Résumé du contenu de la page N° 1
Installation
Operation
Service Manual
for
Forced Draft Steam
Boilers
BRYAN BOILERS
783 N. CHILI AVENUE, PERU, INDIANA 46970
Telephone: 765-473-6651 / Fax: 765-473-3074
E-Mail: bryanboilers@iquest.net / Internet: www.bryanboilers.com
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INSTALLATION INSTRUCTIONS FORCED DRAFT STEAM BOILERS NOTE: • Please read all of instruction manual before attempting installation. • Insurance and local or state regulatory codes may contain additional or more stringent requirements than those contained in this manual. Installation must conform to these codes and any other authorit
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MINIMUM CLEARANCES NOTE: These boilers are intended to be installed in a room which is large compared to the size of the boiler. They are not intended for alcove installation and are suitable for installation on non- combustible flooring only. 1 D-SERIES F-SERIES CL-SERIES K-SERIES RV, RW & AB SERIES DIMENSION WATER/ STEAM WATER STEAM WATER STEAM WATER STEAM WATER STEAM STEAM OVER /STEAM OVER /STEAM OVER /STEAM OVER /STEAM OVER TO 50# 50# TO 50# 50# TO 50# 5
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1.4 BOILER CONNECTIONS 1.4.1 GENERAL tank. This valve can then be adjusted to Do not run any pipes along the access panel bypass excess pump capacity to better side of the boiler. Maintain clearances as control the boiler feed rate. shown on the dimensional drawing for servicing of the boiler tubes. Provide at least 1.4.4 SAFETY RELIEF VALVE(S) 36" from the gas train and burner, unless a A connection is provided in the top of the larger dimension is indicated on the
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1.5 GAS SUPPLY CONNECTION - FORCED DRAFT UNITS The installation must conform completely to the Drip leg must be installed on gas supply piping. requirements of the authority having jurisdiction, or in the absence of such, requirements shall Consult the local gas utility company for conform in the U.S. to the current National Fuel inspection and authorization of all gas supply Gas Code, ANSI Z223.1-1984, or in Canada to piping and flue connections. the current Installati
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1.6 ELECTRICAL CONNECTION IMPORTANT: All electrical connections must details. conform to the National Electrical Code and to all other applicable State and Local Codes. Forced Equipment Grounding - The boiler must be draft boilers may require a high voltage grounded in accordance with the American connection. See boiler wiring diagram and National Standard Electrical Code, ANSI/NFPA equipment list for #70-1981. 1.7 COMBUSTION AIR SUPPLY IMPORTANT: Positive means fo
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Ventilation Air: In addition to air needed for disposal. The boiler room and the combustion air combustion, sufficient air must be supplied for supply must not be exposed to the fumes. Such ventilation, including air required for comfort and fumes include, but are not limited to, carbon proper working conditions for personnel in the monoxide, hydrogen sulfide, ammonia, chlorine, boiler room. In colder climates, provision should and halogenated hydrocarbons. also be made to he
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FIG. 1.8.1: VENT DESIGN INSTRUCTION - REFERENCES TABLE 1.8.1A: ESTIMATING FLUE GAS VOLUMETRIC FLOW RATE Approximate Flue Gas VOLUMETRIC FLOW RATE (Per 1000 Btu/hr Input) (Multiply factor listed times boiler input in MBH) SCFM Per ACFM Per APPROXIMATE BOILER TYPE 1000 Btu/hr 1000 Btu/hr FLUE GAS INPUT INPUT TEMPERATURE Water & 15# Steam Gas Fired 0.230 0.402 450 F Oil Fired 0.230 0.402 450 F 150# Steam Gas Fired 0.230
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TABLE 1.8.1C: ESTIMATING FLUE GAS EMISSIONS Estimated Emissions (Volumetric Flow Rate Per Million Btu/hr Input) (Multiply PPH listed times boiler input divided by 1,000,000) PARTICULATES NOx CO SOx Hydrocarbons BOILER TYPE PPH per PPM PPH per PPM PPH per PPM PPH per PPM PPH per PPM MMBH MMBH MMBH MMBH MMBH Gas Fired N/A N/A 0.049 50 0.194 200 N/A N/A 0.010 10 Oil Fired 0.020 20 0.068 70 0.018 18 0.286 290 0.004 4 1.8.2 CLEARANCES The vent syst
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1.8.7 ACCEPTABLE VENT TYPES LISTED GAS VENTS installed in accordance with nationally recognized Listed gas vents must be applied only on those building codes or standards. applications for which they are listed. Type B gas vents are NOT listed for use on forced draft MASONRY CHIMNEYS FOR RESIDENTIAL appliance vent systems. APPLICATIO
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1.8.5 VENT CONNECTORS (HORIZONTAL RUNS) CONSTRUCTION Supports should usually be overhead hangers, of Vent connectors may be of any of the acceptable load bearing capacity appropriate for the weight constructions listed in this manual. involved. AVOID UNNECESSARY BENDS LOCATION The vent connector must be installed so as to When the vent connector used for an appliance avoid turns or other construction features which having a draft hood must be located in or pass create
