Page 1
Commercial
Refrigerator
Service Manual
Undercounter Freezer
Model No.: TUF-28SD
TUF-48SD
Page 2
TABLE OF CONTENTS
1.FEATURE CHART
1-1.FRONT VIEW
1-2.SIDE VIEW
2.WIRING DIAGRAMS
2-1.TUF-28SD
2-2.TUF-48SD
3.PART DETAILS
3-1.COMPRESSOR COMPARTMENT
3-2.DOOR
3-3.REFRIGERATION COMPARTMENT
4.MAIN COMPONENTS
5.TEMPERATURE CONTROL INSTRUCTION
5-1.HOW TO USE THE TEMPERATURE CONTROL
5-2.FUNCTION TABLE
6.PARTS LIST
7.REPLACEMENT OF MAIN COMPONENTS
7-1.REPLACING DOOR
7-2.REFRIGERATION COMPARTMENT PARTS
7-3.COMPRESSOR COMPARTMENT PARTS
7-4.REPLACING THE EVAPORATOR & EVAPORATOR FAN MOTOR
7-5.REPLACING THE HEATER
7-6.REPLACING THE DEFROST TIMER
Page 3
1.FEATURE CHART
1-2.SIDE VIEW
TUF-48SD
TUF-28SD
1-1.FRONT VIEW
2
1
4
3
18
17
16
6
1110
8
75
9
1 COUNTER TOP
2 DOOR(L)
3 DOOR HANDLE(L)
4 MULLION
12
13
14
15
5 DOOR SWITCH
6 LOUVER
7 EVAPORATOR DUCT
8 SHELF( R )
9 CABINET ASSEMBLY
10 DOOR GASKET
11 LAMP
12 EVAPORATOR FAN MOTOR
13 EVAPORATOR COIL
14 EVAPORATOR DRAIN
15 CASTOR
16 DOOR BOTTOM HINGE
17 SHELF CLIP
18 TOP HINGE
Page 4
2.WIRING DIAGRAMS
2-1.TUF-28SD
2-2.TUF-48SD
Page 5
3.PART DETAILS
3-1. COMPRESSOR COMPARTMENT
TUF-28SD
TUF-48SD
CONDENSING UNIT ASSEMBLY
3-2. DOOR
DOOR GASKET
Page 6
PART DETAILS
3-3.REFRIGERATION COMPARTMENT
TEMPERATURE CONTROL & EVAPORATOR
EVAPORATOR FAN MOTOR
Page 7
PART DETAILS
THERMOSTAT
Page 8
4.MAIN COMPONENTS
1.COMPRESSOR
MODEL
TUF-48SD
TUF-28SD
2.COMPRESSOR RELAY ,OVERLOAD
MODEL
TUF-48SD ~
TUF-28SD ~
3.COMPRESSOR CAPACITOR
MODEL
TUF-48SD ~
TUF-28SD
PART NAME PART NO. HORSE CAPACITY TYPE OF INPUT MAKER
CAE2420Z G2F5700100
HBL-27YE-1
RELAY PART NO. OVERLOAD PART NO. MAKER
KPT 483 3ARR12 07 07 ~ MST16AHN-3240 ~ SAMSUNG
GSR SO68 BO8 08 ~ 4TM795TFBZZ-52 ~ DAIWOO
STARTING PART NO. RUNNING PART NO. MAKER
~ ~ ~ ~ ~
200V/100uF ~ 230V/10uF ~ ~
M369700100
~ ~ CSR ~ ~
1/4HP ~ CSR ~ DAEWOO
NOTE
NOTE
~
4.CONDENSER FAN MOTOR
MODEL
TUF-48SD
TUF-28SD
PART NAME PART NO. POLE INPUT TYPE BLADE MAKER
IS-4420DWSN-2A
IS-4420DWSN-2A
M729900100
M729900100
5.EVAPORATOR FAN MOTOR
MODEL PART NAME PART NO. POLE
TUF-48SD
TUF-28SD
6.SWITCH
DAI-615DEUA 2P
DAI-615DEUA 2P
PART NAME RATING MAKER
THERMOSTAT UF48300200
DAI-6152DEUA
4P
PART NO.
47W
INPUT TYPE MAKER
225W
225W
TUF-28SD,TUF-48SD
SHADED POLE
INDUCTION
SHADED POLE
INDUCTION
GNF-106D-06A-2
AL 5 SAMSUNG
BLADE
(NUMBER)
NA-66
4
DEYOUNG
RANCO
Page 9
5.TEMPERATURE CONTROL INSTRUCTION
5-1.HOW TO USE THE TEMPERATURE CONTROL
5-2.FUNCTION TABLE
No Function Controlled
Tempressor Compressor
Control Evap.Fan motor
Cond.Fan Motor
1
Model:
TUF-28SD
TUF-48SD
(GNF-106D-06A)
Description
1.The temperature can be changed by turning the dial knob
2.Compressor is automatically turned on and off by thermostat.
