lassele LFT-771E, LRT-771E, LFT-1471E, LRT-1471E Service Manual

Commercial

Upright Refrigerator & Freezer

Service Manual

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

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.

ㆍ During repairing, make sure wirings such as HARNESS, WIRE JOINT are
sturdy so that it is free of danger due to disclosure of core wire.

- Don’t let it derail when certain strength is put on.

ㆍ When repairing, take out the dust or foreign body (Housing part, wiring part,
contact point part).

- It prevents danger of fire such as TRACKING, SHORT.

ㆍ Check whether water has gone into the electric parts.

- When there are traces of water, exchange the parts or enact the TRACKING
prevention device.

ㆍ After repairing, check the assembly status of the parts.

- Keep the status as it was before the repairing. .

ㆍ After checking the usage environment of the product and if the installation is
unstable, change the usage location.

- For installations in places with moisture, water and for heat devices, prevent
placing products near igniting materials etc.

ㆍ When earthing is needed, earth it.

- For cases when electric leakage is concerned due to moisture or water,
be sure to earth it.

ㆍ For products that consumes power such as electric products, make sure
numerous plugs are not used in a single outlet.

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˚

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˚

2. PART

A. MainAssembly

a. LRT-771E

NO.

Model Code

Description

Qty

Material

Spec

B

R7439-170

Compressor

1 - SK1A1Q-L2U, 220V 50HZ, R-134a

B1

R395A-020

Compressor Bolt

4 - Φ10, 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_TM23

1

STS430 #4

TM 23. 220V/50,60Hz

E

R829A-330

Ass’y Control Box

1

-

TM23R ℃TYPE LEDLAMP

220V/50Hz

F

R817A-050

Ass'y Door RH TM

1

STS430 #4

LFT-72T

b. LFT-771E

NO.

Model Code

Description

Qty

Material

Spec

B

R714A-030

Compressor

1 - SC12CLX2 220V/50/60Hz

B1

Z394A-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

E

R829A-360

Ass’y Control Box

1 - TM23F ℃TYPE LEDLAMP220V/50.60

F

R817A-050

Ass'y Door RH TM

1

STS430 #4

LFT-72T

c. LRT-1471E

NO.

Model Code

Description

Qty

Material

Spec

B

R7439-170

Compressor

1 - SK1A1Q-L2U, 220V 50HZ, R-134a

B1

R395A-020

Compressor Bolt

4 - Φ10, M6x36 ZPW,

B2

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

E

R829A-380

Ass’y Control Box

1

-

TM49R ℃TYPE LEDLAMP 220V/50Hz

F

R817A-040

Ass'y Door LF TM

1

STS430 #4

LFT-72T

R817A-050

Ass'y Door RH TM

1

STS430 #4

LFT-72T

d. LFT-1471E

NO.

Model Code

Description

Qty

Material

Spec

B

R7439-530

Compressor

1 - SC18CLX2, 220~240V 50Hz

B1

R395A-020

Compressor Bolt

4 - Φ10, 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 Box

1

-

TM49F ℃TYPE LED LAMP
220V/50Hz

F

R817A-040

Ass'y Door LF TM

1

STS430 #4

LFT-72T

R817A-050

Ass'y Door RH TM

1

STS430 #4

LFT-72T

B. Assembly Uint

a. LRT-771E

NO.

Model Code

Description

Qty

Material

Spec

1

R2113-992

Pipe Discharge

1

Cu

Φ6.35*T0.7*L650

2

R2113-981

Pipe Connect Dryer

1

Cu

Φ4.76*T0.7*L220

3

R2183-032

Dryer Ass’y 1 Cu

R-134a, 36G

4

R2104-981

Pipe Dryer 1 Cu

- 5 R8603-833

Ass'y Suction Pipe

1

Cu

Φ3.0*ID1.4*3100

6

R2104-610

Tube Vaccum

1

Cu

Φ6.35*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

Condenser Fan Motor

1 - 220V 50~60Hz.9W.CCW

10

R315A-050

Bracket C-Fan Motor

1

GI

T2.0

11

R3813-791

Condenser Fan Cover wire

1

MSWR10

∮2.5

G1

R7519-070

Overload Protector

1 - 4TM795tfb-53

G2

R7543-110

PTC Relay 1 -

220M

G3

R3813-900

Cover Relay 1 -

-

b. LFT-771E

NO.

