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Panasonic CS-A12CKP Service Manual

Summary of CS-A12CKP

  • Page 1

    1 features 2 2 functions 3 3 product specifications 6 4 dimensions 12 5 refrigeration cycle diagram 14 6 block diagram 15 7 wiring diagram 16 8 operation details 17 9 operating instructions 39 10 installation instructions 44 © 2002 matsushita industrial corp. Sdn. Bhd. (11969-t). All rights reserved...

  • Page 2: 1 Features

    • high efficiency • compact design • comfort environment − ionizer control for generate negative ion in discharge air − 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 • ...

  • 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 • heat heating operation mode • cool cooling operation mode • dry soft dry operation mode mode time time / timer setting • hours and minutes setting. Clock...

  • 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) ionizer control • ionizer control for generate negative ion in discharge air. Indoor...

  • 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 •...

  • Page 6: 3 Product Specifications

    3 product specifications unit cs-a7ck cu-a7ck power source phase, voltage, cycle (1) (3) single, 220 - 230, 50 hz (2) single, 220 - 240, 50 hz cooling capacity kw (kcal/h) (1) (3) 2.00 - 2.05 (1,720 - 1,760) kw (btu/h) (2) 2.00 - 2.05 (6,820 - 6,990) heating capacity kw (kcal/h) (1) (3) 2.20 - 2.25 ...

  • Page 7

    Unit cs-a7ck cu-a7ck air circulation type cross-flow fan propeller fan material as + glass fiber 20% pp resin motor type induction (4-poles) induction (6-poles) input w 44.8 - 53.5 56 - 64 rate output w 15 29 fan speed low rpm cooling; 780 - 780 — heating; 840 - 840 medium rpm cooling; 920 - 920 hea...

  • Page 8

    Unit cs-a9ck cu-a9ck power source phase, voltage, cycle (1) (3) single, 220 - 230, 50 hz (2) single, 220 - 240, 50 hz cooling capacity kw (kcal/h) (1) (3) 2.65 - 2.70 (2,280 - 2,320) kw (btu/h) (2) 2.65 - 2.65 (9,040 - 9,040) heating capacity kw (kcal/h) (1) (3) 3.00 - 3.05 (2,580 - 2,620) kw (btu/h...

  • Page 9

    Unit cs-a9ck cu-a9ck air circulation type cross-flow fan propeller fan material as + glass fiber 20% pp resin motor type induction (4-poles) induction (6-poles) input w 44.8 - 53.5 56 - 64 rate output w 15 29 fan speed low rpm cooling; 780 - 780 heating; 840 - 840 — medium rpm cooling; 960 - 960 hea...

  • Page 10

    Unit cs-a12ck cu-a12ck power source phase, voltage, cycle (1) (3) single, 220 - 230, 50 hz (2) single, 220 - 240, 50 hz cooling capacity kw (kcal/h) (1) (3) 3.52 - 3.60 (3,030 - 3,100) kw (btu/h) (2) 3.52 - 3.57 (12,000 - 12,170) heating capacity kw (kcal/h) (1) (3) 3.90 - 4.07 (3,350 - 3,500) kw (b...

  • Page 11

    Unit cs-a12ck cu-a12ck fan speed low rpm cooling; 900 -900 heating; 960 - 960 — medium rpm cooling; 1,120 - 1,120 heating; 1,120 - 1,120 — high rpm (1) (3) cooling; 1,260 - 1,260 heating; 1,300 - 1,300 835 - 845 (2) cooling; 1,260 - 1,260 heating; 1,300 - 1,300 835 - 860 superhigh rpm cooling; 1,300...

  • Page 12: 4 Dimensions

    4 dimensions 12 cs-a7ckp cu-a7ckp5 / cs-a9ckp cu-a9ckp5 / cs-a12ckp cu-a12ckp5.

  • Page 13

    13 cs-a7ckp cu-a7ckp5 / cs-a9ckp cu-a9ckp5 / cs-a12ckp cu-a12ckp5.

