Turboair TUR-28SD User manual

Commercial
Refrigerator & Freezer
Service Manual
Sandwich Salad Unit
Under counter Refrigerator &
Freezer Model No.: TUR-28SD
TUR-48SD
TST-28SD
TST-48SD
TUF-28SD
TUF-48SD

1
TABLE OF CONTENTS
1. FEATURE CHART
1-1. FRONT VIEW / SIDE VIEW (TUR-28SD)
1-2. FRONT VIEW / SIDE VIEW (TUR-48SD)
1-3. FRONT VIEW / SIDE VIEW (TST-28SD)
1-4. FRONT VIEW / SIDE VIEW (TST-48SD)
1-5. FRONT VIEW / SIDE VIEW (TUF-28SD)
1-6. FRONT VIEW / SIDE VIEW (TUF-48SD)
2. WIRING DIAGRAM
2-1. TUR-28SD
2-2. TUR-48SD
2-3. TST-28SD
2-4. TST-48SD
2-5. TUF-28SD
2-6. 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. PART LIST
7. REPLACEMENT OF MAIN COMPONENTS
7-1. REPLACING DOOR
7-2. REFRIGERATION COMPARTMENT PARTS
7-3. COMPRESSOR COMPARTMENT PARTS
7-4. TERMINAL BOX PARTS
7-5. REPLACE DOOR SWITCH AND POWER SWITCH

1-1. FRONT VIEW/SIDE VIEW (TUR-28SD)
2
1. FEATURE CHART
1COUNTER TOP
2THERMOMETER
3LOUVER
4SHELF
5SHELF STANDARD
6CABINET
7CASTOR (with Brake)
8CASTOR
9DOOR
10 DOOR GASKET
11 LINER
12 SHELF CLIP
13 EVAPORATOR FAN
MOTOR
14 EVAPORATOR COIL
15 EVAPORATOR DRAIN PAN
16 DRAIN HOSE
17 SUCTION LINE
18 COMPRESSOR
19 REAR GRILL
20 DRAIN PAN HOUSING
21 DRAIN PAN
22 DOOR HINGE BOTTOM
23 DOOR HINGE TOP
FRONT VIEW
6
7
5
4 32 1 0 9
q w e
s a p
d
r
t
i
8
o
u
y
SIDE VIEW

1-2. FRONT VIEW/SIDE VIEW (TUR-48SD)
FRONT VIEW
1COUNTER TOP
2DOOR
3DOOR HANDLE
4SUPPORTER MIDDLE (A)
5SUPPORTER MIDDLE (B)
6LOUVER
7SHELF (R)
8SHELF STANDARD
9CABINET
10 CASTOR (with Brake)
11 CASTOR
12 LINER
13 DOOR GASKET
14 SHELF CLIP
15 DOOR HINGE TOP
16 EVAPORATOR FAN
MOTOR
17 EVAPORATOR COIL
18 EVAPORATOR DRAIN PAN
19 DRAIN HOSE
20 SHELF STANDARD
RETAINER
21 SUCTION LINE
22 COMPRESSOR
23 REAR GRILL
24 DRAIN PAN HOUSING
25 DRAIN PAN
26 DOOR HINGE BOTTOM
FEATURE CHART
3
1
0
2 3 45 6 7 8
9
e w r
h g f
y
u
i
po
d
q
sa
t
SIDE VIEW

4
FEATURE CHART
1-3. FRONT VIEW/SIDE VIEW (TST-28SD)
FRONT VIEW
1COUNTER TOP
2THERMOMETER
3LOUVER
4SHELF
5SHELF STANDARD
6CABINET
7CASTOR (with Brake)
8DOOR
9DOOR GASKET
10 LINER
11 SHELF CLIP
12 EVAPORATOR FAN
MOTOR
13 EVAPORATOR COIL
14 EVAPORATOR DRAIN PAN
15 DRAIN HOSE
16 SUCTION LINE
17 COMPRESSOR
18 REAR GRILL
19 DRAIN PAN HOUSING
20 DRAIN PAN
21 DOOR HINGE BOTTOM
22 DOOR HINGE TOP
23 HOOD LID
24 PAN SUPPORTER
25 HOOD
26 PAN DUCT
27 PAN
28 PAN SUPPORT BAR
29 CASTOR
6
5
4 32 1
9 8
7
0 kf
pa o l
d
g
sw
e
q
h
j
t
y
u
r
i
SIDE VIEW

