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Panasonic CS-SA18CKP, Service Manual

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Panasonic CS-SA18CKP Service Manual Download Page 1

 1 

Functions 

2

 2 

Product Specifications 

5

 3 

Dimensions 

7

 4 

Refrigeration Cycle Diagram 

9

 5 

Block Diagram 

10

 6 

Wiring Diagram 

11

 7 

Operation Details 

12

 8 

Installation 

22

 9 

2-way, 3-way Valve 

37

© Guangzhou Matsushita Air Conditioner Co., Ltd.
(GMAC) All rights reserved. Unauthorized copying
and distribution is a violation of law.

CS-SA18CKP
CU-SA18CKP5

 10 Disassembly of the parts 

44

 11 Trouble-shooting guide 

48

 12 Technical Data 

50

 13 Exploded View 

52

 14 Replacement Parts List 

53

 15 Exploded View 

54

 16 Replacement Parts List 

55

 17 ELECTRONIC CIRCUIT DIAGRAM 

56

Room Air Conditioners

CONTENTS

 Page 

Page

Order No: GMAC0303004C2

Summary of Contents for CS-SA18CKP

Page 1: ...ita Air Conditioner Co Ltd GMAC All rights reserved Unauthorized copying and distribution is a violation of law CS SA18CKP CU SA18CKP5 10 Disassembly of the parts 44 11 Trouble shooting guide 48 12 Technical Data 50 13 Exploded View 52 14 Replacement Parts List 53 15 Exploded View 54 16 Replacement Parts List 55 17 ELECTRONIC CIRCUIT DIAGRAM 56 Room Air Conditioners CONTENTS Page Page Order No GMA...

Page 2: ...um Speed Low Speed Automatic Speed Vertical Airflow Direction Control Auto Airflow Direction Wide Control Spot Control Airflow Direction Manual Control Room Temperature Setting Temperature Setting 16 to 30 Auto Operation C C Timer Operation Selection Stop Start Operation Control set the ON OFF Timer hourly later Set Cancel Timer Operation Set timer Cancel the set timer 2 CS SA18CKP CU SA18CKP5 ...

Page 3: ...an starts running when temperature of evaporator reaches 30 or above When temperature of evaporator is between 30 and 40 indoor fan will run at Super Low or Low speed When temperature of evaporator reaches 34 Warm Booting Operation ends C C C C High Med Low Auto Auto Fan Speed Indoor Fan Speed Controll Vertical airflow direction controlled by remote control Horizontal airflow direction can be adju...

Page 4: ...the temperature of evaporator declines to 49 When the temperature of evaporator reaches 65 compressor will stop C C C C C C C 4 way Valve Control If the unit is stopped during Heating Operation the 4 way valve will remain in heating mode operation mode for 5 minutes Outdoor Fan Operation Control Fan motor 4 poles 2 speeds Cool When the outdoor temperature is more than 31 the speed is at High When ...

Page 5: ... 1890 1940 Heating 1910 1960 Running Current A Cooling 8 7 8 6 Heating 8 8 8 7 EER W W Cooling 2 70 2 68 COP Heating 3 14 3 11 Starting Current A 39 Piping Connection Port Flare piping Inch Inch G half union 1 2 L half union 1 4 G 3 way valve 1 2 L 2 way valve 1 4 Piping Size Flare piping Inch Inch G gad side 1 2 L liquid side 1 4 G gas side 1 2 L liquid side 1 4 Drain Hose Inner diameter mm 16 Le...

Page 6: ...0 15 Dimensions mm 805 336 25 4 769 2 x 660 4 44 Refrigerant Control Device Capillary Tube Refrigeration Oil c c SUNISO 4GDID or ATMOS M60 or 56M Refrigerant R 22 g 1590 Thermostat Electronic Control Protection Device Inner Protector Capillary Length mm Cooling 560 Heating 405 Circulation L min Cooling 12 5 Heating 19 6 Inner dia mm Cooling 1 5 Heating 1 7 Air Filter P P Honeycomb Refrigerant Circ...

Page 7: ...3 Dimensions 7 CS SA18CKP CU SA18CKP5 ...