■ Cut in and out temperature chart. °F
NO. Cool Normal Cold
Cut in 4.1 5.9
Cut Out -8.5 -6.7
±2.7
±2.7
9.5
-3.1
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48
28
6.PARTS LIST FOR UNDERCOUNTER FREEZER
Cabinet
DOOR
Part name Part code Description
CABINET Assembly UF20000100 1
CABINET Assembly UF40000100 1
CASTER M726500100 5INCH MOVING 2 2 SAME AS BEFORE
CASTER M726500200 5INCH MOVING STOPPING 2 2 SAME AS BEFORE
TOP HINGE ( R ) M722900100 STS304,SM45C 1 1
TOP HINGE ( L ) M722900200 STS304,SM45C 1
TOP HINGE SPACER M725000100 ABS 2 1
BOTTOM HINGE (U)(R) 30229M0400 STS304,SM45C 1 1 SAME AS BEFORE
BOTTOM HINGE (U)(L) 30229M0300 STS304,SM45C 1 SAME AS BEFORE
DOOR GASKET M272300100 PVC 1 SAME AS BEFORE
DOOR GASKET M722300100 PVC 2 SAME AS BEFORE
DOOR Assembly (R) M270000900 SUS304-#4 1 SAME AS BEFORE
Model
Remark
DOOR Assembly (R) M720000900 SUS304-#4 1 SAME AS BEFORE
DOOR Assembly (L) M720001100 SUS304-#4 1 SAME AS BEFORE
COMPRESSOR COMPARTMENT
COMPRESSOR M369700100 HBL-27YE-1 (1/4HP) 1 SAME AS BEFORE
COMPRESSOR G2F5700100 CAE2420Z 1
SUCTION PIPE (B)
SUCTION PIPE (B)
SUCTION PIPE (A)
SUCTION PIPE (A)
COMP BASE
COMP BASE
HARNESS CAPACITOR (STARTING) M602700303
HARNESS CAPACITOR (RUNNING) M602700605
CONDENSER FAN MOTOR 3963328120 IS4420DWSN-2A
POWER CORD M721300100 KKP-30(9.85FT) 1 1 SAME AS BEFORE
UF24400101
UF44400100
UF24400201
UF44400200
UF20300100
UF40300100
OD9.52X0.6T L=1550 1
OD9.52X0.6T L=2218 1
OD9.52XT0.6 1
OD9.52XT0.6 1
SBHG0.078"(Thickness) 1
SBHG0.078"(Thickness) 1
1 1
1
1
SAME AS BEFORE
CONDENSER FAN AIR GUIDE M722500900 SBHG0.019"(Thickness)
DRAIN HOSE M273200100 PVC L=270 1 SAME AS BEFORE
DRAIN PAN 30211A0202 PP 1 SAME AS BEFORE
DRAIN PAN M729300100 PP 1
HARNESS RELAY M272700300 1
HARNESS RELAY M602700503 1
DRAIN PIPE M724400500 STS304/ODΦ6.35X0.5T 1 1
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PARTS LIST FOR UNDERCOUNTER FREEZER
CONDENSER CONNETCOR PIPE (A)
CONDENSER CONNETCOR PIPE
CONDENSER CONNETCOR PIPE (B)
CONDENSER MOTOR BRACKET 3020602202
CONDENSER FAN BLADE M729800100
REFRIGERATION COMPARTMENT
EVAP FAN MOTOR M729900200
DRYER FIXTURE M722000500 1 1
LOUVER
LOUVER
SHELF M727800100 STS304 2
SHELF M277800100 STS304 1
FIXTURE SHELF CLIP 30220L0900 PA-66 8 4 SAME AS BEFORE
SHELF MID BRACKET M720600100 SUS304-#4/ 0.039"(Thickness) 1
UF44400300
UF24400300
UF44400400
UF25800100
UF45800100
48 28
ODΦ7.94X0.5T 1
ODΦ7.94X0.5T 1
ODΦ7.94X0.5T 1
SBHG ,0.09(Thickness)
AL 5
DAI-6152DEUA
SUS439-2B/0.023"(Thickness) 1
SUS439-2B/0.023"(Thickness) 1
1 1 SAME AS BEFORE
1 1 SAME AS BEFORE
2 2 SAME AS BEFORE
RemarkPart name Part code Description
SHELF STANDARD M725300200 SUS304/0.039"(Thickness) 8 4
DRAIN PAN GUIDE
DRAIN PAN GUIDE
EVAPORATOR AS
EVAPORATOR AS
EVAPOVATOR FAN DUCT M276900200 STS439-2B/0.023"(Thickness) 1
EVAPOVATOR FAN DUCT M486900200 STS439-2B/0.023"(Thickness) 1
EVAPOVATOR DUCT M276900300 STS439-2B/0.023"(Thickness) 1
