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Panasonic CS-E12SD3UAW Service Manual

Summary of CS-E12SD3UAW

  • Page 1

    © panasonic corporation 2016 order no: papamy1604052ce indoor unit outdoor unit cs-e9sd3uaw cs-e12sd3uaw cs-e18sd3uaw cu-e9sd3ua cu-e12sd3ua cu-e18sd3ua destination usa this service information is designed for experienced repair technicians only and is not designed for use by the general public. It ...

  • Page 2: Table of Contents

    2 table of contents page page 1. Safety precautions ............................................. 3 2. Specifications ..................................................... 5 3. Features ............................................................. 14 4. Location of controls and components .............

  • Page 3: 1. Safety Precautions

    3 1. Safety precautions read the following “safety precautions” carefully before installation. Electrical work must be installed by a licensed electrician. Be sure to use the correct rating of the power plug and main circuit for the model to be installed. The caution items stated here must be follow...

  • Page 4

    4 18. During installation, install the refrigerant piping properly before running the compressor. Operation of compressor without fixing refrigeration piping and valves at opened condition will cause suck-in of air, abnormal high pressure in refrigeration cycle and result in explosion, injury etc. 1...

  • Page 5: 2. Specifications

    5 2. Specifications model indoor cs-e9sd3uaw outdoor cu-e9sd3ua performance test condition ari power supply phase, hz single, 60 v 208 230 min. Mid. Max. Min. Mid. Max. Cooling capacity kw 1.20 2.64 3.00 1.20 2.64 3.00 btu/h 4100 9000 10200 4100 9000 10200 running current a - 3.6 - - 3.2 - input pow...

  • Page 6

    6 model indoor cs-e9sd3uaw outdoor cu-e9sd3ua compressor type hermetic motor / rotary motor type brushless (4-poles) output power 700 indoor fan type sirocco material gfz010a / gf20 motor type dc motor (8-poles) output power w 51 speed qlo cool rpm 880 heat rpm 800 lo cool rpm 940 heat rpm 880 me co...

  • Page 7

    7 model indoor cs-e9sd3uaw outdoor cu-e9sd3ua piping pipe diameter (liquid / gas) mm (inch) 6.35 (1/4) / 9.52 (3/8) standard length m (ft) 7.5 (24.6) length range (min - max) m (ft) 3 (9.8) ~ 20 (65.6) i/d & o/d height different m (ft) 15 (49.2) additional gas amount g/m (oz/ft) 20 (0.2) length for ...

  • Page 8

    8 model indoor cs-e12sd3uaw outdoor cu-e12sd3ua performance test condition ari power supply phase, hz single, 60 v 208 230 min. Mid. Max. Min. Mid. Max. Cooling capacity kw 1.20 3.36 3.90 1.20 3.36 3.90 btu/h 4100 11500 13300 4100 4100 13300 running current a - 4.7 - - 4.2 - input power w 250 920 1....

  • Page 9

    9 model indoor cs-e12sd3uaw outdoor cu-e12sd3ua compressor type hermetic motor / rotary motor type brushless (4-poles) output power 700 indoor fan type sirocco material gfz010a / gf20 motor type dc motor (8-poles) output power w 51 speed qlo cool rpm 880 heat rpm 800 lo cool rpm 940 heat rpm 880 me ...

  • Page 10

    10 model indoor cs-e12sd3uaw outdoor cu-e12sd3ua piping pipe diameter (liquid / gas) mm (inch) 6.35 (1/4) / 12.70 (1/2) standard length m (ft) 7.5 (24.6) length range (min - max) m (ft) 3 (9.8) ~ 20 (65.6) i/d & o/d height different m (ft) 15 (49.2) additional gas amount g/m (oz/ft) 20 (0.2) length ...

  • Page 11

    11 model indoor cs-e18sd3uaw outdoor cu-e18sd3ua performance test condition ari power supply phase, hz single, 60 v 208 230 min. Mid. Max. Min. Mid. Max. Cooling capacity kw 1.70 5.04 5.70 1.70 5.04 5.70 btu/h 5800 17200 19400 5800 17200 19400 running current a - 8.5 - - 7.6 - input power w 430 1.58...

  • Page 12

    12 model indoor cs-e18sd3uaw outdoor cu-e18sd3ua compressor type hermetic motor / rotary motor type brushless (4-poles) output power 1.70k indoor fan type sirocco material gfz010a / gf20 motor type dc motor (8-poles) output power w 51 speed qlo cool rpm 920 heat rpm 920 lo cool rpm 980 heat rpm 1000...

  • Page 13

    13 model indoor cs-e18sd3uaw outdoor cu-e18sd3ua piping pipe diameter (liquid / gas) mm (inch) 6.35 (1/4) / 12.70 (1/2) standard length m (ft) 7.5 (24.6) length range (min - max) m (ft) 3 (9.8) ~ 30.5 (100.0) i/d & o/d height different m (ft) 15 (49.2) additional gas amount g/m (oz/ft) 25 (0.3) leng...

  • Page 14: 3. Features

    14 3. Features inverter technology o wider output power range o energy saving o quick cooling o quick heating o more precise temperature control environment protection o non-ozone depletion substances refrigerant (r410a) long installation piping o long piping up to 20 meter (e9sd3ua/e12sd3ua) o long...

  • Page 15

    15 4. Location of controls and components 4.1 indoor unit air inlet air outlet 4.2 outdoor unit air inlet (rear) air inlet (side) air outlet 4.3 remote control check timer setting fan speed selection quiet operation transmitter operation mode powerful operation off/on temperature setting remote cont...

