Bryant 245 User's Manual
Contents
1. Figure 4 Fasten Bases END CLOSING PLATES amp BACK CASING SUPPORTS Fold the insulation into the front angle of each corner post before beginning the installation of the end closing plate Allow 3 4 inch of insulation to extend beyond the outside edge and above the top of the front post This is to seal the expansion space between the base and the battery See Figure 5 The end closing plate is fastened to the base by three 5 16 inch cap screws The two cap screws in the front post screw into weld nuts on the end closing plate The back of the closing plate is fastened to the base by a 5 16 inch cap screw and nut through the top hole in the rear angle of the base See Figure 5 The back casing support fastens to the base by the use of a 5 16 inch sap screw and nut with the notches tight against the edge of the rear post See Figure 5 INSULATION Figure 5 Install End Closing Plate EH 245 EP 03 2008 WED 05 14 PM RLCS STARTING BATTERY POSITION Whenever possible the assembly should be started with the left end as this is always a battery of two sections Place the end section or battery on the end of the base with the parting line of the web 1 4 inch out side the front edge of the top angle of fhe base Also the parting line on the back of the section should be 1 4 inch from the edge of the rear top angle of the base See Figure 6 Be sure that the parting line of the intermediate sections f2. B 12 Mal tome 18 7 13 2 2 11 114 17 13 154 1 18 2144 104 1159 18 1189 Bs J 1151 1 2 16 wig 121041706 13 1584 Ee 109 M04 188 18 way 2 6 fi z 7 16 Ju JA TA 194 154 114 204 8 MA ie 184 Ina 2 2 2618 188128 9 4 154 204 19 1 184 1184 Me 2 6 i 2 28 18 143419 154 154 21 214 18554 1898 1890 125 3 1 16 2 2 2 18 1508 150518 154 154 ha 21 104 1826 18 wa 7 1 2 1874 ipa fine niy ID Hs fio fing MA 19 4 14 2 QR is 18 NIA ad S Sx we pe s isis IN RA 208141 5112 0 12244 172 88 158 154 14 214 21 120 184 184 184 18 12V 139 154 4 1 2 18 1 Flue Collector sizes shown are based on having the end of the collector more than 6 feet from the chimney and no more than one 90 elbow in the connection to the chimney Also adequata combustion air must be provided If low chimney baight is mandatory vertica stacks directly off the flue collar on the boiler may used providing they are at least 6 feet height and that they clear surrounding obstruction by at least 2 feat to avoid down drafts EH 245 22 SHP 03 2008 VED 05 13 PM RLCS FAX No 317 240 5665 003 MAIN GAS SUPPLY CONNECTIONS The following recommendations should be followed in bringing the main gas supply line to the boiler
3. 2 The pressure relief valve should be installed in the supply piping as close to the boiler as pos sible BOILER WITH REFRIGERATION SYSTEM VALVES A amp B OPEN FOR HEATING CLOSE FOR COOLING VALVES D CLOSE FOR HEATING OPEN FOR COOLING Figure 17 Refrigerant Diagram When the boiler is used in connection with a refri geration system it must be installed so that the chilled medium is piped in parallel with the heating boiler with appropriate valves to prevent the chilled medium from entering the heating boiler An example of such piping is shown in Figure 17 Caution Note It is recommended that a relief valve be installed between Valve A and the boiler or Valve B and the boiler This relief valve should preferably be on the boiler itself The relief valve will protect the boiler from expansion pressures during the cooling season 13 FAX No 317 240 5665 013 INSTALL HEADER AND PIPING Complete the boiler piping water steam lines pay ing patticular attention to the following recommen dations for steam boilers 1 The return must be piped to both ends of the boiler 2 The minimum steam header proportions should be as shown in Figure 18 3 Add skimmer tee as noted Never install a shut off or steam valve between the pressure relief valve and the boiler On low pressure boilers the 5 Code requires that a pressure relief valve or valves be installed The valve s
4. UN 1 Run a separate gas line as direct as possible from the gas source to the boiler The size of the pipe should be as large ag practical to minimize the pressure loss consult local utility The pipe size should never be smaller than the inlet to the main manual gas shut off valve supplied with the boiler PILOT SUPPLY TAPPING 2 Mount the main manual shut off valve approxi mately 5 feet above the floor level The tapping for the pilot supply valve should be on the inlet supply 4 GROUND UNION side of main shut off valve See Figure 1 MUST BE IN SUPPLY LINE 3 Provide a drip leg below the main manual shut off valve Extend it to the floor to help support the main supply piping In addition support the supply ERES pipe with adequate hangers or straps See Figure 1 TO FLOOR 4 Provide a ground joint union in the line between y the main manual shutoff valve and the gas burner controls See Inset Figure 1 Figure 1 Gas Piping GAS CONTROLS Table I shows the four gas control types that will be used on the 245 Boiler The D4 controls to used on natural gas only D5controls can be used with manufactured or natural gas D2 controls are 2 This boiler is not approved for use on combus for propane only and 06 controls are for natural gas tible floors on the 4 5 and 6 size boiler LOCATION OF BOILER 1 The boiler should be as centrally located
