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SB-6E, SB-10E and SB-16E
CONVECTION STEAMER ON AN ELECTRIC BOILER BASE
INSTALLATION – OPERATION – MAINTENANCE
BLODGETT OVEN COMPANY
www.blodgett.com
44 Lakeside Avenue, Burlington, Vermont 05401 USA Telephone (800) 331-5842, (802) 860-3700 Fax: (802) 864-0183
1
S00047 Rev B (12/04)
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IMPORTANT NOTES FOR INSTALLATION AND OPERATION It is recommended that this manual be read thoroughly and that all instructions be followed carefully. 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: Improper installation, operation, adjustment, alteration, service or maintenance can cause property damage, injury or death. Read the installation, operating a
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TABLE OF CONTENTS DESCRIPTION PAGE Important Notes ............................................................................................................. 2 1.0 Service Connections .............................................................................................. 4 2.0 Installation Instructions ........................................................................................... 5 3.0 Operating Instructions .................................................
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1.0 SERVICE CONNECTIONS ELECTRICAL CONNECTION: 1/2" conduit connection to controls. Rating to be as specified on data plate. COLD WATER: 3/8" O.D. tubing at 25-50 PSI(170-345 kPa) S STEAM TAKE-OFF CONNECTION: 3/4"IPS optional to operate adjacent equipment. DRAIN: 2"IPS piped to open floor drain. No Solid Connection. WATER QUALITY STATEMENT Water quality is the major factor affecting the performance of your appliance. If you are unsure of water quality, consult a local water treatment specialist
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2.0 INSTALLATION INSTRUCTIONS Ideally an exhaust system should be located directly above the appliance to exhaust steam and heat generated by the appliance. 1. Set the unit in place and level using a spirit level. 2. Ascertain that a floor drain (open gap) is convenient to the appliance drain. 3. Mark hole locations on floor through anchoring holes provided in flanged adjustable feet. 4. Remove appliance and drill holes in locations marked on floor and insert proper anchoring devices. 5. Set un
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3.0 OPERATING INSTRUCTIONS 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 light on the standard controls, the CSD-1 controls come with 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 val
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3.0 OPERATING INSTRUCTIONS (Continued) 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
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3.0 OPERATING INSTRUCTIONS (Continued) 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
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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
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4.0 PERIODIC MAINTENANCE Never spray water into electric controls. NOTICE: Contact the factory, the factory representative or local service company to perform maintenance and repairs. Refer to warranty terms. 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 fl
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CLEANING 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
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ADJUSTMENTS At least twice a year have an authorized service person clean and adjust the unit for maximum performance. DESCALING BOILER 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/
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TO CALIBRATE PRESSURE SWITCHES NOTE: 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. 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 relea
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5.0 TROUBLESHOOTING DOOR LEAKS 1. Check for damage to door gasket. WATER ACCUMULATES IN THE COMPARTMENT 1. 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 VA