  • Page 16: 5. Dimensions

    16 5. Dimensions 5.1 indoor unit (air outlet duct flange) 692 (27 - 1/4) 145 (5 - 1 1/16) (air outlet duct flange) 96 (3 - 25/32) 27 (1 - 1/16) 160 x 4 = 640 5 - Ø 3.1 hole 26 (1 - 1/32) 750 (29 - 17/32) 824 (32 - 7/16) 904 (35 - 9/16) 640 (25 - 3/16) 564 (22 - 3/16) 194 ( 7 - 5/8) air filter (air i...

  • Page 17

    17 5.2 outdoor unit 5.2.1 cu-e9sd3ua cu-e12sd3ua unit : mm/inch 24.4 (15/16) (104.7) (4-3/32) 780 (30-23/32) 104.9 (4-1/8) 67.6 (2-21/32) 60.5 (2-3/8) 34.5 (1-11/32) 155 (6-3/32) 84.8 (3-5/16) 570 (22-7/16) 10 cm 100 cm 10 cm 2-way valve at liquid side (high pressure) 3-way valve at gas side (low pr...

  • Page 18

    18 6. Refrigeration cycle diagram 6.1 cs-e9sd3uaw cu-e9sd3ua indoor outdoor intake temp. Sensor pipe (inlet) temp. Sensor 2 pipe temp. Sensor 1 air temp. Sensor pipe temp. Sensor liquid side 2-way valve 3-way valve gas side heat exchanger (evaporator) cooling heating compressor condenser process tub...

  • Page 19

    19 6.2 cs-e12sd3uaw cu-e12sd3ua indoor outdoor intake temp. Sensor pipe (inlet) temp. Sensor 2 pipe temp. Sensor 1 air temp. Sensor pipe temp. Sensor liquid side 2-way valve 3-way valve gas side heat exchanger (evaporator) cooling heating compressor condenser strainer expansion valve 4-ways valve di...

  • Page 20

    20 6.3 cs-e18sd3uaw cu-e18sd3ua air temp. Sensor pipe temp. Sensor distributor indoor outdoor intake temp. Sensor pipe (inlet) temp. Sensor 2 pipe temp. Sensor 1 liquid side 2-way valve 3-way valve gas side heat exchanger (evaporator) cooling heating compressor 4-ways valve compressor temp. Sensor d...

  • Page 21: 7. Block Diagram

    21 7. Block diagram 7.1 cs-e9sd3uaw cu-e9sd3ua cs-e12sd3uaw cu-e12sd3ua compressor ms 3 ~ f a n mot o r fuse103 q1 fuse102 fuse101 single phase power suppl y 1 Ø 208/230v 60hz noise filt er db101 db102 db103 ntc ptc ptc ptc2 ptc1 th2 sc m react o r exp ansion va lv e 4-w a ys va lv e c101 ct102 u ry...

  • Page 22

    22 7.2 cs-e18sd3uaw cu-e18sd3ua fuse fm dm sc indoor unit outdoor unit 1 2 3 compressor fuse1 fuse2 p n u v w fuse3 single phase power suppl y ac208 - 230v 60hz noise filt er db3 db1 db2 ntc ptc2 ptc1 th2 ntc th1 q1 sc react o r 4-w a ys v a l v e ct400 ry-c cr3 r y -pwr2 r y -ac l1 l2 ry-h ot m ms ...

  • Page 23

    23 8. Wiring connection diagram 8.1 indoor unit m m 1 1 2 3 terminal board y/g drain pump cn-drmtr1 (blue) noise filter circuit communication circuit cn-fm (white) cn-ac (white) cn-disp2 (white) cn-disp1 (yellow) cn-t2 (white) cn-disp (white) 1 1 2 3 4 br r o y p b v gr bl 5 6 7 8 1 2 3 4 5 6 7 8 1 ...

  • Page 24

    24 8.2 outdoor unit 8.2.1 cu-e9sd3ua cu-e12sd3ua t˚ t˚ t˚ m m fan motor grn grn 1 p n u v w q1 4 7 blk blk l2 to indoor unit single phase power supply l1 ylw/grn 1 (black) 2 (white) 3 (red) wht fg1 (grn) cn-dcfm (wht) ljp101 (grn) fuse103 t3.15a l250v electronic controller wht red data (red) termina...

  • Page 25

    25 8.2.2 cu-e18sd3ua t˚ t˚ t˚ noise filter circuit electronic controller (noise filter) fg1 (green) cn-wht (white) ac-wht (white) ac-blk (black) fuse2 (t3.15a l250v) l2-1 (gray) gry gry to indoor unit cn-blk (black) blk wht cn-com (yellow) cn-com (yellow) wht wht wht wht 1 4 1 2 reactor 1 blk blk q1...

  • Page 26

    26 9. Electronic circuit diagram 9.1 indoor unit sensor (thermistor) characteristics 70 60 50 40 30 20 10 0 14 32 50 temperature ( o f) resistance (kΩ) 68 86 104 122 1 2 1 2 pipe temp. Sensor intake air temp. Sensor m m 1 1 2 3 terminal board y/g drain pump cn-drmtr1 (blue) noise filter circuit comm...