5. Install Clean Dur anale tee Pr this process to complete the pilot header assembly LIMIT FOR WATER BOILER e The screw in the limit well must be accessible with end casing panels in place Piace the limit in the well and tighten the screw The limit will always be in the tight end section See Figure 10 7 245 EP 03 2008 WED 05 15 PM RLCS FAX No 317 240 5665 008 FOR FITTING SIZES amp NIPPLE LENGTHS SEE CHART ENCLOSED WITH RATING PLATE DM TI ADD TEES TO NIPPLES AND TIGHTEN TO WIT i TURN OF FINAL POSITION Figure 11 Assemble Manifold Header gt C Figure Figure 11 2008 WED 05 15 PM RLCS FAX No 317 240 5665 P 003 INTO ESSER AND REPEAT _ ASSEMBLY OF MANIFOLD HEADER When assembling sizes 4 5 and 6 follow Steps 1 and 2 listed below Refer to Manifold Installation Diagram packaged with Boiler Rating Plate for the placing of various lengths of pipe and fittings To assemble 1 Starting from end of boiler opposite controls dope the short nipple and place in the inlet of the manifold and tighten securely 2 See Figure 11 Add elbow tighten securely to where inlet of elbow is parallel to the manifold Add the nipple specified by the manifold header chart For the 4 5 and 6 sizes this places the piping out side the casing Add 1 2 of a union then c
6. 245 SEP 03 2008 VED 05 18 PM RLCS main burning However the electrical circuit to seats and the main gas flow is shut off The weight on the diaphragm is carefully sized to ensure that no gas will flow to the burners unless there is sufficient pressure differential BRYANT AUTOMATIC PILOT D4 The pilot assembly includes a normally open switch wired in series with the Bryant diaphragm gas con tro valve The switch is at the free end of the monometal element assembled so that the fixed end is positioned at the pilot flame Heat applied to the fixed end of the monometal element causes the fiee end to move This closes the switch and compl tes the electrical circuit to the control valve The cir cuit will close within one minute It will remain closed as long as there is normal pilot flame While closed the boiler is under the direct automatic con trol of the room thermostat or other operating con trol long as the main gas manual shutoff valve is open f the pilot flame goes out for any reason the monometal element will cool and the free end will move back to its original position This breaks the electric circuit and the Bryant diaphragm gas con trol valve will close This shuts off the gas supply to the main burner PILOTS WITH THERMOCOUPLE ELEMENT The D2 and D5 gas controls have pilots equipped with thermocouple elements The pilot flame should surround the tip of the ther mocouple It should also extend
7. end closing plate EH 245 FAX No 317 240 5665 006 FRONT JACKET p SUPPORT F Figure 7 Assemble Draft Hood 3 Fasten right end closing plate to diverter and baffle 4 Install the hold down clip and the jacket clip See Figure 8 5 Finish and putty For combination diverters 1 Fasten end plate and next diverter to first diver 52 ter at the same time 2 Finish and putty 26 FAX No 317 240 5665 P 007 Figure 8 Hold Down Clip amp Jacket Clip CLEAN QUT PANELS 1 Liberally apply boiler putty which is supplied at the junction of all sections front back and top Putty should also be applied around the sections the base and end closing plates ES 2 Install clean out panels and tap them into place Un b or Apply putty around the clean out panels See Fig gn ae BE TAPED 9 ANIFOLD DER GLEANOUT PANELS PILOT HEADER CONNECTIONS The pilots must be connected by a tube header for all boilers of two or more bases Propane will use 1 4 inch tube all sizes natural gas will use 1 4 inch tube as will manufactured gas up to the 23 size From the 23 on 3 8 inch tube will be used To assemble the pilot header add an elbow to the pilot tube on the smallest base Cut a piece of tubing long enough to fit between the first pilot and the pilot in the next base To the next pilot add a tube tee and place the tube between the elbow and Figure 9
