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Panasonic CS-A12BKP Service Manual

Summary of CS-A12BKP

  • 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 33 10 installation instructions 38 © 2001 matsushita air-conditioning corp. Sdn. Bhd. (183914d). All rights re...

  • Page 2: 1 Features

    • high efficiency • compact design • comfort environment − 8 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 fron...

  • 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) 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 •...

  • Page 6: 3 Product Specifications

    3 product specifications unit cs-a7bk cu-a7bk power source phase, voltage, cycle (1) (4) single, 220 - 230, 50 hz (2) single, 220 - 240, 50 hz cooling capacity kw (kcal/h) (1) (4) 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) (4) 2.20 - 2.25 ...

  • Page 7

    Note: dimensions height inch (mm) 10 - 13/16 (275) 21 - 1/4 (540) width inch (mm) 31 - 15/32 (799) 30 - 23/32 (780) depth inch (mm) 8 - 9/32 (210) 11 - 3/8 (289) net weight lb (kg) 20 (9.0) 64 (29.0) compressor type — rotary (1 cylinder) rolling piston type motor type — induction (2-poles) rated out...

  • Page 8

    Unit cs-a9bk cu-a9bk power source phase, voltage, cycle (1) (4) single, 220 - 230, 50 hz (2) single, 220 - 240, 50 hz (3) single, 220, 50 hz cooling capacity kw (kcal/h) (1) (4) 2.65 - 2.70 (2,280 - 2,320) kw (btu/h) (2) 2.65 - 2.65 (9,040 - 9,040) kw (kcal/h) (3) 2.65 (2,280) heating capacity kw (k...

  • Page 9

    Note: piping connection port (flare piping) inch inch g ; half union 3/8” l ; half union 1/4” g ; 3-way valve 3/8” l ; 2-way valve 1/4” pipe size (flare piping) inch inch g ; (gas side) 3/8” l ; (liquid side) 1/4” g ; (gas side) 3/8” l ; (liquid side) 1/4” drain hose inner diameter mm 12 — length mm...

  • Page 10

    Unit cs-a12bk cu-a12bk power source phase, voltage, cycle (1) (4) single, 220 - 230, 50 hz (2) single, 220 - 240, 50 hz (3) single, 220, 50 hz cooling capacity kw (kcal/h) (1) (4) 3.52 - 3.60 (3,030 - 3,100) kw (btu/h) (2) 3.52 - 3.57 (12,000 - 12,170) kw (kcal/h) (3) 3.52 (3,030) heating capacity k...

  • Page 11

    Note: piping connection port (flare piping) inch inch g ; half union 1/2” l ; half union 1/4” g ; 3-way valve 1/2” l ; 2-way valve 1/4” pipe size (flare piping) inch inch g ; (gas side) 1/2” l ; (liquid side) 1/4” g ; (gas side) 1/2” l ; (liquid side) 1/4” drain hose inner diameter mm 12 — length mm...

  • Page 12: 4 Dimensions

    4 dimensions 12 cs-a7bkp cu-a7bkp5 / cs-a7bkp cu-a7bkp6 / cs-a9bkp cu-a9bkp5 / cs-a9bkp cu-a9bkp6 / cs-a12bkp cu-a12bkp5 / cs-a12bkp cu-a12bkp6.

  • Page 13

    13 cs-a7bkp cu-a7bkp5 / cs-a7bkp cu-a7bkp6 / cs-a9bkp cu-a9bkp5 / cs-a9bkp cu-a9bkp6 / cs-a12bkp cu-a12bkp5 / cs-a12bkp cu-a12bkp6.

  • Page 14

    5 refrigeration cycle diagram 14 cs-a7bkp cu-a7bkp5 / cs-a7bkp cu-a7bkp6 / cs-a9bkp cu-a9bkp5 / cs-a9bkp cu-a9bkp6 / cs-a12bkp cu-a12bkp5 / cs-a12bkp cu-a12bkp6.

  • Page 15: 6 Block Diagram

    6 block diagram 15 cs-a7bkp cu-a7bkp5 / cs-a7bkp cu-a7bkp6 / cs-a9bkp cu-a9bkp5 / cs-a9bkp cu-a9bkp6 / cs-a12bkp cu-a12bkp5 / cs-a12bkp cu-a12bkp6.

  • Page 16: 7 Wiring Diagram

    Remarks b : blue br : brown bl : black gry : gray o : orange p : pink r : red w : white y/g : yellow/green power supply cord destination • europe • oceania • turkey • argentina resistance of indoor fan motor windings model cs-a7bk cs-a9bk cs-a12bk connection cwa921060 blue-yellow 371.0 Ω yellow-red ...

  • 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 anti-dew formation 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...

