Panasonic CS-C73KE User manual

ServiceManual
Room Air Conditioners
Contents
●Features ..........................................................1
●Functions ...................................................2 – 4
●Product Specifications .............................5 – 10
●Dimensions............................................11 – 12
●Refrigeration Cycle Diagram .........................13
●Block Diagram ...............................................14
●Wiring Diagram..............................................15
●Operation Details...................................16 – 23
●Installation Information ..........................24 – 25
●2-way, 3-way Valves..............................26 – 32
●Servicing Information.............................33 – 36
●Troubleshooting Guide ..........................37 – 38
●Technical Data.......................................39 – 40
●Exploded View...................................41, 43, 45
●Replacement Parts List .....................42, 44, 46
●Electronic Parts List.......................................47
CS-C73KE / CU-C73KE
CS-C93KE / CU-C93KE
CS-C123KE / CU-C123KE
ORDER NO. MAC9810034C2
 1998 Matsushita Air-Conditioning Corp. Sdn. Bhd.
(183914D)
All rights reserved. Unauthorized copying and distribu-
tion is a violation of law.
Untitled-2 6/28/00, 5:22 PM1

– 1 –
MAC9512086C2
CS-C73KE
• High Efficiency
• Compact Design
• Comfort Enviroment
– 8 hours of sleep mode operation
– Air purifying filter with deodorizing function
to reduce dust, smoke and odours.
• Auto Restart
– Autorestartatrandomoperationafterpower
failure
• Removable and Washable
Front Panel
• Quality Improvement
– Gas leakage protection
– Prevent compressor reverse cycle
– 2-stage OLP to protect compressor
• Service Improvement
– Easy fan motor replacement procedure
• Operation Improvement
– Economy mode to reduce electrical power
consumption.
– Powerful mode to reaches the desired room
temperature quickly.
• Long Installation Piping
– CS/CU–C73KE,CS/CU–C93KE,long pipingupto10
meter.
– CS/CU–C123KE, long piping up to 15 meter.
Features
PRECAUTION OF LOW TEMPERATURE
In order to avoid frostbite, be assured of no refrigerant leakage during the installation or repairing of refrigeration circuit.
!!
!!
!
WARNING
Thisserviceinformationisdesignedfor experienced repairtechnicians onlyand isnot designedfor useby thegeneral public.Itdoesnotcontain
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 product or products dealt with
in this service information by anyone else could result in serious injury or death.
!!
!!
!
Untitled-1 6/29/00, 7:37 AM1

– 2 –
MAC9512086C2
CS-C73KE
Remote Control
Functions
Operation OFF / ON
OFF / ON IRoom Temperature Setting TEMP.
• Temperature Setting (16°C to 30°C)
• Automatic Operation
2°C higher than standard
Standard
2°C lower than standard
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
•AUTO Automatic Airflow Direction
Control
•MANUAL Airflow Direction Manual Control
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.
AIR SWING
Powerful Mode Operation OFF/ON
POWERFUL
Economy Mode Operation OFF/ON
ECONOMY
8 HI
a
a
a
9 Lo
CLOCK
Untitled-1 6/29/00, 7:37 AM2

– 3 –
MAC9512086C2
CS-C73KE
Indoor Unit
Functions
Power Switch OFF / ON
POWER I
Auto Operation Button
• Used when the remote control cannot be
used.
Remote Control Signal Receiving
Sound
• It can be controlled by pressing Auto
Operation Button for 10 seconds.
AUTO
OFF / ON
Operation Test Running / Pump
Down Switch
TEST RUN
OFF / ON
Operation Indication Lamps (LED)
•POWER (Red)...... 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
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)
• Used when test running or servicing.
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 SLo and Lo
speed. Deodorizing control is
available.
Airflow Direction Control
• Automatic air swing and manual adjusted
by remote control for vertical airflow.
• Manually adjusted by hand for horizontal
airflow.
Operation Mode
• Cooling, Soft Dry, Air Circulation and
Automatic Mode.
Time Delay Safety Control
• Restarting is inhibited for appro. 3 minutes.
7 Minutes Time Save Control
• Cooling Operation only.
Starting Current Control
Powerful Operation
• Reaches the desired room temperature
quickly.
Economy Operation
• To reduce electrical power consumption.
Untitled-1 6/29/00, 7:37 AM3

