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'14•SRK-T-164

'09•SRK-DB-087D

Outdoor fan motor error

Rotor lock

(7) Phenomenon observed after shortcircuit, wire breakage on sensor

(a) Indoor unit

Defective fan motor, connector poor

connection, defective outdoor PCB

Defective compressor, defective

outdoor PCB

Sensor

Operation

mode

Phenomenon

Shortcircuit

Disconnected wire

Room temperature

sensor

Cooling

Heat exchanger

sensor

Cooling

Humidity sensor

Cooling

■

Humidity sensor operation

Failure mode

Control input circuit resding

Air conditioning system operation

①
②
①②
①

②

See pages 53.

main

'09•SRK-SM-087D

(8) Checking the indoor electrical equipment

(a) Indoor PCB check procedure

(b) Outdoor unit

Is there voltage between terminal

blocks

①

and

②

? (AC 220V)

Indoor electrical components

are normal.

Is the voltage between terminal

blocks

②

and

③

oscillating between

DC 0 and 20V?

Inspect

If the package components

are not damaged, replace the

fuse and perform an operation

check again.

Compressor stop.

power source

for outdoor unit.

Replace indoor PCB.

Is the fuse burnt out? (3.15 A)

YES

(b) Indoor unit fan motor check procedure

(i) Indoor PCB output check

① ④

⑤

(ii) Fan motor resistance check

⑥

⑤

④

③

②

①

⑥

⑤

④

③

②

①

DC15V

Indoor PCB

DC 308~336V

DC several V
(4~6 V)

CNU

(–)

GND

Blue

Yellow

White

Black

Sensor

Operation

mode

Phenomenon

Shortcircuit

Disconnected wire

Heat exchanger
sensor

Cooling

Ourdoor air
temperature sensor

Cooling

Discharge pipe

sensor

All modes

Measuring point

Resistance when normal

① − ③

−

④ − ③

−

Measuring
point

Resistance when
normal

① − ③
④ −
⑤ −

③

1)
2)
3)

③

several V (4

6V)

Содержание SRK19CNS-S

Страница 1: ...RESIDENTIAL AIR CONDITIONING TECHNICAL MANUAL PARTS LIST WALL MOUNTED TYPE RESIDENTIAL AIR CONDITIONERS Split system air cooled cooling only type SRK21CNS S6 SRK26CNS S6 Manual No 14 SRK T 164...

Страница 2: ......

Страница 3: ...14 SRK T 164 TECHNICAL MANUAL...

Страница 4: ...ouver control 31 30 4 Custom cord switching procedure 30 3 Auto restart function 2 Unit ON OFF button 1 Operation control function by remote control 28 8 Installation location setting 33 10 Outline of...

Страница 5: ...TROL 45 0HENOMENON OBSERVED AFTER SHORTCIRCUIT WIRE BREAKAGE ON SENSOR 43 HECKING THE INDOOR ELECTRICAL EQUIPMENT 44 How to read the model name Example SRK 21 C Series code Cooling only type Product c...

Страница 6: ...trol Room temperature control Microcomputer thermostat Operation Display RUN Green TIMER Yellow HI POWER Green 3D AUTO Green Safety devices Compressor overheat protection Frost protection Serial signa...

Страница 7: ...Room temperature control Microcomputer thermostat Operation Display RUN Green TIMER Yellow HI POWER Green 3D AUTO Green Safety devices Compressor overheat protection Frost protection Serial signal er...

Страница 8: ...48 48 5 7 295 4 7 9 15 Service space 100 Unit 54 46 5 Service space Service space Service space Installation plate 491 1 520 8 559 1 58 61 5 2 EXTERIOR DIMENSIONS 1 Indoor units Model SRK21CNS S6 Hol...

Страница 9: ...6 35 1 4 Flare Content 15 88 5 8 Flare 65 D C B A E Wireless remote control G F Unit mm 77 53 5 633 5 703 5 792 15 7 7 44 5 44 5 301 8 8 5 50 50 450 349 299 106 886 106 100 100 50 49 5 221 5 25 25 Se...

