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Related Manuals for Miura EXW Series
Summary of Contents for Miura EXW Series
- Page 1 Revised August 19, 2014 Control Number: MA-MN-007-01...
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Page 2: Table Of Contents
TABLE OF CONTENTS SECTION 1 Introduction Definitions and Symbols Guarantee Introduction Features Specifications SECTION 2 Acts & Regulations Acts & Regulations National Regulatory Organizations SECTION 3 Installation Unloading Assembling Recommended Piping Water Piping Fuel Piping Clearances and Ventilation Stack & Breeching Installation (CGA Canada Only) Electrical Installation SECTION 4 Operation &... -
Page 3: Introduction
Damage to the boiler or parts of the boiler occurring after leaving the factory are not covered. Parts replaced under this warranty must be returned to MIURA. If the failed part is not returned, the customer will be charged for the new item. -
Page 4: Features
The 40-year, field proven ‘Miura Advantage’ is the ability to reach full output from cold start in less than 5 minutes using the least amount of energy and having the lowest environmental impact. The high efficiency... - Page 5 Section I, 1998 edition, the MAWP for 150# flanges is 205 PSIG for saturated steam service and 170 PSIG for Boiler Feed and Blow-off line service : Change from standard boiler to FGR boiler must be properly set up by a Miura ANGER...
- Page 6 EXW BOILER SECTION VIEW...
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Page 7: Specifications
PECIFICATIONS 1.5.1 S EXW-100 PECIFICATION FOR ITEM UNITS EXW-100 Boiler type Multiple water tubes Boiler Horsepower Rating Maximum working pressure PSIG (Kg/cm²) 160 (11.25) F (C) Max. working temperature 250 (121) 4,185,000 (1,054,000) Heat input Btu/Hr 4,083,000 (1,029,000) (Kcal/Hr) Heat output 3,348,000 (843,600) Efficiency 80% Gas fired (82% Oil fired) - Page 8 1.5.2 S EXW-200 PECIFICATION FOR ITEM UNITS EXW-200 Boiler type Multiple water tubes Boiler Horsepower Rating Maximum working pressure PSIG (Kg/cm²) 160 (11.25) F (C) Max. working temperature 250 (121) 8,369,000 (2,109,000) Heat input Btu/Hr 8,165,000 (2,057,000) (Kcal/Hr) Heat output 6,695,000 (1,687,000) Efficiency 80% Gas fired (82% Oil fired)
- Page 9 1.5.3 S EXW-250 PECIFICATION FOR ITEM UNITS EXW-250 Boiler type Multiple water tubes Boiler Horsepower Rating Maximum working pressure PSIG (Kg/cm²) 160 (11.25) F (C) Max. working temperature 250 (121) 10,461,000 (2,636,000) Heat input Btu/Hr 10,206,000 (2,572,000) (Kcal/Hr) Heat output 8,369,000 (2,109,000) Efficiency 80% Gas fired (82% Oil fired)
- Page 10 1.5.4 S EXW-300 PECIFICATION FOR ITEM UNITS EXW-300 Boiler type Multiple water tubes Boiler Horsepower Rating Maximum working pressure PSIG (Kg/cm²) 160 (11.25) F (C) Max. working temperature 250 (121) 12,563,000 (3,163,000) Heat input Btu/Hr 12,256,000 (3,086,000) (Kcal/Hr) Heat output 10,050,000 (2,531,000) Efficiency 80% Gas fired (82% Oil fired)
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Page 11: Acts & Regulations
For all new boilers with inputs over 10 million Btu/Hr, U.S. Federal emission standards apply including permitting and reporting procedures. ATIONAL EGULATORY RGANIZATIONS MIURA Boiler recommends contacting your actual insurance provider as well as the utility companies for assistance in identifying and complying with codes and regulations. - Page 12 A partial list of agencies having jurisdiction over boiler installation and operation is given below. This list is comprehensive but by no means all-inclusive. CSA I NDERWRITERS ABORATORIES NTERNATIONAL 333 Pfingsten Rd. 178 Rexdale Blvd. Northbrook, IL Etobicoke, Ontario 60062 M9W 1R3 (847) 272-8800 (416) 747-2300...
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Page 13: Installation
The EXW series boiler may be unloaded from the transport truck using a forklift. However, if a forklift is used, precautions should be taken to ensure that the boiler does not tip over. The boiler is top heavy and the weight is not centered. -
Page 14: Recommended Piping
3.2.1 B LOWER SSEMBLY Place the blower on the foundation so that the blower outlet is directly under the windbox inlet. Tighten the foundation bolts. Install air hose between blower outlet and windbox inlet straight (2)-Hose Clamps possible to reduce pressure drop in this duct. -
Page 15: Water Piping
Please Contact your nearest MIURA representative or Distributor about accessories. Before the boiler is fired for the first time after installation is completed, flush all piping. MIURA is not responsible for damage as a result of debris in piping such as stuck open check valve. ... -
Page 16: Fuel Piping
0.2 PSIG but NEVER below 3 PSIG during operation. This pressure must be at the regulator supplied with MIURA Boiler gas piping. If necessary, use larger pipe for long piping runs. Failure to maintain required gas flow rate pressure will... - Page 17 : Do not attempt to change any part of this gas train without first consulting the AUTION nearest authorized MIURA representative. EXW-100 EXW-200 EXW-250/300 2 ½” NPT Gas Inlet 2" NPT 1” NPT Main Gas Regulator Vent ” NPT Pilot Gas Regulator Vent ”...
