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Panasonic CS-C12BKPG Service Manual

Summary of CS-C12BKPG

  • Page 1

    1 features 2 2 functions 3 3 product specifications 6 4 dimensions 10 5 refrigeration cycle diagram 12 6 block diagram 13 7 wiring diagram 15 8 operation details 17 9 operating instructions 25 10 installation instructions 30 © 2002 matsushita air-conditioning corp. Sdn. Bhd. (183914d). All rights re...

  • Page 2: 1 Features

    • high efficiency • compact design • comfort improvement − longer hours of sleep mode operation − air filter with function to reduce dust and smoke − wider range of horizontal discharge air • auto restart − random auto restart after power failure for safety restart operation • removable and washable...

  • Page 3: 2 Functions

    2 functions remote control operation off / on off / on i room temperature setting temp. Operation mode selection • auto automatic operation mode • cool cooling operation mode • dry soft dry operation mode • fan air circulation mode mode time time / timer setting • hours and minutes setting. Clock se...

  • Page 4

    Indoor unit random auto restart control • operation is restarted randomly after power failure at previous setting mode. Anti-freezing control • anti-freezing control for indoor heat exchanger. (cooling and soft dry) sleep mode auto control • indoor fan operates at low speed. • operation stops after ...

  • Page 5

    Outdoor unit • to protect compressor from reverse rotation when there is a instantaneous power failure. 60 secs. Forced operation control • once the compressor is activated, it does not stop within the first 60 secs. However, it stops immediately with remote control stop signal. Overload protector f...

  • Page 6: 3 Product Specifications

    3 product specifications unit cs-c12bkpg cu-2c24bkp5g power source phase v cycle single 230 - 220 50 cooling capacity kw kcal/h (1 unit) 3.52 - 3.46 3,023 - 2,975.5 (2 units) 7.03 - 6.92 6,046 - 5,951 moisture removal l/h pint/h (1 unit) 2.0 4.2 (2 units) 4.0 8.4 airflow method outlet intake side vi...

  • Page 7

    Air circulation type cross-flow fan propeller fan material as + glass fiber 20% as + glass fiber 20% motor type induction (4-poles) induction (6-poles) input w 29.3 - 26.3 87 rated output w 15 50 fan speed low rpm 900 - 900 — medium rpm 1,080 - 1,080 — high rpm 1,260 - 1,260 870 superhigh rpm 1,300 ...

  • Page 8

    Unit one unit (a) cs-c14bkpg one unit (b) cs-c9bkpg cu-2c23bkp5g power source phase v cycle single 230 - 220 50 cooling capacity kw kcal/h (a) 4.11 - 4.06 3,533 - 3,491 (b) 2.64 - 2.61 2,272 - 2,245 (a+b) 6.75 - 6.67 5,805 - 5,736 moisture removal l/h pint/h (a) 2.3 4.9 (b) 1.6 3.4 (a+b) 3.8 8.0 air...

  • Page 9

    Air circulation type cross-flow fan propeller fan material as + glass fiber 20% as + glass fiber 12% motor type induction (4-poles) induction (6-poles) input w (a) 28.7 - 27.1 (b) 20.6 - 19.1 87 rated output w (a) 15 (b) 15 50 fan speed low rpm (a) 900 - 900 (b) 780 - 780 — medium rpm (a) 1,080 - 1,...

  • Page 10: 4 Dimensions

    4 dimensions 10 cs-c12bkpg cu-2c24bkp5g / cs-c14bkpg cu-2c23bkp5g / cs-c9bkpg.

  • Page 11

    11 cs-c12bkpg cu-2c24bkp5g / cs-c14bkpg cu-2c23bkp5g / cs-c9bkpg.

  • Page 12

    5 refrigeration cycle diagram 12 cs-c12bkpg cu-2c24bkp5g / cs-c14bkpg cu-2c23bkp5g / cs-c9bkpg.

  • Page 13: 6 Block Diagram

    6 block diagram 13 cs-c12bkpg cu-2c24bkp5g / cs-c14bkpg cu-2c23bkp5g / cs-c9bkpg.

  • Page 14

    14 cs-c12bkpg cu-2c24bkp5g / cs-c14bkpg cu-2c23bkp5g / cs-c9bkpg.

