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LASSELLE LRT-23H Service Manual

Upright refrigerator & freezer
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Upright Refrigerator & Freezer
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Summary of Contents for LASSELLE LRT-23H

  • Page 1 Commercial Upright Refrigerator & Freezer Service Manual...

  • Page 2: Table Of Contents

    TABLE OF CONTENS 1. SPECIFICATIONS ……………………………………………… 4~6 2. PARTS …………………………………………………………… 7~44 3. WIRING DIAGRAM …………………………………………… 45~47 4. MAIN COMPONENTS …………………………………………. 48~62 5. ELECTRONIC CONTROL INSTRUCTIONS ……………… 63~85 6. PART LIST ……………………………………………………… 86~89...
  • Page 3 Safety cautions during service ㆍ When exchanging or repairing electric parts, pull the plug out before exchanging and repairing. ㆍ When exchanging electric parts, use a rating part. - Be sure to check marks such as MODEL name, rating voltage, rating currents, movement temperature etc.

  • Page 4: Specifications

    1. Specifications A. Dimensions 1. LRT-771H,LFT-771H...
  • Page 5 2. LRT-1471H,LFT-1471H...
  • Page 6 3. LRT-72H,LFT-72H...

  • Page 7: Parts

    2. PART A. MainAssembly a. LRT-771H Model Code Description Material Spec R7439-170 Compressor SK1A1Q-L2U, 220V 50HZ Screw Machine-Comp Z394A-810 MSWR ￠9 M6X43 ZPY (Samsung) R300A-030 Grommet Comp EPDM EPDM HS 48±2% BLDC COMP 용 R814B-520 Assy Cabi Pre LRT-771H R818A-840 Top Grill As T23H STS430 #4 LRT-771H...
  • Page 8 b. LFT-771H Model Code Description Material Spec R714A-030 Compressor SC12CLX2 220V/50/60HZ Screw Machine-Comp Z394A-820 MSWR ￠8 M6X31 ZPY (Danfos) R300A-050 Grommet Comp (Danfos) NBR HS 40-45 R814B-530 Assy Cabi Pre LFT-771H R818A-840 Top Grill As T23H STS430 #4 LRT-771H R829B-690 Ass’y Control Box LRT-771H, 220V/50,60Hz R817C-060...
  • Page 9 c. LRT-1471H Model Code Description Material Spec R7439-170 Compressor SK1A1Q-L2U, 220V 50Hz Screw Machine-Comp Z394A-810 MSWR ￠9 M6X43 ZPY (Samsung) R300A-030 Grommet Comp EPDM EPDM HS 48±2% BLDC COMP 용 R814B-540 Assy Cabi Pre LRT-1471H R818A-850 Top Grill As T49H STS430 #4 LRT/LFT-1471H R829B-750...
  • Page 10 d. LFT-1471H Model Code Description Material Spec R7439-530 Compressor SC18CLX.2 220~240V 50Hz Screw Machine-Comp Z394A-820 MSWR ￠8 M6X31 ZPY (Danfos) R300A-050 Grommet Comp NBR HS 40-45 R814B-550 Assy Cabi Pre LFT-1471H R818A-690 Top Grill As T49H STS430 #4 LRT/LFT-1471H R829B-760 Ass’y Control Box LFT-1471H 220V/50Hz R817C-090...
  • Page 11 e. LRT-72H Model Code Description Material Spec R714A-150 Compressor SC18G 220V 50/60Hz Screw Machine-Comp Z394A-820 MSWR ￠8 M6X31 ZPY (Danfos) R300A-050 Grommet Comp NBR HS 40-45 R814B-560 Assy Cabi Pre LRT-72H R818A-860 Top Grill As T72H STS430 #4 LRT/LFT-72H R829B-770 Ass’y Control Box TH HALF DOOR 72R R817C-090...
  • Page 12 f. LFT-72H Model Code Description Material Spec R714A-160 Compressor GS26CLX 208~230V/50Hz Screw Machine-Comp Z394A-810 MSWR ￠9 M6X43 ZPY (Samsung) EPDM HS 48±2% BLDC R300A-030 Grommet Comp EPDM COMP 용 R814B-570 Assy Cabi Pre LFT-72H R818A-860 Top Grill As T72H STS430 #4 LRT/LFT-72H R829B-780 Ass’y Control Box...
  • Page 13 B. Assembly Uint a. LRT-771H Model Code Description Material Spec R2113-981 Pipe Connect Dryer OD4.76*T0.7*L220 R2183-032 Dryer R-134a, 36G R8603-833 PIPE SUCTION T23R Φ3.0XΦ1.4X3100 R319A-460 Pipe Cond Outlet OD4.76*T0.7*340 R319A-470 Pipe Dryer Inlet OD4.76*T0.7*L506.5 R2104-610 Tube Vaccum T0.6*￠6.35*L=120 R858C-420 As Condenser SWST Φ4.76*13,190 R3723-070...