8. 4 6 4 6 4x4 4x6 4x 4x4 6x2x6 4 24 4 2 Refers to Boilers with 4 amp 6 tappings Two system risers used on Size 41 EH 245 14 Skimmer Tee should be placed on end of boiler having adequate clearance for access O SHP 03 2008 VED 05 18 PM ELCS ELECTRIC WIRING All electric wiring should be in accordance with the National Electric Code and any local or gas company requirement which may apply Wire the controls as shown in Figures 19 through 25 All external wiring must be protected in accordance with local and national codes The witing from the high temperature limit must be fastened to the clips in the end panels All wiring to the pilots and pilot relay must be taped securely to the manifold header The wire furnished is 105C low energy wire with 4 64 insulation A NEC class 2 transformer supplied must be used in the control wiring of the Model 245 Boiler FINAL INSTRUCTIONS After the installation is complete including the con nection of all gas and water piping and flue con nections the boiler should be ready for operation and adjustments Read carefully the following section of Controls and Adjustments 2 Then light the boiler in accordance with the Lighting Instruction Plate attached to the boiler 3 After the boiler is operating make adjustments as required Refer to section on Controls and Ad justments See following
9. 5 and 13a EH 245 Figure 13 Install End Casing Panel Next rotate the panel toward the front of the boiler placing the top flange of the end panel in the retain ing clips on the draft diverter Place screws into the end panel through the holes provided in the flue collector and manifold bracket See Figures 7 and 14 Place rating and name plate on end panel For steam boilers attach water line plate in its proper location on control end See Figure 2 Install a drain cock in lower tapping on each end of boiler install front casing panels 10 c EP 03 2008 WED 05 16 PM RLCS EDGE Figure 130 OF FRONT GASING SUPPORT CLIP r7 1 022 245 SCREW HOLDING END CASING PANEL Figure 14 Complete End Casing 11 FAX No 317 240 5665 P 011 INSTALL GAS CONTROLS AND COMPLETE GAS PIPING 1 The Bryant diaphragm gas control valve is ship ped as part of an assembly consisting of the valve a controller regulator when required and piping Install a half union on the outlet nipple of this assembly 2 Install the other half of the union on the control end of the manifold header and connect the valve assembly to the manifold header 3 Continue the piping to the main gas supply Follow all local codes and ordinances and refer to the recommendations given on Page 3 of this in struction manual 4 Connect the pilot supply tubing between the manual pilot sh
10. 548 41 SIZE ONLY a 9 DIA Dem i WATER LINE STEAM BOILERS 46 I 5 i i I e 1 FLOOR LINE E E i 4 n d E DIMENSIONAL DATA i8 28 52 a2 g 2f 8 Sz E2 58 55 E za 8 ec D e 27 L L pU Nat Mid Prop Nat Mf Prup Nat Mid Prop Nat Mid Lbs 79 206776 19 95 10 Eu 1 Bla 316 7A 7 634 95 10 11 104 4 1 HM 4 M TA Se a 1 Hom s 38 CATAL The 74 9v 08 19 EA 10 i we 42 50 7 7h 10 10 196 876 17144 2 1 14 10 MA D 0 Dh Bana 7 1 i 10 50 5966 7 64 dish 08 21 pioi 16 i iu 53 634174 6 15 10 11 211 MZ 184 2 2 12 ST 808174 7 154 MES n 2106 8 10 3 1 2 94 71 2 1500 0 135a 21 106 LA i I LU B4 7494 798 15 109 21 BAe 184 3 14 2 784 Th 1 10 DA 20 18 14 82 7 13 154 18 1 1485 114 8T 4 P 2 89 9255 6 13 15 11 18 21 87 1416 118 18 4 1 14 2 14 99 128 154 IB 214 18 18 EHA 1 m mx 104 17 6 134 15M 18
11. H value of 7 to 8 Soda is difficult to remove and requites a lengthy process of repeatedly flushing the boiler to assure complete removal If soda is insisted upon it is recommended that a solution of one pound dissolved in a pail of hot water be prepared for each ten gallons of boiler water Check water capacity of boiler Pour the solution in amy convenient opening at or above the flow tapping Fill boiler to flow tapping and adjust fire manually to maintain simmering for five or six hours Increase fire to build up five pounds pressure and blow down boiler Blow down boiler again as in Step 2 then flush continuously until it is certain that boiler is free of the soda After the boiler has been thoronghly cleaned add fresh clear water to the proper level in the heating system If the degree of acidity or alkalinity of the water must be adjusted it is recom mended that the water be mildly alkaline not ex ceeding a pH value of 7 to 8 EH 245 812 03 2008 12 0 05 18 PM RLCS BEFORE LIGHTING FAX No 317 240 5665 P 018 Lighting the Pilots Natural Gas D4 All Gases 1 Make certain that the boiler is properly filled 1 Open the manual pilot valve and allow time for with water air to be purged from the line 2 Light all pilots immediately with a match or 2 Open all valves in the supply and return mains taper of heating system 3 Set the thermostat or operating control below Natural Manufactured Gas