  • Page 15: 7 Wiring Diagram

    7 wiring diagram 15 cs-c12bkpg cu-2c24bkp5g / cs-c14bkpg cu-2c23bkp5g / cs-c9bkpg.

  • Page 16

    16 cs-c12bkpg cu-2c24bkp5g / cs-c14bkpg cu-2c23bkp5g / cs-c9bkpg.

  • Page 17: 8 Operation Details

    Cooling in operation according to remote control setting. Time delay safety control (3 minutes) 7 minutes time save control starting current control anti-freezing control • if the temperature of the indoor heat exchanger falls continuously below 2°c for 4 minutes or more, the compressor turns off to...

  • Page 18

    Automatic fan speed mode cooling operation time diagram when automatic fan speed is selected at remote control during cooling operation. • fan speed rotates in the range of hi to me. • deodorizing control. 18 cs-c12bkpg cu-2c24bkp5g / cs-c14bkpg cu-2c23bkp5g / cs-c9bkpg.

  • Page 19

    Time delay safety control starting current control anti-freezing control compressor reverse rotation protection control anti-dew formation control automatic fan speed mode 8.2. Soft dry mode operation • the unit starts cooling operation until the room temperature reaches the setting temperature set ...

  • Page 20

    Soft dry operation time diagram 20 cs-c12bkpg cu-2c24bkp5g / cs-c14bkpg cu-2c23bkp5g / cs-c9bkpg.

  • Page 21

    Air circulation mode operation time diagram standard for determining operation mode 8.3. Air circulation mode operation • when the temperature near the ceiling reaches the setting temperature, air circulation mode operation commences at low airflow volume. It stops when the temperature drops to 2°c ...

  • Page 22

    Cooling or soft dry operation purpose is to obtain a comfortable room temperature while sleeping. When you press the sleep mode, the following movement will start to avoid overcooling. • sleep shift operation starts, when the room temperature reaches the setting temperature or after 1 hour of operat...

  • Page 23

    8.8. Random auto restart control • if there is a power failure, operation will be automatically restarted after 3 to 4 minutes when the power is resumed. It will start with previous operation mode and airflow direction. • restart time is decided randomly using 4 parameter:- intake air temperature, s...

  • Page 24

    Vertical airflow direction auto-control • when set a airflow direction auto-control with remote control, the louver swings up and down as shown in the diagram. • the louver does not swing when the indoor fan motor stops during operation at the upper limit. • when stopped with remote control, the dis...

  • Page 25: 9 Operating Instructions

    9 operating instructions safety precautions before operating, please read the following “safety precautions” carefully. ● to prevent personal injury, injury to others and property damage, the following instructions must be followed. ● incorrect operation due to failure to follow instructions will ca...

  • Page 26

    Name of each part ■ remote control ● remote control signal. • make sure it is not obstructed. • maximum distance : 10 m. • signal received sound. One short beep or one long beep. ● notes for remote control. • do not throw or drop. • do not get it wet. • certain type of fluorescent lamps may affect s...

  • Page 27

    ● operation details cool – cooling operation • to set the room temperature at your preference cooling comfort. Auto – automatic operation • sense indoor temperature to select the optimum mode. • temperature is not displayed on the remote control during auto operation. Dry – soft dry operation • a ve...

  • Page 28

    ■ pre-season inspection ● is the discharged air cold? Operation is normal if 15 minutes after the start of operation, the difference between the air intake and outlet vents temperature is:- ● are the air intake or outlet vents of the indoor or outdoor units obstructed? ● are the remote control batte...

  • Page 29

    Troubleshooting ■ normal operation is it okay? • air conditioner has been restarted, but does not operate for 3 minutes. • a sound like water flowing can be heard. • it seems that fog is coming out from the air conditioner. • the room has a peculiar odour. • during automatic airflow setting, indoor ...

  • Page 30

    10 installation instructions required tools for installation works 1. Philips screw driver 5. Spanner 9. Gas leak detector 13. Multimeter 2. Level gauge 6. Pipe cutter 10. Measuring tape 14. Torque wrench 18 n.M (1.8 kgf.M) 42 n.M (4.2 kgf.M) 55 n.M (5.5 kgf.M) 3. Electric drill, hole core drill (ø7...

