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Mitsubishi Electric Mr. SLim SEZ-KD15NA, Техническое и сервисное руководство

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12

SEZ-KD15NA(4)

(External static pressure 0.06[in.WG](15Pa))  208/230V 60Hz

8

9

10

11

12

13

14

15

16

0

10

20

30

40

50

External static pressure  [in.WG](Pa)

[0.20]

[0.16]

[0.12]

[0.08]

[0.04]

Airflow rate(m

3

/min)[CFM]

[282]

[318]

[353]

[388]

[424]

[494]

[459]

[530]

[565]

High

Limit 

Rated point

Middle

Low

SEZ-KD15NA(4)

(External static pressure 0.02[in.WG](5Pa))  208/230V 60Hz

Airflow rate(m

3

/min)[CFM]

8

9

10

11

12

13

14

15

16

0

40

30

20

10

External static pressure  [in.WG](Pa)

[0.16]

[0.12]

[0.08]

[0.04]

[282]

[318]

[353]

[388]

[424]

[494]

[459]

[530]

[565]

Middle

Low

High

Limit 

Rated point

SEZ-KD15NA(4)

(External static pressure 0.20[in.WG](50Pa))  208/230V 60Hz

8

9

10

11

12

13

14

15

16

0

10

20

30

40

50

60

70

80

External static pressure  [in.WG](Pa)

[0.32]

[0.28]

[0.24]

[0.20]

[0.16]

[0.12]

[0.08]

[0.04]

Airflow rate(m

3

/min)[CFM]

[282]

[318]

[353]

[388]

[424]

[494]

[459]

[530]

[565]

Middle

Low

High

Limit 

Rated point

SEZ-KD15NA(4)

(External static pressure 0.14[in.WG](35Pa))  208/230V 60Hz

8

9

10

11

12

13

14

15

16

0

10

20

30

40

50

60

70

80

External static pressure  [in.WG](Pa)

[0.32]

[0.28]

[0.24]

[0.20]

[0.16]

[0.12]

[0.08]

[0.04]

Airflow rate(m

3

/min)[CFM]

[282]

[318]

[353]

[388]

[424]

[494]

[459]

[530]

[565]

Middle

Low

High

Limit 

Rated point

HWE0802B.qx  4/19/12  3:52 PM  Page 12

Содержание Mr. SLim SEZ-KD15NA

Страница 1: ...HEAT PUMP AIR CONDITIONERS TECHNICAL SERVICE MANUAL Model name Indoor unit Model name Indoor unit SEZ KD09NA 4 SEZ KD12NA 4 SEZ KD15NA 4 SEZ KD18NA 4 Series SEZ 2012 INDOOR UNIT WIRED REMOTE CONTROLLER ON OFF TEMP ...

Страница 2: ......

Страница 3: ...NTENTS 1 PART NAMES AND FUNCTIONS 2 2 SPECIFICATIONS 4 3 OUTLINES AND DIMENSIONS 14 4 WIRING DIAGRAM 15 5 REFRIGERANT SYSTEM DIAGRAM 17 6 HEATER CONTROL 18 7 TROUBLESHOOTING 21 8 DISASSEMBLY PROCEDURE 34 ...

Страница 4: ...ER CHECK OPERATION CLEAR TEST TEMP MENU BACK DAY MONITOR SET CLOCK ON OFF Set Temperature buttons Down Up Timer Menu button Monitor Set button Mode button Return button Set Time buttons Back Ahead Timer On Off button Set Day button Opening the door Start Stop button Fan Speed button Filter button return sign button Test Run button Service button Clear button Airflow Up Down button Louver button Op...

Страница 5: ... on if the corre sponding timer is set Up Down Air Direction indica tor The indicator shows the direc tion of the outcoming airflow One Hour Only indicator Displayed if the airflow is set to Low and downward during COOL or DRY mode Operation varies according to model The indicator goes off after one hour at which time the airflow di rection also changes Room Temperature display Shows the room temp...

Страница 6: ...al block Power outlet A Accessory Min size of wire Amperage of wire breaker Cooling 8100 0 06 0 51 67 to 86 19 to 30 Heating 10900 0 04 0 39 63 to 83 17 to 28 208 230V 60Hz Sirocco fan x 2 0 02 0 06 0 14 0 20 5 15 35 50 DC brushless motor 0 096 Direct driven 5 5 7 0 9 0 194 247 317 91 116 150 Galvanized 200 x 790 x 700 7 7 8 x 31 1 8 x 27 9 16 18 1 8 1 6 15 ø1 4 ø6 35 Flare ø3 8 ø9 52 Flare O D 1 ...

