/2” L ; Half Union 1/4”G ; 3-way valve 1/2” L ; 2-way valve 1/4”
Pipe Size
(Flare piping) inch inch G ; (gas side) 1/2” L ; (liquid side) 1/4”G ; (gas side) 1/2” L ; (liquid side) 1/4”
Drain
Hose Inner diameter mm 12 —
Length m0.7 —
Power Cord Length
Number of core-wire m2.0 3 (1.0 mm2)— —
Dimensions Height inch (mm) 10 - 31/32 (279) 21 - 1/4 (540)
Width inch (mm) 31 - 15/32 (799) 27 - 17/32 (699)
Depth inch (mm) 7 - 27/32 (199) 11 - 7/32 (285)
Net Weight lb (kg) 20 (9.0) 82 (37.0)
Compressor Type —Rotary (1 cylinder)
rolling piston type
Motor Type —Induction (2-poles)
Rated Output W—1,100
Air Circulation Type Cross-flow Fan Propeller Fan
Material AS + Glass Fiber 30% PP Resin
Motor Type Induction (4-poles) Induction (6-poles)
Input W33.3 60.7
Rate Output W15 25
Fan Speed Low rpm 890 - 835 —
Medium rpm 1,125 - 1,075 —
High rpm 1,260 - 1,235 970 - 760
SuperHigh rpm 1,340 - 1,330 —
10
S-C75KE CU-C75KE / CS-C95KE CU-C95KE / CS-C125KE CU-C125KE

Heat Exchanger Description Evaporator Condenser
Tube material Copper Copper
Fin material Aluminium (Pre Coat) Aluminium
Fin Type Slit Fin Louver Fin
Row / Stage (Plate fin configuration, forced draft)
2×14 1×20
FPI 21 18
Size (W ×H×L) mm 614 ×294 ×25.4 782.9 ×508 ×22
Refrigerant Control Device —Capillary Tube
Refrigeration Oil (c.c) —SUNISO 4GDID or ATMOS M60
(410)
Refrigerant (R-22) g (oz) —815 (28.8)
Thermostat Electronic Control —
Protection Device —2 Stage Overload Protector
Capillary Tube Length mm —535
Flow Rate l/min —17.0
Inner Diameter mm —1.7
Air Filter Material
Style (c.c) P.P. Honeycomb —
Capacity Control Capillary Tube
Compressor Capacitor µF, VAC —30 µF, 370VAC
Fan Motor Capacitor µF, VAC 1.5 µF, 400VAC 1.5 µF, 400VAC
• Specifications are subject to change without notice for further improvement.
11
CS-C75KE CU-C75KE / CS-C95KE CU-C95KE / CS-C125KE CU-C125KE

4 Dimensions
12
S-C75KE CU-C75KE / CS-C95KE CU-C95KE / CS-C125KE CU-C125KE

13
CS-C75KE CU-C75KE / CS-C95KE CU-C95KE / CS-C125KE CU-C125KE

5 Refrigeration Cycle Diagram
14
S-C75KE CU-C75KE / CS-C95KE CU-C95KE / CS-C125KE CU-C125KE

6 Block Diagram
15
CS-C75KE CU-C75KE / CS-C95KE CU-C95KE / CS-C125KE CU-C125KE

REMARKS
B: BLUE
BR : BROWN
BL : BLACK
W: WHITE
R: RED
O: ORANGE
P: PINK
Y/G : YELLOW/GREEN
Resistance of Indoor Fan Motor Windings
MODEL CS-C75KE CS-C95KE CS-C125KE
CONNECTION CWA921033 CWA921034 CWA921031
YELLOW-BLUE 536.5 Ω461.1 Ω457.4 Ω
YELLOW-BROWN 77.1 Ω94.6 Ω56.1 Ω
BROWN-ORANGE 43.9 Ω49.3 Ω61.2 Ω
ORANGE-WHITE 42.7 Ω19.7 Ω25.3 Ω
WHITE-RED 111.4 Ω115.3 Ω142.5 Ω
Resistance of Outdoor Fan Motor Windings
MODEL CU-C75KE CU-C95KE CU-C125KE
CONNECTION CWA951040 ←CWA951071
BLUE-YELLOW 363.7 Ω←258.0 Ω
YELLOW-RED 529.6 Ω←363.7 Ω
Resistance of Compressor Windings
MODEL CU-C75KE CU-C95KE CU-C125KE
CONNECTION 2RS110D5CA04 2PS146D5BA04 2KS224D5CA02
C-R 5.382 Ω3.941 Ω2.211 Ω
C-S 5.328 Ω3.499 Ω2.924 Ω
7 Wiring Diagram
16
S-C75KE CU-C75KE / CS-C95KE CU-C95KE / CS-C125KE CU-C125KE

