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Burnham 8H/8HE Owner's Manual

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2. Fig 1 1 Complete Combustion of Natural Gas 10 2 Confined Space Ventilation From Inside Building 11 3 Confined Space Ventilation From Outdoors 11 4 Unconfined Space Ventilation From Outdoors 12 5 Constant Diameter Manifold Vent 13 6 Graduated Diameter Manifold Vent 14 7 Individual Vents u uu anus kayana 15 SECTION 2 0 VENT DESIGN uu u uwawan 1 Fig 2 1 Input vs Gross Output vs Net Rating 18 2 Recommended Number of Modules 19 3 Input and Dimensional Data 20 4 Tapered Manifold 21 5 Constant Diameter Manifold Vent 21 6 Dual Takeoff Constant Diameter Manifold Vent 22 7 Dual Takeoff Tapered Manifold Vent 22 8 9 Constant Diameter Vent 23 10 Minimum Installation 24 11 Free Area of Ventilation 24 12 Indi
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6. 66 7 Tekmar 268 Two Stage for Parallel Piping 67 8 Tekmar 268 Two Stage for Primary Secondary Piping 68 SECTION 6 0 START UP AND 69 CAUTION Series 8H 8HE Boilers are NOT suitable for direct installation on combustible flooring Refer to the 8H 8HE Installation Operating and Service Instructions Part Number 81416021 for Installation Instructions for Floor Shields that are available and required for combustible floor installations 1 1 1 2 1 3 SECTION 1 0 COMBUSTION VENTILATION amp VENT SYSTEMS INTRODUCTION The basic principles of combustion or burning of a gaseous fuel should be reviewed briefly in order for the reader to appreciate the necessity of 1 providing adequate ventilation for replacement of air consumed during the combustion process and the replacement of air carried out with the products of combustion and 2 providing a properly designed vent system that will effectively convey the gases produced during the burning process to the outside atmosphere along with any air diluting the flue gases COMBUSTION In order for combustion or burning to take place three things are needed 1 Fuel in this case natural gas or propane 2 Oxygen oxygen is obtained from the air which is approximately 20 oxygen and approximately 80 nitrogen Nitrogen is inert and will no
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8. W ex Ee e HOLIMS KP wa INJA MOE sp a 5 de Az o 2 moraes mo e sus HouMs L SP 1no T103 6 sivas II AlgWassv TINQON 101ld STI 4 yaMod A0ZL 4 atoN 535 M3dAva e ION 315 SSANHVH ONIXIM dddMVd IN3A Joooy qog0m YAOS LAKE IG gt ONINIM L 471108 3godd OL 41 An 350 172 yalvM MOT 3900471 TISMA3NOH HOLOVINOO HO 3 ISN 5 dAv dAnd 3 X ON 9 ON S ON t ON 2 ON Z ON aioa aioa aioa aioa aios saog de be 4 dg OZL IN 4OSZ WN Vv asn 4 WALSAS NOUS TvNSIS lV3H NOLLVINSNI TIN HUM 9901 WMV NGL 34 IAIM 8 AOZL 9801 3NVHIS WMV NGL 3dAL 9Mv 8 3zis 39 MOT JAM WAW NGL YO ML OMW T 3215 3 INN SONILLIS IOMINOO MO4 TOMINOO HLIM SYNHOONE 8964 UVWHAL 335 w Q3uinosH Sv NOLLOALOA SNv3 103NNOOSIQ Xlddns YaMOd Y ond dddAn HUM q3ovid3H SSANHVH ONIMIM M3dAVGO INJA XINO IN3A 5537 13108 404
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12. ONY SNIHSVH 3QIAO3d 14 OL NVHL 331V349 SI V 14 OL NYHL SS31 SI NOISNIWIQ 4 14 Z NOISNSWIG JI NIN 4 Z 1 i dVO IN3A dd 1SI1 IN 14 Z V S1INGOW LH9I3 OML 5 1 SNIN dO 3 131NI 1H9I3H AH1S dllddf1S dOOHILHVdd HILIV LON Od MOTI 53009 901 SNOILIGNOO 315 gor 343HM 0338341844 SI WALSAS GL 1HOI3H IN3A 53309 TVOO LINSNOO 1N A HOV3 404 gvT109 WHOLS ONIHSVI4 3Q01AOHd OL NVHL 3341339 SI V NOISNAWIQ 3l H 6 14 OL NVHL 5531 SI V NOISN3NIG 31 NIN 7134 2 dVO INJA 15 SECTION 2 0 VENTS ADANGER Inspect existing chimney before installing boilers Failure to clean or replace perforated pipe or tile lining will cause severe injury or death 2 1 Vents or breeching ducts are generally less flexible in design location than are water pipes gas pipes or electrical lines To avoid conflicts for a given location design and layout the vents in this section before proceeding to other sections of this manual 2 2 Obtain a scaled drawing of the boiler room Note the floor size ceiling height exterior walls and chimney location if provided 2 3 Determine the input required to the system It is recommended that the heating load be determined by an
13. Pressure should be approximately 3 water column for natural gas Adjustment of gas pressure can be made by turning regulator 69 adjusting screw counterclockwise to decrease manifold pressure gas rate or clockwise to increase Adjustment of Regulator must be within limitations set forth bv Gas Supplier If necessarv to increase or decrease manifold pressure more than 0 3 water for natural gas to provide rated input remove orifice plugs installed in burner manifold and a Increase orifices one 1 drill size larger to reduce manifold pressure to that recommended or b Replace orifices with one 1 drill size smaller to raise manifold pressure to that recommended c Reinstall orifice plugs and recheck input rate 5 After adjusting manifold pressure to that recommended make a final check on input bv clocking the gas meter Only the gas boiler should be in operation make sure that all other gas appliances connected to the same meter are not operating Check the gas consumption indicated by the gas meter for three minutes for conformitv to that required and as determined by the following formula Gas Input Cu Ft per 3 minutes Input Btu hr Heating Value of gas Btu Cu Ft x 20 NOTE In the above formula Input Btu hr is that shown on the Boiler rating plate and heating value of gas Btu Cu Ft must be obtained from the local gas companv Boiler Model Number 6 6 6 7 LE Input for S Section Boil
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15. these substances become airborne and if inhaled may be hazardous to your health AVOID Breathing Fiber Particulates and Dust Precautionary Measures Do not remove or replace RCF parts or attempt any service or repair work involving RCF without wearing the following protective gear 1 A National Institute for Occupational Safety and Health NIOSH approved respirator Long sleeved loose fitting clothing Gloves Eye Protection Take steps to assure adequate ventilation Wash all exposed body areas gently with soap and water after contact Wash work clothes separately from other laundry and rinse washing machine after use to avoid contaminating other clothes Discard used RCF components by sealing in an airtight plastic bag RCF and crystalline silica are not classified as hazardous wastes in the United States and Canada First Aid Procedures e If contact with eyes Flush with water for at least 15 minutes Seek immediate medical attention if irritation persists If contact with skin Wash affected area gently with soap and water Seek immediate medical attention if irritation persists If breathing difficulty develops Leave the area and move to a location with clean fresh air Seek immediate medical attention if breathing difficulties persist Ingestion Do not induce vomiting Drink plenty of water Seek immediate medical attention LIST OF FIGURES PAGE SECTION 1 0 COMBUSTION VENTILATION VENT SYSTENS
16. 0 262 so 87 SQ 320 SQ 385 SQ AREA OF TYPICAL MASONRY FLUE TILES FIGURE 2 16 30 SECTION 3 0 WATER PIPING WARNING Burnham Commercial recommends maintaining temperature differential drop across the svstem at 40 F or less and return water temperature at minimum of 135 F CONTINUED BOILER OPERATION FOR PROLONGED PERIODS OF TIME UNDER CONDITIONS WHEN TEMPERATURE DIFFERENTIAL ACROSS THE SVSTEM EXCEEDS 40 F AND OR RETURN WATER TEMPERATURE STAYS BELOW 135 F MAY RESULT IN PREMATURE BOILER FAILURE DUE TO FLUE GAS CONDENSATION AND OR THERMAL SHOCK IF THE ABOVE CONDITIONS EXIST TO PROTECT ABOILER FROM SUSTAINED FLUE GAS CONDENSATION AND OR THERMAL SHOCK THE ABOVE RECOMMENDED TEMPERATURES MAY BE MAINTAINED BY EMPLOYING COMMON INDUSTRY ACCEPTED MIXING METHODS TO PROVIDE BOILER PROTECTION Some common methods are boiler by pass piping blend pumps primary secondary piping with a by pass mixing valves and or variable speed injection pumps Z WARNING Pressure relief valve discharge piping must be piped such that the potential of severe burns is eliminated DO NOT pipe in any area where freezing could occur DO NOT install any shut off valves plugs or caps Consult Local Codes for proper discharge piping arrangement 3 1 Breeching ducts are generally less flexible in design location than are water pipes To avoid conflicts for a given location design and layout the breeching ducts before proceeding with
17. 1 0 1 3 1 6 1 9 2 0 COMPRESSION TANK SELECTION TABLE CAPACITY IN GALLONS To use this table 1 Enter left hand column at water volume of the system 2 Move to the right to the maximum water temperature of the system 3 Read the uncorrected tank size 4 Proceed to Figure 3 10 FIGURE 3 9 LL 34N914 ZL 91 6 1 o Mue d y jo oouejdoeooe JU pui o 5 9U Aq 10306 uoisuedxe ou 2 Apoo1ip 10198 uoisuedxe JU onjeJeduio W9 SAs 104 L ejqe S14 esn OL HILVM SHOLOVA NOISNVdX LAN 8 40 OYZ 4660 0LZ 6160 08L 79L0 OSL 600 OZ 21 0 OEZ vS 0 00Z LEZO 021 EELO OVL 700 OLL 9 v0 0ZZ L 0 061 06LO 09L ELLO OEL 0900 00L 3 09 uo peseg 193eM S O OB UOISUBdx JON OL dTDH ezis YUL UOISSSJdUIOO P9JJ94109 9U UIEJQO o 6 91N6I4 PUNOJ ezis 118 DS1O9JJOooun u Aq 10 2e uonoeJd109 p 30198 uOI1O9J o peay c inss id uu s s JU DSDBSU uuinjoo 0 13uBu eu Z 91 559 4 jenu ye UUUnIO2 puey 9 193u3 L 68 siu 9Sn OL NOILO3T3S MNVL NOISS3 IdINOO HOLOV4 NOILIJHHOD uo Jeijes uo einsseiJd jeru snuiu ALA Jolley 9v gt
18. 3 2 1 3 1 FIGURE 2 2 19 4H 2 5 1cm 32 5 82 4 PIPING SHOWN IN HIDDEN LINES NOT SUPPLIED MANUFACTURER VENT DAMPER IF USED SAFETY RELIEF VALVE 2 MPT SUPPLY TEMPERATURE PRESSURE GAUGE 10 0cm MANUAL GAS TOP VIEW SHUT OFF VALVE 2 324 82 6cm i 11 4 6 LEFT SIDE VIEW FRONT VIEW Dimensions inch Recommended Water Approx Boiler Model mp Chimney Size Content Shipping A C Round Gallons Weight LB Past se asa mre s orse m saxe mo Faure so 242 aa s zas ja emxee me so Fever Mo aria ese o sonne zo amxtsm sm 1 Special base required for installations on combustible flooring adds 4 3 4 to boiler height floor to jacket top panel is 37 1 4 2 Gas connection size 1 NPT 3 Maximum Allowable Working Pressure 50 psi Water Only 4 Items shown in hidden lines supplied by installer FIGURE 2 3 20 MAX DISTANCE IS JOFT OR TA OF H WHICHEVER IS GREATER VENT B CONNECTOR SPACING PLAN VIEW DUAL TAKEOFF TAPERED MANIFOLD VENT SYSTEM HCV BASED ON TOTAL BOILER INPUT 7 MODULES IN THIS ILLUSTRATION CV BASED ON TOTAL BOILER INPUT TO THIS SECTION OF MANIFOLD 4 MODULES IN THIS ILLUSTRATION VIEW BASED ON TOTAL BOILER INPUT TO THIS SECTION OF MANIFOLD 2 MODULES IN THIS I
19. 40 drop Enter Figure 3 5 on the horizontal line for 500 mill inches per ft and read across to the right to the vertical lines for 100 gpm 66 7 gpm and 50 gpm On the slanted lines read the corresponding pipe sizes use the larger if between two pipe sizes 100 gpm 3 Pipe 66 7 gpm 2 2 Pipe 50 gpm 2 7 Pipe Figure 3 6 can be used in a similar manner for copper pipe The size of the terminal units baseboard convectors fan coils etc must be adjusted according to the actual temperature of water flowing in those units In general the first terminal unit on a circuit will receive hotter than average water and should be undersized and the last terminal unit will receive cooler than average water and should be oversized The designer should consult a sizing procedure such as that contained in the ASHRAE Guide or I B R Guide 250 It should be noted that the selection of system temperature drop has no effect on the sizing of the boiler 3 4 4 On remodeling jobs it is generally too expensive to 3 5 modify the terminal units for temperature drops other than that used by the original system designer It is not safe to assume that the original design was based on 20 F drop and thus the owner s records should be consulted MAIN PIPING Selection of Main Size and the system pump must go together The system designer 3 6 can select the pump and size the pipe accordingly but more often the best economic
20. 9v 9v 6v 9 GG 68 c9 99 g OL SSe9 OUI 9oJnssaJg tuu s S JJQEMOJIV uo 91 558 46 ACCEPTANCE FACTOR ACCE T i4 eae 0 4 Fi 4 7o xu fne rr ILL LE wipes iksi es FINAL PRESSURE PSIG NOT NECESSARILY RELIEF VALVE SETTING ACCEPTANCE FACTORS FOR DIAPHRAGM TYPE TANKS To use this Figure 1 Enter the horizontal scale at the final system pressure 2 Move up vertically to the curved line for the initial charge pressure 3 Read the acceptance factor on the vertical scale 4 Divide acceptance volume from Figure 3 11 by the acceptance factor to obtain diaphragm type tank volume FIGURE 3 12 Module Size 805 34 4 11 9 806H 42 6 13 9 807HE 50 8 15 9 808HE 59 0 17 9 809HE 67 2 19 9 810HE 75 4 21 9 MODULE DATE WATER SIDE FIGURE 3 13 ACCEPTANCE FACTOR 47 RECOMMENDED WATER PIPING FOR DOMESTIC WATER HEATER REAR VIEW SERIES 8H y MODULAR BOILERS Pi s L408iB AQUASTAT WATER HEATER CIRCULATOR CHECK VALVE TYP INSTALL IF ADDITIONAL MODULES ARE NEEDED FOR WATER HEATING DO NOT BLOCK PASSAGEWAYS NOR ACCESS TO TOP AND FRONT JACKET PANELS FIGURE 3 14 48 Giaa umen ow
21. CAPABLE OF CLOSURE 11 2 support of common vent where it passes thru a 9 proper termination of vent connection at masonry ceiling or roof chimney vent should enter chimney at a point 3 clearances to combustible material use of above the extreme bottom of chimney vent thimbles should be flush with inside of chimney and sealed see Fig 1 5 10 never connect a gas vent to a chimney serving a fireplace unless the fireplace has been permanently sealed 4 firestops 5 flashing and storm collars 6 guying or bracing of common vent pipe above roof 7 securing and gas tightness of joints i 11 never pass any portion of a vent system thru a 8 lightning arrester if top of metal vent is one of the circulating air duct or plenum highest points on the roof dp OUTSIDE TEE CAP OPENINGS FOR VENTILATION IF TIGHT CONTSTRUCTION AIR GAP 1 SQ IN PER 5000 BTU HR OF TOTAL INPUT OF APPLIANCES 34 FT MIN SCREENED OPENINGS MESH NOT LESS THAN INCH SHALL NOT BE CAPABLE OF CLOSURE CLEANOUT UNCONFINED SPACE TIGHT CONSTRUCTION VENTILATION AIR PROVIDED FROM OUTDOORS FIGURE 1 4 12 INTI 9 dTOI S1INGOW LH9I3 HONOYHL OML ONIHO33 8 YO LN3A LINVLSNOO NOILA1TIQ SNIN dO 43 44 ddllddr1S QOOHL VHAG LON OG QOOHL VAQ
22. Internal Length of Pipe Feet Iron Pipe sizo in 10 20 4o so eo so 100 125 150 175 200 32 22 18 15 14 12 11 11 10 9 8 8 7 6 5 400 5 100 4 500 4 100 MAXIMUM CAPACITY OF PIPE FTS HR Based on gas pressure at 0 5 psig pressure drop of 0 3 water column and 0 60 specific gravity TO USE THIS TABLE 1 ENTER THE TOP ROW AT THE TOTAL EQUIVALENT LENGTH OF PIPE OBTAINED FROM 4 4 1 1 2 MOVE DOWN TO THE EQUIVALENT GAS FLOW OBTAINED FROM 4 4 1 3 3 MOVE ACROSS TO THE LEFT HAND COLUMN 4 READ THE REQUIRED PIPE SIZE FIGURE 4 5 Specific Gravity Multiplier Specific Gravity Multiplier 35 763 CORRECTION FACTORS FOR SPECIFIC GRAVITY OTHER THAN 60 To use this table 1 Read directly the multiplier for the specific gravity of the gas to be used 2 Multiply actual gas flow rates by this multiplier to obtain equivalent flow rates for 60 specific gravity gas 3 Enter Figure 4 5 with these equivalent gas flow rates to determine gas pipe sizes FIGURE 4 6 57 Size of Pipe Inches Spacing of Supports Feet 2 E e EM quc O 1 or larger vertical Every floor level SUPPORT OF PIPING FIGURE 4 7 TEE SHORT CONNECTION RE MODULE IPPLE LENGTH AS PRESCRIBED BY GAS SUPPLIER CAP ALL PIPE AND FITTINGS TO BE SIZED ACCORDING TO MODULE SUPPLY PIPE SIZE MOISTURE AND DIRT TRAP FOR GAS SUPPLV TO EACH MODULE SERIES 8H 8HE MODULAR GAS BOILER
