Related Manuals for Blodgett CB-G Series
Summary of Contents for Blodgett CB-G Series
- Page 1 CB-G SERIES GAS STEAM BOILER CABINETS INSTALLATION – OPERATION – MAINTENANCE BLODGETT OVEN COMPANY www.blodgett.com 44 Lakeside Avenue, Burlington, Vermont 05401 USA Telephone: (802) 658-6600 Fax: (802) 864-0183 S00043 Rev A (5/04)
- Page 2 IMPORTANT NOTES FOR INSTALLATION AND OPERATION It is recommended that this manual be read thoroughly and that all instructions be followed carefully. This manual should be retained for future reference. This is the safety alert symbol. It is used to alert you to potential personal injury hazards.
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Page 3: Table Of Contents
TABLE OF CONTENTS DESCRIPTION PAGE Service Connections 1.0 Installation Instructions 2.0 Service Connections 3.0 Operation Instructions 4.0 Operation Instructions for CSD1 Equipped Units 5.0 Periodic Maintenance 6.0 Adjustments 7.0 Troubleshooting... -
Page 4: Service Connections
SERVICE CONNECTIONS Unless otherwise specified, Field Wire Electrical Connection to be 120 Volts, 60 Hertz single phase with grounding wire. DRAIN: 2"IPS piped to open floor drain. No Solid Connection. COLD WATER: 3/8" O.D. tubing at 25-50 PSI(170-345 kPa) GAS CONNECTION: 3/4"IPS supply line required. Natural Gas : min.7" (178mm) Water Column. Propane : min.11" (279mm) Water Column. STEAM TAKE-OFF: 3/4"IPS. -
Page 5: Installation Instructions
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 in a 24" cabinet base rated at 140,000 or 200,000 BTU, 36" cabinet base rated at 200,000, 250,000 or 300,000 BTU, operational on Natural or Propane gas. - Page 6 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.
- Page 7 WARNING: ELECTRICAL GROUNDING INSTRUCTIONS This appliance is equipped with a three-prong (grounding) plug for your protection against shock hazard and should be plugged directly into a properly grounded three-prong receptacle. Do not cut or remove the grounding prong from this plug. (120V units only). WIRING DIAGRAM FOR APPLIANCE IS LOCATED INSIDE CABINET DOOR.
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Page 8: Service Connections
2.0 SERVICE CONNECTIONS 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 steamer cabinet, requires 3/8" tubing and water pressure of 25-50 psi. A manual shut-off valve must be provided convenient to the appliance;... - Page 9 Contact your gas company for correct supply line sizes. Purge the supply line to clean out any dust, dirt, or foreign matter before connecting the line to the unit. CAUTION: The pipe thread compound used when installing pipes must be a type that is resistant to the action of liquified petroleum or propane gases.
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Page 10: Operation Instructions
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. - Page 11 Safety Valve This valve will release (pop off) if the boiler has too much pressure. Once a week, this valve should be tripped during operation to make sure it functions properly. START UP - BOILER OPERATION WITH STANDING PILOT IGNITION 1.
- Page 12 3. With the gas control valve, power switch and water supply all ON, water begins entering the boiler and gas flows to the pilot: Spark will begin in 2 to 3 seconds. If the pilot fails to light in 90 seconds, the control will provide 100% lockout. If this occurs: Wait 5 minutes, then turn power switch off for one minute before turning power switch back on.
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Page 13: Operation Instructions For Csd1 Equipped Units
4.0 OPERATION INSTRUCTIONS FOR CSD1 EQUIPPED UNITS Initial Start-Up Procedure 1. Open the manual gas shut-off valve. 2. Close the manual blowdown valve, if so equipped. 3. Light the pilot burner. The dial on the combination gas valve has three positions (ON-OFF-PILOT) for manual gas control of main burners and pilot burner. - Page 14 Complete Shutdown Procedure If the appliance is not intended to be operational for a lengthy period of time, shut it down completely. 1. Open the manual blowdown valve, is so equipped. 2. Shut off all supplies of power, gas and water to the appliance. Normal Boiler Operating Cycle Water Fill Cycle On the initial filling of the boiler, the reset switch must be activated to initialize the safety...
- Page 15 Safety Lockout Conditions High Temperature Condition 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 be put in a state of lockout. The “Temperature” pilot light (Red), and the “Standby” pilot (amber), will come High Pressure Condition A high pressure safety switch is installed on the boiler.
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Page 16: Periodic Maintenance
5.0 PERIODIC MAINTENANCE 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. - Page 17 CAUTION: If burner does not shut off during blowdown, immediately discontinue use of appliance and call for service. Continue draining water for about fifteen (15) seconds, from control until water is clean. Manually close valve. Recheck gauge glass. If water level has dropped significantly, wait for the boiler to restore water level and pressure and repeat if necessary.
- Page 18 VENT HOOD Twice a year check the venting system (hood); remove any obstructions; and clean as necessary. BOILER DESCALING INSTRUCTIONS 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. If the boiler is descaled, a new Anode should be installed in the boiler to help extend its life.
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Page 19: Adjustments
6.0 ADJUSTMENTS WARNING: At least twice a year have an authorized service person clean and adjust the unit for maximum performance. 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. -
Page 20: Troubleshooting
7.0 TROUBLESHOOTING WARNING: The boiler and its parts are hot. Use care when operating, cleaning, or servicing the boiler. BURNERS PRODUCE CARBON DEPOSITS 1. Wrong size orifices. 2. Burner air not adjusted properly. 3. Wrong gas supply. 4. Incorrect pressure at supply. PILOT DOES NOT LIGHT 1. - Page 21 BURNER DOES NOT COME ON 1. Gas supply to unit is “OFF”. 2. Manual shut off valve is “OFF”. 3. Power supply is “OFF”. 4. Faulty valve or ignition module. 5. Pilot out. 6. Pilot may require flame adjustment. 7. Water level has not been reached in boiler. Check water supply is on, check water level control.