12. HHOJSNYVHL Addns 3HNS S3Hd iH Linki WSLS EH 245 19 P 020 17 240 5666 4 FAX 10 3 ELCS 2008 NED 05 19 2 811 0 5108 1 00 6 0 p a 2 g 370108 IM S62 TO8LNOS 549 40 SNIT94938 O1LYWOLNY ON 38 3H3HLl Hd7108 OM c bz 4 NO 0350 SI 2408 1 TOHINOO HW N3HA ILON H3 7110HIMO2 Svo 810814 1 H3WHOJSNVHL 5 51 L1N11 4l Q3AON3H 38 LSOW HO 5 3480 1n3 MOI TIVISNIC TON INOS uolvino28I9 ONY LIWIT MOT 10114 1014 SNISNGH 9009 7 H W 9NILY In 341238 NOILVNIGNOD LIWII HSIH 2608 1 HW Ave IWiSOWHSHL ION 51 1916508 aas 31 S IVNIWH3LI 3S3Hl LYLSOWHSHL Wood 20 EH 245
13. L W Cut off and or Pluggad Gouge Glass ud Low Water Cut off Temp Alt amp Feeder Combination Gauga Top F Drain Drain G T Plugged Limit Control Tri Cocks not supplied EH 245 FAX No 317 240 5665 012 INSTALL STEAM TRIM The steam trim for the boiler consists of the follow ing components CONS a Low Water Cut Off b Compound Pressure Vacuum Gauge High Pressure Limit Control Pressuretrol d Gauge Glass Set e Siphon f Pressure Relief Valve Assemble above components exactly as shown in Figure 16 The necessary loose parts tubes nip ples tees etc to make the connections are in cluded in the Steam Trim Package The pressure relief valve is to be installed in the boiler supply piping as close to the boiler as pos sible COMBINATION PRESSURE VAGUUM GAGUE HIGH PRESSURE LIMIT LOW WATER HET CUT OFF Figure 16 C SHP 03 2008 VED 05 17 PM ELCS INSTALL WATER TRIM The water trim for the boiler consiste of three com ponents a Water Temperature Limit Control Electric b Temperature Pressure Altitude Gauge Pressure Relief Valve 21 Install temperature pressure altitude gauge in tapping indicated in Figure 15 The Red Hand should be set to indicate the height from the gauge to the highest point in the system or to the fill pressure
14. OF BOILER Figure 18 Steam Header Proportions Use One of EACH Boiler c b G H 1 Size Six Four Six Four Six Four Six 4 4 774 4 4 1 4 2 6 4 2 4 5 4 4 4 4 4xi x4 6 2 6 4 12 4 4 4 4 4 4 1 4 6x2x6 4 2 4 8 4 4 4x4 4 1 4 6x2x6 4 2 4 3 4 4 4 4 4 1 4 2 6 4 2 4 E 4 4 4x4 4xT vA 2 6 4 2 10 4 n 4 4 4x4 4xlkx4 6x2x6 4 2 m 4 FM 4 4x4 4 18 4 6x2x6 4 2 12 4 4 4 4 4 4 4 6x2x6 4 2 13 4 4 4 4x4 4 1 4 6x2x6 4 2 14 4 g 4 4 4x4 4 1 4 6 2 6 4 2 15 4 4 24 4 4 4 16 4 6 2 6 4 2 17 ale 4 6 4 6 4x4 4x6 4 18 4 2 4 2 19 416138 4 56 4 6 4x4 4x6 4 1 4 6x2x6 4 2 21 41614 4 6 4 6 4 4 4x6 4 1 4 6x2x6 4 2 23 4 6 4 6 4 6 4x4 4 6 4xll x4 6x2x6 4 2 25 4 6 416 4 6 4x4 4x6 4x x4 6 2 6 4 2 27 6 16 b 4 6 4 6 4 4 4x6 1 4 6x2x6 4 2 29 6 4 6 4 6 4 4 4 6 4 1 4 6x2x6 14 2 4 D 81 6 6 5 4 6 4 6 4 4 4x6 4 1 4 6 2 6 4 2 4 2 33 6 6 4 6 4 6 4x4 4x6 4 1 4 6x2x6 4 2 4 35 6 6 4 6 4 6 4 4 456 4 16 4 6 2 6 4 2 4 D 37 6 6 4 6 4 6 4 4 4x6 4 1 4 6x2x6 14 25 A CD 30 6 6 E 4 6 4 6 4x4 4 6 4 1 4 2 6 4 24 4 1 41 6 6
15. Water gauge glass set 58 5 Siphon WATER 6 Pressure relief valve 15 psig Figure 2 Steam Trim pressure relief valve not WATER TRIM 1 Water temperature high limit control electric 2 Combination temperature pressure altitude gauge 3 Pressure relief valve 30 psig WC TRIM Limit relay combination 2 Low limit circulator control 3 Temperat re pressure altitude gauge 4 Pressure relief valve 30 psig shown STEAM RISERS Figure 3 shows the location of the steam risers for boilers 29 to 41 sizes These risers are not required U for smaller sizes The locations must be held other wise the front jacket cover will not fit properly RISER SECTION FROM LEFT DM eM etm m Riser Section Size from Left End 29 16 18th 33 15th Figure 3 Location of Risers 35 171 37 19th 39 21st RISER RISER 1317 section 2819 section FROM LEFT FROM LEFT v EEFT T 245 SHP 03 2008 VED 05 13 PM ELCS CHART COMBINATION BASE CHART The 4 5 and 6 section boilers each have an individ ual base The 4 section has burners section 10 burners In order to build any boiler larger than 6 sections a combination of the above three bases must be used The assembly of any size boiler must follow Chart 1 in order for the gas manifold header piping to fit if gas controls are on right end Beiler Size Number Number of Burners No of Sections of Bases Pe
16. all on the base divisions Note in Figure 9 how parting line of intermediate sections align with base dimensions PULLING SECTIONS TOGETHER Before beginning clean nipples and nipple ports with an approved solvent Coat all nipples and nipple ports with the read lead supplied When placing nipples in nipple ports float the nip ples in the parts do not drive the nipples into the ports before beginning the pull up operation Note Be sure nipples are started straight Using the Pull up Tool pull the remaining sec tions into a completed boiler Insert tie rods in lugs Each tie rod is the width of base Nuts are to be finger tight INSTALLATION OF PLUGS AND WELLS Place the necessary plugs and wells in the correct position Refer to end section Figure 15 Plug all other holes and connect water Before filling with water ledve an air vent in tbe top of one end sec tion Fill the boiler with water until it runs out of the air vent Plug the air vent Check for any water leaks before continuing with assembly Note Hydrostatic test should comply with appli cable code DRAFT HOOD ASSEMBLY Refet to Figure 7 The draft diverter comes knocked down and packaged with the bases and also one end plate is with the end casing panel The divertere are the same size as the boiler bases Use 3 8 x 1 4 20 screws and nuts fumished for assembly Fasten the left end closing plate to the diverter 2 Fasten baffle to left