23. VOVNVO v ond HIM G30VId34 SS3NNVH ONIMIM M3dAVO LINJA AINO d dAYd INIA SS3 431108 303 018 908 ST3dOA NO TYNOILdO TICON NO G3NInO3H INIA V S N vj naHL INSIWANDA SLI YO NMOHS SV 3BIM HIM 38 ISnW LI HIIOB OL q30vidad 38 1SNW 3ONVIIddV 3HL HUM SV JAIM TYNIOINO JHL 40 ANY dl HM A9 1n0 TIOM EA EE M3dAVQ INIA z 310N 33s EERI 1N3A sas SS NavH ONI IM 3HdAVO INIA V900v1 0080v1 TI3MA3NOH qasn 4 390071 TI3MA3NOH XIEWASSV adNand 1018 xog SN 6 IM JINQON NOLLIN I L 33108 SdNV Ayad dAV 4 AvT3M 351 mms 1 1 1 41 WALSAS 3 TWNOIS QNVW3Q 1waH M3AHOJSNVML II Ssvio OSN3S 1 Xidens VAOS UJWAOJSNVAL el EC HOLIMS 330 170 831VM MOT OZL IN dOSZ WN 380Md OL 94 ob LNO NOO
24. connected to the flue outlet of the boiler and the exit or outlet opening of the drafthood is connected to the riser portion of the vent connector The inlet and exit diameter and the stem height of the drafthood are a function of boiler size since they were determined only after extensive testing and after certification by the American Gas Association and by the Canadian Gas Association Therefore THE DRAFTHOOD MUST NOT BE ALTERED IN ANY MANNER 1 4 2 VENT CONNECTOR see Fig 1 5 The vent connector is that portion of the vent system which connects the exit outlet of a drafthood of an individual appliance to the manifold vent breeching servicing two or more boilers If there is a horizontal run in the vent connector this horizontal run is known as a lateral Since the vent connector may enter the bottom or the side of the manifold vent the vent connector rise is the vertical distance from the drafthood outlet to the lowest level at which the connector enters the manifold A slip joint or drawband as illustrated in Fig 1 5 will facilitate installation of connectors as well as replacement of parts in that portion of the system should it ever become necessary 1 4 3 MANIFOLD AND COMMON VENTS see Figs 1 5 1 6 A manifold vent or breeching 1s a horizontal extension of the vertical common vent The common vent which is sized to handle the total load when all modules are operating can be of masonry construction single wall meta
25. gt L lt y LI aa FRICTION MILINCHES PER FOOT OF TUBE HIG ed D NI H4 PA gt 4H 08 K n E m P a 8 8 HEAT CONVEYED PER HOUR MBH WITH 20 F TEMPERATURE DROP FRICTION VS WATER FLOW COPPER PIPE To use this Figure 1 Enter horizontal scale at desired flow 2 Move down vertically to upper limit of unshaded area 3 Pick off minimum pipe size on diagonal lines sloping upward to the right 4 Pick off water velocity on diagonal lines sloping upward to the left FIGURE 3 6 Pipe Size d soo Z ey Pipa does ere u ps 5 1 14 12 2 2 8 13 4 5 6 8 10 12 1 2 1 7 2 2 3 0 3 5 4 5 5 4 6 7 7 7 86 EQUIVALENT LENGTH OF PIPE FOR 90 ELBOWS To use this table 1 Enter left hand column at desired water velocity 2 Move horizontally to the right to the right to the column headed by the desired pipe size 3 Read the equivalent length of pipe for each 90 elbow to be added to the measured length at the piping circuit FIGURE 3 7 se 1 2 5 s s ez VOLUME OF WATER IN STEEL PIPE AND COPPER TUBE GAL FT TO USE THIS TABLE 1 ENTER LEFT HAND COLUMN AT DESIRED TYPE OF PIPE 2 MOVE TO THE RIGHT TO THE DESIRED PIPE SIZE 3 READ THE RESULTING GALLONS PER FOOT OF PIPE FIGURE 3 8 Water Vol Mean Design Water Temperature F 0 6 0 8
26. move down to 200 gallons which is the next largest value to 153 5 gallons Read across to the column for 240 design water temperature and read 38 gallons uncorrected tank size 2 Find the initial fill pressure by multiplying the system height by 0 433 30 x 0 433 13 psi Enter Figure 3 10 in the left hand column and move down to 12 psi fill pressure closest to 13 psi Move across to the column headed 40 psi pressure increase closest column to 40 psi minus 13 psi and read a correction factor of 0 63 Multiply 0 63 x 38 Gal 24 gallons corrected tank size 3 4 3 6 3 3 7 5 Select a conventional compression tank size of at least 24 gallons In some cases greater accuracv be obtained by interpolation in Figures 3 9 and 3 10 Diaphragm tvpe compression tanks can be sized bv using Figures 3 11 and 3 12 Find the expansion factor for water at the design water temperature from Figure 3 11 Multiplv that expansion factor bv the volume of the svstem to obtain the acceptance volume of the compression tank Find the tank volume by dividing the acceptance volume by the acceptance factor from Figure 3 12 Example find the diaphragm type tank size for the same svstem as in 3 6 2 above Solution 1 From Figure 3 11 at 240 F design temperature read an expansion factor of 0518 2 Multiply the system volume by the expansion factor Acceptance volume 153 5 Gal x 0518 8
27. obtained through vour local Burnham Wholesale Distributor Should require assistance in locating a Burnham Distributor in vour area or have questions regarding the availabilitv of Burnham prod ucts or repair parts please contact Burnham Customer Service at 717 481 8400 or Fax 717 481 8408 71 Limited Warrantv For Commercial Grade Boilers Using Cast Iron Carbon Steel or Stainless Steel Heat Exchangers and Parts Accessories Subject to the terms and conditions set forth below Burnham Commercial Lancaster Pennsylvania hereby extends the following kmited warranties to the original owner of a commercial grade water or steam boiler or Burnham Commercial supplied parts and or accessories manufactured and shipped on or after October 1 2008 ONE YEAR LIMITED WARRANTY ON COMMERCIAL GRADE BOILERS AND PARTS ACCESSORIES SUPPLIED BY BURNHAM COMMERCIAL Burnham Commercial warrants to the original owner that its commercial grade water and steam boilers and parts accessories comply at the time of manufacture with recognized hydronic industry standards and requirements then in effect and will be free of defects in material and workmanship under normal usage for a period of one year from the date of original installation If any part of a commercial grade boller or any part or accessory provided by Burnham Commercial is found to be defective in material or workmanship during this one year period Burnham Commercial will at its opti
28. temperatures If lowered below the dew point condensation of the moisture in the flue gases will occur and if continued over an extended period of time will corrode vents drafthoods heat exchangers and burners There are certain elements known as halogens fluorine chlorine bromide iodine and astatine which are utilized in many commercial products refrigerants solvents spray can propellant etc If these products must be used near the heating plant extra precaution must be taken to obtain uncontaminated air from the outside otherwise severe corrosion will occur in the boiler and vent system WARNING When an existing boiler is removed from a common venting svstem the common venting continued svstem is likelv to be too large for proper venting of the appliances remaining connected to it 14 VENTING As pointed out before venting is the process of removing of the flue products There are basicallv two tvpes of venting atmospheric or gravitv and power venting Further discussion will be limited to atmospheric vent svstems since it is by far the most commonly used and the most applicable to the Series 8H 8HE modular boilers The atmospheric svstem is composed of numerous parts and it is necessarv to understand the function and operation of each part in order to properlv design the svstem WARNING Do not alter boiler draft hood or place anv obstruction or non approved damper in the breeching or vent s
29. the header and inter connecting water piping from consideration as an integral part of a boiler Stop valves are recommended as shown in Figures 3 1 through 3 3 3 4 A ES 3 42 TEMPERATURE DROP Selection of temperature drop has received attention in recent years as a means of reducing piping or pumping costs Over several previous decades the 20 F water temperature drop had been standard for the hydronics industry Recently temperature drops of 30 F 40 F and even 50 F have been used successfully when the distribution system and terminal units are properly sized for these larger temperature drops In new construction it is advisable to consider the savings in materials that can be made by designing with a temperature drop larger than 20 F Figure 3 5 15 a typical friction velocity flow diagram used by most designers of large systems The lower scale Heat Conveyed is based on a 20 F temperature drop However the flow rate in gpm is shown on the upper scale and can be used to size pipe at other temperature drops by converting heat conveyed to flow rate in gpm Example Find the pipe size required to convey 1 000 000 Btuh in iron pipe at a friction loss of 500 mill inches ft and temperature drops of 20 F 30 F or 40 F Solution The gpm flow rate for 1 000 000 Btuh is found by dividing 1 000 000 by 500 x 20 100 gpm for 20 drop 1 000 000 by 500 x 30 66 7 gpm for 30 drop 1 000 000 by 500 x 40 50 gpm or
30. through open tanks and fittings c Oxygen permeable materials in the distribution system 3 19 3 In order to insure long product life oxygen sources 38 should be eliminated This can be accomplished by taking the following measures Repairing system leaks to eliminate the need for addition of make up water Eliminating open tanks from the system Eliminating and or repairing fittings which allow oxygen absorption Use of non permeable materials in the distribution system Isolating the boiler from the system water by installing a heat exchanger l 230N914 dWnd W31SAS dWnd 1TITIVAVd 59131108 Z NVYOVIG SNIdid b ALON 335 HOL8 3H608 3H808 f8Z HZ08 H908 408 ONIdld 404 91 335 BNIOVdS SGIOJINVW IVNOILHO 404 9NIOvdS 31000N 3400 1901 OL 0380 4 lt Nan1 8 83331 SLINAWAMINDAY SNldld 33108 WW Y04 531108 STANVA 3 0 1NONJ dOL WNOLLIQQV SS399V MO SAVM39VSSVd 52018 LON Od 01 S OO VOO 03 SV O MI JINQOW YO OOAT WALSAS l S ION 9 3135 83108 sa 1108 L V 3 0Z NO G3SV8 QV3H 40 14 3SN x L 310N 335 Z a
31. water piping in this section 3 1 1 The purpose of the Section 3 0 is to recommend piping systems and accessories that can be used with Series 8H 8HE Modular Gas Boilers Although recommended design procedures are presented the final sizing of mains pumps and compression tank must be left to the designer of the total system because only that designer has available the requirements and capacities of the connected system 3 1 2 Please consider the serviceman who must periodically clean and adjust the boilers and repair accessories Do not block passageways with piping Do not block access panels on the boiler jackets 3 2 MANIFOLDS Selection of the proper manifolds is important to the success of the modular concept One of the prime reasons for using modular boilers instead of a single large boiler is to improve the seasonal fuel efficiency Boiler losses are highest when the burner is off and the boiler is still warm Thus if one small module can carry the heating load during mild outdoor weather by nearly continuous firing a significant loss can be prevented and greater utilization of fuel can be made However poor selection of manifolding can wipe out part or all of the potential fuel savings of the modular system Some provision should be made to prevent water from flowing through any module when it is not being fired When warm system water is allowed to flow through any unfired module heat is being wasted by convection through t
32. which is between column marked 175 and 200 Ft Use next larger of 200 Ft e Read down until finding a number equal to or greater than the equivalent cubic foot flow requirement found in c above d f Read across to the left hand column and pick off the following required minimum pipe sizes Size D 4 Size D 4 Size 4 Size D 3 Size 0 3 Size D 2127 Size D 2 Size D 1127 g DI 1 becomes the vertical riser from each of the modules to the overhead horizontal main h Mark all pipe sizes on the plan for reference during installation Gas Pipe Installation With modules fully assembled including jackets install gas supply piping in accordance with the current edition of National Fuel Gas Code ANSI Z223 1 all requirements of the gas supplier and municipalitv 4 5 1 Please consider the serviceman who must periodicallv clean and adjust the modules and repair accessories Do not block passagewavs with piping Do not block access panels on the module jackets 4 5 2 Material Use only Schedule 40 black iron pipe Make sure all threads are fullv formed and free of burrs Threaded joints should be sealed with an approved compound to prevent leaks 4 5 3 Traps Install a trap similar to that shown in Figure A 8 at the low end of the vertical run to each module 4 5 4 Supports Pipe supports should be installed according to Figure 4 7 Supports shou
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35. 1 6 16 N A N A N A Construction Recommended p N A 7 24 7 24 8 18 24 11 26 7 36 For Servicing Not Applicable 1 USA amp Canada 2 USA Only 18 in Canada 5 or as necessitated by prefabricated water manifolds 6 Consult Local Codes for minimum spacing of multiple boilers 7 USA Only 48 in Canada 8 USA Only 24 in Canada MINIMUM INSTALLATION CLEARANCES AROUND MODULES FIGURE 2 10 Unconfined Space with Confined Space with Confined Space Outdoor Vent Outdoor Vent wllnside Air MBH Input MBH Input MBH Input 5 0 4 0 1 0 MBH Input refers to total input for all appliances in the boiler room TOTAL FREE AREA OF VENTILATION OPENINGS SQ IN FIGURE 2 11 24 JU9A JIEM SIBulS uj JU9A JIEM eignog g ed ul L Z JUNDMA SIN3A d NI OO YO4 81891 SIH L HO TdVd ANY ASN LON OQ 5NINdVW YG Wd4N poseq 11 9d pue JUQA UUnUUIUIUU xoig p adid jueA JO 9dA pue JO ezis o y 0 6 ul5u l IBJ91B IB1UOZIJOU JO jo uuinjoo puooes oj JUBIJ eui AOW 2 JUBISU JUBA JEJO 19891 DeJISSD 18 uunjoo puey 9 1911 L eiqei siu esn OL JUS IAN JIEM SIBulS ul eq JU9A JIEM JU9A JU9A JIEM JU9A 1B 9N JU9A JIEM JU9A IEN JU9A JIEM jqnoq g IIEM jqnoq g IIEM eiui eig
36. 30 22 24 26 28 same diameter as Tvpe B vent Otherwise Single Wall Metal Vent is not recommended 2 5 FIGURE 2 13 CONT 20 22 24 26 27 DU TA ITA UA 820HE DW DW DW DW DW Sw NR NR NR NR NR NR NR NR NR NR NR NR 10 10 12 NR 12 NR NR NR NR NR NR NR s 8 5 9 10 1 12 m 12 NRI 9 o 12 12 NR NR NR NRI 9 o 1o do 10 12 NR 12 NR 12 NRI Pee 9 9 10 10 10 1 12 NR 12 NRI 5 1010 12 NR NR NR NR NR NR NR s o o 9 1010 12 NR 1 NR 2 NRI s 8 9 1 1 10 10 12 NR 12 NRI 9 o 1010 10 NR NR NR NR NR NR NRI Pee 9 1 10 12 NR 2 NR 12 NRI s 8 9 101 o 1 1 10 NR 12 NR 9 1010 1 10 NR NR NR NR NR NRI Pee 9 5 10 12 NR 12 NRI s sls o o o 1 10 10 NR 12 NR LNR NRN 12 ne Pee 9 s sps she 2 1 sls sls 9110 fl ie 1 2 3 4 6 1 2 3 4 6 1 2 3 4 6 1 2 3 4 6 1 2 3 4 6 1 2 3 4 6 1 2 3 4 6 DW Double Wall SW Single Wall FIGURE 2 14 28 Individual Vent Dia From Figure 2 8 or Common Vent Dia CV From Figure 2 9 FIGURE 2 15 Inside Area Sq In Tile Lined Masonrv Chimnev 29 sal 10 ROUND FLUE TILES T el n T RECTANGULAR FLUE TILES NOTES NOMINAL FLUE SIZE FOR R
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39. A CONNECTOR RISE FIGURE 2 7 FRONT OF MODULE REAR OF MODULE VIEW B B CONSTANT DIA MANIFOLD VENT SYSTEM CV DIA BASED ON TOTAL BOILER INPUT 22 FIGURE 2 8 FIGURE 2 9 TOTAL VENT HEIGHT H MAX DISTANCE 15 IOFT OR A WHICHEVER 15 GREATER VENT F CONNECTOR SPACING Wey DIA DIA BASED ON TOTAL BOILER INPUT TO THIS SECTION OF MANIFOLD 5 MODULES IN THIS ILLUSTRATION DIA BASED ON TOTAL BOILER INPUT TO THIS SECTION OF MANIFOLD 2 MODULES IN THIS ILLUSTRATION NOTE MAX NUMBER OF MO CONNECTOR SPACING i eee TOTAL VENT 1 HEIGHT 1 LI E TAPERED MANIFOLD VENT SYSTEM MODULE BASED ON TOTAL BOILER INPUT 8 MODULES IN THIS ILLUSTRATION DULES VENTING THROUGH CV NOT TO EXCEED EIGHT 8 m VENT CONSTANT DIA MANIFOLD VENT SYSTEM 0 DIA BASED TOTAL BOILER INPUT SPACING NOTE MAX NUMBER OF MODULES VENTING THROUGH CV NOT TO EXCEED EIGHT 8 MAX DISTANCE IS IO FT OR OF H WHICHEVER IS GREATER P ee le 23 Drafthood amp 5 6Side 6Back to 6 Front to Vent Connector Jacket by Side Back Front 805 806 807 TO Combustible 1 6 2 36 118 l 1 1 6 Construction Recommended N A 1 24 1 24 18 24 11 26 7 36 For Servicing 808 809 810 To Combustible 1 6 2 51 1185
