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Design Guide
No. 110, 4/98
L00002
Eclipse RatioMatic Burners
RM Series
Version 3.00

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Summary of Contents for Eclipse Combustion RatioMatic RM Series

  • Page 1 Design Guide No. 110, 4/98 L00002 Eclipse RatioMatic Burners RM Series Version 3.00...
  • Page 2 Please send your corrections and comments to our Documentation Manager. It must be understood that Eclipse Combustion’s liability for its IABILITY AND products, whether due to breach of warranty, negligence, strict ARRANTY...
  • Page 3: About This Manual

    EFE 825 (Combustion Engineering Guide) ELATED OCUMENTS • Eclipse Bulletins and Info Guides: 710, 732, 742, 760, 818, 832, 852, 854, 856, 610, 620, 630, 826, 820, 930, I-354. Purpose The purpose of this manual is to ensure that the design of a safe, effective, and trouble-free combustion system is carried out.
  • Page 4: Document Conventions

    Note: Indicates an important part of the text. Read thoroughly. If you need help, contact your local Eclipse Combustion OW TO representative. You can also contact Eclipse Combustion at any of the addresses listed on the back of this document.
  • Page 5: Table Of Contents

    Conversion Factors ....... A-1 Key to System Schematics ......A-2 Eclipse RatioMatic v3.00 - Design Guide No. 110, 4/98...
  • Page 6: Introduction

    • direct spark ignition • multiple fuel capability A wide variety of options and configurations are available due to the modular design of the burner. The RatioMatic Burner Eclipse RatioMatic v3.00 - Design Guide No. 110, 4/98...
  • Page 7: Safety

    Read the entire manual before attempting to start this system. If you do not understand any part of the information contained in this manual, contact your local Eclipse representative or Eclipse Combustion before continuing. Eclipse RatioMatic v3.00 - Design Guide No. 110, 4/98...
  • Page 8: Capabilities

    Order replacement parts from Eclipse Combustion only. All EPLACEMENT ARTS Eclipse Combustion approved, customer supplied valves or switches should carry UL, FM, CSA, CGA, and/or CE approval, where applicable. Eclipse RatioMatic v3.00 - Design Guide No. 110, 04/98...
  • Page 9: System Design

    • Ignition Gas Piping 5. Flame Monitoring Control System including: • Flame Sensor • Flame Monitoring Control 6. Main Gas Shut-Off Valve Train including: • Component Selection • Valve Train Size Eclipse RatioMatic v3.00 - Design Guide No. 110, 4/98...
  • Page 10 Use the RatioMatic Price List 110 and Data Sheets, Series 110 when following this selection process. Caution: Consult EFE-825, Eclipse Combustion Engineering Guide, or contact Eclipse Combustion if you have special conditions or questions. Burner Model / Size Selection Consider the following when selecting the burner size: •...
  • Page 11 The nozzle position determines the location of heat release. Control Motor Combustor Select a control motor. Standard control motor options include various models which Eclipse will mount to the burner. RatioMatics can be ordered with control motor bracket and mounting hardware only. Customer supplied control motors Combustor...
  • Page 12: Step 1: Burner Option Selection

    • sound requirements. • space limitations. • cleanliness requirements of the process. Motor Orientation All RatioMatics are assembled with a right-hand blower motor orientation. Eclipse RatioMatic v3.00 - Design Guide No. 110, 04/98...
  • Page 13: Step 3: Control Methodology

    The ratio regulator controls the gas flow in proportion to the air flow. Warning: Do not use other control methods, such as, a fixed-air control, and do not alter the ratio regulator or burner piping without prior approval from Eclipse Combustion. Eclipse RatioMatic v3.00 - Design Guide No. 110, 4/98...
  • Page 14: Step 4: Ignition System

    The following options must be considered under these conditions: • start at higher gas input levels. • resize and/or relocate the gas controls. • use bypass start gas. Eclipse RatioMatic v3.00 - Design Guide No. 110, 04/98...
  • Page 15 To start the burner at the lowest possible gas input, select a fuel orifice meter for 5” to 10” w.c. pressure drop when the gas flow is at the burner’s rated low fire. Eclipse RatioMatic v3.00 - Design Guide No. 110, 4/98...
  • Page 16: Step 5: Flame Monitoring Control System

    Honeywell RM7890 series flame monitoring • Flame monitoring relays which interrupt the trial for ignition when the flame is detected. • Flame sensors which supply a weak signal. • Flame monitoring relays with low sensitivity. Eclipse RatioMatic v3.00 - Design Guide No. 110, 04/98...
  • Page 17: Step 6: Main Gas Shut-Off Valve Train

    Main Gas Shut-Off Component Selection Valve Train Eclipse Combustion can help in the design of a main gas shut- off valve train that satisfies the customer and complies with all local safety standards and codes set by the authorities within that jurisdiction.
  • Page 18 Blank page 3-10 Eclipse RatioMatic v3.00 - Design Guide No. 110, 04/98...
  • Page 19: Appendix

    (m) 0.3048 inches (in) millimeter (mm) 25.4 inches water column (“wc) millibar (mbar) 2.49 pound (lb) kilogram (kg) 0.454 pounds/sq in (psi) millibar (mbar) 68.95 BTU/ft (standard) MJ/m (normal) 40.14 Eclipse RatioMatic v3.00 - Design Guide No. 110, 4/98...
  • Page 20: Key To System Schematics

    To do this, it measures the air pressure with a pressure sensing line, the impulse line. This impulse line is connected between the top of the ratio regulator and the burner body. Eclipse RatioMatic v3.00 - Design Guide No. 110, 4/98...
  • Page 21 EY TO YSTEM CHEMATICS CONTINUED Symbol Appearance Name Remarks Bulletin/ Info Guide Pressure Taps Impulse Line Eclipse RatioMatic v3.00 - Design Guide No. 110, 4/98...
  • Page 22 Blank page Eclipse RatioMatic v3.00 - Design Guide No. 110, 04/98...
  • Page 23 The Netherlands Phone: 31-182-515988 Fax: 31-182-533269 E-mail: eclipse@xs4all.nl www.eclipsenet.com Asia-Pacific Region Korea, Taiwan, China, ASEAN Region Eclipse Combustion China Ltd. Unit 1026 Block B, Focal Industrial Centre 21 Man Lok Street, Hunghon, Kowloon Hong Kong China Phone: 852-22333-8350 Fax: 852-22356-0014 E-mail: jcate4455@aol.com...

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