Panasonic CS-RE12NKR Service Manual

Other manuals for CS-RE12NKR: Operating Instructions Manual

Summary of CS-RE12NKR

  • Page 1

    © panasonic appliances air-conditioning (guangzhou) co,. Ltd. 2012. Unauthorized copying and distribution is a violation of law. Order no: papagz120712ce indoor unit outdoor unit cs-re9nkr cs-re12nkr cu-re9nkr cu-re12nkr table of contents 1. Safety precautions ..........................................

  • Page 2

    2 14.1 refrigeration cycle system .........................35 14.2 breakdown self diagnosis function...........36 15. Disassembly and assembly instructions ......38 15.1 indoor unit...................................................38 15.2 outdoor unit electronic controller complete removal procedur...

  • Page 3: 1. Safety Precautions

    3 caution warning warning 1. Safety precautions • read the following “safety precautions” carefully before perform any servicing. • electrical work must be installed or serviced by a licensed electrician. Be sure to use the correct rating of the power plug and main circuit for the model installed. •...

  • Page 4

    4 caution 16. Tighten the flare nut with torque wrench according to specified method. If the flare nut is over-tightened, after a long period, the flare may break and cause refrigerant gas leakage. 17. After completion of installation, confirm there is no leakage of refrigerant gas. It may generate ...

  • Page 5: 2. Specification

    5 2. Specification model indoor cs-re9nkr cs-re12nkr outdoor cu-re9nkr cu-re12nkr power supply phase, hz single, 50 single, 50 v 230-240 230-240 min rate max min rate max kw 0.90 2.50 3.00 0.90 3.50 3.90 btu/h 3070 8530 10230 3070 11940 13300 capacity kcal/h 770 2150 2580 770 3010 3350 running curre...

  • Page 6

    6 q-lo m 3 /min (ft 3 /m) 7.02 (248) 7.33 (258) lo m 3 /min (ft 3 /m) 7.67 (271) 8.95 (315) me m 3 /min (ft 3 /m) 8.97 (316) 10.24 (361) indoor airflow (heating) hi m 3 /min (ft 3 /m) 12.1 (427) 12.4 (437) hi (cooling) m 3 /min (ft 3 /m) 30.4 (1074) 35.6 (1257) outdoor airflow hi (heating) m 3 /min ...

  • Page 7: 3. Features

    7 3. Features • inverter technology o wider output power range o energy saving o quick cooling o more precise temperature control • long installation piping o cs/cu-re9/12nkr, long piping up to 15 meters. • easy to use remote control • quality improvement o random auto restart after power failure fo...

  • Page 8

    8 4. Location of controls and components 4.1 indoor unit 4.2 outdoor unit 4.3 remote control for normal operation, error reset and check button is not in use. Press reset button to restore the remote control’s default setting. Power green timer orange quiet green indicator powerful red off/on operat...

  • Page 9: 5. Dimensions

    9 5. Dimensions 5.1 indoor unit unit : : : : mm.

  • Page 10

    10 5.2 outdoor unit unit: mm.

  • Page 11

    11 6. Refrigeration cycle diagram coolin heating.

  • Page 12: 7. Block Diagram

    12 7. Block diagram.

  • Page 13: 8. Wiring Diagram

    13 8. Wiring diagram cs-re9nkr cu-re9nkr.

  • Page 14: Cs-Re12Nkr   Cu-Re12Nkr

    14 cs-re12nkr cu-re12nkr.

  • Page 15: 9. Printed Circuit Board

    15 9. Printed circuit board 9.1 indoor unit 9.1.1 main printed circuit board.

  • Page 16

    16 10. Installation instruction 10.1 select the best location 10.1.1 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...

  • Page 17

    17 wall indoor outdoor 15 mm sleeve for tube ass’y approx. 5 - 7 mm bushing for tube ass’y putty or caulking compound Ø 70 through hole 10.2 indoor unit 10.2.1 how to fix installation plate the mounting wall is strong and solid enough to prevent it from the vibration. The centre of installation plat...

  • Page 18

    18 10.2.3 indoor unit installation.

  • Page 19

    19 10.2.4 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 4x 1.5mm 2 flexible cords, type designation 60245 iec 57 or ...

