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Panasonic CS-E12GFEW Service Manual

Summary of CS-E12GFEW

  • Page 1

    © 2007 panasonic ha air-conditioning (m) sdn. Bhd. (11969-t). All rights reserved. Unauthorized copying and distribution is a violation of law. Order no. Rac0704001c2 air conditioner cs-e9gfew cu-e9gfe cs-e12gfew cu-e12gfe cs-e18gfew cu-e18gfe contents page page 1 safety precautions-----------------...

  • Page 2: 1 Safety Precautions

    2 6.1. Cs-e9gfew cu-e9gfecs-e12gfew cu- e12gfe ---------------------------------------------------- 24 6.2. Cs-e18gfew cu-e18gfe -------------------------- 25 7 wiring connection diagram --------------------------------- 26 7.1. Indoor unit ------------------------------------------------- 26 7.2. O...

  • Page 3

    3 5. For electrical work, follow the local national wiring standard, regulation and the installation instruction. An independent circuit and single outlet must be used. If electrical circuit capacity is not enough or defect found in electrical work, it will cause electrical shock or fire. 6. Use the...

  • Page 4: 2 Specifications

    4 2 specifications 2.1. Floor type 2.1.1. Cs-e9gfew cu-e9gfe item unit cs-e9gfew cu-e9gfe cooling capacity kw 2.50 (0.80 ~ 3.00) kcal/h 2,150 (690 ~ 2,580) btu/h 8,500 (2,700 ~ 10,200) heating capacity kw 3.60 (0.80 ~ 5.00) kcal/h 3,100 (690 ~ 4,300) btu/h 12,300 (2,700 ~ 17,100) moisture removal l/...

  • Page 5

    5 • specifications are subject to change without notice for further improvement. Compressor type — brushless (4-poles) motor type — rated output w — air circulation type turbo fan propeller fan material asg pp motor type transistor (8-poles) induction (6-poles) input w — — rated output w 48 28 fan s...

  • Page 6

    6 2.1.2. Cs-e12gfew cu-e12gfe item unit cs-e12gfew cu-e12gfe cooling capacity kw 3.50 (0.80 ~ 3.80) kcal/h 3,010 (690 ~ 3,270) btu/h 11,900 (2,700 ~ 13,000) heating capacity kw 4.80 (0.80 ~ 6.10) kcal/h 4,130 (690 ~ 5,240) btu/h 16,400 (2,700 ~ 20,800) moisture removal l/h 2.0 pt/h (4.2) power sourc...

  • Page 7

    7 • specifications are subject to change without notice for further improvement. Air circulation type turbo fan propeller fan material asg pp motor type transistor (8-poles) induction (6-poles) input w — — rated output w 48 29 fan speed lo (cool / heat) 640 / 650 — me (cool / heat) 530 / 530 — hi (c...

  • Page 8

    8 2.1.3. Cs-e18gfew cu-e18gfe item unit cs-e18gfew cu-e18gfe cooling capacity kw 5.00 (0.90 ~ 5.60) kcal/h 4,300 (780 ~ 4,820) btu/h 17,100 (3,100 ~ 19,100) heating capacity kw 5.80 (0.90 ~ 7.10) kcal/h 4,990 (780 ~ 6,100) btu/h 19,800 (3,100 ~ 24,200) moisture removal l/h 2.8 pt/h (5.9) power sourc...

  • Page 9

    9 • specifications are subject to change without notice for further improvement. Air circulation type turbo fan propeller fan material asg pp motor type transistor (8-poles) transistor (8-poles) input w — — rated output w 48 29 fan speed lo (cool / heat) 760 / 860 — me (cool / heat) 660 / 720 — hi (...

  • Page 10

    10 2.2. Outdoor unit: cu-2e15gbe.

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    11 2.3. Outdoor unit: 3e18ebe.

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    12 2.4. Outdoor unit: cu-3e23cbpg cu-4e27cbpg.

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    13.

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    14.

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    15.