17. appreciably from tated input after the manifold pressure has been set it is recommended that the orifices be changed After changing the orifices again check input and manifold pressure LP gas installations have a regulator installed at the supply tank This regt lator should be adjusted t give a manifold pressure of 11 inches w c BRYANT DIAPHRAGM GAS CONTROL VALVE This valve operates on the principle of differential pressure on either side of a flexible weighted diaphragm which divides the main body of the valve into two compartments The lower compartment is under constant pressure from the gas supply line The upper compartment is connected by tubing to a Controller attached to the valve This Controller contains a small electrically actuated gas valve which permits gas to flow to or from the compart ment above the weighted flexible diaphragm in the flow control valve The Controller is connected electrically to the room thermostat or other boiler operating control When there is a call for heat the valve in the Controller permits the gas above the diaphragm to bleed off through the escapement The supply pressure on the bottom then pushes the diaphragm up and gas flows to the main burners When the operating control is satisfied the valve in the Controller cuts off the escapement and allows gas pressure to build up on top of the diaphragm When the pressure above and below the diaphragm is equal the diaphragm re EH
18. atment company for their recommenda tions IMPURITIES IN BOILER WATER When a boiler is first installed and used for a few days oil grease and sediment from pipe fittings may collect within the boiler These impurities may cause foaming and an unsteady water line They may prevent steam generation in a steam hoiler and may result in objectionable odors escaping from the vents on water boilers This condition can be reme died only by giving the boiler a thorough cleaning CAUTION Check the boiler water level Never risk lighting the pilots or main burners under a dry boiler CLEANING STEAM BOILERS Caution The boiler should not be left unattended during the clean out process T Skimming off Impurities Some of the impurities in the boiler water will float on the water and must be skimmed off Run a tem porary connection from the skimmer tee With the boiler empty and cool slowly begin to add water After water has entered boiler never before turn main gas burners and adjust flame at main manual shut off valve so that the water being added is kept just below boiling point Avoid boil ing and turbulence Gradually raise hot water level to tee being careful not to raise it above the opening in the tee Skim until there is no trace of impurities Repeat process if necessary Water may be checked to make sure it is free from oil by drawing off a sample at the skimming tee If the sample is reaso
19. discharge capacity in pounds per hour must be at least equal to the output of the boiler The canacity of the boiler in pounds of steam per hour can be determined by dividing the boiler output in BTU hr by 1000 For power or process pur poses use the following formula i t EE equals pounds steam per hour FLUE CONNECTION Consult local codes and gas company requirements The following is standard practice for installing the fiue pipe 1 Consult dimensional drawing for the number and size of flue pipes required for each size boiler Also consult table for size of chimney connection 2 Maintain a minimum upward slope of 1 4 inch per linear foot from the boiler to the chimney 3 Run flue pipe as directly as possible Keep turns to minimum 4 Do not connect into a chimney serving an open fireplace 5 Insulate the flue pipe where it passes near com bustible material 6 Rigidly support pipe with hangers and straps 7 Chimneys should extend at least two feet above any object within a radius of 15 feet This includes the roof 8 Ali flue pipes extend through the roof should be equipped with a hood EH 245 EP 03 2008 WED 05 17 PM RLCS RELIEF VALVE SET AT 15 PSIG A FAX No 317 240 5665 EorF WATER LINE n EorF 2 P 014 08 EQUALIZER MAY BE INSTALLED AT RIGHT OR LEFT END
