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TABLE OF CONTENS

1. SPECIFICATIONS ……………………………………………… 4~5

2. PARTS …………………………………………………………… 6~33

3. WIRING DIAGRAM

…………………………………………… 34~35

4. MAIN COMPONENTS ………………………………………….

36~49

5. ELECTRONIC CONTROL INSTRUCTIONS ……………… 50~73

6. PART LIST ……………………………………………………… 74~77

Содержание LFT-1471E

Страница 1: ...Commercial Upright Refrigerator Freezer Service Manual...

Страница 2: ...TABLE OF CONTENS 1 SPECIFICATIONS 4 5 2 PARTS 6 33 3 WIRING DIAGRAM 34 35 4 MAIN COMPONENTS 36 49 5 ELECTRONIC CONTROL INSTRUCTIONS 50 73 6 PART LIST 74 77...

Страница 3: ...s danger of fire such as TRACKING SHORT Check whether water has gone into the electric parts When there are traces of water exchange the parts or enact the TRACKING prevention device After repairing c...

Страница 4: ...1 Specifications A Dimensions 1 LRT 771E LFT 771E mm in MODEL A B C D LRT 771E LFT 771E 1403 55 2in 163 6 4in 617 24 7in 105...

Страница 5: ...2 LRT 1471E LFT 1471E mm in MODEL A B C D LRT 1471E LFT 1471E 1403 55 2in 163 6 4in 617 24 7in 105...

Страница 6: ...20 Compressor Bolt 4 10 M6x36 ZPW B2 R300A 020 Grommet Comp 4 EPDM BLACK 34 3 AC COMP B3 R3243 040 Reinf Comp 1 GI T1 6 135 236 C R811A 410 Assy Cabi BOX 1 LRT 771E 220V D R818B 060 ASSY GRILL TOP_TM2...

Страница 7: ...A 330 Screw Machin Comp 4 M6 8 L 30 SWCH ZN B2 R300A 020 Grommet Comp 4 EPDM BLACK 34 3 AC COMP C R811A 420 Assy Cabi BOX 1 LFT 771E 220V D R818B 060 ASSY GRILL TOP_TM23 1 STS430 4 TM 23 220V 50 60Hz...

Страница 8: ...R300A 020 Grommet Comp 4 EPDM HS BLACK 34 3 AC COMP B3 R3243 040 Reinf Comp 1 GI T1 6 135 236 C R811A 430 Assy Cabi BOX 1 LRT 1471E 220V D R818B 070 Assy Grill Top_TM49 1 STS430 4 TM 49 220V 50 60Hz...

Страница 9: ...lt 4 10 M6x36 ZPW B2 R300A 020 Grommet Comp 4 EPDM HS BLACK 34 3 AC COMP C R811A 440 Ass y Cabi BOX 1 LFT 1471E D R818B 070 Assy Grill Top_TM49 1 STS430 4 TM 49 220V 50 60Hz E R829A 410 Ass y Control...

Страница 10: ...8603 833 Ass y Suction Pipe 1 Cu 3 0 ID1 4 3100 6 R2104 610 Tube Vaccum 1 Cu 6 35 T0 6 120 7 R8633 010 Condenrser AS 1 LRT 49D 8 R3723 070 Condenser Fan Blade 1 AL 220V FAN MOTOR AL 9 CCW 9 R7423 063...

Страница 11: ...ION T23F 1 Cu CAPI OD3 0XID1 4X4800 6 R2104 610 Tube Vaccum 1 Cu 6 35 T0 6 120 7 R8633 010 Condenrser AS 1 9 R3723 070 Condenser Fan Blade 1 AL 220V FAN MOTOR AL 9 CCW 10 R7423 063 Condenser Fan Motor...

Страница 12: ...ONDENSER DRYER 1 Cu 4 76 T0 7 412 5 R845A 050 Ass y Suction Pipe T49F 1 Cu OD 3 0XID1 4XL4800 LFT 1471E 6 R2104 610 Tube Vaccum 1 Cu 6 35 T0 6 120 7 R2183 032 Condenrser COIL 1 SWST MSWR10 SWST 4 76 1...

