MAINTENANCE

THE FOLLOWING MAINTENANCE SHOULD BE PERFORMED AT LEAST EVERY SIX MONTHS ON FLAKED ICE MACHINES:

1.Check power supply with machine running for proper voltage.

2.Check water level in the float tank reservoir. Water level should be maintained at the top of the evaporator. Adjust if necessary. (See illustration and adjustment procedure)

3.Clean the air–cooled condenser coil with a stiff brush or vacuum cleaner (See procedure)

CAUTION: CONDENSER COOLING FINS ARE SHARP, USE CARE WHEN CLEANING.

4.Clean the ice storage bin and flush the bin drain at least once a month.

5.If a water conditioner is installed in the inlet water line, change, replace, or clean the filter, strainer or car- tridge as required.

6.If heavy mineral deposits on the auger and evaporator shell are encountered due to bad local water condi- tions, follow sanitizing and cleaning procedure.

7.Loosen hold–down cam locks and remove gearmotor assembly.

8.Check thrust washer; replace if noticeably worn.

9.Lift out auger and examine for wear. The corkscrew auger guide bushing pressed into the drive block should be checked for wear. Replace if loose or if worn flat with auger drive block. If the Helix auger on the corkscrew auger round bar becomes flat on the inside more than 1/8 of an inch over a length of two inches or more it should be replaced.

NOTE: HELIX AUGERS DO HAVE MACHINED FLAT RELIEF SURFACES. DON’T CONFUSE THEM WITH WORN FLAT AREAS.

Check the insert in the bottom ring of the Helix auger and replace if excessively worn.

10.Check shell vertical strips for wear. Replace the shell if excessive wear is shown.

11.Check O–Ring, replace if worn or cut.

12.Re–assemble, steps 7through 11.

CAUTION: IN RE–ASSEMBLING THE AUGER GEARMOTOR, THE HOLD DOWN CLAMPS MUST BE RIGHT AND SECURE. IN RE–INSTALLING THE EVAPORATOR SHELL, BE

ABSOLUTELY SURE THAT THE ”O” RING IS NOT PINCHED OFF AS THIS WOULD CAUSE A WATER LEAK AROUND THE BASE OF THE EVAPORATOR. LUBRICATE THE ”O” RING WITH FOOD GRADE LUBRICANT BEFORE RE–ASSEMBLING SHELL.

13.Check for alignment of ice chute. Make sure chute gasket is not blocking path of ice flow.

14.Check bin thermostat operation. In the mid–range position the bin thermostat will open at 42_ and has a 6_ differential.

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Cornelius 2400 (R404A), 750 (R404A), SERIES 1100 (R22) service manual Maintenance
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2400 (R404A), SERIES 1100 (R22), 750 (R404A) specifications

Cornelius 750, 1100, and 2400 are part of a line of refrigeration systems designed to meet the diverse needs of various industries, including food service and beverage dispensing. Each model utilizes specific refrigerants—R404A for the 750 and 2400, and R22 for the 1100—highlighting their engineering innovations and operational efficiencies.

The Cornelius 750 (R404A) is engineered for optimal performance in demanding environments. It is noted for its compact design, making it ideal for applications where space is limited. With advanced thermal management technologies, it guarantees rapid cooling and maintains temperature integrity, which is crucial for preserving the quality of stored goods. The energy-efficient compressor employed in this model not only reduces operational costs but also minimizes its environmental footprint, adhering to modern sustainability standards.

Similarly, the Cornelius 1100 (R22) is a robust refrigeration unit best suited for larger scale operations. It features heavy-duty construction and advanced coil technology, which enhances its heat exchange efficiency. The R22 refrigerant used in this series is well known for its effectiveness in high-temperature environments, making it a preferred choice for various cooling applications. Despite the phase-out of R22, systems utilizing it remain widely in service, offering reliability and performance that many operators depend on.

The Cornelius 2400 (R404A) is designed for high-capacity applications, tailored to meet the demands of busy food service environments. One of its standout features is its ability to maintain consistent temperatures even under heavy load conditions. This model incorporates enhanced insulation and improved airflow mechanisms that contribute to reduced energy consumption. The use of R404A refrigerant allows for robust cooling performance while also being more environmentally conscious than older refrigerants.

All three models emphasize advanced features such as electronic controls, customizable settings, and diagnostic capabilities, allowing for easy monitoring and maintenance. These technological enhancements not only improve operational efficiency but also extend unit longevity, saving users time and money in the long run.

In summary, the Cornelius 750, 1100, and 2400 refrigeration series showcases a combination of reliability, efficiency, and performance attributes. Their unique refrigerants, advanced cooling technologies, and innovative design make them ideal choices for varied refrigeration needs in the commercial sector.
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