20. downward to in clude 3 8 inch to 1 2 inch of the thermocouple tip The flame must not come in contact with any other part of the thermocouple The thermocouple transforms heat energy from the pilot flame into electrical energy The curtent thus genetated is sufficient to operate the 100 shut off valve The Bryant Diaphragm Gas Control Valve is powered externally from the transformer and oper ates independently of the shut off valve When there is a pilot flame the current generated from the thermocouple holds the 100 shut off valve in the open position and the gas control valve controls the flow of gas Should the pilot go out there will be no current generated by the thermocouple and the 100 shut off valve will close and no gas can flow to the pilots If one pilot should go out all other pilots will re the main gas valve will be broken and gas cannot flow through the diaphragm valve EH 245 16 FAX No 317 240 5665 015 BURNER ADJUSTMENT Primary Air Allow boiler to operate at least 15 minutes Adjust each burner flame by closing the air shutter until yellow tips appear on the flame Then open the shutter to allow more primary air until yellow tips appear on the flame Lock the shutter in this position Note shutter is held in place by flat Screw ELECTRIC WATER TEMPERATURE High Limit Control This control is furnished with water boilers all gases It will shut off the gas supply to the burne
21. es 05 normal setting 1 Open the manual pilot valve and allow time for 4 Close the manual shut off valve and the manual air to be purged from the line pilot valve 2 Light all pilots immediately with a match or taper THERMOPILE PILOT GAS VALVE MH 8187 THERMOSTAT Figure 19 TEMPERATURE WATER LIMIT SUITABLE FOR MILLIVOLT CIRCUIT D 6 CONTROLS WATER BOILERS THERMOPILE PILOT MH VS 8187 THERMOSTAT HI PRESSURE SUITABLE FOR STEAM LIMIT MILLIVOLT CIRCUIT Figure 20 0 6 CONTROLS STEAM BOILERS 4 5 6 SIZES ONLY EH 245 18 O P 013 FAX No 317 240 5665 ELCS 2008 NED 05 19 4 811 0 910814 8937108 H3lVM STOMLNOS 6 08 2 0 0 3ATVA Svo lViSONWH3Hl H3NHOJSNUHI JOHINGS IH NIMES 3H ivH3dA31 H31VM HaMod gg anig 68311089 15 STOMINOO 6 0 8 2 0 Svo LNVAHS JOSlNO2 LIAN 3HflsS3Hd IH H3NHOJSNYVH L ATdd NS Zz enti SH31I08 H3 lVvM 56108 1 09 t q day SE O 3A1VA 1 LvVISONWH3HL WOO 3719NIS dl 5107119 33di inu HAWHOJSNVHL Aldd Ns LIWIT IH H3lwvM Lz 51081 09 t 5437108 15 Avugo JAY 4670 LN YANG H3
22. for description operation and adjust ment of controls CONTROLS AND ADJUSTMENTS Before attempting any control adjustments make sure that all of the connections have been made and that the boiler is properly filled with water On water boilers in addition to filling vent all air from the water system including radiation Make sure all valves on the supply and return lines are open GAS PRESSURE REGULATOR This regulator is of the adjustable spring loaded type It ensures a constant gas pressure to the burners during main line gas pressure fluctuations It is adjusted at the factory to deliver an outlet pressure of approximately 3 inches w c assuming a range of inlet pressures up to 15 inches w c The pressure regulator should be adjusted by the in 15 FAX No 317 240 5665 015 staller as described below ADJUSTMENT While the boiler is in operation check gas input at the meter The burners are equipped with fixed ori fices sized to produce the rated input shown on the erting plate If measured and rated input are not approximately the same the gas pressure regulator may be adjusted as follows 1 To increase input Turn gas pressure regulator adjusting screw clockwise 2 To decrease input Turn the adjusting screw counter clockwise The manifold pressure for natural gas should be 3 inches w c for mixed gas 3 inches w c for manufactured 3 inches w c Note If measured input varies
23. ht end section Plugs are provided for both sections for the tappings not used E 33 js A 9 6 vd Installation Instructions FAX No 317 240 5665 001 245 3924501 CODES GOVERNING INSTALLATIONS All installations are subject to local utilities or other authorities having jurisdiction This jurisdic tion nomally covers electrical wiring gas piping flue specification and insulation of adjacent com bustible material where required clearances cannot be maintained As a practical guide the following American Gas Association pamphlet is highly re commended ASAZ21 30 1959 or later edition COMBUSTION AIR When the unit is installed ina small room or a build ing of relatively air tight construction provide air for combustion and ventilation This air must be supplied through two openings of equal area one located above the draft diverter relief opening and the other near the floor The total free area of each opening should be equal to one square inch for each 1 000 Btu of input for indoor openings There should be a minimum of one square inch per 3 000 Btu input for outdoor air EH 245 Cancels New Effective 2 1 64 EP 03 2008 WED 05 12 PM RLCS FAX No 317 240 5665 P 002 H 1 T M SPACES N FLUE OUTLETS FLUE OUTLET 5 a ih 4 RISERS CONTROLS STEAM ONLY ENCLOSURE ay
