Commercial Refrigerator & Freezer Service Manual Solid Door Model No. : MSR-23NM MSR-49NM MSF-23NM MSF-49NM Glass Door Model No.
TABLE OF CONTENTS 1. FEATURE CHART 1. FEATURE CHART 1-1. FRONT VIEW(MSF-49NM) 1-2. SIDE VIEW(MSF-49NM) 1-3. FRONT VIEW(MSR-49G-2) 1-4. SIDE VIEW(MSR-49G-2) 1-1. FRONT VIEW(MSF-49NM) ① 2. WIRING DIAGRAM 2-1. REFRIGERATOR : MSR-23NM, MSR-49NM 2-1. REFRIGERATOR : MSR-23G-1, MSR-49G-2 2-2. FREEZER : MSF-23NM, MSF-49NM 3. PART DETAILS 3-1. TOP PANEL 3-2. COMPRESSOR COMPARTMENT 3-3. DOOR 3-4. COOLING COMPARTMENT ④ ⑦ ⑧ ⑨ ⑩ ③ ⑥ ⑤ ② ⑪ 4. MAIN COMPONENTS 4-1. COMPRESSOR 4-2. POWER RELAY(COMP. RELAY) 4-3.
FEATURE CHART 1-2. SIDE VIEW(MSR-49NM) ③ FEATURE CHART 1-3.
2. WIRING DIAGRAM FEATURE CHART 1-4. SIDE VIEW(MSR-49G-2) ②③ 2-1.
WIRING DIAGRAM WIRING DIAGRAM ● MSR-23G-1 2-2.
3. PART DETAILS PART DETAILS 3-1. TOP PANEL 3-2.
PART DETAILS PART DETAILS 3-3. DOOR Door Gasket Drain Pan DRAIN DRAIN DRAIN WICKING WICKING PAD PAD PAD GASKET GASKET DRAIN DRAIN PAN PAN 3-4.
4. MAIN COMPONENTS PART DETAILS 4-1. COMPRESSOR Evaporator Housing (Duct) (MSF-23NM, MSR-23NM Type) MODEL MSR-23NM MSR-49NM MSF-23NM MSF-49NM MSR-23G-1 MSR-49G-2 Refrigerant R-134a R-404a R-134a Voltage 115 V / 60 Hz Comp. Model SK182C-L2U SK1A1C-L2W AJA2425ZXA SK1A1C-L2W AKA4476YXA Part code R7439-110 R7439-030 R7439-110 R7439-150 R7439-010 Starting type CSR RSCR CSR 4-2. COMP.
5. ELECTRONIC CONTROL INSTRUCTIONS MAIN COMPONENTS 4-6. CONDENSER FAN MOTOR MODEL Voltage Motor Model Part code MSR-23NM MSR-49NM 5-1. FREEZER CONTROL MSF-23NM MSF-49NM 115 V / 60 Hz SR-043 R7423-020 MSR-23G-1 MSR-49G-2 - 88 LED - It indicates setting temperature, except defrost function 4-7.
ELECTRONIC CONTROL INSTRUCTION ELECTRONIC CONTROL INSTRUCTION No Controlled Part Function 5-1-3. FUNCTION TABLE No Function 1 Initial Operation Controlled Part 1. It can be set as below according to the connection of JUMPER (J1,J2,J3)in the main PCB. Description 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℉. Temperature Control Compressor LED P. C .
ELECTRONIC CONTROL INSTRUCTION ELECTRONIC CONTROL INSTRUCTION SENSOR DESCRIPTION Sensor D-sensor Model Wire Color Freezer Detect Eva coil’s temp. to terminate defrosting WHT Freezer Detect inside air temp. to operate comp and to indicate the inside temp. on the display PCB BLK C-sensor T-sensor Role Refrigerator Detect Eva coil’s temp. to operate comp BLK Refrigerator Detect inside air temp. to indicate the inside temp on the display PCB WHT 5-2-2.
6. REPLACEMENT OF MAIN COMPONENTS REPLACEMENT OF MAIN COMPONENTS 6-1. TOP PANEL PARTS - MAIN PCB - LOCK ASSEMBLY or POWER SWITCH - DOOR SWITCH B. Untie the screws located on bottom of top panel. # caution : When unscrewing, hold the top panel. Panel may fall & cause injury. A. Untie the screws located on top grille panel. C. Place the top panel on top of the cabinet. D.
REPLACEMENT OF MAIN COMPONENTS REPLACEMENT OF MAIN COMPONENTS 6-2 REPLACING DOOR 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. A. Disassemble top panel as described section 6-1 A,B B. Remove bottom grille by unscrewing the four screws located on each side of bottom grille. C. Open the capacitor cover.
