CROWN ECX-2-24 Electric Cabinet Base Convection Steamer Instruction Manual

CROWN ECX-2-24 Electric Cabinet Base Convection Steamer

Product Information

Electric Cabinet Base Convection Steamer

This is an electric cabinet base convection steamer that comes in four different models: ECX-2-24, ECX-2-36, ECX-10-24, and ECX-10-36. The model number and serial number of the equipment should be noted down for future reference. This product is manufactured by Crown Food Service Equipment, a Middleby Company based in Toronto, Canada.

Description
Models ECX-2 and ECX-10 convection steamers mounted on cabinet base electric boiler. ECX-2 steamer has a pan capacity of 6 (2-1/2”) pans. ECX-10 steamer has a pan capacity of 10 (2-1/2”) pans.

Safety Precautions

Before installing or operating the equipment, all individuals involved in the process should be fully trained and aware of the necessary precautions. The manual contains symbols that alert the user to potentially dangerous conditions. The DANGER symbol indicates immediate hazards that can cause severe injury or death. The WARNING symbol refers to potential hazards or unsafe practices that could result in injury or death. The CAUTION NOTICE symbol refers to potential hazards or unsafe practices that could result in injury, product damage, or property damage. The IMPORTANT symbol refers to information that needs special attention or must be fully understood, even though not dangerous.

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

Important Notes for Installation and Operation

The manual contains important safety information that should be thoroughly read and understood before installing, operating, or servicing the equipment. Improper installation, operation, adjustment, alteration, service, or maintenance can cause property damage, injury, or death. Only qualified personnel should operate, test, and service the equipment. Contact the factory representative or local service company to perform maintenance and repairs. This product is intended for commercial use only and should not be used for household purposes.

• WARNING This is the safety alert symbol. It is used to alert you to potential personal injury hazards. Obey all safety messagesthat follow this symbol to avoid possible injury or death.
• WARNING Improper installation, operation, adjustment, alteration, service or maintenance can cause property damage, injury or death. Readthe installation, operating and maintenance instructions thoroughly before installing, operating or servicing this equipment.
• CAUTION Operating, testing, and servicing should only be performed by qualified personnel.
• NOTICE Contact the factory, the factory representative or local service company to perform maintenance and repairs.
• NOTICE This product is intended for commercial use only. NOT FOR HOUSEHOLD USE.
• NOTICE This manual should be retained for future reference.

It is recommended that this manual be read thoroughly and that all instructions be followed carefully.

Service Connections

SERVICE CONNECTIONS

ELECTRICAL CHARACTERISTICS

Available kW

Model| Standard| Optional
ECX-2-[24,36]| 24| 36, 42, 48
ECX-10-[24,36]| 36| 42, 48
Amps Per Line

kW| Phase| 208V| 220V| 240V| 380V| 415V| 480V
24| 3| 66.6| 63.0| 57.8| 36.5| 33.4| 28.9
36| 3| 99.9| 94.5| 86.6| 54.7| 50.1| 43.3
42| 3| 116.6| 110.2| 101.0| 63.8| 58.4| 50.5
48| 3| N/A| N/A| 115.5| 72.9| 66.8| 57.7

COMPARTMENT PAN CAPACITY, WEIGHT AND CLEARANCE

WATER QUALITY STATEMENT
Water is the essential ingredient in steam equipment, water quality is the major factor affecting the performance of your appliance. Crown Steam Group offers aComprehensive Water Treatment System which exceeds our minimum water requirements. Proof of installation and proper cartridges replacement is required forwarranty coverage. Water supply to Crown Steam Group steamers must be within these guidelines.

• Total dissolved solids …………………..Less than 60 PPM
• Chlorine ………………………..Less than 1.5 PPM
• Total alkalinity ………………………………….. Less than 20 PPM
• pH Factor ……………………..6.8 – 7.3
• Silica ……………………………………………….. Less than 13 PPM

Water that does not meet these standards should be treated with the installation of Middleby’s Water Treatment System. Call 919-762-1000 if you have questions concerning your water meeting this parameters.*Failure or malfunction of this appliance due to poor water quality is not covered under warranty. Reference www.crownsteamgroup.com for complete warranty details and instructions.