  • Page 20

    20 connecting the piping to outdoor unit decide piping length and then cut by using pipe cutter. Remove burrs from cut edge. Make flare after inserting the flare nut (locate at valve) onto the copper pipe. Align center of piping to valves and then tighten with torque wrench to the specified torque a...

  • Page 21

    21 10.3.4 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 polychloroprene sheathed 4x 1.5mm 2 flexible cord, type designation 60245 iec 57 or heavier cord. 3 connect...

  • Page 22: 11.  Service Mode

    22 11. Service mode 11.1 auto off/on button 1. Auto operation mode once the auto off/on button is slightly pressed, the unit will immediately operate in auto operation. This operation can be used to operate air conditioner with limited function if remote control is misplaced or malfunction. 2. Test ...

  • Page 23

    23 11.3 operate and display of remote control 11.3.1 original setting 11.3.2 mode selecting button a uto, heat, cool, dry can be selected by pressing “mode” button. Initial display of lcd is as follow *keeping the button depressed continuously, the operation mode will change in the following order i...

  • Page 24

    24 11.3.7 timer setting button there are 4 types of timer setting by pressing timer setting button: on-timer, off-timer, on-off timer, off- on timer. 1) select button when the air conditioner is on, off-timer or off-on timer can be selected by pressing select button. When the air conditioner is turn...

  • Page 25: 12.  Operation Control

    25 12. Operation control 12.1 basic function 12.1.1 internal setting temperature once the operation starts, remote control setting temperature will be taken as base value for temperature shifting processes. These shifting processes are depending on the air conditioner settings and the operation envi...

  • Page 26

    26 12.1.4 heating operation 12.1.4.1 thermostat control • compressor is off when intake air temperature - internal setting temperature > +2.0 ℃ • compressor is on after waiting for 3 minutes, if the intake air temperature - internal setting temperature compressor off point -0.5k. 12.1.5 automatic op...

  • Page 27

    27 judge condition referance mode if indoor intake temp – remote control temp setting ≥ +3 cool mode if previously is cool / heat mode dry mode if previously is dry mode if -2 ≤ indoor intake temp. – remote control temp. Setting maintain current mode if indoor intake temp. – remote control temp. Set...

  • Page 28

    28 12.3 outdoor fan motor operation outdoor fan motor is operated with one fan speed only. It starts when compressor starts operation and it stops 30 seconds after compressor stops operation. 30 s compressor outdoor fan on on off off on 12.3.1 vertical airflow airflow direction 1. Automatic vertical...

  • Page 29

    29 2. For heating mode: note: the value of a, b, c, d will change according to the indoor temperature. 12.3.5 automatic restart control when the power supply is cut off during the operation of air conditioner, the compressor will re-operate within three to four minutes after power supply resumes. 12...

  • Page 30: 13.  Protection Control

    30 timer signal receiving sound during operation. Timer signal receiving sound when the air conditioner stops. 13. Protection control 13.1 protection control for all operations 13.1.1 time delay safety control ● the compressor will not turn on within 3 minutes from the moment operation stops, althou...

  • Page 31

    31 13.1.4 ipm (power transistor) protection control. 1. Dc peak current control ● when electric current to ipm exceeds set value of 7a(for re9nkr) and 15.7a(for re12nkr) the compressor will stop. It will restart after three minutes. ● if the set value is exceeded again within 30 seconds, the operati...

  • Page 32

    32 indoor piping temperature - indoor suction is under 5 ℃ . Indoor temperature and outdoor temperature is 20 ± 2 ℃ . Remote control setting 30 ℃ and hi fan speed. B. Control contents • compressor stops (and restart after 3 minutes) • if the conditions above happen 2 times within 20 minutes, the uni...

  • Page 33

    33 13.2.3 dew prevention control • to prevent dew formation at indoor unit discharge area. • this control starts if all conditions continue for 20 minutes: - operated with cooling or soft dry mode. - outdoor air temperature is less than 34 ℃ . • this control stopped if anyone of the following condit...