24. nably free from oil it will not froth when boiled on a stove This test does not indicate the amount of sediment which may lay in the bottom of the boiler is therefore necessary that the boiler be further cleaned by blowing down 17 FAX No 317 240 5665 017 2 Blowing Down Boiler Before blowing down the boiler fill it to the water line Light burners and allow five pounds of steam pressure to build up Run temporary connection from one of the drain valves to a nearby sewer Connect to a drain valve on the opposite end of the boiler from the feed water inlet if possible Shut off the gas burners open drain valve and blow down entire contents of boiler Allow boiler to thoroughly cool and slowly refill to water line Repeat Step 2 as many times as required until blow off water is clear 3 Using Cleaning Compound If an exceptional amount of dirt or sludge seems to be present in the boiler a boiler cleaning compound made by a reputable manufacturer may be used ac cording to the instructions of the manufacturer of the compound When any type of cleaning compound is used care must be taken to thoroughly flush all traces of the compound out of the boiler Sal Soad washing soda is sometimes used for ex ceptionally dirty boilers but its use requires ex treme caution The boiler can be seriously harmed if the soda is not thoroughly washed out or at least sufficiently so that the water does not exceed the p
25. onnect the control train 3 Dope the short nipple and place in the inlet of the next manifold and tighten securely 4 Attach the appropriate fitting to the short nip ple and tighten to within 1 4 inch turn of final tightness Figure 114 5 See Figure lla Place the appropriate dresser coupling in the outlet of the fitting 6 Place unthreaded end of pipe in dresser coupling and tighten fitting last 1 4 inch turn See Figures lib and ilc 7 Dope and place threaded end of pipe into el bow and tighten Tighten dresser coupling around pipe See Figure 118 Repeat above procedure for larger boilers See Figure 11e To reverse the controls the base order must also be reversed The controls will always be on the largest base with the smallest base on the opposite end Figure lle is on the next page EH 245 EP 03 2008 WED 05 16 PM RLCS FAX No 317 240 5665 P 010 PANEL Figure 12 Install Back Casing Panels BACK CASING PANELS Place the back casing panels under the flange on the draft diverter baffle and the side flanges of the back casing panels into the rear casing supports Place screws through flange of draft diverter into back casing panel See Figure 12 END CASING PANELS To position the end casing panels place the rear flange of the end casing panel in the slot of the tear casing support See Figures 1
26. r Base Left to Right 4 1 6 5 1 8 6 1 10 7 2 6 6 8 2 6 8 9 2 8 8 10 2 8 10 11 2 10 10 TEN 66 10 13 3 8 8 8 14 3 6 10 10 15 3 8 10 10 17 4 8 8 8 8 19 4 6 10 10 10 21 4 10 10 10 10 23 5 6 8 10 10 10 25 5 8 10 10 10 10 27 6 6 6 10 10 10 10 29 6 6 10 10 10 10 10 31 6 10 10 10 10 10 10 33 7 6 8 10 10 10 10 10 35 7 8 10 10 10 10 10 10 37 8 6 6 10 10 10 10 10 10 39 8 6 10 10 10 10 10 10 10 41 8 10 10 10 10 10 1 0 10 10 Reverse base order if controls are on the left end ERECTION When selecting the installation site remember it must have a firm non combustible level founda tion Should the hoiler base not be level when assembly begins the sections will not align propet ly and assembly difficulties will be encountered If the 245 is to be used as Steam boiler and is to be connected to another steam boiler the factory design waterlines of the two boilers must be of equal distance above floor level ASSEMBLY OF BASES Jt will be necessary to use a combination of bases on all 245 Boilers water or steam larger than six 6 sections See Chart I for various combinations When using two or more bases be sure the top angles of the bases are even and level EN 5 GAP 16 SCREWS FAX No 317 240 5665 005 The bases are to be securely fastened together by the use of 5 16 inch cap screws and futs Install two screws in the front posts two in the rear posts as shown in Figure 4