  • Page 14 b. LFT-771H Model Code Description Material Spec R2113-992 Pipe Discharge OD6.35*T0.7*L650 R2113-981 Pipe Connect Dryer Φ4.76*T0.7*L220 R2183-032 Dryer Ass’y R-134a, 36G R8603-824 Ass'y Suction Pipe TM23F CAPI OD3.0XID1.4X4800 R319A-460 Pipe Cond Outlet OD4.76*T0.7*340 R319A-470 Pipe Dryer Inlet OD4.76*T0.7*L506.5 R2104-610 Tube Vaccum T0.6*￠6.35*L=120 R858C-420 As Condenser...
  • Page 15 c. LRT-1471H Model Code Description Material Spec R319A-240 Pipe Discharge OD4.76*T0.7 R319A-580 Pipe Condenser Dryer OD4.76*T0.7*482.8 R2183-032 Dryer R-134a, 36G R8603-803 Pipe Suction Φ3.0XΦ1.3X3100 R2104-610 Tube Vaccum T0.6*￠6.35*L=120 R319A-460 Pipe Cond Outlet OD4.76*T0.7*L340 R319A-470 Pipe Dryer Inlet OD4.76*T0.7*L506.5 R319A-490 Pipe Cross Bar Outlet OD4.76*T0.7*L540 R858C-420 As Condenser...
  • Page 16 d. LFT-1471H Model Code Description Material Spec R2113-570 Discharge Connector Φ6.35*T0.7*1215 R8603-814 Pipe Suction T49F OD3.0XID1.6X5000 R319A-580 Pipe Condenser Dryer OD4.76*T0.7*482.8 R2183-200 Dryer Ø25.73*0.8T*169, CU-PIPE R2114-321 Comp Charging Pipe Φ6.35*T0.7 STARTING CAPACITOR- R7549-300 220V/125㎌ 220V/50HZ DANFOSS(117U5012) STARTING RELAY- R7549-310 220V/50HZ DANFOSS(117U6013) R319A-470 Pipe Dryer Inlet...
  • Page 17 e. LRT-72H Model Code Description Material Spec R845A-012 Assy Suction Pipe T72R OD￠3.0*ID1.6*4000 R2113-570 Discharge Connector ￠6.35*T0.7*1215 R867A-020 Assy Relay Box SC18G 115V60HZ 117-7053 72R Pipe Cross Bar Outlet R319A-530 OD4.76*T0.7*L150 TM72F Pipe Cross Bar Connect R319A-520 OD4.76*T0.7*L774.5 TM72F R319A-510 Pipe Cond Outlet TM72F OD6.35*T0.7*L363 R319A-540...
  • Page 18 f. LFT-72H Model Code Description Material Spec R2113-311 Discharge Connector Φ7.94*T0.7*355 R845A-021 Ass'y Suction Pipe T72F OD 3.0*ID1.6*5000 R319A-580 PIPE CONDENSER DRYER OD4.76*T0.7*482.8 R2183-200 Dryer Ø25.73*0.8T*169, CU-PIPE R2114-321 Compressor Charging Pipe OD6.35*T0.7 R876A-030 Ass’y Relay Box Code No : 117-7053 R319A-470 Pipe Dryer Inlet OD4.76*T0.7*L506.5...
  • Page 19 C. Body Assembly a. LRT-771H, LFT-771H Model Code Description Material Spec R3373-630 Shlef Standard L T=12, L930 R8429-022 Assy Shelf Clip 14 Set WHITE R3314-602 U-Cover Bracket A 1T*81.61*20 R371A-110 Shelf 23 MSWR10 W545*D580 R3323-230 Caster 4" MOVE R3323-240 Caster 4"...
  • Page 20 b. LRT-1471H Model Code Description Material Spec LRT/LFT-1471H HOT R816B-160 Assy Cross Bar_49H STS443CT PIPE R325A-030 Cover Corner 28.5*28.5*53 R3373-630 Shelf Standard L T1.2*930 R8429-012 Assy Shelf Clip 26 SET White R3314-602 U-Cover Bracket A 1T*81.61*20 R3323-230 Caster 4” 4" Move R3323-240 Caster 4”...
  • Page 21 c. LFT-1471H Model Code Description Material Spec LRT/LFT-1471H HOT R816B-160 Assy Cross Bar_49H STS443CT PIPE R325A-030 Cover Corner 28.5*28.5*53 R3373-630 Shelf Standard L T1.2*L930 R8429-012 Assy Shelf Clip 26SET White R3314-602 U-Cover Bracket A 1T*81.61*20 R3323-230 Caster 4” 4" Move R3323-240 Caster 4”...
  • Page 22 d. LFT/LRT-72H Model Code Description Material Spec R325A-030 Cover Corner 28.5*28.5*53 R3373-630 Shelf Standard L T1.2*L930 R835A-010 Assy Shelf Clip 36 SET White R3314-602 U-Cover Bracket A 1T*81.61*20 R3323-230 Caster 4” 4" Move R3323-240 Caster 4” 4" Stop R3233-210 Assy SHELF 49 MSWR10 NSF, W609*D580 R3233-210...
  • Page 23 D. Top Grill Assembly a. LRT-771H, LFT-771H Model Code Description Material Spec R818A-840 Top Grill As T23 STS430-#4 LRT/LFT-23H LIGHT COUNTRY(R19A) R7204-070 Power Switch 10A/115V R7203-010 Switch Push SP201-7D 125VAC1.5A R3734-030 Door Locking Ass’y ZDC. ZCR R511A-490 Inlay Control 88 Display-DP R4142-123 Control Board BLK.