  • Page 27

    27 9.2 outdoor unit 9.2.1 cu-e9sd3ua cu-e12sd3ua sensor (thermistor) characteristics 70 60 50 40 30 20 10 0 14 32 50 temperature ( o f) resistance (kΩ) 68 86 104 122 1 2 1 2 outdoor air sensor outdoor heat exchanger sensor compressor temp. Sensor (thermistor) characteristics 70 60 50 40 30 20 10 0 6...

  • Page 28

    28 9.2.2 cu-e18sd3ua sensor (thermistor) characteristics 70 60 50 40 30 20 10 0 14 32 50 temperature ( o f) resistance (kΩ) 68 86 104 122 1 2 1 2 outdoor air sensor outdoor heat exchanger sensor compressor temp. Sensor (thermistor) characteristics 70 60 50 40 30 20 10 0 68 104 140 temperature ( o f)...

  • Page 29: 10.  Printed Circuit Board

    29 10. Printed circuit board 10.1 indoor unit 10.1.1 main printed circuit board cn-t2 cn-fm cn-th cn-t1 cn-ac cn-drmtr1 cn-disp cn-ht cn-fsw cn-cnt.

  • Page 30

    30 10.2 outdoor unit 10.2.1 main printed circuit board 10.2.1.1 cu-e9sd3ua cu-e12sd3ua cn-th cn-hot cn-tank cn-dcfm ac-wht ac-blk data power transistor (ipm) current transformer (ct).

  • Page 31

    31 10.2.1.2 cu-e18sd3ua cn-hot cn-th1 ac-wht ac-blk cn-ev cn-tank cn-fm current transformer (ct) power transistor (ipm) cn-com.

  • Page 32

    32 10.2.2 cpu printed circuit board 10.2.2.1 cu-e9sd3ua cu-e12sd3ua cn1 cn2 cn3 10.2.3 noise filter printed circuit board 10.2.3.1 cu-e18sd3ua acl1 (black) acn1 (white) cn-com.

  • Page 33: 11. Installation

    33 11. Installation instruction important (only for e9sd3uaw and e12sd3uaw) this product has been designed and manufactured to meet energy star ® criteria for energy efficiency when matched with appropriate coil components. However, proper refrigerant charge and proper air flow are critical to achiv...

  • Page 34

    34 ■ other items to be prepared (locally purchased) product name remarks rigid pvc pipe vp20 (outer diameter ø1 1/32" (ø26); also sockets, elbows and other parts as necessary adhesive pvc adhesive insulation for refrigerant piping insulation: foamed polyethylene with a thickness of 5/16" (8 mm) or m...

  • Page 35

    35 11.1 indoor unit 11.1.1 selecting the installation location take into consideration the following contents when creating the blueprint. ■ indoor unit installation location do not install the unit in excessive oil fume area such as kitchen, workshop and etc. The location should be strong enough to...

  • Page 36

    36 required minimum space for installation and service flange for air outlet duct 32 7/16" ( 824) (suspension bolt pitch) inspection access 17 23/32 " x 17 23/32 " ( 450 x 450) electrical component box refrigerant tubing min. 25 19/32 " ( 650) or more min. 7 7/8" ( 200) or more 22 7 /32 " ( 564) min...

  • Page 37

    37 in case of bottom intake 1 remove the frame filter assy as shown in diagram 1 2 remove cover plate as shown in diagram 1 3 fix frame filter assy as shown in diagram 2 4 fix cover plate as shown in diagram 2 with the dummy hole downward. 1 2 dummy hole dummy hole air intake air intake frame filter...

  • Page 38

    38 installing an intake and discharge duct type ensure the range of unit external static pressure is not exceeded. Refer technical manual for the range of external static pressure setting. Connect the duct as shown. When attaching duct to the intake side, remove the product filter frame assy and rep...

  • Page 39

    39 mounting remote controller receiver install the remote controller receiver cable at least 1 31/32" (50 mm) away from electric wires of other appliances to avoid miss-operation (electromagnetic noise). 1 remove the bottom case. Insert the driver and slightly turn. Bottom case flat-blade screwdrive...

  • Page 40

    40 connect the indoor unit and the remote control receiver 5 . (refer to the illustration.) fix the green wire from receiver cable 8 to the grounding location provided inside control board. Remote control receiver 5 receiver cable 8 control box 11.1.4 connecting the drain piping lay the drain piping...

  • Page 41

    41 11.1.6 connect the cable to the indoor unit remove control box cover. Remove the plugs. Fix the conduit connections to the knockout holes together with lock nuts, then secure them against the control box side panel. Receiver cable wires 8 must pass through the upper conduit hole. Make sure the re...

  • Page 42

    42 11.1.6.1 wire stripping and connecting requirement conductor over inserted conductor fully inserted conductor not fully inserted 7/32" (5 mm) or more indoor/outdoor connection terminal board (gap between wires) accept prohibited prohibited wire stripping no loose strand when inserted 13/32" ± 1/3...

  • Page 43

    43 11.2 outdoor unit 11.2.1 select the best location 11.2.2 install the outdoor unit after selecting the best location, start installation to indoor/outdoor unit installation diagram. 1 fix the unit on concrete or rigid frame firmly and horizontally with a bolt nut (ø 13/32" (ø10 mm)). 2 when instal...

  • Page 44

    44 11.2.4 evacuation of the equipment when installing an air conditioner, be sure to evacuate the air inside the indoor unit and pipes in the following procedure. Gas side liquid side outdoor unit two-way valve three-way valve indoor unit vacuum pump close close 1 connect a charging hose with a push...

