CROWN EP-60 (01) PDF Document

Before installing and operating your CROWN EP-60, ensure everyone involved in its operation is fully trained and aware of precautions. Accidents and problems can be caused by failure to follow fundamental rules and precautions. Pay close attention to the following safety symbols and notes:

DANGER: This symbol warns of immediate hazards that will result in severe injury or death.

WARNING: This symbol refers to a potential hazard or unsafe practice that could result in injury or death.

CAUTION: This symbol refers to a potential hazard or unsafe practice that could result in injury, product damage, or property damage.

NOTICE: This symbol refers to information that needs special attention or must be fully understood, even though not dangerous.

Key Safety Guidelines:

– WARNING: This is the safety alert symbol. It is used to alert you to potential personal injury hazards. Obey all safety messages that follow this symbol to avoid possible injury or death.

– WARNING: FOR YOUR SAFETY: Do not store or use gasoline or other flammable vapors or liquids in the vicinity of this or any other appliance.

– WARNING: Improper installation, operation, adjustment, alteration, service or maintenance can cause property damage, injury or death. Read the installation, operating and maintenance instructions thoroughly before installing, operating or servicing this equipment.

– This product is intended for commercial use only. NOT FOR HOUSEHOLD USE.

– Do not attempt to operate this unit in the event of a power failure.

– Keep the appliance area free and clear from combustibles.

– DO NOT obstruct the flow of combustion and ventilation air.

– Adequate clearances MUST be maintained for servicing and proper operation.

The following table outlines the specifications for the CROWN EP-60 model.

The CROWN EP-60 has a standard power rating of 18 KW and optional ratings of 24 or 33 KW. The amps per line vary depending on the voltage and phase, as detailed in the table below.

Follow these instructions to properly install your CROWN EP-60 steam jacketed kettle.

Unpacking: Immediately after unpacking, check for possible shipping damage. If the kettle is found to be damaged, save the packaging material and contact the carrier within 15 days of delivery. Prior to installation, verify that the electrical service agrees with the specifications on the rating plate.

Installation Steps:

1. The kettle must be installed in accordance with State and/or local codes, and the National Electrical Code, ANSI/NFPA-70 (latest edition) in the USA, or the Canadian Electrical Code, Part 1, CSA Standard C22.1 (latest edition) in Canada.

2. Set the kettle in the installation location.

3. With the kettle in position, place a carpenter’s level on top of the kettle. For EP models, use shims to level the kettle side-to-side and front-to-back.

4. Mark hole locations on the floor through the anchoring holes provided on the pedestal base.

5. Remove the kettle and drill holes in the locations marked on the floor. Insert proper anchoring devices to accommodate 5/16″ size lag bolts (not supplied).

6. Reposition the kettle. Re-level the kettle by making necessary adjustments with shims.

7. Bolt down the kettle and seal with Silastic or other equivalent sealing compound. The sealant must be applied not only to bolt heads but also around the pedestal base where it makes contact with the floor surface to fulfill NSF requirements. Wipe off excess sealant immediately.

WARNING: Disconnect the electrical power supply and place a tag at the disconnect switch to indicate you are working on the circuit before proceeding with electrical connections.

A Control Box with a power supply equivalent to the electrical rating of the CROWN EP-60 should be located conveniently nearby.

1. Remove the wiring compartment cover and make electrical connections per the wiring diagram located inside the control housing cover panel.

2. A waterproof electrical connection from the power supply to the rear of the control housing must be provided.

3. The kettle must be grounded in accordance with the requirements of the National Electrical Code or applicable local codes. Ground the kettle to the terminal provided in the control housing.

4. Once proper connections are made, replace the wiring compartment cover, turn the power ON, and check for proper operation.

All internal wiring for the kettle is complete. If a faucet is provided, connect the water supply and check for proper operation.

The CROWN EP-60 is a pressure vessel with a double-wall construction that forms a sealed jacket (chamber) around the lower two-thirds of the kettle bowl. This jacket functions as a self-contained sealed chamber filled with a permanent solution of water and antifreeze.

When the Power Switch is turned ON and the Temperature Control knob is set, the TEMPERATURE pilot light comes on, and contactors close to power the heating elements inside the jacket. This generates steam, and the process continues until the water in the jacket reaches the preselected temperature. At this point, the thermostat de-energizes the contactors, cutting off power to the elements.

When the temperature in the jacket drops slightly, the cycle repeats itself to maintain the selected cooking temperature.

The jacket is designed to operate as a completely sealed chamber. The Pressure Gauge should indicate a vacuum (in the green zone, approx. 25 – 30 inches Hg) when the kettle is cold. This is because air has been removed at the factory. It is important not to trip the safety relief valve during inoperative periods, as this will break the vacuum seal and allow air to enter the jacket, affecting performance.

The unit has a Safety Probe that detects the water level in the jacket. If the water level drops, it activates the LOW WATER indicator light and signals the Liquid Level Control to switch off power to the heating elements, preventing them from burning out.