  • Page 16: 3 Features

    16 3 features • product - a single outdoor unit enable air conditioning of up to two separate rooms for cu-2e15gbe. - a single outdoor unit enable air conditioning of up to three separate rooms for cu-3e18ebe and cu-3e23cbpg. - a single outdoor unit enable air conditioning of up to four separate roo...

  • Page 17

    17 3.1. Remote control.

  • Page 18

    18 3.2. Indoor unit.

  • Page 19

    19 3.3. Outdoor unit.

  • Page 20

    20 4 location of controls and components 4.1. Indoor unit 4.2. Outdoor unit 4.3. Remote control.

  • Page 21: 5 Dimensions

    21 5 dimensions 5.1. Indoor unit.

  • Page 22

    22 5.2. Outdoor unit 5.2.1. Cu-e9gfe cu-e12gfe.

  • Page 23

    23 5.2.2. Cu-e18gfe.

  • Page 24

    24 6 refrigeration cycle diagram 6.1. Cs-e9gfew cu-e9gfe cs-e12gfew cu-e12gfe.

  • Page 25

    25 6.2. Cs-e18gfew cu-e18gfe.

  • Page 26: 7 Wiring Connection Diagram

    26 7 wiring connection diagram 7.1. Indoor unit.

  • Page 27

    27 7.2. Outdoor unit 7.2.1. Cu-e9gfe cu-e12gfe.

  • Page 28

    28 7.2.2. Cu-e18gfe.

  • Page 29

    29 8 electronic circuit diagram 8.1. Indoor unit / remote controller.

  • Page 30

    30 control board (main) control board (display & receive) control board (display).

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    31 8.2. Outdoor unit 8.2.1. Cu-e9gfe cu-e12gfe.

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    32 8.2.2. Cu-e18gfe.

  • Page 33

    33 control board (outdoor unit).

  • Page 34: 9 Operation and Control

    34 9 operation and control 9.1. Simultaneous operation control (multi type only) 1. Operation modes which can be selected using the remote control unit: automatic, cooling, dry, heating, fan operation mode. 2. Types of operations modes which can be performed simultaneously • cooling operation and co...

  • Page 35

    35 9.2. 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 maintains the set temperature...

  • Page 36

    36 table (d): indoor air temperature shifting 1. Target room temperature shift value (dgetadst) • to offset the absolute gap between detection temperature with actual room temperature. • the heat exchanger unit’s temperature is different based on operation mode, it becomes the action operation mode ...

  • Page 37

    37 9.3.1. Cooling operation • compressor is off when intake air temperature - internal setting temperature qc. • compressor is on after waiting for 3 minutes, if the intake air temperature - internal setting temperature > compressor off point. 9.3.2. Dry operation • compressor is off when intake air...

  • Page 38

    38 values of t1, t2, and t3 depend on remote control setting temperature, as shown in below table. After the adjustment of t1, t2 and t3 values, the operation mode for that particular environment and remote control setting is judged and performed, based on the above operation mode chart, every *(a) ...

  • Page 39

    39 9.5. Indoor fan motor operation a. Basic rotation speed (rpm) • required rotation speed for fan is set to respond to the remote control setting (10 rpm unit). [cooling, dry, fan] during upper air outlet discharge [cooling, dry, fan] during upper and lower air outlets discharge [heating] during up...

  • Page 40

    40 b. Indoor fan control i. Indoor fan control operation outline 1. Cooling / dry 2. Heating ii. Auto fan speed 1. Cooling cooling dry under different mode standby [multi type] stop forced operation hi — oth er than a b ove min. Control automatic operation mode judgement lo- other th an above timer ...

  • Page 41

    41 2. Heating note: a. Up: • if move from lo, the fan speed will be shifted to maximum 1,520 rpm. • if move from maximum, the fan speed no change. • in up zone, 10 rpm is added for every 10s until maximum 1,520 rpm. B. Down: • the fan speed will be decreased one step every 10 sec. Until minimum 1,27...

  • Page 42

    42 9.6.2. Cooling/dry operation air swing; auto • when air swing-auto of remote control button is pressed, the upper air outlet swings in the range of the upper limit and the lower limit. • when fan motor stop, vertical airflow direction louver does not swing. • when off/on button is pressed again, ...