– 4 –
MAC9512086C2
CS-C73KE
Compressor Reverse Rotation
Protection Control
Outdoor Unit
Functions
• To protect compressor from reverse
rotation when there is a instantaneous
power failure.
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)
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.
Outdoor Fan Operation Control
• Inner protector.
CU-C123KE
CU-C73KE, CU-C93KE
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– 5 –
MAC9512086C2
CS-C73KE
Product Specifications
Inner diameter
Length
Input
Running Current
COP
Starting Current
Cooling Capacity
Moisture Removal
Power Source
Airflow Method
Air Volume
Noise Level
Electrical
Data
Piping Connection Port
(Flare piping)
Pipe Size
(Flare piping)
Drain
Hose
Power Cord Length
Number of core-wire
Dimensions
Net Weight
Compressor
Air Circulation
Height
Width
Depth
Type
Motor Type
Rated Output
Type
Material
Motor Type
Input
Rated Output
Fan Low
Speed Medium
High
Unit
kW
Btu/h
s/h
Pint/h
Phase
V
Cycle
OUTLET
INTAKE
m3/min (cfm)
m3/min (cfm)
m3/min (cfm)
m3/min (cfm)
dB (A)
W
A
W/W
A
inch
inch
inch
inch
mm
m
m
inch (mm)
inch (mm)
inch (mm)
lb (kg)
W
W
W
rpm
rpm
rpm
Indoor Air (Lo)
Indoor Air (Me)
Indoor Air (Hi)
Outdoor Air
2.05 - 2.00
7,000 - 6,830
1.3
2.7
Single
230 - 220
50
600 - 550
2.8 - 2.7
3.42 - 3.64
12
CS-C73KE
SIDE VIEW
5.5 (190)
6.3 (220)
7.0 (250)
–
High 33 - 32, Low 28 - 26
G ; Half Union 3/8"
L ; Half Union 1/4"
G (gas side) ; 3/8"
L (liquid side) ; 1/4"
12
0.7
2.0
3 (1.0 mm2)
10-31/32 (279)
31-15/32 (799)
7-15/32 (190)
20 (9.0)
–
–
–
Cross-flow Fan
AS + Glass Fiber 30%
Induction (4-poles)
29.0 - 27.0
10
835
945
1,055
CU-C73KE
TOP VIEW
–
–
–
22.2 (780)
High 46 - 45
G ; 3-way valve 3/8"
L ; 2-way valve 1/4"
G (gas side) ; 3/8"
L (liquid side) ; 1/4"
–
–
–
–
18-29/32 (480)
30-23/32 (780)
9-21/32 (245)
57 (26)
Rotary (1 cylinder)
rolling piston type
Induction (2-poles)
500
Propeller Fan
AES + Glass Fiber 16%
Induction (6-poles)
54.7 - 47.9
20
–
–
685
Untitled-1 6/21/00, 10:59 AM5

– 6 –
MAC9512086C2
CS-C73KE
Product Specifications
Description
Tube material
Fin material
Fin Type
Row / Stage
FPI
Size (W ×H ×L)
µF, VAC
µF, VAC
Length
Flow Rate
Inner Diameter
Material
Style
Heat
Exchanger
Refrigerant Control Device
Refrigeration Oil
Refrigerant (R-22)
Thermostat
Protection Device
Capillary Tube
Air Filter
Capacity Control
Compressor Capacitor
Fan Motor Capacitor
Unit
mm
(c.c)
g (oz)
mm
s/min
mm
(Plate fin configuration, forced draft)
Capillary Tube
• Specifications are subject to change without notice for further improvement.
CS-C73KE
Evaporator
Copper
Aluminium
Slit Fin
2 ×14
21
614 ×294 ×25.4
–
–
–
Electronic Control
–
–
–
–
P.P.
Honeycomb
–
1.5 µF, 400VAC
CU-C73KE
Condenser
Copper
Aluminium
Louver Fin
1 ×18
17
856 ×457.2 ×22
Capillary Tube
SUNISO 4GDID or
ATMOS M60 (260)
645 (22.8)
–
2 Stage Overload Protector
450
7.9
1.2
–
20 µF, 370VAC
1.2 µF, 400VAC
Untitled-1 6/21/00, 10:59 AM6

– 7 –
MAC9512086C2
CS-C73KE
Unit
kW
Btu/h
s/h
Pint/h
Phase
V
Cycle
OUTLET
INTAKE
m3/min (cfm)
m3/min (cfm)
m3/min (cfm)
m3/min (cfm)
dB (A)
W
A
W/W
A
inch
inch
inch
inch
mm
m
m
inch (mm)
inch (mm)
inch (mm)
lb (kg)
W
W
W
rpm
rpm
rpm
Product Specifications
Inner diameter
Length
Input
Running Current
COP
Starting Current
Cooling Capacity
Moisture Removal
Power Source
Airflow Method
Air Volume
Noise Level
Electrical
Data
Piping Connection Port
(Flare piping)
Pipe Size
(Flare piping)
Drain
Hose
Power Cord Length
Number of core-wire
Dimensions
Net Weight
Compressor
Air Circulation
Height
Width
Depth
Type
Motor Type
Rated Output
Type
Material
Motor Type
Input
Rated Output
Fan Low
Speed Medium
High
Indoor Air (Lo)
Indoor Air (Me)
Indoor Air (Hi)
Outdoor Air
2.75 - 2.65
9,390 - 9,050
1.6
3.4
Single
230 - 220
50
800 - 770
3.5 - 3.6
3.44 - 3.44
16.4
CS-C93KE
SIDE VIEW
6.8 (240)
7.3 (260)
8.7 (310)
–
High 37 - 36, Low 30 - 28
G ; Half Union 3/8"
L ; Half Union 1/4"
G (gas side) ; 3/8"
L (liquid side) ; 1/4"
12
0.7
2.0
3 (1.0 mm2)
10-31/32 (279)
31-15/32 (799)
7-15/32 (190)
20 (9.0)
–
–
–
Cross-flow Fan
AS + Glass Fiber 30%
Induction (4-poles)
35.5 - 33.0
15
925
995
1,185
CU-C93KE
TOP VIEW
–
–
–
22.2 (780)
High 47 - 46
G ; 3-way valve 3/8"
L ; 2-way valve 1/4"
G (gas side) ; 3/8"
L (liquid side) ; 1/4"
–
–
–
–
18-29/32 (480)
30-23/32 (780)
9-21/32 (245)
64 (29.0)
Rotary (1 cylinder)
rolling piston type
Induction (2-poles)
700
Propeller Fan
AES + Glass Fiber 16%
Induction (6-poles)
54.7 - 47.9
20
–
–
685
Untitled-1 6/21/00, 10:59 AM7