5
FEATURE CHART
1-4. FRONT VIEW/SIDE VIEW (TST-48SD)
FRONT VIEW
1COUNTER TOP
2DOOR
3DOOR HANDLE
4SUPPORTER MIDDLE (A)
5SUPPORTER MIDDLE (B)
6LOUVER
7SHELF (RIGHT)
8SHELF STANDARD
9CABINET
10 CASTOR (with Brake)
11 LINER
12 DOOR GASKET
13 SHELF CLIP
14 DOOR HINGE TOP
15 EVAPORATOR FAN
MOTOR
16 EVAPORATOR COIL
17 EVAPORATOR DRAIN PAN
18 DRAIN HOSE
19 SHELF STANDARD
RETAINER
20 SUCTION LINE
21 COMPRESSOR
22 REAR GRILL
23 DRAIN PAN HOUSING
24 DRAIN PAN
25 DOOR HINGE BOTTOM
26 HOOD LID
27 PAN SUPPORTER
28 HOOD
29 PAN DUCT
30 PAN
31 PAN SUPPORT BAR
32 CASTOR
1 2 3 6 7 8
9
45
0
q
w
g f d
j z
e
h
k
rt
y
a
s
x
i
o
p
u
l
SIDE VIEW

6
FEATURE CHART
1-5. FRONT VIEW/SIDE VIEW (TUF-28SD)
1COUNTER TOP
2THERMOMETER
3LOUVER
4SHELF
5SHELF STANDARD
6CABINET
7CASTOR (with Brake)
8DOOR
9DOOR GASKET
10 LINER
11 LAMP
12 SHELF CLIP
13 EVAPORATOR FAN
MOTOR
14 EVAPORATOR COIL
15 EVAPORATOR DRAIN PAN
16 DRAIN HOSE
17 SUCTION LINE
18 COMPRESSOR
19 REAR GRILL
20 DRAIN PAN HOUSING
21 DRAIN PAN
22 DOOR HINGE BOTTOM
23 DOOR HINGE TOP
24 DOOR SWITCH
25 POWER SWITCH
26 CASTOR
FRONT VIEW
6
7
5
4 32 1 8 9
0 q w e
s a p
d
r
fg
t
i
o
h
u
y
SIDE VIEW

7
FEATURE CHART
1-6. FRONT VIEW/SIDE VIEW (TUF-48SD)
FRONT VIEW
1COUNTER TOP
2DOOR
3DOOR HANDLE
4SUPPORTER MIDDLE (A)
5SUPPORTER MIDDLE (B)
6LOUVER
7SHELF (R)
8SHELF STANDARD
9CABINET
10 CASTOR (with Brake)
11 CASTOR
12 LAMP
13 LINER
14 DOOR GASKET
15 SHELF CLIP
16 DOOR HINGE TOP
17 EVAPORATOR FAN
MOTOR
18 EVAPORATOR COIL
19 EVAPORATOR DRAIN PAN
20 DRAIN HOSE
21 SHELF STANDARD
RETAINER
22 SUCTION LINE
23 COMPRESSOR
24 REAR GRILL
25 DRAIN PAN HOUSING
26 DRAIN PAN
27 DOOR HINGE BOTTOM
28 DOOR SWITCH
29 POWER SWITCH
1
0
2 3 45 6 7 8
9
w te
r
j h g
u
i
op
a
d
f
q
s
y
kl
SIDE VIEW

