Panasonic CS-A75KE 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 33
10 Installation Instructions 57
11 2-way, 3-way Valve 66
© 2000 Matsushita Air-Conditioning Corp. Sdn. Bhd.
(183914D) All rights reserved. Unauthorized copying
and distribution is a violation of law.
CS-A75KE CU-A75KE
CS-A95KE CU-A95KE
CS-A125KE CU-A125KE
12 Servicing Information 73
13 Troubleshooting Guide 76
14 Technical Data 78
15 Exploded View 83
16 Replacement Parts List 84
17 Exploded View 85
18 Replacement Parts List 86
19 Exploded View 87
20 Replacement Parts List 88
21 Electronic Parts List 89
22 Electronic Circuit Diagram 90
Room Air Conditioner
CONTENTS
Page Page
Order No: MAC0010049C2

• High Efficiency
• Compact Design
• Comfort Environment
− 8 hours of sleep mode operation
− Air purifying filter with deodorizing function to reduce
dust, smoke and odours
• Random Auto Restart
− Auto restart at randomly after power failure
• Removable and Washable Front Panel
• Remote Control-Self Illuminating Button
• Catechin Air Purifying Filter
− To trap dust, tabacco smoke and tiny particles in the
room; to prevent the growth of bacteria and viruses
trapped in this filter
• Deodorizing Filter
• Quality Improvement
− Gas leakage protection
− Prevent compressor reverse rotation
− 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
− Anti cold draft control
• Long Installation Piping
− CS/CU-A75KE, CS/CU-A95KE, long piping up to 10
meter
− CS/CU-A125KE, long piping up to 15 meter
1 Features
2
S-A75KE CU-A75KE / CS-A95KE CU-A95KE / CS-A125KE CU-A125KE

2 Functions
Remote Control
Operation OFF / ON
OFF / ON IRoom Temperature Setting
TEMP.
Operation Mode Selection
•AUTO Automatic Operation Mode
•HEAT Heating Operation Mode
•COOL Cooling Operation Mode
•DRY Soft Dry Operation 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
Operation with 2°C higher than
standard temperature.
Operation with standard
temperature.
Operation with 2°C lower than
standard temperature.
8 HI
a
a
a
9 Lo
Self illuminating
button
3
CS-A75KE CU-A75KE / CS-A95KE CU-A95KE / CS-A125KE CU-A125KE

Indoor Unit
Sleep Mode Auto Control
•Indoor Fan operates at Low speed.
•Operation stops after 8 hours.
•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 continuosly 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 continuosly 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
•Heating, Cooling, Soft Dry 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.
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)
Anti Cold Draft Control
• The indoor fan operates at SSLo when the
indoor heat exchanger temperature is low.
Hot-Start Control
•At Heating Operation the indoor fan will
operate at Lo speed when indoor heat
exchanger temperature reaches 30°C.
Indoor Fan Speed Control
•High, Medium and Low.
•Automatic Fan Speed Mode
–Heating : Fan speed varies from ME
;Lo in accordance with
indoor heat exchanger.
–Cooling : Fan rotates at Hi and Me
speed. Deodorizing control
is available.
–Soft Dry: Fan rotates at Lo speed.
Deodorizing control
is available.
30 Minutes Time Save Control
•Heating Operation only.
4
S-A75KE CU-A75KE / CS-A95KE CU-A95KE / CS-A125KE CU-A125KE

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-A75KE / CU-A95KE CU-A125KE
4-Way Valve Control
•When the unit is switched to “OFF”
during Heating Operation, 4-way valve
stays at Heating position for 5 minutes.
Overload Protection Control
•Outdoor fan stops when indoor heat
exchanger temperature rises to 51°C
and above, and restarts when the indoor
heat exchanger temperature drops to
49°C and below.
•Compressor stop when indoor heat
exchanger temperature reaches 65°C or
above. (Heating Operation Only)
Outdoor Fan Motor Control
Deice Control
•To prevent frosting at outdoor heat
exchanger. (Only for Heating Operation)
•
Temperature of outdoor heat exchanger
is sensed by TRS (Thermal Reed Switch).
TRS OFF temperature 4°C.
TRS ON temperature -3°C.
Compressor Protection Control
•If the outdoor fan motor is not running
after compressor starts for 50 secs.,
compressor will stop. (Cooling and Soft
Dry Operation only).
5
CS-A75KE CU-A75KE / CS-A95KE CU-A95KE / CS-A125KE CU-A125KE