Страница 7: ...r outlet A Accessory Min size of wire Amperage of wire breaker Cooling 14100 0 09 0 74 67 to 86 19 to 30 Heating 18000 0 07 0 63 63 to 83 17 to 28 208 230V 60Hz Sirocco fan x 3 0 02 0 06 0 14 0 20 5 15 35 50 DC brushless motor 0 096 Direct driven 10 0 12 5 15 0 353 441 529 167 208 250 Galvanized 200 x 990 x 700 7 7 8 x 39 x 27 9 16 23 1 8 1 6 15 ø1 4 ø6 35 Flare ø1 2 ø12 7 Flare O D 1 1 4 32 30 34...

Страница 8: ...APPROXIMATE TERESHOLD OF HEARING FOR CONTINUOUS NOISE NC 60 NC 50 NC 40 NC 30 NC 20 NC 70 OCTAVE BAND SOUND PRESSURE LEVEL dB 0 dB 0 0002 µbar BAND CENTER FREQUENCIES Hz SEZ KD09NA 4 External static pressure 0 20 in WG 50Pa High Middle 33 SPL dB 29 Low 25 LINE 60Hz NOTCH 90 80 70 60 50 40 30 20 10 63 125 250 500 1000 2000 4000 8000 APPROXIMATE TERESHOLD OF HEARING FOR CONTINUOUS NOISE NC 60 NC 50 ...

Страница 9: ... 4000 8000 APPROXIMATE TERESHOLD OF HEARING FOR CONTINUOUS NOISE NC 60 NC 50 NC 40 NC 30 NC 20 NC 70 OCTAVE BAND SOUND PRESSURE LEVEL dB 0 dB 0 0002 µbar BAND CENTER FREQUENCIES Hz SEZ KD12NA 4 External static pressure 0 20 in WG 50Pa High Middle 35 SPL dB 31 Low 25 LINE 60Hz NOTCH 90 80 70 60 50 40 30 20 10 63 125 250 500 1000 2000 4000 8000 APPROXIMATE TERESHOLD OF HEARING FOR CONTINUOUS NOISE N...

Страница 10: ... 4000 8000 APPROXIMATE TERESHOLD OF HEARING FOR CONTINUOUS NOISE NC 60 NC 50 NC 40 NC 30 NC 20 NC 70 OCTAVE BAND SOUND PRESSURE LEVEL dB 0 dB 0 0002 µbar BAND CENTER FREQUENCIES Hz SEZ KD15NA 4 External static pressure 0 20 in WG 50Pa High Middle 39 SPL dB 36 Low 32 LINE 60Hz NOTCH 90 80 70 60 50 40 30 20 10 63 125 250 500 1000 2000 4000 8000 APPROXIMATE TERESHOLD OF HEARING FOR CONTINUOUS NOISE N...

Страница 11: ... 4000 8000 APPROXIMATE TERESHOLD OF HEARING FOR CONTINUOUS NOISE NC 60 NC 50 NC 40 NC 30 NC 20 NC 70 OCTAVE BAND SOUND PRESSURE LEVEL dB 0 dB 0 0002 µbar BAND CENTER FREQUENCIES Hz SEZ KD18NA 4 External static pressure 0 20 in WG 50Pa High Middle 39 SPL dB 36 Low 32 LINE 60Hz NOTCH 90 80 70 60 50 40 30 20 10 63 125 250 500 1000 2000 4000 8000 APPROXIMATE TERESHOLD OF HEARING FOR CONTINUOUS NOISE N...

Страница 12: ...ted point Limit 0 16 0 12 0 08 0 04 141 176 212 247 282 318 353 4 5 6 7 8 9 10 Airflow rate m3 min CFM 141 176 212 247 282 318 353 0 10 20 30 40 50 60 70 80 External static pressure in WG Pa SEZ KD09NA 4 External static pressure 0 20 in WG 50Pa 208 230V 60Hz 4 5 6 7 8 9 10 Airflow rate m3 min CFM 141 176 212 247 282 318 353 Middle Low High Limit Rated point 0 32 0 28 0 24 0 20 0 16 0 12 0 08 0 04 ...