  • Page 24 b. LRT-1471H, LFT-1471H Model Code Description Material Spec R818A-850 Top Grill As T49 STS443CT LRT/LFT-49H LIGHT COUNTRY(R19A) R7204-070 Power Switch 10A/115V R7203-010 Switch Puch SP201-7D 125VAC1.5A R3734-030 Door Locking Ass’y ZDC. ZCR R511A-490 Inlay Control 88 Display-DP R4142-123 Control Board BLK.
  • Page 25 c. LRT-72H, LFT-72H Model Code Description Material Spec R818A-860 Ass’y Grill Top T72 STS443CT LRT/LFT-72H LIGHT COUNTRY(R19A) R7204-070 Power Switch 10A/115V R7203-010 Switch Puch SP201-7D 125VAC1.5A R3734-030 Door Locking Ass’y ZDC. ZCR R511A-490 Inlay Control 88 Display-DP R4142-123 Control Board BLK.
  • Page 26 E. Main PCB Box a. LRT-771H Model Code Description Material Spec R7119-876 Box Main PCB T0.5*559*331.1 R7119-883 Cover Main PCB BOX T0.5*357.07*218.97 FR1 TM 220V ℃ 냉동 R725A-424 Main PCB TMF220C-06 220V 50/60HZ, DT- R7503-070 POWER TRANS (220v) 1213K R719B-880 Harness Main AC-A 23R Ass'y UL, LED LAMP R7613-780...
  • Page 27 b. LFT-771H Model Code Description Material Spec R7119-876 Box Main PCB T0.5*559*331.1 R7119-883 Cover Main PCB Box T0.5*357.07*218.97 R725A-414 Main PCB FR1 TM 220V ℃ 냉장 TMR220C-06 R7503-070 Power Trans 220V 50/60HZ, DT-1213K R719A-560 Harness Main AC-A 23F 115V NEW LED LAMP R719B-890 Harness Main AC-A 23F Ass'y UL, LED LAMP...
  • Page 28 c. LRT-1471H Model Code Description Material Spec R7119-876 Box Main PCB T0.5*559*331.1 R7119-883 Cover Main PCB Box T0.5*357.07*218.97 R725A-424 Main PCB FR1 TM 220V ℃ 냉동 TMF220C-06 R7503-070 Power Trans 220V 50/60HZ, DT-1213K R719B-900 Harness Main AC-A 49R Ass'y UL, LED LAMP R7613-971 Harness Main AC-B 49R Ass'y UL, LED LAMP...
  • Page 29 d. LFT-1471H Model Code Description Material Spec R7119-876 Box Main PCB T0.5*559*331.1 R7119-883 M-PCB Box Cover T0.5*357.07*218.97 R725B-353 Main PCB FR1 TM 115V℉ FRE TMF115F-A2 R7503-070 Power Trans 220V 50/60HZ, DT-1213K R748A-010 Power Relay OMRON G7L-2A-TUB 220~240VAC HARNESS MAIN AC-A R719C-980 Ass'y UL T49F HALF...
  • Page 30 e. LRT-72H Model Code Description Material Spec R7119-876 Box Main PCB T0.5*559*331.1 R7119-883 M-PCB Box Cover T0.5*357.07*218.97 R725B-343 Main PCB FR1 TM 115V℉ REF TMR115F-A2 R738A-040 Power Trans 220V/50~60HZ DT-1215K R748A-010 Power Relay OMRON G7L-2A-TUB 220~240VAC R719A-591 Harness Main AC-A 72R Ass'y UL HARNESS MAIN AC-B Ass'y UL...
  • Page 31 f. LFT-72H Model Code Description Material Spec R7119-876 Box Main PCB T0.5*559*331.1 R7119-883 M-PCB Box Cover T0.5*357.07*218.97 R725B-353 Main PCB FR1 TM 115V℉ FRE TMF115F-A2 R738A-030 Power Trans 120V60Hz, DT-1215 R748A-030 Power Relay PANASONIC HE2AN-Q-DC12V 25A R719B-940 Harness Main AC-A 72R Ass'y UL HARNESS MAIN AC-B Ass'y UL...
  • Page 32 F. Door Assembly a. LRT-771H, LFT-771H Model Code Description Material Spec R359F-030 Plate Door Rh_Upp STS430 #4 T0.5*829.6*892.3 R359F-040 Plate Door Rh_Low R4122-263 Handle Guard UL94-HB R4122-281 Handle Cover 340.6*6.8 R3932-361 Cap Door Lock 69.8*21.8*20.3 R343A-030 Hinge Grommet POM,WHT 142*153 R828A-200 Assy Hinge Rh PA-6...
  • Page 33 b. LRT-1471H, LFT-1471H Model Code Description Material Spec R359F-030 Plate Door Rh_Upp R359F-040 Plate Door Rh_Low STS430 #4 T0.5*829.6*892.3 R359F-050 Plate Door Lf_Upp R359F-060 Plate Door Lf_Low R4122-263 Handle Guard UL94-HB R4122-281 Handle Cover 340.6*6.8 R828A-190 Assy Hinge Lf PA-6 27*22*82L R828A-200 Assy Hinge Rh...
  • Page 34 c. LRT-72H, LFT-72H Model Code Description Material Spec R359F-030 Plate Door Rh_Upp R359F-040 Plate Door Rh_Low STS430 #4 T0.5*829.6*892.3 R359F-050 Plate Door Lf_Upp R359F-060 Plate Door Lf_Low R4122-263 Handle Guard UL94-HB R4122-281 Handle Cover 340.6*6.8 R828A-190 Assy Hinge Lf PA-6 27*22*82L R828A-200 Assy Hinge Rh...