EVAPOVATOR DUCT M486900300 STS439-2B/0.023"(Thickness) 1
FIXTURE EVAP DUCT BRACKET M720601000
BRACKET MOTOR 30220T0300 STS304-2B/0.039"(Thickness) 2 2 SAME AS BEFORE
FAN COOLING BLADE 3011802210 ABS 1 1 SAME AS BEFORE
MULLION FRAME M722200100 ABS 1 SAME AS BEFORE
MULLION BACK FRAME M722200200 STS439/0.019"(Thickness) 1 SAME AS BEFORE
MULLION FRAME INSULATION M723300100 F-PS 1 SAME AS BEFORE
THERMOMETER UF48300200
CONDENSER AS
CONDENSER AS
SPACER CUSHION M721500300 RUBBER 4 4
UF22500100
UF42500100
UF27000101
UF47000101
UF25900101
UF45900101
SBHG,T 0.19
SBHG,T 0.19
CU,SPG,AL
CU,SPG,AL
STS304-2b/0.039"(Thickness)
GNF-106D-06A-2
CU,SPG,AL 1
CU,SPG,AL 1
1
1
1
1
2 2 SAME AS BEFORE
1 1 SAME AS BEFORE
PAN 30211A0203 P.P 1 1
HARNESS MAIN UF22700103 1
HARNESS MAIN UF42700103 1
CABINET HARNESS HEATER UF22800100
CABINET HARNESS HEATER UF42800301 45W 1
35W
1
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PARTS LIST FOR UNDERCOUNTER FREEZER
48 28
MULLION HARNESS HEATER
DRAIN GUIDE HEATER
DRAIN GUIDE HEATER
THERMAL FUSE UF47200101
THERMAL FUSE G8F6200500
LAMPE P996300100 40W/120V 1 1
LAMP SOCKET P996400100 PENT/E17A-90/75W/250V 1 1
DOOR SWITCH P995200100 SP201R-7D 2 1 DECO KOREA
LAMP COVER G8F3200202 PVC-H 1 1
UF42800401
UF22800202
UF42800502
21.7W 1
24.5W 1
39.4W 1
PST-3A/8197/N9
PST-3A/X076/N80
1 1
1 1
RemarkPart name Part code Description
Page 13
7.REPLACEMENT OF MAIN COMPONENTS
7-1.REPLACING DOOR
A.Unscrew the top hinge
B.Lift the door
Page 14
REPLACEMENT OF MAIN COMPONENTS
7-2.REFRIGERATION COMPARTMENT PARTS
A.Disassemble the evaporator fan duct assembly
B.Disassemble the evaporator fan motor
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REPLACEMENT OF MAIN COMPONENTS
C.Disassemble the evaporator duck
D.Remove the thermostat & sensor
E.Remove the evaporator coil
Page 16
REPLACEMENT OF MAIN COMPONENTS
7-3.COMPRESSOR COMPARTMENT PARTS
A.Disassemble the rear grill
B.Disassemble the cable tie
Page 17
REPLACEMENT OF MAIN COMPONENTS
C.Disassemble the condesing unit
D.Disassemble the condenser fan motor
Unscrew two screws as above Pull out the condensing unit
Page 18
REPLACEMENT OF MAIN COMPONENTS
7-4.REPLACING THE EVAPORATOR & EVAPORATOR FAN MOTOR.
A.Unscrew the screws located on left and right side of the louver
and the eva fan duct.
B.Unscrew the screws located on left and right side of the eva duct.
Page 19
REPLACEMENT OF MAIN COMPONENTS
C.And then, you can replace fan motor, evaporator coil and thermo sensor.
Page 20
REPLACEMENT OF MAIN COMPONENTS
7-5.REPLACING THE HEATER.
CABINET HEATER
DEFROST HEATER
EVA DRAIN GUIDE HEATER
Page 21
REPLACEMENT OF MAIN COMPONENTS
EVA DRAIN HOSE HEATER
MULLION HEATER
Page 22
REPLACEMENT OF MAIN COMPONENTS
7-6.REPLACING THE DEFROST TIMER.
Page 23
REPLACEMENT OF MAIN COMPONENTS
7-7.REPLACING THE LAMP ASSEMBLY.
Page 24
REPLACEMENT OF MAIN COMPONENTS
7-8.REPLACING THE DOOR SWITCH.
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