Mega Top Prep Table

Service Manual

Commercial

Refrigerator

Model: MST-28-12

MST-72-30

MST-48-18 MST-60-24

1-2. MST-48-18 EXPLODED VIEW

1-3. MST-60-24 EXPLODED VIEW

2-2. MST-60-24 / MST-72-30

5. PARTS LIST

2-1. MST-28-12 / MST-48-18

6. REPLACEMENT OF MAIN COMPONENTS

1-4. MST-72-30 EXPLODED VIEW

3. MAIN COMPONENTS

4. TEMPERATURE CONTROL INSTRUCTION

1. EXPLODED VIEW

1-1. MST-28-12 EXPLODED VIEW

TABLE OF CONTENTS

2. WIRING DIAGRAMS

6-1. REPLACING DOOR

6-2. REFRIGERATION COMPARTMENT PARTS

6-3. COMPRESSOR COMPARTMENT PARTS

6-4. REPLACING THE EVAPORATOR & EVAPORATOR FAN MOTOR

1 11 21

2 12 LOUVE 22 EVAPORATOR DUCT

3 13 PAN DUCT SIDE(LF) 23 PAN DUCT FRONT

4 14 PAN DUCT MID 24

5 15

6 HOOD 16

7 HOOD LID 17

8 18

9 19

10 20

EVAPORATOR FAN DUCT TAMPERATURE CONTROL COVER

1-1. MST-28-12 EXPLODED VIEW

◎ Part Name

COMPRESSOR CASTER

DOOR ASSEMBLY

SHELF

1. EXPLODED VIEW

CABINET ASSEMBLY

CONDENSER ASSEMBLY

EVAPORATOR ASSEMBLY

BOARD KITCHEN BOTTOM HINGE

COUNTER TOP TOP HINGE

MECH COVER PAN DUCT SIDE(RH)

BRACKET BOARD KITCHEN

EVAPORATOR DRAIN GUI

1

2

4

3

5

67

11

13

14

15

2221

20

19

18

12

1617

8

9

10

23 24

1 13 25

2 14 EVAPORATOR 26

3 15 EVAP DRAIN GUIDE 27

4 16 PAN DUCT SIDE(LF) 28

5 17 PAN DUCT MID 29

6 18

7 19 PAN DUCT FRONT

8 20 TOP HINGE(LF)

9 21 DOOR ASSEMBLY(LF)

10 22

11 23

12 24

BOARD KITCHEN

EVAPORATOR FAN DUCT

◎ Part Name

BOTTOM HINGE(RH)

HOOD LID

BRACKET BOARD KITCHEN

UNIT COVER CABINET ASSEMBLY

PAN DUCT SIDE(RH)

COUNTER TOP ASSEMBLY

HOOD

DOOR ASSEMBLY(RH)

TOP HINGE(RH)

MECH COVER(RH)

BOTTOM HINGE(LF)

TAMPERATURE CONTROL COVERCOMPRESSOR

SHELF LOUVER

1-2. MST-48-18 EXPLODED VIEW

CONDENSER ASSEMBLY EVAPORATOR DUCT

MECH COVER(LF)

CASTER

2

3

4

5

6

9 78

12

13

16

17

18

22

21

20

15

28

27

26

24

25

10

11

1

19

23

14

29

1 14 27

2 15 28

3 16 29

4 17 30

5 18 PAN DUCT SIDE(LF)

6 19

7 20

8 21

9 22

10 23

11 24

12 25

13 26

◎ Part Name

MECH COVER(LF)

BOARD KITCHEN DOOR ASSEMBLY(LF)

TOP HINGE(RH)

UNIT COVER

COUNTER TOP ASSEMBLY PAN DUCT FRONT

HOOD

LOUVER

TOP HINGE(LF)

BOTTOM HINGE(LF)

BOTTOM HINGE(RH)

CABINET ASSEMBLY EVAP DRAIN GUIDE TAMPERATURE CONTROL COVER

COMPRESSOR EVAPORATOR DUCTEVAP FAN DUCT

CASTER

HOOD LID

BRACKET BOARD KITCHEN

DOOR ASSEMBLY(RH)

MECH COVER(RH)