DISCLAIMER
Terry System Cartridge Changes / Installation – “2-3 gallons of water MUST be purged at each cartridge change or new installation prior to water supply being fed to the steamer. Failure to do so can result in component damage within the steamer which is not covered under warranty. For additional guidance on proper installation, refer to install documentation provided with each Terry System and Replacement Cartridge Set.”

Specifications

The electric cabinet base convection steamer comes in two standard models: ECX-2-24 and ECX-10-24 with available kW of 24 and 36, respectively. The ECX-2-36 and ECX-10-36 models have an optional kW of 36, 42, or 48. The electrical characteristics of the equipment should be noted before installation.

Product Usage Instructions

Before using the electric cabinet base convection steamer, ensure that all safety precautions have been thoroughly read and understood. Only qualified personnel should operate the equipment.

Installation

The equipment should be installed by qualified personnel who have read and understood the installation instructions in the manual. Improper installation can cause property damage, injury, or death. The electrical characteristics of the equipment should be noted before installation.

General
The steam boiler is designed to ASME Code and approved as a steam heating boiler restricted to operation at pressure not to exceed 15 psi.

Unpacking

• IMMEDIATELY INSPECT FOR SHIPPING DAMAGE
  • Immediately after unpacking, check for possible shipping damage. If the appliance is found to be damaged, save the packaging material and contact the carrier within 15 days of delivery.
  • We cannot assume responsibility for damage or loss incurred in transit.
  • Before installing, verify the electrical rating agrees with the specification on the rating plate.

Location
Position the appliance in its installation location. Check that there are sufficient clearances to service the controls, door swing, etc. Also adequate clearance must be left for making the required supply and drain connections. Allow enough space between any other piece of equipment or wall for service access. Service to the controls may be required on the left and/or right side panels of the cabinet.

Installation Codes and Standards
The appliance must be installed in accordance with:

• In Canada: Provincial and local codes, or in the absence of local codes, with the Canadian Electric Code, CSA C22.1 (latest edition). Copies may be obtained from the Canadian Standard Association, 178 Rexdale Blvd., Etobicoke, Ontario, Canada, M9W 1R3.
• In the U.S.A.: State and local codes, or in the absence of local codes, with the National Electrical Code, ANSI/NFPA- 70 (latest edition). Copies may be obtained from The National Fire Protection Association, Batterymarch Park, Quincy, MA, 02269.

Installation Instructions

Leveling And Anchoring The Cabinet

1. Place appliance in the installation position.
2. Place a carpenter’s level on top of the appliance and turn the adjustable feet to level side-to-side and front-to-back.
3. Mark hole locations on the floor through the anchoring holes provided in the rear flanged adjustable feet.
4. Remove appliance from installation position and drill holes in locations marked on the floor. Insert proper anchoring devices (not supplied).
5. Place appliance back in the installation position.
6. Place carpenter’s level on top appliance and re-level side-to-side and front-to-back.
7. Bolt and anchor appliance securely to the floor.
8. Seal bolts and flanged feet with silastic or equivalent compound.

Electrical Connections

• WARNING Electrical and grounding connections must comply with the applicable portions of the National Electrical Code and/or other local electrical codes.
• WARNING Disconnect electrical power supply and place a tag on the disconnect switch to indicate that you are working on the circuit.
• IMPORTANT Use copper wire suitable for at least 200 degrees Fahrenheit (90 degrees Celsius). The steamer must be grounded. The wiring diagram is located on the inside right hand panel as you face the steamer.

Exhaust Hood
An exhaust system should be located directly above the appliance to exhaust steam and heat generated by the appliance.

