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Panasonic CS-PC12DKV Service Manual

Summary of CS-PC12DKV

  • Page 1

    Cs/cu-pc9dkv cs/cu-pc12dkv air conditioner warning this service information is designed for experienced repair technicians only and is not designed for use by the general public. It does not contain warnings or cautions to advise non-techical individuals of potential dangers in attempting to service...

  • Page 2: 1 Features

    2 1 features high efficiency air quality indicator comfort environment air filter with function to reduce dust and smoke auto restart control automatically restart after power failure 12-hour timer setting cs-pc9dkv / cu-pc9dkv / cs-pc12dkv / cu-pc12dkv.

  • Page 3: Functions

    Operation start/stop operation mode selection automatic operation cooling mode operation soft dry mode operation air circulation mode operation mode indoor fan speed selection low speed medium speed high speed automatic speed airflow direction control horizontal airflow direction control -auto contr...

  • Page 4

    Indoor unit demonstration mode when the remote control cannot be used or for repairing and testing ,please use this button. Power switch on/off signal receiving sound control keep pressing this button for 10seconds to turn on or turn off the signal receiving sound. Operation indication lamps power (...

  • Page 5

    Outdoor unit 5 panasonic anti-reverse protection to protect the compressor from reverse rotation when power off suddenly. Overload protector the 2-step overload protector is to protect the compressor when 1)temperature of compressor reaches 165 2)high temperature or current enters into the compresso...

  • Page 6: 3 Product Specifications

    Cooling capacity moisture removal power source airflow method air circulation indoor air (low) indoor air (medium) indoor air (high) outdoor air noise level electrical data piping connection port(flare piping) piping size(flare piping) drain hose power supply cord length (number of core-wire) dimens...

  • Page 7

    Heat exchanger description tube material fin type fpi refrigerant control device refrigeration oil refrigerant (r-22) thermostat protection device capillary air filter refrigerant circulation control device compressor capacitor fan motor capacitor unit cs-pc9dkv cu-pc9dkv length circulation inner di...

  • Page 8

    Cooling capacity moisture removal power source airflow method air circulation indoor air (low) indoor air (medium) indoor air (high) outdoor air noise level electrical data piping connection port(flare piping) piping size(flare piping) drain hose power supply cord length (number of core-wire) dimens...

  • Page 9

    Heat exchanger description tube material fin type fpi refrigerant control device refrigeration oil refrigerant (r-22) thermostat protection device capillary air filter refrigerant circulation control device compressor capacitor fan motor capacitor unit cs-pc12dkv cu-pc12dkv length circulation inner ...

  • Page 10: 4 Dimensions

    4 dimensions indoor unit 61 165 49 (410) (43) front view installation plate hook gas side liquid side installation plate (front view) drain port 770 air intake 250 49 61 5 side view 205 air outlet left piping hole right piping hole (79) off mode temp off/on on cancel set std timer fan speed air swin...

  • Page 11

    Outdoor unit cu-pc9dkv 650 61.6 10cm 100cm required space for installation unit : mm 123.8 62.2 61.6 88 88 650 668 250 230 530 55.8 293 air intake air outlet cu-pc12dkv 10cm 11 cs-pc9dkv / cu-pc9dkv / cs-pc12dkv / cu-pc12dkv.

  • Page 12

    Cs/cu-pc9dkv cs/cu-pc12dkv 5 refrigeration cycle diagram intake air sensor intake air sensor piping sensor piping sensor piping sensor piping sensor air quality sensor 12 cs-pc9dkv / cu-pc9dkv / cs-pc12dkv / cu-pc12dkv.

  • Page 13: 6 Block Diagram

    Fm ssr201 sc fuse ry -p w r fm compressor cs-pc9dkv/cu-pc9dkv cs-pc12dkv/cu-pc12dkv receiver remote control sensor indicator 13 power suppl y ac220v -230v 60hz cs-pc9dkv / cu-pc9dkv / cs-pc12dkv / cu-pc12dkv 6 block diagram.

  • Page 14: 7 Wiring Diagram

    Cs-pc9dkv/cu-pc9dkv cs-pc12dkv/cu-pc12dkv indicator auto switch (sw 01) signal receiver fuse r y -pwr cn-disp cn-disp 1 10 1 3 cn-rcv p(3) l(4) br bl y/g w c03 znr01 l01 c19 t01 ssr01 c-fm b fuse 102 250v 3a) y/g cn-air2 cn-air1 cn-th cn-fb 3 1 3 1 2 4 1 2 1 2 sensor(intake temp.) sensor(piping temp...

  • Page 15: 8 Operation Details

    15 8 operation details 8.1 . Cooling mode operation when selecting the cooling mode operation, the unit will operate according to the setting by the remote controller or the control panel on the indoor unit and the operation is as the following. Time delay safety control 3 min.----if the compressor ...

  • Page 16

    16 intake air temperature evaporater temperature 10 2 start stop 1.5 basic time comp. Indoor fan outdoor fan operation indicator 1 1 3 7 operation status time delay safety control compressor test control auto restart control anti-freezing control time d - g g - h h - o q - t : : : : operate stop a b...