PAN DUCT MID

HOOD

SHELF EVAPORATOR

CONDENSER ASSEMBLY

PAN DUCT SIDE(RH)

1-3. MST-60-24 EXPLODED VIEW9

3

45

7

8

6

10

11

12

13

1617

18

19

20

21

22

23

24

2927 28

26

1415

25

2

30

1

1 14 27

2 15 28

3 16 MECH COVER(LF) 29

4 17 30

5 HOOD LID(RH) 18 MECH COVER(RH) 31

6 BRACKET BOARD KITCHEN 19 PAN DUCT SIDE(LF) 32

7 BRACKET BOARD 20 PAN DUCT MID

8 HOOD(RH) 21 PAN DUCT SIDE(RH)

9 COUNTER TOP ASSEMBLY 22

10 HOOD(LF) 23

11 24

12 25

13 26

EVAPORATOR FAN DUCT BOTTOM HINGE(LF)

HOOD LID(LF) DOOR ASSEMBLY(LF)

TOP HINGE(LF)

CASTER

LOUVER DOOR ASSEMBLY(MID)

1-4.MST-72-30 EXPLODED VIEW

TAMPERATURE CONTROL COVER

EVAPORATOR DUCT

CONDENSER ASSEMBLY

EVAPORATOR TOP HINGE(RH)

BOTTOM HINGE(RH)

◎ Part Name

SHELF EVAP DRIAN GUIDE DOOR ASSEMBLY(RH)

COMPRESSOR

PAN DUCT FRONT

UNIT COVER

CABINET ASSEMBLY

1

3

4

17

8

9

10

6

12

13

20

21

22

23

24

25

26

27

29

28

3130

2

1419

7

5

18

16

15

11

32

2-2. MST-60-24 / MST-72-30

2. WIRING DIAGRAMS 2-1. MST-28-12 / MST-48-18

SK1A1C-L2W M609700100 1/3HP 115V 60Hz

CAE4456Y M729700100 1/2HP 115V 60Hz

PART NO.~

~

~

~

IS-4420DWSN-2A

IS-4420DWSN-2A INDUCTION

2P

2P

2P

2P

115v60Hz

MST-28-12 GSR SO68 E03 03 783RHBZZ-52

3963328120

3963328120

3963328120

INPUT

115v60Hz

1/4HPMST-48-18

CAPACITY

~

DAEWOO

IS-4420DWSN-2A

IS-4420DWSN-2A

BLADE

~

BLADE

SAMSUNGCSIR 115V 60Hz

MAKERTYPE OF

1.COMPRESSOR

M729700100

~

MODEL PART NAME

M369700100

3.MAIN COMPONENTS

SUNGSHINZYTEL4

SHADEDPOLE

INDUCTIONM729900200

SHADED POLE AL 5 SUNGSHIN

3ARR12 MST16AGZ-3240D5AP

TYPE

250V/12uF

~

MST-60-24115V 60Hz

HBL-27YE-1MST-28-12

(NUMBER)TYPE NO

30283L0100

DAI-6202DEUA

K55Q-5607,16A RANCO

MST-48-18,MST-60-24,MST-72-30MST-28-12

115v60Hz

INPUT

MST-72-30

PART NAME POLE

5.EVAPORATOR FAN MOTOR

MODEL

3.COMPRESSOR CAPACITOR

PART NO.

RUNNING230V/10uF

~~ ~

MAKERRATINGPART NO.PART NAME

MST-72-30

CSIR

MAKER

3ARR12

1/2HP

MST-48-18

MST16AGZ-3240D5AP

MODEL RELAY OVERLOAD

TECUMSHEMST-60-24

115V 60Hz TECUMSHE

SAMSUNG ~

2.COMPRESSOR RELAY ,OVERLOADNOTE

J531Q34E220M3503 795TFBZZ-53

MST-72-30 ~

MST-60-24 ~

CAE4456Y

INPUTHORSE

160V/315uF

~

~

DAEWOO ~

~

MAKER

MODELMST-28-12

MST-60-24~

MAKER

~

~

DAI-6202DEUA

3963328120

PART NO.

MST-48-18 DAI-6202DEUA

DAI-6202DEUA

160V/315uF ~

MODELMST-28-12

THERMOSTAT

TECUMSHE

~ ~

MST-72-30

PART NAME

MST-48-18

6.THERMOSTAT

MST-28-12115v60Hz

MST-72-30MST-60-24

STARTING PART NO.