Plumbing Connections
WARNING Plumbing connections must comply with applicable sanitary, safety, and plumbing codes.

Water Supply Connection
The incoming cold water supply connection, at the rear of the boiler cabinet, requires 3/8” tubing and water pressure of 25 – 50 psig. A manual shut-off valve must be provided convenient to the boiler; this valve should be open when the boiler is in operation.

IMPORTANT Failure or malfunction of this appliance due to poor water quality is not covered under warranty.

Drain Connection
The appliance drain (2” IPS) should be piped to a floor drain ne ar the boiler (not directly under). There should be no solid drain connection; an “open gap” between the drain pipe an d the floor drain is required.

IMPORTANT
If your equipment was supplied with split water lines and a filter, connect the filter system to the connection marked “BOILER FEED” only. Make a second connection to the “CONDENSER FEED” from a cold and unfiltered water supply.

Operation

1. Turn on the equipment using the power switch.
2. Select the desired cooking mode using the mode selector switch.
3. Set the cooking time using the timer control. The equipment will automatically shut off when the cooking time is complete.
4. Adjust the temperature using the temperature control knob.
5. Load the food into the equipment and close the door securely.
6. The equipment will begin cooking according to the selected cooking mode and time.

Boiler Section
Electrically powered steam generators are available with standard boiler controls or ASME CSD-1 compliant controls. In addition to the ON/OFF power switch and indicator pilot ligh t or the standard controls, the CSD-1 controls have in addition four more indicator pilot lights and a “Reset” switch. Follow the appropriate instructions for each.

Start-up Procedure, Standard Controls

1. Turn on water and power supply to appliance.
2. Close the manual blowdown valve if the units is not equipped with the optional automatic blowdown valve.
3. Open door of cabinet and turn on Power Switch. Pilot light will come ON and water will begin to enter boiler . Once water level has reached the proper operating level as indicated on water gauge glass the heating elements will be energized and heat the water. When steam pressure has reached 11 psi the elements will de-energize and cycle on and off between 9 – 11 psi. The boiler is now ready for steam generation.

Start-up Procedure, CSD-1 Controls

1. Turn on water and power supply to appliance.

2. Close the manual blowdown valve if the units is not equipped with the optional automatic blowdown valve.

3. Open cabinet door and turn “ON” power switch.
   The green pilot light will come “ON.” Water will begin to enter the boiler. When enough water has entered the boiler the (red) “Low Water” pilot will come on for approximately 10 seconds and then the (amber)”Standby” pilot light will come.

4. Press the “Reset” switch to begin boiler operation.
   The “Standby” pilot light will go off and the boiler will begin operation. When steam pressure has reached 11 psi the elements will de-energize and cycle on and off between 9 – 11 psi. The boiler is now ready for steam generation.

Normal Boiler Operating Cycle

• Water Fill Cycle
  On the initial filling of the boiler, units equipped with CSD-1 controls require that the “Reset” switch be pressed to initialize the safety lockout circuit. Once the water in the boiler has reached proper level, the level control will stop the flow of water to the boiler. As water is consumed in the production of steam, the level control will supply and maintain safe water level in the boiler.

• Firing Cycle
  The elements are operated by pressure sensing devices. On initial operation, the boiler should reach 11 psi in approximately 15 minutes. At this point the operating pressure switch will open, de-energizing the elements. When the pressure drops to 9.0 psi, the pressure switch closes, energizing the elements.

• Condensing Drain, (Optional)
  A thermostat is located in the drain assembly and is activated by the temperature of steam. The thermostat operates the cooling solenoid, supplying water to the drain to condense the steam.

• Automatic Blowdown Valve, (Optional)
  If the unit has an automatic blowdown valve, it is activated when the main power switch is turned “ON”. The boiler will drain when the main power switch is turned “OFF.”

Safety Lockout Conditions

• High Temperature Condition, Standard Controls
  A high temperature safety device is installed on the boiler. Should the temperature exceed the limit of this device, the boiler will be shut down. As the temperature returns to a safe level, normal boiler operation will resume.