2. WIRING DIAGRAMS
8
2-1. TUR-28SD
2-2. TUR-48SD

9
WIRING DIAGRAMS
2-4. TST-48SD
2-3. TST-28SD
BK
BK
BK
WHWH WH
WHWHWH
R/C S/C PK
1
3
65
WH
RD
RD BK
WH
WH
EVA. FAN MOTOREVA. FAN MOTOR
F/M
BK
WH
F/MF/M
COND. FAN MOTOR
PTC-RELAY
YE
AM
2
THERMOSTAT
GN
RD
BK
BK
GN
RD
RD
OLP
GN
POWER CORD
COMPRESSOR
BK
BK BK BK
WH WHWH WH WH
RD
RDBK BK
WH
WH
WH
EVA. FAN MOTOR
EVA. FAN MOTOR
HEATER CABINET
F/MF/MF/M
COND. FAN MOTOR
C-RELAY
AM
12
THERMOSTAT
GN
RD
BK
BK
GN
RD
RD
OLP
GN
POWER CORD
COMPRESSOR

10
WIRING DIAGRAMS
WIRING DIAGRAM
2-5. TUF-28SD
WIRING DIAGRAM
2-6. TUF-48SD

11
3. PART DETAILS
3-1. COMPRESSOR COMPARTMENT
CONDENSING UNIT ASSEMBLY
CONDENSER FAN MOTOR ASSEMBLY
TST-28SD,48SD TUF-28SD
CONDENSING UNIT ASSEMBLY
TUF-48SD
Defrost Timer (TUF-28SD,48SD)
Start Capacitor (TUF-28SD)
Run Capacitor (TUF-48SD)

12
3. PART DETAILS
3-2. DOOR
DOOR GASKET
Door Assembly
Door Gasket
3-3. REFRIGERATION COMPARTMENT
LOUVER
DUCT
TST-28SD,48SD TUR-28SD,48SD
TUF-28SD,48SD
Pan Duct
Temperature Control
(Thermostat)
Duct Duct
Louver Louver Temperature Control
(Thermostat)

13
PART DETAILS
EVAPORATOR COIL
EVAPORATOR COIL FAN MOTOR
FREEZER EVAPORATOR COIL
(CCW) (CCW)
Fan Motor and Blade
TUF-28SD,48SD
TST-28SD,48SD TUF-28SD,48SD
Defrost Sensor
Evaporator Thermal
Fuse (BIMETAL)
Defrost Heater
Evaporator Drain
Pan Heater

14
PART DETAILS
THERMOSTAT
TST-28SD,48SD
TUF-28SD,48SD TUR-28SD,48SD

15
4. MAIN COMPONENTS
1. COMPRESSOR
MODEL PART NAME PART NO. HORSE CAPACITY TYPE OF INPUT MAKER
POWER MOTOR
TUR-28SD HCH23YE-1 3957223G10 1/4 HP 773 BTU/h CSIR - DAEWOO
TUR-48SD (195 Kcal/h)
TST-28SD HBL27YE-1 3952127G10 1/3 HP 896 BTU/h CSR - DAEWOO
TUF-28SD (226 Kcal/h)
TST-48SD SK6A1C-H2Y 3020014540 1/3 HP 4,288 BTU/h RSIR - SAMSUNG
(1,080 Kcal/h)
TUF-48SD AEZ2415Z 30200N4400 1/3 HP 1,459 BTU/h CSIR - TECUMSEH
(368 Kcal/h) (FRANCE)
2. COMPRESSOR RELAY, OVERLOAD
MODEL RELAY PART NO. OVERLOAD PART NO. MAKER NOTE
TUR-28SD C-090C 3817910400 4TM-783RHB 3817908600 DAEWOO
TUR-48
TST-28 S068 3017906900 4TM-783SHB 3817910600 DAEWOO
TUF-28
TST-48 MTRP0052-02 - 4TM-811XHB - SAMSUNG
TUF-48
3ARR12KP(+)479 MRP24A1K - TECUMSEH(FRANCE) Comp.Assembly
3. COMPRESSOR CAPACITOR
MODEL STARTING PART NO. RUNNING PART NO. MAKER NOTE
TUR-28SD 200V 100µF 401RD35050 - - DAEWOO Comp.Assembly
TUR-48SD
TST-28SD 200V 100µF 401RD35050 230V 10µF 100EL15130 DAEWOO
TUF-28SD
TST-48SD - - - - -
TUF-48SD 160V 250µF - - - TECUMSEH(FRANCE) Comp.Assembly
MODEL PART NAME PART NO. POLE INPUT TYPE BLADE MAKER
(NUMBER)
TUR-28SD
TUR-48SD
TST-28SD IS-4420DWSN-2A 3963328120 4P 47W Shaded Pole AL SUNGSHIN
TST-48SD Induction 5
TUF-28SD
TUF-48SD
4. CONDENSER FAN MOTOR