40. DYI PILVAAHOS 50 950 OL8 608 NO QUVANVIS SI 440 109 43LVM 1A dOSZ AA V SONILLIS HOLMS did TOMINOO HLM Q3 xovd SYNHOONE vZzV UVWHAL 335 V q HInO d SV NOILOALONd QVOTMJAO QNY SNV3A 19 NNOOSIQ QIAOdd lddnS d AOd W 3108l1S3A NI MIYOS LIHOVP OL 9 TVNINd 1 N3AHOJSNVHL WOMJ FYIM N3349 HOVLIV AINO VdVNVO v ond ddAnr HUM Q3oviddH SS3NMVH ONIMIM ddAVd 3 AINO 33dAVO 3 5537 13108 404 OL8 908 5 NO TWNOILHO 908 T30OA NO G381ND34 ddAVd INIA 1N TVAInO SLI MO NMOHS SV 3MIM HUM d OVId da 38 1SNW LI qaovidal 38 LSNA 3oNvriddv HUM QHddnS SV 3MIM TWNISIMO IHL 40 ANY 3l L SALON y nuni z 13198 OL EJ 310v1d3038 E QOBOvI Bdssv dyd 1N3A TISMA3NOH M3Nang 101ld LT 390071 THMM3NOH 330 100 0Z 1W dOSZ MATIN 3 TIANNOQOW OH WBA dol Pa gp 9958 JZAWOJSNVUL YAOS K SNIMIM L O T HM Mex eI ee re FI HOLI a 5 4 past Seal 28 l 11 Han i AvisM nezzgd LAT F e b TI3MA3NOH 3 Y T FTI NOILONAP 34 EIN TOMINOO dg8Zgd TI3MANOH SadHIO zd aolynoalo SdAV OL SQ330X3 Add
41. FIGURE 4 8 58 SECTION 5 0 CONTROLS ADANGER Positively assure all electrical connections are unpowered before attempting installation or service of electrical components or connections of the boiler or building Lock out all electrical boxes with padlock once power is turned off Z WARNING Failure to properly wire electrical connections to the boiler may result in serious physical harm Electrical power may be from more than one source Make sure all power is off before attempting any electrical work Each boiler must be protected with a properly sized fused disconnect Never jump out or make inoperative any safety or operating controls The wiring diagrams contained in this manual are for reference purposes only Each boiler is shipped with a wiring diagram attached to the front door Refer to this diagram and the wiring diagram of any controls used with the boiler Read understand and follow all wiring instructions supplied with the controls 5 1 General Breeching ducts water piping and gas 5 1 2 Burnham Commercial offers Tekmar boiler staging piping are generally less flexible than are electrical controls that can stage and rotate up to eight modules conductors To avoid conflicts for the same location All Tekmar controls use PID logic for precise control design and layout breeching ducts water and gas over the desired supply water or domestic hot water piping before proceeding with electrical and control temperatur
42. Figure 2 2 is 6 809 modules 10 Module Gross Output 809HE 460 x 80 x 1000 368 000 Btuh 11 Number of modules in water heating circuit 1 349 500 4 809HE 368 000 modules 3 13 3 The domestic water heater sizing procedures outlined in this section are based on methods recommended in the ASHRAE HANDBOOK and Product Directory Systems Volume Service Water Heating Chapter 3 14 PIPING MATERIAL supplied on a Series 8H 8HE packaged boiler or in the water trim carton of a Series 8H 8HE knockdown consists of the following Quantity 1 Altitude Temperature amp Pressure Gauge 2 Dia 60 320 F 0 75 PSIG 1 ASME Safety Relief Valve set at 50 PSI ConBraCo or Watts 1 Drain Cock 1 Pipe Coupling For Drain 1 2 x 10 Pipe Nipple For Supply Piping 36 2 x 3 2 x 2 Tee For Supply Piping 347 x Pipe Bushing For Supply Piping 4 x Close Pipe Nipple Relief Valve Piping 347 x 2 Pipe Nipple Relief Valve Piping 347 x 3 4 Pipe Nipple Relief Valve Piping and Drain 34 90 Ell Relief Valve Piping 347 Tee Relief Valve Piping 3 15 Piping components recommended for primary secondary pumping are depicted in Figure 3 3 N 3 16 Installation procedure for optional flex couplings 3 16 1 Pipe End Preparation a 4 ends of fabricated manifolds with a manual or automatic pipe cutter cut 1 1 8 off each end of the manifold to provide
43. Fitting Natural Gas Propane Gas 264 330 1 50 maximum plus 3 ells from Meter to furthest Module Gas Connection 396 2 0 5 PSIG Maximum Gas Pressure 16250600 3 0 3 Inch Water Column Pressure Drop 12009930 4 Specific Gravitv of Natural Gas 0 64 to 0 70 Propane 1 50 to 1 63 1320 1980 5 Heating value of 2046 3102 Natural Gas 1000 Btu F 3168 3564 Propane Gas 2500 Btu Ft 3630 5610 Otherwise refer to the Alternate Method of Gas Pipe Sizing in 44 To use this table 1 Total the Input MBH from Figure 2 3 of all modules to be supplied by the gas pipe and or fitting to be sized 2 Locate this Total MBH in the left column 3 Move to the right to the appropriate gas column 4 Read the pipe and or fitting size FIGURE 4 3 Nominal Inside Dia Screwed Fittings Valves pei or Pipe Size Schedule 40 s In 180 Close Swing Return Bends 9 EQUIVALENT LENGTH OF FITTINGS AND VALVES GAS PIPE FT TO USE THIS TABLE 1 ENTER LEFT HAND COLUMN AT REQUIRED PIPE SIZE 2 MOVE TO THE RIGHT TO THE RIGHT TO THE COLUMN FOR THE TVPE OF FITTING 3 READ THE EQUIVALENT LENGTH OF STRAIGHT PIPE FOR THAT ONE FITTING 4 TOTAL THE EQUIVALENT LENGTH FOR EVERY FITTING IN THE SUPPLY LINE 5 ADD THE TOTAL EQUIVALENT LENGTH FOR FITTINGS TO THE MEASURED LENGTH OF STRAIGHT PIPE TO OBTAIN THE EQUIVALENT LENGTH OF THE SUPPLY LINE FIGURE 4 4 56 Nominal
44. LLUSTRATION BASED ON TOTAL BOILER INPUT TO THIS SECTION OF MANIFOLD 3MODULES IN THIS ILLUSTRATION CN BASED ON BOILER INPUT AND CONNECTOR RISE CONNECTOR RISE 3FT IN THIS ILLUSTRATION NOTE TOTAL NUMBER OF MODULES VENTING THROUGH CM NOT TO EXCEED EIGHT 8 FIGURE 2 4 MAX DISTANCE IS IOFT OR oF H i VENT CONNECTOR SPACING MAX LENGTH 1 5 FT PER INCH OF CN DIA WHICHEVER 15 GREATER oig MAX DISTANCE IS IOFT FX i r OR 16 OF H WHICHEVER IS GREATER PLAN VIEW DUAL TAKEOFF CONSTANT DIA l pes MANIFOLD VENT SYSTEM MODULE SPACING ILLUSTRATION MANIFOLD 4 MODULES IN THIS ILLI pU EXCEED EIGHT B M32 57 FIGURE 2 5 BASED ON TOTAL BOILER INPUT 7 MODULES IN THIS CV gt BASED ON TOTAL BOILER INPUT TO THIS SECTION OF USTRATION BASED ON TOTAL BOILER INPUT TO THIS SECTION OF MANIFOLD 3 MODULES IN THIS ILLUSTRATION NOTE TOTAL NUMBER OF MODULES VENTING THROUGH CV NOT TO 21 VENT CONNECTOR SPACING B w FIGURE 2 6 MAX DISTANCE IS IOFT OR lp OF H WHICHEVER IS GREATER 1 B B PLAN VIEW CONSTANT DIA MANIFOLD VENT SYSTEM DIA BASED ON TOTAL BOILER INPUT NOTE MAX NUMBER OF MODULES VENTING THROUGH CV NOT TO EXCEED EIGHT 8 XOTAL VENT MAX LENGTH 15 FT PER INCH OF CN DI
45. M COMMERCIAL Z WARNING Completely read 6 2 understand and follow all instructions in this manual before attempting start up 6 3 WARNING BEFORE INSTALLATION OF THE BOILER IS CONSIDERED COMPLETE THE OPERATION OF THE BOILER CONTROLS SHOULD ALL BE CHECKED PARTICULARLV THE LOW WATER CUT OFF AND THE HIGH LIMIT CONTROLS 6 1 FILLENTIRE HEATING SYSTEM WITH WATER and vent air from svstem Use the following procedure on a svstem equipped with zone valves 1 Close all but one zone valve 2 Open drain valves on boilers 3 Open fill valve 4 Close purge valve 6 4 5 Open relief valves on boilers 6 Allow water to run out of drain valve until zone has been purged of air and filled with water 7 Open zone valve to the second zone to be purged then close the first Repeat this step until all zones have been purged but always have one zone open At completion open all zone valves 6 5 8 Close drain valve 9 When water discharges from relief valves release the lever on the top of the relief valves allowing them to close 10 Continue filling the system until the pressure gauge reads 12 psi Close fill valve 11 12 Start system circulator WARNING The maximum operating pressure of this boiler is Open purge valve 50 psig Never exceed this pressure Do not plug or modifv pressure relief valve TEST GAS PIPING Test main and pilot gas piping at boiler for leaks at all piping c
46. MBH and select 4 810HE modules as the most economical combination of modules Convert the Input of one module to Gross Output using Figures 2 1 and 2 3 810HE 505 MBH x 80 x 1000 Btuh MBH 406 000 Btuh Gross Output 2 3 4 5 6 6 7 9 35 10 The water heating load of 299 880 Btuh could be handled by one of the 810HE modules 299 880 1 810HE module 406 000 Example 2 an apartment building has 12 basins 12 kitchen sinks 14 showers 12 dishwashers and 2 slop sinks The design space heating load is 772 000 Btuh Size the water heater and boiler Solution 1 From Figure 2 15 12 basins units 9 Fixture Units 12 sinks x units 9 14 showers x 1 units 21 12 dishwashers 112 units 18 2slop sinks x 1 units 3 Total Fixture Units 60 2 From figure 3 16 using curve B for apartment houses find 27 gpm for 60 fixture units 3 Select a water heater having a capacity of 27 gpm at 40 140 F temperature rise 4 Calculate the water heater load 27 x 8 33 x 60 x 100 1 349 500 Btuh 5 Calculate ratio Water Heating Space Heating 1 349 500 1 75 772 000 6 From Figure 3 17 and a ratio of 1 75 find factor of 84 7 Net rating of boiler 84 x 1 349 500 772 000 1 905 550 Btuh 8 Required modular Input 1 905 550 Btuh x 1 44 2 744 MBH Input 1000 Btuh MBH 9 Module selection from
47. MO Bo NAOMB MB 140 5 35 NUNLIU J109 25 NES ama 18 140 wosNas ddnS XIN LS FAR dWnd ANVABid Ld NOLLINSI 1 1 TT XIBWISSV aaNana 1 101ld T uil 3 43 351 1 e M3dAVO INIA adAaoSNVaL YAOS L ua ye ewe der HOLIMS alle GM SONS 1 qasn 4 G 3108 LL I NW31SAS SNLIV3H AOaH ewe 1 7 4 03x L 0 i it TWNOIS 1V3H INA lE L E l 4 bcd 6 MEM OVA z3 g ON 339 lp 8 e x SS3NMVH ONIMIM OL 1 1 1 M3dAVO 1N3A po obs 1 1 ta 1 bte fet SS gt G rh e 1 1 1 1 1 I 1 1 l hs su ri ri JEN pog asn 3 1 L I E 2 e N and N HOLIMS Woo 1no og Woo oNn 3evis oyls yaMod 1Niodl3s 199490950 440 1n9 alala nfs 6 9 6 L Id Am TN L I Ozi 1A doS WRN N N bd V M i 3 M3MOd il 6 9 9 p Alddv LON Od eo
48. MPLIED WARRANTY LASTS SO THE ABOVE LIMITATION MAY NOT APPLY TO YOU PROCEDURE FOR OBTAINING WARRANTY SERMCE In order to assure prompt warranty service the owner is requested to complete and the Warranty Card provided with the product or register product online at www burnhamcommercialcastiron com within ten days after the installation of the boiler although fatture to comply with this request will not void the owner s rights under these warranties Upon discovery of a condition believed to be related to a defect in material or workmanship covered by these warranties the owner should notify the installer who will in turn notify the distributor If this action is not possible or does not produce a prompt response the owner should write to Burnham Commercial Box 3939 Lancaster PA 17604 giving full particulars in support of the claim The owner is required to make available for inspection by Burnham Commercial or its representative the parts claimed to be defective and if requested by Burnham Commercial to ship these parts prepaid to Burnham Commercial at the above address for inspection or repair In addition the owner agrees to make all reasonable efforts to settie any disagreement arising in connection with a claim before resorting to legal remedies in the courts THIS WARRANTY GIVES YOU SPECIFIC LEGAL RIGHTS AND YOU MAY ALSO HAVE OTHER RIGHTS WHICH VARY FROM STATE TO STATE Commercial Boilers Burnham Commerc
49. MULTIPLE MODULAR MANUAL FOR GAS FIRED BOILER SERIES 8H 8HE SIZES 5 THRU 10 LIC CERTIFIED www ahridirectory org ZNWARNING This manual must only be used by a qualified heating installer service technician BEFORE installing read all instructions in this manual and all other information shipped with the boiler Post all instructions and manuals near the boiler for reference by service personnel Perform steps in the order given Failure to comply could result in severe personal injury death or substantial property damage nn eY TT r r a ET gz www burnhamcommercial com 81416022R1 3 15 Price 5 00 IMPORTANT INFORMATION READ and save these instructions for reference HAZARD DEFINITIONS The following defined terms are used throughout this manual to bring attention to the presence of hazards of various risk levels or to important information concerning the life of the product ADANGER A CAUTION Indicates an imminently hazardous situation Indicates a potentially hazardous situation which which if not avoided will result in death serious injury or substantial property damage AWARNING NOTICE Indicates special instructions on installation operation or maintenance which are important but not related to personal injurv hazards if not avoided mav result in moderate or minor injurv or propertv damage Indicates a potentiallv hazardous situation which if not avoided could result i
50. OUND FLUES IS INSIDE DIAMETER NOMINAL FLUE SIZE FOR RECTANGULAR FLUES IS OUTSIDE DIMENSION qer ees roe z0 t Lis KA TA I 8X 6 fi 12 12 12 X16 16 X16 16 x 20 RECTANGULAR FLUE TILES NOTES DIMENSIONS SHOWN ABOVE ARE ACTUAL DIMENSIONS SIZES UNDER DIAGRAMS ARE NOMINAL DIMENSIONS NM FLUE TILES La 3 15 HA 1 4 I 8 A 5 L ig 20 24 19 Le s ze Ju z 20 re l 27 2 26 2 30 36 20 24 D FLUE TILES NM ji ce p 2m T Sain 24 FLUE TILES M TYPE COMMON VENT NOMINAL _ DIMENSIONS NOTE ROUND TILES IO DIA 12 DIA 15 DIA DIA 20 DIA 24 01 27 30 DIA 33 DIA 36 DIA ALL FLUE AREAS SHOWN ARE AREA 745 sc ios so m sa 240 sa l 298 sq 433 50 55 683 so 629 so 9895 sd ANE INSIDE AREAS RECTANGULAR TILES 8 2x 13 8 e xi8 is xis 13 x i8 18 x 18 20 20 120 24 l2a x 24 7857 Sorlio775 5012463 Sd 168 sq 232 sa 279 sq 3375 sa 420 59 M TYPE FLUE TILES COMMON VENT NOMINAL DIMENSIONS RECTANGULAR g TILES 12 12 12 16 16 X16 ie x2o l 20 x 20 20 X24 24 x 24 8 x 16 AREA 74 50 120 sq 162 sa 208
51. SERVICE WATER BOILERS TO USE THIS FIGURE 1 CALCULATE RATIO OF HOT WATER HEATING LOAD TO HEATING LOAD 2 ENTER HORIZONTAL SCALE AND MOVE UPWARD TO THE CURVE 3 READ HOT WATER HEATING LOAD FACTOR ON THE VERTICAL SCALE 4 MULTIPLV FACTOR BV THE HEATING LOAD TO OBTAIN THE HOT WATER ADDED BOILER CAPACITY 5 SELECT MODULES WITH TOTAL NET RATING EQUAL TO HEATING LOAD PLUS HOT WATER ADDED BOILER FIGURE 3 17 SECTION 4 0 GAS PIPING WARNING Failure to properlv pipe gas supplv to boiler mav result in improper operation and damage to the boiler or structure Alwavs assure gas piping is absolutelv leak free and of the proper size and tvpe for the connected load An additional gas pressure regulator mav be needed Consult gas supplier WARNING Failure to use proper thread compounds on all gas connectors result in leaks of flammable gas WARNING Gas supply to boiler and system must be absolutely shut off prior to installing or servicing boiler gas piping 4 1 General Breeching ducts and water pipes are generally less flexible in design location than are gas pipes To avoid conflicts for a given location design and layout breeching ducts and water piping before proceeding with gas piping in this section 42 Gas Piping Design and Layout On a scaled drawing of the boiler room locate the boiler modules as planned in SECTION 2 Locate the gas meter on the drawing Observe t
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54. abricated steel manifolds available as optional equipment By keeping the head above the top of the modules as shown in Figure 3 2 any gravity circulation from header to unfired modules is prevented Flow through each fired module is balanced as a result of having its own secondary circulator 3 2 31 3 2 3 Primarv secondarv pumping is preferred as it does accomplish the desired fuel economv To get the same economv from parallel pumping it is necessarv to install some mechanism which will prevent flow through unfired modules as well as to install separate supplv and return headers Thus the total installed cost of primarv secondarv pumping mav not be more than that of a properlv controlled parallel pumping svstem 3 2 4 If after careful consideration the svstem designer decides to use parallel pumping a svstem using reverse return headers as shown in Figure 3 1 is recommended Direct return headers not recommended because direct returns are inherentiv unbalanced and prevent some modules from delivering their rated capacities 3 2 5 Optional fabricated manifolds are available as a convenience to the installer and are highly recommended with four or more modules 3 2 5 1 Factorv fabricated manifolds are lightweight and quite forgiving of minor piping misalignments common to multiple boiler installations Each end of the 4 manifold is readv for connection to another manifold section or to the field piping
