Honeywell HON 985B Operating And Maintenance Instructions Manual

Gas mixer

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Gas Mixer HON 985B
OPERATING AND MAINTENANCE INSTRUCTIONS/
SPARE PARTS
Serving the Gas Industry
Worldwide
985.29-1
EDITION 01/2017
Table of Contents
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Summary of Contents for Honeywell HON 985B

  • Page 1 Gas Mixer HON 985B 985.29-1 OPERATING AND MAINTENANCE INSTRUCTIONS/ SPARE PARTS EDITION 01/2017 Serving the Gas Industry Worldwide...
  • Page 2: Table Of Contents

    Table of contents Page General information General information Safety information Applications and features Structure and mode of operation Specific operating instructions High frequency radiation exposure Stepper motor control card Technical data Technical features of the mixer Dimensions and technical features of the stepper motor Technical features of the proximity sensor (limit switch) Dimensional drawing Specific maintenance instructions...
  • Page 3: General Information

    Venturi insert. Any and all defective parts must be replaced with new ones. The same applies to O rings removed during disassembly. Do not use any spare / wear parts and/or oils & lubricants not specifically recommended in the Honeywell operating and maintenance instructions. In the event spare / wear parts and/or lubricants & oils other than those specifically recommended are used, Honeywell shall not be held liable for any defects and...
  • Page 4: Applications And Features

    Mixture of air / fuel gas not rich enough too rich increase mixing gap reduce mixing gap HON 985B - 140/65-ZW-N-NI Gas 2 (Fuel gas) Constriction device (torpedo) Gas 1...
  • Page 5: Specific Operating Instructions

    Specific operating instructions High frequency radiation exposure (comment on application at gas engine) Possible high frequency radiation exposure (e.g. from the coil and its cable) must be observed Note with regard to the proper response from the proximity sensors and stepper motor. Cables must be laid separately.
  • Page 6: Technical Features Of The Proximity Sensor (Limit Switch)

    Colours of the wires a - blue/white b - blue c - red d - red/white e - green f - green/white g - black/white h - black Fig 3: Connection diagram of the stepper motor Technical features of the proximity sensor (limit switch) for Venturi position Counter nut Inductive sensor Adjusting nut...
  • Page 7: Dimensional Drawing

    Dimensional drawing HON 985B-140/65-ZW-N-NI Fuel gas connection level ø I Fastening level Mixture connection Air connection (hose) 350.5 ø133.6 483.5 ø152 Proximity sensor “lean” Stepper motor connection Locking screw (second “rich” proximity sensor optional) 46.5 4 x M 8 - 12 deep...
  • Page 8: Specific Maintenance Instructions

    Specific maintenance instructions Danger Do not carry out maintenance unless the system is safely de-energised and depressurised. Intervals for maintenance purposes The intervals between maintenance tasks depend largely on the operating conditions of the device. Please observe chapter 1.1. General Information. If operational irregularities are discovered during the operation or during a functional test, Note unplanned maintenance work on the mixer is required.
  • Page 9: Maintenance

    Maintenance With the description of the individual maintenance steps, the same position numbers are used here for the identification of the component as can be found in the spare parts drawing (page 12) and the spare parts list (page 13). In order to enable simple, easy maintenance work, we recommend following the sequence of the individual steps.
  • Page 10: Dismantling The Venturi Insert

    Dismantling the Venturi insert Loosen the cylinder screw on the profile clip (217) and remove it. Disconnect the body (201) together with the Venturi insert and pin (204) from the induction elbow. The parts should be carefully separated from one another in order to prevent damage Caution to the pin by bending, etc.
  • Page 11: Mounting The Drive Unit

    Mounting the drive unit Before fitting the stepper motor and adjustable coupling, spray the threaded spindle on the stepper motor with slip agent (Table 5). Then rotate the coupling onto the spindle and adjust the distance to the motor flange (see Figure 10). Caution Observe the adjustment measurement! Stepper motor...
  • Page 12: Spare Parts Drawing

    Spare parts Spare parts drawing HON 985B -140/ 65-ZW-N-NI 985.29-1 p.12...
  • Page 13: Spare Parts List

    Spare parts list HON 985B - 140/65-ZW-N-NI Item Denomination Number W Material Part no. i r u o i t n i l n i l y t i ) 2 ( n i l n i l fi o...
  • Page 14: Parts For Maintenance Purposes

    Parts for maintenance purposes Item n i l n i r t l e t l e Complete guide, comprised of Pos. 226 to 228 10030011 n i r – c i l – – p i l – – 985.29-1 p.14...
  • Page 15 For More Information To learn more about Honeywell’s Advanced Gas Solutions, visit www.honeywellprocess.com or contact your Honeywell account manager GERMANY Honeywell Process Solutions Honeywell Gas Technologies GmbH Osterholzstrasse 45 34123 Kassel, Germany Tel: +49 (0)561 5007-0 HON 985.29_1 2017-01 Fax: +49 (0)561 5007-107...

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