16
MAIN COMPONENTS
6. DEFROST HEATER
MODEL PART NAME PART NO. SPEC. MAKER
TUF-28SD SHEATHED HEATER 30228M2002 300W SANGDO
TUF-48SD 30228M2102 450W
9. TEMPERATURE CONTROL (THERMOSTAT)
MODEL PART NAME PART NO. SPEC. MAKER
TUR-28SD GNF-105D-01A 30283M0300 NORMAL SHINHAN
TUR-48SD
TST-28SD GNF-105D-04A 30283M0400 NORMAL SHINHAN
TST-48SD GNF-105D-01A 30283M0500 NORMAL SHINHAN
TUF-28SD GNF-106D-06A 30283D0700 NORMAL SHINHAN
TUF-48SD
7. LAMP BULB
MODEL PART NAME PART NO.
NUMBER WATTS CURRENT
TYPE MAKER
TUF-28SD 120V/60Hz 302236L0100 1 25W - - -
TUF-48SD
8. POWER SWITCH (ROCKER SWITCH)
MODEL TYPE PART NO. RATING MAKER
TUF-28SD POWER SWITCH 30281A0600 125V/6A DAESUNG
TUF-48SD
10. DEFROST TIMER
MODEL TYPE PART NO. DEFROST CYCLE MAKER
TUF-28SD SCD
TUF-48SD TMDE807UB9 30281M0210 8 HOURS
11. DEFROST SENSOR
MODEL TYPE PART NO. DEFROST CYCLE MAKER
TUF-28SD PST3A 3018121300 OPEN 48.2 ± 6˚F PACIFIC
TUF-48SD
MODEL PART NAME PART NO. POLE INPUT TYPE BLADE MAKER
(NUMBER)
TUR-28SD
TUR-48SD
TST-28SD DAI6152DEB 3963228120 2P Shaded Pole NA-66 DAEYOUNG
TST-48SD Induction 4
TUF-28SD
5. EVAPORATOR FAN MOTOR

17
5. TEMPERATURE CONTROL INSTRUCTIONS
5-1. HOW TO USE THE TEMPERATURE CONTROL
COLD
OFF NORMAL
COOL
COLD
OFF
NORMAL
COOL
COLD
OFF
NORMAL
COOL
COLD
OFF
NORMAL
COOL
- Indicates temperature
level setting.
- Temperature can be controlled by the user.
- Factory setting is at ‘NORMAL’. Settings can be
changed by Dial Knob.
TUR-48SD, TUF-48SD
TST-28SD TST-48SD
TEMPERATURE CONTROL TEMPERATURE CONTROL
TEMPERATURE CONTROL TEMPERATURE CONTROL
TUR-28SD, TUF-28SD