  • Page 35 G. Evaporator Assembly a. LRT-771H Model Code Description Material Spec R2263-074 Evaporator Assy W330*D246*H105 TM23R R3743-051 Evap Drain Pan Small AL+COATING R1143-202 Evap Drain Insul-S Foam-PS T=17*256*530 R3853-051 Evap Air Guide Left T=0.5*255.3*155.6 R3853-041 Evap Air Guide Right T=0.5*255.3*155.6 R3813-812 EVAP COVER B/K-LF STS430-2B T=1.0*565*34.8...
  • Page 36 b. LFT-771H Model Code Description Material Spec R2263-051 Evaporator Assy CU+AL TM 23F R7313-420 Defrost Heater 220V/445W . WHITE R3743-051 Evap Drain Pan Small R1143-202 Evap Drain Insul-S Foam-PS T=17*256*530 R3813-812 Evap Cover Bracket LF STS430-2B T=1.0*565*34.8 R3813-802 Evap Cover Bracket RH STS304-2B T=1.0*565*34.8 R3853-051...
  • Page 37 c. LRT-1471H Model Code Description Material Spec R2263-084 Evaporator Assy W506*D246*H105 TM49R R3743-041 Evaporator Drain Pan-Mid AL+COATING R1143-222 Evaporator Drain Insul-M Foam-PS T=17*256*622 R3853-800 Evap Cover Support LF STS443CT T=0.5*519.4*176.7 R3853-790 Evap Cover Support RH STS443CT T=0.5*519.4*176.7 R3853-051 Evap Air Guide Left T=0.5*255.3*155.6 R3853-051 Evap Air Guide Left...
  • Page 38 d. LFT-1471H Model Code Description Material Spec R2263-062 Evaporator Assy CU+AL TM 49F R7303-961 Defrost Heater (F49) UL 220V 600W R3743-031 Evap Drain Pan Large AL+COATING R1143-212 Evap Drain Insul-L Foam-PS T=17*256*800 R3853-800 Evap Cover Support LF STS443CT T=0.5*519.4*176.7 R3853-790 Evap Cover Support RH STS443CT T=0.5*519.4*176.7...
  • Page 39 e. LRT-72H Model Code Description Material Spec R840A-012 Evaporator Assy W669*D240*H107 TM72R R3743-031 Evap Drain Pan Large AL+COATING R1143-212 Evap Drain Insul-L Foam-PS T=17*256*800 R3853-800 Evap Cover Support LF STS443CT T=0.5*519.4*176.7 R3853-790 Evap Cover Support RH STS443CT T=0.5*519.4*176.7 R3853-051 Evap Air Guide Left T=0.5*255.3*155.6 R3853-061 Evap Air Guide Mid...
  • Page 40 f. LFT-72H Model Code Description Material Spec R2263-100 Evaporator Assy Cu+AL TM 72F R720A-360 Defrost Heater TM 72F 220V 900W 53.8Ω R3743-240 Evap Drain Pan L T=0.8*1040*258 R1143-380 Evap Drain Insul-L Foam-PS T=17*256*1040 R3853-800 Evap Cover Support LF STS443CT T=0.5*519.4*176.7 R3853-790 Evap Cover Support RH STS443CT...
  • Page 41 H. Vapori Assembly a. LRT-771H, LFT-771H, LFT-1471H Model Code Description Material Spec R8522-010 Vapori AS TM ABS+DC FAN R3422-012 Case Vapori 602.5*275*106.5 R3422-050 Cover DC Motor T49 280.5*131*11.5 R3422-030 Case DC Motor T49 283*143.5*69.5 R831A-030 Ass’y DC Motor Vapori DC12V, DA08025B12MF R1154-090 Wicking Drain Water 2.5T*480*63.5...
  • Page 42 b. LRT-1471H Model Code Description Material Spec R8522-040 Vapori AS TM ABS+DC FAN+HEATER R3422-012 Case Vapori 602.5*275*106.5 R3422-050 Cover DC Motor T49 280.5*131*11.5 R3422-030 Case DC Motor T49 283*143.5*69.5 R831A-030 Ass’y DC Motor Vapori DC12V, DA08025B12MF R3743-400 Holder Vapori Heater Silicon 33*20*13.5 R720A-080...
  • Page 43 c. LRT-72H Model Code Description Material Spec R858A-420 Vapori AS TM ABS+DC FAN+HEATER R3422-012 Case Vapori 602.5*275*106.5 R3422-050 Cover DC Motor T49 280.5*131*11.5 R3422-030 Case DC Motor T49 283*143.5*69.5 R831A-030 Ass’y DC Motor Vapori DC12V, DA08025B12MF R3743-400 Holder Vapori Heater Silicon 33*20*13.5 220V 50W 968Ω...
  • Page 44 d. LFT-72H Model Code Description Material Spec R858A-420 Vapori AS TM ABS+DC FAN+HEATER R3422-012 Case Vapori 602.5*275*106.5 R3422-050 Cover DC Motor T49 280.5*131*11.5 R3422-030 Case DC Motor T49 283*143.5*69.5 R831A-030 Ass’y DC Motor Vapori DC12V, DA08025B12MF R3743-400 Holder Vapori Heater Silicon 33*20*13.5 220V 50W 968Ω...