  • Page 34

    34 3. Hot start when the heating operation starts, the indoor fan stops and the compressor run with a certain frequency. This is to prevent the cold airflow from blowing. If the piping temperature rises to 19 ℃ , and the indoor fan speed and airflow direction varies with the indoor piping temperatur...

  • Page 35

    35 14. Troubleshooting guide 14.1 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 f...

  • Page 36

    36 14.1.2 relationship between the condition of the air conditioner and pressure and electric current cooling mode heating mode condition of the air conditioner low pressure high pressure electric current during operation low pressure high pressure electric current during operation insufficient refr...

  • Page 37

    37 14.2.3 error codes table code abnormality/protection judgment check emergency operation h00 normal h11 indoor/outdoor abnormal communication >1 minute after starting operation connecting cable, indoor/outdoor pcb ○ h14 indoor intake air temp sensor abnormality - intake air temperature sensor(defe...

  • Page 38

    38 warning 15. Disassembly and assembly instructions high voltage is generated in the electrical parts area by the capacitor. Ensure that the capacitor has discharged sufficiently before proceeding with repair work. Failure to heed this caution may result in electric shocks. 15.1 indoor unit 1. Open...

  • Page 39

    39 1. After front grille is taking off, remove the cover of control board and holder, and then the main pcb can be seen. 3. Drag out the supporting hook to the right side and pull up a bit the main pcb. Then release the lead wire connecting to cn-fm, cn-stm3, earth wire (yellow/green) on main pcb, a...

  • Page 40

    40 1. Separate the drain hose and the drain plate. 2. Pull out the discharge grille slightly. 1. Release fixing screws on both side, disassembly the fixing board from evaporator on the left side and pull out the whole evaporator. 2. Loose the fixing screw of the cross flow fan. 3. After removing the...

  • Page 41

    41 15.2 outdoor unit electronic controller complete removal procedure 1. Take off the terminal cover by releasing the 3 screws. Disconnect the 7 wires from the terminal and then the 3 screws fixed between terminal supporting panel and c-box casing can be released. 2. Release the 8 pieces screws on t...

  • Page 42

    42 5. Take of the compressor terminal cover. Disconnect the wire from the compressor terminal. 6. Release the c-box screw fixing on sound prevention board, and two screws fixing on terminal supporting board, and the earth wire fixing screw. Be aware to hold the c-box complete to avoid falling after ...

  • Page 43: 16.  Technical Data

    43 16. Technical data 16.1 operation characteristic 16.1.1 cs-re9nkr cu-re9nkr cooling characteristic at different outdoor air temperature.

  • Page 44

    44 cooling characteristic at different piping length.

  • Page 45

    45 heating characteristic at different outdoor air temperature.

  • Page 46

    46 heating characteristic at different piping length.

  • Page 47

    47 16.1.2 cs-re12nkr cu-re12nkr cooling characteristic at different outdoor air temperature.

  • Page 48

    48 cooling characteristic at different piping length.

  • Page 49

    49 heating characteristic at different outdoor air temperature.

  • Page 50

    50 heating characteristic at different piping length.

  • Page 51

    51 17. Exploded view and replacement pars list 17.1 indoor unit cs-re9nkr, cs-re12nkr.

  • Page 52

    52 no. Parts name q'ty cs-re9nkr cs-re12nkr remark 1 chassis complete 1 cwd50c1745 cwd50c1745 2 fan motor(dc,280-340v,30w) 1 arw7648ac arw7648ac 3 cross flow fan complete 1 cwh02c1095 cwh02c1095 4 evaporator 1 cwb30c4138 cwb30c3977 5 auxiliary tube ass'y 1 cwt01c5455 cwt01c5455 6 drain plug 1 cwh521...

  • Page 53

    53 17.2 outdoor unit cu-re9nkr, cu-re12nkr.

  • Page 54

    54 no. Parts name q'ty cu-re9nkr cu-re12nkr remark 1 chassis ass'y 1 cwd52k1262a cwd52k1303a 2 fan motor bracket 1 cwd541182 cwd541182 3 screw-fan motor bracket 2 cwh551148a cwh551148a 4 fan motor(ac,220-240v,25w) 1 cwa951814 ars8405ac 5 screw-fan motor mount 4 cwh551148a cwh551148a 6 propeller fan ...