  • Page 14

    5 refrigeration cycle diagram 14 cs-a7ckp cu-a7ckp5 / cs-a9ckp cu-a9ckp5 / cs-a12ckp cu-a12ckp5.

  • Page 15: 6 Block Diagram

    6 block diagram 15 cs-a7ckp cu-a7ckp5 / cs-a9ckp cu-a9ckp5 / cs-a12ckp cu-a12ckp5.

  • Page 16: 7 Wiring Diagram

    7 wiring diagram 16 cs-a7ckp cu-a7ckp5 / cs-a9ckp cu-a9ckp5 / cs-a12ckp cu-a12ckp5.

  • 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

    Compressor protection control automatic fan speed mode • after the compressor starts for 50 seconds but the outdoor fan motor is still off, the compressor will stop and restart automatically. (time delay safety control is valid). • if the above phenomenon is repeated for 3 times, the compressor will...

  • Page 19

    Cooling operation time diagram 19 cs-a7ckp cu-a7ckp5 / cs-a9ckp cu-a9ckp5 / cs-a12ckp cu-a12ckp5.

  • Page 20

    Quiet operation control (for cooling mode or cooling region of soft dry mode) • purpose of this operation is to provide quite cooling operation compare to normal operation. • when the quiet mode is set at the remote control, quiet mode led illuminates, the sound level will be automatically decreased...

  • Page 21

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

  • Page 22

    Soft dry operation time diagram quiet operation control (for dry region at soft dry mode) 22 cs-a7ckp cu-a7ckp5 / cs-a9ckp cu-a9ckp5 / cs-a12ckp cu-a12ckp5.

  • Page 23

    Heating in operation according to remote control setting. Time delay safety control 30 minutes time save control overload protection control (b) compressor high pressure protection compressor reverse rotation protection control 4-way valve control outdoor fan motor control indoor fan motor control 8...

  • Page 24

    Hot start control anti cold draft control when heating operation starts, indoor fan will not start until the indoor heat exchanger reaches 30°c as diagram shown. Hot start is completed when indoor heat exchanger rises to 39°c or over 4 minutes. • this operation is to prevent the cold draft during he...

  • Page 25

    Automatic fan speed mode heating operating time diagram when automatic fan speed is selected at remote control during heating operation. • fan speed rotates in the range of me → slo according to the heat exchanger temperature. • if use manual fan speed, at above diagram will operate with setting fan...

  • Page 26

    Deicing control deice starts to prevent frosting at outdoor heat exchanger. • normal deicing deice operations detection commences after 30 minutes of heating operation starts or 60 minutes after previous deice operation. If the trs (thermal reed switch) senses the outdoor piping temperature drops to...

  • Page 27

    Normal deicing time diagram overload deicing time diagram 27 cs-a7ckp cu-a7ckp5 / cs-a9ckp cu-a9ckp5 / cs-a12ckp cu-a12ckp5.

  • Page 28

    Quiet operation control (for heating mode) • purpose of this operation is to provide quite heating operation compare to normal operation. • when the quiet mode is set at the remote control, quiet mode led illuminates, the sound level will be automatically decreased 2 db (lo), decreased 3 db (hi, me)...

  • Page 29

    8.4. Automatic mode operation 1. When the automatic mode operation is selected, the indoor fan operates at slo fan speed for 25 seconds to sense intake air temperature and determine the 1st operation mode. 2. Operation mode will be determine again after 1 hour of operation, if the room temperature r...

  • Page 30

    8.5. Random auto restart control • if there is a power failure during air conditioner operation, 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 para...

  • Page 31

    31 cs-a7ckp cu-a7ckp5 / cs-a9ckp cu-a9ckp5 / cs-a12ckp cu-a12ckp5.

  • Page 32

    1. Vertical airflow direction • the louver swings up and down as shown above. • the louver does not swing when the indoor fan stops during operation at the upper limit. Heating mode • when the intake air temp. Reaches 38°c, the louver is changed from upper to lower limit. When the intake air temp fa...