- Page 18 Pilot Gas Regulator Do not allow vent pipe to be kinked. This will Gas vent line to result in pilot flame outside boiler room. failures Pilot Gas Train High Gas Pressure Main Gas Train Switch if required Solenoid Valve (For IRI) Low Gas Pressure Switch if required Main Gas Regulator, local code...
- Page 19 Oil Pump Fuel pressure at pump suction must NOT be at a vacuum. Do not use the MIURA supplied oil pump to draw oil up from the tank, through the overhead, and down to the boiler. This arrangement almost always allows air to leak into the pump suction connection and results in very poor combustion.
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Page 20: Clearances And Ventilation
Vent all air from the piping to prevent damage to the oil pump seal before running the pump. Follow all local regulations. LEARANCES AND ENTILATION 3.6.1 C LEARANCES The EXW model was designed for non-combustible floors with minimum clearances from the unit and flue connector to combustible materials of: Boiler Top 40"... -
Page 21: Stack & Breeching Installation (Cga Canada Only)
(i.e. for four boilers; all boilers at high-fire or only one boiler at low-fire). Failure to maintain this value will adversely affect boiler performance and is not the responsibility of MIURA. Proper installation of the chimney is a requirement for good boiler efficiency and safe operation. -
Page 22: Electrical Installation
On oil fire, SO is normally less than 20 PPM and depends on oil type. LECTRICAL NSTALLATION : MIURA recommends that an Alarm or Caution light be installed in the control room if possible. Voltages Input Rate Wire Gauge... -
Page 23: Operation & Maintenance
MIURA dealer. Daily water analysis should be performed to see if additional treatment is needed. Use a tester of 1 PPM or less sensitivity. : See MIURA XJ1 manual for detailed operation of the control panel. REPARATION BEFORE TART Check the following everyday before boiler start-up: a) Make sure all gauges are operating correctly. -
Page 24: Shut-Down
MIURA representative 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 air flow. e) Do not change the setting on the high temperature limit. -
Page 25: Safety Attachments
If you smell gas, immediately shutdown the boiler, turn off all power sources, and contact your gas company and then a MIURA representative or distributor. h) Be careful when you take a sample of water from the boiler. Please be sure to open the valve very slowly. - Page 26 4.5.4 H EMPERATURE IMIT WITCH If the water temperature should, for any reason, rise above the pre-set temperature (Max. 250F), the High Temperature Limit Switch will be activated, the boiler will be shut down and the alarm will sound. The display will show "ALARM"...
- Page 27 show ”ALARM” and “AIR PRESS FAULT”. Some motors have an internal stator winding thermal overload feature. If thermal overload – 49F has not tripped in the boiler control panel, operation will not resume until the blower motor has cooled down. 4.5.8 D AMPER ICRO...
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Page 28: Water Treatment
MIURA has no warranties to cover damage due to poor water treatment and failure to maintain these specifications listed below. MIURA MAKE-UP WATER MAINTENANCE CHECK In order to keep your EXW Series running in top condition, be sure to check the following daily: a) C HEMICAL i. - Page 29 The absence of Corrosion Inhibitors will result in corrosion of the boiler even if Glycol is in the system at the proper concentration (no greater than 50% Glycol). Miura Hot Water Boilers require INHIBITED GLYCOL to prevent both Freezing and Corrosion. Check with your...
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Page 30: Maintenance
SECTION 5 MAINTENANCE & C AINTENANCE LEANING CHEDULE In order to protect the high efficiency and to prevent costly breakdowns of your EXW Series, perform the following maintenance and cleaning. EVERY EVERY MAINTENANCE ITEM NEED CHECK POINTS REMARKS MONTHS Tune up Check combustion, sound &... -
Page 31: Troubleshooting
Remove the battery from holder and remove the connector. Insert the connector of a new battery immediately. Fit a compatible battery into the holder and replace the panel cover. For a recommended SPARE PARTS LIST of your boiler, please contact a Miura representative or distributor. ROUBLESHOOTING... - Page 32 Check blower rotation Reversed rotation Reverse wire c) Check spark rod Faulty Replace d) Check flame safeguard Test switch on Set back to off Loose wire or faulty Tighten wires OR replace * ALWAYS MIURA CONTACT YOUR NEAREST REPRESENTATIVE...
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Page 33: Flow Chart Of Exw Sequence Operation
EXW S HART OF EQUENCE PERATION... - Page 34 DISTRIBUTOR INFORMATION NAME ADDRESS TELEPHONE DATE OF INSTALLATION BOILER MODEL MIURA BOILER OFFICES WWW.MIURABOILER.COM Atlanta Boston 1900 The Exchange 47 Mellen Street Suite 330 Unit 2-C Atlanta, GA 30339 Framingham, MA 01702 (770) 916-1695 (201) 592-1260 (770) 916-1858 Fax (201) 592-1262 Fax atlanta@miuraz.com...
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