Model Code

Description

Qty

Material

Spec

1

R2113-992

Pipe Discharge T23F

1

Cu

Φ6.35*T0.7*L650

2

R2113-981

Pipe Connect Dryer

1

Cu

Φ4.76*T0.7*L220

3

R2183-032

Dryer Ass’y 1 Cu

R-134a, 36G

4

R2104-981

Pipe Dryer 1 Cu

-

5

R8603-824

PIPE SUCTION T23F

1

Cu

CAPI OD3.0XID1.4X4800

6

R2104-610

Tube Vaccum

1

Cu

Φ6.35*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

1 - 220V 50~60Hz.9W.CCW

11

R315A-050

Bracket C-Fan Motor

1

GI

T2.0

12

R3813-791

Condenser Fan Cover wire

1

MSWR10

∮2.5

a2

R730A-010

Starting Relay

1 - SC12CLX2. 117U6020

b

Cover 1 -

103N2008

c

Starting Capacitor 240uF

1 - 117U5023

d

Cord Relief

1

103N1004

c. LRT-1471E

NO.

Model Code

Description

Qty

Material

Spec

1

R319A-240

Pipe Discharge

1

Cu, CT-1220

Φ4.7*T0.7

2

R2113-981

Pipe Connect Dryer

1

Cu

Φ4.76*T0.7*220

3

R2183-032

Dryer Ass’y 1 Cu

R-134a, 36G

4

R319A-580

PIPE CONDENSER DRYER

1

Cu

Φ4.76*T0.7*412

5

R845A-050

Ass'y Suction Pipe T49F

1

Cu

OD ￠3.0XID1.4XL4800 LFT­1471E

6

R2104-610

Tube Vaccum

1

Cu

Φ6.35*T0.6*120

7

R2183-032

Condenrser COIL

1

SWST+MSWR10

SWST ￠4.76*13190

8

R3723-070

Condenser Fan Blade

1

AL

220V FAN MOTOR AL 9" CCW

9

R7423-063

Condenser Fan Motor

1 - 220V 50~60Hz.9W.CCW

10

R315A-050

Bracket C-Fan Motor

1

GI

T2.0

11

R3813-791

Condenser Fan Cover wire

1

MSWR10

∮2.5

d. LFT-1471E

NO.

Model Code

Description

Qty

Material

Spec

1

R2113-570

Discharge Connector

1

CU

Φ6.35*T0.7*1215

2

R845A-050

Ass'y Suction Pipe T49F

1

Cu

OD ￠3.0XID1.4XL4800 LFT­1471E

3

R319A-580

Pipe Condenser Dryer

1

Cu

Φ4.76*T0.7*482.8

4

R2183-200

Dryer Ass’y

1

Cu

R404A, Φ25.7*169

5

R2104-982

Pipe Dryer

1

Cu

Φ4.76*T0.7*506.5

6

R2114-321

Comp Charging Pipe

1

Cu

Φ6.35*T0.7

7

R876A-010

Ass’y Relay Box

1

-

Code No : 117-7045

R7549-300

Running CAPACITOR

-

220V/125 ㎌ 220V/50HZ

8

R2272-013

Condenrser COIL

1

CU

370*184, MSF-49NM

9

R3723-070

Condenser Fan Blade

1

AL

220V FAN MOTOR AL 9" CCW

10

R7423-063

Condenser Fan Motor

1 - 220V 50~60HZ.9W.CCW

11

R315A-050

Bracket C-Fan Motor

1

GI

T2.0

12

R3813-781

Condenser Fan Cover wire

1

MSWR10

∮2.5

C. Body Assembly

a. LRT-771E, LFT-771E

NO.

