Installation Instructions Section 26 Part Number 040001361 05/10Electrical ServiceGENERALPrepare electrical circuit before installation of your icemachine. Installation requires a grounded (three-prong),polarized receptacle with a separate fuse/circuit breakerin an electrical service box.VOLTAGEThe maximum allowable voltage variation is ±10% of therated voltage at ice machine start-up (when the electricalload is highest).All electrical work, including wire routing and grounding,must conform to local, state and national electricalcodes. The following precautions must be observed:• The ice machine must be grounded.• A separate fuse/circuit breaker must be provided foreach ice machine.• The maximum allowable voltage variation is +/-10%of the rated voltage at ice machine start-up (when theelectrical load is highest).• Check all green ground screws in the control box andverify they are tight before starting the ice machine.• Manitowoc’s recommended minimum wire size is#14 for less than 100' (30.5 m) or #12 for more than100' to 200' (30.5 to 61 m) (solid copper conductoronly). The recommended breaker is 15 amp. Local orstate electrical code, length of run or materials used,can increase the minimum wire gauge required. Aqualified electrician must determine the proper wiresize, although #14 is the minimum size allowed.Incorrect polarity can lead to erratic ice machineoperation and a safety issue.MINIMUM CIRCUIT AMPACITYThe minimum circuit ampacity is used to help select thewire size of the electrical supply. (Minimum circuitampacity is not the ice machine’s running amp load.)ELECTRICAL REQUIREMENTSRefer to Ice Machine Model/Serial Plate for voltage/amperage specifications.MAXIMUM BREAKER SIZE & MINIMUM CIRCUITAMPERAGE CHARTGFCI REQUIREMENTSIf GFCI (ground fault circuit interrupter) is required bylocal electrical code, it must be breaker type.! WarningAll wiring must conform to local, state and nationalcodes.! WarningThe ice machine must be grounded in accordancewith national and local electrical codes.ImportantObserve correct polarity of incoming line voltage.ModelVoltagePhaseCycleAir-CooledMaximumFuse/CircuitBreakerMinimumCircuitAmpsSM50A 115/1/60 15 4.1