  • Page 33

    8.10. Powerful mode operation purpose of this operation is to be obtain the setting temperature quickly. 1. Cooling and soft dry mode • when the powerful mode is set, the set temperature will be automatically decreased 3°c against the present setting temperature (lower temperature: 16°c). This opera...

  • Page 34

    8.11. Ionizer operation purpose to provide fresh air effect to user by producing minus ion in discharge air. Control condition a. Ionizer only operation. 1. When air-conditioner unit is at “off” condition (standby) and ion operation button at remocon is pressed. Fan & ionizer on, ion led illuminates...

  • Page 35

    Case 1a: ionizer only operation (12h delay timer on) case 2a: ionizer only operation (24h real time timer on) case 1b: ionizer only operation (12h delay timer off) case 2b: ionizer only operation (24h real time timer off) 3. Ionizer operation status is not memorised after off. After off, when operat...

  • Page 36

    Case 3a: operation mode + ionizer (12h delay timer on) case 4a: operation mode + ionizer (24h real time timer on) case 5a: ionizer only operation (24h real time timer on) case 6a: ionizer only operation (12 delay timer on) case 7a: operation mode + ionizer (12 delay timer on) case 3b: operation mode...

  • Page 37

    Note: 1. 24 times checking: actual ion on for 10s & off for 1s 30 min continuously for 24 times. 2. 24 times count will be cleared when following conditions happen. A) 24 times count over, b) ionizer cancel if press ion button or power reset, c) ion f/b sgnl ok. 3. Error protection will be cleared w...

  • Page 38

    38 cs-a7ckp cu-a7ckp5 / cs-a9ckp cu-a9ckp5 / cs-a12ckp cu-a12ckp5.

  • Page 39: 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 40

    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 41

    Manual five stages of adjustment can be made between 14° ~ 36°. Manual five stages of adjustment can be made between 0° ~ 61°. Heat pump model manual five stages of adjustment can be made between 14° ~ 36°. Swing up/down automatically move up/down automatically manual five stages of adjustment can b...

  • Page 42

    ■ pre-season inspection ● is the discharged air cold/warm? 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 ...

  • Page 43

    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 vertical airflow setting...

  • Page 44

    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 45

    1. The 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 ins...

  • Page 46

    Applicable piping kit cz-3f5, 7aen (c7ck, c9ck, a7ck, a9ck, v7ck, v9ck, w7ck, w9ck) cz-4f5, 7, 10an (c12ck, a12ck, v12ck, w12ck) 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 pl...

  • Page 47

    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 48

    3. For the embedded piping (this can be used for left rear piping & left bottom piping also.) 48 cs-a7ckp cu-a7ckp5 / cs-a9ckp cu-a9ckp5 / cs-a12ckp cu-a12ckp5.

  • Page 49

    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 3 (c7ck, c9ck, c12ck, v7ck, v9ck, v12ck) or 5 (a7ck, a9ck, a...

  • Page 50

    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 51

    Cutting and flaring the piping 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 ...

  • Page 52

    (1) * * connect the manifold gauge to the service port of 3-way valve. Measure the pressure. (2) * * keep it for 5-10 minutes. Ensure that the pressure indicated on the gauge is the same as that of measured during the first time. 10.3.5. (b) air purging of the piping and indoor unit the remaining ai...

  • Page 53

    Disposal of outdoor unit drain water • if a drain elbow is used, the unit should be placed on a stand which is taller than 3 cm. • if the unit is used in an area where temperature falls below 0°c for 2 or 3 days in succession, it is recommended not to use a drain elbow, for the drain water freezes a...

  • Page 54: 11 2-Way, 3-Way Valve

    11 2-way, 3-way valve 2-way valve (liquid side) 3-way valve (gas side) works shaft position shaft position service port shipping close close close (with valve cap) (with valve cap) (with cap) evacuation close close open (installation and (counter-clockwise) (clockwise) (push-pin) re-installation) op...

