Table of Contents
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Table of Contents
Troubleshooting
Summary of Contents for Hegwein FD Series
- Page 1 Inhaltsverzeichnis Operating Manual Pressure switch for gas, air and emissions FD… © Hegwein GmbH Before first use, read the operating manual! Am Boschwerk 7 70469 Stuttgart, Germany Tel.: +49 (0)711 13 57 88-0 Fax: +49 (0)711 13 57 88-5 E-Mail: info@hegwein.de www.hegwein.de...
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Page 2: Table Of Contents
Pressure switch FD… Contents General ............3 Functional characteristics and Information on the operating manual ... 3 structure ........... 18 Explanation of symbols ........ 3 Functional characteristics ......18 Liability disclaimer ........4 Structure ............ 18 Copyright protection ........5 Installation and initial commissioning... -
Page 3: General
Pressure switch FD… General General Information on the operating manual This operating manual provides important information on working with the pressure switch. Safe working can only be ensured by adhering to all the safety remarks and instructions provided. In addition, the locally applicable accident prevention laws and general safety regulations must be followed. -
Page 4: Liability Disclaimer
Pressure switch FD… General Recommendations REMARK! … highlights useful recommendations and information designed to permit efficient, trouble- free operation. Special safety remarks In order to draw attention to special hazards, the following symbol is used in conjunction with safety remarks: DANGER! Fatal danger due to electrical current! …... -
Page 5: Copyright Protection
Pressure switch FD… General Copyright protection These operating instructions may not be shared with third parties. They are exclusively intended for those operating the pressure switch and may not be made available to third parties without the prior written consent of the manufacturer. REMARK! The information, texts, drawings, illustrations and other representations are protected by copyright... -
Page 6: Safety
Pressure switch FD… Safety Safety This section provides an overview of all important safety aspects for optimum protection of personnel as well as safe, trouble free operation. Failure to observe the operating instructions and safety remarks contained in this manual can cause serious injury. This information described minimum requirements, local situations and regulations may call for a wider scope. -
Page 7: Operating Personnel
Pressure switch FD… Safety Operating personnel 2.2.1 Requirements WARNING! Danger of injury due to insufficient qualification Incorrect handling of the equipment can result in severe personal injury and material damage. – Only allow activities to be performed by suitably qualified specialist personnel. The following qualifications are required for the various fields of activity: ... -
Page 8: Unauthorized Persons
Pressure switch FD… Safety 2.2.2 Unauthorized persons WARNING! Danger for unauthorized persons! Persons who do not comply with the requirements described here are not aware of the dangers inherent in the work area. – Keep unauthorized persons away from the work area. -
Page 9: Personal Protective Gear
Pressure switch FD… Safety Personal protective gear Personal protective gear must be worn while working with the equipment in order to minimize potential health hazards. Wear the protective gear necessary for performance of the relevant task at all times while working. ... -
Page 10: Special Dangers
Pressure switch FD… Safety Special dangers Remaining dangers are listed in the section below. The remarks provided here and the safety instructions in the subsequent chapters of this operating manual must be observed in order to reduce the possible risk to health and prevent the occurrence of dangerous situations. -
Page 11: Response In Case Of Danger Or Accident
Pressure switch FD… Safety Securing against unauthorized use Switch safeguarded by lock on: …….. at ……hours Switch off the power supply. DO NOT SWITCH ON If possible, secure the switch with a lock and attach a sign in an easily visible location at the switch. The lock may only be removed by: …………………... -
Page 12: Transport, Packaging And Storage
Pressure switch FD… Transport, packaging and storage Transport, packaging and storage Safety instructions for transport REMARK! Extreme vibration or shock may cause damage to electrical components. Transport inspection Check the delivery on receipt without delay for completeness and transport damage. In the case of externally recognizable transport damage, report the damage immediately, adopting the following procedure: ... -
Page 13: Storage Conditions
Pressure switch FD… Transport, packaging and storage Handling packaging materials If no outline agreement has been reached for packaging, separate the materials according to type and size, and send for re-use or recycling. NOTE! Environmental damage due to incorrect disposal! Packaging materials are valuable raw materials and in many cases can be reused or usefully processed and recycled. -
Page 14: Specifications
Pressure switch FD… Specifications Specifications Type designation with type key Markings for special versions FD 2 K 1-7/ Characters 2, 6, 8 Type Basic type with red pilot lamp with green pilot lamp Characters / Setting range Setting range 2 - 10 mbar 1 - 7 5 - 70 mbar Special design... -
Page 15: Pressure Switch
Pressure switch FD… Specifications Pressure switch Characteristic Value Application For gas as overpressure switch For air as overpressure or underpressure switch Max. operating pressure FD…K0 50 mbar Max. operating pressure FD…K1-7 300 mbar Switching difference FD…K0 0,4 mbar Switching difference FD…K1-7 0,6 mbar Ambient temperature 0 °C to + 60 °C (condensation must be avoided) -
Page 16: Dimensional Drawing
Pressure switch FD… Specifications Dimensional drawing Fig. 2: Dimensional drawing, pressure switch Rating plate The rating plate is located on the junction room cover of the pressure switch and contains the following information: 1 Manufacturer 2 Date of manufacture (year/month) 3 Type 4 CE product identification number and approval number 5 Max. -
Page 17: Service Life
Pressure switch FD… Specifications Service life NOTE! This product does not have an unlimited service life! It was designed and type tested for a maximum service life. In applications involving 50 switching processes per day, this service life is set at around 10 years. -
Page 18: Functional Characteristics And Structure
Pressure switch FD… Functional characteristics and structure Functional characteristics and structure Functional characteristics The pressure switch compares an over or and underpressure against atmospheric pressure and transmits the result mechanically to a microswitch. The setpoint or switching pressure may be selected freely within the limits of the setting range. - Page 19 Pressure switch FD… Functional characteristics and structure nsc hlüss e The pressure switch consists of the enclosure (1), the junction room cover (2) and the mounting flange with its mounting loops. The membrane (10) is clamped between the mounting flange (3) and the enclosure (1).