  • Page 17

    17 automatic fan speed during soft dry operation, use remote controller to select auto fan speed mode. Indoor fan speed is at “lo-” 70 t2 40 t1 slo lo- off on off 10 6 70 t2 40 t1 10 slo slo lo- on off off off indoor fan compressor time graph for soft dry operation a b c d e f g h i j k l m n o p q ...

  • Page 18

    18 8.3. Automatic mode operation standard for determining operation mode cooling mode soft dry mode cooling mode soft dry mode intake air temperature setting temperature (standard) 23 25 22 one hour after the above determination, the unit will operate according to the table below. First determinatio...

  • Page 19

    8.5 air quality sensor control 20minutes max1 max2 max3 max0 max1 max2 maximum of rs maxr1 of previous measuring period updating of maxr max1 max0 max0 max1 max0 max1 max2 max1 max1 max2 max1 max2 max3 max2 max2 max3 max2 max3 20minutes 20minutes the following conditions should be fulfilled the init...

  • Page 20

    20 air quality control detecting of air quality(when the air conditioner is on standby.) rs/maxr will be calculated automatically every 2 seconds and the air quality level will be determined in accordance with the value below, signal of air quality sensor air quality level a i r q u a l i t y gettin...

  • Page 21

    21 added operation of air quality sensor when the air quality getting worse if the air pollution level changes from 0 to 2, the color of the air quality indicator changes as below, green orange (2 sec.) red when the air quality getting better (added operation ) if the air pollution level changes fro...

  • Page 22

    22 8.6 demo mode ( outdoor unit not needed) activate the demo mode: in demo mode, the air conditioner can be operated(if the outdoor unit is connected to the indoor unit); whenever you turned off the air conditioner, it will restart automatically into demo mode opertion. Keep the auto button on the ...

  • Page 23

    8.8 about cursor key which points to “off” on remote control 1. 2. When the on/off button on the remote control is pressed, the cursor key which points to “off” will appear or disappear to indicate the on/off status of the air conditioner. The air conditioner is running but the cursor key which poin...

  • Page 24

    24 8.11. Airflow direction control airflow direction auto-control the left and right airflow direction louver can be adjusted manually. When set at airflow direction auto-control with remote control,the louver swings up and down as shown in the table below. The louver does not swing when the indoor ...

  • Page 25

    9 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 (ø70...

  • Page 26

    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 27

    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 the room is good. A place where drainage can be easily done. A place where noise prevention is taken into ...

  • Page 28

    9.2.1. Select the best location (refer to "select the best location" section) 9.2.2. 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 distance...

  • Page 29

    Cs-pc9dkv / cu-pc9dkv / cs-pc12dkv / cu-pc12dkv - 29 -.

  • Page 30

    9.2.5. 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 x 1.5 mm 2 flexible cord, type designation 245 iec 57 or he...

  • Page 31

    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 at right, and then remove the ...

  • Page 32

    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 33

    (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. 9.3.5. (b) air purging of the piping and indoor unit the remaining air...

  • Page 34

    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. Evalu ation of the performance operate the unit f...

  • Page 35: 10 2-Way,3-Way Valve

    10 2-way,3-way valve 2-way valve (liquid side) works shaft position shaft position service port shipping close closed closed (with cap) air purging(installation and re- installation) open closed open (counter-clockwise) (clockwise) (push-pin) operation open open closed (counter-clockwise) (with cap)...

  • Page 36

    10.1. Evacuation of installation when installing an air conditioner, be sure to evacuate the air inside the indoor unit and pipes in the following procedure. Required tools: hexagonal wrench, adjustable wrench, torque wrench, wrench to hold the joints, gas leak detector, charging set and vacuum pump...

  • Page 37

    (indoor unit) (liquid side) (outdoor unit) open 2-way valve (gas side) closed 3-way valve closed closed low high 10.2. Pumping down (for re-installation) procedure 1.Confirm that both 2-way and 3-way valves are set to open positions. Remove the valve stem cap and confirm that the valve stems are in ...

  • Page 38

    10.3.Re-air purging (re-installation) (indoor unit) (liquid side) (outdoor unit) 2-way valve (gas side) open 3-way valve open low high open closed vacuum pump be sure to connect the end of the charging hose with the push pin to the service port. 2. 3. 4. 1.Connect a charging hose with a push pin to ...

  • Page 39

    10.4. Balance refrigerant of the 2-way,3-way walves (gas leakage) (indoor unit) (liquid side) (outdoor unit) 2-way valve (gas side) open 3-way valve open low high open closed vacuum pump procedure 1. 2. Leave the valve on the charge set closed. Connect the charge hose with the push-pin to the servic...

  • Page 40

    10.5. Evacuation (installation) (no refrigerant in the refrigeration cycle) (indoor unit) (liquid side) (outdoor unit) 2-way valve (gas side) open 3-way valve open low high open closed vacuum pump procedure 1. 2. Confirm that the gauge needle has moved toward -76cmhg (-0.1mpa) [vacuum of 4 mmhg or l...