55. accurate calculation of the heat loss of the structure using methods contained in the ASHRAE Guide If service water is to be added capacity as described in paragraph 3 13 of this manual The boiler capacity so obtained is net rating to input Record the input required on the boiler room drawing 2 4 Using Figure 2 2 for the input found in 2 3 above find the number of modules recommended Those module combinations shown represent the best selection for lowest first cost Other combinations may be selected within the following guidelines 1 Modules using a sequencing control system such as Tekmar described in Section 5 0 should not vary by more than one size 2 Modules using a combined vent system should not vary by more than one size 3 The combined vent sizing procedures in this section are based on a maximum of eight modules using a common vent system If it is desired to serve more than eight modules with a common vent system the specific requirements should be referred to the BURNHAM COMMERCIAL Application Engineering Department Refer to Figure 2 3 for individual module inputs 2 4 1 Sketch on the boiler room drawing the approximate location of the modules Figures 2 4 thru 2 9 show several layouts that can be used depending on the size and shape of the boiler room and chimney location If provided Refer to Figure 2 3 for dimensional data on individual modules Select the layout which best fits the boiler room Bear in min
56. ation is in the module s supply riser to the manifold as depicted in Figures 3 2 and 3 3 Do not install any valve between the module and its respective LWCO 3 8 3 9 3 10 3 12 RELIEF VALVE Each Series 8H 8HE module is supplied with its own pressure relief valve No additional relief valves need be installed on the manifolds If domestic water heating is added to a module it is recommended that a relief valve be installed as shown in Figure 3 14 LIMIT CONTROL Each Series 8H 8HE module is supplied with its own high limit control To meet ASME requirements a second operating control must be placed in the supply header downstream of the last module but upstream of any valve on the supply main The size and type of control well will depend on the control system selected in Section 5 0 Note The local jurisdiction may require that the high limit on the module be of the manual reset type PRESSURE amp TEMPERATURE GAUGE Each Series 8H 8HE module is supplied with its own Tridicator so that the performance of each module can be observed without installation of additional gauges FILL VALVE An automatic fill valve is recommended to maintain the minimum pressure in the system at the fill pressure required by the height of the piping system SYSTEM CIRCULATOR To avoid placing the head pressure of the system circulator on the boiler and compression tank the system circulator should be installed such that it pumps away fr
57. be kept clear of the boiler at all times Keep the boiler area clean and free of fire hazards Float tvpe low water cutoff devices require annual inspection and maintenance Refer to instructions in Section V Paragraph 7 of the Series 8H 8HE Installation Operating and Service Instructions for inspection and cleaning instructions All Series 8HE cast iron boilers are designed built marked and tested in accordance with the ASME Boiler and Pressure Vessel Code Section IV Heating Boilers An ASME Data Label is factorv applied to each 8HE jacket which indicates the boiler Maximum Allowable working Pressure MAWP Each cast iron section is permanentiv marked with the MAWP listed on the boiler s ASME Data Label The MAWP for all Series 8HE Boiler is 50 psi Water Oniv It is common and acceptable practice to install these boilers in lower pressure svstems below the boiler MAWP Therefore in addition to Safetv Relief Valves set for 50 psi Burnham also offers Safetv Relief Valves set for 30 psi Bv Special Order Oniv Important Product Safety Information Refractory Ceramic Fiber Product Z WARNING The Repair Parts list designates parts that contain refractory ceramic fibers RCF RCF has been classified as a possible human carcinogen When exposed to temperatures above 1805 F such as during direct flame contact RCF changes into crystalline silica a known carcinogen When disturbed as a result of servicing or repair
58. bv means of 1 optional self restrained pipe couplings or 2 field roll grooving for use of groove stvle couplings One lateral connection on each manifold is threaded and intended to be made up first to positivelv locate the manifold during its installation The other lateral connections on each manifold are longer also threaded for those installations where threaded fittings such as unions are desired but it is recommended that these longer threaded laterals be cut off to vield plain ends for applving the same stvle couplings as on the 4 ends 3 2 5 2 The lateral connections on the factorv fabricated manifolds for use with 805H 806H and 807HE modules 1 2 schedule 40 equally spaced on 28 centers The lateral connections on the factorv fabricated manifolds for use with 808HE 809HE and 810HE modules are 2 schedule 40 equally spaced on 40 centers If an 807HE and an 808HE module are to be connected to a common manifold use the longer manifold with 40 spacing 3 2 5 3 Manifolds are available to serve two or three modules Two module manifolds have two return and two supplv lateral connections three module manifolds have three of each 3 2 5 4 The manifolds are adaptable to parallel pumping applications bv capping half of the lateral connections and using two manifolds one for supplv and one for return Refer to Figure 3 1 3 2 5 5 A fundamental advantage of primary secondary pumping over parallel pum
59. d that for combined vent systems it is desirable to keep horizontal laterals as short as possible On a combined vent system for which a fixed chimney is provided it is desirable to place the first module close to the chimney 2 4 2 If the factory fabricated water manifolds are to be used 805H 806H and 807HE modules should be laid out with 28 7 module spacing and 808HE 809HE 16 2 4 2 5 2 6 2 and 810HE modules should be laid out with 407 module spacing If an 807HE and an 808HE module are to be connected to a common manifold use the longer manifold with 40 spacing Otherwise any module spacing that allows at least 1 inch jacket to jacket spacing if acceptable pending local or state code requirements that may require greater module to module spacing Refer to Figure 2 10 for minimum clearances around modules to combustible materials and for service access CAUTION Local fire ordinances may be more restrictive and should be complied with One of the serious errors made in layout of a boiler room is the failure to provide sufficient ventilation air Insufficient ventilation air will cause incomplete combustion poor ignition accumulation of soot in the boiler or the production of toxic gases Many service calls for dirty boilers nuisance lock outs noisy ignition or obnoxious odors are traceable to insufficient ventilation air Use Figure 2 11 at the input desired to find the recommended free area of the
60. dule and 8 ells are in the supply line The propane to be used has a specific gravity of 1 40 and a heating value of 2420 Btu Ft Size the piping a To the measured length of 115 add the equivalent length of 8 ells x 10 1 Ft Ell for a total equivalent of 195 8 Ft The factor of 10 1 comes from Figure 4 4 under the column for ells at an estimated 4 main size b The actual cubic feet required in main D is 8 modules x 460 000 Btu 809HE 1521 FC Hr 2420 BTU Ft In a like manner the actual cubic feet required in the remaining main segments are found to be Flow D 7 x 460 000 2420 1331 Ft Hr Flow D 6 x 460 000 2420 1141 Ft Hr Flow D 5 x 460 000 2420 950 Ft Hr Flow D 4 x 460 000 2420 760 FC Hr Flow D 3 x 460 000 2420 570 Ft Hr Flow D 2 x 460 000 2420 380 FC Hr Flow D 1 x 460 000 2420 190 FC Hr c Enter figure 4 6 at a specific gravity of 1 40 and note the multiplier of 1 3 Tabulate equivalent flow rates for each pipe segment as follows Equiv Flow D8 1521 x 1 53 2327 Ft Hr Equiv Flow D7 1331 x 1 53 2036 Ft Hr Equiv Flow D6 1141 x 1 53 1746 Equiv Flow 05 950 x 1 53 1454 Ft Hr Equiv Flow DA 760 x 1 53 1163 Equiv Flow D3 570x 1 53 872 Ft Hr Equiv Flow D2 380x 1 53 581 Ft Hr Equiv Flow DI 190x 1 53 291 Ft Hr Enter Figure 4 5 from the top at column marked 200 Ft of pipe The length found in a above was 195 8 Ft
61. e louvers grilles or screens are sometimes used at or in the inlet and these have a blocking effect This must be taken into consideration in order to obtain proper quantities of fresh air If the free areas of these devices are not known it may be assumed that wood louvers will have 20 25 free area and metal louvers and grilles will have 60 75 free area For installation in boiler rooms with ventilation air provided from inside of building having adequate infiltration from outdoors each opening shall havea free area of not less than one 1 square inch per 1000 Btuh of the total input rating of the heating plant and other fuel burning appliance in the boiler room See Figure 1 2 For installation in boiler rooms with ventilation air provided directly from outdoors each opening shall have a free area of not less than one 1 square inch per 4000 Btuh of the total input rating of the heating unit and other fuel burning appliance in the boiler room Each opening should be equipped with a screen covering whose mesh should not be less than 1 4 inch and each opening should be constructed so that they cannot be closed See Figure 1 3 Normally ifthe boiler is installed in an unconfinedspace an adequate amount of ventilation air will be supplied by natural infiltration If however the unconfined space 15 ofunusually tight construction air from outdoors will be needed A permanent opening or openings with a total free area of not less t
62. e or both Use the table below for selecting layout in this section the proper control for the number of boilers being 5 1 1 Selection of the control package should be based on used 1 The application or end use of the heat supplied bv the modules ie is the application for space heating only or will it be used for space and domestic hot water requirements 2 The number of boilers being controlled 59 Boiler Staging Control Features Tekmar Control Model Number 261 274 Boiler Operation Number of Stages Boiler Differential AIM gt gt gt Fire Delay Interstage Delay A gt gt Domestic Hot Water DHW Operation External EMS Input Signal 0 10Vdc DHW Priority With Reset Override DHW External Demand Aquastat DHW Internal Demand Sensor DHW Post Purge Digital Display Pump Exercising Night Setback through Internal Timer Night Setback through External Timer A Automatic Adjustment F Fixed M Manual Note This is a partial list of features 60 000 YHL VS J4NDH ONIdId 11VVd 13 ADVLS OML L9Z SIVIAM3L SONILI3S HOLIMS 404 1O3HINOO HLIM OVd 3H0HOONMH LAZY UVAM3L 335 w 018 608 808 NO ddVdNYIS SI 4JO 10nO daIvA MOT LN dOSZ AA V SV NOILOALONd QVOTH3AO
63. e s s epos cine qe onm a ima jsej j j a 3 e z o Pays m gt gt res m ja psp emper owes fm m 3 l felu Casas Te Semi circular Wash 1 1 1 1 1 Fountain In applications where principal use is showers as in gvmnasiums or at end of shift in industrial plants use conversion factor of 1 00 to obtain design water flow rate in gpm SERVICE HOT WATER DEMAND FIXTURE UNITS TO USE THIS TABLE 1 FOR THE OF FIXTURE AND OF BUILDING READ DIRECTLY THE FIXTURE UNITS 2 MULTIPLV THE FIXTURE UNITS BV THE TOTAL NUMBER OF FIXTURES OF ONE TVPE 3 ADD TOGETHER THE FIXTURE UNITS FOR EACH TVPE TO OBTAIN THE TOTAL FIXTURE UNITS FOR THE BUILDING 4 PROCEED TO FIGURE 3 16 FIGURE 3 15 B HOSPITALS G MO NURSES RESIDENCES DORMITORIES HOUSES HOTELS AND 25 5 225 250 275 300 325 350 375 400 UNITS SERVICE HOT WATER FLOW RATE TO USE THIS FIGURE 1 ENTER THE HORIZONTAL SCALE AT THE TOTAL FIXTURE UNITS OBTAINED FROM FIGURE 3 15 2 MOVE UP VERTICALLV TO THE CURVE MARKED FOR THE TVPE OF BUILDING 3 READ REQUIRED SERVICE WATER FLOW RATE ON VERTICAL SCALE FIGURE 3 16 49 50 EIE 0 25 050 075 10 2 0 30 49 nano HOT MATER HEATING LOAD HEATING LOAO STUN SIZING FACTORS FOR COMBINATION HEATING
64. ecome verv hot when the boiler is operating Do not touch anv components unless thev are cool All appliances must be properly vented and connected to an approved vent svstem in good condition Do not operate boilers with the absence of an approved vent svstem These boilers need fresh air for safe operation and must be installed so there are provisions for adequate combustion and ventilation air The interior of the venting and air intake systems must be inspected and cleaned before the start of the heating season and should be inspected periodicallv throughout the heating season for anv obstructions Clean and unobstructed venting and air intake svstems are necessarv to allow noxious fumes that could cause injurv or loss of life to vent safelv and will contribute toward maintaining the boiler s efficiencv These boilers are supplied with controls which mav cause the boiler to shut down and not re start without service If damage due to frozen pipes is a possibility the heating system should not be left unattended in cold weather or appropriate safeguards and alarms should be installed on the heating svstem to prevent damage if the boiler is inoperative This boiler is designed to burn natural and or LP gas only Do not use gasoline crankcase drainings or oil containing gasoline Never burn garbage or paper in this boiler Do not convert to solid fuel i e wood coal flammable debris rags paper wood scraps etc should
65. eman to assure that the unit is properly adjusted and maintained Clean boilers at least once a year preferably at the start of the heating season to remove soot and scale The inside of the combustion chamber should also be cleaned and inspected at the same time Have Burner and Controls checked at least once a year or as may be necessitated Do not operate unit with jumpered or absent controls or safety devices Do not operate unit if any control switch component or device has been subject to water WARNING Appliance materials of construction products of combustion and the fuel contain alumina silica heavv metals carbon monoxide nitrogen oxides aldehvdes and or other toxic or harmful substances which can cause death or serious injurv and which are known to the state of California to cause cancer birth defects and other reproductive harm Alwavs use proper safetv clothing respirators and equipment when servicing or working nearby the appliance These boilers contain verv hot water under high pressure Do not unscrew pipe fittings attempt to disconnect components of this boiler without positively assuring the water is cool and has no pressure Alwavs wear protective clothing and equipment when installing starting up or servicing this boiler to prevent scald injuries Do not relv on the pressure and temperature gauges to determine the temperature and pressure of the boiler This boiler contains components which b