  • Page 45: Wiring Diagram

    3. WIRING DIAGRAM ◇ T23R ◇ T23F...
  • Page 46 ◇ T49R ◇ T49F...
  • Page 47 ◇ T72R ◇ T72F...

  • Page 48: Main Components

    4. MAIN COMPONENTS 4-1.COMPRESSOR LRT-771PC MODEL LFT-771PC LFT-1471PC LRT-72T LFT-72T LRT-1471PC Refrigerant R-134A R-404A R-404A R-134A R-404A Voltage 220V Comp. Model SK1A1Q-L2U SC12CLX2 SC18CLX2 SC18G GS26CLX Part R7439-170 R714A-030 R7439-530 R714A-150 R714A-020 (DY) code Image 4-2.POWER-RELAY(COMP. RELAY) MODEL LFT-1471H, LRT-72H LFT-72H Voltage 220V / 50Hz...
  • Page 49 4-3. STARTING CAPACITOR MODEL LFT-1471PC Spec 220V/125 ㎌ 220V/50HZ Part (DY) R7549-300 code Assy Relay Box Image 11-7053 72F 4-4. RUNNING CAPACITOR MODEL LRT-771PC, LRT-1471PC Spec 350V AC 8 ㎌, 2P Part (DY) R7549-140 code Image 4-5. DRYER LRT-771H LFT-771H, MODEL LFT-1471H LRT-72H...
  • Page 50 4-6.CONDENSER COIL LRT-771H, LFT-771H, MODEL LFT-1471H/LRT-72H LFT-72H LRT-1471H Spec ￠4.76*13190 CU+AL R4*S10*L19202 CU+AL R3*S10*L17806 Part (DY) R2202-033 R865A-090 R865A-080 code Image 4-7. CONDENSER FAN BLADE MODEL Spec AL. ￠225. 9" C.W Part (DY) R3723-070 code Image 4-8. CONDENSER FAN MOTOR MODEL Voltage 220V 50~60HZ.9W.CCW...
  • Page 51 4-9. BRACKET C-FAN MOTOR MODEL Motor Model SBHG1-0 T2 Part (DY) R315A-050 code Image 4-10. EVAPORATOR FAN MOTOR MODEL Voltage 220V 50~60HZ.9W.CCW Motor Model DAI-8204DYCA-1 CCW Part (DY) R7423-053 code Image 4-11.EVAPORATOR COIL MODEL LRT-771H LRT-1471H LFT-771H LFT-1471H LRT-72H LFT-72H Spec CU+AL CU+AL...
  • Page 52 4-12. EVAPORATOR DEFROST HEATER LFT-72H MODEL LFT-771H LFT-1471H Voltage UL 220V 900W Spec 445W 600W Part (DY) R7313-420 R7303-961 R720A-360 code Image 4-13. EVAP FAN BLADE MODEL Spec 8". C.C.W Part (DY) R3729-010 code Image 4-14. EVAPORATOR FAN MOTOR GUARD MODEL Spec HIPS (VH-1800EX), WHITE...
  • Page 53 4-16. MAIN PCB MODEL LRT-771PC, LRT-1471PC, LRT-72T LFT-771PC, LFT-1471PC, LFT-72T Spec FR1 TM 220V ℃ REF TMR220C-05 FR1 TM 220V ℃ FRE TMF220C-05 Part (DY) R725A-414 R725A-424 code 4-17. FRONT PCB MODEL Spec 88 SEGMENT. ℉ Part R725C-220 (DY) code 입수후...
  • Page 54 4-19. POWER CORD LRT-771PC,LFT-771PC,LRT-1471PC,LFT- MODEL LFT-72H 1471PC,LRT-72T Spec 250V 10A UL-E313867/SJT 12AWG/4C R7363- Part R7363-260 R729A-010 code Image 4-20. EVAPORATOR THERMAL FUSE (BIMETAL) MODEL LFT-771H LFT-1471H LFT-72H Spec MAX 72±5℃ Part (DY) R7253-052 code Image 4-21. TEMP-THERMISTOR, REF/FRE MODEL LRT-771H, LFT-771H LRT-1471H, LFT-1471H LRT-72H, LFT-72H Spec...
