Panasonic CS-MA90KE Service Manual Download Page 22

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MAC9509078C2

CS-MA90KE

Operation Details

Time Delay Safety Control

➡

Compressor Reverse Rotation
Protection Control

➡

4-way Valve Control

Compressor

OFF

Compressor

restarts

(4 minutes waiting)

Compressor

restarts

(4 minutes waiting)

Compressor

OFF

1234567890123456789012

Indoor
heat
exchanger

SLo

Indoor Fan

OFF

Hot Start Control

3) Heating Mode Operation

Heating in operation according to Remote Control setting.

• When the compressor is stopped by Power Switch, Remote Control or there is a power failure, it restarts after 3

minutes when the Power Switch, Remote Control is turned ON or the power supply is resumed.

• When the setting temperature is reached during heating operation, the compressor stops and it will not start for

4 minutes.

• Indoor Fan stops for 1 minute after 3 minutes compressor stops. Then, it will operate with SLo fan speed.

• If the temperature of the indoor heat exchanger rises to 51

C, Outdoor Fan stops.

The Outdoor Fan restarts when the indoor heat exchanger temperature falls to 49

• If the indoor heat exchanger becomes 65

C or more, the compressor will stop and restart automatically.

(Time Delay Safety Control – 4 minutes waiting)

• If the compressor is operating continually for 5 minutes or longer and temperature difference between intake air and

indoor heat exchanger is 5

C or less for 2 minutes, compressor will stop and restart automatically.

(Time Delay Safety Control is valid).

∆

T = Indoor heat exchanger temperature – intake air temperature

This is to protect reverse rotation of the compressor when there is a instantaneous power failure.

• 4-way valve always ON during Heating operation.
• When the unit is switched to "OFF" during Heating operation, 4-way valve stays at Heating position for 5 minutes.

When Heating operation starts, Indoor Fan will not start until the indoor heat exchanger reaches 30

C as diagram

shown.

Hot Start is completed when indoor heat exchanger reaches 41

–

Overload Protection Control

• Compressor starts for 5 minutes

•

∆

≤

C for 2 minutes

Indoor heat exchanger

temperature

≤

(

Untitled-5

6/30/00, 7:54 AM

Summary of Contents for CS-MA90KE

Page 1: ...formation 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...

Page 2: ...eakage protection Prevent compressor reverse cycle 2 stage OLP to protect compressor CS MA90KE CS MA120KE Service Improvement Easy fan motor replacement procedure Features WARNING This service informa...

Page 3: ...ode 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 Spee...

Page 4: ...nly 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...

Page 5: ...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...

Page 6: ...igh 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 cylinde...

Page 7: ...VAC 1 2 F 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...

Page 8: ...door 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...

Page 9: ...z 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 Specificat...

Page 10: ...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...

Page 11: ...ant Control Device Refrigeration Oil Refrigeration 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 F...

Page 12: ...tlet direction Left piping hole Right piping hole 290 115 55 60 2100 57 142 16 Remote control transmitter 45 410 Back View Installation plate hooks Drain ports Gas side Liquid side 40 710 40 276 7 60...

Page 13: ...985 CU MA240K 1045 CU MA190K 1015 CU MA180KE CU MA190KE CU MA240KE 67 104 105 105 570 280 312 67 A 780 57 245 Gas side 3 way valve Liquid side 2 way valve Unit A Unit B 2 way valve Liquid side 3 way v...

Page 14: ...E PIPE TEMP SENSOR T R S SENSOR TEMP INTAKE PIPE TEMP SENSOR INDOOR OUTDOOR COOLING HEATING HEAT EXCHANGER EVAPORATOR HEAT EXCHANGER CONDENSER 2 WAY VALVE VALVE 3 WAY 3 WAY VALVE VALVE 2 WAY CONDENSER...

Page 15: ...A120KE FUSE ZNR1 ZNR2 3 4 1 TRANSFORMER FM CT1 STEPPING 3C 4C 5C RECEIVER P C B INDICATOR P C B WIRELESS REMOTE CONTROL TRANSMITTER 2 2 1 4 3 FM RELAY B RELAY A COMP COMP O L P O L P FOR CU A120K A90K...

Page 16: ...RED O ORANGE P PINK Y G YELLOW GREEN GRY GRAY 2RS122D5AB02 5 63 12 17 CONNECTION C R C S Resistance of Compressor Windings CS MA70KE CU MA190KE CS MA120KE CU MA190KE 2KS224D5AC02 2 45 3 86 CONNECTION...

Page 17: ...NSOR INTAKE TEMP P 5 Y O R BR CN STM G CN TH Y 1 3 2 4 FLAP MOTOR 4 2 3 1 102 C THERMAL FUSE Y G 2 1 3 1 AC W 3 15A FUSE L P CN MTR G W W W W Y R B MOTOR FAN 1 2 3 AUTO SW DOWN SW PUMP POWER SUPPLY CO...