Страница 10: ...e more than 15mm 3 Where the unit is subject to strong winds lay it in such a direction that the blower outlet faces perpendicularly to the dominant wind direction 4 Leave 1m or more space above the u...

Страница 11: ...st not protrude more than 15mm 3 Where the unit is subject to strong winds lay it in such a direction that the blower outlet faces perpendicularly to the dominant wind direction 4 Leave 1m or more spa...

Страница 12: ...10 14 SRK T 164 3 Wireless remote control Unit mm 60 17 3 150 Unit mm 60 17 3 150...

Страница 13: ...OUTSIDE T TERMINAL 1 2 N 3 UNIT BLOCK L HEAT EXCHANGER BOARD CIRCUIT PRINTED CNR CNX2 CNX1 RED WHITE RED WHITE BLACK BLUE YELLOW BLACK CNG CNE DISPLAY WIRELESS RECEIVER CNF BACK UP SW 2 9 HEAT EXCHANG...

Страница 14: ...6 5 TO OUTSIDE T TERMINAL 1 2 N 3 UNIT BLOCK L HEAT EXCHANGER BOARD CIRCUIT PRINTED FLAP LOUVER RIGHT MOTOR LEFT CNX2 CNX1 M M M 5 5 5 LOUVER MOTOR MOTOR RED WHITE RED WHITE BLACK BLUE YELLOW BLACK C...

Страница 15: ...R MOTOR DIODE STACK FAN MOTOR CFO Th3 D S CC EEV Th2 Th1 FMo CM TERMINAL BLOCK T1 T2 MEANING OF SYMBOLS PARTS NAME SYMBOL Y GN Y GN WH 2 Outdoor units Model SRC21CNS S6 Model SRC26CNS S6 BL RD OR SYMB...

Страница 16: ...r Heat exchanger sensor Compressor Capillary tube Strainer Accumulator Service valve Gas Electronic expansion valve Outdoor unit Indoor unit Room temp sensor Humidity sensor Heat exchanger Flare conne...

Страница 17: ...y length Max 25m Max 15m Outdoor unit is higher Max 15m Outdoor unit is lower Min 3 minutes Max 10 times h Min 85 of rating Vertical height difference between outdoor unit and indoor unit Power source...

Страница 18: ...2 Correction of cooling capacity in relation to one way length of refrigerant piping How to obtain the cooling capacity Piping length m Cooling 7 1 0 10 0 99 15 0 975 20 0 965 25 0 95 SRK21CNS S6 SRK2...

Страница 19: ...o refrigerant circuit which can cause burst or personal injury due to anomalously high pressure in the refrigerant The electrical installation must be carried out by the qualified v electrician in acc...

Страница 20: ...can occur in case of multiple units installation Locations where strong air blows against the air outlet of outdoor unit Locations where something located above the unit could fall It can cause remark...

Страница 21: ...to the direct rays of the sun or the strong rays of the street lighting A place where it can be easily drained A place separated at least 1m away from the television or the radio To prevent interfenc...

Страница 22: ...e way piping length Max 25 m Vertical height difference h Max 15 m h 21 Series 21 Series 26 Series 26 Series Look for the inside wall structures Intersediats support or pillar and finally install the...

Страница 23: ...d loosening of the wires CENELEC code for cables Required field cables H05RNR4G1 5 Example or 245IEC57 H Harmonized cable type 05 300 500 volts R Natural and or synth rubber wire insulation N Polychlo...

Страница 24: ...h the pipe Cautions when piping from the left and the rear center of the unit Top View Right rear piping Left rear piping Left side piping Right side piping Left downward Right Rear Downward Left rear...

Страница 25: ...drain pan before drainage Do not make traps in the drain hose line Wall Gutter Pipes storage area Declining slope Inverted slipe Trap Installing steps 1 Hook the upper part of the indoor unit to the...