  • Page 55

    11.1.1. Evacuation of installation when installing 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 side of a charging set and the service port of a 3-way valve. • be sure to connect the...

  • Page 56

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

  • Page 57

    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 side of a charging set and the service port of the 3-way valve. • be sure to conn...

  • Page 58

    (lack of refrigerant in the refrigeration cycle) procedure: 1. Confirm that both the 2-way and 3-way valves are set to the open 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 servic...

  • Page 59

    (no refrigerant in the refrigeration cycle) procedure: 1. Connect the vacuum pump to the charge set’s centre hose. 2. Evacuation for approximately one hour. • confirm that the gauge needle has moved toward -0.1 mpa (-76 cmhg) [vacuum of 4 mmhg or less.] 3. Close the valve (low side) on the charge se...

  • Page 60

    (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 press the che...

  • Page 61

    Required tools: hexagonal wrench, adjustable wrench, torque wrenches, wrench to hold the joints and gas leak detector. The additional gas for air purging has been charged in the outdoor unit. However, if the flare connections have not been done correctly and there gas leaks, a gas cylinder and the c...

  • Page 62

    1. Confirm that both the 2-way and 3-way valves are set to the opened position. • remove the valve stem caps and confirm that the valve stems are in the opened 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 and wa...

  • Page 63

    11.2.3. Re-air purging (re-installation) 1. Confirm that both the 2-way and 3-way valves are set to the closed position. 2. Connect the charge set and a charging cylinder to the service port of the 3-way valve. • leave the valve on the charging cylinder closed. 3. Air purging. • open the valves on t...

  • Page 64

    (gas leakage) 1. Confirm that both the 2-way and 3-way valves are set to the open 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. 3. Open the valves (low side) on the c...

  • Page 65

    (no refrigerant in the refrigeration cycle) 1. Connect the vacuum pump to the charge set’s centre hose. 2. Evacuation for approximately one hour. • confirm that the gauge needle has moved toward -0.1 mpa (-76 cmhg) [vacuum of 4 mmhg or less.] 3. Close the valve (low side) on the charge set, turn off...

  • Page 66

    11.2.6. Gas charging (after evacuation) 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 pre...

  • Page 67: 12 Servicing Information

    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 of the front grille. (fig. 1) • remove the control boar...

  • Page 68

    − 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) − releasing connector lead wire ionizer. (fig. 5) − release t...

  • Page 69

    − 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 69 cs-a7ckp cu-a7ckp5 / cs-a9ckp cu-a9ckp5 / cs-a12ckp cu-a12ckp5.

  • Page 70

    • 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 71: 13 Troubleshooting Guide

    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 temperature and pressure of the ref...

  • Page 72

    13.1.1. Relationship between the condition of the air conditioner and pressure and electric current cooling mode heating mode condition of the air conditoner low pressure high pressure electric current during operation low pressure high pressure electric current during operation insufficient refrige...

  • Page 73: 14 Technical Data

    14 technical data 73 cs-a7ckp cu-a7ckp5 / cs-a9ckp cu-a9ckp5 / cs-a12ckp cu-a12ckp5.

  • Page 74

    220v outdoor temp. (°c) indoor wet bulb temp. 30 35 40 46 tc shc ip tc shc ip tc shc ip tc shc ip 17.0°c 1.98 1.50 0.53 1.85 1.44 0.57 1.72 1.39 0.61 1.57 1.32 0.66 19.0°c 2.00 0.58 19.5°c 2.18 1.57 0.54 2.04 1.51 0.58 1.89 1.46 0.62 1.72 1.39 0.67 22.0°c 2.37 1.63 0.55 2.22 1.57 0.59 2.06 1.51 0.63...