Page 18: ...imes the compressor will stops The above phenomenon is reset when there is a change to heating mode or stopped by Remote Control Switch If the compressor is operating continually for 5 minutes or long...

Page 19: ...eed is Hi until the compressor stops when the set temperature is reached 2 Fan Speed is Me after the compressor restarts Description of operation d g Time Delay Safety Control waiting for 3 minutes g...

Page 20: ...oor Fan Compressor and Outdoor Fan stop for 6 minutes Once the compressor stops it will not start for 3 minutes during Cooling operation Same as Anti Freezing Control for Cooling Mode operation For So...

Page 21: ...6 6 6 6 4 1 Cooling ON Cooling OFF Soft Dry ON Soft Dry OFF 1 5 C 1 0 C SLo SLo SLo SLo SLo SLo SLo SLo SLo SLo SLo SLo Indoor Heat Exchanger Temp 16 C 2 C 6 Intake Air Temperature Set Temp 1 Descript...

Page 22: ...hed during heating operation the compressor stops and it will not start for 4 minutes Indoor Fan stops for 1 minute after 3 minutes compressor stops Then it will operate with SLo fan speed If the temp...

Page 23: ...re OFF 32 30 15 Lo Me Heating Operating Time Diagram CS MA90K MA70K Stop Blinking Operation CS MA120K Description of operation a b Hot start Indoor fan OFF b d Hot start Indoor fan SLo g I Indoor fan...

Page 24: ...heating operation if the outdoor Fan OFF duration due to overload control is accumulated up to 60 minutes and after compressor starts for 1 minute deicing starts Deicing ends when a 12 minutes after d...

Page 25: ...detected g h Hot Start indoor fan OFF h i Hot Start indoor fan SLo n p Overload Control TRS detected Stop Blinking Operation Stop Blinking Operation Indoor Heat Exchanger Temp TRS Outdoor Heat Exchan...

Page 26: ...ture adjustment The following are added to the setting temperature specified as above Operation Details Cooling Mode Soft Dry Mode Heating Mode Setting Temperature Standard 25 C 22 C 21 C 23 C 20 C Co...

Page 27: ...Control When set to Auto Fan Speed the fan speed is adjusted between maximum and minimum setting as shown in the table Manual Fan Speed Control Basic fan speed adjustment 3 settings from Lo to Hi can...

Page 28: ...d and the airflow direction louver move up and down in the range shown in the diagram The louver can be stopped by releasing the button at the desired louver position When the remote control is used t...

Page 29: ...rect sunlight or rain be careful that heat radiation from the condenser is not obstructed There should not be any animal or plant which could be affected by hot air discharged Keep the spaces indicate...

Page 30: ...exchanger To carry out the drainage test remove into the heat exchanger Saddle Vinyl tape Narrow This illustration is for explanation purposes only The indoor unit will actually face a different way...

Page 31: ...cing Shaft Position Close With valve cap Closed Counter Clockwise Open With valve cap Closed Clockwise Open Open Open Open Open position Closed position 2 way 3 way Valve To outdoor unit To outdoor un...

Page 32: ...e of the charging set and turn off the vacuum pump Make sure that the needle in the gauge does not move after approximately five minutes BE SURE TO TAKE THIS PROCEDURE IN ORDER TO AVOID GAS LEAKAGE Lo...

Page 33: ...lve Open CLOSE CLOSE Refrigerant Reclaiming Equipment Gas side 2 way valve 6 Operate the air conditioner at the cooling cycle and stop it when the gauge indicates 0 MPa 0 kg cm2 G If the unit cannot b...

Page 34: ...om step 3 If the leaks do not stop when the connections are retightened repair the location of the leak Procedure 1 Connect a charging hose with a push pin to the Low side of a charging set and the se...

Page 35: ...the charge set s centre hose to refriger ant reclaiming equipment Purge the air from charge hose 4 Open the valve Low side on the charge set and discharge the refrigerant until the gauge indicates 0 0...

Page 36: ...cuum of 4 mmHg or less 3 Close the valve Low side on the charge set turn off the vacuum pump and confirm that the gauge needle does not move approximately 5 minutes after turning off the vacuum pump 4...

Page 37: ...one time is not sufficient wait approximately 1 minute and then repeat the procedure pumping down pin Lo Hi Indoor unit Liquid side 2 way valve Outdoor unit Open 3 way valve Open OPEN CLOSE Charging c...

Page 38: ...LLOW GREEN fromthecontrolboard and sensors from its holders Refer Fig 1 2 Remove the Control Board The Control Board can be removed by releasing the top left and right tabs shown in Fig 2 3 4 Sensors...