  • Page 41

    10.6. Gas charging (after evacuation) (indoor unit) (liquid side) (outdoor unit) 2-way valve (gas side) open 3-way valve open low high open closed charging cylinder procedure 1.Connect the charge hose to the charging cylinder. 2.Purge the air from the charge hose. 3 open the valve (low side) on the ...

  • Page 42: Disassembly Of The Parts

    42 cs-pc9dkv / cu- / cs- / cu- pc9dkv pc12dkv pc12dkv 11 disassembly of the parts 1. Open the intake grille and pull it to the horizontal position. (fig. 1) 2. Pull up the intake grille until it falls off.(fig. 2) removal procedure for intake grille 1.Remove the two caps at the discharge port (right...

  • Page 43

    43 1 release tabs of the control box cover and detach the control box cover . Release the fixing screws of the control box. (fig. 6) removal procedure for electronic controller fig 6 2. Release the lead wire cn-fm, cn-fb, cn-air, cn-stm,cn-rcv , cn-disp and earth wire(yellow/green). Pull out the who...

  • Page 44

    44 cs-pc9dkv / cu- / cs- / cu- pc9dkv pc12dkv pc12dkv removal procedure for cross flow fan remote control reset if the display is chaotic or can not be adjusted, remove the back lid of the remote control and you will find the resetting terminals and shorten the two terminals using a screw driver to ...

  • Page 45: 12 Troubleshooting Guide

    45 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 compressor or fan. The normal outlet air temperature and pressure of the refri...

  • Page 46

    46 condition of the air conditioner insufficient refrigerant (gas leakage) clogged capillary tube short circuit in the indoor unit heat radiation deficiency of the outdoor unit insufficient compression cooling mode low pressure high pressure electric current during operation 12.2. Relationship betwe...

  • Page 47: 13 Technical Data

    47 thermostat characteristics soft dry mode cooling on cooling off set temperature = soft dry off soft dry on 1.5 in difference 1.0 in difference temperature setting intake air temperature cooling mode compressor on compressor off= set temperature 1.5 in difference temperature setting intake air tem...

  • Page 48: 14 Exploded View

    14 exploded view 48 cs-pc9dkv cs-pc12dkv 34 1 3 36 2 26 33 15 18 24 9 31 32 28 25 30 32 31 29 10 12 7 11 22 20 27 21 17 14 19 23 4 6 5 off mode temp off/on on cancel set std timer fan speed air swing 16 35 13 cs-pc9dkv / cu- / cs- / cu- pc9dkv pc12dkv pc12dkv.

  • Page 49: 15 Replacement Parts List

    No. Description&name q'ty cs-pc9dkv cs-pc12dkv re 1 chassis complete 1 cwd50c1348 cwd50c1348 2 fan motor 1 cwa921310 cwa921310 3 cross flow fan complete 1 cwh02c1030 cwh02c1030 4 evaporator 1 cwb30c1631 cwb30c1637 5 intake air sensor holder 1 cwh711013 cwh711013 6 discharge grille complete 1 cwe20c2...

  • Page 50: 16 Exploded View

    16 exploded view 50 cu-pc9dkv cu-pc12dkv 31 28 30 29 32 4 5 3 2 6 7 23 11 20 19 18 8 10 9 1 13 15 16 26 25 24 21 17 27 cs-pc9dkv / cu- / cs- / cu- pc9dkv pc12dkv pc12dkv.

  • Page 51: 17 Replacement Parts List

    17 replacement parts list 51 cu-pc9dkv/cu-pc12dkv no. Description&name q'ty cu-pc9dkv cu-pc12dkv re 1 base ass'y 1 cwd52k1106a cwd52k1106a 2 holder-fan motor 1 cwd541072 cwd541072 3 screw-f.M. Holder 2 xtt4d10cfj xtt4d10cfj 4 fan motor 1 cwa951427 cwa951427 5 fixing screw-fan motor 3 cwh55406j cwh55...

  • Page 52

    A b c d e 2 3 4 5 f cs-pc9dkv / cu- / cs- / cu- pc9dkv pc12dkv pc12dkv 52 1.

  • Page 53

    5 6 7 8 9 10 stp motor comp 4-way valve auto receiver reset air quality sensor temp sensor timer earth indicator power outdoor fan drive signal indoor fan drive signal indoor fan motor feedback air quality indicator cs-pc9dkv / cu-pc9dkv / cs-pc12dkv / cu-pc12dkv 53.

  • Page 54

    Ac220v-230v 60hz 14 11 12 13 o.L.P . Fan motor 1 3 blue capacitor compressor y ellow/green yellow blue red capacitor blue y ellow blue red y e llow 1 2 terminal board outdoor unit cs-pc9dkv / cu-pc9dkv / cs-pc12dkv / cu-pc12dkv 54.

  • Page 55

    55 cs-pc9dkv/cu-pc9dkv/cs-pc12dkv/cu-pc12dkv.