66. ended Enter Figure 2 14 at H 10 Ft and move right to F 3 Ft Move right and find connector diameter CN of 12 in the 809HE column and 12 in the 810HE column Calculate minimum ceiling height 325 Module Height 33 Drafthood Height D 36 Desired connector Rise 26 Manifold Diameter 6 Clearance 11 2 Minimum Ceiling Height A twelve foot clear ceiling height will work With only one elbow no correction is necessary The design of a constant diameter manifold vent is complete Mark these vent and connector sizes on the drawing of the boiler room 17 7 Ifa tapered or graduated manifold vent is desired such as in Figure 1 6 the horizontal and Vertical portion of the vent serving five modules is also complete with 6 above However to size the manifold vent at an intermediate position such as in Figure 2 4 use Figure 2 13 for the MBH Input of the modules served by that position of the manifold vent The Input MBH of each module can be determined from Figure 2 3 In this case CV3 serves two modules having an input of 920 MBH Enter figure 2 13 at an input of 920 MBH Move right to H 10 Ft and find CV3 14 diameter Mark this vent diameter size on the drawing of the boiler room Thus a graduated manifold vent design is complete It is possible with this procedure to reduce the manifold vent size after each module However from a practical standpoint the cost of fittings may of
67. er and or property due to installation or operation of the boiler that is not in accordance with the boiler installation and operating instruction manual Any damage ct failure of the boiler resulting from hard water scale buikiup or corrosion the heat exchanger Any damage caused by improper fuels fuel additives or contaminated combustion air that may cause fireside corrosion and or clogging of the burner or heat exchanger i Any damage resulting from combustion air contaminated with particulate which cause clogging of the bumer or combustion chamber including but not limited to sheetrock or plasterboard particles dirt and dust particulate j Any damage defects or malfunctions resulting from improper operation maintenance misuse abuse accident negligence including but not limited to operation with insufficient water flow improper water level improper water chemistry or damage from freezing k Any damage caused by water side clogging due to dirty systems or corrosion products from the system 1 Any damage resulting from natural disaster m Damage or malfunction due to the lack of required maintenance outlined in the installation and Operating Manuals furnished wath the unit 6 Exclusive Remedy Burnham Commercial obligation for any breach of these warranties is limited to the repair or replacement of its parts not including labor in accordance with the terms and conditions of these warranties 7 Limitation of Damages U
68. er is 264 000 Btu hr Heating value of gas is 1 000 Btu cu ft Therefore 264 000 264 000 13 2 cu ft 3 min 1 000 x 20 20 000 6 Return all control settings to their normal positions ADJUST AIR SHUTTERS on Main Burners by loosening shutter lock screw and closing them until yellow tips appear on flames then open shutters slowly until clearly defined inner cones may be seen Tighten screws to hold the air shutters in this position SEQUENCE OF CONTROLS See Section 5 0 for the sequence of controls that applies to the system installed Z WARNING Label all wires prior to disconnection when servicing controls Wiring errors can cause improper and dangerous operation Verify proper operation after servicing 6 8 CLEANING BOILER FLUES AND BURNERS Boiler flues should be inspected annually and burners should be cleaned annually The proper procedures for this maintenance including removal and reinstallation of canopy burners and pilot assemblies are detailed and diagrammed in the INSTALLATION OPERATING AND SERVICE INSTRUCTIONS manual supplied with each 8H 8HE Series Boiler For service or repairs to boiler call our heating contractor When seeking information on boiler provide Boiler provide Boiler Model Number and Serial Number as shown on Rating Label Boiler Serial Number 6 O O O O O Heating Contractor Installation Date 70 IX Repair Parts Series 8H 8HE repair parts be
69. er says that his system will deliver 4224 cubic feet at 0 5 psig at the meter and his gas has 0 65 specific gravity and 1000 Btu Ft heating value Figure 4 3 can be used The piping 0 between the gas meter and the first module take off C serves eight modules From Figure 23 each 809HE module requires 460 MBH Input 8 x 460 3680 MBH Total Input thru D Enter the left column in Figure 4 3 with 3680 total input MBH which falls between the figure values of 3630 5610 4 Read across to the Natural Gas column and pick off a pipe fitting size of 4 Record this on the gas pipe drawing as D 2 3 51 5 The next piping segment serves seven modules 7 x 460 3220 MBH Total Input thru D 6 Enter Figure 4 3 with 3220 Total Input MBH and again pick off a pipe fitting size of 4 Record this as D 7 In like manner 3 D 2 0 D 3 2 D 3 D C 1 8 Since all modules require the same input MBH 14 applies to the vertical drops to each module 9 From Figure 2 3 the modules Gas Connection size is determined to be 1 MPT non IRI assumed for this example 10 Record each module s supply piping A and manual valve B sizes as 1 11 By inspection the reducing tee fittings in the horizontal gas line can be sized based on the adjacent pipe sizes C is between D which is 4 and D which is also 4 and feed
70. fset the lower cost of smaller vent pipe 2 10 All of the above procedure is based on data found in the ASHRAE Guide 1975 Equipment Volume Chapter 26 The basic chimney equation is expressed as follows di APB 0 5 4 13 10 M 1 25 INPUT 80 M x 7O where I Operating heat input BTUH di Inside diameter of the common vent or manifold vent Mass flow input ratio lb of products per 1000 BTU of fuel burned A value of 1 60 was used based on 5 3 CO after dilution An additional 15 dilution was added for each unfired module AP Pressure difference or loss in the system acting to cause flow inches of water Use 0 537 inches water per 100 Ft of pipe Sea level barometer used 29 92 Hg K Resistance loss coefficients dimensionless Tm Temperature in vent system at average conditions Fabs The serious Engineer should become familiar with the above basic equation and the range of the variables that may be encountered The tables in Figures 2 12 thru 2 14 should not be extrapolated If system conditions do not fall within the limit of the tables vent sizes must be calculated using the chimney equation above as described in the ASHRAE Guide NET RATING 87 RELATIONSHIP OF INPUT GROSS OUTPUT AND NET RATING FOR SERIES 8H 8HE MODULES FIGURE 2 1 18 806H 807 808HE 809HE 810HE 809HE 810HE 2 3 4
71. gallons 3 Enter figure 3 12 at a fill pressure of 13 psi and a final pressure of 50 psi and read the acceptance factor of 0 58 4 Tank volume 8 gallons 0 58 14 gallons 5 Select a diaphragm type tank having a minimum acceptance volume of 8 gallons and a tank volume of at least 14 gallons LOW WATER CUTOFF On each modular install ation at least one low water cutoff is required If as recommended in 3 3 modules are installed with shutoff valves in their respective supply and return piping to the manifold then each module will require a dedicated LWCO Otherwise a system LWCO will be required If a system LWCO is to be used such as shown in Figure 3 1 or 3 2 it must be installed on the return main at an elevation higher than the modules and fill valve The pipes connecting from the main to the system LWCO must be teed into the return main using the shortest possible 1 pipe and fewest fittings See Figure 3 1 or 3 2 Do not install valves between the return main and the system LWCO If for any reason the elevation of a module is different from another module in the group the system LWCO must be installed above the module having the highest elevation If dedicated LWCO s are to be used they must be installed between each module and its respective shutoff valve and at an elevation higher than the module and its fill valve A probe style LWCO is available as an option and its recommended installation loc
72. han one 1 square inch per 5000 Btuh of the total input rating of the heating plant and other fuel burning appliances in the unconfined space 18 necessary If ducts minimum rectangular area of 3 square inches are used they must be the same cross sectional area as the free area of the opening to which they connect Screening to cover the openings to the outside should not be smaller than 1 4 inch mesh and each opening should be constructed so that they cannot be closed See Figure 1 4 WARNING CAUTION The importance of adequate and proper ventilation cannot be overemphasized It must also be understood that venting and ventilation mustalwavs be considered together Thev are both part of the same svstem and must balance each other If exhaust fans are utilized such as for make up air the make up air should not be drawn from the same space that is the source of combustion air for the heating plant unless adequate provisions are made to supplv additional outside air so that the space surrounding the heating unit is not under a negative pressures less than outdoor pressure Blowers should not be used to forciblv provide ventilation unless controlled toa point where static pressure in the space in which the heating plant is located is equal to the outdoor pressure CAUTION Excess pressure resulting from larger than necessary volumes offresh air will cause excessive dilution of the flue products resulting in low flue gas
73. hat the opening in the module jacket for gas piping is on the top surface at the right side front corner The gas connection to the module gas train is inside the module vestibule and on the right side 12 above the floor 4 2 1 Using Figures 4 1 and 4 2 decide on the simplest piping arrangement for the module layout The location of the gas meter in relation to the modules has a large effect on the length and size of the gas piping Long mains with many fittings should be avoided as the minimum pipe size required increases as the length of pipe and number of fittings increases For this reason it is desirable to ask the gas supplier to set the gas meter as close to the boiler room as possible 4 2 3 On the plans draw the gas piping using the shortest possible route from meter to modules while observing the need to keep passageways open around all modules for servicing It is highly recommended that the gas main be located horizontal at the ceiling level of the boiler room and directly over the front base line of the modules The branch lines from the main should be vertical and direct to the modules 4 2 4 On the plans measure the total distance including vertical runs from the gas meter to the furthest module and count the main fitting ells in that furthest run Straight flow through a tee is not counted as a fitting 4 2 5 Obtain from the gas supplier the following information a type of gas natural or propane b s
74. he chimney and jacket of that unfired module For Recommended Water Quality Requirements pH 8 3 10 5 TDS lt 3500 ppm Total alkalinity ppm as CaCO lt 1200 Total copper ppm lt 05 Oily matter ppm lt 1 Total harness ppm lt 3 Chlorides lt 50 ppm example on an eight module system fired by an eight step sequencer only one module may be required to meet the connected load demand on a day that is 55 F outdoors That would be a highly efficient operation However if the system water is allowed to flow through the other seven modules they too are kept warm and the total jacket and flue losses of the eight modules may be as great as that of a single large boiler Thus intended benefit is lost Figure 3 1 shows a typical parallel pumping system Parallel pumping of modules does not prevent flow through unfired modules as commonly installed Thus parallel pumping is not desirable unless a motorized valve is used on the supply pipe from each module and controlled to open only when that module is fired With motorized valves the owner may find objectionable noise from high velocity water flow under light loads when the entire flow of the system pump is directed through only one module of the group 3 2 2 By contrast primary secondary pumping provides positive flow through each module only when that module is fired Figure 3 2 shows such a system The piping is simple and uses only a single header made up of f
75. ial P O Box 3939 Lancaster PA 17604 Revised November 1 2009
76. ich is found to be using the gas piping as a conductor Note Many municipalities allow light weight low voltage well insulated electrical wire to be supported on the gas piping with approved non conductive fasteners Gas piping should not be used to support any other pipe or heavy object Find other means to support any such heavy object Traps should be cleaned at least once every two years Turn off gas supply remove cap below tee as shown in Figure 4 8 and clean out all moisture and foreign material Replace cap and check for leaks as described in 4 5 6 above 53 RECOMMENDED GAS SUPPLY PIPING 1 THRU 8 MODULES IN LINE OR CORNERED ALL PIPING SHOWN SUPPLIED BY INSTALLER SERVICE SHU OFF VALVE SERVICE REGULATOR GAS METER FRONT VIEW SERIES 88 MODULAR GAS BOILERS DO NOT BLOCK PASSAGEWAYS NOR ACCESS TO TOP AND FRONT JACKET PANELS 54 FIGURE 4 1 RECOMMENDED GAS SUPPLY PIPING TWO ROWS 1 THRU 4 MODULES EACH BACK TO BACK OR CORNERED OR 1 THRU 8 MODULES IN LINE ALL PIPING SHOWN SUPPLIED BY INSTALLER SERVICE SHUT OFF VALVE D SERVICE REGULATOR FRONT VIEW SERIES 8B MODULAR GAS BOILERS TO TOP AND FRONT JACKET PANELS FIGURE 4 2 DO NOT BLOCK PASSAGEWAYS NOR ACCESS 55 AME Total Input MBH of Pipe Fitting Size NPT 1 i i Module s Served ei table only if all of the following conditions by Pipe
77. its such as baseboard commercial finned tube convectors and fan coils can be computed by knowing the length and size of the tubes Example Find the water volume in 528 ft of 1 47 copper dual tiered commercial finned tube Solution From Figure 3 8 obtain the value of 065 gal ft for 1 4 copper and multiply by 528 ft and by 2 tiers 0 65 gal ft x 528 ft x 2 tiers 68 6 Gallons in the Finned Tube 3 6 1 3 From the above examples the total volume of the system can be added Volume of piping 29 3 Gal Volume of modules 55 6 Gal Volume of Finned Tube 68 6 Gal Total Volume of System 153 5 Gal 3 6 2 Conventional compression tanks can be sized by using 34 Figures 3 9 and 3 10 Enter Figure 3 9 in the left hand column at the water volume of the system move across to the right to the maximum water temperature of the system and read the uncorrected tank size To find the correction factor enter Figure 3 10 in the left hand column of the initial fill pressure and move across to the right to column for the system pressure increase and read the tank correction factor Multiply the uncorrected tank size by the correction factor to find the final tank size Example Find the conventional compression tank size for a system having a water volume of 153 5 gallons a design water temperature of 240 F a 50 psi relief valve and a system height of 30 Ft Solution 1 Enter Figure 3 9 in the left hand column and
78. l pipe or type B Gas Vent Pipe consult local codes A UL Listed vent cap should be installed 1f possible at the exit of the common vent to assure full vent capacity and freedom from adverse wind effects Total vent height is the vertical distance between the exit of the common vent and the exit or outlet of the drafthood Regardless of the calculated total vent height required for capacity all vents must be correctly terminated a sufficient distance above the roof surface and away from nearby obstructions see Figs 1 5 and 1 6 This is to avoid adverse wind effects or pressure areas which reduce or impede vent flow This does not implv that terminations at these locations will assure proper venting in everv instance Because winds fluctuate in velocitv direction and turbulence and because these same winds impose varving pressures on the entire structure no simple method of analysis or reduction to practice exists for this complex situation Manifold vents may be run horizontally or sloped upwards toward the common vent Slope should not exceed 1 4 per foot unless required otherwise by local codes Regardless minimum vent connector rise as determined for each appliance must be maintained Manifold vents may be of constant diameter Fig 1 5 in which case they are of the same size as the common vent or its equivalent Manifolds may also be tapered Fig 1 6 for the actual input to a particular section of the manifo
