Ice-O-Matic EF Series - Manuals

Flake Ice Machines General Information Page A7 EF Series

Flake Ice Machines General Information Page A8 EMF Series

Flake Ice Machines General Information A10 Remote Condenser Installation The EMF1106R2 and EMF2306R2 remote ice makers incorporate the mixing valve in the condenser. This configuration allows up to a 100 foot calculated remote line set run. Reference the diagram below to calculate the maximum 100 fo...

Flake Ice Machines General Information Page A11 ICE-O-Matic Parts and Labor Domestic & International Limited Warranty Mile High Equipment LLC (the “Company”) warrants ICE-O-Matic brand ice machines, ice dispensers, remote condensers, water filters, and ice storage bins to the end customer agains...

Flake Ice Machines General Information Page A12 General Operation A general description of the flake ice machine operation is given below. The remainder of the manual provides more detail about the components and systems. Water enters a reservoir through the float valve and is gravity fed into the e...

Flake Ice Machines Scheduled Maintenance Page B1 Danger! Electrical shock and/or injury from moving parts inside this machine can cause serious injury or death. Disconnect electrical supply to machine prior to performing any adjustments or repair. Maintenance Procedure Warning! Failure to perform th...

Flake Ice Machines Scheduled Maintenance Page B2 CAUTION: Protective eyewear and gloves should be worn when using cleaning products. CLEANING AND SANITIZING INSTRUCTIONS 1. Turn the machine and water supply to the float off. 2. Remove or melt all ice in the bin. 3. Prepare one gallon (3.75l) of non-...

Flake Ice Machines Winterizing Procedures Page B3 Winterizing Procedures Important! Whenever the ice machine is taken out of operation during the winter months, the procedure below must be performed. Failure to do so may cause serious damage and will void all warranties. 1. Turn off water to machine...

Flake Ice Machines Cabinet Care Page B4 Cleaning Stainless Steel Commercial grades of stainless steel are susceptible to rusting. It is important that you properly care for the stainless steel surfaces of your ice machine and bin to avoid the possibility of rust or corrosion. Use the following recom...

Flake Ice Machines Troubleshooting Trees Page C1 How To Use The Troubleshooting Trees The troubleshooting trees were developed to be used in conjunction with the service information in the sections that follow. If used together as intended, these two parts of the manual will allow the ice machine se...

Flake Ice Machines Troubleshooting Trees Page C2 Machine Runs, Does Not Make Ice

Flake Ice Machines Troubleshooting Trees Page C4 Machine Does Not Run

Flake Ice Machines Troubleshooting Trees Page C5 Slow Production

Flake Ice Machines Troubleshooting Trees Page C6 Low Production

Flake Ice Machines Troubleshooting Trees Page C7 High Suction Pressure

Flake Ice Machines Troubleshooting Trees Page C9 Auger Motor Amp Draw Fluctuates

Flake Ice Machines Troubleshooting Trees Page C10 Water Leaking From Bottom of Evaporator

Flake Ice Machines Troubleshooting Trees Page C11 Machine Produces Wet Ice

Flake Ice Machines Troubleshooting Trees Page C13 Noise Coming from Evaporator

Flake Ice Machines Water System Page D1 Water System The water system in the flaker uses a floated operated valve that maintains the water level in the evaporator barrel during ice making. Float Valve and Reservoir Water enters the machine through the float valve located in the water reservoir and i...

Flake Ice Machines Water System Page D2 Water Seal and Lower O-Ring The water seal is located in the bottom of the evaporator and prevents water from leaking out of the evaporator. The water seal consists of two (2) components: the seal and the seal face. The seal is fitted into the lower bearing ho...

Flake Ice Machines Drive System Page E1 Drive System The drive system consists of all components used to turn the auger. The auger drive motor turns the gear reducer via a V-Belt. A coupler is used to connect the gear reducer to the auger. The auger is located in the evaporator and is supported by t...

Flake Ice Machines Drive System Page E2 Gear Reducer The gear reducer transfers torque to the auger. The auger drive motor turns the input shaft of the gear reducer at a high rate of speed. The input shaft turns a worm (screw type gear) that meshes with a worm gear (bronze gear). The worm gear turns...

Flake Ice Machines Drive System Page E3 Evaporator and Internal Components The evaporator assembly includes the evaporator and all of its internal components. The internal components consist of the upper and lower bearings and housings, water seal assembly, upper and lower O-Rings, auger, and upper ...

Flake Ice Machines Drive System Page E4 Remove the upper evaporator retaining nut by using a chain wrench (wrap chain around the upper part of the nut) to loosen the nut. Setscrews are not used on the upper nut . (Right Hand Thread) Caution: Do not use a hammer and chisel to loosen the nut, as damag...