Страница 13: ...R404A 25 7 169 5 R2104 982 Pipe Dryer 1 Cu 4 76 T0 7 506 5 6 R2114 321 Comp Charging Pipe 1 Cu 6 35 T0 7 7 R876A 010 Ass y Relay Box 1 Code No 117 7045 R7549 300 Running CAPACITOR 220V 125 220V 50HZ...

Страница 14: ...C Body Assembly a LRT 771E LFT 771E...

Страница 15: ...T MAIN 1 STS443CT 2B T0 5 471 7 1145 7 R3314 602 U COVER BRACKET A 2 GI 1 2T 81 61 20 8 R3323 200 CASTER 2 4 MOVING STOPING 9 R3323 190 CASTER 2 4 MOVING 10 R346A 040 SUPPOTER RAIL A RH 2 STS443CT 2B...

Страница 16: ...b LRT 1471E...

Страница 17: ...R332A 150 DUCT TOP B LF T49 1 STS443CT 2B T0 5 195 4 82 9 11 R332A 160 DUCT TOP B RH T49 1 STS443CT 2B T0 5 93 9 74 4 12 R376A 060 SUPPOTER RAIL B RH 6 STS443CT 2B T1 0 118 1 1041 13 R376A 080 SUPPOTE...

Страница 18: ...c LFT 1471E...

Страница 19: ...3 10 R332A 150 DUCT TOP B LF T49 1 STS443CT 2B T0 5 195 4 82 9 11 R332A 160 DUCT TOP B RH T49 1 STS443CT 2B T0 5 93 9 74 4 12 R376A 060 SUPPOTER RAIL B RH 6 STS443CT 2B T1 0 118 1 1041 13 R376A 080 S...

Страница 20: ...tch Puch 1 SP201 7D 125VAC1 5A 4 R3734 030 Door Locking Ass y 1 ZDC ZCR 5 R511A 540 Inlay Control 1 2 BUTTON 141 8 43 5 6 R321A 920 Case Control Panel 1 ABS ABS GRAY 380G 166 5 60 5 7 R725C 220 PCB Pa...

Страница 21: ...7D 125VAC 1 5A 4 R3734 030 Door Locking Ass y 2 ZDC ZCR 5 R511A 540 Inlay Control 1 2 BUTTON 141 8 43 5 6 R321A 920 Case Control Panel 1 ABS ABS GRAY 380G 166 5 60 5 7 R725C 220 PCB Panel 1 FR1 144 3...

Страница 22: ...357 07 218 97 3 R725A 413 Main PCB 1 FR1 TM 220V REF TMR220C 05 4 R7503 070 POWER TRANS 220V 1 220V 50 60HZ DT 1213K 5 R719A 550 HARNESS MAIN AC A T23R 1 115V NEW LED LAMP R719A 800 HARNESS MAIN AC B...

Страница 23: ...119 882 COVER MAIN PCB BOX 1 GI T0 5 357 07 218 97 3 R725B 050 Main PCB 1 FR1 FR1 165 115 220V 7338 4 R7504 060 Power Trans 1 120V60Hz DT 1213 5 R719A 560 Harness Main AC A 23F 1 115V NEW LED LAMP R71...

Страница 24: ...07 218 97 3 R725A 413 Main PCB 1 FR1 FR1 TM 220V REF TMR220C 05 4 R7504 060 Power Trans 1 120V 60Hz DT 1213 5 R719A 570 Harness Main AC A 49R 1 Ass y UL LED LAMP R719A 820 Harness Main AC B 49R 1 Ass...

Страница 25: ...331 1 2 R7119 882 M PCB Box Cover 1 GI T0 5 357 07 218 97 3 R725B 423 Main PCB 1 FR1 FR1 TM 220V TMF220C 05 4 R7504 060 Power Trans 1 120V 60Hz DT 1213 5 R748A 020 Power Relay 1 PANASONIC HE1AN Q DC12...