  • Page 19

    Cooling operation time diagram 19 cs-a7bkp cu-a7bkp5 / cs-a7bkp cu-a7bkp6 / cs-a9bkp cu-a9bkp5 / cs-a9bkp cu-a9bkp6 / cs-a12bkp cu-a12bkp5 / cs-a12bkp cu-a12bkp6.

  • Page 20

    Time delay safety control starting current control anti-freezing control compressor reverse rotation protection control compressor 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 reache...

  • Page 21

    Soft dry operation time diagram 21 cs-a7bkp cu-a7bkp5 / cs-a7bkp cu-a7bkp6 / cs-a9bkp cu-a9bkp5 / cs-a9bkp cu-a9bkp6 / cs-a12bkp cu-a12bkp5 / cs-a12bkp cu-a12bkp6.

  • Page 22

    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 23

    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 24

    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 25

    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 26

    Normal deicing time diagram overload deicing time diagram 26 cs-a7bkp cu-a7bkp5 / cs-a7bkp cu-a7bkp6 / cs-a9bkp cu-a9bkp5 / cs-a9bkp cu-a9bkp6 / cs-a12bkp cu-a12bkp5 / cs-a12bkp cu-a12bkp6.

  • Page 27

    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 28

    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 29

    8.8. Remote control signal receiving sound • long beep sound will be heard when:- − stopping the air conditioner using on/off switch. − stopping the sleep mode. − stopping the powerful mode. − stopping the economy mode. • short beep sound will be heard for others. • to switch off the beep sound:- pr...

  • Page 30

    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 31

    8.11. Economy mode operation purpose of this operation is to save or reduced electrical power consumption of the room air conditioner. However consumer is advised to use economy mode operation after the room temperature reaches the desired temperature. 1. Cooling and soft dry mode • when the economy...

  • Page 32

    8.12. 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. This operation automatically will be...

  • Page 33: 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 34

    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 35

    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 swing up/down automatically manual five stages of adjustment can ...

  • Page 36

    ■ 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 37

    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 38: 10.1. Safety Precautions

    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 39

    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 40

    Applicable piping kit cz-3f5, 7aen (c7bk, c9bk, a7bk, a9bk, v7bk, v9bk, w7bk, w9bk) cz-4f5, 7, 10an (c12bk, a12bk, v12bk, w12bk) 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 41: 10.2. Indoor Unit

    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 42

    3. For the embedded piping (this can be used for left rear piping & left bottom piping also.) 42 cs-a7bkp cu-a7bkp5 / cs-a7bkp cu-a7bkp6 / cs-a9bkp cu-a9bkp5 / cs-a9bkp cu-a9bkp6 / cs-a12bkp cu-a12bkp5 / cs-a12bkp cu-a12bkp6.

  • Page 43

    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 (c7bk, c9bk, c12bk, v7bk, v9bk, v12bk) or 5 (a7bk, a9bk, a...

  • Page 44: 10.3. Outdoor Unit

    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 45

    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 46

    (1) * * connect the manifold gauge to the service port of 3-way valve. Measure the pressure. 10.3.6. Connect the cable to the outdoor 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 polychloropren...

  • Page 47

    10.3.7. Pipe 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), p...

  • Page 48

    Note: these equipment shall be connected to a suitable mains network with a main impedance less than the following: cs-a9bkp / cu-a9bkp5: 0.44 Ω cs-c12bkp / cu-c12bkp5: 0.47 Ω cs-a12bkp / cu-a12bkp5: 0.47 Ω cs-v12bkp / cu-v12bkp5: 0.45 Ω cs-w12bkp / cu-w12bkp5: 0.45 Ω check items is there any gas le...

  • Page 49: 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 50

    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 51

    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 52

    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 53

    (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 54

    (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 55

    (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 56

    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 57

    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 58

    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 59

    (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 60

    (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 61

    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 62: Removal Procedures

    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 63

    − 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 64

    − 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 64 cs-a7bkp cu-a7bkp5 / cs-a7bkp cu-a7bkp6 / cs-a9bkp cu-a9bkp5 / cs-a9bkp cu-a9...

  • Page 65

    • 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 66: 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 67

    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 68: 14 Technical Data

    14 technical data 68 cs-a7bkp cu-a7bkp5 / cs-a7bkp cu-a7bkp6 / cs-a9bkp cu-a9bkp5 / cs-a9bkp cu-a9bkp6 / cs-a12bkp cu-a12bkp5 / cs-a12bkp cu-a12bkp6.

  • Page 69

    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 70

    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 71

    71 cs-a7bkp cu-a7bkp5 / cs-a7bkp cu-a7bkp6 / cs-a9bkp cu-a9bkp5 / cs-a9bkp cu-a9bkp6 / cs-a12bkp cu-a12bkp5 / cs-a12bkp cu-a12bkp6.