WARNING: The kettle and its parts are hot. Use care when operating, cleaning and servicing the kettle.

1. Ensure that the external electrical service to the kettle is on.

2. Check the pressure gauge for the correct cold kettle reading. The reading should be in the green area of the gauge, indicating 25 – 30 In. Hg (630 – 730 mm Hg) of vacuum. If the reading is not low enough, follow the VENTING procedure in the Troubleshooting section before using the kettle.

3. Place the power switch to the ON position.

4. Preheat the kettle by placing the thermostat knob at ’10’ and wait until the TEMPERATURE light goes off.

NOTICE: Preheating should not be used when cooking milk and egg food products which adhere to hot cooking surfaces. These foods should be placed into the kettle before heating has begun.

5. Add food to be cooked into the kettle.

6. Place the thermostat knob at the required temperature setting from 1 to 10. Refer to the temperature setting table for approximate jacket temperatures.

7. When cooking is finished, set the thermostat knob and power switch to the OFF position.

8. Empty the product from the kettle using the draw-off valve. Be careful to avoid splashing.

9. Add water to the kettle for cleaning purposes and wash it thoroughly.

The thermostat on your CROWN EP-60 can be set from 1 to 10. The following table provides the approximate jacket temperature for each setting.

WARNING: Disconnect the power supply to the appliance before cleaning or servicing.

WARNING: Never spray water into electric controls or components!

WARNING: The equipment and its parts are hot. Use care when operating, cleaning and servicing.

CAUTION: Do not use cleaning agents that are corrosive.

Your CROWN EP-60 should be cleaned immediately after each use. Before cleaning, check that the kettle has cooled enough to touch it.

1. Rinse the inside of the kettle thoroughly and drain to remove any food particles.

2. Using a nylon brush, clean the kettle with a mild detergent and water. Never use steel wool or scouring powder as it will scratch the stainless steel. Plain steel wool can leave small pieces of steel which can rust.

3. Rinse the inside of the kettle thoroughly with clean water. Drain the kettle using the tangent draw-off valve to allow the detergent and water solution to drain.

4. Wipe the exterior of the kettle with a clean, damp cloth.

WARNING: If you are cleaning a valve that is assembled to a kettle, be sure the kettle is completely empty of any product.

NOTICE: The draw-off valve has a vulcanized rubber coated stem for better sealing. Do not over tighten. This may cause the rubber to pull away from the stem and permanently damage it. This is not covered under warranty.

1. Turn the large hex nut on the draw-off valve counterclockwise until it is completely disengaged from the threads.

2. Grasp the valve knob and slowly pull out the valve stem. Wash the valve stem, disk, and handle.

3. Insert a nylon brush, wet with detergent and water, into the valve body and tangent draw-off tube. Brush vigorously.

4. Replace the valve stem assembly and turn the hex nut until snug. Rinse the kettle with clean warm water.

5. Leave the draw-off valve open when the kettle is not in use.

Surface rust can form from the inadvertent use of metal utensils which scratch the surface. To remove surface accumulation of rust, follow this procedure:

CAUTION: Improper use of this procedure may damage your appliance!

1. Use undiluted white vinegar with a non-abrasive scouring pad (plastic) or cloth on the affected area to remove the rust stain. The appliance should not be heated and must remain at room temperature during the entire cleaning process.

2. If the stain resists removal, additional exposure time with vinegar may be required, up to a maximum of one hour.

3. Thoroughly wash all of the vinegar away with fresh clear water. Dry the surface completely and allow one hour before using the appliance to cook.

Normal Cleaning: To remove normal dirt, grease, or product residue, use ordinary soap and water (with or without detergent) applied with a sponge or cloth. Dry thoroughly with a clean cloth. Never use vinegar or any other corrosive cleaner.

Baked-on Grease and Food: To remove grease and food splatters that have baked on, apply cleanser to a damp cloth or sponge and rub the cleanser on the metal in the direction of the polishing lines. Rub as gently as possible. NEVER RUB WITH A CIRCULAR MOTION.

Stubborn Deposits: Soil and burn deposits that do not respond to the above procedure can usually be removed by rubbing the surface with SCOTCH-BRITE™ or STAINLESS scouring pads. DO NOT USE ORDINARY STEEL WOOL, as any particles left on the surface will rust. NEVER USE A WIRE BRUSH, STEEL SCOURING PADS (EXCEPT STAINLESS), SCRAPER, FILE OR OTHER STEEL TOOLS.

Removing Heat Tint: Darkened areas (heat tint) can sometimes appear on surfaces subjected to excessive heat. This is caused by a thickening of the protective surface and is not harmful. Heat tint can normally be removed using the cleaning procedures above. For stubborn tint, a vigorous scouring in the direction of the polish lines using SCOTCH-BRITE™ pads or a STAINLESS scouring pad with a powdered cleanser may be required.

Control Panel: The textured control panel should be cleaned with warm water and mild soap. Never use an abrasive cloth or steel wool. Never use cleaning solvents with a hydrocarbon base.