Page 8: ...8 CS SA18CKP CU SA18CKP5 ...

Page 9: ...4 Refrigeration Cycle Diagram 9 CS SA18CKP CU SA18CKP5 ...

Page 10: ...5 Block Diagram 10 CS SA18CKP CU SA18CKP5 ...

Page 11: ...6 Wiring Diagram 11 CS SA18CKP CU SA18CKP5 ...

Page 12: ...g Mode Operation the Time Delay Safety Control is available 7 Operation Details 7 1 Cooling Mode Operation When selecting the Cooling Mode Operation the unit will operate according to the setting by the Remote Control and the operation is as the following 3 min The compressor is ceased for 3 minutes to balance the pressure in the refrigeration cycle Protection of compressor 7 min The unit will aut...

Page 13: ...Time Graph for cooling Operation During Cooling Mode Operation use remote control to select Automatic Fan Speed Fan speed will be at the point between high speed and medium speed Deodorization control 13 CS SA18CKP CU SA18CKP5 ...

Page 14: ...uring Soft Dry Mode the fan of indoor unit will operate at super low speed Once soft Dry mode operation is turned off indoor fan compressor and outdoor fan will stop for 6 minutes During cooling mode operation if the compressor ceased it will not restart within 3 minutes Same as the denotation in Cooling Operation P 12 During Soft Dry Operation use remote control to select Auto Fan Speed mode Indo...

Page 15: ...Time Graph for soft dry operation 15 CS SA18CKP CU SA18CKP5 ...

Page 16: ...rol or power off it will not restart within 3 minutes When room temperature reaches the set temperature on the remote control compressor stops and will not restart within 4 minutes 3 minutes after the compressor stopped indoor fan will stop for 1 minute Then indoor fan will resume operation with the speed at super low Same as the denotation in Cooling Operation P 12 When temperature of indoor heat...

Page 17: ...ting mode operation When selecting automatic fan mode by remote control during heating mode operation the fan will operate at different speed under different conditions according to the temperature of indoor heat exchanger 17 CS SA18CKP CU SA18CKP5 ...

Page 18: ...ously 50 seconds deicing operation starts Overload Deicing Operation During heating operation if the accumulative stopping time of outdoor fan reaches 60 minutes deicing operation will start 1 minute after compressor starts Deicing operation ends under conditions below 1 After 12 minutes 2 Temperature of outdoor unit rises to 4 C Notes When deicing operation ends compressor will stop for 30 second...

Page 19: ...Time Graph for Normal Deicing Operation Time Graph for Overload Deicing 19 CS SA18CKP CU SA18CKP5 ...

Page 20: ...heating operation will immediately operate 4 After the operation mode has been determined the mode does not change However Soft Dry mode operation includes cooling mode operation 5 Room temperature adjustment 7 5 Indoor Fan Motor Control Automatic fan speed control When automatic fan speed set the available range for fan speed is from H to SLo Manual Fan Speed Control Basic fan speed can be manual...

Page 21: ... discharge vent is closed with airflow direction louver Spot Control Cooling Soft Dry The central vane is at 32 and the right and left vanes will be at 60 After 30 minutes of operation the three vanes will be at 32 C Heating The central vane is at 52 and the right and left vane will be at 110 when the set temperature is reached Wide Control Cooling Soft Dry The central vane and the right and left ...

Page 22: ...tacles blocking the air circulation A place where air circulation in the room is good A place where drainage can be easily done A place where noise prevention is taken into consideration Do not install the unit near the door way Ensure the spaces indicated by arrows from the wall ceiling fence or other obstacles Recommended installation height for indoor unit shall be at least 2 3m If an awning is...

Page 23: ...23 CS SA18CKP CU SA18CKP5 ...

Page 24: ...set For the embedded piping P 31 Liquid side 1 4 Specified torque wrenches Insulated drain hose 18N m Liquid side piping Insulation materials 55N m Gas side piping Spanner Half union 4 Connecting piping and cable to the outdoor unit Additional drain hose Specified torque wrenches Connecting cable 18N m Liquid side 1 Connecting the piping to the outdoor unit P 32 5 core wire 1 5mm2 55N m Gas side L...