  • Page 72

    72 cs-a7bkp cu-a7bkp5 / cs-a7bkp cu-a7bkp6 / cs-a9bkp cu-a9bkp5 / cs-a9bkp cu-a9bkp6 / cs-a12bkp cu-a12bkp5 / cs-a12bkp cu-a12bkp6.

  • Page 73

    73 cs-a7bkp cu-a7bkp5 / cs-a7bkp cu-a7bkp6 / cs-a9bkp cu-a9bkp5 / cs-a9bkp cu-a9bkp6 / cs-a12bkp cu-a12bkp5 / cs-a12bkp cu-a12bkp6.

  • Page 74: 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. 74 cs-a7bkp cu-a7bkp5 / cs-a7bkp cu-a7bkp6 / cs-a9bkp cu-a9bkp5 / cs-a9bkp cu-a9bkp6 / cs-a12bkp cu-a12bkp5 / cs-a12bkp cu-a12bkp6.

  • Page 75: 16 Replacement Parts List

    16 replacement parts list ref. No. Part name & description qty. Cs-a7bk cs-a9bk cs-a12bk 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 cwb30c...

  • Page 76: 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. 76 cs-a7bkp cu-a7bkp5 / cs-a7bkp cu-a7bkp6 / cs-a9bkp cu-a9bkp5 / cs-a9bkp cu-a9bkp6 / cs-a12bkp cu-a12bkp5 / cs-a12bkp cu-a12bkp6.

  • Page 77: 18 Replacement Parts List

    18 replacement parts list ref. No. Part name & description qty. Cu-a7bk cu-a9bk cu-a12bk remarks 1 chassy ass’y 1 cwd50k2045a ← cwd50k2044a 2 sound proof material 1 cwg302110 ← ← 3 fan motor bracket 1 cwd541030 ← ← 4 screw - fan motor bracket 2 cwh55413 ← ← 5 fan motor 1 cwa951087 ← cwa951117 0 6 sc...

  • Page 78: 19 Electronic Parts List

    19 electronic parts list symbol description & name part no. Bz101 sound generator a48040 c-fm sh capacitor a31698 cr01 surge absorber j0hbjy000003 ct01 transformer a40322 d08, d10, d11 diode b0acck000005 (cwa742634 & cwa742633 only) d13 diode b0acck000005 d14 diode a54rb501v-40 db01 diode a54cs1vb20...

  • Page 79

    20 electronic circuit diagram schematic diagram 1/3 • cs-a7bk / cu-a7bk • cs-a9bk / cu-a9bk • cs-a12bk / cu-a12bk (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 80

    Schematic diagram 2/3 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 p5...

  • Page 81

    Schematic diagram 3/3 ic03 g i 16v 100 µ c11 – + 5v 12v i g ic04 c17 3300 µ 35v (nhg) + – + – c14 470 µ 25v 1k r36 50/60hz ac 220-230-240v cn-fm 5 4 3 1 3 2 cn-fb1 1 (ph-3) ry-pwr 250v 2a ac (wht) 511u znr01 regulator regulator 1 2 0.1 µ c12 400v 1.5 µ c-fm 0.047 µ c03 ssr01 511u znr03 125 µ h l01 0...

  • Page 82

    82 cs-a7bkp cu-a7bkp5 / cs-a7bkp cu-a7bkp6 / cs-a9bkp cu-a9bkp5 / cs-a9bkp cu-a9bkp6 / cs-a12bkp cu-a12bkp5 / cs-a12bkp cu-a12bkp6.

  • Page 83

    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 84: 20.1. Remote Control

    20.1. Remote control 84 cs-a7bkp cu-a7bkp5 / cs-a7bkp cu-a7bkp6 / cs-a9bkp cu-a9bkp5 / cs-a9bkp cu-a9bkp6 / cs-a12bkp cu-a12bkp5 / cs-a12bkp cu-a12bkp6.

  • Page 85: 20.2. Print Pattern

    20.2. Print pattern indoor unit printed circuit board top view 85 cs-a7bkp cu-a7bkp5 / cs-a7bkp cu-a7bkp6 / cs-a9bkp cu-a9bkp5 / cs-a9bkp cu-a9bkp6 / cs-a12bkp cu-a12bkp5 / cs-a12bkp cu-a12bkp6.

  • Page 86: 20.3. Print Pattern

    20.3. Print pattern indoor unit printed circuit board bottom view 86 cs-a7bkp cu-a7bkp5 / cs-a7bkp cu-a7bkp6 / cs-a9bkp cu-a9bkp5 / cs-a9bkp cu-a9bkp6 / cs-a12bkp cu-a12bkp5 / cs-a12bkp cu-a12bkp6 [macc] printed in malaysia.