SB-6G, SB-10G and SB-16G CONVECTION STEAMER ON A GAS FIRED BOILER BASE INSTALLATION – OPERATION – MAINTENANCE BLODGETT OVEN COMPANY www.blodgett.
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.
TABLE OF CONTENTS DESCRIPTION PAGE Important Notes for Installation and Operation ............................................................... 2 1.0 Service Connections ............................................................................................... 4 2.0 Installation Instructions ............................................................................................ 5 3.0 Operation Instructions .......................................................................................
1.0 SERVICE CONNECTIONS ELECTRICAL CONNECTION: 1/2" conduit connection to controls. 120VAC-60Hz-1PH 2 AMPS per compartment or 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. GAS CONNECTION: 3/4"IPS supply line required. WATER QUALITY STATEMENT Water quality is the major factor affecting the performance of your appliance.
GENERAL The gas boiler is designed to ASME Code and approved as a steam heating boiler restricted to operation at pressure not to exceed 15 psi. The gas boiler may be operational on Natural or Propane gas. Boilers have electronic ignition and may have optional CSD1 controls. 2.0 INSTALLATION INSTRUCTIONS UNPACKING 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.
LEVELING AND ANCHORING THE APPLIANCE 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.
WIRING DIAGRAM FOR APPLIANCE IS LOCATED INSIDE CABINET DOOR. EXHAUST FANS AND CANOPIES Canopies are set over ranges, ovens, kettles, etc., for ventilation purposes. It is recommended that a canopy extend 6" past the appliance and be located 6 feet 6 inches from the floor. Filters should be installed at an angle of 45 degrees or more with the horizontal. This position prevents dripping of grease and facilitates collecting the run-off grease in a drip pan, usually installed with the filter.
GAS CONNECTION 1. The data plate on the cabinet door of the boiler indicates the type of gas your unit is equipped to burn. DO NOT connect to any other gas type. Keep the appliance area free and clear from combustible substances. Do not obstruct the flow of combustion and ventilation air. 2. A 3/4" NPT line is provided at the rear for the connection. Each boiler is equipped with an internal pressure regulator which is set at 3.5" W.C. manifold pressure for natural gas or 10.5" W.C. for L.P. gas.
ELECTRICAL CONNECTIONS WARNING: Electrical and grounding connections must comply with the applicable portions of the National Electrical Code and/or other local codes. 120 VAC-60 Hz - Single Phase Make electrical connection to terminal block in rear of unit. A separate 15 amp supply is needed for each unit. Refer to the electrical diagram located inside cabinet on door.
3.0 OPERATION INSTRUCTIONS WARNING: Do not force the gas control knob. Use only your hand to turn the gas control knob. Never use any tool. If the gas control knob will not operate by hand the gas control should be replaced by a qualified service technician. WARNING: Do not disassemble the gas control; it contains no replaceable components. Attempted disassembly or repair may damage the gas control.
1. START-UP - BOILER OPERATION WITH STANDING PILOT IGNITION Open manual gas shut off supply valve and if the appliance has a manual blowdown valve, close it. Open cabinet door and turn ON power switch located on left side. Green pilot light will come on, water will begin to enter boiler and required water level will be reached in about three minutes. Observe water gauge glass to verify.
4.0 OPERATION INSTRUCTIONS FOR BOILERS WITH CSD-1 CONTROLS WARNING: In the event of main burner ignition failure, a 5 minute purge period must be observed prior to re-establishing ignition source. INITIAL START-UP PROCEDURE 1. Open the manual gas shut-off supply valve. 2. Close the manual blowdown valve, if so equipped. 3. Light the pilot burner. The dial on the gas combination valve has three positions (ON - OFF - PILOT) for manual gas control of main burners and pilot burner.
4.0 OPERATION INSTRUCTION FOR BOILERS WITH CSD-1 CONTROLS (Continued) Daily Startup Procedure 1. Close the manual blowdown valve, if so equipped. 2. Examine that the pilot burner flame is burning. If the pilot burner is out, a five (5) minute period of complete gas supply shut off is required before relighting. 3. Open cabinet door and turn “ON” the power switch. The green pilot light will come “ON”. Water will begin to enter the boiler.
4.0 OPERATION INSTRUCTION FOR BOILERS WITH CSD-1 CONTROLS (Continued) Firing Cycle The gas valve is operated by pressure sensing devices. On the initial operation of the boiler, steam generation should reach 11 psi in approximately 15 minutes. At this point the “Operating Pressure” switch will open, closing the gas valve. When pressure drops to 9 psi, the pressure switch closes, the gas valve will open and ignition should occur. Should the pressure rise more than 14.