Страница 13: ... m3 min CFM 212 282 247 353 388 318 424 Middle Low High Limit Rated point 0 20 10 30 40 50 60 70 80 SEZ KD12NA 4 External static pressure 0 20 in WG 50Pa 208 230V 60Hz 6 7 8 9 10 11 12 External static pressure in WG Pa 0 32 0 28 0 24 0 20 0 16 0 12 0 08 0 04 Airflow rate m3 min CFM 212 282 247 353 388 318 424 Middle Low High Limit Rated point 0 20 10 30 40 50 60 70 80 SEZ KD12NA 4 External static ...

Страница 14: ... 04 282 318 353 388 424 494 459 530 565 Middle Low High Limit Rated point SEZ KD15NA 4 External static pressure 0 20 in WG 50Pa 208 230V 60Hz 8 9 10 11 12 13 14 15 16 0 10 20 30 40 50 60 70 80 External static pressure in WG Pa 0 32 0 28 0 24 0 20 0 16 0 12 0 08 0 04 Airflow rate m3 min CFM 282 318 353 388 424 494 459 530 565 Middle Low High Limit Rated point SEZ KD15NA 4 External static pressure 0...

Страница 15: ...353 388 424 494 459 530 565 600 671 636 Middle Low High Limit Rated point SEZ KD18NA 4 External static pressure 0 20 in WG 50Pa 208 230V 60Hz 9 10 11 12 13 14 15 16 17 18 19 0 10 20 30 40 60 70 50 80 External static pressure in WG Pa 0 32 0 28 0 24 0 20 0 16 0 12 0 08 0 04 318 353 388 424 494 459 530 565 600 671 636 Middle Limit Rated point Low High Airflow rate m3 min CFM SEZ KD18NA 4 External st...

Страница 16: ...ir inlet Air outlet N M 175 5 6 29 32 7 32 Less than 300 Less than 550 11 13 16 21 21 32 More than 20 More than 10 57 2 1 4 57 2 1 4 1 31 32 5 29 32 30 19 32 17 23 32 11 13 16 17 23 32 More than 300 13 16 13 32 3 9 16 5 29 32 2 25 32 4 19 32 70 10 13 32 3 15 16 1 15 16 24 5 8 450 37 1 15 32 200 7 7 8 H 157 5 6 7 32 20 13 16 100 3 15 16 37 1 15 32 12 1 2 12 1 2 88 3 15 32 100 3 15 16 XJ K 100 3 15 ...

Страница 17: ...CN51 CONNECTOR HA TERMINAL A CN2L NAME SYMBOL EXPLANATION SW1 SW2 INDOOR CONTROLLER BOARD CN32 I B SYMBOL SYMBOL NAME CONNECTOR LOSSNAY CONNECTOR REMOTE SWITCH SWE ARRESTER SWITCH FOR MODEL SELECTION SWITCH FOR CAPACITY CODE CONNECTOR EMERGENCY OPERATION TH1 INTAKE AIR TEMP THERMISTOR TH2 PIPE TEMP THERMISTOR LIQUID TH5 COND EVA TEMP THERMISTOR TERMINAL BLOCK REMOTE CONTROLLER TRANSMISSION LINE TE...

Страница 18: ... HEATING NAME NAME SYMBOL SYMBOL SYMBOL I B I B W B OPTIONAL PARTS R B CN32 CN30 INDOOR CONTROLLER BOARD INDOOR CONTROLLER BOARD SW2 SW1 SW6 SYMBOL EXPLANATION NAME CN2L CN24 CONNECTOR HA TERMINAL A CN51 CN90 CN105 CN41 CONNECTOR CENTRALLY CONTROL CONNECTOR WIRELESS CONNECTOR RADIO FREQUENCY INTERFACE FUSE AC250V 6 3A FUSE X1 AUX RELAY TB15 FLOAT SWITCH RADIO FREQUENCY INTERFACE FOR RF THERMOSTAT ...

Страница 19: ...evaporator temperature thermistor TH5 Room temperature thermistor TH1 Refrigerant flow in cooling Refrigerant flow in heating Strainer 50 Strainer 50 Heat exchanger Refrigerant GAS pipe connection Flare Refrigerant LIQUID pipe connection Flare SEZ KD09NA 4 SEZ KD12NA 4 SEZ KD15NA 4 SEZ KD18NA 4 ...