  • Page 31

    1. This equipment must be earthed. It may cause electrical shock if grounding is not perfect. 2. Do not install the unit at place where leakage of flammable gas may occur. In case gas leaks and accumulates at surrounding of the unit, it may cause fire. 3. Carry out drainage piping as mentioned in in...

  • Page 32

    Applicable piping kit cz-3f5, 7aen (cs-c7bkpg, cs-c9bkpg) cz-4f5, 7, 10an (cs-c12bkpg, cs-c14bkpg) select the best location indoor unit • 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 in t...

  • Page 33

    10.2.1. Select the best location (refer to “select the best location” section) 10.2.2. How to fix installation plate the mounting wall is strong and solid enough to prevent it from the vibration. The centre of installation plate should be at more than 450 mm at right and left of the wall. The distan...

  • Page 34

    3. For the embedded piping (this can be used for left rear piping & left bottom piping also.) 34 cs-c12bkpg cu-2c24bkp5g / cs-c14bkpg cu-2c23bkp5g / cs-c9bkpg.

  • Page 35

    10.2.5. Connect the cable to the indoor unit 1. The inside and outside connecting cable can be connected without removing the front grille. 2. Connecting cable between indoor unit and outdoor unit shall be approved polychloroprene sheathed 4 × 1.5 mm 2 flexible cord, type designation 245 iec 57 or h...

  • Page 36

    How to take out front grille please follow the steps below to take out front grille if necessary such as when servicing. 1. Set the vertical airflow direction louver to the horizontal position. 2. Slide down the two caps on the front grille as shown in the illustration below, and then remove the two...

  • Page 37

    Connecting the piping to outdoor unit 1. Align the center of the piping and sufficiently tighten the flare nut with fingers. 2. 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 t...

  • Page 38

    1. Connect a charging hose with a push pin to the low and high side of a charging set and the service port of the 3-way valve. • be sure to connect the end of the charging hose with the push pin to the service port. 2. Connect the center hose of the charging set to a vacuum pump with check valve, or...

  • Page 39

    Check the drainage • open front panel and remove air filters. (drainage checking can be carried out without removing the front grille.) • pour a glass of water into the drain tray-styrofoam. • ensure that water flows out from drain hose of the indoor unit. Evaluation of the performance • operate the...

  • Page 40: 11 3-Way Valve

    11 3-way valve 3-way valve (liquid side) 3-way valve (gas side) works shaft position service port shaft position service port shipping closed closed closed close (with valve cap) (with cap) (with valve cap) (with cap) (installation and closed open closed open re-installation) (clockwise) (connected ...

  • Page 41

    11.1.1. Evacuation of the installation required tools: hexagonal wrench, adjustable wrench, torque wrenches, wrench to hold the joints, gas leak detector, and charging set. 1. Connect a charging hose with a push pin to the low and high sides of a charging set and the service ports of a 3-way valves....

  • Page 42

    11.1.2. Pumping down 1. Confirm that both the 3-way valves are set to the open position. • remove the valve stem caps and confirm that the valve stems are in the open position. • be sure to use a hexagonal wrench to operate the valve stems. 2. Operate the unit for 10 to 15 minutes. 3. Stop operation...

  • Page 43

    11.1.3. Evacuation of re-installation when reinstalling an air conditioner, be sure to evacuate the air inside the indoor unit and pipes in the following procedure. 1. Connect a charging hose with a push pin to the low and high sides of a charging set and the service port of the 3-way valve. • be su...

  • Page 44

    (lack of refrigerant in the refrigeration cycle) procedure: 1. Confirm that both the 3-way valves are set to the opened position. 2. Connect the charge set to the 3-way valve’s service port. • leave the valve on the charge set closed. • connect the charge hose with the push-pin to the service port. ...

  • Page 45

    (no refrigerant in the refrigeration cycle) procedure: 1. Connect the vacuum pump to the charge set’s centre hose. 2. Turn on the vacuum pump to evacuate the unit. • confirm that the gauge needle has moved toward -76 cmhg (-0.1 mpa). • apply the vacuum for approximately 1 hour (vacuum of 4 mmhg or l...