• High Temperature Condition, CSD-1 Controls
  A high temperature safety device is installed on the boiler. Should the temperature exceed the limit of this device, the boiler will be shut down and switch to a state of lockout. The “Temperature” pilot light (red), and the “Standby” pilot (amber), will come on.

• High Pressure Condition, CSD-1 Controls
  A high pressure safety switch is installed on the boiler. Should the pressure exceed the limit of this device, the boiler will be shut down and switch to a state of lockout. The “Pressure” pilot light (red), and the “Standby” pilot (amber), will come on. Should this device fail to operate, the safety relief valve will open.

• Low Water Condition, Standard Controls
  A low water safety cut off is supplied with the boiler. Should the water level fall below normal operating levels, the boiler will shut down. If the water level is returned to a safe level, normal boiler operation will resume.

• Low Water Condition, CSD-1 Controls
  A second low water safety cut off is supplied with the boiler. Should the water level fall below normal operating levels, the boiler will shut down and switch to a state of lockout. The “Low Water” pilot light (red), and the “Standby” pilot (amber) will come on.

• Shut Down
  Turn off power switch, open manual drain valve. If unit is equipped with automatic blowdown valve, it will open and drain the boiler.

Cooker Section
CAUTION Live steam and accumulated hot water in the compartment may be released when the door is opened.
Start-up procedures for your steamer must be completed once daily prior to operation (see instruction plate or above for boiler start up procedures). With ready pilot light on, preheat steamer compartment for one minute when the steamer is to be first used for the day or whenever the compartment is cold.

1. Close compartment doors and set timer to “1 minute”.
2. When buzzer sounds, set timer to the “OFF” position.
3. Steamer is now ready for cooking.
4. With cooking compartment preheated and ready pilot light on, place pans of food to be cooked into compartment and shut door.
5. Set timer to cooking time desired. Cooking cycle may be interrupted at any time by opening door and resumed again by closing door.
6. When buzzer sounds, it indicates the end of the cooking cycle and that no more steam is entering the compartment. Cooking pilot light will go off and ready pilot light will come on. Buzzer must be shut off by turning the timer to its off position.

CAUTION An obstructed drain can cause personal injury or property damage.
Frequently check that the compartment drain and plumbing is free of all obstructions. Never place food containers, food or food portion bags in the cooking compartment in such a way that the compartment drain becomes obstructed.
IMPORTANT Each compartment is equipped with a removable drain screen. Frequently check the drain screen for accumulation of food particles. Should food particles accumulate against, or clog the drain screen, remove it, clean it thoroughly and then replace it in its original position.

Shut Down

1. To shut down cooking compartment, set timers to their OFF position and leave doors slightly open.
2. At the end of the day, the steam supply must be shut off. Open the door of cabinet base and turn off power switch. Open manual drain valve. If unit is equipped with automatic blowdown valve, it will open and drain the boiler.

Periodic Maintenance

Maintenance should only be performed by qualified personnel who have read and understood the maintenance instructions in the manual. Contact the factory representative or local service company to perform maintenance and repairs.

WARNING Disconnect the unit from the power supply before cleaning or servicing appliance.
CAUTION SCALD HAZZARD. Protect yourself. When flushing control, hot water and steam will flow out of the drain.
NOTICE Contact the factory, the factory representative or local service company to perform maintenance and repairs. Refer to warranty terms.

IMPORTANT INSTRUCTIONS
Be sure to flush your boiler water level control daily. Failure to follow this procedure can cause the control to malfunction resulting in serious boiler damage.

The Boiler Water Level Control installed on your boiler requires periodic maintenance. As boiler water circulates into the float chamber, sand, scale and other sediment may be deposited in the float chamber. While the chamber has been designed with a large accumulation bowl, it is necessary to flush the sediment from the chamber by blowing down the control so that the accumulation of sediment does not interfere with the movement of the float in the control. Control must be flushed at least once a day.