27. rs when the water temperature in the boiler reaches the cut out setting When the water temperature drops to the cut in temperature the control allows gas flow to the burners Cut out temperature ig adjustable from 100 degrees F to 240 degrees F Adjustments Again consult the installing contractor for setting Adjust the limit control for desired cut out set ting GAS CONTROLS AND PIPE CONNECTIONS When checking gas controls and pipe connections for gas leakage never use an open flame Always use a soap and water solution FLUE CONNECTIONS Inspect the flue connection to the chimney each year to make sure it is in good condition and has not become obstructed DRAINING BOILERS Boilers should never be drained unless it is abso lutely necessary The water should remain in the boiler between heating seasons When it is neces sary to add make up water trapped ait should be removed through the system vents It has been found desirable under some conditions to keep the pilots lighted during the summer months to reduce surface corrosion Fiequent addition of water can shorten the life of the boiler If it is necessary to add water frequently check the entite system and repair all leaks If it is EP 03 2008 WED 05 18 PM RLCS still necessary to add make up water frequently be sure the air is removed The boiler water should be mildly alkaline with a pH of 7 to 8 Consult a local water tre
28. utoff valve and the various pilots For all sizes of 23 sections and up on natural and manufactured gases use 3 8 inch tube All sizes on propane use 1 4 iach tube 5 Install the bleed tip to burner venturi just in back of carry over and tighten clamp securely This bleed tip will go on the first base if one tip is sup plied If there are two tips furnished 27 and larger they should be installed on the first and second bases 6 Run a 1 4 inch tube from the vent in the gas pressure regulator does not apply to LP controls to the bleed tip assembly of the pilot that is closest to the regulator for all regulators larger than 1 inch Do not connect this vent to the escapement on the controller of the diaphragm gas control valve It must be vented to the pilot tip as indicated 7 The D6 controls consist of the Minneapolis Honeywell 5 8187 gas valve and the thermopile pilot These controls are available only on the 4 5 and 6 size Boilers EP 03 2008 WED 05 17 PM RLCS BOILER TRIM Figure 15 is a drawing of the end section showing the use of the various tappings Note the two un marked holes at left of supply tapping are holes for the pull rods On sections with 6 inch tapping the pull rod hole closest to the tapping is not present Figure 15 pening Size Steam Wnter A 4 Supply Supply Optional Supply 17 te 41 sizes B 4 Return Return c Ww Tri Cocks Plugged D Ww
29. vum 812 03 2008 12 0 05 12 PM RLCS The Bryant Model 245 Gas Fired Boilet is approved by The American Gas Association for use with nat ural mixed manufactured and propane gases It is a low pressure sectional cast iron boiler designed for use with water or steam Type S for steam can be used in systems with a maximum work ing pressure of 15 psig Type W for water can be used in systems with a maximum working pressure of 50 psig Installer The boiler is shipped knocked down Check rating plate for type of gas input voltage etc to be sure that all equipment furnished meets the requirements of the installation Read these instructions completely before beginning the installation On the end of manifold fitting box there is master copy of all packages required to assemble a hoiler of the particular controls size and gas type received On each box will be a pack age number Check each package to be sure all packages required have been received It is recom mended that the following step by step instructions be followed for best assembly results INSTALLATION The end sections are so designed that the controls may be placed on either the left or right end For purposes of orientation the manifold side of the boiler is considered the front This instruction is written for the assembling of a boiler whose gas controls will be on the right end The left end sec tion is a mirror image of the rig
30. with respect to the distribution syste as possible also as close to the chimney as possible 3 The floor of the installation site must be level Table Construct a level concrete pad if necessary Natural and Mfd Propane 4 Minimum clearance from combustibles is 6 inches 4 D4 05 D6 D2 on all sides includiag the top and draft diverter Bryant Automatic pilot x However a clearance of 24 inches on the front and Eryant gas control valve x x x the control end will be necessary for setvicing and pressure regulator x lx for cleaning It is recommended that 24 inches pas filter x clearance on all sides be the least amount of clear Een le pilot s x ance for 245 installation In some cases local relay s x x codes govern clearances Self generating pilot 5 Advise owner that air openings must be gas valve x clean and unobstructed Mfd gas only 3 EH 245 SHP 03 2008 VED 05 13 PM RLCS HIGH PRESS LIMIT CONTROL 7 PRESS VAG GAGUE FAX No 317 240 5665 004 BOILER TRIM The following controls are supplied as standard equipment Details of their function and operation will be found in the section on Controls and Adjust STEAM TRIM 1 Low water cut off mounted externally with blow off valve 2 High pressure limit control E 3 Compound pressure vacuum gauge 4
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