Panasonic CS-MA90KE User manual

ServiceManual
Multi-Split 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 – 16
●Operation Details...................................17 – 27
●Installation Information ..........................28 – 29
●2-way, 3-way Valves..............................30 – 36
●Servicing Information.............................37 – 40
●Troubleshooting Guide ..........................41 – 42
●Technical Data.......................................43 – 46
●Exploded View.............................47, 49, 51, 53
●Replacement Parts List ...............48, 50, 52, 54
●Electronic Parts List.......................................55
ORDER NO. MAC9611042C2
CS-MA90KE / CU-MA180KE
CS-MA120KE / CU-MA240KE
CS-MA70KE / CU-MA190KE
CS-MA120KE
 1996 Matsushita Industrial Corp. Sdn. Bhd.
(11969-T)
All rights reserved. Unauthorized copying and distribu-
tion is a violation of law.
Untitled-1 6/30/00, 7:44 AM1

– 1 –
CS-A90KECS-MA90KE
MAC9509078C2
PRECAUTION OF LOW TEMPERATURE
In order to avoid frostbite, be assured of no refrigerant leakage during the installation or repairing of refrigeration circuit.
• High Efficiency
• Compact Design
• Comfort Improvement
– Wider range of horizontal discharge air
– Longer hours of sleep mode operation
• Auto Restart
– Auto restart operation after power failure
• Removable and Washable
Front Panel
• Installation Work Improvement
– Long piping up to 15 m
• Quality Improvement
– Low voltage protection
– Gas leakage protection
– Prevent compressor reverse cycle
– 2-stage OLP to protect compressor
(CS-MA90KE / CS-MA120KE)
• Service Improvement
– Easy fan motor replacement procedure
Features
!
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-4 6/30/00, 7:51 AM1

– 2 –
MAC9509078C2
CS-MA90KE
Remote Control
Functions
Operation OFF / ON
OFF / ON LRoom Temperature Setting TEMP.
• Temperature Setting (16˚C to 30˚C)
• Automatic Operation
m /n 2˚C lower than standard
n Standard
n -o 2˚C higher than standard
Operation Mode Selection
•AUTO Automatic Operation Mode
•HEAT Heating Operation Mode
•COOL Cooling Operation Mode
•DRY Soft Dry Operation Mode
MODE
TIME 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
•SWING 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.
CLOCK
(q)
SWING /
MANUAL
Untitled-4 6/30/00, 7:51 AM2

– 3 –
CS-A90KECS-MA90KE
MAC9509078C2
Indoor Unit
Functions
Power Switch OFF / ON
POWER L
Auto Operation Switch
• Used when the remote control cannot be
used.
Remote Control Signal Receiving
Sound Control
• It can be controlled by pressing Auto
Operation Switch 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
and Hot Start operation
•SLEEP (Orange)..... Lights up in Sleep
Mode Operation
•TIMER (Orange)..... Lights up in Timer
Setting
• Used when test running or servicing.
Operation Mode
• Heating, Cooling, Soft Dry and Automatic
Mode.
Time Delay Safety Control
• Restarting is inhibited for appro. 3 or 4
minutes.
7 Minutes Time Save Control
• Cooling Operation only.
Auto Restart Control
• Operation is restarted 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
• The operation starts at SLo speed and
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
available.
Airflow Direction Control
• Automatic air swing and manual adjusted
by remote control for vertical airflow.
• Manually adjusted by hand for horizontal
airflow.
Hot-Start Control
• The indoor fan stops until the indoor heat
exchanger temperature over 30°C.
• The indoor fan operates at SLo and Lo–
when indoor heat exchanger temperature
reaches 30°C ~ 41°C.
• Hot Start is completed when indoor heat
exchanger reaches 41°C.
Untitled-4 6/30/00, 7:51 AM3

– 4 –
MAC9509078C2
CS-MA90KE
Compressor Reverse Rotation
Protection Control
Outdoor Unit
Functions
• To protect compressor from reverse
rotation when there is a instantaneous
power failure.
Overload Protector
• CS-MA90KE and CS-MA120KE
2-stage OLP to protect the compressor.
Overload Protector will trip when
– Temperature of compressor increases to
120°C.
– High temperature or high current flow to
compressor.
(Refer circuit diagram for OLP characteristic)
• CS-MA70KE
OLP to protect the compressor.
– OLP characteristic can be referred to
circuit diagram.
Overload Protection Control
• Outdoor fan stops when indoor heat
exchanger temperature rises to 51°C and
restarts when the indoor heat exchanger
temperature drops to 49°C.
• Compressor stops when indoor heat
exchanger temperature reaches 65°C or
above.
(Heating Operation only)
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).
• When the unit is switched to “OFF” during
Heating Operation, 4-way valve stays at
Heating position for 5 minutes.
• Inner protector.
4-Way Valve Control
Outdoor Fan Operation Control
60 Secs. Forced Operation Control
• Once the compressor is activated, it does
not stop for 60 secs. (Stops immediate
with remote control stop signal.)
Deice Control
• To prevent frosting at outdoor heat
exchanger. (Only for Heating Operation)
• Outdoor indoor heat exchanger is sensed
by TRS (Thermal Reed Switch).
Untitled-4 6/30/00, 7:51 AM4