PART NO.

4.CONDENSER FAN MOTOR

NOTE200V/100uF ~

MST-48-18 125V/125uF ~

CSIR

CSIR TECUMSHE

4.TEMPERATURE CONTROL INSTRUCTION

- Factory setting is at "NORMAL" Settings can be changed by Dial Knob.

- Temperature can be controlled by the user.

◎ Indicates temperature levelsetting.

28 48 60 72

1

1 1

DOOR ASSEMBLY (M) 1

1

DOOR ASSEMBLY (R) 1

DOOR ASSEMBLY (R) 1 1

2 4 4 6

1

DOOR GASKET 2

DOOR GASKET 2 3

TOP HINGE ( R ) 1 1 1 2

TOP HINGE ( L ) 1 1 1

TOP HINGE SPACER 1 2 2 3

1 1 1 2

1 1 1

1 2 2 3

1

1

1

1

2 2 2 2

2 2 2 2

3. COMPRESSOR COMPAR1

1

1 1

1

1

1

1

1

1

1

1

1

2 2 2 3

1 1 1 1

12 18 24 30

BRACKET MOTOR 30220T0300 SUS304

FAN COOLING BLADE

SUCTION PIPE(A) M724400100 CU

COMPRESSOR

COMPRESSOR

COMPRESSOR

M369700100

Remark

M720700100DOOR BUSHING

3011802210 ZYTEL

COUNTER TOP ASSEMBLY

M604400200

CASTER M726500100

M609700100

CU

GI

SUCTION PIPE(A)

SUCTION PIPE(A)

SUCTION PIPE(A)

M270300100COMP BASE

SUCTION PIPE(B)

M724400200SUCTION PIPE(B)

CU

M274400100 CU

M604400800

CU

SUCTION PIPE(B)

M726500200

M275700200

M272300100

BOTTOM HINGE (U)(R)

BOTTOM HINGE (U)(L)

SPRING BAR

2. COUNTER TOP

SUS304,SM45C

WM71700200DOOR ASSEMBLY (L)

DOOR ASSEMBLY (R)

30229M0400

M725000100

M722900200

SUS304,SM45C

30211M0100PAN

WM71700100

WM20000900

DOOR GASKET

M604400400

30229M0300

PVC

PA-66

Part Code

1. DOOR

Model

WM61700200

DescriptionPart Name

COUNTER TOP ASSEMBLY

COUNTER TOP ASSEMBLY

COUNTER TOP ASSEMBLY

CASTER

DOOR ASSEMBLY (L)

M602300100

M722300100

M722900100

M485700200

D605700200

D725700200

WM71700300

WM61700100

M604400900

5. PARTS LIST

CU

PC

SUCTION PIPE(B)

M729700100

M364400200

CU

Model28 48 60 72

1

1

1

1 1 1 2

1 1 1 1

1

1

1 1 1

DRAIN PIPE 1

DRAIN PIPE 1 1

CONDENSER MOTOR BRACK 1 1 1 2

1 1 1 2

Model28 48 60 72

1

PAN SUPPORT ASS'Y 1

PAN SUPPORT ASS'Y 1

PAN SUPPORT ASS'Y 1

EVAP FAN MOTOR 2 2 2 3

1

KITCHEN BOARD 1

KITCHEN BOARD 1

KITCHEN BOARD 1

PAN DUCT MID 1

PAN DUCT MID 1 1

1

1

1

1 1

1

1

1 1

1

1

1

SUS304-2B

SUS304-2B

SUS304-2B

SUS304-2BPAN DUCT MID

PAN DUCT SIDE(L)

PAN DUCT FRONT

PAN DUCT FRONT

PAN DUCT SIDE(R)

PAN DUCT SIDE(R)

PAN DUCT SIDE(L)

PAN DUCT SIDE(L)

PAN DUCT SIDE(R)

