● Replacement Parts List ...............48, 50, 52, 54
● Electronic Parts List .......................................55
1996 Matsushita Industrial Corp. Sdn. Bhd.
(11969-T)
All rights reserved. Unauthorized copying and distribution is a violation of law.
CS-A90KECS-MA90KE
!
WARNING
This service information is designed for experienced repair technicians only and is not designed for use by the general public. It does not contain
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.
!
PRECAUTION OF LOW TEMPERATURE
In order to avoid frostbite, be assured of no refrigerant leakage during the installation or repairing of refrigeration circuit.
Features
• 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
– 1 –
Functions
Remote Control
CS-MA90KE
OFF / ON L
MODE
FAN SPEED
SWING /
MANUAL
Operation OFF / ON
Operation Mode Selection
• AUTOAutomatic Operation Mode
• HEATHeating Operation Mode
• COOLCooling Operation Mode
• DRYSoft Dry Operation Mode
Indoor Fan Speed Selection
• h j kLow Speed
l
• h j kMedium Speed
lll
• h j kHigh Speed
lllll
• AUTOFANAutomatic Fan Speed
Airflow Direction Control
• SWINGAutomatic Airflow Direction
Control
• MANUALAirflow Direction Manual Control
TEMP.
ON-TIMER
OFF-TIMER
TIME
SET
CANCEL
CLOCK
(q)
Room Temperature Setting
• Temperature Setting (16˚C to 30˚C)
• Automatic Operation
m / n 2˚C lower than standard
nStandard
n - o 2˚C higher than standard
Timer Operation Selection
• 24-hour, OFF / ON Real Timer Setting.
Time / Timer Setting
• Hours and minutes setting.
Timer Operation Set / Cancel
• ON Timer and OFF Timer setting and
cancellation.
Clock Setting
• Current time setting.
– 2 –
SLEEP
Sleep Mode Operation OFF / ON
CS-A90KECS-MA90KE
Functions
Indoor Unit
POWER L
AUTO
OFF / ON
TEST RUN
OFF / ON
Power Switch OFF / ON
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.
Operation Test Running / Pump
Down Switch
• Used when test running or servicing.
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
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)
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.
–
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.
– 3 –
Functions
Outdoor Unit
CS-MA90KE
Compressor Reverse Rotation
Protection Control
• 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.
60 Secs. Forced Operation Control
• Once the compressor is activated, it does
not stop for 60 secs. (Stops immediate
with remote control stop signal.)
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).
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 Operation Control
• Inner protector.
Deice Control
•
To prevent frosting at outdoor heat
exchanger. (Only for Heating Operation)
• Outdoor indoor heat exchanger is sensed
by TRS (Thermal Reed Switch).
– 4 –
CS-A90KECS-MA90KE
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)