  • Page 55 4-22. DEFROST SENSOR (D/-SENSOR, Evap-SENSOR) MODEL LFT-771H LFT-1471H LFT-72H Spec AT25℃, 10.75KΩ±1%, -25~25 Part (DY) R7213-422 code Image 4-23. HARNESS SWITCH MODEL LRT-771H, LFT-771H LRT-1471H, LFT-1471H LRT-72H, LFT-72H Spec UL, AWG 18 Part (DY) R7523-261 R719C-920 R719A-072 code Image 4-24. VAPORI AS LRT-771PC, MODEL LFT-771PC,...
  • Page 56 4-25. CASE VAPORI MODEL Spec ABS, 602.5*275*106.5 Part (DY) R3422-012 code Image 4-26. ASSY MOTOR DC VAPORI MODEL Spec DC 12V, 3000RPM, DA08025B12MF Part (DY) R831A-030 code Image 4-27. HEATER VAPORI MODEL LRT-1471PC, LRT-72T Spec 220V 50W 968Ω SHEATH HEATER Part R720A- R7703-290...
  • Page 57 4-29. HEATER DRAIN PAN MODEL LFT-771H LFT-1471H LFT-72H Spec 220V/90W 220V/140W 220V/180W Part (DY) R720A-560 R720A-570 R720A-580 code Image 4-30. SENSOR BRACKET MODEL Spec PP. WHT Part (DY) R3314-192 code Image 4-31. CASTER MODEL LRT-771H, LFT-771H LRT-1471H, LFT-1471H LRT-72H, LFT-72H Spec SPCC 4"...
  • Page 58 4-32. SWITCH PUSH MODEL LRT-771H, LFT-771H LRT-1471H, LFT-1471H LRT-72H, LFT-72H Spec SP201-7D 125VAC1.5A Part (DY) R7203-010 code Q’ty Image 4-33. DOOR LOCKING ASSY MODEL LRT-771H, LFT-771H LRT-1471H, LFT-1471H LRT-72H, LFT-72H Spec ZDC, ZCR Part (DY) R3734-030 code Q’ty Image 4-34. POWER SWITCH MODEL Spec LIGHT COUNTRY(R19A) 10A/115V...
  • Page 59 4-35. ASSY SHELF CLIP MODEL LRT-771H, LFT-771H LRT-1471H, LFT-1471H LRT-72H, LFT-72H Spec 14 SET 26 SET 36 SET Part (DY) R8429-022 R8429-012 R835A-010 code Image 4-36. SHELF STANDARD. L MODEL LRT-771H, LFT-771H LRT-1471H, LFT-1471H LRT-72H, LFT-72H Spec AL, T1.2*L930 Part (DY) R3373-630 code...
  • Page 60 4-37. DOOR GASKET MODEL LRT-771H, LFT-771H LRT-1471H, LFT-1471H LRT-72H, LFT-72H Spec RD-PVC.BLK, 610*737 Part (DY) R338A-110 code Q’ty Image 4-38. ASSY HINGE LRT-771H, LFT-771H LRT-1471H, LFT-1471H MODEL LRT-1471H, LRT-72H LRT-72H, LFT-72H LFT-1471H, LFT-72H Spec STS304 T3.0 R828A-260 ASSY HINGE BK LOW RH R828A-250 ASSY HINGE BK LOW LF Part...
  • Page 61 4-39. ASSY HINGE LRT-1471H, LFT-1471H MODEL LRT-771H, LFT-771H LRT-72H, LFT-72H Spec Part (DY) R828A-190 R828A-200 code Image 4-40. DOOR ASSY LRT-771H, LFT-771H LRT-1471H, LFT-1471H MODEL LRT-1471H, LFT-1471H LRT-72H, LFT-72H LRT-72H, LFT-72H LF UPP RH UPP Spec LF LOW RH LOW Part R817C-080 (DY)
  • Page 62 4-41. ASSY CROSS BAR LRT-1471H, LFT- MODEL LRT-771H, LFT-771H LRT-72H, LFT-72H 1471H, Spec 220V, 7W 220V, 15W SWST OD4.76*T0.7 SWST OD4.76*T0.7 R816B-120 R816B-170 R816B-180 Image 4-42. CHECK VALVE AS LFT-1471H, LRT-72H, MODEL LRT-771H, LFT-771H, LRT-1471H LFT-72H Spec ABS + FILTER Part (DY) R8173-130...