Model Code

Description

Qty

Material

Spec

1

R376A-030

SUPPOTER RAIL A LF

2

STS443CT-2B

T1*110.6*1041

2

R364A-010

RAIL GASTRONORM

6

STS443CT-2B

T1.0*44*587

3

R332A-170

DUCT TOP A T23

1

STS443CT-2B

T0.5*918*545.3

4

R332A-110

DUCT A LF T23

1

STS443CT-2B

T0.5*93.9*74.4

5

R332A-120

DUCT A RH T23

1

STS443CT-2B

T0.5*93.9*74.4

6

R332A-200

DUCT 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

T1*110.6*1041

11

R371A-030

SHELF -GN23,49

3

MSWR10

W523*D580 GN-TYPE

G

R8173-130

CHEAK VALVE AS

2 - -

G1

R3253-050

FILTER CHECK VALVE

1

FILTER FOME

#10. T10. BLK

G2

R3253-041

CAP CHECK VALVE

1

ABS

45.5*45.5*23.5

G3

R3253-061

PACKING FALP

1

PE

T4. WHITE

G4

R3253-030

FLAP CHECK VALVE

1

ABS

40.5*45*36

G5

R3253-020

BODY CHECK VALVE

1

ABS

60*60*75.05

b. LRT-1471E

NO.

Model Code

Description

Qty

Material

Spec

1

R325A-030

Cover Corner

8

ABS

28.5*28.5*53

2

R3314-601

U-COVER BRACKET A

3

GI

T1.2*61*20

3

R376A-050

SUPPOTER RAIL B LF

6

STS443CT-2B

T1*118.1*1041

4

R364A-010

RAIL GASTRONORM

12

STS443CT-2B

T1*44*587

5

R376A-070

SUPPORTER RAIL,C

1

STS443CT-2B

T1*302.6*1041

6

R332A-070

DUCT TOP, A49F

1

STS443CT-2B

T0.5*540.5*172.3

7

R332A-130

DUCT TOP A LF T49

1

STS443CT-2B

T0.5*93.9*74.4

8

R332A-140

DUCT TOP A RH T49

1

STS443CT-2B

T0.5*195.4*82.9

9

R332A-080

DUCT TOP, B49F

1

STS443CT-2B

T0.5*540.5*172.3

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

SUPPOTER RAIL, D

1

STS443CT-2B

T1.0*290.6*1041

14

R816A-310

ASSU CROSS BAR 49F

1

-

LFT-1471E

15

R3323-200

CASTER 2 -

4"MOVING/STOPING

16

R3323-190

CASTER 2 -

4"MOVING

17

R371A-030

SHELF -GN23,49

3

MSWR10

W523*D580 GN-TYPE

18

R371A-030

SHELF -GN23,49

3

MSWR10

W523*D580 GN-TYPE

G

R8173-130

Check Valve As

1

ABS

-

G1

R3253-050

Filter Check Valve

1

Filter Foam

#10, T10, Black

G2

R3253-041

Cap Check Valve

1

ABS

45.5*45.5*23.5

G3

R3253-061

Packing Flap

1

PE

T=4, White

G4

R3253-030

Flap Check Valve

1

ABS

40.5*45*36

G5

R3253-020

Body Check Valve

1

ABS

60*60*75.05

c. LFT-1471E

NO.

Model Code

Description

Qty

Material

Spec

1

R325A-030

Cover Corner

8

ABS

28.5*28.5*53

2

R3314-601

U-COVER BRACKET A

3

GI

T1.2*61*20

3

R376A-050

SUPPOTER RAIL B LF

6

STS443CT-2B

T1*118.1*1041

4

R364A-010

RAIL GASTRONORM

12

STS443CT-2B

T1*44*587

5

R376A-070

SUPPORTER RAIL,C

1

STS443CT-2B

T1*302.6*1041

6

R332A-070

DUCT TOP, A49F

1

STS443CT-2B

T0.5*540.5*172.3

7

R332A-130

DUCT TOP A LF T49

1

STS443CT-2B

T0.5*93.9*74.4

8

R332A-140

DUCT TOP A RH T49

1

STS443CT-2B

T0.5*195.4*82.9

9

R332A-080

DUCT TOP, B49F

1

STS443CT-2B

T0.5*540.5*172.3

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

SUPPOTER RAIL, D

1

STS443CT-2B

T1.0*290.6*1041

14

R816A-310

ASSU CROSS BAR 49F

1

-

LFT-1471E

15

R3323-230

CASTER

2

4" MOVE

-

16

R3323-240

CASTER

2

4" STOP

-

17

R371A-030

SHELF -GN23,49

3

MSWR10

W523*D580 GN-TYPE

18

R371A-030

SHELF -GN23,49

3

MSWR10

W523*D580 GN-TYPE

G

R8173-130

Check Valve As

2

ABS

-

G1

R3253-050

Filter Check Valve

2

Filter Foam

#10, T10, Black

G2

R3253-041

Cap Check Valve

2

ABS

45.5*45.5*23.5

G3

R3253-061

Packing Flap

2

PE

T=4, White

G4

R3253-030

Flap Check Valve

2

ABS

40.5*45*36

G5

R3253-020

Body Check Valve

2

ABS

60*60*75.05

D. Top Grill Assembly

a. LRT-771E, LFT-771E

NO.