  • Page 45

    45 11.2.5 connect the cable to the outdoor unit for model e9sd3uaw, e12sd3uaw 1 remove top panel. 2 remove control board cover (resin and metal). 3 remove plugs. 4 fix the conduit connectors to the knockout holes with lock-nuts, then secure them against the side panel. 5 all wires pass through condu...

  • Page 46

    46 for model e18sd3uaw 1 remove control board cover (resin and metal). 2 remove particular plate. 3 remove plugs. 4 fix the conduit connectors to the knockout holes with lock-nuts, then secure them against the side panel. 5 all wires pass through conduits & particular plate’s opening hole. 6 connect...

  • Page 47

    47 11.2.6 piping insulation 1 please carry out insulation at pipe connection portion as mentioned in indoor/outdoor unit installation diagram. Please wrap the insulated piping end to prevent water from going inside the piping. 2 if drain hose or connecting piping is in the room (where dew may form),...

  • Page 48: 12.  Operation and Control

    48 12. Operation and control 12.1 basic function inverter control, which equipped with a microcomputer in determining the most suitable operating mode as time passes, automatically adjusts output power for maximum comfort always. In order to achieve the suitable operating mode, the microcomputer mai...

  • Page 49

    49 12.1.4 heating operation 12.1.4.1 thermostat control compressor is off when intake air temperature - internal setting temperate > +3.6°f. Compressor is on after waiting for 3 minutes, if the intake air temperature - internal setting temperature compressor off point. 12.1.5 automatic operation thi...

  • Page 50

    50 the indoor fan will operate according to pattern below. Fan speed a b c d e f g h a b [1 pattern : 10 s] higher medium lower [heating] according to indoor pipe temperature, automatic heating fan speed is determined as follows. Indoor pipe temp. Off rpm reduced rpm maintain rpm increased 102ºf 95º...

  • Page 51

    51 12.2 quiet operation (cooling mode/cooling area of soft dry mode) a. Purpose to provide quiet cooling operation compare to normal operation. B. Control condition a. Quiet operation start condition when “quiet” button at remote control is pressed. Quiet led illuminates. B. Quiet operation stop con...

  • Page 52

    52 12.3 powerful mode operation when the powerful mode is selected, the internal setting temperature will shift higher up to +10.8°f (for heating) or lower up to 7.2°f (for cooling/soft dry) than remote control setting temperature for 20 minutes to achieve the setting temperature quickly. 12.4 timer...

  • Page 53

    53 12.7 electric heater control 1 starting condition a) when all condition (1+2+3+4+5+6+7) are fulfilled. 1 operation on 2 indoor heating mode 3 thermostat on 4 temperature different control when air conditioning is switched on (remote controller setting - intake air temperature) temp difference 7.2...

  • Page 54

    54 12.8 electric heater control 2 during error happened, air conditioning unit will stop operation, timer led will blink and indoor vane closed. Electric heater can be switch on when fulfill the starting condition as follow except 2 errors. O h14 (indoor intake air temperature sensor abnormality) o ...

  • Page 55: 13. Protection

    55 13. Protection control 13.1 protection control for all operations 13.1.1 restart control (time delay safety control) the compressor will not turn on within 3 minutes from the moment operation stops, although the unit is turned on again by pressing off/on button at remote control within this perio...

  • Page 56

    56 13.1.4 ipm (power transistor) prevention control overheating prevention control 1 when the ipm temperature rises to 248°f, compressor operation will stop immediately. 2 compressor operation restarts after three minutes the temperature decreases to 230°f. Dc peak current control 1 when electric cu...

  • Page 57

    57 13.2.2 cooling overload control i. Pipe temperature limitation/restriction detects the outdoor pipe temperature and carry out below restriction/limitation (limit the compressor operation frequency) the compressor stop if outdoor pipe temperature exceeds 145.4°f. If the compressor stops 4 times in...

  • Page 58

    58 13.3 protection control for heating operation 13.3.1 intake air temperature control compressor will operate at maximum frequency if below conditions occur: 1 when the indoor intake air temperature is 86°f or above. 13.3.2 outdoor air temperature control the maximum current value is regulated when...

  • Page 59

    59 13.3.7 pump down operation by cn-s a convenience method to activate pump down operation. Control start condition: o during power standby condition, short cn-s continuously between 1 second and 10 seconds. Control stop condition: o 480 seconds after pump down operation starts. O cn-s is shorted ag...

  • Page 60: 14. Servicing

    60 14. Servicing mode 14.1 test run operation (for pump down/servicing purpose) the test run operation will be activated by short-circuiting cn-s (pin 1 & 2) at outdoor unit pcb after power supplied to outdoor unit terminal 1 and 2. The unit forced to run rated frequency cooling operation mode..

  • Page 61

    61 14.2 auto off/on button auto off/on button pressed 5 sec 3 x p e e b 2 x p e e b p e e b c e s 5 c e s 5 auto operation test run operation (forced cooling operation) test run operation (forced heating operation) p o t s p o t s n o i t a r e p o g n il o o c l a m r o n p o t s auto off/on button...

  • Page 62

    62 14.3 cooling only operation (single connection only, multi connection please refer to multi outdoor manual) 14.3.1 how to activate and deactivate cooling only operation auto sw is pressed 5s emergency operation pit pit ac reset code ac reset code ac reset code ac reset code ac reset code check co...

