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ENGINEERING

&

INSTALLATION

MANUAL

ENGINEERING

&

&

INSTALLATION

MANUAL

MIURA 

EX BOILER

170/250 PSI Designs

 

APPROVED

®

®

®

C

EX - HIGH EFFICIENCY SERIES

M

IUR

A

 BOILER WEST, INC.

* IN OUR CONTINUING EFFORT TO IMPROVE OUR PRODUCT,

INFORMATION IN THIS MANUAL MAY BE CHANGED WITHOUT NOTICE

OWNER SHALL MAINTAIN THIS MANUAL IN LEGIBLE CONDITION FOR FUTURE REFERENCE

PUBLICATION REVISED MARCH 2000

ENGINEERING REVISED FEBRUARY 2000

Summary of Contents for EX-100 SG0F

Page 1: ...PROVED C EX HIGH EFFICIENCY SERIES MIURA BOILER WEST INC IN OUR CONTINUING EFFORT TO IMPROVE OUR PRODUCT INFORMATION IN THIS MANUAL MAY BE CHANGED WITHOUT NOTICE OWNER SHALL MAINTAIN THIS MANUAL IN LE...

Page 2: ...SENSOR FEEDWATER INLET INSPECTION PORT CASTABLE INNER FEEDWATER PIPE FLUE GAS OUTLET MANUAL BOTTOM BLOWOFF LOW WATER CUT OFF STARTS FEEDWATER PUMP STOPS FEEDWATER PUMP LIQUID VOLUME CONTROLLER PRIMAR...

Page 3: ...OSITIONING AND ANCHORING 19 3 3 1 BOILER PROPER 19 3 3 2 ECONOMIZER INSTALLATION 19 3 4 STEAM PIPING 20 3 5 FEED WATER SYSTEM PIPING 21 3 6 FEED WATER PUMP 23 3 6 1 FEED WATER CONTROL VALVES 26 3 6 2...

Page 4: ...OWN 45 4 2 3 2 AUTOMATIC BOTTOM BLOW DOWN OPTION 46 4 2 4 SHUTDOWN 47 4 2 5 CAUTIONS DURING OPERATION 47 4 2 6 EXTENDED SHUTDOWN 48 4 2 7 CARRY OVER 48 4 2 8 MAKE UP WATER 48 4 2 9 MAKE UP WATER MAINT...

Page 5: ...iping Arrangement 21 Figure 14 Economizer Safety Relief Valve Installation 27 Figure 15 Boiler Safety Valve Installation 27 Figure 16 Blow Down Piping Arrangement 28 Figure 17 Double Blow Down Isolati...

Page 6: ...20 Table 10 Feed Water Pump Suction Strainer Size 21 Table 11 Feed Water Pump Recommendations 25 Table 12 Blow Down Piping Sizes 27 Table 13 EX Gas Piping Sizes 30 Table 14 Oil Inlet Pipe Sizing 32 T...

Page 7: ...nt that should be considered when designing a system Regulatory requirements are dictated by a variety of sources and are all focused primarily on safety The equipment shall be installed in accordance...

Page 8: ...Requirements American Gas Association Standards Underwriters Laboratories Inc Factory Mutual Insurers Industrial Risk Insurers Occupational Safety and Health Administration Food and Drug Administrati...

Page 9: ...condly probes are inserted into a water column on the side of the boiler This water control system relies on a conventional electrical conductance system When water contacts a probe a circuit is forme...

Page 10: ...X steam generators are annotated as a forced flow steam generator with no fixed steam or water level on the pressure vessel s P 3 form and registered with the National Board The complete packaged stea...

Page 11: ...available as options Two independent water volume controls and low water cut off safety devices plus manual reset Liquid volume control column and bottom blow down valves Steam pressure sensor and con...

Page 12: ...ted factory warranty on pressure vessel against material or workmanship defects 1 5 DEFINITIONS AND SYMBOLS Note Caution and Danger are used throughout this manual with the following definitions and s...

Page 13: ...This manual is available on disk for Microsoft Word 2000 and Word 95 97 In addtion detailed drawings are available on disk in Auto CAD 14 files If computer copies are desired please contact the Chicag...

Page 14: ...695 000 BTU HR 323 FT 170 GAL 75 GAL 9 700 LBS 9 000 LBS 24 KVA 14 for Oil 20 HP 8 340 SCFH 58 3 GAL HR 111 700 SCFH Gas 109 100 SCFH Oil 95 500 SCFH Gas 99 200 SCFH Oil 25 4 FT Sec Gas 24 8 FT Sec Oi...

Page 15: ...FH 27 5 GAL HR 52 500 SCFH Gas 51 500 SCFH Oil 44 900 SCFH Gas 46 800 SCFH Oil 19 1 FT Sec Gas 18 8 FT Sec Oil 270 F 2 One 1 One 2 1 2 3 4 One 3 8 Two 1 14 Proprietary Forced Draft Electric Spark Igni...