Страница 26: ...3 HANDLE BODY HANDLE GUARD 1 UL94 HB F2 R338A 010 GASKET DOOR TM 1 RD PVC 1512 610 F3 R1254 052 DOOR RUBBER LEG 2 SILICON 16 12 F4 R858A 410 SHAFT TOP HINGE AS 1 SUM24L F5 R374A 022 SPRING DOOR RH 1 S...

Страница 27: ...EG 2 SILICON 16 12 F4 R828A 065 HINGE TOP RH AS 1 STS304 T4 0 F5 R858A 410 SHAFT TOP HINGE AS 2 F6 R374A 022 SPRING DOOR RH 1 SW C F7 R412A 021 PIN TENSION 2 SUM24L 8 25 F8 R828A 0555 ASSY HINGE TOP L...

Страница 28: ...34 8 8 R325A 200 Eva Cover T23 1 STS443CT T 0 5 654 2 573 9 R3744 091 Evap Drain Elbow Upp 1 PP White 10 R3744 101 Evap Drain Elbow Low 1 PP White 11 R2124 021 Evaporator Drain Hose A 1 Silicon 16 12...

Страница 29: ...White 11 R3744 101 Evap Drain Elbow Low 1 PP White 12 R2124 021 Evaporator Drain Hose A 1 Silicon 16x12 L 213 13 R7313 690 HEATER CORD DRAIN HOSE LS 610FN 1 220V 10W 14 R313A 050 BODY LAMP 1 HIPS 60H...

Страница 30: ...A 210 Eva Cover T49 1 STS443CT T 0 5 272 653 5 9 R3744 091 Evap Drain Elbow Upp 1 PP White 10 R3744 101 Evap Drain Elbow Low 1 PP White 11 R2124 021 Evaporator Drain Hose A 1 Silicon 16x12 L 213 12 R3...

Страница 31: ...White 11 R3744 101 Evap Drain Elbow Low 1 PP White 12 R2124 021 Evaporator Drain Hose A 1 Silicon 16 12 L 213 13 R7313 700 HEATER CORD DRAIN HOSE LS 1300FN 1 220V 10W 14 R313A 050 BODY LAMP 1 HIPS 60H...

Страница 32: ...se Vapori 1 ABS 602 5 275 106 5 2 R3422 050 Cover DC Motor T49 1 ABS 280 5 131 11 5 3 R3422 030 Case DC Motor T49 1 ABS 283 143 5 69 5 4 R831A 030 Ass y DC Motor Vapori 1 DC12V DA08025B12MF 5 R1154 09...

Страница 33: ...106 5 2 R3422 050 Cover DC Motor T49 1 ABS 280 5 131 11 5 3 R3422 030 Case DC Motor T49 1 ABS 283 143 5 69 5 4 R831A 030 Ass y DC Motor Vapori 1 DC12V DA08025B12MF 5 R3743 400 Holder Vapori Heater 5...

Страница 34: ...3 WIRING DIAGRAM T23R T23F...

Страница 35: ...T49R T49F...

Страница 36: ...del SK1A1Q L2U SC12CLX2 SC18CLX2 Part code DY R7439 170 R714A 030 R7439 530 Image 4 2 POWER RELAY COMP RELAY MODEL LFT 1471E Voltage 220V 50Hz Relay Model OMRON G7L 2A TUB 220 240VAC Part code DY R748...

Страница 37: ...Image 4 5 CONDENSER DRYER MODEL LRT 771E LRT 1471E LFT 771E LFT 1471E Refrigerant R 134a R 404A Spec 36G 24G Part code DY R2183 032 R2183 200 Image 4 6 CONDENSER COIL MODEL LRT 771E LFT 771E LFT 1471...

Страница 38: ...FAN MOTOR AL 9 CCW Part code DY R3723 070 Image 4 8 CONDENSER FAN MOTOR MODEL ALL Voltage 220V 50 60Hz 9W CCW Motor Model DAI 8204DYCA Part code DY R7423 070 Image 4 9 BRACKET C FAN MOTOR MODEL ALL Mo...