CONTROLLER INSTRUCTIONS
18
5-2. FUNCTION TABLE
No Function Controlled Description
Part
1-1 Temperature Compressor
Control
Evap. Fan Motor
(GNF-105D-01A)
Cond. Fan Motor
Model: TUR-28SD
TUR-48SD
TST-48SD
1-2 Temperature Compressor
Control Evap. Fan Motor
(GNF-105D-04A) Cond. Fan Motor
Model: TST-28SD
1-3 Temperature Compressor
Control
Cond. Fan Motor
(GNF-106D-06A)
Model:
TUF-28SD,48SD
2 Defrost Compressor
Function
Evap. Fan Motor
(Off Cycle) Cond. Fan Motor
Model: TUR-28SD
TUR-48SD
TST-28SD
TST-48SD
3 Defrost Compressor
Function Evap. Fan Motor
Model: TUF-28SD Cond. Fan Motor
TUF-48SD
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.
No. Cool Normal Cold
Cut in 41 38.3 36.5
Cut Out 19.4 15.8 13.1
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.
No. Cool Normal Cold
Cut in 41 38.3 36.5
Cut Out 16.7 13.1 9.5
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.
No. Cool Normal Cold
Cut in 3˚F -1˚F -3˚F
Cut Out -9.5˚F -13˚F -15˚F
3. When the door opened, the evaporator fan motor stop and lamp turn on.
1. Defrost function is not in this model.
2. When the compressor is turned off, the
‘natural defrost function’is started.
■Natural defrost step
Comp EVA.-fan CON-fan
Off On Off
1. If it reaches defrost cycle time, the defrost heater comes on.
2. Defrost function terminates when D-sensor’s temperature gets to above 48.2˚F
(9˚C).
3. Defrost step
Defrost Pause
Comp Off Off
F-fan Off Off
C-fan Off Off
Heater On Off
Max time - 9 min

19
6. PARTS LIST FOR SALAD & UNDERCOUNTER MODEL
Cabinet
CABINET ASSEMBLY 30200M0300
CABINET ASSEMBLY 30203M0100
CABINET ASSEMBLY 30200M3200
CABINET ASSEMBLY 30200M3300
CASTOR 30265L0300 WITH BRAKE
CASTOR 30265L0400
Door
DOOR ASSEMBLY 30200M1100 STS+URT
DOOR ASSEMBLY(LEFT) 30200M1000 STS+URT
DOOR ASSEMBLY(RIGHT) 30200M1100 STS+URT
DOOR GASKET 30223M0100 PVC-S
DOOR GASKET 30223M0200 PVC-S
BUSHING BOTTOM 30207H1000 NA-66
DOOR HINGE TOP ASSEMBLY(L) 30229M0100 STS304
DOOR HINGE TOP ASSEMBLY(R) 30229M0200 STS304
DOOR HINGE BOTTOM ASSEMBLY(L) 30229M0300 STS304
DOOR HINGE BOTTOM ASSEMBLY(R) 30229M0400 STS304
DOOR HINGE SPRING 30251M0100 HSW-3 / ø0.102”(Diameter)
COMPRESSOR COMPARTMENT
CONDENSER COIL 30200M7200 CU
CONDENSER COIL 30200M7300 CU
CONDENSER COIL 30200M3100 CU
SUCTION LINE 30200M7000 CU
SUCTION LINE 30200M7100 CU
SUCTION LINE 30266M1200 CU
SUCTION LINE 30244M3001 CU
SUCTION LINE 30224M3101 CU
COMPRESSOR BASE 30203M3302
COMPRESSOR BASE 30203M1800
COMPRESSOR BASE 30203M1010 SBHG / 0.063”(Thickness)
COMPRESSOR BASE 30203M1610 SBHG / 0.063”(Thickness)
COMPRESSOR BASE 30203M1710 SBHG / 0.063”(Thickness)
COMPRESSOR RUN CAPACITOR 400EL15130 230V/10µF
11
11
11
222222
222222
111
111
111
222
111
242424
111
111111
111
111111
121212
111
111
111
11
1
11
1
11
11
Part name Part Code Description Model
TST-28 TST-48 TUR-28 TUR-48 TUF-28 TUF-48