Descaling Boiler
CAUTION Take extra caution when blowing down water level control or tripping safety valve as extreme hot water and live steam are present.

It is recommended that the boiler be checked every 90 to 120 days for scale build up. Regular maintenance should be carried out at this time.

1. With boiler empty, close manual blowdown valve. If appliance is equipped with automatic blowdown, turn water supply OFF to appliance. Turn power switch ON. This will energize and close the blowdown valve.
2. Remove 3/4” pipe plug from fitting on left front of boiler.
3. Insert appropriate hose or tube through fitting and pour in (1/2) half gallon (US) of CLR Descaling Solution or use the Optional Deliming Assembly DPA-1 available from your dealer.
4. Replace 3/4” pipe plug securely.
5. Open water supply to appliance allowing water to fill boiler to required level.
6. Let appliance cycle. Allow two hours for descaling and cleaning. DO NOT TURN ON STEAM to the compartments.
7. Open both the blowdown and low water level control valves for complete drainage and then close both valves.
8. Turn appliance switch ON. When boiler is completely filled turn power switch OFF. This will rinse and drain boiler. Appliance with manual blowdown valve must be opened to drain.
9. Complete Step 8 twice to assure boiler is completely rinsed.
10. Appliance is now ready for use.

Adjustments
IMPORTANT At least twice a year have an authorized service person clean and adjust the unit for maximum performance.

To Calibrate Pressure Switches
NOTICE Pressure switches are factory set. Calibration is only required if pressure switches are replaced or if adjustment is required. Pressure switch range is from 1 to 15 psi.
Adjust all settings to maximum on high signal adjustment screw on pressure switches. Adjust in the following sequence:

• High limit pressure switch.
• Override pressure switch.
• Operating pressure switch.
• Turning screw clockwise to increase, counterclockwise to decrease pressure.
• Use relief valve to release pressure from boiler for setting adjustments.

1. HIGH LIMIT PRESSURE SWITCHES
   Allow pressure to build until unit shuts off. This should occur at 15 psi. Set the high signal to switch at 14.5 psi on the gauge and the low signal to 13.0 psi.

2. OVERRIDE PRESSURE SWITCHES
   Allow pressure to increase to 13 psi. Set the high signal to switch at 13 psi on the gauge and the low signal to 11 psi.

3. OPERATING PRESSURE SWITCHES
   Set the high signal to switch at 11 psi on the gauge and the low signal to 9 psi.

4. Release pressure in boiler to below 9 psi. Elements will come on. Once pressure has reached 11 psi, elements will shut off. Repeat this process several times to make sure elements come on at 9 psi and shut off at 11 psi.

Once completed, pressure switches have been calibrated. Should your unit not have the High Limit pressure switch, start procedure at Override pressure switch.

Service
Contact your local authorized service office for any repairs or adjustments needed on this equipment.

Cleaning

WARNING Disconnect the unit from the power supply before cleaning or servicing appliance.
WARNING Never spray water into electric controls.
CAUTION Do not use cleaning agents that are corrosive.
CAUTION Live steam and accumulated hot water in the compartment may be released when the door is opened.

1. Keep exposed cleanable areas of unit clean at all times.

2. Thoroughly wash oven cavities, door liners, and pan racks at the end of each day or as required with a mild detergent and water to prevent bacterial growth and odours.

3. Remove drain screens from inside compartment drains. Using a plastic bottle brush and mild detergent, clean inside the drain opening ensuring there is no food residue or blockage. Clean the drain screen and replace in its original position.

4. Wash gasket sealing surface with mild detergent to remove harmful food acids and rinse.

5. Water level control should be opened daily to blow down sediment and scalant.
   CAUTION Take extra caution when blowing down water level control or tripping safety valve as extreme hot water and live steam are present.

6. Observe that the water in gauge glass is clean and clear. Extreme murkiness in water indicates inadequate water quality.

