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Panasonic cs-pa7dkd Service Manual

Manual is about: air circulation up to 10.10 m3/min

Summary of cs-pa7dkd

  • Page 1

    Cs/cu-pa7dkd cs/cu-pc7dkd cs/cu-pa9dkd cs/cu-pc9dkd room air conditioners 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 d...

  • 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-pa7dkd / cu-pa7dkd / cs-pc7dkd / cu-pc7dkd.

  • Page 3: Functions

    Operation start/stop operation mode selection automatic operation heating mode operation (for pa7dkd,pa9dkd) cooling mode operation soft dry mode operation air circulation mode operation (for pc7dkd,pc9dkd) mode indoor fan speed selection low speed medium speed high speed automatic speed airflow dir...

  • 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 150 (pa7dkd,pc7dkd,pa9dkd) or 2)high temperature or current...

  • Page 6: 3 Product Specifications

    6 3 product specifications cooling capacity heating 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 sup...

  • Page 7

    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-pa7dkd cu-pa7dkd length circulation inner ...

  • Page 8

    Cooling capacity heating 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 ...

  • 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-pa9dkd cu-pa9dkd length circulation inner di...

  • Page 10

    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 11

    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-pc7dkd cu-pc7dkd length circulation inner di...

  • Page 12

    14 0.5 1.3 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-w...

  • Page 13

    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-pc9dkd cu-pc9dkd length circulation inner di...

  • Page 14: 4 Dimensions

    4 dimensions indoor unit 61 165 49 (410) (43) front view installation plate hook gas side liquid side relative position between the unit and the 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...

  • Page 15

    Outdoor unit cu-pa7dkd 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-pa9dkd cu-pc7dkd cu-pc9dkd cs-pa7dkd / cu-pa7dkd / cs-pc7dkd / cu-pc7dkd 10cm 15.

  • Page 16

    Cs/cu-pa7dkd cs/cu-pa9dkd 5 refrigeration cycle diagram intake air sensor piping sensor 4-way valve piping sensor intake air sensor intake air sensor piping sensor piping sensor piping sensor piping sensor cs/cu-pc7dkd cs/cu-pc9dkd air quality sensor cooling heating air quality sensor cs-pa7dkd / cu...

  • Page 17: 6 Block Diagram

    Cs-pa7dkd/cu-pa7dkd 6 block diagram fm fm 2 cr201 3 4 1 r y -hot ssr202 ssr201 fuse r y -pwr outdoor unit receiver remote control fm 4-v alve compressor sensor indicator piping sensor o.L.P . Indoor unit cs-pa9dkd/cu-pa9dkd cs-pa7dkd / cu-pa7dkd / cs-pc7dkd / cu-pc7dkd 17 for pa7dkd, the power sourc...

  • Page 18

    Fm ssr201 sc fuse r y -pwr fm compressor cs-pc7dkd/cu-pc7dkd cs-pc9dkd/cu-pc9dkd receiver remote control sensor indicator cs-pa7dkd / cu-pa7dkd / cs-pc7dkd / cu-pc7dkd 18 power suppl y ac220v -230v 50hz for pc7dkd, the power source is 220v. For pc9dkd, the power source is 220v-230v..

  • Page 19: 7 Wiring Diagram

    C - r c - s indoor fan motor resistance( ) connecting y-b m y-r a cs-pa7dkd cs-pa9dkd cwa921308 cwa921329 395 325 275 260 y-b y-r cwa951419 cwa951419 compressor terminal signal receiver remote control cn-rcv br bl w r b b y/g indoor unit terminal board fuse 102 250v 3a y w b b b y y r y/g capacitor ...

  • Page 20

    Cs-pc7dkd/cu-pc7dkd cs-pc9dkd/cu-pc9dkd 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 21: 8 Operation Details

    21 8 operation details cs-pa7dkd / cu-pa7dkd / cs-pc7dkd / cu-pc7dkd 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 del...

  • Page 22

    22 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 23

    23 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 24

    8.3. Heating mode operation(only for pa7dkd,pa9dkd) when selecting the heating mode operation, the unit will operate according to the setting by the remote controller and the operation is as the following. Time delay safety control over load protection control when temperature of indoor heat exchang...

  • Page 25

    A b c d e f g h i j k l m n o p q r 2 42 34 32 30 off on 1' 58'' 30 30' 150' indoor heat exchanget temp. Intake temp. Basic time compressor indoor fan outdoor fan operation indicator 4-way valve automatic fan speed during heating operation, use remote controller to select auto fan speed mode. Indoor...

  • Page 26

    26 deice control deice operation is to protect the outdoor unit from freezing. Normal deice operation deicing starts 30 minutes after heating mode operation or 60 minutes after the latest deicing operation. If temperature of outdoor piping, tested by trs, falls to -3 (trs off) or below for continuou...

  • Page 27

    Time graph for overload deicing a b c d e f g h i j k l m n o p q 49 max 12’ overload control a-i i-l overload deicing(timer) l-m: warm booting control m-r overload control out door fan stop for 60' accumulatively 20’’ 20’’ 51 outdoor heat exchanger outdoor heat exchanger 10’’ 20’’ basic time compre...