PAN DUCT FRONT

M276900400

M726900400

M486900400

M606900600

M486900600

M276900600

SUS304-2B

SUS304-2BM726900100

M486900100

MIPS

4. REFRIGERATION COMPARTMENT

M276900100

M276900500

M720002500

PP

DRAIN PAN

AL

DRAIN PAN M729300100

CONDENSER FAN BLADE M729800100

SUS304-2B

SUS304-2B

SUS304-2B

SUS304-2B

Remark

CONDENSER FAN AIR GUIDE

CONDENSER FAN MOTOR

M721300100

M722500900

POWER CORD

30211A0200

GI

PP

COMP BASE

3963328120

M729900200

M726900500

M279400100

M600001300

M606900500

PAN SUPPORT ASS'Y M270001200

KITCHEN BOARD

Part Name Part Code

M489400100

M609400100

M729400100

Remark

SUS304-2B

Description

COMP BASE

COMP BASE

DescriptionPart CodePart Name

M484400100

M724400800

3020602200

M480001100

IS-4420DWSN-2A

KKP-30(9.85FT)

M600300100

GIM600300300

GI

GI

M720300100

28 48 60 721

1

1

1

1

2

2 2

1

1

4 8 8 12

1 1 2

4 8 8 12

1

1

1

1

1

1

1 1 1 1

1

1

1

1

1

EVAPOVATOR DUCT 1

EVAPOVATOR DUCT 1

EVAPOVATOR DUCT 1

FIXTURE EVAP DUCT BRACKET 2 2 2 2

1

HOOD LID 1

HOOD LID 2 1

HOOD LID 1

MULLION FRAME 1 1 2

MULLION BACK FRAME 1 1 2

MULLION FRAME INSULATION 1 1 2

CONDENSER AS 1

CONDENSER AS 1

CONDENSER AS 1 1

HOOD SHAFT SPACER 2 2 4 4

HOOD HINGE 2 2 4 4

BRACKET BOARD KITCHEN(L) 1 1 1 1

1 1 1 1

3 5 7 9

SUS439-2B

SUS439-2B

STS304

Description

HOOD LID

SUS304

SUS304M722500100

EVAPOVATOR FAN DUCT

EVAPOVATOR DUCT

M486900300

30206P1902BRACKET BOARD KITCHEN(R)

PAN GUIDE

M727800300

SUS304

FIXTURE SHELF CLIP

SHELF MID BRACKET M720600100

PA-66

SUS439-2B

CU,SPG,AL

SUS304

CU,SPG,AL

DRAIN PAN GUIDE(R)

DRAIN PAN GUIDE(L)

M367000100

30220L0900

SHELF STANDARD

EVAPORATOR AS

M725300200

M272500100

M485800100

SHELF

SHELF

SHELF MID

LOUVER

LOUVER

SHELF

M605800100

M725800100

M607800100

M487000200

Part Name Part Code

M277800100

M727800100

M726900600PAN DUCT FRONT

LOUVER

LOUVER

M275800100

EVAPOVATOR FAN DUCT

EVAPORATOR AS

EVAPORATOR AS

THERMOSTAT

SUS439-#4

M727000100

30283L0100

M276900200

M726900200

M606900300

M726900300

WM28900100

WD78900300

M722200400

WD68900300

M276900300

SUS439-2B

SUS439-2B

STS304

STS304

STS304

SUS439-2B

M486900200

M607000100

M606900200

EVAPOVATOR FAN DUCT

GI

GI

CU,SPG,AL

CU,SPG,AL

M272500200

EVAPOVATOR FAN DUCT

250V,16A K55Q -5607

SUS439-2B

EVAPORATOR AS

M722200200

M723300100

M365900100

M605900100

M725900100

M725000400

M724900100

M720601301

SUS304-2B

ModelRemark

M720601000

WM48900300

SUS439-2B

SUS439-2B

` A.Disassemble the evaporator fan duct assembly

B.Disassemble the evaporator duct

6-1. REPLACING DOOR

A. Unscrew the top hinge B. Lift the door

6. REPLACEMENT OF MAIN COMPONENTS

6-2. REFRIGERATION COMPARTMENT PARTS

A.Disassembly the rear grill

C.Remove the tamperature & sensor

B.Disassembly the condesing unit

6-3. COMPRESSOR COMPARTMENT PARTS

6-4. REPLACING THE EVAPORATOR & EVAPORATOR FAN MOTOR

A.Remove the evaporator coil B.Remove the evaporator fan motor