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User Manual
HFG2.0 Gas Fuel Metering Valve
SD-6009 Rev. 6
August 2008
PRECISION ENGINE CONTROLS CORPORATION
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This manual provides installation, maintenance, and operating instructions for the HFG2.0 Gas Fuel Metering Valve. Every attempt has been made to provide sufficient information in this manual for the proper operation and preventive maintenance of the valve. Read this manual in its entirety to fully understand the system. Operating the HFG2.0 Gas Fuel Metering Valve in accordance with instructions herein ensures long term and reliable operation. If you need additional information, plea
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TABLE OF CONTENTS Purpose of This Guide ................................................................................................................................... iii Product Identification...................................................................................................................................... iii What the User Should Know ......................................................................................................................... iv Rela
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Figure 1-11. Typical Power Connection With Battery.......................................................15 Figure 1-12: HFG2.0 System Signal Wiring Diagram......................................................19 Figure 1-13. Typical Analog Input Connection..................................................................20 Figure 1-14. Typical Analog Output Connection...............................................................20 Figure 1-15. Typical Discrete Input Command Connect
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Purpose of This Guide This publication is designed to help the user install, operate, maintain and troubleshoot the HFG2.0 Gas Fuel Metering Valve. Product Identification Most of the information in this manual is applicable to all generations of the product. Where unique information applies to a specific generation, one of the following symbols will be shown to indicate as such: Fourth generation (isolated RS-232) P/Ns: 5002605-XXX, 5002610-XXX, 5002447-XXX or: Any Remanufactured
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What the User Should Know To install, operate and troubleshoot the HFG2.0, it is necessary for the user to have a fundamental understanding of: • Electronics concepts, such as voltage, current, and switches • Mechanical motion control concepts, such as inertia, torque, velocity, distance, force Related Publications • ActWiz Software Operations Manual (p/n SD-6010) iv HFG2.0 USER GUIDE
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1 INSTALLING THE HFG2.0 1.1 Before Beginning Inspection The HFG2.0 should be inspected immediately after unpacking. Check for dings or dents or any other obvious signs of damage. Remove the protective caps from the connectors and check for any bent pins or damage to the threads of the connectors. Examine the wires of the signal and power harnesses for any signs of damage to the wire insulation. In the event that any damage is detected, contact PECC for instructions about how to pr
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Electrical Noise Guidelines PECC has taken the following measures to reduce electrical noise with the HFG2.0: • High-voltage wires are routed separately from low-level signals through the use of separate power and signal harnesses. An additional measure to reduce electrical noise is to: • Ensure that the HFG2.0 is properly grounded, as per Section 1.4 of this manual. Environmental Considerations The HFG2.0 operates satisfactorily with ambient air temperature of -40 °C (-40 °F) to
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1.2 General Specification Summary PARAMETER VALUE Power Input Voltage Range 80-160 VDC; 120 VDC nominal Maximum Current 20 A Typical Transient Current +20A < 60ms; +10A < 120ms; -5A < 100ms Typical Continuous Current < 1A Inputs and Outputs Discrete Inputs ON Voltage: 12 – 32 VDC, +24 VDC nominal @ 6.5 mA RUN and RESET commands OFF Voltage: 1.0 VDC, maximum Discrete Outputs OFF Voltage: 32 VDC maximum @ 150 µA typical Effective ON Resistance 1.
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Certifications North American Certifications CSA Class I, Div 1, Group B, C, D; T4 European Directive Compliance (CE Mark) EEx d, IIB+H ; T4 2 97/23/EC Pressure Equipment Directive (PED) 94/9/EC Potentially Explosive Atmospheres (ATEX) 02ATEX6051X 98/37/EC Machinery Directive 89/336/EEC Electromagnetic Compatibility Directive (EMC) Materials Actuator Housing 6061-T6 Anodized Aluminum Valve Housing 6061-T6 Anodized Aluminum 316 Stainless Steel (Optional) Conduit
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Figure 1-1. Typical HFG2.0 Gas Fuel System Installation Figure 1-2. Alternate HFG2.0 Gas Fuel System Installation Dimensions Figure 1-3 and Figure 1-4 show external dimensions for the 3-piece housing and 1-piece housing versions of the HFG2.0, respectively. Mounting Considerations The HFG2.0 can be mounted directly to a gas turbine engine skid using brackets provided by the engine manufacturer. The HFG2.0 can be mounted with any directional orientation, whether horizontal
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The HFG2.0 includes four (4) 0.50-24 UNC-2B mounting holes with stainless steel heli-coil inserts for securing the valve body. The mounting holes on the standard version of the HFG2.0 are located on the opposite side from the electrical connectors. The mounting holes on the reversed version of the HFG2.0 are located on the same side as the electrical connectors (see Figure 1-5). Figure 1-6 shows mounting provisions for the 3-piece housing version of the HFG2.0. Figure 1-7 and Figure 1-
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WARNING Explosion Hazard – Do not remove the clevis. Removing the clevis violates the warranty. Care should also be taken when rotating the clevis or indexing the screw pattern to avoid scratching the flame path or introducing particulates to the assembly. Pipe Connections The standard pipe connection for the HFG2.0 is per SAE J518, -32 (2 inch), code 61. The valve bodies contain locking helical inserts. Contact Precision Engine Controls for other connection options. Note: To mai
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Vent Port 3 The gas leakage rate through the vent port is less than 200 cm /hr (air or 2 N as test flow). The vent port features a 1/8-NPT fitting. See Figure 1-4. Consult local installation codes to determine whether and how to connect this port. Figure 1-3. HFG2.0 Dimensions, 3-Piece Housing 8 HFG2.0 USER GUIDE
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Figure 1-4. HFG2.0 Dimensions, 1-Piece Housing INSTALLING THE HFG2.0 9
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Figure 1-5. HFG2.0 Mounting Orientations 10 HFG2.0 USER GUIDE
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Figure 1-6. HFG2.0 Mounting Provisions, 3-Piece Housing (Standard Mounting Orientation Shown) INSTALLING THE HFG2.0 11
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Figure 1-7. HFG2.0 Mounting Provisions, 1-Piece Housing (Standard Mounting Orientation Shown) 12 HFG2.0 USER GUIDE
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Figure 1-8. HFG2.0 Mounting Provisions, 1-Piece Housing (Reversed Mounting Orientation Shown) INSTALLING THE HFG2.0 13
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1.4 Electrical Connections The HFG2.0 is suitable for use in hazardous locations. See the General Specification Summary in Section 1.2 for certifications. Ensure compliance with the factory recommendations, and that wiring is in accordance with local requirements. WARNING: 94/9/EC (ATEX) Compliance – Special Conditions for Safe Use: Two special factory-sealed unions are mounted on the equipment to ensure the electrical connection to the network and to provide the feedback signal t