  • Page 63: Electronic Control Instructions

    5. ELECTRONIC CONTROL INSTRUCTIONS 5-1. FREEZER CONTROL 5-1-1. HOW TO USE THE DISPLAY PCB PANEL...

  • Page 64: Electronic Control Instructions

    5. ELECTRONIC CONTROL INSTRUCTIONS 5-1-2. FUNCTION TABLE & MANUAL DEFROST Function Content Display . First 2 sec Ver. 1. OFF for 2 sec ℉ : F8, ℃ : FC 2. Display current Temp. and BUZZ 1 time. After 2 sec Power On 3.
  • Page 65 1. If the defrost period passes defrost starts from pre-cool. 2. - 1. 5H : 5 Hr - 2. 6H : 6Hr - 3. 8H : 8 Hr(DEFAULT) Defrost - 4. AH : 10Hr 3. Push △ for 5 sec to display defrost period 4.
  • Page 66 1. Sensor Temp. Check & Set-up 1) Push △ & hit ▼ 3 times. 2) 1. dS : Displays D-Sensor → hit ▼ 2. D-Sensor Temp → hit ▼ D-Sensor 3. rS : Displays R-S → hit ▼ . dS Check 4.
  • Page 67 5. ELECTRONIC CONTROL INSTRUCTIONS 5-1-3. ERROR CODE TABLE Temp. Display Condition Function Display R-Sensor OPEN - Comp ON : 18 MINUTES - Comp OFF: 6 MINUTES 28.4℉ R-Sensor SHORT If R-Sensor is above 28.4℉ 20 min. after the Defrost D-Sensor OPEN/SHORT started, terminate the Defrost.
  • Page 68 5. ELECTRONIC CONTROL INSTRUCTIONS 5-2. REFRIGERATOR CONTROL 5-2-1. HOW TO USE THE DISPLAY PCB PANEL Default Temp. Range Level REF. -2~4 ℃ FEZ. -23~-15 REF. 28~39 ℉ FEZ. -9~5...

  • Page 69: Control Board Layout

    • Control Board Layout Test Switch CON14 Transformer Sensor CON3,15 LED CON9 Room CON5 Defrost SENSOR CON10 Display cable 10P CON11 Display cable 8P CON1 CON13 CON12 CON6 Transformer AC CON2 Vaporizer CON1 Door Signal CON7 Cabinet Compressor Power Cord Transformer AC Heater CON4...

  • Page 70: Function Table

    5. ELECTRONIC CONTROL INSTRUCTIONS 5-2-2. FUNCTION TABLE Function Content OFF for 2 sec First 2 sec Ver. ℉ : F8, ℃ : FC - After 2 sec Present ℃/℉ - Blinks Model name 5 times. - LED blinks 3 times. Present ℃/℉...
  • Page 71 Resting After heater is Off there is a 5 min resting period. Period - HEATER, FAN, COMP ALL OFF. - After Resting Period FAN is off for Maximum 5min. - Only COMP Operates for the EVA 4. FAN Off - If Temp. is under 14℉(-10℃) before 5 min, FAN will go off and activate normal operation.
  • Page 72 a) COMP Operation 1) COMP 5 min OFF (COMP disabled for 5 min) 2) Operate by Temperature Value. 3) If Temp. Value hits the OFF Temp. the Comp. does not operate for 5 min. b) AC Load Control 1) Each Part does not operate together, each operate by a 1.5 sec term. COMP 1.5sec 1.5초...
  • Page 73 a) Forced Defrost 1) Display : 888SEGMENT – “ds” 2) Content : ① Press SW3(▽) during 1) to Force Defrost. ② 888 SEGMENT - "dF" b) Mode Control 1) Display : 888 SEGMENT. After 1 sec 2) Content : Press SW(△) to change mode - OFF Temp.-> DIF Change -> Adjust Temp.gap ->...
  • Page 74 c) Each part TEST 1) Display : 888SEGMENT – “St” 2) Content : Press SW4(△) 0~3 Mode Change. 3) Each part TEST Cancel : 15sec auto return. 단계 Function Time DISPLAY 비고 10sec auto All OFF return COMP ON ∞ FAN ON COMP OFF R Model does not have...
  • Page 75 f) ℃/℉ Change 1) Press SW(▽) - F -> C 2) 15sec auto save. g) Cord H/T Change ① Press SW(▽) - "00"->"02"->"04" -> ~ "30" -> "40" -> "100" -> "00" Display Display "00" Cord H/T Off "15" 15min 10min "02"...
  • Page 76 k) Condenser Alarm 1) Content Hold △ & hit ▼ 3 times to enter Mode. Press △ To Check period.. ① SEGMENT : display value ② Operation : Normal Operation 2) Adjustment ① Press △ to adjust period. 0 -> 3 -> 6 -> 9 -> 0 cycle. 0 : Disable 3 : 3 months 6 : 6 months...
  • Page 77 2. Check Error * Errors will be displayed, if there is no error Display "nO". Error code Code Error explanation Status of Unit DISPLAY Disconnected Sensor or Room temp is under-58℉ S1-SENSOR Operate (Room Sensor) Error mode Shortage of Sensor or Room temp is under 149℉...
  • Page 78 if cabinet temp is keeping Normal Hi temp Ref 45℉ for 8 hr Operation E²PROM cannot Read & Normal E²PROM Error Write Operation Operate Open Door if Door S/W is open for 1 Hr Error mode Vapor Pan Vapor Fan is not Normal Error connected of error...

