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MGB MGB
MGB
MGB MGB
GAS FIRED BOILERS
FOR FORCED HOT WATER
Utica Boilers, • P.O. Box 4729 • Utica, NY 13504
INST INST INSTALLA ALLA ALLATION MANU TION MANU TION MANUAL AL AL AND OPERA AND OPERA AND OPERATING INSTR TING INSTR TING INSTRUCTIONS UCTIONS UCTIONS
INST INSTALLA ALLATION MANU TION MANUAL AL AND OPERA AND OPERATING INSTR TING INSTRUCTIONS UCTIONS
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T T TABLE OF CONTENTS ABLE OF CONTENTS ABLE OF CONTENTS T TABLE OF CONTENTS ABLE OF CONTENTS Safety Symbols & Warnings ........................................................................ Page 2 Installation Procedure .................................................................................. Page 3 Ventilation and Combustion Air .................................................................... Pages 4-6 Connecting Supply and Return Piping ..........................................
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Safety Symbols Safety Symbols Safety Symbols Safety Symbols Safety Symbols The following defined symbols are used throughout this manual to notify the reader of potential hazards of varying risk levels. D D D D DANGER ANGER ANGER ANGER ANGER DANGER - Indicates an imminently hazardous situation which, if not avoided, WILL result in death or serious injury. WARNING WARNING WARNING WARNING WARNING WARNING - Indicates a potentially hazardous situation which, if not avoided, COULD result in death or
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INST INST INSTALLA ALLA ALLATION PR TION PR TION PROCEDURE OCEDURE OCEDURE INST INSTALLA ALLATION PR TION PROCEDURE OCEDURE WARNING: Improper installation, adjustment, alteration, service or maintenance can cause injury or property damage. 1. The installation must conform to the requirements of the authority having jurisdiction or, in the absence of such requirements, to the latest revision of the National Fuel Gas Code, ANSI Z223. (Available from the American Gas Association, 8501 E. Pleasant V
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VENTILA VENTILA VENTILATION & COMB TION & COMB TION & COMBUSTION USTION USTION AIR AIR AIR VENTILA VENTILATION & COMB TION & COMBUSTION USTION AIR AIR WARNING: WARNING: WARNING: WARNING: WARNING: AIR OPENINGS TO COMBUSTION AREA MUST NOT BE OBSTRUCTED. BY FOLLOWING THE INSTRUCTIONS BELOW, ADEQUATE COMBUSTION AIR CAN BE MAINTAINED COMB COMB COMBUSTION USTION USTION AIR REQ AIR REQ AIR REQUIREMENTS UIREMENTS UIREMENTS COMB COMBUSTION USTION AIR REQ AIR REQUIREMENTS UIREMENTS (MINIMUM SQUARE INCHES
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construction, air for combustion and ventilation must be obtained from outdoors or from spaces freely communicating with the outdoors. A permanent opening or openings having a total free area of not less than 1 square inch per 5,000 BTU per hour of total input rating of all appliances shall be provided. Ducts may be used to convey makeup air from the outdoors and shall have the same cross-sectional area of the openings to which they are connected. 4. When air for combustion and ventilation is fr
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FIGURE 3 FIGURE 4 shall be permitted where the equipment has clearances of at least 1 inch from the sides, 1 inch from the back, and 6 inches from the front of the boiler. The opening shall directly communicate with the outdoors or shall communicate through a vertical or horizontal duct to the outdoors or spaces (crawl or attic) that freely communicate with the outdoors. The openings must have a minimum free area of 1 square inch per 3000 Btu per hour of the total input rating of all equipment
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BYPASS PIPING FIGURE 5 FIGURE 6 3. Hot water boilers installed above radiation level must be provided with a low water cut- off device. 4. When a boiler is connected to a heating system that utilizes multiple zoned circulators, each circulator must be supplied with a flow control valve to prevent gravity circulation. 5. Hot water boilers and system must be filled with water and maintained to a minimum pressure of 12 pounds per square inch. 6. Bypass piping is an option which gives the ability to
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PRIMARY SECONDARY PIPING WITH BY PASS FIGURE 8 7. Installation using circulators is shown in figure 9 below. FIGURE 9 8. Installation using zone valves is shown in figure 10 on page 9. 9. For further piping information refer to the I=B=R Installation and Piping Guide. PAGE 8
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FIGURE 10 WARNING: WARNING: WARNING: WARNING: WARNING: ALL INSTALLATIONS OF BOILERS AND ALL INSTALLATIONS OF BOILERS AND ALL INSTALLATIONS OF BOILERS AND ALL INSTALLATIONS OF BOILERS AND ALL INSTALLATIONS OF BOILERS AND VENTING SHOULD BE DONE ONLY BY A QUALIFIED EXPERT AND VENTING SHOULD BE DONE ONLY BY A QUALIFIED EXPERT AND VENTING SHOULD BE DONE ONLY BY A QUALIFIED EXPERT AND VENTING SHOULD BE DONE ONLY BY A QUALIFIED EXPERT AND VENTING SHOULD BE DONE ONLY BY A QUALIFIED EXPERT AND IN ACCORDA