7. Safety valve should be tripped during operation once a week to assure that it functions properly.

8. Keep all exposed cleanable areas of unit clean at all times. DO NOT GET WATER IN ELECTRICAL BOX OR ANY ELECTRICAL COMPONENTS.

Troubleshooting

NOTICE Contact the factory, the factory representative or local service company to perform maintenance and repairs. Refer to warranty terms.
NOTICE At least twice a year have an authorized service person clean and adjust the unit for maximum performance.

Door Leaks
Check for damage to door gasket.

Water Accumulates In The Compartment
Compartment drain screen clogged. Remove and clean thoroughly and then replace.

Water Not Being Supplied To Boiler

1. Water supply is “OFF”.
2. Defective water fill solenoid.
3. Water level control clogged or defective, unable to operate fill valve.
4. Check drain valve is closed. Also check that water level control valve is closed.
5. Supply water pressure too low.

Automatic Blowdown Valve Does Not Drain

1. Defective Blowdown valve.
2. Heat exchanger build up of scalant clogging drain lines and valve.

Boiler Achieves Pressure Slower Than Normal

1. Heavy build up of lime on elements.
2. Loose element connections.

Safety Valve Blows

1. Defective safety valve.
2. Pressure too high. Pressure switch requires adjustment (lower) or may be defective.

COOKING CHART

The following table lists suggested cooking times and weights. These times, which will vary depending on initial product temperature, size, shape, etc., are approximate and should be adjusted to suit your operation.

PRODUCTS TO BE COOKED IN SOLID PANS

Asparagus Spears

Frozen Fresh

| 10 – 12

5

| 3 Doz.

5 lb.

Beans

Green, 2” Cut, Frozen/Fresh

Lima, Frozen

Baby Lima, Frozen

| 6

8

5

| 5 lb.

5 lb.

5 lb.

Broccoli

Spears, Frozen Spears, Fresh Florets, Frozen

| 8

6

6

| 4                                     lb.

5                                     lb.

5 lb.

Brussel Sprouts, Frozen| 6| 5 lb.
Cabbage, Fresh, 1/6 Cut| 8| 5 lb.
Carrots

Baby Whole, Frozen Crinkle Cut, Frozen Sliced, Fresh

| 8

7 – 8

11

| 7 lb.

4 lb.

9 lb.

Cauliflower, Flowerettes

Frozen Fresh

| 6

7 – 8

| 4                                     lb.

5                                     lb.

Celery, 1” Diagonal Cut| 7| 5 lb.
Corn

Yellow Whole Kernel, Frozen

Cobbettes, Frozen Corn-On-Cob, Fresh

| 5

8

16 – 18

10 – 12

16 – 18

| 5 lb.

27 Ears

80 Ears

18 Ears

54 Ears

Peas, Green| 6| 5 lb.
Potatoes, Whole Russet| 55| 10 lb.
Spinach

Chopped, Frozen Defrosted

Fresh Cut

| 17

5

3

| 6 lb.

6 lb.

2 lb.

Squash, Acorn Halves| 25| 10 Halves
Zucchini, Slices| 8| 10 lb.
Frozen Mixed Vegetables| 6 – 7| 5 lb.
Fruit, Blanch for Peeling, Grapefruit Oranges| 3|
Pineapple, Whole for Cutting| 4|

A product with the Crown name incorporates the best in durability and low maintenance. We all recognize, however, that replacement parts and occasional professional service may be necessary to extend the useful life of this appliance. When service is needed, contact a Crown Authorized Service Agency, or your dealer. To avoid confusion, always refer to the model number, serial number, and type of your appliance.

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

CROWN FOOD SERVICE EQUIPMENT
A Middleby Company
70 Oakdale Road, Downsview (Toronto) Ontario, Canada, M3N 1V9
Telephone: 919-762-1000
www.crownsteamgroup.com

References

• Crown Steam – Steam Cooking Solutions

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