Cooling in operation according to Remote Control setting.
Time Delay Safety Control (3 minutes)
7 minutes Time Saved Control
Starting Current Control
Anti-Freezing Control
• If the temperature of the indoor heat exchanger falls
continuously below 2°C for 4 minutes or more, the
compressor turns off to protect the indoor heat exchanger
from freezing. The fan speed setting remains the same.
• Compressor will restart again when the indoor heat
exchanger temperature rises to 10°C (Recovery).
3 minutes waiting of Time Delay Safety Control is valid for
Cooling Operation.
Compressor Reverse Rotation Protection Control
8 Operation Details
8.1. Cooling Mode Operation
• When the compressor is stopped by Remote Control, it restarts after 3 minutes when the Remote Control is turned ON.
• When the setting temperature is reached during cooling operation, the compressor stops and it will not start for 3 minutes.
• The compressor will start automatically if it has stopped for 7 minutes even if the room temperature is between the compressor
ON temperature and OFF temperature.
• When the compressor outdoor fan motor and indoor fan motor are simultaneously started, the indoor fan motor will operate 1.6
second later.
• If the compressor is operating continuously for 5 minutes or longer and the temperature difference between intake air and
indoor heat exchanger is 2.5°C or less for 2 minutes, compressor will stop and restart automatically.
(Time Delay Safety Control is valid)
sT = Intake air temperature - Indoor heat exchanger temperature
This is to protect reverse rotation of the compressor when there is a instantaneous power failure.
17
CS-C75KE CU-C75KE / CS-C95KE CU-C95KE / CS-C125KE CU-C125KE

Automatic Fan Speed Mode
Cooling Operation Time Diagram
When Automatic Fan Speed is selected at Remote Control during cooling operation.
• Fan speed rotates in the range of Hi to Me.
• Deodorizing Control.
18
S-C75KE CU-C75KE / CS-C95KE CU-C95KE / CS-C125KE CU-C125KE

Time Delay Safety Control
Starting Current Control
Anti-Freezing Control
Compressor Reverse Rotation Protection Control
Automatic Fan Speed Mode
8.2. Soft Dry Mode Operation
• The unit starts cooling operation until the room temperature reaches the setting temperature set on the Remote Control, and
then Soft Dry operation will start.
• During Soft Dry operation, the Indoor Fan will operate at low speed.
• The operation will be switched on and off for up to 10 minutes “ON”and 6 minutes “OFF”. Once Soft Dry operation is turned
off, it stops for 6 minutes.
• Once the compressor stops, it will not start for 3 minutes during Cooling operation.
• Same as Starting Current Control for Cooling Mode operation.
• Same as Anti-Freezing Control for Cooling Mode operation. (For Soft Dry region, 6 minutes waiting is valid during compressor
stops.)
• Same as Compressor Reverse Rotation Protection Control for Cooling Mode Operation. (For Soft Dry region, 6 minutes waiting
is valid during compressor stops.)
When Automatic Fan Speed is selected at Remote Control during Soft Dry operation.
• Fan speed off and on at Lo speed.
• Deodorizing Control.
19
CS-C75KE CU-C75KE / CS-C95KE CU-C95KE / CS-C125KE CU-C125KE

Soft Dry Operation Time Diagram
20
S-C75KE CU-C75KE / CS-C95KE CU-C95KE / CS-C125KE CU-C125KE