Страница 26: ...er section Tighten the 5 set screws Install the air filter Install the air inlet panel To open pull the panel at both ends of lower part and release latches then pull up the panel until you feel resis...

Страница 27: ...m Liquid side F 6 35 14 0 18 0 1 4 1 8 Gas side F 9 52 34 0 42 0 3 4 4 2 F 12 7 49 0 61 0 4 9 6 1 F 15 88 68 0 82 0 6 8 8 2 Flaring work v CAUTION Do not apply excess torque to the v flared nuts Othe...

Страница 28: ...Unit ON OFF button Unit ON OFF button Securely tighten the operation valve cap and the check joint blind nut after adjustment Operation valve size mm Operation valve cap tightening torque N m Check j...

Страница 29: ...t drain flows properly Battery Cover Fixing to pillar or wall Conventionally operate the wireless remote control by holding in your hand Avoid installing it on a clay wall etc Screws CAUTION Do not us...

Страница 30: ...green Illuminates during 3D AUTO operation HI POWER light green Illuminates during HIGH POWER operation TIMER light yellow Illuminates during TIMER operation In emergencies this button can be used fo...

Страница 31: ...emote control is not available RUN light green Illuminates during operation Blinks at the CLEAN operation 3 sec OFF ON CLEAN operation 26 Series Illuminates during 3D AUTO operation HI POWER light gre...

Страница 32: ...T 164 Auto restart function a b i ii J170 4 Custom cord switching procedure a Modifying the indoor printed circuit board b Modifying the wireless remote control i ii J171 Jumper wire J170 Jumper wire...

Страница 33: ...zontal Center installation Remote control display Right end installation Left end installation Angle of Louver Left Note 1 Values in are for the 26 Series Approx 45 Left Approx 45 Left Approx 20 Left...

Страница 34: ...g Left right Swing Horizontal blowing Fixed Flap Louver Cooling Up down Swing Center Fixed Wide Fixed Flap Louver Cooling Horizontal blowing Fixed Operation mode Indoor temp Setting temp 2 C Cooling A...

Страница 35: ...is running press the ON OFF button to stop ii Press the AIR FLOW UP DOWN button and the AIR FLOW LEFT RIGHT button together for 5 seconds or more iii Setting the air conditioning installation location...

Страница 36: ...tting Cooling 18 19 20 21 22 23 24 25 26 27 28 29 30 temperature Dehumidifying 18 19 20 21 22 23 24 25 26 27 28 29 30 9 Outline of cooling operation a Operation of major functional components in Cooli...

Страница 37: ...tion When the airconditioner is operating and the indoor fan motor is turned ON if the indoor fan motor has operated at 300 min 1 rpm or under for more than 30 seconds the unit enters first in the sto...

Страница 38: ...ion is displayed RUN light 1 time flash TIMER light ON iii Outdoor heat exchanger temperature sensor 55 C or lower is detected for 5 seconds continuously 3 time within 40 minutes after initial detecti...

Страница 39: ...valve open 3 Troubleshooting procedure If the air conditioner does not run at all If the air conditioner does not run at all diagnose the trouble using the following troubleshooting procedure If the...

Страница 40: ...38 14 SRK T 164 4 Troubleshooting procedure If the air conditioner runs NO YES 39...

Страница 41: ...or within 20 seconds after power ON The compressor is stopped Broken heat exchanger sensor wire poor connector connection Outdoor main PCB is faulty Outdoor heat exchanger sensor error 25 C or lower i...

Страница 42: ...ter making sure the DC fan motor and indoor PCB are normal connect the connectors and confirm that the fan motor is turning If power is turned on while one or the other is broken down it could cause t...

Страница 43: ...64 09 SRK DB 087D Over heat of compressor Gas shortage defective discharge pipe sensor Error of signal transmission Wiring error including power cable defective indoor outdoor PCB 40 main indoor indoo...