79. ld Difference in operating characteristics between properly sized constant diameter manifold vents or tapered manifold vents are negligible and choice is usually dictated by convenience and cost 1 4 4 INDIVIDUAL VENTS Economics thru the use 10 of smaller vent pipe and the elimination of fittings could dictate the use of an individual vent system for each module see Fig 1 7 rather than a combined vent system If the individual vents are of the proper diameter and the total vent height is a minimum of 5 ft the systems are self venting and more reliable IOO CU FT GAS 1000 CU FT AIR APPROX PRINCIPALLY METHANE CH4 250 CU FT EXCESS AIR m 2 200 CU FT OXYGEN 02 800 CU FT NITROGEN 100 CU FT GAS 1250 CU AIR TOTAL than a combined vent svstem since in the latter it is impossible to anticipate all contingencies 1 4 5 VENT AND CHIMNEV MATERIALS AND CONSTRUCTION The materials of construction for vents and chimnevs include single wall metal various multi wall air and mass insulated tvpes as well as masonrv which could be precast or site constructed In many instances national or local codes will govern what tvpe mav be used Where choice is possible manv advantages can be listed for the UL Listed double wall metal tvpe B vent 1 warm up is faster with type B vents than vents having greater mass 2 type B vents permit closer clearance to combustible material than single
80. ld encircle the pipe at ceiling level but allow movement for expansion of the piping The weight of the gas piping must not be placed upon the module gas connection 4 5 5 Grounding Gas piping must be grounded If any non conductive fittings are used they must be bridged with an appropriately sized ground wire Particular attention should be given to a propane system with above ground tank s Such tank s must be externally grounded 4 5 6 Leak Testing If the gas lines have been designed according to preceding sections of this manual the operating gas pressure will be 0 5 psig Under such pressure fuel gas may be used for leak testing On each module turn the manual portion of combination valve to off position before applying gas pressure 4 6 Immediately after applying gas pressure apply leak check solution to all gas piping and observe piping for leaks Repair any leaks found and retest piping If the gas supplier requires leak testing at pressures higher than 0 5 psig or with inert gas follow that required procedure in full Gas Piping Maintenance Piping should be inspected annually or after any extended shut down period If the normal operating gas pressure is 0 5 psig or less fuel gas can be used for leak detection as described in 4 5 6 above Any pipe or fitting showing unusual rust or corrosion should be replaced Gas piping should not be used as an electrical conductor Relocate any electrical circuit wh
81. llation 4 Proper Use and Maintenance The warranties extended by Burnham Commercial conditioned upon the use of the commercial grade boiler parts and accessories for its intended purposes and its maintenance accordance with Burnham Commercial recommendations and hydronics industry standards For proper installation use and maintenance see all applicable sections of the Installation and Operating and Service Instructions Manual furnished with the unit 5 This warranty does not cover the following a Expenses for removal or reinstallation The owner will be responsible for the cost of removing and reinstalling the alleged defective part or ts replacement and all labor and material connected therewith and transportation to and from Burnham Commercial b Components that are part of the heating system but were not furnished by Burnham Commercial as part of the commercial boiler c Improper burner adjustment control settings care or maintenance d This warranty cannot be considered as a guarantee of workmanship of an installer connected with the installation of the Burnham Comrnercial boiler or as imposing on Burnham Commercial liability of any nature for unsatisfactory performance as a result of faulty workmanship in the installation which Bability is oxprossiv disclaimed Pub BCL1109041 9 Boilers parts or accessories installed outside the 48 contiguous United States the State of Alaska and Canada f Damage to the bol
82. mportance It must maintain a leak tight seal for many years at the temperatures and pressures of a hot water boiler and withstand the attack of the corrosion inhibitors and antifreezes common to hot water system In general neoprene nitrile Buna N EPDM and butyl are not acceptable gasket materials because they either are not resistant to the fluids or are not capable of continuous use at 250 F wm Gasket and Coupling Installation Specific installation procedures vary from one coupling manufacturer to another Follow the coupling manufacturer s recommendations for installation 3 18 STRAINERS A start up strainer is recommended for practically all modular installations new and replacement alike to prevent system debris and 5 ediment from ending up in the boilers where it will inhibit heat transfer and eventually cause a cast iron section to crack from overheating 3 19 OXYGEN CORROSION 3 19 1 Oxygen contamination of the boiler water will cause corrosion of the iron and steel boiler components which can lead to failure As such anv svstem must be designed to prevent oxvgen absorption in the first place or prevent it from reaching the boiler Problems caused by oxvgen contamination of boiler water are not covered bv Burnham s standard warrantv 37 3 19 2 There are many possible causes of oxygen contamination such as a Addition of excessive make up water as a result of system leaks b Absorption
83. n death serious injurv or substantial propertv damage THIS BOILER HAS A LIMITED WARRANTY A COPY OF WHICH IS PRINTED ON THE BACK OF THIS MANUAL It is the responsibilitv of the installing contractor to see that all controls are correctiv installed and are operating properlv when the installation is complete The warranty for this boiler is valid only if the boiler has been installed maintained and operated in accordance with these instructions ADANGER DO NOT store or use gasoline or other flammable vapors or liquids in the vicinity of this or any other appliance If you smell gas or fuel oil vapors do not try to operate the burner boiler system Do not touch any electrical switch or use any phone in the building Immediately call the gas or oil supplier from a remotely located phone Burner boiler systems produce steam or hot water in a pressurized vessel by mixing extremely flammable gaseous liquid or solid fuels with air to produce combustion and very hot products of combustion Explosions fires severe personal injury death and or property damage will result from improper careless or inadequate installation operation or maintenance of fuel burning and boiler equipment WARNING Improper installation adjustment alteration service or maintenance can cause propertv damage personal injurv or loss of life Failure to follow all instructions in the proper order can cause personal injurv or death Read and under
84. n either coupling until entire joint has been assembled Tighten nuts of 4 couplings to 280 300 inch Ibs and 1 and 2 couplings to 140 160 inch lbs or to a minimum of 1 16 clearance between coupling lugs whichever occurs first Retightening of the coupler will be necessary if leakage occurs A completed V coupling installation is shown below Coupling Sleeve Retainer Sleeve Reta Gasket Special Notes Assembly of gaskets can be made easier by dipping gaskets in water or wiping them with a small amount of liquid hand soap Other rubber lubricants cannot be used To simplify installation of the self restrained gasket install the lower half of the gasket first leaving the split area in the steel retaining ring free at the top Then stretch the gasket and split area of the retaining ring until they slip over the pipe and into position as shown below wm Lift and stretch gasket and retaining ring until gasket slips over pipe N Split area in retaining ring Install lower half of gasket first These self restrained joints are recommended for use on elbows and tees because they are capable of supporting end loads caused bv internal pressure up to their rated operating pressure of 80 psi Recommended assembly torque must be maintained to withstand these end loads 7 The gaskets supplied with the flex couplings are specificallv formulated for boiler wate
85. nd 1 yaMod 1 09 02 i Xiddv LON Od UIMOd 896 Gavonaay 4 avo V 133 33V SWALI 3S3HL 68 SECTION 6 0 START UP AND SERVICE WARNING Service on this boiler should be undertaken only by trained and skilled personnel from a qualified service agencv Inspections should be performed at intervals specified in this manual Maintain manual in a legible condition Keep boiler area clear and free of combustible materials gasoline and other flammable vapors and liquids Do not place anv obstructions in boiler room that will hinder flow of combustion and ventilation air The service instructions contained in this manual are in addition to the instructions provided by the manufacturer of the boiler components Follow component manufacturer s instructions Component manufacturer s instructions were provided with the boiler Contact component manufacturer for replacement if instructions are missing Do not install start up operate maintain or service this boiler without reading and understanding all of the component instructions Do not allow the boiler to operate with altered disconnected or jumpered components Only use rePLACEMENT COMPONENTS IDENTICAL TO THOSE ORIGINALLY SUPPLIED BY BURNHA
86. nder no circumstances shall Burnham Commercial be hable for incidental indirect special or consequential damages of any kind whatsoever under these warranties including but not limited to injury or damage to persons or property and damages for loss of use inconvenience or loss of time Burnham Commercial liability under these warranties shall under no circumstances exceed the purchase price paid by the owner for the commercial grade boiler involved Some states do not allow the exclusion or limitation of incidental or consequential damages so the above limitation or exclusion may not apply to you 8 Limitation of Warranties These warranbes set forth the entire obligation of Burnham Commercial with respect to any defect in a commercial grade boiler parts or accessories and Burnham Commercial shall have no express obligations responsibilities or liabilities of any kind whatsoever other than those set forth herein These warranties are given in lieu of all other express warranties ALL APPLICABLE IMPLIED WARRANTIES IF ANY INCLUDING ANY WARRANTY OF MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE ARE EXPRESSLY LIMITED IN DURATION TO A PERIOD OF ONE YEAR EXCEPT THAT IMPLIED WARRANTIES IF ANY APPLICABLE TO THE HEAT EXCHANGER IN A COMMERCIAL GRADE BOILER SHALL EXTEND TO THE ORIGINAL OWNER FOR THE TIME SPECIFIED IN THE HEAT EXCHANGER SECTION SHOWN ABOVE AT THE ORIGINAL PLACE OF INSTALLATION SOME STATES DO NOT ALLOW LIMITATION ON HOW LONG AN I
87. nog g ul ul ed ul ul ed ul eq ul ed ul L L 34N914 339 31NQOW 319NIS V 5NIAd S SIN A dO MN313WVIG SLN3A VfGIAIQNI ueA IAN JIEM SIBulS ul eq JU9A JIEM eignog g ed ul 46u37 JEJUOZJJOH B d JUBISH 14 IeJOL seo 25 CV Diameter of Common Vent Inches H Least Total Vent Height Ft 10 15 Input MBH 504 567 630 655 680 750 820 870 920 965 1010 1090 1160 1230 1280 1330 1380 1425 1470 1515 1570 1640 1740 1790 1840 1885 1930 1975 2020 2100 2150 2200 NOTE Shaded Area indicates acceptable applications for Single Wall Metal Vent of the same diameter as Type B vent Otherwise Single Wall Metal Vent is not recommended 2 5 2 5 FIGURE 2 13 2 5 Least Total Vent Height Ft 2 5 Input MBH 10 15 20 30 2250 2300 2345 2390 2435 2480 2525 2610 2660 2710 2760 2805 2850 2895 2940 2985 3030 3070 3170 3220 3265 3310 3355 3400 3445 3490 3535 3630 3680 3725 3770 3815 3860 3905 3950 3995 4040 NOTE Shaded Area indicates acceptable applications for Single Wall Metal Vent of the 28 30 32 26 28 30 24 26 28
88. om the boiler and compression tank See Figures 3 1 and 3 2 DOMESTIC WATER HEATING An external water heater may be added to any module on either primary secondary or parallel circulation system If heavy water heating loads are anticipated an additional module s may be added to the water heating circuit Refer to Figure 3 14 for recommended module water piping for domestic water heating with parallel piping Refer to Figure 3 3 for recommended pipng when using an Alliance Indirect hot water tank with Primary Secondary Piping 3 13 1 Water heater size may be determined in the following manner 1 From Figure 3 15 find the appropriate factor for each fixture in the building and add them together to find the total fixture units 2 From Figure 3 16 convert the fixture units to hot water capacity in gallons per minute based on 40 140 F temperature rise 3 Select water heater based on gallons per minute from 2 above 3 13 2 The addition of water heating may not necessarily add to the size of the modules Since the maximum space heating lead and the maximum water heating load rarely occur at the same time only a portion of the water heating load is added to the space heating load to size the modules as follows 1 Calculate the water heating load in Btuh gpm x 8 33 Lb Gal x 60 Min Hr x 100 AT Btuh Calculate ratio Water Heating Load Space Heating Load From Figure 3 17 using the ratio found in 2 find factor for
89. on repair or replace the defective part not including labor HEAT EXCHANGER WARRANTIES Burnham Commercial warrants to the original owner that the heat exchanger of its commercial grade boilers will remain free from defects in material and workmanship under normal usage for the time period specified in the chart below to the original owner at the original place of installation W a claim is made undor this warranty during the No Charge period from the date of original installation Burnham Commercial will at its opbon repair or replace the heat exchanger not including labor If a claim is made under this warranty after the expiration of the No Charge period from the date of original installation Burnham Commercial will at its option and upon paymoent of tho pro rated service charge set forth below repair or replace the heat exchanger The service charge applicable to a heat exchanger warranty claim is based upon the number of years the heat exchanger has been in service and will be determined as a percentage of tho retail price of the heat exchanger model involved at the timo the warranty claim is made as follows Service Charge as a of Retail Price in Service 1 12131415161718191 10 Castlon NoCharge 100 Carbon Steel NoChargel L Stainiess Steel No Charge 20 40 160180 100 NOTE H the heat exchanger involved is no longer available to product obsolescence or redesign the value used to e