  • Page 63

    63 14.4 remote controller room temperature thermoshift control 14.4.1 purpose to prevent not enough or over supply of cooling and heating capacity by adjusting the room temperature thermoshift by using remote controller. Temperature can be adjusted are -3°c (-5.4°f), -2°c (-3.6°f), -1°c (-1.8°f), 0°...

  • Page 64

    64 cooling or dry mode (using remocon function 59) normal display mode press sw (t 0secs) when sw pressed continuously for t 5secs to enter service zone & press sw’s to choose function 59 (shift 0°c) range = -3°c/-2°c/-1°c/0°c/+1°c/+2°c/+3°c transmit shift code timer up down button shift -3°c shift ...

  • Page 65

    65 filter cleaning enable/disable selection normal display mode transmit “enable or disable” code control disable control enable press sw to enter customer zone & press sw’s to choose function 7 1 press sw, special setting is immediately cancelled and normal mode starts. 2 if no sw is pressed for 30...

  • Page 66

    66 auto restart enable/disable selection normal display mode transmit “enable or disable” code control disable control enable press sw to enter customer zone & press sw’s to choose function 10 1 press sw, special setting is immediately cancelled and normal mode starts. 2 if no sw is pressed for 30se...

  • Page 67: 15. Troubleshooting

    67 15. Troubleshooting guide 15.1 refrigeration cycle system in order to diagnose malfunctions, make sure that there are no electrical problems before inspecting the refrigeration cycle. Such problems include insufficient insulation, problem with the power source, malfunction of a compressor and a f...

  • Page 68

    68 15.2 relationship between the condition of the air conditioner and pressure and electric current condition of the air conditioner cooling mode heating mode low pressure high pressure electric current during operation low pressure high pressure electric current during operation insufficient refrig...

  • Page 69

    69 15.3 breakdown self diagnosis function 15.3.1 self diagnosis function (three digits alphanumeric code) once abnormality has occurred during operation, the unit will stop its operation, and off/on operation led off. Off indicator does not shown on remote control display. In operation after breakdo...

  • Page 70

    70 15.4 error codes table diagnosis display abnormality / protection control abnormality judgment emergency operation primary location to verify h00 no abnormality detected ─ normal operation ─ h11 indoor/outdoor abnormal communication > 1 min. After starting operation indoor fan operation only inte...

  • Page 71

    71 diagnosis display abnormality / protection control abnormality judgment emergency operation primary location to verify f98 total running current protection 3 times occurrence within 20 minutes ─ excess refrigerant improper heat radiation f99 outdoor direct current (dc) peak detection 7 times occu...

  • Page 72

    72 15.5 self-diagnosis method 15.5.1 h11 (indoor/outdoor abnormal communication) malfunction decision conditions during startup and operation of cooling and heating, the data received from outdoor unit in indoor unit signal transmission is checked whether it is normal. Malfunction caused faulty indo...

  • Page 73

    73 15.5.2 h12 (indoor/outdoor capacity rank mismatched) malfunction decision conditions during startup, error code appears when different types of indoor and outdoor units are interconnected. Malfunction caused wrong models interconnected. Wrong indoor unit or outdoor unit pcbs mounted. Indoor unit ...

  • Page 74

    74 15.5.3 h14 (indoor intake air temperature sensor abnormality) malfunction decision conditions during startup and operation of cooling and heating, the temperatures detected by the indoor intake air temperature sensor are used to determine sensor errors. Malfunction caused faulty connector connect...

  • Page 75

    75 15.5.4 h15 (compressor temperature sensor abnormality) malfunction decision conditions during startup and operation of cooling and heating, the temperatures detected by the outdoor compressor temperature sensor are used to determine sensor errors. Malfunction caused faulty connector connection. F...

  • Page 76

    76 15.5.5 h16 (outdoor current transformer) malfunction decision conditions an input current, detected by current transformer ct, is below threshold value when the compressor is operating at certain frequency value for 3 minutes. Malfunction caused lack of gas broken ct (current transformer) broken ...

  • Page 77

    77 15.5.6 h19 (indoor fan motor – dc motor mechanism locked) malfunction decision conditions the rotation speed detected by the hall ic during fan motor operation is used to determine abnormal fan motor (feedback of rotation > 2550 rpm or malfunction caused operation stops due to short circuit insid...

  • Page 78

    78 15.5.7 h23 (indoor pipe temperature sensor abnormality) malfunction decision conditions during startup and operation of cooling and heating, the temperatures detected by the indoor heat exchanger temperature sensor are used to determine sensor errors. Malfunction caused faulty connector connectio...

  • Page 79

    79 15.5.8 h24 (indoor pipe temperature sensor 2 abnormality) malfunction decision conditions during startup and operation of cooling and heating, the temperatures detected by the indoor heat exchanger temperature sensor 2 are used to determine sensor errors. Malfunction caused faulty connector conne...

  • Page 80

    80 15.5.9 h27 (outdoor air temperature sensor abnormality) malfunction decision conditions during startup and operation of cooling and heating, the temperatures detected by the outdoor air temperature sensor are used to determine sensor errors. Malfunction caused faulty connector connection. Faulty ...

  • Page 81

    81 15.5.10 h28 (outdoor pipe temperature sensor abnormality) malfunction decision conditions during startup and operation of cooling and heating, the temperatures detected by the outdoor pipe temperature sensor are used to determine sensor errors. Malfunction caused faulty connector connection. Faul...