Страница 44: ...164 Trouble of outdoor unit Insufficient refrigerant amount Faulty power transistor Broken compressor wire Service valve close Defective EEV Defective outdoor PCB 1 1 main AC AC AC Does 52X1 relay ope...

Страница 45: ...ween terminal blocks and AC 220V Indoor electrical components are normal Is the voltage between terminal blocks and oscillating between DC 0 and 20V Inspect If the package components are not damaged r...

Страница 46: ...rform an operation check again Compressor stop power source for outdoor unit Replace indoor PCB Is the fuse burnt out 3 15 A NO YES YES NO YES NO b Indoor unit fan motor check procedure i Indoor PCB o...

Страница 47: ...14 SRK T 164 9 How to make sure of wireless remote control Measure in this section Operation SW ON The figare below shows the SRK series of indoor unit Replace the display of indoor unit reset ACL but...

Страница 48: ...46 14 SRK T 164...

Страница 49: ...47 14 SRK T 164 TECHNICAL MANUAL PARTS LIST INDOOR UNIT SRK21CNS S6 SRK26CNS S6 OUTDOOR UNIT SRC21CNS S6 SRC26CNS S6...

Страница 50: ...48 14 SRK T 164 CRAE0288 44 5 5 44 42 6 32 36 33 43 31 7 34 2 2 39 39 40 41 37 38 40 30 35 8 29 28 20 19 22 9 15 15 10 27 18 24 26 25 23 14 12 17 16 22 21 11 13 13 11 15 15 4 3 1 PANEL FAN ASSY...

Страница 51: ...RKW 935C 200 COLLAR 4 16 22 RKY 144A 010 LINK ASSY R 1 1 1 1 2 16 RKY 129A 009 JOINT R 1 1 1 1 2 17 RKY 129A 005 BRACKET MOTOR R 1 1 1 1 2 18 RKY 144A 001 LINK 1 1 1 1 2 19 RKY 144A 002 CRANK A 1 1 1...

Страница 52: ...ed Q ty Note 38 40 RKY 129A 023B FILTER UNIT ASSY 1 1 1 1 2 38 RKY 129A 036 HOLDER ASSY B 1 1 1 1 2 39 RKY 129A 025 HOLDER FILTER R 2 1 1 1 2 40 RKY 129A 028 HOLDER FILTER 2 1 1 1 2 41 RKY 129A 034A C...

Страница 53: ...51 14 SRK T 164 MEMO...

Страница 54: ...52 14 SRK T 164 CRAE0289 3 1 2 7 5 4 6 8 9 10 12 13 11 25 17 23 16 28 31 22 21 30 20 18 15 14 19 24 32 34 33 26 27 29 36 35 HEAT EXCH CONTROL...

Страница 55: ...L 1 21 SSA 551A 223A SENSOR ASSY 1 1 1 2 4 INCL SENSOR ROOM TEMP HEAT EXCH 22 SSA 551B 017A SENSOR HUMIDITY 1 1 1 2 4 23 RMA 504A 012 HARNESS ASSY 1 24 SSA 561B 702B BLOCK TERMINAL 1 1 1 2 2 T1 25 27...

Страница 56: ...54 14 SRK T 164 CRAE0240 1 35 41 34 14 14 14 13 18 16 19 14 5 21 20 45 45 46 42 43 32 38 10 11 23 25 12 17 15 27 22 24 26 12 10 33 36 44 39 40 37 7 31 30 28 29 6 4 46 46 4 4 3 9 8 3 2 PANEL FAN ASSY...

Страница 57: ...15 RKW 129A 208A JOINT L 1 1 1 1 2 16 RKW 129A 210 BRACKET MOTOR A 1 1 1 1 2 17 RKW 144A 201 LINK 1 1 1 1 2 18 RKW 144A 202 CRANK A 1 1 1 1 2 19 RKW 144A 203 CRANK B 1 1 1 1 2 20 RKW 144A 204 CRANK C...