  • Page 43

    43 9.6.6. Quiet operation (cooling mode/cooling area of 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 cond...

  • Page 44

    44 9.7. Powerful mode operation when the powerful mode is selected, the internal setting temperature will shift to achieve the setting temperature quickly. Single type: after the startup powerful, powerful lamp 20 minutes illumination. Multi type: at the time of powerful driving, powerful lamp illum...

  • Page 45

    45 9.10. Auto restart control 1. When the power supply is cut off during the operation of air conditioner, the compressor will re-operate within three to four minutes (there are 10 patterns between 2 minutes 58 seconds and 3 minutes 52 seconds to be selected randomly) after power supply resumes. 2. ...

  • Page 46

    46 9.14. Dew prevention control a. Purpose to prevent dew. B. Control start conditions when indoor units are ceiling floor, duct and mini-cassette. C. Control contents hz control is carried out according to the dew prevention status transmitted from indoor. Change is once to 10 seconds. * once the s...

  • Page 47

    47 9.15.1.4. Ipm (power transistor) prevention control a. Overheating prevention control 1. When the ipm temperature rises to 100 qc, compressor operation will stop immediately. 2. Compressor operation restarts after three minutes the temperature decreases to 95 qc. B. Dc peak current control 1. Whe...

  • Page 48

    48 2. Outdoor total current i air conditioning: 0.65 heating: 0.65 it is not during deice operation 3. During cooling and dry operation: indoor suction-indoor piping temperature is below 4 qc. During heating operation: indoor piping temperature-indoor suction is under 5 qc. Control contents: • compr...

  • Page 49

    49 9.15.2. Protection control for cooling & dry operation 9.15.2.1. Outdoor air temperature control the compressor operating frequency is regulated in accordance to the outdoor air temperature as shown in the diagram below. This control will begin 1 minute after the compressor starts. 9.15.2.2. Cool...

  • Page 50

    50 3. Control contents - change a current limit value in a protection location a. (refer to the clause of total running current control value) 4. Condition resolutive it is canceled when it stops satisfying all of the above-mentioned. 9.15.2.3. Anti-freezing control 1. When indoor heat exchanger tem...

  • Page 51

    51 9.15.3.2. Outdoor air temperature control the max current value is regulated in accordance to the outdoor air temperature as shown in the below figures. 9.15.3.3. Overload protection control the compressor operating frequency is regulated in accordance to indoor heat exchanger temperature as show...

  • Page 52

    52 9.15.3.4. Deice control a. Deice operation (normal deice operation) 1. Detection methods outdoor heat exchanger temperature sensor, timer. 2. Deice operation time chart notes • during deice operation, as relationship for outdoor piping temperature and time t5, the priority given to the condition ...

  • Page 53: 10 Self Diagnosis Display

    53 10 self diagnosis display 10.1. Self diagnosis function • breakdown contents can be verified by error code indicated at indoor unit. The error code indicator is located inside suction grille. Could be see when suction grille is opened. • the error code could be recalled by pressing the 'check' bu...

  • Page 54

    54 10.2. Error codes table abnormality / protection control abnormality judgement emergency operation primary location to verify note diagnosis display h11 indoor / outdoor abnormal communication > 1 min after starting operation indoor fan operation only (single type only) • internal / external cabl...

  • Page 55

    55 note: “o” - frequency measured and fan speed fixed. F91 refrigeration cycle abnormality 2 times occurrence within 20 minutes — • no refrigerant (3-way valve is closed) f93 outdoor compressor abnormal revolution 4 times occurance within 20 minutes — • compressor f95 cool high pressure protection 4...

  • Page 56: 11 Installation Instruction

    56 11 installation instruction 11.1. Auto switch operation the following operations can be performed by pressing the “auto” switch. 1. Auto operation mode the auto operation will be activated immediately once the auto switch is pressed. 2. Test run operation (for pump down/ servicing purpose) the te...