Page 16: ...rotection EX 100 SG 0 F 100 HP 3 450 LB HR 3 939 000 BTU HR Gas 3 848 000 BTU HR Oil 3 348 000 BTU HR 193 FT 110 GAL 64 GAL 7 300 LBS 6 800 LBS 23 KVA 24 for Oil 20 HP 3 920 SCFH 27 5 GAL HR 52 500 SC...

Page 17: ...e Outlet Main Water Inlet Fuel Gas Inlet Fuel Oil Inlet Automatic Surface Blow Down Manual Blow Down Stack Diameter ID Flame Detector Pressure Control Liquid Volume Control Overheat Protection EXH 100...

Page 18: ...n Water Inlet Fuel Gas Inlet Fuel Oil Inlet Automatic Surface Blow Down Manual Blow Down Stack Diameter ID Flame Detector Pressure Control Liquid Volume Control Overheat Protection EXH 200 G O 200 HP...

Page 19: ...et Fuel Gas Inlet Fuel Oil Inlet Automatic Surface Blow Down Manual Blow Down Stack Diameter ID Flame Detector Pressure Control Liquid Volume Control Overheat Protection EXH 300G O 300 HP 10 350 LB HR...

Page 20: ...d Blower Assembly Automatic Blow Down sensor electrode may be shipped inside electrical cabinet door for safety on some models CAUTION All boiler prices are F O B the factory at Brantford Ontario This...

Page 21: ...ints EX 100 EX 200 250 300 ECONOMIZER 2 1 3 8 2 1 3 8 2 1 EX 100 300 All Feed Water Pump foundations if used should have four 4 5 8 holes for 1 2 anchor bolts See Figure 3 These pump foundations are n...

Page 22: ...ric actuators acceptable Note that the pneumatic actuators operate in 1 second open to shut and the electric actuators are 5 seconds open to shut Refer to sections 3 5 and 3 6 1 for detailed discussio...

Page 23: ...igure 5 Blower Foundation Dimensions C D E B A EX 100 19 11 7 8 17 19 11 1 2 EX 200 19 11 7 8 17 19 11 1 2 EX 250 300 20 13 19 1 4 21 1 2 12 DIMENSION A B C D E MODEL 2 Hose Clamps 4 1 2 dia Holes for...

Page 24: ...e 7 for typical separator arrangement Connect Automatic Surface Blow Down wiring as shown in typical arrangement illustrations Figure 8 and Figure 9 18 Rear Junction Box WIRING TO REAR J BOX 28 18 20...

Page 25: ...t include an economizer 2 Flue gas flanges must be sealed Adjust the economizer as necessary to match the boiler flange by using the four adjusting bolts mounted on economizer base plate 3 Adjustment...

Page 26: ...Recommended slope is 1 for every 200 to300 horizontal pipe run For piping runs of more than 50 feet consideration should be given to expansion joints in the steam piping to minimize piping stress on t...

Page 27: ...Pump Suction Strainer Size ITEM EX 100 EX 200 EX 250 EX 300 Figure 12 Steam Line and Trap Arrangement Steam Header Condensate Return Steam Trap Feed Water Tank Steam Outlets T 3 5 FEED WATER SYSTEM P...

Page 28: ...Pump under or near the Feed Water Tank The suction pipe should be adequately sized and configured to minimize friction losses MIURA requires at least six feet of water above the suction of the pump to...

Page 29: ...arge of the pump Follow all local regulations 3 6 FEEDWATER PUMP NOT INCLUDED WITH BOILER UNLESS ORDERED FROM MIURA CAUTION The Feed Water Pump is vital to satisfactory operation of your new MIURA boi...

Page 30: ...n of relatively cold water to the hot boiler The MIURA Design Advantage eliminates the need for this type of system MIURA simply turns the pump on and off as needed based on actual boiler steam demand...

Page 31: ...lly fed to the boiler from the feed tank by traveling through a manual shut off valve Y type strainer pump economizer if equipped then through two 2 check valves to the bottom header to the internal w...

Page 32: ...ump cycle the boiler ON OFF switch located on the front of the boiler This will start the pump and allow verification of the direction of rotation Direction of rotation is counterclockwise when viewed...

Page 33: ...lve body after the valve lifts any rain water or valve leakage should be drained off and not allowed to stagnate Failure to drain the water may result in valve corrosion or water hammer if the valve l...

Page 34: ...The second blow down valve is an additional option See Figure 17 Install an additional check valve between the automatic blow down solenoid valve and the blow down separator See Figure 18 Check valve...

Page 35: ...o Blow Down Separator From other Boiler MIURA Standard Quick Operating Valve Figure 16 Blow Down Piping Arrangement If an Automatic Temperature Control Valve is used instead of a Manual Valve install...

Page 36: ...nges Specifically a change from burner Off to Low Fire which is approximately 40 of rated fuel usage occurs over a 10 15 second period The fuel usage then goes from 40 to 100 rated consumption when th...

Page 37: ...your local insurance provider and the gas company for specific requirements Some jurisdictions may require the pilot gas regulator to be vented See Figure 19 for a typical vent line arrangement and F...

