Turbo Air MSF-23NM Service Manual Download Page 9

5. ELECTRONIC CONTROL INSTRUCTIONS

17

5-1. FREEZER CONTROL

5-1-1. How to use the display PCB  panel

5-1-2. Manual Defrost Function

- 88 LED
- It indicates setting temperature,

except defrost function 

-Door Open LED

-Temperature can be controlled by the user.
-Factory  setting is at level "2 

". Setting can

be changed by pressing up/down button.

Press temperature setting UP/DOWN key for 2 

s

econds at

the same time, manual defrost mode will start.
If you press UP/DOWN key for 2 seconds again on defrosting
manual defrost will be cancelled and it will revert to nomal
mode after 10 minutes of pause(Display panel indicates “DF”
for pause period)

25 W

R7494-010

16

MAIN COMPONENTS

4-6. CONDENSER FAN MOTOR

MODEL

Voltage

Motor Model

Part code

115 V / 60 Hz

SR-043

R7423-020

4-8. LAMP

MODEL

Voltage

Spec

Part code

115 V / 60 Hz

4-9. MAIN PCB

MODEL

Voltage

Part code

115 V / 60 Hz

R7103-260 

R7103-250

R7103-260 

4-10. DISPLAY PCB

MODEL

Voltage

Part code

115 V / 60 Hz

R7113-190

4-7. DEFROST HEATER

MODEL

Voltage

Spec

Part code

115 V / 60 Hz

445 W

R7303-400

600 W

R7303-410

MSR-23NM

MSR-49NM

MSF-23NM

MSF-49NM

MSR-23G-1

MSR-49G-2

MSR-23NM

MSR-49NM

MSF-23NM

MSF-49NM

MSR-23G-1

MSR-49G-2

MSR-23NM

MSR-49NM

MSF-23NM

MSF-49NM

MSR-23G-1

MSR-49G-2

MSR-23NM

MSR-49NM

MSF-23NM

MSF-49NM

MSR-23G-1

MSR-49G-2

FLUORESCENT 32W/865RS

R7494-150

MSR-23NM

MSR-49NM

MSF-23NM

MSF-49NM

MSR-23G-1

MSR-49G-2

4-11. BALLAST

MODEL

Voltage

Spce

Part code

120V / 60Hz

32W

R7553-011

MSR-23G-1

MSR-49G-2

Summary of Contents for MSF-23NM

Page 1: ...Commercial Refrigerator Freezer Service Manual Solid Door Model No MSR 23NM MSR 49NM MSF 23NM MSF 49NM Glass Door Model No MSR 23G 1 MSR 49G 2 ...

Page 2: ... 3 DOOR 3 4 COOLING COMPARTMENT 4 MAIN COMPONENTS 4 1 COMPRESSOR 4 2 POWER RELAY COMP RELAY 4 3 CONDENSER DRYER 4 4 COMPRESSOR CAPACITOR 4 5 EVAPORATOR FAN MOTOR 4 6 CONDENSER FAN MOTOR 4 7 EVAPORATOR DEFROST HEATER 4 8 LAMP BULB 4 9 MAIN PCB 4 10 DISPLAY PCB 4 11 BALLAST 5 ELECTRONIC CONTROL INSTRUCTIONS 5 1 FREEZER CONTROL 5 1 1 HOW TO USE THE DISPLAY PCB PANEL 5 1 2 MANUAL DEFROST 5 1 3 FUNCTIO...

Page 3: ... CHART 4 1 2 SIDE VIEW MSR 49NM TOP PANEL POWER RELAY MAIN PCB DOOR EVAPORATOR FAN MOTOR SENSOR FREEZER C SENSOR DEFROST SENSOR REFRIGERATOR C SENSOR REFRIGERATOR T SENSOR LAMP BULB LAMP SHIELD LAMP SOCKET EVAPORATOR DEFROST HEATER EVAPORATOR DRAIN HOSE EVAPORATOR DRAIN PAN HEATER EVAPORATOR FAN MOTOR GUARD SHELF SHELF CLIPS SHELF STANDARD BOTTOM GRILLE COMPRESSOR CAPACITOR COVER COMPRESSOR CAPACI...

Page 4: ...URE CHART 1 4 SIDE VIEW MSR 49G 2 TOP PANEL EVAPORATOR FAN BLADE EVAPORATOR FAN MOTOR EVAPORATOR COIL EVAPORATOR TOP DRAIN HOSE EVAPORATOR DRAIN FAN LAMP SOCKET FLUORESCENT LAMP SHELF STANDARD DOOR HANDLE DOOR FRAME FLUORESCENT LAMP ASSEMBLY BOTTOM GRILLE CASTER ...

Page 5: ...WIRING DIAGRAM 9 MSF 49NM MSF 23NM 2 2 FREEZER WIRING DIAGRAM 8 MSR 23G 1 MSR 49G 2 ...