  • Page 28

    8.4. Automatic mode operation standard for determining operation mode cooling mode soft dry mode heating mode cooling mode soft dry mode heating mode intake air temperature setting temperature (standard) 23 20 25 22 21 one hour after the above determination, the unit will operate according to the ta...

  • Page 29

    8.6 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 30

    30 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 31

    31 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 32

    32 8.7demo 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 i...

  • Page 33

    Auto heat cool dry off auto std fan speed air swing auto 8.9 about cursor key which points to “off” on remote control auto heat cool dry off auto std press "off/on" button fan speed air swing auto 1. 2. When the on/off button on the remote control is pressed, the cursor key which points to “off” wil...

  • Page 34

    34 8.12. Airflow direction control cooling soft dry operating mode determining operation mode manual auto manua auto 1 2 3 4 5 12 17 26 32 36 o o o o o 12 ~36 o o 9 o 9 21 29 44 55 o o o o o heating 9 ~55 o o airflow direction auto-control the left and right airflow direction louver can be adjusted ...

  • Page 35: Installation

    35 engage dealer or specialist for installation. If installation done by the user is defective, it will cause water leakage, electrical shock or fire. Use the specified cable (1.5mm ) and connect tightly for indoor/outdoor connection. Power supply connection to a circuit breaker for the permanent co...

  • Page 36

    Gas side piping ( ) 3/8" liquid side piping ( ) 1/4" additional drain hose ( ) to carry out the drainage test, remove the air filters and pour water into the heat exchanger. Vinyl tape (wide) ( ) apply after carrying out a drainage test. Bend the pipe as closely on the wall as possible, but be caref...

  • Page 37

    Installation works installation parts required tools 1. Installation of indoor, outdoor unit 1) select the best location 2) indoor unit installation installation plate 4 wooden screws 4 anchor bolts a level gauge philips screw driver electric drill hole-core drill( 70mm) side cutter or electrical pl...

  • Page 38

    38 height more than 2.5m 5cm 5cm 5cm 100cm 10cm 9.3. Outline of installation 9.3.1. Select the best location there should not be any heat source of steam near the unit. There should not be any obstacles to prevent the air circulation. A place where air circulation will be good. A place where drainag...

  • Page 39

    9.3.2. Indoor unit installation 39 the mounting wall is strong and solid enough to prevent it from vibration. 1. Mount the installation plate on the wall with four installation plate fixing screws. (if mounting the unit on the concrete wall,consider using anchor bolts.) always mount the installation...

  • Page 40

    40 model pipe size gas side liquid side pipe cutter slanted rough pipe reamer point down bar bar copper pipe handle yoke cone clamp handle improper flaring slanted when properly flared,the internal surface of the flare will evenly shine and be of even thickness. Since the flare part come into contac...

  • Page 41

    9.4.2. Connection of piping 41 remove the indoor piping pull the tube out of chassis. For the right piping 1. Pull the tube out of chassis. 2. Insert the tube and drain hose into the hole. 3. Insert the connecting cable into the indoor unit through the hole. Do not connect the unit to power supply. ...

  • Page 42

    Indoor unit piping flare nut pipings spanner or wrench torque wrench cap cap drain hose for the left piping 1. Route the indoor tubing with the drain hose to the hole. Pull out the drain hose. Exchange the hose and cap. 2. Insert the piping and connecting cable to indoor side through the hole. Outdo...

  • Page 43

    4. Indoor unit installation • hook the indoor unit onto the upper portion of installation plate. (engage the two hooks of the rear top of the indoor unit with the upper edge of the installation plate.) • ensure the hooks are properly seated on the installation plate by moving it left and right. 5. C...

  • Page 44

    A b 44 9.5. In case of embedded piping for the embedded piping follow the same procedure for left rear and left piping. 9.5.1. Replace the drain hose replace the drain hose and drain cap. Figure from the back of the indoor unit after installation. (for the left and left rear piping) drain cap drain ...

  • Page 45

    9.6. Connecting piping and the cable to outdoor unit 9.6.1. 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 tor...

  • Page 46

    46 9.7. Checking the drainage and connecting the cable to indoor unit 9.7.1. Checking the drainage 1. Remove the front grille from the cabinet when removing the front grille for maintenance purposes etc, carry out by the following procedures. A. Set the vertical airflow direction louver to the horiz...

  • Page 47

    9.7.2. Connect the cable to the indoor unit 47 cs-pc7dkd cs-pc9dkd 1(l) 2(n) 3 4 cs-pa7dkd cs-pa9dkd plug the inside and outside connecting cable can be connected without removing the front grille. Connecting cable between indoor unit and outdoor unit shall be approved polychloroprene sheathed 3 (pc...

  • Page 48

    9.8. Test running 9.8.1. Connect the power supply 1. Connect the power supply cord to independent power supply. • circuit breaker is necessary. 2. Prepare the remote control • insert two batteries • remove the cover from the back of the remote control. Insert two batteries • be sure that the (+) and...

  • Page 49: 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 50

    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 51

    (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 52

    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 53

    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 54

    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 55

    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 56: Disassembly Of The Parts

    56 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 and left) (fig. 3) 2.Release the two screws under ...