– 5 –
CS-A90KECS-MA90KE
MAC9509078C2
2.05 - 2.00, 3.50 - 3.45
7,000 - 6,800, 11,900 - 11,800
2.15 - 2.10, 4.10 - 4.00
7,300 - 7,200, 14,000 - 13,600
1.3, 2.0
2.7, 4.2
Single
240 - 220
50
Cooling ; 660 - 600, 1,250 - 1,220
Heating ; 640 - 600, 1,280 - 1,230
Cooling ; 3.2 - 3.0, 5.6 - 5.7
Heating ; 3.1 - 3.0, 5.7 - 5.7
Cooling ; 3.1 - 3.3, 2.8 - 2.8
Heating ; 3.4 - 3.5, 3.2 - 3.3
13, 25
CS-MA70KE, CS-MA120KE
SIDE VIEW
Cooling ; 5.5 (190), 7.5 (260)
Heating ; 5.5 (190), 7.8 (280)
Cooling ; 6.0 (210), 8.4 (300)
Heating ; 6.0 (210), 8.7 (310)
Cooling ; 6.7 (240), 9.3 (330)
Heating ; 6.7 (240), 9.7 (340)
–
Cooling ; High 36-35, 42-41,
Low 30-29, 38-37
Heating ; High 36-35, 43-42,
Low 30-29, 38-37
G ; Half Union 3/8", 1/2"
L ; Half Union 1/4", 1/4"
G (gas side) ; 3/8", 1/2"
L (liquid side) ; 1/4", 1/4"
12
0.7
2.1
3 (1.0 mm2)
11-7/16 (290)
31-15/32 (799)
6-29/32 (175)
18 (8.0)
–
–
–
Cross-flow Fan
AS + Glass Fiber 30%
Transistor (4-poles)
–
20
950, 1,210
1,030, 1,350
1,150, 1,500
CU-MA190KE
TOP VIEW
–
–
–
22.4 (790), 22.0 (780)
Cooling ; High 47-45, 49-48 (51-50)
Heating ; High 49-47, 49-48 (52-51)
G ; 3-way valve 3/8", 1/2"
L ; 2-way valve 1/4", 1/4"
G (gas side) ; 3/8", 1/2"
L (liquid side) ; 1/4", 1/4"
–
–
–
–
39- 31/32(1015)
30-23/32 (780)
9-21/32 (245)
159 (72)
Rotary (1 cylinder)
rolling piston type
Induction (2-poles)
550, 1,100
Propeller Fan
AES + Glass Fiber 12%
Induction (6-poles)
58.6 × 2
20 × 2
–
–
730
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
Product Specifications
Input
Running Current
COP
Starting Current
Indoor Air (Lo)
Indoor Air (Me)
Indoor Air (Hi)
Outdoor Air
Inner diameter
Length
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
Untitled-4 6/30/00, 7:51 AM5

– 6 –
MAC9509078C2
CS-MA90KE
(Plate fin configuration, forced draft)
Capillary Tube
CU-MA190KE
Condenser
Copper
Aluminium
Corrugated Fin
1 ×18 2 ×19
19 16
856 ×457.2 ×22 706.2 ×482.6 ×44
669.9
Capillary Tube
SUNISO 4GDID or
ATMOS M60 (290, 430)
860, 1,100 (30.4, 38.8)
–
Overload Protector
Cooling ; 920, 720, Heating ; 590, 550
Cooling ; 4.0, 7.5, Heating ; 8.2, 12.5
Cooling ; 1.1, 1.3, Heating ; 1.3, 1.5
–
15 µF, 440VAC 30 µF, 370VAC
1.2 µF, 400VAC 1.2 µF, 400VAC
Product Specifications
Description
Tube material
Fin material
Fin Type
Row / Stage
FPI
Size (W ×H ×L)
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
µF, VAC
µF, VAC
Length
Flow Rate
Inner Diameter
Material
Style
• Specifications are subject to change without notice for further improvement.
CS-MA70KE, CS-MA120KE
Evaporator
Copper
Aluminium
Slot Fin
2 ×12 2 ×12
18 21
600 ×252 ×25.4
–
–
–
Electronic Control
–
–
–
–
P.P.
Honeycomb
–
–
Untitled-4 6/30/00, 7:51 AM6