– 8 –
MAC9512086C2
CS-C73KE
Heat
Exchanger
Refrigerant Control Device
Refrigeration Oil
Refrigerant (R-22)
Thermostat
Protection Device
Capillary Tube
Air Filter
Capacity Control
Compressor Capacitor
Fan Motor Capacitor
Product Specifications
Description
Tube material
Fin material
Fin Type
Row / Stage
FPI
Size (W ×H ×L)
µF, VAC
µF, VAC
Length
Flow Rate
Inner Diameter
Material
Style
Unit
mm
(c.c)
g (oz)
mm
s/min
mm
(Plate fin configuration, forced draft)
Capillary Tube
• Specifications are subject to change without notice for further improvement.
CS-C93KE
Evaporator
Copper
Aluminium
Slit Fin
2 ×14
21
614 ×294 ×25.4
–
–
–
Electronic Control
–
–
–
–
P.P.
Honeycomb
–
1.5 µF, 400VAC
CU-C93KE
Condenser
Copper
Aluminium
Louver Fin
1 ×18
17
856 ×457.2 ×22
Capillary Tube
SUNISO 4GDID or
ATMOS M60 (320)
760 (26.8)
–
2-Stage Overload Protector
1,040
9.0
1.5
–
30 µF, 370VAC
1.2 µF, 400VAC
Untitled-1 6/21/00, 10:59 AM8

– 9 –
MAC9512086C2
CS-C73KE
Unit
kW
Btu/h
s/h
Pint/h
Phase
V
Cycle
OUTLET
INTAKE
m3/min (cfm)
m3/min (cfm)
m3/min (cfm)
m3/min (cfm)
dB (A)
W
A
W/W
A
inch
inch
inch
inch
mm
m
m
inch (mm)
inch (mm)
inch (mm)
lb (kg)
W
W
W
rpm
rpm
rpm
Product Specifications
Inner diameter
Length
Input
Running Current
COP
Starting Current
Cooling Capacity
Moisture Removal
Power Source
Airflow Method
Air Volume
Noise Level
Electrical
Data
Piping Connection Port
(Flare piping)
Pipe Size
(Flare piping)
Drain
Hose
Power Cord Length
Number of core-wire
Dimensions
Net Weight
Compressor
Air Circulation
Height
Width
Depth
Type
Motor Type
Rated Output
Type
Material
Motor Type
Input
Rated Output
Fan Low
Speed Medium
High
Indoor Air (Lo)
Indoor Air (Me)
Indoor Air (Hi)
Outdoor Air
3.65 - 3.52
12,500 - 12,000
2.1
4.4
Single
230 - 220
50
1,190 - 1,150
5.3 - 5.4
3.07 - 3.06
26
CS-C123KE
SIDE VIEW
7.4 (260)
8.0 (280)
9.0 (290)
–
High 39 - 39, Low 34 - 33
G ; Half Union 1/2"
L ; Half Union 1/4"
G (gas side) ; 1/2"
L (liquid side) ; 1/4"
12
0.7
2.0
3 (1.0 mm2)
10-31/32 (279)
31-15/32 (799)
7-15/32 (190)
20 (9.0)
–
–
–
Cross-flow Fan
AS + Glass Fiber 30%
Induction (4-poles)
35.5 - 33.0
15
1,060
1,145
1,280
CU-C123KE
TOP VIEW
–
–
–
32.2 (1130)
High 49 - 48
G ; 3-way valve 1/2"
L ; 2-way valve 1/4"
G (gas side) ; 1/2"
L (liquid side) ; 1/4"
–
–
–
–
21-1/4 (540)
27-17/32 (699)
11-7/32 (285)
82 (37)
Rotary (1 cylinder)
rolling piston type
Induction (2-poles)
1,100
Propeller Fan
AES + Glass Fiber 16%
Induction (6-poles)
72.0 - 68.0
25
–
–
785
Untitled-1 6/21/00, 10:59 AM9