REPLACEMENT OF MAIN COMPONENTS REPLACEMENT OF MAIN COMPONENTS 6-3 DOOR SPRING ADJUSTMENT D. Untie the hinge. A. Detailed structure of DOOR-HINGE SCREW SCREW SCREW HINGE HINGE HINGE HINGE DOOR DOOR DOOR SPRING SPRING SPRING DOOR DOOR HINGE HINGE STOP STOP PIN PIN DOOR DOOR DOOR B. Coordinated principle of DOOR TENSION After putting Tool for revolving DOOR-HINGE STOP-PIN HOLE, Insert DOOR-HINGE STOP-PIN into the hole after revolving up to the requested TENSION.
REPLACEMENT OF MAIN COMPONENTS REPLACEMENT OF MAIN COMPONENTS 6-4. REVERSIBLE-DOOR ASSEMBLING METHOD APPLIED MODEL : MSF-23NM, MSR-23NM C. Remove the door hinge stop pin 1.
REPLACEMENT OF MAIN COMPONENTS REPLACEMENT OF MAIN COMPONENTS 6-5. REFRIGERATION COMPARTMENT'S PARTS 3. Assembling method of REVERSIBLE DOOR 1) After reversing 180 degree ③DOOR-HINGE DOOR ASSEMBLY of ⑥, LOWER have the HANDLE be the ⑧DOOR-HINGE requested side. SHAFT-LOWER 2) Assemble as the following order - LAMP BULB, LAMP SHIELD - EVAPORATOR FAN MOTOR - D-SENSOR, C-SENSOR, T-SENSOR - EVAPORATOR COIL - EVAPORATOR DEFROST HEATER ⑨M5✽27 SCREW ⑦DOOR-HINGE BUSHING A.
REPLACEMENT OF MAIN COMPONENTS D. Replacing evaporator fan motor D-1. Disconnect the fan motor's harness. D-2. Untie the four screws which located on bottom of fan motor REPLACEMENT OF MAIN COMPONENTS E-2. DEFROST-sensor of Freezer Disassemble the DEFROST-sensor from the evaporator DEFROST DEFROST SENSOR SENSOR EVAPORATOR EVAPORATOR FAN FAN MOTOR MOTOR E. Replacing sensor E-1. FREEZER C-sensor of Untie as illustrated below and pull-out the FREEZER C-sensor from the cover. E-3.
REPLACEMENT OF MAIN COMPONENTS REPLACEMENT OF MAIN COMPONENTS 6-6. CONDENSING UNIT E-4. T-Sensor (Temperature Display Sensor) of Refrigerator - Condensing units : Compressor, Condenser Fan Motor, Condenser Coil, Condenser Dryer. - Others : Power-cord, Drain pan A. Untie two screws as below. DISPLAY T-SENSOR DISPLAY DISPLAY T-SENSOR T-SENSOR B.
REPLACEMENT OF MAIN COMPONENTS REPLACEMENT OF MAIN COMPONENTS 6-7. LIGHTING-PARTS B. MSR-49G-2 A. MSR-23G-1 1. Separate the Shelves 1. Untie three screws seciromg the Lamp Reflection. 2. Separate the Lamp Socket 3. Separate the Lamp out of the Lamp socket and replace it. 2. Separate the Lamp Reflection 3. Take out the Doors and separate the Lamp from the Lamp Holder. 4.
7. PART-LIST REPLACEMENT OF MAIN COMPONENTS C. BALLAST Part name 1. Untie four screws securing the sign frame End separate Sign Frame End. 2. Separate connector of the ballast Code Description Solid Glass R23 R49 F23 F49 R23 R49 CASTER CASTER R3323-010 SPCC 4" 2 2 2 2 2 2 CASTER BRAKE R3323-020 SPCC 4" 2 2 2 2 2 2 COMPRESSOR R7439-030 AJA2425ZXA COMPRESSOR R7439-110 SK1A1C-L2W 1 1 COMPRESSOR 3. Untie two screws for separating the Ballast.
PART-LIST Part name Code Description PART-LIST Solid Glass R23 R49 F23 F49 R23 R49 EVAPORATOR Part name Code Description Solid Glass R23 R49 F23 F49 R23 R49 BOTTOM GRILLE EVAPORATOR COIL R2263-044 CU+AL EVAPORATOR COIL R2263-034 CU+AL EVAPORATOR COIL R8613-342 CU+AL EVAPORATOR COIL R8613-353 CU+AL EVAPORATOR DEFROST HEATER R7303-410 SUS304 ￠8 600 W 22.0Ω EVAPORATOR DEFROST HEATER R7303-400 SUS304 ￠8 445 W 29.