3 Product Specifications
Unit CS-A75KE CU-A75KE
Cooling Capacity kW
kcal/h 2.20 - 2.10 1,890 - 1,810
Heating Capacity kW
kcal/h 2.45 - 2.40 2,110 - 2,060
Moisture Removal l/h
Pint/h 1.4 3.0
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) Cooling; 5.9 (210) - 5.6 (200) —
Heating; 6.3 (220) - 6.1 (210)
Indoor Air (Me) m3/min (cfm) Cooling; 6.2 (220) - 6.0 (210) —
Heating; 7.6 (270) - 7.4 (260)
Indoor Air (Hi) m3/min (cfm) Cooling; 7.5 (260) - 7.2 (250) —
Heating; 8.5 (300) - 8.4 (300)
Indoor Air (SHi) m3/min (cfm) Cooling; 8.4 (300) - 8.2 (290) —
Heating; 8.5 (300) - 8.4 (300)
dB (A) Cooling; High 34-33, Low 26-26 Cooling; High 47 - 45
Heating; High 36-35, Low 26-26 Heating; High 49 - 47
Noise Level
Power level dB Cooling; High 47 - 46 Cooling; High 62 - 60
Heating; High 49 - 48 Heating; High 64 - 62
Electrical Data Input WCooling; 700 - 680
Heating; 640 - 600
Running Current ACooling; 3.6 - 3.5
Heating; 3.4 - 3.2
EER W/W (kcal/hw) Cooling; 3.14 - 3.09 (2.70 - 2.66)
COP W/W (kcal/hw) Heating; 3.83 - 4.00 (3.30 - 3.43)
Starting Current A15.5
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 —
6
S-A75KE CU-A75KE / CS-A95KE CU-A95KE / CS-A125KE CU-A125KE

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—600
Air Circulation Type Cross-flow Fan Propeller Fan
Material AS + Glass Fiber 30% AES + Glass Fiber 12%
Motor Type Induction (4-poles) Induction (6-poles)
Input W20.6 - 19.1 65.8 - 57.5
Rate Output W10 20
Fan Speed Low rpm Cooling; 820 - 780 —
Heating; 855 - 825
Medium rpm Cooling; 855 - 825 —
Heating; 1,040 - 1,005
High rpm Cooling; 1,040 - 1,005 —
Heating; 1,160 - 1,140
SuperHigh rpm Cooling; 1,160 - 1,140 —
Heating; 1,160 - 1,140
Heat Exchanger Description Evaporator Condenser
Tube material Copper Copper
Fin material Aluminium (Pre Coat) Aluminium (Pre Coat)
Fin Type Slit Fin Louver Fin
Row / Stage (Plate fin configuration, forced draft)
2×14 1×18
FPI 18 19
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
(290)
Refrigerant (R-22) g (oz) —815 (28.8)
Thermostat Electronic Control —
Protection Device —Overload Protector
Capillary Tube Length mm —Cooling; 850, Heating; 360
Flow Rate l/min —Cooling; 4.5, Heating; 10.5
Inner Diameter mm —Cooling; 1.1, Heating; 1.3
Air Filter Material
Style (c.c) P.P. Honeycomb —
Capacity Control Capillary Tube
Compressor Capacitor µF, VAC —15 µF, 440VAC
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-A75KE CU-A75KE / CS-A95KE CU-A95KE / CS-A125KE CU-A125KE

Unit CS-A95KE CU-A95KE
Cooling Capacity kW
kcal/h 2.80 - 2.70 2,410 - 2,320
Heating Capacity kW
kcal/h 3.40 - 3.30 2,920 - 2,840
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) Cooling; 6.4 (230) - 5.9 (210) —
Heating; 6.4 (230) - 5.9 (210)
Indoor Air (Me) m3/min (cfm) Cooling; 7.5 (265) - 7.1 (250) —
Heating; 7.6 (270) - 7.1 (250)
Indoor Air (Hi) m3/min (cfm) Cooling; 9.2 (320) - 8.9 (310) —
Heating; 9.8 (350) - 9.7 (340)
Indoor Air (SHi) m3/min (cfm) Cooling; 9.8 (350) - 9.6 (340) —
Heating; 9.8 (350) - 9.7 (340)
dB (A) Cooling; High 39-38, Low 26-26 Cooling; High 49 - 48
Heating; High 39-39, Low 26-26 Heating; High 49 - 47
Noise Level
Power level (dB) Cooling; High 52 - 51 Cooling; High 64 - 63
Heating; High 52 - 52 Heating; High 64 - 62
Electrical Data Input WCooling; 980 - 950
Heating; 885 - 870
Running Current ACooling; 4.6 - 4.6
Heating; 4.2 - 4.2
EER W/W (kcal/hw) Cooling; 2.86 - 2.84 (2.46 - 2.44)
COP W/W (kcal/hw) Heating; 3.84 - 3.79 (3.30 - 3.26)
Starting Current A22.0
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)— —
8
S-A75KE CU-A75KE / CS-A95KE CU-A95KE / CS-A125KE CU-A125KE