Страница 39: ...t code DY R7423 053 Image 4 11 EVAPORATOR COIL MODEL LRT 771E LRT 1471E LFT 771E LFT 1471E Spec AL AL CU AL CU AL Part code DY R2263 074 R2263 084 R2263 051 R2263 062 Image 4 12 EVAPORATOR DEFROST HEA...

Страница 40: ...S VH 1800EX WHITE Part code DY R3812 141 Image 4 15 MOTOR FIX BRACKET MODEL ALL Spec STS430 2B T1 90 146 Part code DY R3203 482 Image 4 16 MAIN PCB MODEL LRT 771E LRT 1471E LFT 771E LFT 1471E Spec FR1...

Страница 41: ...CONTROL MODEL TM BM NEW DP R F SIDE MOUNT TABLE Spec 2 BUTTON 141 8 43 5 Part code R511A 540 R511A 020 Image 4 19 POWER CORD MODEL LRT 771E LFT 771E LRT 1471E LFT 1471E Spec 250V 10A Part code DY R73...

Страница 42: ...R D SENSOR Evap SENSOR MODEL ALL Spec AT25 10 75K 1 25 25 Part code DY R7213 422 Image 4 23 HARNESS SWITCH MODEL LRT 771E LFT 771E LRT 1471E LFT 1471E Spec UL AWG 18 Part code DY R7523 261 R7523 270 I...

Страница 43: ...OTOR DC VAPORI MODEL ALL Spec DC 12V 3000RPM DA08025B12MF Part code DY R831A 030 Image 4 27 HEATER VAPORI MODEL LRT 1471E Spec 220V 50W 968 SHEATH HEATER Part code DY R720A 080 Image 4 28 WICKING DRAI...

Страница 44: ...c 220V 90W 220V 140W Part code DY R720A 100 R720A 120 Image 4 30 SENSOR BRACKET MODEL ALL Spec PP WHT Part code DY R3314 192 Image 4 31 CASTER MODEL LRT 771E LFT 771E LRT 1471E LFT 1471E Spec SPCC 4 P...

Страница 45: ...471E Spec SP201 7D 125VAC1 5A Part code DY R7203 010 Q ty 1 2 Image 4 33 DOOR LOCK MODEL LRT 771E LFT 771E LRT 1471E LFT 1471E Spec ZDC ZCR Part code DY R3734 030 Q ty 1 2 Image 4 34 POWER SWITCH MODE...

Страница 46: ...4 SET 26 SET Part code DY R8429 022 R8429 012 Image 4 36 DOOR GASKET MODEL ALL Spec RD PVC BLK 1517 615 Part code DY R338A 010 Image 4 37 STOPPER HINGE STOPPER DOOR MODEL ALL Spec POM FW700S POM FW700...

Страница 47: ...T 4 0 Part code DY R828A 065 RH R828A 055 LF Image 4 39 ASSY HINGE BOTTOM MODEL ALL LRT 1471E LFT 1471E Spec STS304 T 4 0 Part code DY R828A 022 RH R828A 032 LF Image 4 40 PIN TENSION MODEL ALL Spec...

Страница 48: ...114 PW C 2 3 PW C 2 3 PINK Part code DY R858A 410 R374A 022 RH R374A 012 LF Image 4 42 ASSY CROSS BAR MODEL LRT 1471E LFT 1471E Spec 220V Part code DY R816A 300 Image 4 43 DOOR ASSY MODEL LRT 1471E LF...

Страница 49: ...4 44 BODY DOOR SPRING MODEL ALL Spec ZNDC2 97 70 26 Part code DY R313A 011 Image 4 45 CHECK VALVE AS MODEL LRT 771E LFT 771E LRT 1471E LFT 1471E Spec ABS FILTER Part code DY R8173 130 Q ty 1 2 Image...

Страница 50: ...5 ELECTRONIC CONTROL INSTRUCTIONS 5 1 FREEZER CONTROL 5 1 1 HOW TO USE THE DISPLAY PCB PANEL...

Страница 51: ...mes Change set up value 3 COMP 1 Operate by Temperature Value 2 Operates on Comp ON OFF Set Value 3 If Temp Value hits the OFF Temp the Comp does not operate for 5 min 4 FAN 1 Operate with Comp 2 If t...