Page 25: ...e height should be more than eye level 8 3 1 2 Outdoor unit If an awning is built over the unit to prevent direct sunlight or rain exposure be careful that heat radiation from the condenser is not restricted There should not be any animals or plants which could be affected by hot air discharged Ensure the spaces indicated by arrows from the wall ceiling fence or other obstacles 8 3 1 3 Piping leng...

Page 26: ...with Ø70mm hole core drill Line according to the arrows marked on the lower left and right side of the installation plate To drill a hole in the wall and install a sleeve for tube ass y Drill a Ø70mm hole sloping downward toward the outside of the wall Insert the sleeve for tube ass y through the hole Fix the bushing to the sleeve Extrude 15mm of the sleeve then cut Caution When the wall is horrow...

Page 27: ...s from cut edges of pipes Turn the pipe end down to avoid the metal powder entering the pipe Caution If burrs are not removed they may cause a gas leakage 8 4 1 3 Flaring the pipe Insert the flare nuts mounted on the connection ports of both indoor and outdoor unit onto the copper pipes Fit the copper pipe end into the bar of flare tool about 0 5 1 5mm higher see Fig A Flare the pipe ends Fig A 8 ...

Page 28: ...te Engage the two hooks of the rear top of the indoor unit with the upper edge of the installation plate Ensure the hooks are properly seated on the installation plate by moving it left and right 6 Connecting the piping to the indoor unit Align the center of the piping and sufficiently tighten the flare nut with fingers Finally tighten the flare nut with torque wrench until the wrench clicks When ...

Page 29: ...ut the drain hose Exchange the hose and cap 2 Insert the piping and connecting cable to indoor side through the hole 3 Insert the connecting cable into the indoor unit Do not connect the cable to the indoor unit Make a small loop with the cable for easy connection 29 CS SA18CKP CU SA18CKP5 ...

Page 30: ...n the center of the piping and sufficiently tighten the flare nut with fingers Finally tighten the flare nut with torque wrench until the wrench clicks When tightening the flare nut with torque wrench ensure the direction for tightening follows arrow on the wrench Model Pipe size Piping size Liquid Torque CS SA18CKP CU SA18CKP5 Liquid side 1 4 18N m Gas side 1 2 55N m 6 Set the piping and the conn...

Page 31: ... unit all the way to the left on the installation plate Refer to the section cut and flaring the piping in the directions for the outdoor unit see P 27 8 5 5 Pull the connecting cable into the indoor unit 8 5 6 Connecting the piping Refer to the section connecting the piping in the directions for the indoor unit Connecting the piping to the outdoor unit and checking the gas leakage 8 5 7 Connectin...

Page 32: ... 4 18N m Gas side 1 2 55N m Caution When connecting the piping always use a torque wrench Other tools may cause damage to the flare nut because of improper force 3 Ensure not to let the piping exposed to air 8 6 2 Connecting the cable 1 Remove the top cover from the unit by loosening the four screws 2 Remove the control board cover by loosening the screw 3 Connect the locally approved cable 1 5mm2...

Page 33: ...service port caps of the 2 way valve and the 3 way valve at specified torque with a torque wrench 7 Remove the valve caps of the 2 way valve and the 3 way valve to open using a hexagonal wrench 4mm 8 Mount valve caps onto the 2 way valve and the 3 way valve Be sure to check for leakage Caution If gauge needle does not move from 0 cmHg 0MPa to 76cmHg 0 1MPa in step 3 above take the following measur...

Page 34: ...louver to the horizontal position and then carry out by steps 3 and 2 in that order At this time check to sure that the fixing tabs on the top inside edge of the front grille are securely inserted into the respective slots 2 Checking the drainage Pour a glass of water into the drain train traystyroform Ensure water flow out from drain hose of indoor unit 3 Drainage control for outdoor unit If a dr...

Page 35: ...nnecting cable to the terminals of the indoor unit 8 8 3 Connect the cable to the indoor unit Connect the locally approved cable 1 5mm2 to the terminals on the control board individually according to the outdoor connection Ensure the colour of wires of outdoor unit and the terminal No are the same to the indoor s respectively Secure the cable onto the board with the holder clamper Both the unit an...