Page 38: ...llow line to be krimped Frequent pilot flame failures will result Figure 21 Pilot Gas Regulator Vent Line Connection Figure 20 Main Gas Pressure Regulator Vent Piping Use drip leg or rain cap on vent...

Page 39: ...to leak into the pump suction connection and results in very poor combustion 5 Install a manual fuel oil shut off valve at the boiler 6 Avoid high points in the pump suction piping that would allow a...

Page 40: ...er is located some distance from the boiler an emergency stop start or disconnect switch may be required near the motors 5 For details of wiring see individual wiring diagrams 6 Comply with local buil...

Page 41: ...local disconnect emergency stop switch at the pump In this situation it is not necessary to provide an interlock between the pump and boiler to ensure that the local disconnect is shut The boiler sta...

Page 42: ...ssure above or below set value feed water pump energized or off This information is provided by the addition of 120VAC control circuits inside the control cabinet The additional circuits are available...

Page 43: ...eet above the lower side of the roof slope c Figure 27 provides examples 4 Include a rain hood for all stacks Also be sure to add a rain shield for straight stacks through the roof 5 Do not make the s...

Page 44: ...e draft will result in lower boiler efficiency and also affect pilot burner and main burner flame stability Excessive available draft is a negative pressure at the boiler connection to the stack NOTE...

Page 45: ...Economizer EX G GO with Adaptor Option Drain EX SG SGO with Economizer Flue Gas Sample Plug G ID H 0 1046 ID I 0 1046 ID A F ID A inches B x C inches D holes E PD inches F flange OD inches G H I ID J...

Page 46: ...l come on The Feed Water Pump will continue running until the required water volume is reached At this point the Feed Water Pump will stop If The red LED of any of the floatless switches does not come...

Page 47: ...re against the alarm set point The XJ1 also adjusts the alarm set point internally based on boiler steam pressure Therefore it is not necessary to set the alarm point at boiler start up DO NOT CHANGE...

Page 48: ...orget to put the flame eye back to its original position and reset the Flame Safeguard 4 1 7 POWER OVERLOAD Overload or short circuiting of the blower motor will result in boiler shutdown and sounding...

Page 49: ...bustion will stop the alarm will sound and the lamp will be illuminated In addition the display will show LOW OIL PRESS For testing open the circuit breaker of oil pump during combustion The boiler wi...

Page 50: ...tically 7 When desired steam pressure is reached open the steam outlet valve Note If the water volume is low or if there is anything wrong with the gas pressure switch and or overheat protection syste...

Page 51: ...t start if connected to the Multiple Installation Controller If this is the case place the boiler in MANUAL or LOCAL operation by pushing the AUTO button on the MT1 located inside the boiler control p...

Page 52: ...ive or distributor d Proper balance of gas and airflow is needed to assure complete combustion and optimum efficiency Contact your nearest MIURA representative or distributor to adjust the air flow MI...

Page 53: ...lly draws 25 boiler capacity and then steps up to 100 boiler capacity very quickly This results in flashing of the water in the boiler as steam pressure drops and a momentary steam production rate tha...

Page 54: ...BELOW 1 0 7 9 0 0 DETECTABLE BELOW 30 BELOW 30 TOTAL BELOW 0 5 3 3 3 2 MAKE UP WATER STANDARD RANGE 4 2 10 Water Specifications The chemistry values given in Table 15 are specific guidelines establish...

Page 55: ...ND DAMPER LIMIT SWITCH OIL PUMP MOTOR X X X Visual X X DAILY 3 4 MONTHS CHECK POINTS ITEM AS NEEDED ANNUAL X X MONTHLY X X X IS WATER SOFT SCALE PREVENTION REFER TO BLOW CARRY OVER DOWN SECTION SLUDGE...

Page 56: ...eplace load tripped 1 Is main feed water valve Open all feed water valves and feed water stop cock completely open 2 Is water level correct in feed Tank feed piping blocked Clean the piping water tank...

Page 57: ...4 Spark rod Carbon on spark rods or Clean or replace porcelain on rod is broken Loose wire connection Tighten connection Faulty cord Replace cord 5 Is pilot gas valve open Do Loose wiring or faulty g...

Page 58: ...Insufficient fuel flow for high Check electrical wiring valve or two stage fuel valve fire or re set limits 4 Air duct connection Air leakage Tighten or replace connection 5 Hi or low steam pressure F...

Page 59: ...ization will result in voiding of all warranties Changing this tempera ture setting may be required if the customer chooses to raise or lower the boiler operating pressure g When any boiler problem oc...

Page 60: ...102100 Sprecher CA7 12 10 120 CT102000 Sprecher CA7 12 10 120 CT102000 I 18 SR100300 Warrick 3H1C EL3H1C11108 23 1 2 985167 985201 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 2...

Page 61: ...valves may be purchased from any industrial parts house The list below is not all inclusive and in general is more than required If the customer does not have a stand by boiler is some distance away f...

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