Страница 52: ...ximum 40 min 4 If fails defrost Error Code will be saved If Temp is over 23 5 after precool or the sensor malfunctioned heater will go atleast 20 min and at 28 2 it will go Off dF 10 Resting Period 1...

Страница 53: ...rost After access return after the last procedure Return after 20 min auto D Sensor display dS 888 D Sensor rS 888 R Sensor 15 Condenser Alarm 1 Alarms for an hour if set up period is passed 2 1 Push...

Страница 54: ...nate the Defrost F3 Poor Defrost If D Sensor lower than 53 6 in 40 min later Terminate the Defrost 40 min after its start C1 Poor Cycle If D Sensor is above 32 in 30 min later Normal Operation RT Sens...

Страница 55: ...5 ELECTRONIC CONTROL INSTRUCTIONS 5 2 REFRIGERATOR CONTROL 5 2 1 HOW TO USE THE DISPLAY PCB PANEL Default Temp Range Level REF 2 2 4 6 FEZ 18 23 15 9 REF 35 28 39 12 FEZ 0 9 5 15...

Страница 56: ...e cabinet temperature after 5 seconds Display information Normal operation Cabinet temperature displayed Pre cooling Cycle the OFF temperature for Pre cooling cycle displayed Ex If the temperature is...

Страница 57: ...SOR DC CON9 Room Sensor DC CON10 Display cable 10P DC CON3 15 LED DC CON11 Display cable 8P DC Test Switch DC CON7 Cabinet Heater CON4 Evaporator Fan CON1 Transformer AC CON1 Transformer AC CON2 Power...

Страница 58: ...play will show the cabinet temperature after 5 seconds Display information Normal operation Cabinet temperature displayed Pre cooling Cycle the OFF temperature for Pre cooling cycle displayed Ex If th...

Страница 59: ...SOR DC CON9 Room Sensor DC CON10 Display cable 10P DC CON3 15 LED DC CON11 Display cable 8P DC Test Switch DC CON7 Cabinet Heater CON4 Evaporator Fan CON1 Transformer AC CON1 Transformer AC CON2 Power...

Страница 60: ...Room Sensor Temp 3 FRE Defrost Period Defrost Period can be set to 5 6 7 8 9 10Hr Default 8hr 4 REF Defrost Period Defrost every 5 Hr 5 Defrost System FRE Defrost System 1 PRE COOL To Lower Room Temp...

Страница 61: ...T Temp is between 78 26 Comp On Tem p HTR is 10min ON 10min OFF When RT Temp is below Comp On Temp HTR goes OFF 8 REF Frost Prevent System COMP OFF EVA FAN OFF To prevent REF EVA Frost If Room Temp is...

Страница 62: ...1 5 sec term Push KEY for 3 sec to enter control mode 888 SEGMENT NO MODE SW 4 Display Content 1 Forced Defrost 1 times ds Display after 2 sec 888 SEGMENT LED OFF 2 Mode Control 2 times OF 3 Each part...

Страница 63: ...rost Time Change 0F 1 sec 00 23 5 0 41 5 0 32 0 5 change 32 0 5 32 5 Display 0d 1 sec 20 32 0 25 32 0 5 33 0 75 33 1 0 34 1 5 35 2 0 37 3 0 39 4 0 41 5 0 CA 1 sec 00 23 5 0 41 5 0 33 1 change Room Tem...

Страница 64: ...COMP ON C P FAN ON 2 COMP OFF FAN OFF Defrost HTR ON R Model does not have function d H t 3 COMP OFF FAN OFF Defrost HTR OFF Cord HTR ON C H t d Error Check 1 Display No Error n O Error S1 SENSOR SHO...

Страница 65: ...15sec auto save j Temp Check Mode 1 Content Hold hit 3 times to enter Mode SEGMENT display value Operation Normal Operation 2 Adjustment Press Display DS D SENSOR Temp RS R SENSOR Temp Return REF D Se...

