Panasonic CS-A73KE 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 – 30
●Installation Information ..........................31 – 32
●2-way, 3-way Valves..............................33 – 39
●Servicing Information.............................40 – 42
●Troubleshooting Guide ..........................43 – 44
●Technical Data.......................................45 – 48
●Exploded View...................................49, 51, 53
●Replacement Parts List .....................50, 52, 54
●Electronic Parts List.......................................55
CS-A73KE / CU-A73KE
CS-A93KE / CU-A93KE
CS-A123KE / CU-A123KE
ORDER NO. MAC9902015C2
 1999 Matsushita Air-Conditioning Corp. Sdn. Bhd.
(183914D)
All rights reserved. Unauthorized copying and distribu-
tion is a violation of law.
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– 1 –
MAC9512086C2
CS-A73KE
• High Efficiency
• Compact Design
• Comfort Enviroment
– 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
• Quality Improvement
– Gas leakage protection
– Prevent compressor reverse rotation
– 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–A73KE, CS/CU–A93KE, long piping up to 10
meter.
– CS/CU–A123KE, 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
Thisserviceinformationisdesignedforexperienced repairtechniciansonlyandis notdesigned foruse bythe generalpublic.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.
!!
!!
!
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– 2 –
MAC9512086C2
CS-A73KE
Remote Control
Functions
Operation OFF / ON
OFF / ON IRoom Temperature Setting TEMP.
• 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.
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
•AUTO FAN 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
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– 3 –
MAC9512086C2
CS-A73KE
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
– Heating : Fan speed varies from Me →
SLo in accordance with indoor
heat exchanger.
– Cooling : Fan rotates at Hi and Me
speed. Deodorizing control is
available.
– Soft Dry : Fan rotates at SLo speed.
Deodorizing control is avail-
able.
Airflow Direction Control
• Automatic air swing and manual adjusted
by remote control for vertical airflow.
• Manually adjusted by hand for horizontal
airflow.
Operation Mode
• Heating, Cooling, Soft Dry 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.
Hot-Start Control
• The indoor fan remain stop until the indoor
heat exchanger temperature reaches 30°C
• The indoor fan will operate at SLo and Lo–
when indoor heat exchanger temperature
reaches 30°C - 39°C
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– 4 –
MAC9512086C2
CS-A73KE
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-A123KE
CU-A73KE, CU-A93KE
Deice Control
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 ex-
changer temperature reaches 65°C or
above. (Heating Operation Only)
4-Way Valve Control
• When the unit is switched to "OFF" during
Heating Operation, 4-way valve stays at
Heating position for 5 minutes.
Outdoor Fan Motor Control
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).
• To prevent frosting at outdoor heat
exchanger. (Only for Heating Operation)
• Temperature of outdoor heat exchanger is
sensed by TRS (Thermal Reed Switch).
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– 5 –
MAC9512086C2
CS-A73KE
Product Specifications
Cooling Capacity
Heating 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
Inner diameter
Length
Input
Running Current
COP
Starting Current
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
Unit
kW
Btu/h
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
2.20 - 2.10
7,500 - 7,200
2.45 - 2.40
8,360 - 8,200
1.4
3.0
Single
230 - 220
50
Cooling ; 700 - 680
Heating ; 640 - 600
Cooling ; 3.6 - 3.5
Heating ; 3.4 - 3.2
Cooling ; 3.14 - 3.09
Heating ; 3.83 - 4.00
15.5
CU-A73KE
TOP VIEW
–
–
–
27.8 (981) - 26.8 (946)
Cooling ; High 47/45
Heating ; High 49/47
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-pole)
600
Propeller Fan
AES + Glass Fiber 12%
Induction (6-pole)
65.8 - 57.5
20
–
–
730 - 705
CS-A73KE
SIDE VIEW
Cooling ; 5.9 (206) - 5.7 (200)
Heating ; 6.7 (238) - 6.6 (233)
Cooling ; 6.7 (237) - 6.4 (227)
Heating ; 7.6 (269) - 7.5 (265)
Cooling ; 7.5 (260) - 7.2 (250)
Heating ; 8.5 (300) - 8.4 (300)
–
Cooling ; High 34/33, Low 29/27
Heating ; High 36/35, 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-pole)
29.0 - 27.0
10
835 - 810
945 - 920
1055 - 1030
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– 6 –
MAC9512086C2
CS-A73KE
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-A73KE
Evaporator
Copper
Aluminium
Slit Fin
2 ×14
18
614 ×294 ×25.4
–
–
–
Electronic Control
–
–
–
–
P.P.