Page 36: ...re correct Be sure that both batteries are new Re attach the cover Slide the cover back into position 3 Operate the unit at cooling mode operation for 15 minutes or more 8 9 2 Evaluation of the performance 1 Operate the air conditioner for 15 minutes 2 Measure the temperature of the intake and discharge air 3 Ensure the difference between the intake temperature and the discharge temprature is more...

Page 37: ...ockwise clockwise Push pin Operation Open Open Closed Counter clockwise With valve cap With cap Pumping down Closed Open Open transfering clockwise counter clockwise Connected manifold gauge Evacuation Open Open Open Servicing With vacuum pump Charging Open Open Open servicing With charging cylinder Pressure check Open Servicing Open Open Connected manifold gauge Gas releasing Open Servicing Open ...

Page 38: ...AKE THIS PROCEDURE IN ORDER TO AVOID GAS LEAKAGE If air remain in the indoor unit and refrigeration pipes it will affect the compressor reduce to cooling capacity and could lead to a malfunction 5 Disconnect the charging hose from the vacuum pump and from the service port of the 3 way valve 6 Tighten the service port cap at a torque of 18 N m with a torque wrench 7 Remove the valve caps of the 2 w...

Page 39: ...er at the cooling cycle and stop it when the gauge indicates 0 MPa 0 kg cm2 G If the unit cannot be operated at the cooling condition weather is rather cool short the Pumping Down pins on the Main Control P C B Simply press the pumping down button if it is equipped So that the unit can be operated 7 Immediately set the 3 way valve to the closed position Do this quickly so that the gauge ends up in...

Page 40: ...h gas refrigerant from 3 way valve service port and then discharge the refrigerant until low side gas side gauge needle indicates 0 3 MPa 3 kg cm2 If air remain in the indoor unit and refrigeration pipes it will affect the compressor reduce to cooling capacity and could lead to a malfunction 7 Tighten the service port cap at a torque of 18 N m with a torque wrench 8 Remove the valve caps of the 2 ...

Page 41: ...arge set and discharge the refrigerant until the gauge indicates 0 05 MPa 0 5 kg cm2 G to 0 1 MPa 1 kg cm2 G If there is no air in the refrigeration cycle the pressure when the air conditioner is not running is higher than 0 1 MPa 1 kg cm2 G discharge the refrigerant until the gauge indicates 0 05 MPa 0 5 km cm2 G to 0 1 MPa 1 kg cm2 G If this is the case it will not be necessary to apply a evacua...

Page 42: ...ard 0 1 MPa 76 cmHg vacuum 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 Disconnect the charge hose from the vacuum pump Vacuum pump oil If the vacuum pump oil becomes dirty or depleted replenish as needed 9 5 Evacuation 42 CS SA18CKP CU SA18CKP5 ...

Page 43: ...r in the cooling cycle however one time is not sufficient wait approximately 1 minute and then repeat the procedure pumping down pin This is different from previous procedures Because you are charging with liquid refrigerant from the gas side absolutely do no attempt to charge with large amount of liquid refrigerant whileoperating the air conditioner 4 Immediately disconnect the charge hose from t...

Page 44: ...ntroller signal receiver and indicators can be seen See Fig 1 Removal procedure for the fan motor 1 Remove the connector CN MTR of fan motor and connector CN STM of step fan motor loosen the grounding wire yellow green and pull the sensor out from the socket See Fig 2 2 Remove the control board Loosen the upper left and right tabs and pull out the control board Refer to Fig 2 Fig 3 Fig 4 Fig 1 Fig...

Page 45: ...ove the fan motor Loosen the fan motor securing screw at the junction of the cross fan see Fig 5 Remove the special tab and pull the fan motor out see Fig 6 Fig 7 Fig 5 Fig 6 Fig 7 45 CS SA18CKP CU SA18CKP5 ...