90. onnections and valves Refer to 4 5 6 PURGE GAS PIPING OF AIR 1 Disconnect electric service to boiler 2 Turn control knob on all modules combination gas valves to off position 3 Open valve on main gas line at meter 4 Starting with Module 1 disconnect pilot tubing from outlet side of combination gas valve Depress Control Knob slightly and turn to Pilot position Depress Knob fully and hold until gas issues from disconnected fitting Release Knob and reconnect pilot tubing Turn control knob to off 5 Repeat 4 for each module in sequence Make sure that pilot tubing has been reconnected Wait five minutes then proceed To Light in accordance with boiler operating instructions attached to the boiler jacket On boilers equipped with standing pilots light the pilot of each boiler in sequence CHECK GAS INPUT rate to each boiler separately Input rate must not exceed that shown on Rating Plate For propane gas adjust regulator for a burner manifold pressure of eleven 11 0 inches water column For natural gas check input rate shown on boiler rating plate as follows 1 Consult local gas company for heating value of gas BTU Cu Ft 2 Set limit and operating control high enough so boiler will not shut off while checking input rate 3 All other gas burning appliances served by meter should be turned off temporarily while checking input rate 4 Check manifold pressure at 1 8 tapping on burner manifold
91. p olg PUP NO QMNVONVIS SI 440 102 331vM MOT 1A dOS WN V N3389 49 zm SONLI3S HOLIMS did 204 10INOO HLIM Q3 Ovd 3BnHOONH E9ZV 335 V 8 ddMInO3d Sv NollO3lOMd VOTH3AO SNVIW 193NNOOSId Xlddns AOd WV 3InBILS3A MIYOS LIHOVP OL TVNIAM3L M3AMHOJSNVMI HOH FYIM QNnONO N3349 HOVLIV AINO VQVNVO v ord HUM Q3ovid3H SS3NMVH ONIMIM ddAVO INIA IN3A 8537 NTIIOS 018 908 STAQOW NO TVNOLLdO 908 NO dddAVd INIA YSn IN3ivAnO3 5 MO NMOHS SV 38 HUM G30VI434 38 ISNAN LI z 13108 Ol daoviddd 38 ISNA 3oNvrIddv IHL HUM Qriddns Sv JAIM JHL JO ANY dl S3ION W 1 jm x Lo jus qasn 41 SdAV OL 9433 3 a L 4i Avia 351 awed sua Hou
92. pecific gravity c heating value 4 3 Gas Pipe Sizing Preferred Method 4 3 1 Figure 4 3 may be used for sizing pipes and fittings if all of the following conditions are met a the distance from the gas meter to the furthest module is no more than fifty feet and has no more than three ells and b the maximum supply gas pressure at the meter is 0 5 psig and c the maximum supply gas pressure drop is 0 3 inches water column and d the specific gravity of the gas is between 0 64 and 0 70 for natural or 1 50 and 1 63 for propane and e the heating value of the gas is either 1000 Btu F for propane 4 3 2 The procedure for sizing using Figure 4 3 is as follows 1 Total the Input MBH from figure 2 3 of all modules to be supplied by the gas pipe and or fitting to be sized 2 Locate this value in the left column 3 Move to the right to the appropriate gas column either Natural or Propane 4 Read the pipe and or fitting size Record this on the gas pipe drawing 5 The size of individual module supply piping A and the manual valve B should correspond to the Gas Connection size as tabulated in Figure 2 3 Record these sizes on the gas pipe drawing Example 1 Eight 809HE modules are to be piped in line similar to Figure 4 1 on natural gas Size the piping 1 Acheck of the conditions for this job shows the measured length of pipe from the gas meter to the furthest module is 45 ft with 3 ells The gas suppli
93. ping is that water temperature rise and flow rate thru each module in a primary secondary system is independent of the system temperature drop and flow rate Hence module piping to and from the manifold and 32 the module circulators on a primary secondary application may be based on a higher temperature rise thru the module say 30 or 40 F and downsized from the lateral connections The module piping valves and circulator for primary secondary pumping may be sized from the data in Figure 3 4 3 2 5 6 For parallel pumping applications module piping should equal the lateral connection sizes Refer to Figure 3 4 for module flow rates and pressure drop 3 2 5 7 The maximum flow capacity of the factory fabricated manifold is 265 GPM Ifthe system is based on a 20 F AT these manifolds could serve modules with a total input of 3400 MBH If the system is based on ad 30 F AT these manifolds could serve modules with a total input of up to 5100 MBH 3 2 5 8 If the optional flex couplings shown in Figures 3 1 through 3 3 are to be used they should be installed according to the instructions in section 3 16 3 2 5 9 If groove style couplings are to be used they should be installed according to the instructions in section 3 17 3 2 6 On fewer than four modules the designer may elect to use commercial schedule 40 pipe and fittings of a smaller size than the 4 pipe size of the fabricated manifolds Refer to 3 4 1 for the procedure u
94. r service 20 F to 275 F and are compatible with antifreeze and corrosion inhibitors Use of other gasket materials is not recommended and may result in loss of seal Laying Length of Coupling The axial spacing or gap between pipe ends joined by the optional flex couplings is variable within these limits Laying Length Gap Pipe Size Nominal Max Min 1 1 2 3 4 1 3 16 1 4 2 1 1 5 8 3 8 4 2 3 8 9 1 3 4 3 16 6 Misalignment In addition to the axial misalignment tabulated in 3 16 5 the flex couplings permit a 4 angular installation misalignment at each end 3 17 Installation notes for V groove couplings 3 17 1 Pipe End Preparation a 4 ends of fabricated manifolds since the 4 pipe b 3 17 2 3 17 3 of the manifold is schedule 10 the ends should be roll grooved DO NOT cut groove the 4 ends of the fabricated manifolds 1 or 2 laterals of fabricated manifolds with a manual pipe cutter cut 1 off each of the 4 long laterals to remove the pipe threads Do not cut the threads off the shorter 2 long lateral as this connection is intended to be piped rigid to locate the manifold during installation If the manifold is to be used for parallel pumping do not cut the threads off the laterals that are to be capped The laterals are schedule 40 so those intended for V groove couplings may be roll grooved or cut grooved Gasket Material Selection of a gasket material is of utmost i
95. re drop of the svstem 2 In a primarv secondarv pumping installation pressure drop thru the module does not add to svstem circulator head In a parallel pumping installation pressure drop thru the module does add to svstem circulator head load 3 40 F Temperature rise thru module recommended for Primarv Secondarv pumping MODULE WATER FLOW DATA FIGURE 3 4 42 FLOW OF WATER IN GALLONS PER MINUTE RU RT ZR lit 200 7 E d 4 E E _ Z Kol 400 600 id Li 100 150 200 a 40 60 SUDAN PU 15 20 6 8 10 E PE mia cr PL AZ MIA j HP AR DIE ToS LRL yw r t As 3did JO 1004 u3d S 3HONITIW NOILDIH4 15 20 30 24 L 4 A 150 A 400 600 HEAT CONVEYED PER HOUR MBH WITH 20 F TEMPERATURE DROP FRICTION VS WATER FLOW IRON PIPE DOWN VERTICALLY TO UPPER LIMIT OF UNSHADED AREA 3 PICK OFF MINIMUM PIPE SIZE ON DIAGONAL LINES SLOPING UPWARD TO THE RIGHT 4 PICK OFF WATER TO USE THIS FIGURE 1 ENTER HORIZONTAL SCALE AT DESIRED FLOW 2 MOVE VELOCITY ON DIAGONAL LINES SLOPING UPWARD TO THE LEFT FIGURE 3 5 43 44 V F FLOW OF WATER IN GALLONS PER MINUTE o 2 4 6 20 500 1000 7 Sb asp WA LSA 600
96. reas required from figure 2 11 It is a confined space but outdoor air is readilv available through vents in the exterior wall Use the equation for Confined with Outdoor Vent MBH Input 2 710 677 5 sq in 4 0 of free ventilation area required Select the type of vent system individual or combined For an individual vent system use Figure 2 12 to determine the vent size s In this example the height of drafthoods above the floor 32 77 33 66 55 feet The least total vent height is calculated from the drafthood up to the top of the vent pipe which must be at least two feet above the roof 12 Ft Ceiling Height 5 Ft Drafthood Height 2 Ft Ceiling Thickness 2 Ft Vent Extension 10 Ft total Vent Height Enter Figure 2 12 at H 10 Ft and move right to L O Ft Move right to 809HE column and find 8 diameter for type B pipe and 10 for single wall pipe Continue to the right on the same line to 809HE column and find 9 diameter for type B pipe and 10 for single wall pipe Mark these sizes on the drawing of the boiler room If no more than two 90 elbows are used in the system no corrections are necessary The design is complete If a combined vent is desired such as in Figure 1 5 use Figure 2 13 to find the common vent size CV Enter Figure 2 13 at 2710 MBH input Move right to the column 10 Ft and find common vent diameter CV 26 for type B pipe and single wall is not recomm
97. s D which is 12 Hence C should be recorded on the drawing as 4 x 4 x 17 12 In like manner 4 3 1 C 3x24x1 C623x3x1 2 x2x1 5 3x3xl 2 1 1 13 Record all pipe and fitting sizes on the gas pipe drawing for reference during installation 4 4 Gas Pipe Sizing Alternate Method 4 4 1 If all of the conditions for using Figure 4 3 are not 52 met the following procedure must be used to size gas piping 1 Determine the total equivalent length of pipe from the meter to the furthest module by adding to the measured length the equivalent length of each fitting from Figure 4 4 Straight thru flow through a tee is not considered a fitting 2 Determine the actual cubic feet of gas to be carried by the main segment by dividing the BTU requirement by the heating value of the gas 3 Determine the equivalent cubic feet of 60 specific gravity gas by multiplying the actual cubic feet from 2 above by the appropriate specific gravity multiplier from Figure 4 6 4 Enter Figure 4 5 under column for the total equivalent length of pipe as found in 1 above 5 Read down until finding a number equal to or greater than the equivalent cubic feet from 3 above which the main segment is required to carry 6 Read across to the left hand column and pick off 4 5 the minimum pipe size required Example 22 Eight 809HE modules are to be piped in line with propane from a tank source 115 feet from the furthest mo
98. s of pipe and pump causes the system designer to select the minimum pipe size based on a maximum pressure drop and then select a pump s to meet flow and pressure drop requirements of the total system It is recommended that pipe sizes be selected in the unshaded portions of Figure 3 5 or 3 6 The minimum pipe size will occur on or close to the upper limit of the unshaded areas Example Find the minimum main size and corresponding friction for three 808HE modules using iron pipe and a 20 F temperature drop Solution 1 The output of three 808HE modules is 3 x 410 x 80 984 MBH Refer to Figure 2 3 for module input and Figure 2 1 for input to output multiplier 2 Enter Figure 3 5 on the lower horizontal scale at 984 MBH and move vertically to the upper limit of the unshaded area 3 On the lines that slant upward to the right read the pipe size In this case the pipe size is greater than 2 but less than 3 Select the larger of 3 4 From the point in 2 above move down vertically to the 3 pipe line and horizontally to the left hand scale Pick off 300 mill inches per foot friction In calculating the total equivalent length of pipe it is necessary to consider the additional resistance of elbows Figure 3 7 shows the equivalent lengths The total equivalent length of pipe in a circuit is the measured length plus the equivalent length of all elbows in that circuit The total equivalent length of the longest circui
99. s plus the lower surface temperature of single wall pipe makes condensation and the resulting corrosion very likely If a masonry chimney is desired the minimum cross sectional area of the chimney is found in Figure 2 15 as a function of the vent diameter Figure 2 16 shows the area of standard chimney tiles by size The following is an example of the recommended design procedures Example 3 story apartment house needs a total boiler capacity including service water hating of 1 849 500 Btu Hr net rating The boiler room is in a one story added portion of the building of non combustible construction similar to Figures 1 6 or 1 7 and is 20 feet long 10 feet wide with a clear ceiling of 12 feet No chimney is provided Select and size the vent system 1 Refer to Figure 2 1 to convert net rating to input Input 1 849 500 x 1 44 2 663 280 Btuh 2 663 MBH 2 From Figure 2 2 find the closest recommended module combination having an input of 2663 MBH It is found that an input of 2710 MBH is the closest size and is composed of five 809HE and one 808HE modules Sketch approximate module locations on the boiler room plans using minimum clearances recommen ded in 2 4 above In this case there is space to 3 4 5 6 lav out five modules in line along one wall on 40 centers with ample service clearances front rear and sides per Figure 2 10 Determine the ventilation a
100. sed to size a field fabricated manifold It should be noted that in the case of primary secondary pumping the return line to each module should not be down stream of the supply line from that same module to avoid short circuiting of heated water within that module 3 2 7 Ona scaled drawing of the boiler room layout the selected water manifolds and mains 3 3 STOP VALVES Another prime reason for using modular boilers is that of servicing without shutting down the entire system Any individual module can be shut down for cleaning or repairs without interrupting the operation of the remaining modules This is true of electrical components and the gas components because most codes require a service shut off at each module A mistake 15 often made by not installing water stop valves at the headers for each module By installing stop valves at the headers for each module it becomes easy to perform repairs to the water side of the module such as leaky fittings control wells and pumps Without stop valves each such service call results in the aggravation of a system shut down In addition it takes time for the serviceman to drain before the repairs and then refill and vent the system after the repairs That additional service time may cost the owner more over the life of the system than the cost of the stop valves at the time of installation Finally the use of water side stop valves on each module is required by some codes in order to exclude
101. sizing the boiler added capacity Calculate boiler added capacity by multiplying factor from 3 by water heating load Total the space heating load and the boiler added capacity and convert this total load to total input by using the 1 44 multiplier from Figure 2 1 Select modules from Figure 2 2 using this total input 7 Convert the input of one module found in Figure 2 3 to Gross Output by using the 80 multiplier from Figure 2 1 8 Divide water heating load by gross output of one module to determine the number of modules to be used in the water heating circuit Example 1 An office building has 12 basins and 2 slop sinks and a space heating load of 1 403 500 Btuh Size the water heater and boiler Solution 1 12 basins x units 9 Fixture Units 2 slop sinks x 1 units 3 Fixture Units Total 12 Fixture Units 2 In Figure 3 16 using curve for office building find that for 12 Fixture Units 6 gpm is required 3 Select water heater at 6 gpm and 40 140 F temperature rise 4 Calculate water heating load in Btu 6 x 8 33 x 60 x 100 299 880 Btuh 5 Calculate ratio Water Heating Space Heating 299 880 22 1 403 500 From Figure 3 17 find that for a ratio of less than 25 the boiler added capacity is 0 Convert the total load 1 403 500 0 Btuh to total Input 1 403 500 Btuh x 1 44 2 021 MBH Input 1000 Btuh MBH 8 Enter Figure 2 2 at 2 046 MBH Input closest Input over 2 021