Page 6: ...mp Switch Lamp Switch Lamp Switch Lamp Switch Lamp Switch Lamp Switch Lamp Switch Lamp Switch Lamp Switch Lamp Switch Lamp Switch Lamp Switch Lamp Switch Lamp Switch Lamp Switch Lamp Switch Lamp Switch Lamp Switch Lamp Switch Lamp Switch POWER SWITCH POWER SWITCH POWER SWITCH POWER SWITCH POWER SWITCH POWER SWITCH POWER SWITCH POWER SWITCH POWER SWITCH POWER SWITCH POWER SWITCH POWER SWITCH POWER ...

Page 7: ...EEZER C SENSOR FREEZER C SENSOR LAMP LAMP LAMP LAMP LAMP LAMP LAMP LAMP LAMP LAMP LAMP LAMP LAMP LAMP EVAPORATOR FAN MOTOR EVAPORATOR FAN MOTOR EVAPORATOR FAN MOTOR EVAPORATOR FAN MOTOR EVAPORATOR FAN MOTOR EVAPORATOR FAN MOTOR EVAPORATOR FAN MOTOR EVAPORATOR FAN MOTOR EVAPORATOR FAN MOTOR EVAPORATOR FAN MOTOR EVAPORATOR FAN MOTOR EVAPORATOR FAN MOTOR EVAPORATOR FAN MOTOR EVAPORATOR FAN MOTOR EVAP...

Page 8: ...Hz G7L 1A TUB R7253 040 4 5 EVAPORATOR FAN MOTOR MODEL Voltage Motor Model Part code 115 V 60 Hz IS 4420DADY R7423 031 4 3 DRYER MODEL Refrigerant Spec Part code R 134a 36GR R2183 032 R 404a 36GR R2183 043 R 134a 36GR R2183 032 4 4 CAPACITOR MSR 23NM MSR 49NM MSF 23NM MSF 49NM MSR 23G 1 MSR 49G 2 MSR 23NM MSR 49NM MSF 23NM MSF 49NM MSR 23G 1 MSR 49G 2 MSR 23NM MSR 49NM MSF 23NM MSF 49NM MSR 23G 1 ...

Page 9: ...e period 25 W R7494 010 16 MAIN COMPONENTS 4 6 CONDENSER FAN MOTOR MODEL Voltage Motor Model Part code 115 V 60 Hz SR 043 R7423 020 4 8 LAMP MODEL Voltage Spec Part code 115 V 60 Hz 4 9 MAIN PCB MODEL Voltage Part code 115 V 60 Hz R7103 260 R7103 250 R7103 260 4 10 DISPLAY PCB MODEL Voltage Part code 115 V 60 Hz R7113 190 4 7 DEFROST HEATER MODEL Voltage Spec Part code 115 V 60 Hz 445 W R7303 400 ...

Page 10: ...r LED 1 88 LED displays inside temperture 2 Begin to run immediately on the higher than 50 and begin to run after 5 minutes pause on the lower than 50 1 The temperature can be changed by pushing up down buttons 2 88 LED displays inside temperture 3 Buzzer buzzes 1time whenever a button is pressed 4 Compressor automatically turns on and off by C sensor Except error mode 5 Comp on off temperature Se...

Page 11: ...l operation Time control Comp ON 10 MINUTES Comp OFF 20 MINUTES short circuit wire disconnection short circuit wire disconnection short circuit wire disconnection C sensor C sensor T sensor Content Perception Method Refrigeration state 5 2 2 FUNCTION TABLE ELECTRONIC CONTROL INSTRUCTION 20 5 2 REFRIGERATOR CONTROL 5 2 1 HOW TO USE THE DISPLAY PCB PANEL 88 LED It indicates setting temperature excep...

Page 12: ...RELAY POWER RELAY POWER RELAY POWER RELAY POWER RELAY POWER RELAY POWER RELAY POWER RELAY POWER RELAY POWER RELAY POWER RELAY POWER RELAY POWER RELAY POWER RELAY MAIN PCB MAIN PCB MAIN PCB MAIN PCB MAIN PCB MAIN PCB MAIN PCB MAIN PCB MAIN PCB MAIN PCB MAIN PCB MAIN PCB MAIN PCB MAIN PCB MSF 23NM 22 6 REPLACEMENT OF MAIN COMPONENTS 6 1 TOP PANEL PARTS MAIN PCB LOCK ASSEMBLY or POWER SWITCH DOOR SWI...

Page 13: ...ttom grille by unscrewing the four screws located on each side of bottom grille C Open the capacitor cover Disconnect the Mullion Heater REPLACEMENT OF MAIN COMPONENTS 24 E Pull out the harness located back of top panel You can separate top panel out of the unit You can replace power switch lamp switch and display PCB ...

