Ice-O-Matic EF Series Water Cooled Condenser, Water Regulating Valve, Air Cooled Condenser Remote

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Flake Ice Machines

Refrigeration System

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 condenser can be cleaned with compressed air or by using a brush.

If a brush is used, brush in the direction of the fins taking care not to bend or distort the condenser fins. If the condenser fins are bent, this will also restrict the airflow through the condenser and the fins will need to be straightened with a fin comb.

Water Cooled Condenser

If the machine has been installed properly, the water flow through the condenser will be opposite the refrigerant flow. For proper water flow, the water for the condenser must be piped through the water valve first. The water condenser must have a minimum of 20 PSI (1.4 Bar) of flowing water pressure to the condenser. The water temperature to the condenser must not exceed 100°F (38°C). A water regulating valve is used to control to flow of water to the condenser. In areas that have poor water quality, the condenser may eventually become coated with mineral deposits. This will decrease the efficiency of the condenser resulting in high head pressure and high water usage. Water cooled condensers replaced because of failure due to excessive mineral build up will not be covered under warranty.

Water Regulating Valve

The water regulating valve controls the head pressure by regulating the amount of water flow through the condenser. The bellows of the water regulating valve are connected to the high side of the refrigeration system. As the discharge pressure rises, the bellows expand, increasing the water flow through the condenser. Adjusting the spring pressure screw at the top of the valve can change the rate of water flow.

The unit should be run for 10 minutes, then the valve should be adjusted as needed to maintain a refrigerant discharge pressure of 250 PSI (18.3 Bar). Water exiting the condenser should be between 100°F (38°C) and110°F (43°C). When the machine is off, either on full bin or when the selector switch is in the off position, the regulating valve will close completely, stopping the flow of water through the condenser. If the water flow does not stop when the machine is not running, the valve should be replaced.

Air Cooled Condenser (Remote)

See Pages F10 or go to Page A10 for remote condenser installation.

High Pressure Safety

The high pressure safety control is a normally closed control. If the discharge pressure becomes too high, the high pressure safety control will open and shut the machine off. The high pressure safety control is an automatic reset type and will close and restart the machine when the pressure drops. The high pressure safety control is used on all water cooled and remote machines and some air cooled machines.

Page F6

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Contents Service and Installation Manual Page Flake Ice Machines Table Of ContentsHow To Use This Manual Serial Number Date Code General InformationModel and Serial Number Format Model Numbers EF 80 0 a Page RLA LRA Electrical and Mechanical SpecificationsDrains Installation Guidelines Ambient Operating TemperaturesElectrical Specifications AdjustmentsEF Series EMF Series EMF Series 48 Inch Wide A10 ICE-O-Matic Parts and Labor Domestic & International Limited WarrantyEvaporator Float Gear Reducer Belt Auger Motor General OperationMaintenance Procedure Scheduled MaintenanceCleaning and Sanitizing Instructions Winterizing Procedures Winterizing ProceduresMethod of Application Cleaning Activity Cleaning AgentCabinet Care How To Use The Troubleshooting Trees Troubleshooting TreesMachine Runs, Does Not Make Ice Flake Ice Machines Machine Does Not Run Slow Production Low Production High Suction Pressure Machine Freezes Up Auger Seizes Auger Motor Amp Draw Fluctuates Water Leaking From Bottom of Evaporator Machine Produces Wet Ice C12 Noise Coming from Evaporator Float Valve and Reservoir Water SystemWater System Water Seal and Lower O-Ring Drip BootDrive System Drive SystemCoupler Evaporator and Internal Components Evaporator DisassemblyRemove 2 setscrews Evaporator Barrel and Auger Inspection Bearings, Water Seal and O-Rings Evaporator Reassembly Seal Face InstallationExploded View of the Evaporator Compressor Refrigeration SystemRefrigeration System and Components Page Refrigerant Pressures EF/EMF450A Page Air Cooled Condenser Remote High Pressure SafetyWater Cooled Condenser Water Regulating ValveExpansion Valve Production Check Expansion Valve Diagnosis SymptomProblem RemedyEvaporator Mixing Valve L.A.C., Headmaster Remote SystemRemote Condenser Liquid Line Solenoid Mixing Valve Diagnosis Problem Possible Cause RemedyPump Down System Remote Only Refrigerant ReceiverMethod of Charging Refrigerant F14 Contactor Selector SwitchElectrical System Control CircuitStart Relay Overload ExternalCapacitors Thermostatic Bin Control Safety ControlBin Control Auger Motor Relay Mechanical Bin ControlPump Down Control Compressor DelayEF250/255/405 EF450A/W 9071694-01 EF800A/W 9071963-01 EMF450/405A/W 9071958-01 EMF800A/W EMF705/1005/1006A/W 9071956-01 EMF1106R EMF2306A/W EMF2306R EMF2305L 9071959-01 Page

EF Series, EMF Series specifications

Ice-O-Matic is a recognized leader in the ice-making industry, known for its innovative technologies and commitment to quality. Among its flagship products are the EMF Series and EF Series ice machines, designed to meet the demands of various commercial environments. These machines combine advanced features with user-friendly functionalities, making them suitable for restaurants, bars, hotels, and convenience stores.

The EMF Series stands out with its capability to produce ice in a range of styles, including half cubes, full cubes, and gourmet ice. This versatile output makes it an excellent choice for establishments that require different ice types for various applications. The EMF machines are designed with a built-in storage bin, optimizing floor space while ensuring a continuous supply of ice. With production capabilities that can range from 200 to 800 pounds of ice per day, they cater exceptionally well to high-volume demands.

On the other hand, the EF Series focuses on efficiency and reliability. Featuring modular designs, these machines can be stacked or used in tandem, providing flexibility for businesses as their needs evolve. The EF Series offers a robust production range, capable of generating up to 1,500 pounds of ice daily, allowing it to service larger venues without sacrificing performance. The high-density foam insulation ensures that ice stays intact longer, reducing waste and enhancing overall efficiency.

Both series are equipped with Ice-O-Matic’s innovative Pure Ice technology, which not only ensures high-quality ice but also addresses concerns related to water quality. The built-in water filter options reduce impurities, resulting in clearer and more appealing ice. Additionally, these machines utilize an easy-to-clean design, promoting hygiene and maintenance simplicity. The front-access service doors facilitate straightforward maintenance, further minimizing downtime in busy environments.

Both EMF and EF Series machines are energy-efficient, boasting ENERGY STAR certifications. They are built with an environmentally friendly refrigerant, which helps establishments reduce their carbon footprint while saving on energy costs.

In conclusion, Ice-O-Matic's EMF and EF Series ice machines bring together cutting-edge technology, versatility, and efficiency, making them prime choices for any commercial establishment seeking reliable ice production. Their superior design features, user-friendly maintenance, and commitment to quality ensure that they meet the varied demands of the foodservice industry while promoting sustainability.
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