  • Page 57

    57 11.3. Indoor unit 11.3.1. Selecting the installation location • indoor unit before choosing the installation site, obtain user approval. - there should not be any heat source or steam near the unit. - there should not be any obstacles blocking the air circulation. - a place where air circulation ...

  • Page 58

    58 • remote controller - signals may not be transmitted and received correctly when the remote controller is operated while in the holder. Take the remote controller in your hand to operate the unit. - mount the holder in a location that is not subject to the effects of heat (direct sunlight and sto...

  • Page 59

    59 to drill a hole in the wall and install a sleeve of piping 1. Insert the piping sleeve to the hole. 2. Fix the bushing to the sleeve. 3. Cut the sleeve until it extrudes about 15 mm from the wall. 4. Finish by sealing the sleeve with putty or caulking compound at the final stage. Drain piping 1. ...

  • Page 60

    60 • connecting the drain hose see 4. Connecting the drain hose indoor unit installation • secure using 6 screws for floor installations. (do not forget to secure to the rear wall.) • for wall installations, secure the mounting plate using 5 screws and the indoor unit using 4 screws. • the mounting ...

  • Page 61

    61 installation of supplemental plate for attaching indoor unit • the rear of the unit can be fixed with screws at the points shown in the illustration as below. Be sure to install the supplemental plate in accordance with the depth of the inner wall. Refrigerant piping see refrigerant piping under ...

  • Page 62

    62 11.3.3.3. Concealed installation • only item peculiar to this installation method are given here. See exposed installation for additional instructions. Preparation • install the unit according to the instructions below. Failure to do so may cause lead to both cooling and heating failure and the c...

  • Page 63

    63 11.3.4. Connecting the drain hose • insert the supplied drain hose into the socket of the drain pan. Fully insert the drain hose until it adheres to a seal of the socket. Check the drainage • pour a glass of water into the drain pan. • ensure that water flows out from drain pipe. 11.3.5. Connecti...

  • Page 64

    64 insulating the refrigerant piping • attach the pipe after checking for gas leakage, described above. 1. Cut the insulated portion of the on-site piping, matching it up with the connecting portion. 2. Secure the slit on the auxiliary pipe side with the butt joint on the connection pipe using the t...

  • Page 65

    65 11.4. Outdoor unit 11.4.1. Selecting the installation location before choosing the installation site, obtain user approval. • if an awning is built over the unit to prevent direct sunlight or rain, be careful that heat radiation from the condenser is not obstructed. • there should not be any anim...

  • Page 66

    66 flaring the pipe end 1. Please cut using pipe cutter and then remove the burrs. 2. Remove the burrs by using reamer. If burrs is not removed, gas leakage may be caused. Turn the piping end down to avoid the metal powder entering the pipe. 3. Please make flare after inserting the flare nut onto th...

  • Page 67

    67 11.4.5. Connecting the cable (for detail refer to wiring diagram at unit) 1. Remove the control board cover from the unit by loosening the screw. 2. Connecting cable between indoor unit and outdoor unit shall be approved polychloroprene sheathed 4 x 1.5 mm 2 flexible cord, type designation 245 ie...

  • Page 68

    68 12 disassembly and assembly instructions 12.1. Indoor unit 1. Removal of suction grille push the knob of suction grille (2 places) to the “open” position to remove grille. 2. Removal of front grille remove screws, 2 at top and 2 at bottom to remove the front grille. 3. Removal of control board ca...

  • Page 69

    69 c. Raise up the resin case, remove the shield plate. D. Remove the connectors which connected to pcb. (6 places) remove the pipe temperature sensor from the heat exchanger. E. Remove the shield plate in the control board casing. Fig. 4 fig. 5 fig. 6.

  • Page 70

    70 f. Remove the terminal cables from the pcb from the terminal block (black, white, red) remove the green cable terminal that connected to the ground terminal. G. Remove the screws (2 locations) at pcb and take out the pcb. 4. Removal of drain pan ass'y remove the screws in front of drain pan (2 lo...