Страница 20: ... ON Heater OFF Inlet air temp set temp Heater ON Inlet air temp set temp 1 8 F 2 5 C Set temp Set temp 1 8 F 2 5 C Inlet air temp Heater output OFF ON 6 2 Fan control Refer to the Installation Manual for function settings By setting the Mode No 23 in the Function Table in section 6 1 and using CN4Y on the optional parts PAC YU25HT the following patterns of fan control will become possible when DEF...

Страница 21: ...ble is used to connect a relay circuit for an interlocked operation with either an electric or a panel heater Connect the cable to CN24 on the indoor unit control board 2 Panel heater connector with a white connector This connector is used to perform an interlocked operation with a panel heater Depending on the indoor unit control board specification connect the cable to CN4Y as appropriate CN4Y f...

Страница 22: ... size 0 5 mm2 1 25 mm2 16 to 22 AWG Don t extend the cable more than 10 meters 32ft 4 Wiring restrictions Keep the length of the cable connecting to the circuit board of the indoor unit shorter than 10 meters 32ft Longer than 10 meters 32ft could cause improper operation Use a transit relay when extending wiring such as remote wiring Recommended circuit Wiring diagram 1 phase power supply 208V 230...

Страница 23: ...sensor error E6 E7 Indoor outdoor unit communication error P4 Drain sensor error P5 Drain pump error P6 Freezing Overheating protection operation EE Communication error between indoor and outdoor units P8 Pipe temperature error E0 E3 E5 Remote controller transmission error E1 E2 Remote controller control board error Fb Indoor unit control system error memory error etc E9 Indoor outdoor unit commun...

Страница 24: ...ntroller is not possible due to system start up Correct operation Connector for the outdoor unit s protection device is not connected Reverse or open phase wiring for the outdoor unit s power terminal block L1 L2 L3 Incorrect wiring between indoor and outdoor units incorrect polarity of S1 S2 S3 Remote controller wire short Note Operation is not possible for about 30 seconds after cancellation of ...

Страница 25: ...t refrigerant Abnormal high pressure 63H worked Overheating safeguard operation Abnormal temperature of heat sink Outdoor unit fan protection stop Compressor overcurrent interruption Abnormal of power module Abnormality of super heat due to low discharge temperature Abnormality such as overvoltage or voltage shortage and abnormal synchronous signal to main circuit Current sensor error Other errors...

Страница 26: ...roller LED 3 communication between indoor and outdoor units AUTO RESTART FUNCTION Indoor controller board This model is equipped with the AUTO RESTART FUNCTION When the indoor unit is controlled with the remote controller the operation mode set temperature and the fan speed are memorized by the indoor controller board The auto restart function sets to work the moment the power has restored after p...

Страница 27: ...alue of thermistor For characteristics refer to P1 above 2 Check contact failure of connector CN44 on the indoor controller board Refer to 7 5 Turn the power on again and check restart after inserting connector again 4 Check pipe liquid temperature with remote controller in test run mode If pipe liquid temperature is extremely low in cooling mode or high in heating mode refrigerant circuit may hav...

Страница 28: ... is defective Indoor controller board is defective 5 Defective outdoor fan control 6 Overcharge of refrigerant 7 Defective refrigerant circuit clogs 8 Bypass circuit of outdoor unit is defective Cooling or drying mode 1 Check clogging of the filter 2 Remove shields 4 Refer to 7 7 DC Fan motor FAN MOTOR INDOOR CONTROLLER BOARD 5 Check outdoor fan motor 67 Check operating condition of refrigerant ci...

Страница 29: ...nits When it is not the above mentioned problem of 1 3 4 Diagnose remote controllers a When RC OK is displayed Remote controllers have no problem Turn the power off and on again to check If abnormality generates again replace indoor controller board b When RC NG is displayed Replace remote controller c When RC E3 is displayed d When ERC 00 06 is displayed c d Noise may be causing abnormality If th...

Страница 30: ...cuit board to transmit signals Error Code Abnormal point and detection method Cause Countermeasure Fb Indoor controller board Abnormal if data cannot be read normally from the nonvolatile memory of the indoor controller board 1 Defective indoor controller board 1 Replace indoor controller board E1 or E2 Remote controller control board 1 Abnormal if data cannot be read normal ly from the nonvolatil...