102. stablish the retail price will be the published price as set forth in Burnham Commercial Repa Parts Pricing where the heat exchanger last appeared or the current retail price of the then nearest equivalent heat exchanger whichever is greater TERMS AND CONDITIONS 1 Applicabiltv The im ed warranbes set forth above are extended only to the original owner at the original place of installation within the United States and Canada These warranties are applicable only to boilers parts or accessories dosignated as commercial grade by Burnham Commercial and installed and used exclusively for purposes of commercial space heating or domestic hot water generabon through a heat exchanger or a combination for such purposes and do not apply to residential grade products or industrial uses 2 Components Manufactured by Others Upon expiration of the one year limited warranty on commercial grade boilers all boiler components other than heat exchangers manufactured by others but furnished by Burnham Commercial such as oil burner circulator and controls will be subject only to the manufacturer s warranty if any 3 Proper Installation The warranties extended by Burnham Commercial are conditioned upon the installation of the commercial grade boiler parts and accessories in strict compliance with Burnham Commercial installation instructions Burnham Commercial specifically disclaims Kability of any kind caused by or relating to improper insta
103. stand all instructions including all those contained in component manufacturers manuals which are provided with the appliance before installing starting up operating maintaining or servicing this appliance Keep this manual and literature in legible condition and posted near appliance for reference bv owner and service technician These boilers require regular maintenance and service to operate safelv Follow the instructions contained in the Series 8H 8HE Installation Operating and Service Instructions Installation maintenance and service must be performed only by an experienced skilled and knowledgeable installer or service agency All heating systems should be designed by competent contractors and only persons knowledgeable in the layout and installation of hydronic heating systems should attempt installation of any boiler It is the responsibility of the installing contractor to see that all controls are correctly installed and are operating properly when the installation is completed Installation is not complete unless a pressure relief valve is installed into the specified tapping on the supply manifold located on top and at rear of appliance See Section III Paragraph 33 e of the Series 8H 8HE Installation Operating and Service Instructions for details These boilers are NOT suitable for installation on combustible flooring Do not tamper with or alter the boiler or controls Retain your contractor or a competent servic
104. t L9 90 E 3H018 e al 55 0Ze m 3H608 3803d IVNOLLHO TATI ann al 05 Bee 001 3H808 MOSH dnnd al E SZ HZ08 QN318 silvi3d 335 9 6 8 ESZ 9 L H908 ua WALSAS MOlVNVd3S HS08 MO W3lSAS VAOW3M Zit E be x W3LSAS 1OMINOO 1 ONIdid IZIS Wd aasn 41 ajaa kol han 7300W 5131108 5 Addns dnd 119100 33108 27108 TWNOLLIGQV ie WBISAS anios onna anma 5039 OE 4 b GI 310N 335 qasn SNIZIS GN318 QOMT W3lSAS i AdISAS 4O01v44d4S WALSAS 1OdLNOO H WALSAS lVAONW3M HIV AN lt amog 3AWA 3 H INASSINA ANVL NOLLO3NNOO NOISNVdX3 Alddns i ASVaHdvIQ JOLVAVAIS av M31VM 3 38019 qoo Alddns JAVA 38019 HIVA 14 1 0102 AHVAIHd OL ATVA Cak anes MNVl NOISNVdX3 3d1SS dd lt 143108 NO8 3435 G3LNNOW 30 ABE OL LI Jaona alv 43108 WONJ QMVONVIS OL N3NIVHIS INJA HLM yOlvdvd3s aly n pl Alddns d rg ty INJA 404 pu NNOO 3ATVA 38 55384 39 J34N9I4 dWnd W31SAS SSVd A8
105. t burn 3 Heat gas will not urn until its temperature is raised to its ignition point approximately 1100 1200 F A gas burning pilot open flame or electrical means spark is used for the initial ignition after which the flame itself provides the heat needed to sustain combustion If any of the three are taken away combustion cannot take place Because the mixing of air and fuel is not 100 complete more air than is actually needed called excess air must be supplied to the appliance in order for burning to be complete This is shown in Figure 1 1 If the supply of fresh air is inadequate or is not contin ually replenished as it is used up carbon monoxide CO and Hydrogen as well asthe products of combustion shown in Fig 1 1 may be produced This is undesirable since carbon monoxide is toxic and some times lethal even in small quantities In addition to the fresh air required for combustion fresh air is also required to dilute the flue products so that the resultant flue gas temperature 15 reduced to what 18 considered a safe level Thus a total of 16 cu Ft of air may be required for each cu ft of gas burned 12 5 cu ft for the combustion process and 3 5 cu ft for the dilution process VENTILATION Fresh air requirements for the heating plant will vary with the space in which the plant is located as described and illustrated in succeeding paragraphs Reference to free area of air inlets is made in the text sinc
106. t in the system is useful in determining the head requirement of the system pump COMPRESSION TANK Selection of the compression tank must be based on the following items a volume of water in the system b initial fill pressure of the system c maximum operating pressure of the system d maximum operating temperature of the system It is necessary to calculate the volume of water contained in the total system including piping modules and terminal units Figure 3 8 can be used to determine the volume of the piping by measuring the length of each size of pipe and multiplying by the appropriate factor from Figure 3 8 Example Find the water volume in the piping of a system having 40 of 3 pipe 72 of 2 pipe and 52 of 14 pipe Solution From Figure 3 8 obtain the gallons ft from each size of pipe and multiply by the length of that size of pipe 1 Copper 065 gal ft x 52 Ft 3 4 Gal 2 Copper 161 gal ft x 72 Ft 11 6 Gal 3 Copper 357 gal ft x 40 Ft 14 3 Gal Total volume in piping 29 3 Gal 33 3 6 1 1 Use Figure 3 13 to calculate the volume of the modules Example Find the volume of water in four 806H modules Solution From Figure 3 13 find that the water volume of one 806H is 13 9 gallons and multiply by the number of modules 13 9 x 4 55 6 gallons in the modules 3 6 1 2 The water side of terminal units must be known in order to determine their volume Tubular un
107. tN L ZZ AALY i 3H3H M3MOd XlddV LON OQ GT kd HOLIMS 1 1 l 1 1 dns 5 35 4 i ano Z1 AlddNS M3MOd o9 0Z Y 65 335 SSINHVH ONIMIM dddAyd 1 535 N3dAva 1N3A SA HOLIMS 534 HOLIMS 110 1104 9 9 ONIdId AHVONOO3S AVMIdd 13 OVLS YNO4 Z HVINMIL 7INQOW QA 2 Ad AN e Ad aNa 9 Ave 9 Ave IOT98S g 6 xavas Wo MOTA HH qa 3 JOVAL 31 HUM AVEO AvaS N3349 NMoua ama ovia BI HM Hao A9 Mo 8 TA 900z NOLVINSNI E 38 dQNVHIS Z MIS Z 4S OMV BL 3ZIS 2097 718VO YOSNIS YILIN TISWA3NOH 3MI WMV NGL ML 3dAL OMY 3ZIS 39VL10A MIA WMV MAL YO ML OMV TL 3715 3 INN 3MIM GAQNVALS XZ10 3dAL OM Z 8 3215 39VL10A JMM AMV MAL 3dAL 9MV 8L 2215 3 MOT VH
108. the proper gap between pipe ends 1 or 2 laterals of fabricated manifolds with a manual pipe cutter cut 1 2 off each of the 4 long laterals to remove the pipe threads Do not cut the threads off the shorter 21 long lateral as this connection is intended to be piped rigid to locate the manifold during installation If the manifold is to be used for parallel pumping do not cut the threads off the laterals that are to be capped c Deburr and clean pipe ends d Special surface finish on pipe is not required Surface to be free of deep scratches gouges dents b wm etc 3 16 2 Joint Installation a Install retainer 1 gasket 2 and sleeve 3 on one pipe end or manifold in sequence shown below Retainer Gasket Sleeve Gasket Retainer QAS b Install remaining retainer 4 and gasket 5 on other pipe end or manifold c Position retainer 4 and gasket 5 to proper pipe insertion depth D Pipe Si Pipe Insertion Depth pe size Nominal Max Min 1 1 2 1 3 8 1 62 1 16 2 1 1 2 1 84 1 18 4 2 1 16 2 44 1 74 d Slide sleeve 3 to gasket 5 and move gasket 2 and retainer 1 into position as shown Pipe must be inserted to proper depth D into both gaskets 3 16 3 3 16 4 b d 3 16 5 ee D 4 4 Coupler Installation Install both V couplings encompassing the retainer gasket and sleeve Do not tighte
109. ule Data Water Side 47 14 Water Piping for Service Water 48 15 Service Hot Water Demand Fixture Units 49 16 Service Hot Water Flow Rate 49 17 Sizing Factors for Combination Heating Service Water 50 SECTION 4 0 GAS PIPING i u uay e a 51 Fig 4 1 2 Recommended Gas Supply Piping 54 amp 55 3 Gas Pipe Sizing Table 56 4 Equivalent Length of Fitting amp Valves Gas Pipe 56 5 Maximum Capacity of Pipe 57 6 Correction Factors for Specific Gravity 57 7 Support of Piping LL 58 8 Moisture and Dirt Trap 58 SECTION 5 0 CONTROLS nn 59 Fig 5 1 Tekmar 261 Two Stage for Parallel Piping 61 2 Tekmar 261 Two Stage for Primary Secondary Piping 62 3 Tekmar 263 Two Stage El for Parallel Piping 63 4 Tekmar 263 Two Stage for Primary Secondary Piping 64 5 Tekmar 274 Two Stage for Parallel Piping 65 6 Tekmar 274 Two Stage for Primary Secondary Piping
110. used 2 7 1 2 8 2 9 If the minimum ceiling height is available proceed to size the common vent CV in Figure 2 13 Enter the left hand column at the desired total input and move right to the column corresponding to vour H least total vent height and read the diameter of the common vent If more than one elbow is used increase one pipe size for each elbow more than one Proceed to size the connector rise diameter CN by entering Figure 2 14 at H available and move right to the column headed F On the line for available connector rise move right to the CN columns headed bv the module sizes selected in 2 4 above Read the connector diameter s Record these sizes on the plans of the boiler room If a tapered or graduated manifold vent is desired use the same procedures above for sizing the intermediate manifold diameter but for the total input of the modules served by intermediate tapered or graduated manifold vent Within Figure 2 12 are several entries of NR This means that the combination involved is not recommended The most common reason for a combination to be designated NR is that condensation inside the vent pipe is likely to occur This is particularly true of single wall vent pipe Combinations outside the shaded area in Figure 2 13 are also not recommended for single wall vent pipe Additionally single wall vent pipe should not be used with five or more modules because the dilution from the unfired module
111. ventilation opening required Reference to Figures 1 2 thru 1 4 should be made in order to understand the types of installations described in the headings of Figure 2 11 Record the free ventilation area required on the plans of the boiler room and sketch the openings like those shown in figures 1 2 thru 1 4 respectively Individual vents as shown in Figure 1 7 are highly recommended if the job site conditions allow Individual vents are particularly useful in boiler rooms having a low ceiling height Individual vents are easy to design and in many cases result in the lowest installed cost They also are the most dependable in operation and less susceptible to condensation than are combined vents To size individual vents use Figure 2 12 with the vent height available the lateral length size of module and type of vent pipe Combined vents will perform satisfactorily if strict design procedures are followed Referring to Figures 2 4 thru 2 9 note that a connector rise F of at least one foot is required A connector rise F of three feet is desirable Thus to make the desired connector rise and have space for the manifold vent the minimum boiler room ceiling height must be equal to 325 Module Height Drafthood Height Minimum Connector Rise CV Manifold Diameter 6 Clearance Minimum Ceiling Height If the minimum ceiling height above is not available common vents will not perform satisfactorilv and should not be
112. vidual Vent Table nn 25 13 Common Vent Table 23 amp 27 14 Vent Connector Table 28 15 Vent Diameter vs Chimney 29 16 Area of Masonry Flue 30 SECTION 3 0 WATER PIPING Fig 3 1 Water Piping for Parallel 39 2 Water Piping for Primary Secondary Pumping 40 3 Recommended Manifold 41 4 Module Water Flow Data nn 42 5 Friction vs Water Flow Iron 43 6 Friction vs Water Flow Copper 44 7 Equivalent Length of Pipe for 90 Elbows 44 8 Volume of Water in 6 45 9 Compression Tank Selection Table 45 10 Correction Factor for Compression Tank Selection 46 LIST OF FIGURES continued PAGE SECTION 3 0 WATER PIPING continued Fig 3 11 Net Expansion Factors for 46 12 Acceptance Factors for Diaphragm Type Tanks 47 13 Mod
113. vstem Flue gas spillage can occur Unsafe boiler operation will occur 1 4 1 DRAFTHOOD The flue outlet of a heating appliance such as the Series 8H 8HE module cannot be connected directly to the vent system for the following reasons a The amount of air drawn thru the combustion chamber would vary with the height of the vent pipe Hence there would be little or no chance of maintaining the same air flow rate thru the appliance for the variety of installation conditions which invariably are encountered b s There would be no way to compensate for variable wind conditions encountered at the terminal of the vent If wind conditions created a negative pressure at the vent terminal this negative pressure would tend to increase the flow thru the vent system this phenomena is referred to as updraft If the wind created a positive pressure at the terminal the flow through the vent system would be retarded or reversed this condition is referred to as downdraft c There would be no avenue of escape for the flue gases in case the vent became blocked d Flue gases if undiluted could reach temperatures which would create a potential fire hazard if the flue gases were to strike flammable surfaces To overcome all of the deficiencies outlined above an AGA listed vertical to vertical type of drafthood is furnished with each Series SH 8HE boiler see insert of Fig 1 5 The inlet opening of the drafthood 15
114. waMOd A0ZL I 1 QA nonoa pi 1 nezze L I TI3MA3NOH 1 1 iral M 1 _ a foal HALNJO 1OHINOO za Li dg8Zgd 5 SaaH1O 18 1 1 1 1 ONIMIM 471 04 1 1 1 1 1 1 1 NOLLVIASNI I TIN HUM 9801 WMv MaL 3dAL 381 OMY 8L A0ZL 950 IHM WAW MAL 3dAL 2215 MOT ko WMV HAL ML OMW Y 3ZIS 1 1 1 1 SONLLISS I usn 4 TOMINOO HIM AVAIL 335 E W31SAS ONILVAH WOM SY Lid TWNOIS QNvA3O IVAH SNV3N 193NNOOSIq XIAANS WV HOLOVINOO 40 AYTAY Sn bea 1 1 sx va vid dfnd ax EN ofa SadAnP HUM C3OVId3N SSINUVH ONIIM INJA ATNO ddAVQ INIA SSI STIOB NO 1 1 1 1 NNOHSNYaL 80 8 8908 STAGON NO A908 T4QOW NO M3dAVO INIA WSN Z E II ssvio HOLI INTTVAInO3 SL HO 1 Md 30AHHS NMOHS Sv 381 HUM G3ovid3s 38 1SnA C3ovid3M 38 ISN 1 3ONvriddv 3 HLIM q TddnS SV TVNIDIHO 3HL JO 41 ON 970N 4 ON ON E SION amioga miog mioa saioa yiog OL OL OL OL OL OL Fog Ill jl OL GL 43 44d d 1 I 1 1 1 1 1 1 IAS 3 QqHS
115. wall metal vents unless special precautions are taken with the latter 3 type B vents are less prone to condensation and corrosion than single wall metal vents 4 type B vents are lightweight easy to handle and assemble Manufacturer s instructions relative to installation of their product should be followed as long as they comply with the National Fuel Gas Code and or local codes Some items to consider are 1 support of lateral runs so that vent pipe does not sag 800 NITROGEN 100 CU FT CARBON DIOXIDE CO 200 CUFT WATER VAPOR H2O 250 CU FT EXCESS AIR 1350 CU FT PRODUCTS OF COMBUSTION ALL VOLUMES AT 70 F COMPLETE COMBUSTION OF NATURAL GAS FIGURE 1 1 FIRECLAY TILE LINED CHIMNEY TEE CAP 12 34 FT MIN AR GAP CLEANOUT OPENINGS FOR VENTILATION 1 SQ IN PER 1000 BTU HR OF TOTAL INPUT OF APPLIANCES ADEQUATE VENTILATION IN THIS ROOM LINE CONFINED SPACE VENTILATION AIR PROVIDED FROM INSIDE OF BUILDING FIGURE 1 2 FIRECLAW TILE LINED CHIMNEV OPENINGS FOR VENTILATION 1 SQ IN PER 4000 BTU HR OF TOTAL INPUT OF APPLIANCES lt AIR GAP CLEANOUT BOILER ROOM CONFINED SPACE VENTILATION AIR PROVIDED FROM OUTDOORS FIGURE 1 3 PHI SCREENED OPENINGS MESH NOT LESS THAN 1 INCH SHALL NOT BE

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