  • Page 46

    (after evacuation) procedure: 1. Connect the charge hose to the charging cylinder. • connect the charge hose which you disconnected from the vacuum pump to the valve at the bottom of the cylinder. 2. Purge the air from the charge hose. • open the valve at the bottom of the cylinder and use a screwdr...

  • Page 47: 12 Servicing Information

    12.1. Indoor electronic controllers removal procedures 1. The electronic controller, a signal receiver and an indicator (fig. 3) can be seen by the below steps: • remove the 2 caps and 2 screws at the bottom of the front grille. (fig. 1) • remove the front grille by releasing the 2 hooks at the top ...

  • Page 48

    − pulling out the drain hose from outlet to remove the discharge grille. (fig. 5) − removing the right and left screws. (fig. 5) − then remove the control board by pressing down the hook at the left and pushing up the right hook. (fig. 5) − release the fan motor leadwire by pressing the hook at the ...

  • Page 49

    − remove the screws at the left of the evaporator. (fig. 8) − remove the bearing. (fig. 9) − push up the evaporator and pull out the cross flow fan from shaft. By then, fan motor can be taken out. (fig. 9) fig. 8 fig. 9 49 cs-c12bkpg cu-2c24bkp5g / cs-c14bkpg cu-2c23bkp5g / cs-c9bkpg.

  • Page 50

    • remote control reset when the batteries 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 happen, remove the cover of the remote control and you will find a resetting terminal, and by shorting it with a min...

  • Page 51: 13 Troubleshooting Guide

    13.1. 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 fan. The normal outlet air te...

  • Page 52

    13.1.1. Relationship between the condition of the air conditioner and pressure and electric current cooling mode condition of the air conditoner low pressure high pressure electric current during operation insufficient refrigerant (gas leakage) clogged capillary tube or strainer short circuit in the...

  • Page 53: 14 Technical Data

    14 technical data 53 cs-c12bkpg cu-2c24bkp5g / cs-c14bkpg cu-2c23bkp5g / cs-c9bkpg.

  • Page 54

    54 cs-c12bkpg cu-2c24bkp5g / cs-c14bkpg cu-2c23bkp5g / cs-c9bkpg.

  • Page 55: 15 Exploded View

    15 exploded view 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. 55 cs-c12bkpg cu-2c24bkp5g / cs-c14bkpg cu-2c23bkp5g / cs-c9bkpg.

  • Page 56: 16 Replacement Parts List

    16 replacement parts list ref. No. Part name & description qty. Cs-c9bkpg cs-c12bkpg cs-c14bkpg remarks 1 chassy complete 1 cwd50c1177 ← ← 2 fan motor 1 cwa921060 ← ← 0 3 cross flow fan complete 1 cwh02c1012 ← ← 4 bearing ass’y 1 cwh64k007 ← ← 5 screw - cross flow fan 1 cwh4580304 ← ← 6 evaporator 1...

  • Page 57: 17 Exploded View

    17 exploded view 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. 57 cs-c12bkpg cu-2c24bkp5g / cs-c14bkpg cu-2c23bkp5g / cs-c9bkpg.

  • Page 58: 18 Replacement Parts List

    18 replacement parts list ref no. Description & name q’ty cu-2c23bkp5g cu-2c24bkp5g safety part 1 chassy ass’y 1 cwc5239-710a cwc5239-350a 2 fan motor bracket 1 cwc5241-830 ← 3 fan motor 1 cwc4301-770 ← 4 propeller fan 1 cwc5700-390 ← 5 nut 1 cwc4583-020 ← 6 compressor (b unit) 1 2ps146d5ba02 2ks206...

  • Page 59

    Ref no. Description & name q’ty cu-2c23bkp5g cu-2c24bkp5g safety part 64 rain cover 1 cwc4631-400 ← 65 sound arrester 1 cwc5591-650 ← 66 poly-e foam 1 cwn5a30-325 ← 67 poly-e foam 1 cwehb3a325-360f ← (note) • all parts are supplied from tamaco, taiwan. 59 cs-c12bkpg cu-2c24bkp5g / cs-c14bkpg cu-2c23...