  • Page 82

    82 15.5.11 h30 (compressor discharge temperature sensor abnormality) malfunction decision conditions during startup and operation of cooling and heating, the temperatures detected by the outdoor discharge pipe temperature sensor are used to determine sensor errors. Malfunction caused faulty connecto...

  • Page 83

    83 15.5.12 h33 (unspecified voltage between indoor and outdoor) malfunction decision conditions the supply power is detected for its requirement by the indoor/outdoor transmission. Malfunction caused wrong models interconnected. Wrong indoor unit and outdoor unit pcbs used. Indoor unit or outdoor un...

  • Page 84

    84 15.5.13 h97 (outdoor fan motor – dc motor mechanism locked) malfunction decision conditions the rotation speed detected by the hall ic during fan motor operation is used to determine abnormal fan motor. Malfunction caused operation stops due to short circuit inside the fan motor winding. Operatio...

  • Page 85

    85 15.5.14 h98 (error code stored in memory and no alarm is triggered / no timer led flashing) malfunction decision conditions indoor high pressure is detected when indoor heat exchanger is detecting very high temperature when the unit is operating in heating operation. Phenomena: unit is stopping a...

  • Page 86

    86 15.5.15 h99 (indoor freeze prevention protection: cooling or soft dry) error code will not display (no timer led blinking) but store in eeprom malfunction decision conditions freeze prevention control takes place (when indoor pipe temperature is lower than 35.6°f) malfunction caused air short cir...

  • Page 87

    87 15.5.16 f11 (4-way valve switching failure) malfunction decision conditions when indoor heat exchanger is cold during heating (except deice) or when indoor heat exchanger is hot during cooling and compressor operating, the 4-way valve is detected as malfunction. Malfunction caused indoor heat exc...

  • Page 88

    88 15.5.17 f90 (power factor correction protection) malfunction decision conditions to maintain dc voltage level supply to power transistor. To detect high dc voltage level after rectification. Malfunction caused during startup and operation of cooling and heating, when power factor correction (pfc)...

  • Page 89

    89 15.5.18 f91 (refrigeration cycle abnormality) malfunction decision conditions the input current is low while the compressor is running at higher than the setting frequency. Malfunction caused lack of gas. 3-way valve close. Troubleshooting when f91 indication happens check 3 way valve 3-way valve...

  • Page 90

    90 15.5.19 f93 (compressor rotation failure) malfunction decision conditions a compressor rotation failure is detected by checking the compressor running condition through the position detection circuit. Malfunction caused compressor terminal disconnect faulty outdoor pcb faulty compressor troublesh...

  • Page 91

    91 15.5.20 f95 (outdoor high pressure protection: cooling or soft dry) malfunction decision conditions during operation of cooling or soft dry, when outdoor unit heat exchanger high temperature data is detected by the outdoor unit heat exchanger thermistor. Malfunction caused outdoor heat exchanger ...

  • Page 92

    92 15.5.21 f96 (ipm overheating) malfunction decision conditions during operating of cooling and heating, when ipm temperature data (212°f) is detected by the ipm temperature sensor. Multi models only o compressor overheating: during operation of cooling and heating, when the compressor ol is activa...

  • Page 93

    93 15.5.22 f97 (compressor overheating) malfunction decision conditions during operation of cooling and heating, when compressor tank temperature data (233.6°f) is detected by the compressor tank temperature sensor. Malfunction caused faulty compressor tank temperature sensor 2/3 way valve closed re...

  • Page 94

    94 15.5.23 f98 (input over current detection) malfunction decision conditions during operation of cooling and heating, when an input over-current (x value in total running current control) is detected by checking the input current value being detected by current transformer (ct) with the compressor ...

  • Page 95

    95 15.5.24 f99 (dc peak detection) malfunction decision conditions during startup and operation of cooling and heating, when inverter dc peak data is received by the outdoor internal dc peak sensing circuitry. Malfunction caused dc current peak due to compressor failure. Dc current peak due to defec...

  • Page 96

    96 warning 16. Disassembly and assembly instructions high voltage are generated in the electrical parts area by the capacitor. Ensure that the capacitor has discharged sufficiently before proceeding with repair work. Failure to heed this caution may result in electric shocks. 16.1 indoor electronic ...

  • Page 97

    97 16.1.3 to remove fan motor and blower fan 1 detach the upper and inner casing 2 disengage the 4 catches (2 each on the left and right) on the air guide. Air guide (upper) air guide (bottom) air guide (upper) air guide (bottom) catches 3 unscrew the 2 screws on the fan motor bracket and detach fan...

  • Page 98

    98 2 unscrew 5 screws on the evaporator and remove 2 sensor from holder and remove evaporator from the unit. Remove screw remove sensor 3 unscrew 4 screws, 1 nut and 1 spring clip on the drain motor bracket and remove drain motor from unit. Remove nut spring clip remove screw 4 unscrew 3 screws on t...

  • Page 99

    99 16.2 outdoor electronic controller removal procedure 16.2.1 cu-e9sd3ua cu-e12sd3ua caution! When handling electronic controller, be careful of electrostatic discharge. 1 remove the 3 screws of the top panel. Fig. 1 2 remove the 6 screws of the front panel. Fig. 2 3 remove the screw of the termina...

  • Page 100

    100 16.2.2 cu-e18sd3ua caution! When handling electronic controller, be careful of electrostatic discharge. 1 remove the 8 screws of the top panel. Fig. 1 2 remove the 8 screws of the front panel. Fig. 2 3 remove the top cover of the electronic controller. Fig. 3 4 remove the control board. Fig. 4 5...