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Page 20: Installation And Initial Commissioning
Pressure switch FD… Installation and initial commissioning Installation and initial commissioning Safety Personnel Installation may only be performed by suitably qualified specialist staff of the plant installer. Initial commissioning may only be performed by employees of the manufacturer or by trained personnel. Basics WARNING! Danger of injury due to faulty installation and... - Page 21 Pressure switch FD… Installation and initial commissioning REMARK! In case of underpressure please remove the plug from the underpressure port (2) and screw it into the overpressure port (3). Fig. 5: Terminal diagram pressure switch NOTE! Excessive temperature can cause damage! Excessive temperatures may cause malfunction of or damage to the membrane.
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Page 22: Electrical Connection
Pressure switch FD… Installation and initial commissioning Electrical connection This test must only be executed by a qualified electrician. NOTE! Risk of overload! Inappropriate use may damage the pressure switch. – The SPDT contact needs to be fused locally. For contact loads please see the table in the chapter “Technical Data”. -
Page 23: Special Design With Plug And Socket Connection Fd
Pressure switch FD… Installation and initial commissioning 6.3.2 Special design with plug and socket connection FD.../0B0000 REMARK! The plug is installed instead of the Pg cable gland. The wiring diagram sticker is fixed on the inside of the junction room cover. REMARK! Close the terminal box/connecting plugs and check whether all seals, cable strain relief devices etc. -
Page 24: Setting The Switch-On Point Acc. The Switching Pressure
Pressure switch FD… Installation and initial commissioning 6.3.3 Setting the switch-on point acc. the switching pressure To be executed by suitably trained personnel only. Release the four crosshead screws and take the junction room cover (1) off. REMARK! The setting point can be increased by loading the spring (3), that is by turning the setting screw (2) clockwise. -
Page 25: Control The Switch-On Point Acc. The Switching Pressure
Pressure switch FD… Installation and initial commissioning 6.3.4 Control the switch-on point acc. the switching pressure To be executed by suitably trained personnel only. Required special tools: Customarily available pressure gauge with a measurement range of 0 – 100 mbar REMARK! The test nipple is located next to the overpressure port. -
Page 26: Maintenance
Pressure switch FD… Maintenance Maintenance Safety Personnel To be executed by suitably trained personnel only. Basics WARNING! Danger of injury due to incorrectly executed maintenance work! Incorrectly done maintenance work can result in serious personal injury or material damage. –... -
Page 27: Maintenance, General
Pressure switch FD… Maintenance Maintenance, general The pressure switch should be function tested at regular intervals (minimum once a year). If the pressure switch is operated with air containing dust, checks must be performed at shorter intervals, as electrically conductive dirt deposits or moisture on the ceramic insulators of the igniter can result in malfunctions. -
Page 28: Troubleshooting
The following chapter provides information on possible causes for faults and describes the work required to remedy them. In case of faults which cannot be remedied following these instructions, contact HEGWEIN. For the servicing address, see the cover sheet of the table of contents. Safety ... -
Page 29: Troubleshooting Table
Pressure switch FD… Troubleshooting Troubleshooting table Fault Possible cause Solution To be done by Pressure switch does Set point or switching pressure Check switching pressure Qualified not switch over outside the setting range personnel Check burner management Qualified Switching contact welded up system and fusing at site personnel Pressure switch defective... -
Page 30: Dismantling / Disposal
Pressure switch FD… Dismantling / Disposal Dismantling / Disposal Once it has reached the end of its service life, the pressure switch has to be dismantled and sent for ecologically responsible disposal. Safety Personnel This may only be performed by trained personnel. Basics WARNING! Danger of injury due to incorrect dismantling! -
Page 31: Disposal
Pressure switch FD… Dismantling / Disposal DANGER! Risk of explosion due to leaking gas! Accidental gas leaks can cause an explosion or serious burns! When dismantling, shut off the gas valve! – Ensure that no residual gas remains, if necessary inert the gas lines. –... -
Page 32: Annex
Pressure switch FD… Annex Annex 10.1 EC type examination certificate 12-016-1_de-Rev0 - 32 - Status: 04-2016... - Page 33 Pressure switch FD… Annex 12-016-2_de-Rev0 Fig. 11: EC type examination certificate Status: 04-2016 - 33 -...
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Page 34: Eu Declaration Of Conformity
Pressure switch FD… Annex 10.2 EU Declaration of conformity 12-017_de_en-Rev2 Fig. 12: EU Declaration of conformity - 34 - Status: 04-2016...
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