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VENT SY VENT SY VENT SYSTEM MODIFICA STEM MODIFICA STEM MODIFICATION TION TION VENT SY VENT SYSTEM MODIFICA STEM MODIFICATION TION When an existing boiler is removed from a common venting system, the common venting system is likely to be too large for the proper venting of the appliances remained connected to it. If this situation occurs, the following test procedure must be followed: REMOVAL OF BOILER FROM VENTING SYSTEM REMOVAL OF BOILER FROM VENTING SYSTEM REMOVAL OF BOILER FROM VENTING SYSTE
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VENT D VENT D VENT DAMPER INST AMPER INST AMPER INSTALLA ALLA ALLATION TION TION AND INSTR AND INSTR AND INSTRUCTIONS UCTIONS UCTIONS VENT D VENT DAMPER INST AMPER INSTALLA ALLATION TION AND INSTR AND INSTRUCTIONS UCTIONS INSTALLATION INSTALLATION INSTALLATION INSTALLATION INSTALLATION NOTE: Refer to Figure 11for steps 1 - 7. 1. Place Vent Damper on or as close to vent outlet of boiler as possible. See figure 12 below. 2. Remove Vent Damper Motor cover. 3. Remove locknut from connector at the en
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CONNECTING GAS SERVICE CONNECTING GAS SERVICE CONNECTING GAS SERVICE CONNECTING GAS SERVICE CONNECTING GAS SERVICE 1. Connect gas service from meter to control assembly in accordance with ANSI Z223.1 and local codes or utility. A ground joint union should be installed for easy removal of gas control for servicing. A drip leg or trap must be installed at the bottom of a vertical section of piping at the inlet to the boiler. A pipe compound resistant to the action of liquified petroleum gases must
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ELECTRICAL WIRING ELECTRICAL WIRING ELECTRICAL WIRING ELECTRICAL WIRING ELECTRICAL WIRING SEE ADDENDUM " A" FOR WIRING DIAGRAMS AND COMPONENT CODING. Electrical wiring must conform with the National Electrical Code, ANSI/NFPA No. 70-1990 when installed in the United states, the CSA C22.1 Canadian Electrical Code, Part 1, when installed in Canada, and/or the local authority having jurisdiction. WARNING: WARNING: WARNING: 1.When an external electrical source is utilized, the boiler, when WARNING:
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LIGHTING PROCEDURE FOR BOILER WITH LIGHTING PROCEDURE FOR BOILER WITH LIGHTING PROCEDURE FOR BOILER WITH LIGHTING PROCEDURE FOR BOILER WITH LIGHTING PROCEDURE FOR BOILER WITH INTERMITTENT PIL INTERMITTENT PIL INTERMITTENT PILO O OT SY T SY T SYSTEMS STEMS STEMS... INTERMITTENT PIL INTERMITTENT PILO OT SY T SYSTEMS STEMS.. FOR YOUR SAFETY READ BEFORE OPERATING. A. This appliance is equipped with an ignition device which automatically lights the pilot. Do not try to light the appliance by hand. B.
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LIGHTING PROCEDURE FOR BOILER LIGHTING PROCEDURE FOR BOILER LIGHTING PROCEDURE FOR BOILER LIGHTING PROCEDURE FOR BOILER LIGHTING PROCEDURE FOR BOILER WITH CONTINUOUS PIL WITH CONTINUOUS PIL WITH CONTINUOUS PILO O OT T T WITH CONTINUOUS PIL WITH CONTINUOUS PILO OT T FOR YOUR SAFETY READ BEFORE LIGHTING FOR YOUR SAFETY READ BEFORE LIGHTING FOR YOUR SAFETY READ BEFORE LIGHTING FOR YOUR SAFETY READ BEFORE LIGHTING FOR YOUR SAFETY READ BEFORE LIGHTING A. Read the warning at the beginning of the LIGHT
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9. Push in gas control knob or reset button if so equipped, all the way in and hold. Immediately light the pilot with a match. Continue to hold the gas control knob or reset button in for about 1 minute after the pilot is lit. Release knob or button, and it will pop up back up. Pilot should remain lit. If it goes out, repeat steps 5 through 9. * If knob or button does not pop up when released, stop and immediately call a qualified service technician or your gas supplier. * If the pilot will no
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GENERAL INSTRUCTIONS GENERAL INSTRUCTIONS GENERAL INSTRUCTIONS GENERAL INSTRUCTIONS GENERAL INSTRUCTIONS Before seasonal start-up, have a competent service agency check the boiler for soot and scale in the flues, clean the burners and check the gas input rate to maintain high operating efficiency. CA CA CA CA CAUTION: UTION: UTION: UTION: UTION: Label all wires prior to disconnection when servicing controls. Wiring errors can cause improper and dangerous operation. Verify proper operation after
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the mirror positioned above the burners, the flue gas passageways can be checked for soot or scale. The following procedure should be followed to clean the flue gas passageways: 1. Remove the burners from the combustion chamber by raising the burners up from the manifold orifices and pulling toward the front of the boiler. See figure 18 on page 17. 2. Disconnect the vent pipe from the draft hood. 3. Remove the top jacket panel. 4. Remove the combination flue collector and draft hood from the boi
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The burners and pilot should be checked for signs of corrosion, rust or scale buildup. The area around the boiler must be kept clear and free of combustible materials, gasoline and other flammable vapors and liquids. The free flow of combustion and ventilating air to the boiler and boiler room must not be restricted or blocked. It is recommended that a qualified service agency be employed to make an annual inspection of the boiler and heating system. They are experienced in making the inspection