Страница 58: ...032A 200A PLATE INSTALLATION 1 1 1 1 2 39 PHA 129A 302A COVER ASSY PIPE 1 1 1 1 2 40 RKW 132A 400 LID R 1 1 1 1 2 41 RKW 132A 401 LID L 1 1 1 1 2 42 43 RKW 132A 403 LID ASSY TERMINAL 1 1 1 1 2 43 RSA...

Страница 59: ...57 14 SRK T 164 MEMO...

Страница 60: ...58 14 SRK T 164 CRAE0290 28 25 30 29 33 26 32 31 14 27 15 2 5 6 7 9 8 10 4 17 21 20 19 18 22 24 23 1 3 13 12 11 16 HEAT EXCH CONTROL...

Страница 61: ...2A 402 BOX CONTROL R 1 16 RKW 132A 404 COVER CONTROL R 1 17 RKW 142A 401 BOX ASSY CONTROL L 1 18 RKW 129A 407 HOLDER SENSOR 1 19 SSA 551A 223H SENSOR ASSY 1 1 1 2 4 INCL SENSOR ROOM TEMP HEAT EXCH 20...

Страница 62: ...60 14 SRK T 164 CRBE0393 14 2 5 3 6 7 8 9 11 13 4 17 12 15 15 16 15 15 10 1 18 PANEL FAN ASSY...

Страница 63: ...GRILLE AIR OUTLET 1 1 1 2 3 7 SSA 944B 036B HANDLE 1 8 RWC 131A 004 GUARD FIN 1 9 RWC 116A 04103 BRACKET MOTOR 1 10 SSA 511B 818A MOTOR AC 1 1 1 1 2 11 SSA 431B 233 PROPELLER 1 1 1 2 4 12 SSA 913A 03...

Страница 64: ...62 14 SRK T 164 CRBE0394 1 2 20 22 14 13 12 10 11 9 5 6 8 23 18 19 7 3 4 GAS LIQ CONTROL ASSY 15 16 17 21 25 21 24 21 TH3 TH2 TH1 HEAT EXCH CONTROL...

Страница 65: ...A 914C 013A NUT FLANGE 3 12 RMC 932C 004 GASKET COVER 1 13 RMC 947K 004 COVER TERMINAL 1 1 1 2 4 14 RMC 914C 002 NUT FLANGE 1 15 17 RCR 505A 040F PWB ASSY 1 2 2 4 8 16 SSA 555B 058AD VARISTOR 1 Z 17 S...

Страница 66: ...64 14 SRK T 164 CRBE0395 11 7 1 2 8 12 20 4 20 13 10 6 5 3 13 9 13 15 14 16 17 21 18 19 20 PANEL FAN ASSY...

Страница 67: ...NER 1 8 RCR 435A 001 GRILLE AIR OUTLET 1 1 1 2 3 9 RCR 132A 004B COVER ASSY SERVICE 1 10 RCR 131A 002 GUARD FIN B 1 11 RCR 132A 002 COVER TERMINAL 1 12 SSA 913A 034F SCREW TAP 20 4 8 13 SSA 913A 034G...

Страница 68: ...66 14 SRK T 164 CRBE0396 1 2 8 9 21 23 24 16 15 14 13 12 10 6 6 5 7 11 20 4 GAS 3 LIQ CONTROL ASSY 17 18 19 22 26 TH3 22 TH2 22 25 TH1 HEAT EXCH CONTROL...

Страница 69: ...SSY 1 1 2 3 8 12 RMC 941C 051 CUSHION RUBBER 3 13 SSA 914C 013A NUT FLANGE 3 14 RMC 932C 004 GASKET COVER 1 15 RMC 947K 004 COVER TERMINAL 1 1 1 2 4 16 RMC 914C 002 NUT FLANGE 1 17 19 RCR 505A 040G PW...

Страница 70: ...AIR CONDITIONING TECHNICAL MANUAL PARTS LIST Copyright MITSUBISHI HEAVY INDUSTRIES LTD Because of our policy of continuous improvement we reserve the right to make changes in all specifications witho...

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