  • Page 57

    57 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 58

    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 reset. Resetting terminals fig 14 58 1. Release the tw...

  • Page 59: 12 Troubleshooting Guide

    59 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 60

    60 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 61: 13 Technical Data

    61 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 62

    Cs/cu-pa7dkd 30 32 34 36 38 40 42 44 220v 17 16 15 14 13 0.70 0.65 0.60 0.55 0.50 2.6 2.4 2.2 2.0 1.8 6.0 5.0 4.0 3.0 cooling characteristics cs-pa7dkd / cu-pa7dkd / cs-pc7dkd / cu-pc7dkd 62 i: current (a) q: cooling capacity (kw) gp: gas side piping pressure (mpa) o:outlet air temp( ) outdoor temp(...

  • Page 63

    Cs-pa7dkd / cu-pa7dkd / cs-pc7dkd / cu-pc7dkd 63 cs/cu-pa7dkd heating characteristics cs/cu-pa9dkd outdoor temp( ) [condition] room temp: 27/19 heating operation:at high speed piping length:5m i: current (a) q: heating capacity (kw) hp:gas side piping pressure (mpa) o:outlet air temp( ) 2.4 2.3 2.2 ...

  • Page 64: 14 Exploded View

    Cs-pa7dkd/cs-pc7dkd cs-pa9dkd/cs-pc9dkd 14 exploded view 64 35 1 3 37 2 26 33 15 18 24 9 31 32 28 25 30 32 31 29 10 12 7 11 22 20 27 21 17 34 14 19 23 4 6 5 off mode temp off/on on cancel set std timer fan speed air swing 16 36 cs-pa7dkd / cu-pa7dkd / cs-pc7dkd / cu-pc7dkd 13.

  • Page 65: 15 Replacement Parts List

    15 replacement parts list 65 cs-pa7dkd/cs-pc7dkd cs-pa9dkd/cs-pc9dkd no. Description&name q'ty cs-pa7dkd cs-pc7dkd cs-pa9dkd cs-pc9dkd re 1 chassis complete 1 cwd50c1348 cwd50c1348 cwd50c1348 cwd50c1348 2 fan motor 1 cwa921308 cwa921308 cwa921329 cwa921329 3 cross flow fan complete 1 cwh02c1030 cwh0...

  • Page 66: 16 Exploded View

    16 exploded view cu-pa7dkd/cu-pc7dkd 66 33 30 32 31 34 4 5 3 2 6 7 23 11 27 20 19 18 29 14 8 10 9 1 13 15 16 28 26 25 24 21 17 cu-pa9dkd/cu-pc9dkd cs-pa7dkd / cu-pa7dkd / cs-pc7dkd / cu-pc7dkd 12.

  • Page 67: 17 Replacement Parts List

    17 replacement parts list 67 cu-pa7dkd/cu-pc7dkd cu-pa9dkd/cu-pc9dkd no. Description&name q'ty cu-pa7dkd cu-pc7dkd cu-pa9dkd cu-pc9dkd re 1 base ass'y 1 cwd52k1108a cwd52k1106a cwd52k1108a cwd52k1106a 2 holder-fan motor 1 cwd541076 cwd541072 cwd541077 cwd541072 3 screw-f.M. Holder 2 xtt4d10cfj xtt4d...

  • Page 68

    A b c d e 2 3 4 5 f cs-pa7dkd / cu-pa7dkd / cs-pc7dkd / cu-pc7dkd 68.

  • Page 69

    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-pa7dkd / cu-pa7dkd / cs-pc7dkd / cu-pc7dkd 69.

  • Page 70

    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 ellow 1 2 terminal board outdoor unit cs-pa7dkd / cu-pa7dkd / cs-pc7dkd / cu-pc7dkd 70 for pa7dkd, the power source is 220v. For pa9dkd, the power source is 220v-230v..

  • Page 71

    A b c d e 1 2 3 4 5 f p50 p51 p52 p53 p54 p55 p56 p57 vsso vddo p30 p31 p32 p33 p34 p35 p47 p46 p45 p44 p43 p42 p41 p40 p67 p66 p65 si30 so30 sck30 p23 p24 p25 vdd1 an17 an16 stp motor c 4 timer earth indicator power outdoor fan drive signal indoor fan drive signal indoor fan air quality indicator 7...

  • Page 72

    5 6 7 8 9 10 p64 t001 p74 t051 p72 ic(vpp) an16 an15 an14 an13 an12 an1 1 comp -way valve auto receiver reset air quality sensor temp sensor n motor feedback 72 cs-pa7dkd / cu-pa7dkd / cs-pc7dkd / cu-pc7dkd.

  • Page 73

    14 11 12 13 ac220v-230v t erminal board 73 cs-pa7dkd / cu-pa7dkd / cs-pc7dkd / cu-pc7dkd for pa7dkd, the power source is 220v. For pa9dkd, the power source is 220v-230v..

  • Page 74

    74 cs-pa7dkd / cu-pa7dkd / cs-pc7dkd / cu-pc7dkd.