Страница 31: ...oard is defective 2 LED2 on indoor controller board is blinking When LED1 on indoor controller board is also blinking Connection failure of indoor outdoor unit connecting wire When LED1 is lit 1 Mis wiring of remote controller wires Under twin triple indoor unit system 2 or more indoor units are wired together 2 Refrigerant address for outdoor unit is wrong or not set Under grouping control system...

Страница 32: ...e CN3C Indoor outdoor transmission 0 24VDC CNMF Fan motor output 1 4 294 340 VDC 5 4 15 VDC 6 4 0 6 5 VDC 7 4 Stop 0 or 15 VDC Run 7 5 VDC 0 15 pulse CNP Drain up mechanism output 200VAC CN2L LOSSNAY CN4Y For Fan control CN90 Wireless remote controller 1 VFG Voltage on the side of PC672 and C955 Same with the voltage between 7 and 4 of CNMF VCC Voltage between the C955 pins 15 VDC Same with the vo...

Страница 33: ...or outdoor transmission 0 24VDC CNMF Fan motor output 1 4 294 340 VDC 5 4 15 VDC 6 4 0 6 5 VDC 7 4 Stop 0 or 15 VDC Run 7 5 VDC 0 15 pulse CNP Drain up mechanism output 200VAC CN2L LOSSNAY CN4Y For Fan control CN90 Wireless remote controller 1 VFG Voltage on the side of PC672 and C955 Same with the voltage between 7 and 4 of CNMF VCC Voltage between the C955 pins 15 VDC Same with the voltage betwe...

Страница 34: ... Part temperature 10 C 50 F 30 C 86 F Pipe temperature thermistor liquid TH2 Wiring diagram Check method and criterion Part name Normal 8kΩ 20kΩ Abnormal Opened or short circuited Motor Board with build in motor Current detecting resistor Regulator Hall IC Motor winding Power device Pre driver Vm Power supply for motor Vcc Power supply for control Vsp Speed command voltage PG Pulse output for rota...

Страница 35: ...tor CNMF Measure the voltage in the indoor controller circuit board TEST POINT 1 VDC between 1 and 4 of the fan connector VDC DC294 340V TEST POINT 2 VCC between 5 and 4 of the fan connector VCC DC15V Wiring recovery Replace drain pump DP Replace indoor controller board Replace the fan motor Replace indoor controller board I B Replace fan motor MF Replace indoor controller board Replace the fan mo...

Страница 36: ...ve the two fixing screws on the cover A to remove it 2 Thermistor Intake air 1 Remove the control box cover according to the procedure in section 1 1 Pull out the thermistor holder B and thermis tor C on the control box A Fig 1 Fig 2 B C Fig 3 DISASSEMBLY PROCEDURE 8 Exercise caution when removing heavy parts ...

Страница 37: ...on of the arrow 1 2 Remove the fixing screws on the bottom plate D E to remove it 2 Removing the drainpan 1 Pull out the drain pan in the direction of the arrow 1 Note Drain the water out of the drain pan before removing it To avoid dew condensation use insulated screws in the places marked with circles in Fig 6 D E a a a a a Tab Fig 4 Fig 5 Insulation material E Fig 6 ...

Страница 38: ...at exchanger cover 1 Remove the four fixing screws on the heat exchanger cover F to remove it 3 Removing the thermistor 1 Remove the thermistor G from the thermistor holder H on the copper tube Thermistor size Liquid pipe ø3 8inch ø8mm Condenser evaporator ø1 4inch ø6mm F Fig 7 G H Fig 8 Exercise caution when removing heavy parts ...

Страница 39: ... screws to take the top half of the fan casing off Fig 12 Exercise caution when removing heavy parts 2 Removing the fan casing bottom half 1 Squeeze the tabs on the fan casing to remove it in the direction of arrow 2 a a Tab Fig 10 5 Fan and fan motor 1 Removing the filter and the bottom plate 1 Push down the tab on the filter and pull out the filter in the direction of the arrow 1 2 Remove the fi...

Страница 40: ...move it 7 Heat exchanger 1 Remove the drain pan according to the proce dure in section 3 2 Remove the heat exchanger cover according to the procedure in section 4 2 3 Removing the cover 1 Remove the two fixing screws on the cover L to remove it 4 Removing the Heat exchanger 1 Remove the fixing screws on the heat exchanger M to remove it L Fig 15 M Fig 16 Exercise caution when removing heavy parts ...

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Страница 44: ...http Global MitsubishiElectric com HWE0802B New publication effective Apr 2012 Specifications subject to change without notice ...

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