Page 46: ...curing screw of the front grille pull the front grille down towards you 2 Loosen the bearing on the left side of the cross flow fan 3 Take off the securing tabs to the left of the heat exchanger Pull the heat exchanger forward left side Fig 10 The cross flow fan can be removed Fig 10 Fig 8 Fig 9 Fig 10 46 CS SA18CKP CU SA18CKP5 ...

Page 47: ...he display is chaotic or can not be adjusted Remove the back lid of the remote control and you will find the resetting terminals and shorten the two terminals using a screw driver to reset Fig 11 Fig 11 47 CS SA18CKP CU SA18CKP5 ...

Page 48: ...ation cycle Such problems include insufficient insulation problem with the power source malfunction of compressor or fan The normal outlet air temperature and pressure of the refrigeration cycle depends on various conditions the standard values for them are shown in the table to the right 11 Trouble shooting guide 48 CS SA18CKP CU SA18CKP5 ...

Page 49: ... current during operation becomes approximately 80 lower than the normal level Insufficient compressing of a compressor The discharge tube of the compressor becomes abnormally hot normally 70 90 C The difference between high pressure and low pressure becomes almost zero Electric current reaches a high level abnormally and the value exceeds the limit of an ammeter In some cases a breaker turns off ...

Page 50: ...12 Technical Data Thermostat characteristics CS SA18CKP CU SA18CKP5 50 CS SA18CKP CU SA18CKP5 ...

Page 51: ... Operating characteristics CS SA18CKPCU SA18CKP5 51 CS SA18CKP CU SA18CKP5 ...

Page 52: ...13 Exploded View CS SA18CKP 52 CS SA18CKP CU SA18CKP5 ...

Page 53: ...BOARD 1 CWH102068 19 TERMINAL BOARD COMPLETE 1 CWA28C2032 20 LEAD WIRE POWER 1 CWA20C2312 21 SENSOR COMPLETE 1 CWA50C2064 22 CONTROL PCB 1 CWA742300 23 RECEIVER 1 CWA742321 24 COVER CONTROL BOX 1 CWH131059 25 INDICATOR COMPLETE 1 CWE39C1029 26 HOLDER INDICATOR 1 CWD932085 27 LEAD WIRE INDICATOR 1 CWA67C3443 28 REMOTE CONTROL COMPLETE 1 CWA75C2392 29 FRONT GRILLE COMPLETE 1 CWE11C2821 30 COVER TERM...

Page 54: ...15 Exploded View CU SA18CKP5 54 CS SA18CKP CU SA18CKP5 ...

Page 55: ...ILLARY 1 CWT01C2784 18 STRAINER 1 CWB11025 19 SOUND PROOF PANEL 1 CWH151014 20 OVER LOAD PROTECTOR 1 CWA12262 21 TERMINAL COVER 1 CWH17015 22 NUT FOR TERMINAL COVER 1 CW7080300 23 CONTROL BOX COMPLETE 1 CWH14C3570 24 CONTROL BOARD 1 CWH10K1011 25 TERMINAL BOARD ASS Y 1 CWA28K1016 26 CAPACITOR COMPRESSOR 1 DS371506CPXF 27 HOLDER CAPACITOR 1 CWH30060 28 CAPACITOR FAN MOTOR 1 CWA312054 C 29 CONTROL P...

Page 56: ...17 ELECTRONIC CIRCUIT DIAGRAM SCHEMATIC DIAGRAM 1 4 CS SA18CKP CU SA18CKP5 G F E D C B A 1 2 3 4 5 56 CS SA18CKP CU SA18CKP5 ...

Page 57: ...SCHEMATIC DIAGRAM 2 4 CS SA18CKP CU SA18CKP5 6 7 8 9 10 11 57 CS SA18CKP CU SA18CKP5 ...

Page 58: ...SCHEMATIC DIAGRAM 3 4 CS SA18CKP CU SA18CKP5 11 12 13 14 15 16 58 CS SA18CKP CU SA18CKP5 ...

Page 59: ...SCHEMATIC DIAGRAM 4 4 CS SA18CKP CU SA18CKP5 17 18 19 20 21 REMOTE CONTROL 59 CS SA18CKP CU SA18CKP5 ...

Page 60: ...60 CS SA18CKP CU SA18CKP5 Printed in China ...

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