Honeycomb
–
1.5 µF, 400VAC
CU-A73KE
Condenser
Copper
Aluminium
Louver Fin
1 ×18
19
856 ×457.2 ×22
Capillary Tube
SUNISO 4GDID or
ATMOS M60 (290)
815 (28.8)
–
Overload Protector
Cooling ;850, Heating ;360
Cooling ;4.5, Heating ;10.5
Cooling ;1.1, Heating ;1.3
–
15 µF, 440VAC
1.2 µF, 400VAC
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– 7 –
MAC9512086C2
CS-A73KE
Product Specifications
Inner diameter
Length
Input
Running Current
COP
Starting Current
Cooling Capacity
Heating 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
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
CS-A93KE
SIDE VIEW
Cooling ; 6.4 (226) - 5.9 (209)
Heating ; 6.8 (240) - 6.5 (228)
Cooling ; 7.6 (269) - 7.1 (251)
Heating ; 8.1 (286) - 7.7 (273)
Cooling ; 9.2 (320) - 8.9 (310)
Heating ; 9.8 (350) - 9.7 (340)
–
Cooling ; High 39/38, Low 29/28
Heating ; High 39/39, 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-pole)
37.0 - 34.0
14
865 -810
1030 -970
1245 - 1215
CU-A93KE
TOP VIEW
–
–
–
27.8 (981) - 26.8 (946)
Cooling ; High 49/48
Heating ; High 49/47
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)
71 (32.0)
Rotary (1 cylinder)
rolling piston type
Induction (2-pole)
800
Propeller Fan
AES + Glass Fiber 12%
Induction (6-pole)
65.8 - 57.5
20
–
–
730 - 705
2.80 - 2.70
9,550 - 9,200
3.40 - 3.30
11,590 - 11,250
1.6
3.4
Single
230 - 220
50
Cooling ; 980 - 950
Heating ; 885 - 870
Cooling ; 4.6 - 4.6
Heating ; 4.2 - 4.2
Cooling ; 2.86 - 2.84
Heating ; 3.84 - 3.79
22
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– 8 –
MAC9512086C2
CS-A73KE
Product Specifications
Heat
Exchanger
Refrigerant Control Device
Refrigeration Oil
Refrigeration (R-22)
Thermostat
Protection Device
Capillary Tube
Air Filter
Capacity Control
Compressor Capacitor
Fan Motor Capacitor
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
• Specifications are subject to change without notice for further improvement.
Unit
mm
(c.c)
g (oz)
mm
s/min
mm
(Plate fin configuration, forced draft)
Capillary Tube
CS-A93KE
Evaporator
Copper
Aluminium
Slit Fin
2 ×14
18
614 ×294 ×25.4
–
–
–
Electronic Control
–
–
–
–
P.P.
Honeycomb
–
1.5 µF, 400VAC
CU-A93KE
Condenser
Copper
Aluminium
Louver Fin
1 ×18
19
856 ×457.2 ×22
Capillary Tube
SUNISO 4GDID or
ATMOS M60 (350)
935 (33.0)
–
Overload Protector
Cooling ; 1,075, Heating ; 325
Cooling ; 5.0, Heating ; 13.4
Cooling ; 1.2, Heating ; 1.4
–
–
25 µF, 370VAC
1.2 µF, 400VAC
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– 9 –
MAC9512086C2
CS-A73KE
Product Specifications
Inner diameter
Length
Input
Running Current
COP
Starting Current
Cooling Capacity
Heating 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
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)
kW
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
3.55 - 3.40
12,110 - 11,590
4.20 - 4.05
14,320 - 13,810
2.1
4.4
Single
230 - 220
50
Cooling ; 1.24 - 1.20
Heating ; 1.17 - 1.13
Cooling ; 5.6 - 5.6
Heating ; 5.2 - 5.2
Cooling ; 2.86 - 2.83
Heating ; 3.59 - 3.58
26
CS-A123KE
SIDE VIEW
Cooling ; 7.5 (263) - 7.0 (247)
Heating ; 8.0 (281) -7.5 (266)
Cooling ; 8.1 (284) - 7.7 (271)
Heating ; 8.6 (303) - 8.3 (293)
Cooling ; 9.0 (320) - 8.8 (310)
Heating ; 9.6 (340) - 9.5 (340)
–
Cooling ; High 39/39, Low 34/33
Heating ; High 39/39, Low 33/32
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-pole)
35.5 - 33.0
15
1060 -1000
1145 - 1100
1280 - 1260
CU-A123KE
TOP VIEW
–
–
–
35.0 (1,236) - 32.8 (1,193)
Cooling ; High 49/48
Heating ; 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)
86 (39.0)
Rotary (1 cylinder)
rolling piston type
Induction (2-pole)
1,100
Propeller Fan
AES + Glass Fiber 12%
Induction (6-pole)
71.0 - 67.0
25
–
–
805 - 780
Untitled-10 6/19/00, 11:04 AM9