  • Page 79: Service Diagnosis

    Ⅴ. Service Diagnosis A. Diagnosis Chart Problem Possible Cause Remedy 1. Compress will 1. Power Switch 1. "OFF" position. 1. Move to "ON' position. 2. Loose connection. 2. Tighten. start - no 3. Failure. 3. Call electrician. current 2. Cord and Plug 1.
  • Page 80 4. Cabinet inside 1. Compressor Relay 1. Defective. ( 115V to 1. Check and replace. temperature relay coil.) 2. Circuit Board 1. Defective. ( Compressor 1. Replace. high; relay coil not compressor energized will at 115V.) not start Problem Possible Cause Remedy 5.
  • Page 81 not defrost 2. Defrost 1. Not enough defrosts 1. Freezer ; See "C. 1. 5 completely occurring per day. Defrost System." Operation in humid 2. Refrigerator : "C. 1. 6 conditions. Defrost System." 3. Check D-Sensor position. 3. Defrost Heaters 1.
  • Page 82 ssor. Evacuate and recharge if necessary. 3. Defective. 3. Replace. 3. Fan 1. Fan blade loose. 1. Adjust and tighten. 2. Defective motor. 2. Replace. 4. Relay 1. Chattering. 1. Replace. Thermistors (semiconductors) are used for the cabinet control sensor and defrost termination sensor.
  • Page 85 5. ELECTRONIC CONTROL INSTRUCTIONS 5-2-3. ERROR CODE Display Content Segment Function R-Sensor OPEN - Comp ON : 6 MINUTES - Comp OFF: 11 MINUTES R-Sensor SHORT RT-Sensor OPEN/SHORT Room Temp. - BOX HEATER 100% On...

  • Page 86: Part List

    6. PART-LIST Solid Code Part name Description R23T F23T R49T F49T R72T F72T COMPRESSOR R7439-170 COMPRESSOR SK1A1Q-L2U R714A-030 COMPRESSOR SC12CLX2 R7439-530 COMPRESSOR SC18CLX2 R714A-150 COMPRESSOR SC18G R714A-020 COMPRESSOR GS26CLX R719B-880 HARNESS MAIN AC-A T23R 115V NEW LED LAMP TYPE R719B-890 HARNESS MAIN AC-A T23F 115V NEW LED LAMP R719B-900...
  • Page 87 R858C-900 VAPORI AS T72R ABS, DC12V, 115V/50W R858C-910 VAPORI AS T72F ABS, DC12V EVAPORATOR R2263-074 ASSY EVAPORATOR AL, W330*D246*H105 TM23R R2263-051 ASSY EVAPORATOR CU+AL, T23F R2263-084 ASSY EVAPORATOR AL, W506*D246*H105 TM49R R2263-062 ASSY EVAPORATOR CU+AL, T49F R840A-012 ASSY EVAPORATOR AL, W669*D240*H107 TM72R R2263-100 ASSY EVAPORATOR CU+AL, T72F...
  • Page 88 R5133-160 MASCOT AL, LASSEL 영문 157.7*40 FR1 TM 220V ℃ 냉동 R725A-424 MAIN PCB TMF220C-06 FR1 FR1 TM 220V ℃ 냉장 R725A-414 MAIN PCB TMR220C-06 R4142-123 CONTROL BOARD ABS/BLACK BM/TM T2*242*72 88 DISPLAY-DP1 기타 BUYER R725C-220 FRONT PCB TM 공용 R511A-490 INLAY CONTROL 88 DISPLAY-DP1 ℉- TM...
  • Page 89 CASTOR BOX ASSY R3323-230 CASTOR MOVE SPCC 4" R3323-240 CASTOR STOP SPCC 4" R3074-030 SPANNER 3T, GI+ZN COATING R397A-020 WASHER CASTER GI T2*ID24*OD60 ※COMP SPEC PART-LIST Supplier's Compressor Application Model Names Part Spec Item Code Daeyeong E&B Fresh Town R714A-030 Compressor Set (Total Price) R730A-010 SC12CLX.2 OLP...

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Lft-23hLrt-49hLft-49hLrt-72hLft-72h

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