  • Page 71

    71 5. Removal of evaporator push the stoppers at left side of evaporator (2 locations) to loosen the evaporator. At the right side of evaporator, push the stoppers to loosen the evaporator and move the evaporator to right side. 6. Removal of turbo fan and fan motor a. Remove the cover. (4 screws) b....

  • Page 72

    72 12.2. Outdoor unit 12.2.1. Cu-e9gfe cu-e12gfe 1. Remove the top panel and front panel fig. 13 2. Remove the outdoor electronic controller fig. 15 caution! When handling electronic controller, be careful of electrostatic discharge. Fig. 16 fig. 14 fig. 17 • be save to return the wiring to its orig...

  • Page 73

    73 12.2.2. Cu-e18gfe.

  • Page 74: 13 Technical Data

    74 13 technical data 13.1. Operation characteristics cs-e9gfew cu-e9gfe.

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    75.

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    76.

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    77.

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    78 cs-e12gfew cu-e12gfe.

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    79.

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    80

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    81.

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    82 cs-e18gfew cu-e18gfe.

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    83.

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    84.

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    85.

  • Page 86

    86 13.2. Sensible capacity chart o cs-e9gfew cu-e9gfe o cs-e12gfew cu-e12gfe o cs-e18gfew cu-e18gfe 230v outdoor temp. ( qc) 30 qc 35 qc 40 qc 46 qc tc shc ip tc shc ip tc shc ip tc shc ip d.B. W.B. Kw kw kw kw kw kw kw kw kw kw kw kw 27 17.0 2.48 2.13 0.52 2.32 2.05 0.56 2.16 1.97 0.60 1.96 1.88 0....

  • Page 87

    87 14 exploded view and replacement parts list 14.1. Indoor unit.

  • Page 88

    88 ref. No. Part name and description qty. Cs-e9gfew cs-e12gfew cs-e18gfew remarks b1 evaporator ass'y 1 cw1786554 m cw1767368 b1-7 flare nut 1 cw1723546 m m b2 fitting spring / thermistor 1 cw380120 m m b3 grounding tip (w/washer) 1 cw113783j m m b5 flare nut 1 cw119848j m cw119849j c1 turbo fan as...

  • Page 89

    89 (note) • all parts are supplied from acbu, japan. • "o" marked parts are recommended to be kept in stock. F11 fixture, ref. Piping 1 cw1768082 m m f12 reinforce plate ass'y 1 cw1768099 m m f13 thermal insulation ass'y 1 cw1768107 m m k1 remote control 1 cwa75c3096 m m o k3 installation plate 1 cw...

  • Page 90

    90 14.2. Cu-e9gfe cu-e12gfe note: the above exploded view is for the purpose of parts disassembly and replacement. The non-numbered parts are not kept as standard service parts..

  • Page 91

    91 (note) • all parts are supplied from phaam, malaysia (vendor code: 061). • "o" maked parts are recommended to be kept in stock. Ref. No. Part name and description qty. Cu-e9gfe cu-e12gfe 1 chassy assy 1 cwd50k2073 m 2 anti-vibration bushing 3 cwh50077 m 3 compressor 1 5rs102xbc01 m 4 nut-compress...

  • Page 92

    92 14.3. Cu-e18gfe note: the above exploded view is for the purpose of parts disassembly and replacement. The non-numbered parts are not kept as standard service parts..

  • Page 93

    93 ref. No. Part name and description qty. Cu-e18gfe 1 chassy assy 1 cwd50k2085 2 anti-vibration bushing 3 cwh50077 3 compressor 1 5cs130xad04 4 nut-compressor mount 3 cwh56000j 5 sound proof material 1 cwg302302 6 fan motor bracket 1 cwd541054 7 fan motor 1 cwa981166j 8 screw - fan motor bracket 2 ...

  • Page 94

    94 (note) • all parts are supplied from phaam, malaysia (vendor code: 061). • "o" maked parts are recommended to be kept in stock. [phaam] printed in malaysia sfyf0703 - 00 61 sound proof material 1 cwg302300 ref. No. Part name and description qty. Cu-e18gfe.