Страница 66: ...r Error 1 S1 Sensor SHORTAGE or Temp is over 143 62 SEGMENT ESH Blinks 2 S1 Sensor OPEN or Temp is under 58 50 SEGMENT ESL Blinks 3 ERROR Mode Operation REF S1 Sensor ERROR 10min On 20min Off FRE S1 S...

Страница 67: ...Ambient sensor Disconnected Sensor Normal Operation r t Shortage of Sensor r t _ 3 D1 SENSOR Defrost Sensor Disconnected Sensor or Room temp is under 58 Normal Operation D 1 Shortage of Sensor or Room...

Страница 68: ...is not connected of error Normal Operation u F n When a combined temperature amperage value is above the limit specified by the compressor manufacturer a protector will operate independently turning...

Страница 69: ...1 Replace 9 Compressor 1 Open windings 1 Check continuity and replace 10 Relay Compressor 1 Bad contacts 1 Replace 2 Open coil winding 2 Check and replace 2 Compressor will not run draws current and...

Страница 70: ...Freezer See C 1 5 Defrost System 2 Refrigerator C 1 6 Defrost System 3 Check D Sensor position 4 Refrigerant 1 Leak 1 Repair leak and recharge 5 Fan Motor 1 Defective 1 Check and replace 6 Condenser...

Страница 71: ...ective 1 Replace 2 Control Board 1 Defective 1 Replace 3 Defrost 1 Not enough defrosts occurring per day Operation in humid conditions 1 Freezer See C 1 5 Defrost System 2 Refrigerator C 1 6 Defrost S...

Страница 72: ...motor 2 Replace 4 Relay 1 Chattering 1 Replace Thermistors semiconductors are used for the cabinet control sensor and defrost termination sensor The resistance varies depending on temperature No adjus...

Страница 73: ...an OFF ON Compressor OFF Pre set value Room Sensor Pre set value ON Vaporazer Fan OFF Set value 1 Return Temp 3 Set value 0 Return Temp 5 AT Comp ON Temp Heater OFF Comp ON Temp AT 26 10 min ON OFF 26...

Страница 74: ...Cabinet Heater OFF ON Evaporator Fan OFF ON Condenser Fan OFF ON Compressor OFF Pre set value Room Sensor Pre set value ON Defrost indicator OFF ON Defrost Heater OFF Pre set value Defrost Sensor No...

Страница 75: ...5 ELECTRONIC CONTROL INSTRUCTIONS 5 2 3 ERROR CODE tO R Sensor OPEN tO Comp ON 6 MINUTES Comp OFF 11 MINUTES ts R Sensor SHORT ts RT Sensor OPEN SHORT BOX HEATER 100...

Страница 76: ...ENSER R2183 032 CONDENSER COIL SWST 4 76 13190 1 1 1 R2272 013 CONDENSER COIL 370 184 MSF 49NM 1 DRYER ASSY R2183 032 DRYER ASSY R 134a 36G 1 1 1 R2183 200 DRYER ASSY R 404A 24G 1 CONDENSER FAN MOTOR...

Страница 77: ...141 EVAPORATOR FAN MOTOR GUARD HIPS VH 1800EX WHITE 1 1 1 2 R7213 412 SENSOR ROOM AT25 10 75K 1 25 25 1 1 1 1 R7213 422 D SENSOR EVAP SENSOR AT25 10 75K 1 25 25 1 1 1 1 R325A 141 COVER LAMP PC MILKI...

Страница 78: ...A 170 DUCT TOP A T23 STS443CT 1 1 R332A 110 DUCT A LF T23 STS443CT 1 1 R332A 120 DUCT A RH T23 STS443CT 1 1 R332A 200 DUCT MAIN STS443CT 1 1 R376A 030 SUPPOTER RAIL A LF STS443CT 2 2 R376A 040 SUPPOTE...

Страница 79: ...L 1 1 2 2 R412A 021 PIN TENSION SUM24L 5 22 1 1 2 2 R828A 022 ASSY HINGE BOTTOM RH STS304 T 4 0 1 1 1 1 R828A 032 ASSY HINGE BOTTOM LF STS304 T 4 0 1 1 R375A 021 STOPPER HINGE LF POM FW700S 45 5 31 8...

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