  • Page 60: 19 Electronic Parts List

    19 electronic parts list symbol description & name part no. Bz101 sound generator a48040 c-fm sh capacitor a31698 d08, d10, d11 diode b0acck000005 (cwa742780 only) db01 diode a54cs1vb20e fuse fuse xba2c20tr0 fuse holder fuse holder xcscw012 ic01 integrated circuit a52d0022gb34 ic02 integrated circui...

  • Page 61

    20 electronic circuit diagram schematic diagram 1/5 • cs-c12bkpg / cu-2c24bkp5g • cs-c14bkpg / cu-2c23bkp5g • cs-c9bkpg (ph10) 10 7 12 5 11 6 9 g f e cn-stm 3 4 5 5 4 3 2 (ph5) (zh5) air temp. Sensor (15k 3950) (20k 3950) pipe temp. Sensor receiver indicator a b c d cn-disp 7 6 5 4 3 1 2 1 8 3 14 2 ...

  • Page 62

    Q03 4.7k 10k e b c db01 t01 4 7 5 1 a52d0022gb34 ic01 + — ~ ~ p72 p73 p74 p75 p64 p65 p66 p67 p40/ad0 p41/ad1 p42/ad2 p43/ad3 p44/ad4 p45/ad5 p46/ad6 p47/ad7 p11/an1 p12/an2 p13/an3 p14/an4 p15/an5 p16/an6 p17/an7 avss vdd1 p25 p24 p23 p22/sck p21/s0 p20/s1 p36 p51/a9 p50/a8 p53/a11 p52/a10 p54/a12 ...

  • Page 63

    Ic03 g i 16v 100 c11 — + 5v 12v i g ic04 c17 3300 35v (nhg) + — + — c14 470 25v 1k r36 motor fan cn-fm 5 4 3 1 3 2 cn-fb1 1 (ph-3) ry-pwr 250v 2a ac thermal fuse 102¡c to outdoor unit (wht) 511u znr01 regulator regulator 0.1 c12 400v 1.5 c-fm 0.047 c03 ssr01 511u znr03 125 h l01 0.47 c19 510 r48 39k...

  • Page 64

    Schematic diagram 4/5 blue red mark compressor terminal yellow ac 220-230v 50hz single phase to indoor unit b outdoor unit terminal l n 1 2 3 1 2 3 to indoor unit y y y y capacitor a capacitor fan motor pcb ry1 ry2 cn-ctl fm2 (y) fm1 (b) compressor a capacitor b compressor b magnetic relay a magneti...

  • Page 65

    Schematic diagram 5/5 • cu-2c24bkp5g blue red mark compressor terminal yellow ac 220-230v 50hz single phase to indoor unit b outdoor unit terminal l n 1 2 3 1 2 3 to indoor unit y y y y capacitor a capacitor fan motor ry1 pcb ry2 cn-ctl fm2 (y) fm1 (b) compressor a capacitor b compressor b magnetic ...

  • Page 66

    66 cs-c12bkpg cu-2c24bkp5g / cs-c14bkpg cu-2c23bkp5g / cs-c9bkpg.

  • Page 67

    How to use electronic circuit diagram timer table test mode name time (when test point remarks short-circuited) sleep mode waiting 1 hr. 6 sec. Sleep mode operation 8 hrs. 48 sec. Real timer 1 hr. 1 min. 10 min. 10 sec. 1 min. 1 sec. Time delay safety control 2 min. 58 sec. 0 sec. Forced operation 6...

  • Page 68

    20.1. Remote control 68 cs-c12bkpg cu-2c24bkp5g / cs-c14bkpg cu-2c23bkp5g / cs-c9bkpg.

  • Page 69

    20.2. Print pattern indoor unit printed circuit board top view 69 cs-c12bkpg cu-2c24bkp5g / cs-c14bkpg cu-2c23bkp5g / cs-c9bkpg.

  • Page 70

    20.3. Print pattern indoor unit printed circuit board bottom view 70 cs-c12bkpg cu-2c24bkp5g / cs-c14bkpg cu-2c23bkp5g / cs-c9bkpg [macc] printed in malaysia.