  • Page 101: 17. Technical

    101 17. Technical data 17.1 technical data provided are based on the air conditioner running under free frequency. 17.1.1 cool mode performance data unit setting: standard piping length, hi fan, cool mode at 60.8°f voltage: 208v/230v 17.1.1.1 cs-e9sd3uaw/cu-e9sd3ua indoor (°c/°f) outdoor db (°c/°f) ...

  • Page 102

    102 17.1.1.3 cs-e18sd3uaw/cu-e18sd3ua indoor (°c/°f) outdoor db (°c/°f) db wb -20 (-4) -10 (14) 0 (32) 5 (41) tc shc ip tc shc ip tc shc ip tc shc ip 27 (80.6) 19 (66.2) 6210 5142 1137 6203 5137 1123 6196 5229 1090 6179 5113 1080 22 (71.6) 7123 4203 993 7116 4199 981 6784 4107 1138 6347 3863 1135 23...

  • Page 103

    103 17.1.2 heat mode performance data unit setting: standard piping length, hi fan, heat mode at 86°f voltage: 208v/230v 17.1.2.1 cs-e9sd3uaw/cu-e9sd3ua indoor (°c/°f) outdoor wb (°c/°f) db -20 (-4) -8.3 (17.06) 1.7 (35.06) 8.3 (46.94) 12 (53.6) 23.9 (75.02) tc ip tc ip tc ip tc ip tc ip tc ip 24 (7...

  • Page 104

    104 17.2 technical data provided are based on the air conditioner running under rated frequency. 17.2.1 cool mode performance data unit setting: standard piping length, hi fan, cool mode at 60.8°f voltage: 208v/230v 17.2.1.1 cs-e9sd3uaw/cu-e9sd3ua indoor (°c/°f) outdoor db (°c/°f) db wb -20 (-4) -10...

  • Page 105

    105 17.2.1.3 cs-e18sd3uaw/cu-e18sd3ua indoor (°c/°f) outdoor db (°c/°f) db wb -20 (-4) -10 (14) 0 (32) 5 (41) tc shc ip tc shc ip tc shc ip tc shc ip 27 (80.6) 19 (66.2) 6210 5255 1137 6203 5250 1123 6196 5344 1090 6179 5226 1080 22 (71.6) 7123 4295 993 7116 4291 981 6784 4198 1138 6327 3936 1135 23...

  • Page 106

    106 17.2.2 heat mode performance data unit setting: standard piping length, hi fan, heat mode at 86°f voltage: 208v/230v 17.2.2.1 cs-e9sd3uaw/cu-e9sd3ua indoor (°c/°f) outdoor wb (°c/°f) db -20 (-4) -8.3 (17.06) 1.7 (35.06) 8.3 (46.94) 12 (53.6) 23.9 (75.02) tc ip tc ip tc ip tc ip tc ip tc ip 24 (7...

  • Page 107

    107 17.3 fan performance 17.3.1 cs-e9sd3uaw cu-e9sd3ua test report rpm static pressure (pa) (inch h2o) airflow (m 3 /min) (ft 3 /min) 1500 -0.1 (-0.0004) 18.3 (646) 7.7 (0.0309) 17.7 (625) 28.4 (0.1141) 16.1 (569) 44.9 (0.1804) 14.6 (516) 59.0 (0.2371) 13.2 (466) 70.3 (0.2825) 12.0 (424) 1300 -0.1 (...

  • Page 108

    108 17.3.2 cs-e12sd3uaw cu-e12sd3ua test report rpm static pressure (pa) (inch h2o) airflow (m 3 /min) (ft 3 /min) 1550 -0.1 (-0.0004) 18.2 (643) 7.7 (0.0309) 17.7 (625) 28.4 (0.1141) 16.1 (569) 44.9 (0.1804) 14.7 (519) 59.0 (0.2371) 13.4 (473) 70.3 (0.2825) 12.2 (431) 1300 -0.1 (-0.0004) 15.6 (551)...

  • Page 109

    109 17.3.3 cs-e18sd3uaw cu-e18sd3ua test report rpm static pressure (pa) (inch h2o) airflow (m 3 /min) (ft 3 /min) 1650 -0.1 (-0.0004) 19.7 (696) 70.7 (0.2841) 14.1 (498) 86.6 (0.3480) 12.6 (445) 98.5 (0.3958) 11.1 (392) 108.2 (0.4348) 9.8 (346) 114.9 (0.4617) 8.8 (311) 1480 -0.1 (-0.0004) 17.2 (607...

  • Page 110: 18. Service

    110 18. Service data service data provided are based on the air conditioner running under rated frequency during forced cooling / forced heating mode. 18.1 cool mode outdoor air temperature characteristic 18.1.1 cs-e9sd3uaw cu-e9sd3ua condition indoor room temperature: 80.1°f dry bulb/66.9°f wet bul...

  • Page 111

    111 18.1.2 cs-e12sd3uaw cu-e12sd3ua condition indoor room temperature: 80.1°f dry bulb/66.9°f wet bulb unit setting: standard piping length, forced cooling at 60.8°f, hi fan compressor frequency: rated for cooling operation voltage: 208v/230v 2.500 3.000 3.500 4.000 4.500 5.000 5.500 6.000 -4 6 16 2...