5.0 OPERATION INSTRUCTIONS 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 cooker must be completed once daily prior to operation (see instruction plate or previous section in this manual for boiler start up procedures). With ready pilot light on, preheat cooker compartment for one minute when the cooker is to be first used for the day or whenever the compartment is cold. 1.
COOKER SECTION (Continued) SHUTDOWN a) To shut down cooking compartment, set timers to their OFF position and leave doors slightly open. b) At the end of the day, the steam supply must be shut off. Details are on boiler instruction plate or previous section of this manual. WARNING: Never spray water into electric controls. NOTICE: Contact the factory, the factory representative or a local service company to perform maintenance and repairs should the appliance malfunction. Refer to warranty terms.
6.0 PERIODIC MAINTENANCE WARNING: Disconnect the unit from the power supply before cleaning or servicing appliance. 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.
IMPORTANT INSTRUCTIONS (Continued) CAUTION: Protect yourself. When flushing control, hot water and steam will flow out of the drain. When flushing control, note water level in gauge glass, allow the boiler to fill if necessary, and also to come up to temperature. Before flushing control, note that water level in gauge glass is within operating range and the boiler pressure is at least 6 psi.
7. Rinse entire unit and dry. DO NOT GET WATER in electrical box or any electrical component. 7.0 ADJUSTMENTS At least twice a year have an authorized service person clean and adjust the unit for maximum performance. BOILER DESCALING INSTRUCTIONS It is recommended that the boiler should be checked every 90 to 120 days for scale build up. Regular maintenance should be carried out at this time. If the boiler has been descaled, a new Anode should be installed in the boiler to help extend its life. 1.
10. Appliance is now ready for use. 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 on pressure switches. Adjust in the following sequence: - High limit pressure switch. - Override pressure switch. - Operating pressure switch.
TO CALIBRATE PRESSURE SWITCHES (Continued) 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. NOTICE: Contact the factory, the factory representative or local service company to perform maintenance and repairs.
8.0 TROUBLESHOOTING DOOR LEAKS 1. Check for damage to door gasket. 2. Compartment drain opening or associated piping may be blocked. WATER ACCUMULATES IN THE COMPARTMENT 1. Compartment drain screen clogged. Remove and clean thoroughly and replace. WATER NOT BEING SUPPLIED TO BOILER 1. Water supply is “OFF”. 2. Defective water fill solenoid valve. 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.
BURNERS PRODUCE CARBON DEPOSITS 1. Wrong size orifices. 2. Burner air not adjusted properly. 3. Wrong gas supply. 4. Incorrect pressure at supply. BURNERS DO NOT COME ON 1. Gas supply to unit is “OFF”. 2. Manual shut off valve is “OFF”. 3. Pilot is out. 4. Power supply is “OFF”. 5. Water level has not been reached. Check water supply and water level control. 6. Pilot may require flame adjustment on option electronic ignition units. 7.
9.0 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 PERFORATED PANS Timer Setting in Minutes Weight Per Pan 10 - 12 3 Dozen 5-6 3 Dozen Claws 4 2 ½ Lb Legs 4-6 4 ½ Lb Lobster Tail, Frozen 6 10 Lb Lobster, Live, 10" - 12" 5 4 Per Pan Salmon Fillets, Frozen, 8 oz Each 5 7 ½ Lb Scallops, Fresh 4 3 Lb 3-5 4 Lb Hard Cooked 15 4 Dozen Soft Cooked 9 - 10 4 Dozen Soft Yolk for Caesar Salad 6-8 4 Dozen 20 15 Lb Breasts (2) 90 6 - 7 Lb Ea.
PRODUCTS TO BE COOKED IN PERFORATED PANS Timer Setting in Minutes Weight Per Pan Brussel Sprouts, Frozen 6 5 Lb Cabbage, Fresh, 1/6 Cut 8 5 Lb Baby Whole, Frozen 8 7 Lb Crinkle Cut, Frozen 7-8 4 Lb 11 9 Lb Frozen 6 4 Lb Fresh 7-8 5 Lb 7 5 Lb Yellow Whole Kernel, Frozen 5 5 Lb Cobbettes, Frozen 8 27 Ears 16-18 80 Ears 10-12 18 Ears 16-18 54 Ears Peas, Green 6 5 Lb Potatoes, Whole Russet 55 10 Lb Chopped, Frozen 17 6 Lb Defrosted 5 6 Lb Fresh Cut 3 2 Lb Squas