CAUTION: Under normal operating conditions, a “try lever test” should be performed every two months. Under severe service conditions, or if corrosion and/or deposits are noticed within the valve body, testing must be performed more often. A “try lever test” should also be performed at the end of any non-service period.

CAUTION: Hot, high pressure fluid may be discharged from the body drain and vent during a “try lever” test. Care must be taken to avoid any bodily contact.

CAUTION: High sound levels may be experienced during the “try lever” test. Wear proper safety equipment and exercise extreme care!

Testing Procedure:

Test at, or near, half of the operating pressure by holding the test lever fully open for at least two seconds to flush the valve seat free of sediment and debris. Then release the lever and permit the valve to snap shut.

If the lift lever does not activate, or there is no evidence of discharge, turn off the equipment immediately and contact a licensed contractor or qualified service personnel.

Proper water level must be maintained within the jacket for the CROWN EP-60 to operate. If the water is below the required level, the kettle will automatically shut off and the LOW WATER signal light will come on. To correct this, follow the procedure below. The kettle must be cool before proceeding.

1. Trip the safety relief valve lever to relieve all pressure from the kettle jacket.

2. At the exterior rear of the kettle jacket, remove the nut from the Air Vent.

3. Insert a funnel into the Air Vent opening and slowly add the indicated amount of clean water for your model from the table below.

4. Replace the air vent nut.

5. Follow the AIR VENTING INSTRUCTIONS.

6. Continue the normal operating procedure of the kettle.

If the water level in the jacket of your CROWN EP-60 is low, use the following table to determine the correct amount of clean water to add. The kettle must be cool before adding water.

If the cooking time is abnormally slow, the issue may be due to air being present in the kettle jacket. To remove the air, follow the AIR VENTING INSTRUCTIONS.

If the kettle will not reach and maintain the green vacuum zone on the Pressure Gauge when cold, a slow leak may have developed in the jacket. Check all fitting connections to the jacket, including the heating element gasket. Tighten or replace if necessary.

Slow cooking time may also be due to a burnt-out heating element. Test the elements and if defective, replace the complete element assembly.

If your CROWN EP-60 will not operate, check the following:

1. Power Supply: Check that power supply is available to the kettle.

2. Water Level: The kettle will not operate if the water level is inadequate in the jacket. Follow the LOW WATER LEVEL instructions.

3. Power Switch/Wiring: Check for a defective power switch or loose wire connections.

4. Thermostat: If the TEMPERATURE indicator light does not come on when the Thermostat Knob is dialed, the malfunction may be a defective Thermostat or a loose wiring connection.

5. Heating Elements: If the TEMPERATURE indicator light does come on when the Thermostat Knob is dialed fully to ’10’, the kettle should eventually reach its maximum temperature (290F) and a pressure of approximately 40 psi (for kettles rated at 50 psi). If it doesn’t, there may be an issue with the heating elements.

6. Contactors: When the kettle is turned ON and the Thermostat Knob is dialed, check that the Contactors are being energized and that power is being made available to the heating elements. Replace defective Contactors if necessary.

If a leak occurs through the valve stem, replace the “O” ring.

If the leak is from faulty sealing between the stem disc and the valve seat, it may be due to dried-on food residue. Clean the dried-on food residue with an extremely fine emery cloth.

If the rubber vulcanized stem piece has been damaged, it must be replaced.

NOTICE: The draw-off valve has a vulcanized rubber coated stem for better sealing. Do not over tighten. This may cause the rubber to pull away from the stem and permanently damage it. This is not covered under warranty.

Check the vacuum/pressure gauge when the kettle is cold. The gauge should be in the green vacuum zone. If it is not, air must be vented (removed) for proper heating. Use the following procedure to vent air:

1. With the kettle empty, place the power switch in the ON position.

2. Set the temperature control thermostat to ’10’. Heat the kettle until the indicator light goes off.

3. Using a 7/16″ wrench, open the bleed vent one full turn for 10 seconds and then close.

WARNING: SCALD HAZARD

Live steam will escape the bleed nut when opened. Stay clear of live steam when performing this operation.

4. Cool the kettle. Check for proper vacuum in the green vacuum zone. If the reading is not low enough, repeat the entire procedure (steps 1 – 4).

The heat transfer fluid (DOWFROST™ HD) inside the jacket of your CROWN EP-60 has the following first aid measures. If potential for exposure exists, refer to Section 8 of the Material Safety Data Sheet for specific personal protective equipment.

Inhalation: Move the person to fresh air; if effects occur, consult a physician.

Skin contact: Wash off with plenty of water.

Eye contact: Flush eyes thoroughly with water for several minutes. Remove contact lenses after the initial 1-2 minutes and continue flushing for several additional minutes. If effects occur, consult a physician, preferably an ophthalmologist.

Ingestion: No emergency medical treatment is necessary.

Notes to physician: No specific antidote. Treatment of exposure should be directed at the control of symptoms and the clinical condition of the patient.