Page 14: ... the hole after revolving up to the requested TENSION DOOR HINGE UPPER DOOR HINGE UPPER DOOR HINGE UPPER DOOR HINGE UPPER DOOR HINGE UPPER DOOR HINGE UPPER DOOR HINGE UPPER DOOR HINGE UPPER DOOR HINGE UPPER DOOR HINGE UPPER DOOR HINGE UPPER DOOR HINGE UPPER DOOR HINGE UPPER DOOR HINGE UPPER DOOR HINGE STOP PIN DOOR HINGE STOP PIN DOOR HINGE STOP PIN DOOR HINGE STOP PIN DOOR HINGE STOP PIN DOOR HIN...

Page 15: ...and GRILL ASSEMBLY 1 Take apart TOP GRILL after eliminating screw connected Upper or downward located in the PICTURE A 2 Take apart GRILL after eliminating the screw connected Left and right side located in the PLCTURE A 2 Taking apart of DOOR ASSEMBLY 1 Take apart in order at the PICTURE B REPLACEMENT OF MAIN COMPONENTS 28 C Remove the door hinge stop pin B Place the door hinge stop pin and adjus...

Page 16: ...ORATOR FAN MOTOR EVAPORATOR FAN MOTOR EVAPORATOR FAN MOTOR EVAPORATOR FAN MOTOR EVAPORATOR FAN MOTOR EVAPORATOR FAN MOTOR EVAPORATOR FAN MOTOR EVAPORATOR FAN MOTOR EVAPORATOR FAN MOTOR EVAPORATOR FAN MOTOR EVAPORATOR DRAIN PAN HEATER EVAPORATOR DRAIN PAN HEATER EVAPORATOR DRAIN PAN HEATER EVAPORATOR DRAIN PAN HEATER EVAPORATOR DRAIN PAN HEATER EVAPORATOR DRAIN PAN HEATER EVAPORATOR DRAIN PAN HEATE...

Page 17: ...1 Disconnect the fan motor s harness D 2 Untie the four screws which located on bottom of fan motor EVAPORATOR FAN MOTOR EVAPORATOR FAN MOTOR EVAPORATOR FAN MOTOR EVAPORATOR FAN MOTOR EVAPORATOR FAN MOTOR EVAPORATOR FAN MOTOR EVAPORATOR FAN MOTOR EVAPORATOR FAN MOTOR EVAPORATOR FAN MOTOR EVAPORATOR FAN MOTOR EVAPORATOR FAN MOTOR EVAPORATOR FAN MOTOR EVAPORATOR FAN MOTOR EVAPORATOR FAN MOTOR FREEZE...

Page 18: ...SPLAY T SENSOR DISPLAY T SENSOR DISPLAY T SENSOR DISPLAY T SENSOR REFRIGERATOR C SENSOR REFRIGERATOR C SENSOR REFRIGERATOR C SENSOR REFRIGERATOR C SENSOR REFRIGERATOR C SENSOR REFRIGERATOR C SENSOR REFRIGERATOR C SENSOR REFRIGERATOR C SENSOR REFRIGERATOR C SENSOR REFRIGERATOR C SENSOR REFRIGERATOR C SENSOR REFRIGERATOR C SENSOR REFRIGERATOR C SENSOR REFRIGERATOR C SENSOR DISPLAY T SENSOR DISPLAY T...

Page 19: ...Separate the Lamp shield End Cap 3 Take out the Doors and separate the Lamp from the Lamp Holder REPLACEMENT OF MAIN COMPONENTS 36 6 7 LIGHTING PARTS A MSR 23G 1 1 Untie three screws seciromg the Lamp Reflection 2 Separate the Lamp Reflection 3 Separate the Lamp out of the Lamp socket and replace it ...

Page 20: ...2 030 4 76 13340 1 CONDENSER COIL R2202 031 4 76 18960 1 1 1 CONDENSER COIL R2273 021 1 CONDENSER DRYER R2183 032 25 4 169 0 635 1 1 1 1 1 CONDENSER DRYER R2183 043 25 4 130 0 635 1 CONDENSER FAN CONDENSER FAN MOTOR R7423 020 SE 043 9W CCW 1550RPM 1 1 1 1 1 1 CONDENSER FAN MOTOR BLADE R3729 020 AL3004H14 9 CCW T1 0 1 1 1 1 1 1 CONDENSER FAN MOTOR BRACKET R3313 260 SBHG1 0 T2 0 164 1 1 1 1 1 1 DRAI...

Page 21: ... 1 1 EVAPORATOR COIL R2263 034 CU AL 1 EVAPORATOR COIL R8613 342 CU AL 1 1 EVAPORATOR COIL R8613 353 CU AL 1 EVAPORATOR DEFROST HEATER R7303 410 SUS304 8 600 W 22 0Ω 1 EVAPORATOR DEFROST HEATER R7303 400 SUS304 8 445 W 29 7Ω 1 EVAPORATOR DRAIN PAN HEATER R7303 180 PVC 105 90W 147Ω 1 EVAPORATOR DRAIN PAN HEATER R7303 170 PVC 105 90W 147Ω 1 SENSOR BRACKET R3314 190 P P WHT 1 1 1 1 1 1 EVAPORATOR THE...

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