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) 71 (32.0)
Compressor Type —Rotary (1 cylinder)
rolling piston type
Motor Type —Induction (2-poles)
Rated Output W—800
Air Circulation Type Cross-flow Fan Propeller Fan
Material AS + Glass Fiber 30% AES + Glass Fiber 12%
Motor Type Induction (4-poles) Induction (6-poles)
Input W32.2 - 34.5 65.8 - 57.5
Rate Output W14 20
Fan Speed Low rpm Cooling; 875 - 800 —
Heating; 875 - 800
Medium rpm Cooling; 1,025 - 965 —
Heating; 1,025 - 965
High rpm Cooling; 1,250 - 1,210 —
Heating; 1,330 - 1,310
SuperHigh rpm Cooling; 1,330 - 1,310 —
Heating; 1,330 - 1,310
Heat Exchanger Description Evaporator Condenser
Tube material Copper Copper
Fin material Aluminium (Pre Coat) Aluminium (Pre Coat)
Fin Type Slit Fin Louver Fin
Row / Stage (Plate fin configuration, forced draft)
2×14 1×18
FPI 18 19
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
(350)
Refrigerant (R-22) g (oz) —935 (33.0)
Thermostat Electronic Control —
Protection Device —Overload Protector
Capillary Tube Length mm —Cooling; 1,075, Heating; 325
Flow Rate l/min —Cooling; 5.2, Heating; 13.4
Inner Diameter mm —Cooling; 1.2, Heating; 1.4
Air Filter Material
Style (c.c) P.P. Honeycomb —
Capacity Control Capillary Tube
Compressor Capacitor µF, VAC —25 µF, 370VAC
Fan Motor Capacitor µF, VAC 1.0 µF, 400VAC 1.2 µF, 400VAC
• Specifications are subject to change without notice for further improvement.
9
CS-A75KE CU-A75KE / CS-A95KE CU-A95KE / CS-A125KE CU-A125KE

Unit CS-A125KE CU-A125KE
Cooling Capacity kW
kcal/h 3.55 - 3.40 3,050 - 2,920
Heating Capacity kW
kcal/h 4.20 - 4.05 3,610 - 3,480
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) Cooling; 6.4 (230) - 6.0 (210) —
Heating; 6.4 (230) - 6.0 (210)
Indoor Air (Me) m3/min (cfm) Cooling; 8.0 (280) - 7.7 (270) —
Heating; 8.0 (280) - 7.7 (270)
Indoor Air (Hi) m3/min (cfm) Cooling; 9.0 (320) - 8.8 (310) —
Heating; 9.6 (340) - 9.5 (340)
Indoor Air (SHi) m3/min (cfm) Cooling; 9.6 (340) - 9.5 (340) —
Heating; 9.6 (340) - 9.5 (340)
dB (A) Cooling; High 39-39, Low 29-29 Cooling; High 49 - 48
Heating; High 39-39, Low 29-29 Heating; High 49 - 48
Noise Level
Power level (dB) Cooling; High 52 - 52 Cooling; High 64 - 63
Heating; High 52 - 52 Heating; High 64 - 63
Electrical Data Input kW Cooling; 1.24 - 1.20
Heating; 1.17 - 1.13
Running Current ACooling; 5.6 - 5.6
Heating; 5.2 - 5.2
EER W/W (kcal/hw) Cooling; 2.86 - 2.83 (2.46 - 2.43)
COP W/W (kcal/hw) Heating; 3.59 - 3.58 (3.09 - 3.08)
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)— —
10
S-A75KE CU-A75KE / CS-A95KE CU-A95KE / CS-A125KE CU-A125KE