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1.8.6 CHIMNEY & VENT CONSTRUCTION (VERTICAL SECTION) INSTALLATION OF FACTORY BUILT Alternatively, a non-ventilating thimble not less SYSTEMS than 18" above and 6" below the roof (with the Listed gas vents and factory built chimneys must annular space open at the bottom and closed at be installed in accordance with their listings and the top) may be used. the manufacturer's instructions. Vents and venting systems passing through roofs must INSPECTIONS OF CHIMNEYS extend t
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1.8.7 MARKING OF GAS VENTS In those localities where solid and liquid fuels are The authority having jurisdiction must determine used extensively, gas vents must be plainly and whether their area constitutes such a locality. permanently identified by a label reading: "This gas vent is for appliances which burn gas only. Do not connect to incinerators or solid or liquid fuel burning appliances." This label must be attached to the wall or ceiling at a point near wher
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PROTECTION AGAINST BLOCKAGE OR Listed gas vents must be terminated with a listed OBSTRUCTION cap, approved for use with the particular gas The chimney or vent exit design must prevent any vent. possibility of blockage by snow or any other obstruction. Listed vent caps or roof assemblies must have a rated venting capacity no less than the vent. VENTILATING HOODS AND EXHAUST SYSTEMS Single wall vents must terminate in an approved Ventilating hoods or exhaust systems may b
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AUTOMATIC VENT DAMPERS MUST BE PERFORMANCE TEST INSTALLED ONLY BY QUALIFIED SERVICE The automatic vent damper must be tested after TECHNICIANS. FAILURE TO PROPERLY installation to assure its proper and safe INSTALL A VENT DAMPER WILL CREATE A operation. SEVERE HAZARD. AUTOMATIC VENT DAMPERS MUST BE IN THE OPEN POSITION AT ANY TIME THE APPLIANCE MAIN GAS VALVE IS ENERGIZED. 1.8.14 SIZING OF CHIMNEY AND VENT IMPORTANT the gas input. Consult the factory or the local
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be done with 45 elbows and not by provide a relatively constant flue gas velocity "bullheading" directly into the vent connector at through the vent system. Using a constant 90 angles. "Bullhead" connections generally diameter breeching will often result in poor draft cause excessive turbulence and poor draft at the outermost appliances. conditions. On vent connectors serving multiple appliances, the diameter of the piping should be increased at each appliance's entrance
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Table 1.8.15B ALTITUDE CORRECTION FACTOR, F 2 (Multiple factor times sea level input, MBH) Altitude (ft) Factor, F Altitude (ft) Factor, F 2 2 0 to 1999 1.00 2000 1.075 6000 1.247 2500 1.096 6500 1.272 3000 1.116 7000 1.296 3500 1.136 7500 1.322 4000 1.157 8000 1.346 4500 1.180 8500 1.373 5000 1.202 9000 1.399 5500 1.25 10000 1.453 STEP 3: SELECT TRIAL DIAMETER STEP 4: CALCULATE SYSTEM K-FACTOR Determine the NET STACK HEIGHT for the vent. The system "k-factor" acc
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STEP 5: CORRECT EQUIVALENT INPUT FOR SYSTEM K-FACTOR Multiply the equivalent input calculated in Step 2 The capacities listed in Table 1.8.15C are based times factor F from Table 1.8.15E. This step will 3 on a system k-factor equal to 7.5. For any other yield a new equivalent input, I: k-factor, the vent capacity must be adjusted. This I = MBH x F x F x F eq. 15E 1 2 3 is accomplished by adjusting the equivalent input for the system using a k-factor correction factor, Usi
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Stack Table 1.8.15C: Approximate Stack Capacities (MBH) Diam. (Based on Atmospheric Boiler with Draft Hood) (in.) 5 7 10 12 15 20 25 30 35 40 45 50 60 70 80 90 100 125 150 200 6 100 120 140 150 170 200 220 250 270 280 300 320 350 380 400 430 450 510 550 640 7 130 160 190 210 240 270 310 340 360 390 410 430 480 510 550 580 620 690 760 870 8 180 210 250 280 310 360 400 440 480 510 540 570 620 670 720 760 810 900 990 1140 9 220 270 320 350 390 450 510 560 600 640 680 720 79
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Table 1.8.15F: CIRCULAR EQUIVALENTS OF RECTANGULAR BREECHINGS & STACKS WIDTH HEIGHT (INCHES) (INCHES) 6 8 10 12 14 16 18 20 22 24 26 28 30 36 42 48 54 60 6 7 8 8 9 10 10 11 11 12 12 13 13 14 15 16 17 17 18 8 8 9 10 11 11 12 13 13 14 15 15 16 16 15 19 20 21 21 10 8 10 11 12 13 14 15 15 16 17 17 18 18 17 21 22 23 24 12 9 11 12 13 14 15 16 17 18 18 19 20 20 20 23 25 26 27 14 10 11 13 14 15 16 17 18 19 20 21 21 22 22 26 27 29 30 16 10 12 14 15 16 17 19 20 20 21 22 23 24
