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The merchandiser must be plugged into a 115 volt, 60 HZ grounded receptacle electrical outlet with a 
circuit fuse or breaker.  (See figure 1). The condensing unit data plate will indicate the maximum 
fuse/breaker size. DO NOT use extension cords. Extension cords may decrease the voltage to the unit and 
ultimately cause the compressor to fail. 
 

 

 

NOTE: Some outdoor locations require ground fault interrupt (GFI) outlets. These outlets may trip 
upon condensing unit start. Refrigeration equipment is exempt in some areas from GFI 
requirements.  Local electric codes should be checked.  

 
Plug merchandiser power cord into lower receptacle of electrical outlet. The condensing unit will start, the 
light will illuminate on glass door models, and unit cooler evaporator fans will start on Auto-Defrost 
models. The condensing unit will continue to run until air temperature in cabinet is approxi18° F.  
If merchandiser has a condensate evaporator, plug evaporator power cord into upper receptacle of electrical 
outlet and heater rod will heat.  
 
2.  Temperature Control: Cabinet temperature is maintained by cycling the condensing unit automatically 
with a thermostat. On Auto-Defrost models, the thermostat is located on the left end of unit cooler cover. 
On Cold Wall models, the thermostat is located on a bracket under the condensing unit cover. (The 
thermostat for Low Profile Cold Wall models is located on bracket at upper rear interior). 
 
The temperature is adjusted by turning the control knob. Turning the control knob fully counterclockwise 
will shut off power to compressor. 

DO NOT

 readjusts the internal adjustments of the control without 

consulting factory.  
 

All manuals and user guides at all-guides.com

Summary of Contents for IM-38

Page 1: ...INSTALLATION OPERATIONS MANUAL MASTER BILT Products 908 Highway 15 North New Albany MS 38652 Phone 800 6848988 REV 2 29 12 By LN All manuals and user guides at all guides com a l l g u i d e s c o m...

Page 2: ...VII AUTO DEFROST WIRING DIAGRAM 10 VIII AUTO DEFROST TROUBLE SHOOTING FLOWCHART 11 IX REPLACEMENT PARTS 12 13 X WARRANTY 14 Read CAUTION highlighted statements and merchandiser labels NOTE Electrical...

Page 3: ...ay result in compressor failure Outdoor merchandisers Locations shaded from sunlight are recommended for more economical operation Auto defrost models Leave sufficient space behind merchandiser to pre...

Page 4: ...orator fans will start on Auto Defrost models The condensing unit will continue to run until air temperature in cabinet is approximately 18 F If merchandiser has a condensate evaporator plug evaporato...

Page 5: ...Defrost AD Evaporator Auto Defrost merchandisers utilize a unit cooler evaporator with an electric defrost heating element to melt the frost off the evaporator coil The defrost cycle is controlled by...

Page 6: ...examined for tears or any other problems that would cause loss of seal Replace torn worn gaskets to maintain correct temperature and refrigeration efficiency B Hinges exposed to harsh environmental c...

Page 7: ...e strong detergents abrasive cleansers solvents wax or polish as they are likely to leave objectionable odors which may be absorbed by the ice Wash the outside surfaces with a mild soap and warm water...

Page 8: ...8 All manuals and user guides at all guides com...

Page 9: ...9 All manuals and user guides at all guides com...

Page 10: ...10 All manuals and user guides at all guides com...

Page 11: ...11 All manuals and user guides at all guides com a l l g u i d e s c o m...

Page 12: ...e with cover for 27 x 27 solid door 1911019 17 Door Stucco Stainless Steel 5590030 27 x 46 with gasket 18 Door Gasket for 1030014 27 x 46 solid door 19 Glass Door 28 x 47 Silver Frame 1412012 Glass Do...

Page 13: ...13 All manuals and user guides at all guides com...

Page 14: ...LABOR REIMBURSED WILL BE BASED ON STRAIGHT TIME RATE AND REASONABLE TIME FOR THE REPAIR OF THE DEFECT 4 3 7 22 49 3 8 53 6 5 4 2 7 22 4 3 802 33 2 0 5 4 0 7 22 4 3 2 4 49 4 33 2 0 24 5 2 0520 3 N NO E...

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