Model Code

Description

Qty

Material

Spec

1

R818B-060

Assy Grill Top_TM23

1

STS430 #4

TM 23. 220V/50,60Hz

2

R7204-070

Power Switch

1 - LIGHT COUNTRY(R19A) 10A/115V

3

R7203-010

Switch Puch

1 - SP201-7D 125VAC1.5A

4

R3734-030

Door Locking Ass’y

1 - ZDC, ZCR

5

R511A-540

Inlay Control

1 - 수출 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*39 WHITE 내수수출 R/F
고급형 SIDETABLE

8

R7613-860

Harness F-PCB 8P B

1 - AGW24, 8P, L450

9

R7613-880

Harness F-PCB 10P B

1 - AGW24, 10P, L450

10

R7523-261

Harness Switch T23

2 - UL AWG18

11

R5133-160

MASCOT

1

AL

LASSELE 157.7*40

b. LRT-1471E, LFT-1471E

NO.

Model Code

Description

Qty

Material

Spec

1

R818B-070

Assy Grill Top_TM49

1

STS430 #4

TM 49. 220V/50,60Hz

2

R7204-070

Power Switch

1 - SL112A. 125V 15A

3

R7203-010

Switch Puch

2 - SP201-7D, 125VAC 1.5A

4

R3734-030

Door Locking Ass’y

2 - ZDC. ZCR

5

R511A-540

Inlay Control

1 - 수출 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*39 WHITE 내수수출 R/F
고급형 SIDETABLE

8

R7613-860

Harness F-PCB 8P B

1 - AGW24, 8P, L450

9

R7613-880

Harness F-PCB 10P B

1 - AGW24, 10P, L450

10

R7523-270

Harness Switch T49

2 - UL AWG18

11

R5133-160

MASCOT

1

AL

LASSELE 157.7*40

E. Main PCB Box

a. LRT-771E

NO.

Model Code

Description

Qty

Material

Spec

1

R7119-876

Box Main PCB

1

GI

T0.5*559*331.1

2

R7119-882

Cover Main PCB BOX

1

GI

T0.5*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

1 - T23R 220~240V/50Hz

6

R7613-893

Harness Main DC TM-R

1 - Ass'y UL 7 - - - - - 8 R7549-140

Running Capacitor

1 - 350V AC 8 ㎌, 2P

9

R3834-130

Cable Clamp

2

Nylon-66

DA-18N

b. LFT-771E

NO.

Model Code

Description

Qty

Material

Spec

1

R7119-876

Box Main PCB

1

GI

T0.5*559*331.1

2

R7119-882

COVER MAIN PCB BOX

1

GI

T0.5*357.07*218.97

3

R725B-050

Main PCB

1

FR1

FR1. 165*115(220V ℃)냉동-7338

4

R7504-060

Power Trans

1 - 120V60Hz, DT-1213

5

R719A-560

Harness Main AC-A 23F

1 - 115V NEW LED LAMP

R719A-810

Harness Main AC-B 23F

1 - T23F 220~240V/50Hz 220V/60Hz

6

R7613-903

Harness Main DC TM-F

1 - Ass'y UL

c. LRT-1471E

NO.

Model Code

Description

Qty

Material

Spec

1

R7119-876

Box Main PCB

1

GI

T0.5*559*331.1

2

R7119-882

Cover Main PCB BOX

1

GI

T0.5*357.07*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'y UL, LED LAMP

6

R7613-893

Harness Main DC TM-R

1 - Ass'y UL

7 - - - -

-

8

R7549-140

Running Capacitor

1 - 350V AC 8 ㎌, 2P

9

R3834-130

Cable Clamp

2

Nylon-66

DA-18N