– 7 –
CS-A90KECS-MA90KE
MAC9509078C2
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-MA90KE
SIDE VIEW
Cooling ; 6.3 (220)
Heating ; 6.4 (230)
Cooling ; 7.4 (260)
Heating ; 7.5 (260)
Cooling ; 8.4 (300)
Heating ; 8.6 (300)
–
Cooling ; High 38-38, Low 30-30
Heating ; High 39-39, Low 30-30
G ; Half Union 3/8"
L ; Half Union 1/4"
G (gas side) ; 3/8"
L (liquid side) ; 1/4"
12
0.7
2.1
3 (1.0mm2)
11-7/16 (290)
31-15/32 (799)
6-29/32 (175)
18 (8.0)
–
–
–
Cross-flow Fan
AS + Glass Fiber 30%
Transistor (4-poles)
–
20
980
1,150
1,310
2.65 ×2 - 2.60 ×2
9,000 ×2 - 8,900 ×2
3.15 ×2 - 3.00 ×2
10,700 ×2 - 10,200 ×2
1.6 ×2
3.4 ×2
Single
240 - 220
50
Cooling ; 940 ×2 - 890 ×2
Heating ; 950 ×2 - 880 ×2
Cooling ; 4.1 ×2 - 4.1 ×2
Heating ; 4.2 ×2 - 4.1 ×2
Cooling ; 2.8 - 2.9
Heating ; 3.3 - 3.4
20 ×2
CU-MA180KE
TOP VIEW
–
–
–
22.4 (790)
Cooling ; High 49-48 (52-51)
Heating ; High 49-47 (52-50)
G ; 3-way valve 3/8"
L ; 2-way valve 1/4"
G (gas side) ; 3/8"
L (liquid side) ; 1/4"
–
–
–
–
38-3/4 (985)
30-23/32 (780)
9-21/32 (245)
152 (69)
Rotary (1 cylinder)
rolling piston type
Induction (2-poles)
750 ×2
Propeller Fan
AES + Glass Fiber 12%
Induction (6-poles)
58.6 ×2
20 ×2
–
–
730
Untitled-4 6/30/00, 7:51 AM7

– 8 –
MAC9509078C2
CS-MA90KE
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
Unit
mm
(c.c)
g (oz)
mm
s/min
mm
Product Specifications
CS-MA90KE
Evaporator
Copper
Aluminium
Slot Fin
2 ×12
18
600 ×252 ×25.4
–
–
–
Electronic Control
–
–
–
–
P.P.
Honeycomb
–
–
(Plate fin configuration, forced draft)
Capillary Tube
• Specifications are subject to change without notice for further improvement.
CU-MA180KE
Condenser
Copper
Aluminium
Corrugated Fin
1 ×18
19
856 ×457.2 ×22
Capillary Tube
SUNISO 4GDID or
ATMOS M60 (350 ×2)
850 ×2 (30.0 ×2)
–
Overload Protector
Cooling ; 1,033, Heating ; 585
Cooling ; 4.8, Heating ; 9.9
Cooling ; 1.2, Heating ; 1.4
–
–
25 µF, 370VAC
(Upper unit) 1.0 µF, 400VAC
(Lower unit) 1.2 µF, 400VAC
Untitled-4 6/30/00, 7:51 AM8

– 9 –
CS-A90KECS-MA90KE
MAC9509078C2
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
CS-MA120KE
SIDE VIEW
Cooling ; 7.5 (260)
Heating ; 7.8 (280)
Cooling ; 8.4 (300)
Heating ; 8.7 (310)
Cooling ; 9.3 (330)
Heating ; 9.7 (340)
–
Cooling ; High 42-41, Low 38-37
Heating ; High 43-42, Low 38-37
G ; Half Union 1/2"
L ; Half Union 1/4"
G (gas side) ; 1/2"
L (liquid side) ; 1/4"
12
0.7
2.1
3 (1.0mm2)
11-7/16 (290)
31-15/32 (799)
6-29/32 (175)
18 (8.0)
–
–
–
Cross-flow Fan
AS + Glass Fiber 30%
Induction (4-poles)
–
20
1,210
1,350
1,500
3.50 ×2 - 3.45 ×2
11,900 ×2 - 11,800 ×2
4.10 ×2 - 4.00 ×2
14,000 ×2 - 13,600 ×2
2.0 ×2
4.2 ×2
Single
240 - 220
50
Cooling ; 1.25 ×2 - 1.22 ×2
Heating ; 1.28 ×2 - 1.23 ×2
Cooling ; 5.6 ×2 - 5.7 ×2
Heating ; 5.7 ×2 - 5.7 ×2
Cooling ; 2.8 - 2.8
Heating ; 3.2 - 3.3
25 ×2
CU-MA240KE
TOP VIEW
–
–
–
22.0 (780)
Cooling ; High 49-48 (52-51)
Heating ; High 49-48(52-51)
G ; 3-way valve 1/2"
L ; 2-way valve 1/4"
G (gas side) ; 1/2"
L (liquid side) ; 1/4"
–
–
–
–
41-5/32 (1045)
30-23/32 (780)
9-21/32 (245)
183 (83)
Rotary (1 cylinder)
rolling piston type
Induction (2-poles)
1,100 ×2
Propeller Fan
AES + Glass Fiber 12%
Induction (6-poles)
58.6 ×2
20 ×2
–
–
730
Untitled-4 6/30/00, 7:51 AM9