  • Page 112

    112 18.1.3 cs-e18sd3uaw cu-e18sd3ua condition indoor room temperature: 80.1°f dry bulb/66.9°f wet bulb unit setting: standard piping length, forced cooling at 60.8°f, hi fan compressor frequency: rated for cooling operation voltage: 208v/230v 5.000 5.500 6.000 6.500 7.000 7.500 8.000 8.500 9.000 -4 ...

  • Page 113

    113 18.2 heat mode outdoor air temperature characteristic 18.2.1 cs-e9sd3uaw cu-e9sd3ua condition indoor room temperature: 68°f dry bulb/ -°f wet bulb unit setting: standard piping length, forced heating at 86°f, hi fan compressor frequency: rated for heating operation voltage: 208v/230v 3.800 4.000...

  • Page 114

    114 18.2.2 cs-e12sd3uaw cu-e12sd3ua condition indoor room temperature: 68°f dry bulb/ -°f wet bulb unit setting: standard piping length, forced heating at 86°f, hi fan compressor frequency: rated for heating operation voltage: 208v/230v 4.300 4.500 4.700 4.900 5.100 5.300 5.500 5.700 5.900 6.100 6.3...

  • Page 115

    115 18.2.3 cs-e18sd3uaw cu-e18sd3ua condition indoor room temperature: 68°f dry bulb/ -°f wet bulb unit setting: standard piping length, forced heating at 86°f, hi fan compressor frequency: rated for heating operation voltage: 208v/230v 6.500 7.000 7.500 8.000 8.500 9.000 9.500 10.000 -4 1 6 11 16 2...

  • Page 116

    116 18.3 piping length correction factor the characteristic of the unit has to be corrected in accordance with the piping length. 18.3.1 cooling capacity 18.3.1.1 cs-e9sd3uaw cu-e9sd3ua cs-12sd3uaw cu-12sd3ua 0.95 0.96 0.97 0.98 0.99 1.00 1.01 1.02 1.03 1.04 0 2 (6.6) (13.1) (19.7) (26.2) (32.8) (39...

  • Page 117

    117 18.3.2 heating capacity 18.3.2.1 cs-e9sd3uaw cu-e9sd3ua cs-12sd3uaw cu-12sd3ua 0 2 4 6 8 10 12 14 16 0.94 0.96 0.98 1.00 1.02 1.04 1.06 1.08 capacity correction factor (6.6) (13.1) (19.7) (26.2) (32.8) (39.4) (45.9) (52.5) pipe length (m/ft) 3 (9.8) 1.0593 5 (16.4) 1.0323 7.5 (24.6) 1.0000 10 (3...

  • Page 118

    118 19. Exploded view and replacement parts list 19.1 indoor unit 1 2 43 44 45 9 28 26 27 24 29 25 10 12 11 13 21 22 23 16 14 15 7 3 33 35 36 31 32 20 40 41 42 38 30 19 18 4 6 8 37 8 o/i i/i i/i 17 >abs 5 39 note: the above exploded view is for the purpose of parts disassembly and replacement. The n...

  • Page 119

    119 safety ref no. Part name & description qty. Cs-e9sd3uaw cs-e12sd3uaw cs-e18sd3uaw remark 1 cabinet top plate - complete 1 cwe03c1169 ← ← 2 foamed styrene complete 1 acxg07c00070 ← ← 3 foamed styrene complete 1 cwg07c1092 ← ← 4 foamed styrene complete 1 cwg07c1093 ← ← 5 bulkhead 1 cwd531059 ← ← 6...

  • Page 120

    120 19.2 outdoor unit 19.2.1 cu-e9sd3ua cu-e12sd3ua 35 15 3 6 5 8 7 28 29 33 31 17 16 10 11 4 12 39 22 21 19 27 26 37 38 9 2 1 23 24 32 36 34 20 14 25 30 44 43 40 13 42 41 note: the above exploded view is for the purpose of parts disassembly and replacement. The non-numbered parts are not kept as st...

  • Page 121

    121 safety ref no. Description & name qty. Cu-e9sd3ua cu-e12sd3ua remark 1 chassy assy 1 cwd50k2081a ← 2 sound proof material (top) 1 cwg302570 ← 3 fan motor bracket 1 cwd541089 ← 4 screw - bracket fan motor 2 cwh551217 ← 5 fan motor 1 arw6404ac ← o 6 screw - fan motor mount 3 cwh55252j ← 7 propelle...

  • Page 122

    122 19.2.2 cu-e18sd3ua 48 42 43 9 10 14 13 46 12 27 41 56 32 30 49 50 26 25 44 38 17 24 11 1 4 15 16 5 28 29 54 53 36 47 37 3 40 22 35 51 33 2 23 21 19 57 note: the above exploded view is for the purpose of parts disassembly and replacement. The non-numbered parts are not kept as standard service pa...

  • Page 123

    123 safety ref no. Description & name qty. Cu-e18sd3ua remark 1 chassy assy 1 cwd52k1228a 2 anti - vibration bushing 3 cwh50055 3 packing 3 cwb81043 4 compressor 1 5kd240xaf21 o 5 nut - compressor mount 3 cwh561049 9 fan motor bracket 1 cwd541127 10 fan motor 1 ehds80cac o 11 screw - bracket fan mot...

  • Page 124

    124 safety ref no. Description & name qty. Cu-e18sd3ua remark 56 electronic controller (noise filter) 1 cwa748363 57 clip for sensor 1 cwh711010 (note) all parts are supplied from papamy, malaysia (vendor code: 00029488). “o” marked parts are recommended to be kept in stock. [papamy] printed in mala...