Page 39: ...hown in Fig 6 and 7 4 To fix the Indoor Fan Motor ensure that the Fan Motor securing screw is positioned at the rear end and the Fan Motor lead wire is positioned parallel to the Fan Motor Fig 8 Fan M...

Page 40: ...the Air Discharge Grille and then pull the Air Discharge Grille in a down and forward direction Fig 10 3 Pull off the Bearing at the left of the Cross Flow Fan Fig 11 4 Take off the mounting tab on th...

Page 41: ...atteries are inserted for the first time or the batteries are replaced all the indications will blink and the remote control might not work If this happens remove the back cover of the remote control...

Page 42: ...eairtemperaturedif ference Less than 8 C at cooling mode Less than 14 C at heating mode Troubleshooting Guide Condition Indoor fan speed High Outdoor temperature 35 C at cooling mode and 7 C at heatin...

Page 43: ...n minutes after an operation is started Electric current during operation becomes approximately 20 lower than the normal value The discharge tube of the compressor becomes abnormally hot nor mally 70...

Page 44: ...rature Soft Dry OFF Soft Dry ON Diff 1 0 C Thermostat Setting Remote Control 34 24 22 20 18 28 26 30 32 18 20 22 24 26 28 30 Cooling OFF Set temperature 16 16 C Thermostat Setting Remote Control Intak...

Page 45: ...13 12 11 10 9 0 60 0 55 0 50 0 45 3 8 3 6 3 4 3 2 3 0 2 8 220V 240V I Q Current A Cooling Capacity kW LP O Outlet Gas Side Piping Pressure MPa Air Temperature C O Q I L P Heating Characteristic Piping...

Page 46: ...TEMPERATURE C Condition Room temperature 27 19 C Cooling operation At High fan Piping length 5 m 6 5 4 3 17 16 15 14 13 0 60 0 55 0 50 0 45 2 9 2 8 2 7 2 6 2 5 2 4 220V 240V I Q Current A Cooling Capa...

Page 47: ...1 6 1 5 1 4 1 3 5 0 4 5 4 0 3 5 3 0 220V 240V I Q Current A Heating Capacity kW HP O Outlet Gas Side Piping Pressure MPa Air Temperature C O Q I L P 1 5 10 15 PIPING LENGTH m Condition Room temperatu...

Page 48: ...47 CS MA90KE Exploded View CS MA70KE CS MA120KE CU MA190KE CS MA70KE CS MA120KE 9 4 0 _ 3 1 2 7 2 4 8 3 5 6 1 0 1 V 5 6...

Page 49: ...49 CS MA90KE _ Exploded View CS MA70KE CS MA120KE CU MA190KE CU MA190KE 4 8 6 0 1 5 V V _ 8 9 1 7 6 5 4 3 2 8 9 1 7 6 5 4 3 2 7...

Page 50: ...51 CS MA90KE Exploded View CS MA90KE CU MA180KE CS MA120KE CU MA240KE CS MA90KE CS MA120KE 9 4 0 _ 3 1 2 7 2 4 8 3 5 6 1 0 1 V 5 6...

Page 51: ...53 CS MA90KE _ Exploded View CS MA90KE CU MA180KE CS MA120KE CU MA240KE CU MA180KE CU MA240KE 4 8 6 0 1 5 V V _ 3 8 9 1 7 6 5 4 3 2 8 9 2 7 6 5 4 3 2 7...

Page 52: ...FILTER NO 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 CS MA70KE CWD50C202 CWA98244 CWH02C053 CWH4580304 CWH64K007 C...

Page 53: ...ACITOR TEMPERATURE RELAY CABINET ASS Y CABINET FRONT PLATE CONTROL BOARD COVER OPERATING INSTRUCTIONS INSTALLATION INSTRUCTIONS FLAT PLATE FLAT PLATE FLAT PLATE FLAT PLATE FLAT PLATE Model CU MA190KE...

Page 54: ...YING FILTER NO 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 CS MA90KE CWD50C202 CWA98244 CWH02C053 CWH4580304 CWH64K...

Page 55: ...PERATING INSTRUCTIONS INSTALLATION INSTRUCTIONS CHASSY ASSY Y LOWER CABINET FRONT PLATE FLAT PLATE FLAT PLATE FLAT PLATE FLAT PLATE FLAT PLATE Model CU MA180KE CU MA240KE Note All parts are supplied f...

Page 56: ...SONATOR DIODE DIODE PART NO A48004 A40322 A54RB44 08V A54C197 A541SS131T A54RA15 01KB A54MA723TA A54MA165TA5 A54D3SBA60F1 A54CS1VB20E XBA2C20TR0 A52D011W164 A52C096 A52C040 A52MPA2003C A52BR9011B A52M...

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