Flake Ice Machines Drive System Page E5 Vertical Score Lines Guide the Ice Upward Evaporator Barrel and Auger Inspection Inspect the evaporator for damage around the dispense opening. If it is cracked or bulged outward, it is probably due to a bin control failure. Check both bin controls for proper ...

Flake Ice Machines Drive System Page E6 Bearings, Water Seal and O-Rings There is a bearing at the top and bottom of the auger shaft to allow the auger to rotate freely with a minimum amount of friction. The lower bearing is a sealed ball bearing and the upper bearing is a tapered roller bearing. Ta...

Flake Ice Machines Drive System Page E7 Seal Face Installation Lightly lubricate the rubber portion of the seal face and apply a small amount of silicone sealant to the metal part of the seal face (rubber side) that seats against the auger. Install the seal face on the auger. Caution : Do not scratc...

Flake Ice Machines Drive System Page E8 Exploded View of the Evaporator

Flake Ice Machines Refrigeration System Page F1 Refrigeration System and Components Before diagnosing the refrigeration system, it is important that the refrigerant charge be correct. Whenever the refrigeration system has been opened, the filter-drier must be replaced and the proper refrigerant char...

Flake Ice Machines Refrigeration System Page F3 Refrigerant Pressures (Continued) The operating pressures for models utilizing the Alco thermostatic expansion valve are listed below. ALCO Manufactured Expansion Valve Model Air Water Suction Discharge Pressure PSIG Number Temp °F Temp °F Pressure PSI...

Flake Ice Machines Refrigeration System Page F4 Refrigerant Pressures (Continued) The operating pressures for models utilizing the Sporlan thermostatic expansion valve are listed below. SPORLAN Manufactured Expansion Valve Model Air Water Suction Discharge Pressure PSIG Number Temp °F Temp °F Pressu...

Flake Ice Machines Refrigeration System Page F6 To properly cool the condenser, there must be adequate airflow around the machine. The ambient air temperature should not exceed 100 ° F (38 ° C). See Installation Guideline on Page A6. The condenser coil and fan blades must be kept clean. The condense...

Flake Ice Machines Refrigeration System Page F7 Expansion Valve The expansion valve meters the flow of refrigerant into the evaporator, changing its state from a high pressure liquid to a low pressure liquid. This drop in pressure causes the refrigerant to cool. The cooled refrigerant absorbs heat f...

Flake Ice Machines Refrigeration System Page F9 Evaporator When water fills the evaporator, liquid refrigerant is circulated through the tubing wrapped around the evaporator. As the liquid refrigerant in the tubing vaporizes, it absorbs heat from the water, causing it to freeze. The evaporator shoul...

Flake Ice Machines Refrigeration System Page F10 Remote System Machines that use remote condensers have several components that are not used in self contained machines. A mixing valve controls the head pressure when the ambient temperature at the condenser drops below 70°F (21°C). When the bin fills...

Flake Ice Machines Refrigeration System Page F11 Mixing Valve Diagnosis: Problem Possible Cause Remedy Pump Down System (Remote Only) a. Replace valve a. Leak check. Recover refrigerant and weigh in proper charge. b. Replace valve. a. Replace valve. a. Valve defective, not allowing discharge gas int...

Flake Ice Machines Refrigeration System Page F12 Receiver If the system has a remote condenser, the refrigerant will enter a receiver before passing through the filter drier. The receiver holds reserve liquid refrigerant during the freeze cycle. The receiver also stores liquid refrigerant during the...

Flake Ice Machines Electrical System Page G1 Control Circuit All machines in this manual are controlled basically the same way. Selector Switch The selector switch is used to start the ice making cycle or to turn the machine off. The machine is put into operation by switching the selector switch to ...

Flake Ice Machines Electrical System Page G2 Compressor Check If the compressor uses an internal overload, be certain that the compressor has cooled and the overload has reset before diagnosing the compressor. If the compressor is cool and is still not running, check the compressor motor windings by...

Flake Ice Machines Electrical System Page G3 Adjustment Screw Safety Control The low temperature safety control prevents the machine from operating without water in the evaporator of if the v-belt breaks. If the evaporator temperature drops below approximately 30 ° F (-1 ° C), the safety control wil...

Flake Ice Machines Electrical System Page G4 Mechanical Bin Control The mechanical bin control is located in the top panel of the ice bin on the EF Series and on the top of the down chute on the EMF Series. When ice fills the down chute on the EMF Series units, or ice fills the bin on EF Series unit...

Flake Ice Machines Electrical System Page G5 Compressor Delay When the machine starts, the compressor delay timer is energized. Once the timer counts out, the contactor is energized and the compressor starts. The compressor delay timer will keep the compressor off for approximately 5 minutes when th...