  • Page 75

    220v outdoor temp. (°c) indoor wet bulb temp. 30 35 40 46 tc shc ip tc shc ip tc shc ip tc shc ip 17.0°c 3.49 2.65 0.99 3.26 2.54 1.06 3.03 2.44 1.14 2.76 2.32 1.23 19.0°c 3.52 1.08 19.5°c 3.83 2.77 1.01 3.58 2.66 1.08 3.33 2.56 1.16 3.03 2.44 1.25 22.0°c 4.18 2.87 1.03 3.90 2.76 1.10 3.63 2.67 1.18...

  • Page 76

    76 cs-a7ckp cu-a7ckp5 / cs-a9ckp cu-a9ckp5 / cs-a12ckp cu-a12ckp5.

  • Page 77

    77 cs-a7ckp cu-a7ckp5 / cs-a9ckp cu-a9ckp5 / cs-a12ckp cu-a12ckp5.

  • Page 78

    78 cs-a7ckp cu-a7ckp5 / cs-a9ckp cu-a9ckp5 / cs-a12ckp cu-a12ckp5.

  • Page 79: 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. 79 cs-a7ckp cu-a7ckp5 / cs-a9ckp cu-a9ckp5 / cs-a12ckp cu-a12ckp5.

  • Page 80: 16 Replacement Parts List

    16 replacement parts list ref. No. Part name & description qty. Cs-a7ck cs-a9ck cs-a12ck remarks 1 chassy complete 1 cwd50c1246 ← ← 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 cwb30c...

  • Page 81: 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. 81 cs-a7ckp cu-a7ckp5 / cs-a9ckp cu-a9ckp5 / cs-a12ckp cu-a12ckp5.

  • Page 82: 18 Replacement Parts List

    18 replacement parts list ref. No. Part name & description qty. Cu-a7ck cu-a9ck cu-a12ck remarks 1 chassy ass’y 1 cwd50k2073 ← cwd50k2074 2 sound proof material 1 cwg302110 ← ← 3 fan motor bracket 1 cwd541030 ← ← 4 screw - fan motor bracket 2 cwh55413 ← ← 5 fan motor 1 cwa951119 ← cwa951121 0 6 scre...

  • Page 83

    19 electronic circuit diagram schematic diagram 1/3 • cs-a7ck / cu-a7ck • cs-a9ck / cu-a9ck • cs-a12ck / cu-a12ck (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 15 1 1...

  • Page 84

    Schematic diagram 2/3 q03 4.7k 10k e b c t01 5 8 13 2 a52d0022gb75 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/a1...

  • Page 85

    Schematic diagram 3/3 ic03 g i 16v c11 5v 12v i g ic04 c17 35v (nhg) db01 c14 25v 1k r36 50/60hz ac 220-240v motor fan cn-fm 5 4 3 1 cn-fb1 (ph-3) ry-pwr 250v 2a ac (wht) 511u znr01 regulator regulator + ~ ~ c12 400v c-fm c03 ssr01 511u znr03 l01 c19 510 r48 39k/2w r47 39k/2w r57 820 r03 4.7k r29 3....

  • Page 86

    86 cs-a7ckp cu-a7ckp5 / cs-a9ckp cu-a9ckp5 / cs-a12ckp cu-a12ckp5.

  • Page 87

    How to use electronic circuit diagram timer table test mode name time (when test point remarks short-circuited) 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 60 sec. 0 sec. Time save control 7 min. 4.2 sec. Anti-freezing 4 min....

  • Page 88

    19.1. Remote control 88 cs-a7ckp cu-a7ckp5 / cs-a9ckp cu-a9ckp5 / cs-a12ckp cu-a12ckp5.

  • Page 89

    19.2. Print pattern indoor unit printed circuit board top view 89 cs-a7ckp cu-a7ckp5 / cs-a9ckp cu-a9ckp5 / cs-a12ckp cu-a12ckp5.

  • Page 90

    19.3. Print pattern indoor unit printed circuit board bottom view 90 cs-a7ckp cu-a7ckp5 / cs-a9ckp cu-a9ckp5 / cs-a12ckp cu-a12ckp5 [maico] printed in malaysia.