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) 86 (39.0)
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 - 31.0 71.0 - 67.0
Rate Output W15 25
Fan Speed Low rpm Cooling; 890 - 835 —
Heating; 890 - 835
Medium rpm Cooling; 1,125 - 1,075 —
Heating; 1,125 - 1,075
High rpm Cooling; 1,260 - 1,235 —
Heating; 1,340 - 1,330
SuperHigh rpm Cooling; 1,340 - 1,330 —
Heating; 1,340 - 1,330
Heat Exchanger Description Evaporator Condenser
Tube material Copper Copper
Fin material Aluminium (Pre Coat) Aluminium (Pre Coat)
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) —990 (34.9)
Thermostat Electronic Control —
Protection Device —Overload Protector
Capillary Tube Length mm —Cooling; 1,100, Heating; 470
Flow Rate l/min —Cooling; 6.0, Heating; 13.4
Inner Diameter mm —Cooling; 1.3, Heating; 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 1.5 µF, 400VAC
• Specifications are subject to change without notice for further improvement.
11
CS-A75KE CU-A75KE / CS-A95KE CU-A95KE / CS-A125KE CU-A125KE

4 Dimensions
12
S-A75KE CU-A75KE / CS-A95KE CU-A95KE / CS-A125KE CU-A125KE

13
CS-A75KE CU-A75KE / CS-A95KE CU-A95KE / CS-A125KE CU-A125KE

5 Refrigeration Cycle Diagram
14
S-A75KE CU-A75KE / CS-A95KE CU-A95KE / CS-A125KE CU-A125KE

6 Block Diagram
15
CS-A75KE CU-A75KE / CS-A95KE CU-A95KE / CS-A125KE CU-A125KE

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-A75KE CS-A95KE CS-A125KE
CONNECTION CWA921033 CWA921032 CWA921031
YELLOW-BLUE 707.1 Ω451.2 Ω450.7 Ω
YELLOW-BROWN 71.1 Ω86.7 Ω68.2 Ω
BROWN-ORANGE 64.7 Ω98.4 Ω56.7 Ω
ORANGE-WHITE 15.7 Ω51.5 Ω56.9 Ω
WHITE-RED 116.2 Ω240.8 Ω102.0 Ω
Resistance of Outdoor Fan Motor Windings
MODEL CU-A75KE CU-A95KE CU-A125KE
CONNECTION CWA95245 ←CWA95381
BLUE-YELLOW 260.5 Ω←174.5 Ω
YELLOW-RED 446.0 Ω←331.0 Ω
Resistance of Compressor Windings
MODEL CU-A75KE CU-A95KE CU-A125KE
CONNECTION 2RS127D3CA04 2PS174D3AA02 2KS224D5CA02
C-R 4.023 Ω2.796 Ω2.211 Ω
C-S 8.803 Ω5.432 Ω2.924 Ω
7 Wiring Diagram
16
S-A75KE CU-A75KE / CS-A95KE CU-A95KE / CS-A125KE CU-A125KE

Cooling in operation according to Remote Control setting.
Time Delay Safety Control (3 minutes)
7 minutes Time Save 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 it is turned ON by Remote Control.
• 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 & 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-A75KE CU-A75KE / CS-A95KE CU-A95KE / CS-A125KE CU-A125KE

Compressor Protection Control
Automatic Fan Speed Mode
• After the compressor starts for 50 seconds but the outdoor fan motor is still OFF, the compressor will stop and restart
automatically. (Time Delay Safety Control is valid).
• If the above phenomenon is repeated for 3 times, the compressor will stops.
• The above phenomenon is reset when there is a change to heating mode or stopped by Remote Control Switch.
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-A75KE CU-A75KE / CS-A95KE CU-A95KE / CS-A125KE CU-A125KE

Cooling Operation Time Diagram
19
CS-A75KE CU-A75KE / CS-A95KE CU-A95KE / CS-A125KE CU-A125KE

Time Delay Safety Control
Starting Current Control
Anti-Freezing Control
Compressor Reverse Rotation Protection Control
Compressor 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.)
• Same as Compressor Protection Control for Cooling Mode Operation.
When Automatic Fan Speed is selected at Remote Control during Soft Dry operation.
• Fan speed off and on at Lo speed.
• Deodorizing Control.
20
S-A75KE CU-A75KE / CS-A95KE CU-A95KE / CS-A125KE CU-A125KE