Bennett CNG Series Installation Manual
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Bennett CNG Series Installation Manual

Remote dispensers
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CNG Series Remote Dispensers
Only Trained Personnel May Work on This Equipment
READ THIS MANUAL
This manual has important information for safe installation and operation of this equipment. Read and understand
this manual before applying power. Keep this manual and tell all service personnel to read this manual. If you do not
follow the instructions, you can cause bodily injury, death, or damage to the equipment.
Bennett CNG Series
Installation Manual
120950 Revision L 8/2/17
Bennett 1218 E. Pontaluna Road, Spring Lake, MI 49456
USA 800-235-7618 ~ Outside USA 231-798-1310
sales@bennettpump.com ~ www.bennettpump.com

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  • Page 1 Keep this manual and tell all service personnel to read this manual. If you do not follow the instructions, you can cause bodily injury, death, or damage to the equipment. Bennett 1218 E. Pontaluna Road, Spring Lake, MI 49456 USA 800-235-7618 ~ Outside USA 231-798-1310...
  • Page 2 The material included in this installation manual is accurate at the date of publication. The intent of this manual is to assist. If further assistance is required, please contact the Bennett Technical Service Department at 1-800-423-6638. Bennett Marketing Services can be contacted by mail, facsimile, telephone or e-mail at the locations specified below: Bennett Pump Company...
  • Page 3 Bennett 1218 E. Pontaluna Road, Spring Lake, MI 49456 USA 800-235-7618 ~ Outside USA 231-798-1310 sales@bennettpump.com ~ www.bennettpump.com...
  • Page 4 PCI SSC or the payment brand participates. Bennett 1218 E. Pontaluna Road, Spring Lake, MI 49456 USA 800-235-7618 ~ Outside USA 231-798-1310...

  • Page 5: Table Of Contents

    Bennett CNG Series Installation Manual Table of Contents Table of Contents Bennett Limited Warranty for Product Installed in the United States – Natural Gas Dispensers PCI SSC Legal Terms and Conditions Safety Instructions Hazardous Locations Americans with Disabilities Act (ADA) Requirements Introduction Related Documents ........................................
  • Page 6 Bennett CNG Series Installation Manual Table of Contents Table of Contents Step 4 - Station PLC Communication Wiring-RS-485 ....................... 20  Step 5 – Additional Components ............................... 20  General Wiring Instructions ..................................... 21 Installing Conduit at the Dispenser ..................................21 Beginning the Wiring Process ....................................

  • Page 7: Safety Instructions

    Bennett CNG Series Installation Manual Safety Instructions Safety Instructions For safe installation of this equipment, read and understand all dangers, warnings, and cautionary information. Save this safety information in a readily accessible location. Look for the following warnings throughout the manual: Red and White “DANGER”...
  • Page 8 Environmental Standards® Health, Safety, Security & Environment (HSSE) policies. Note: Bennett Pump highly recommends all technicians observe HSSE policies defined by the supplier. Bennett Pump does not impose any restrictions or additional requirements contained in Environmental Standards® Health, Safety, Security &...

  • Page 9: Hazardous Locations

    Bennett CNG Series Installation Manual Hazardous Locations Hazardous Locations Classified areas are used to describe the fire or explosion hazards present in a specific area. For safe operation, ensure that the dispenser is in a classified area as detailed below per NFPA 52, Vehicular Natural Gas Fuel Systems Code and NFPA 70, National Electric Code.
  • Page 10 Bennett CNG Series Installation Manual Hazardous Locations Hazardous Locations Figure 2 - Classified Areas Overhead View...

  • Page 11: Americans With Disabilities Act (Ada) Requirements

    Bennett CNG Series Installation Manual Americans with Disabilities Act (ADA) Requirements Americans with Disabilities Act (ADA) Requirements To meet the technical requirements established by the American with Disabilities Act (ADA) per Chapter 3 (Building Blocks), Section 308 (Reach Ranges), and Section 309 (Operable Parts). The forward and side reach maximum height is 48 inches above the finish floor or ground.
  • Page 12 Bennett CNG Series Installation Manual Americans with Disabilities Act (ADA) Requirements Page Intentionally Left Blank viii...

  • Page 13: Introduction

    Introduction Introduction This manual contains installation instructions for installing the CNG Series dispenser. Included are mechanical, transporting, wiring, and start-up instructions. For any additional installation information on ground storage modules, shear valves, hoses, breakaways, and the Bulk Compressed Natural Gas System. Please refer to the manufacturer’s installation instructions for proper installation.

  • Page 14: Codes And Standards

    PEI/RP1500, Recommended Practices for the Design, Installation, Operation and Maintenance of Compressed  Natural Gas Vehicle Fueling Facilities Recommended Materials The following items are recommended for proper installation of Bennett Dispensers. Anchor Bolts  Any additional installation equipment and/or tools for required for (hanging hardware, nozzles, hoses, valance, ...

  • Page 15: Component Approvals

    Bennett natural gas dispensers must only use listed or approved equipment for fueling. Components not installed by Bennett Pump Company must conform to all requirements and standards specified by NFPA 52, Compressed Natural Gas (CNG) Vehicular Fuel Systems, or CAN/CSA-B108, NGV Fueling Stations Installation Code, as applicable.

  • Page 16: Determining The Model Number And Dispenser Features

    Bennett CNG Series Installation Manual Introduction Introduction Determining the Model Number and Dispenser Features Determine the model number of the dispenser from the serial plate located on the front bottom rail. Utilizing the chart shown in Figure 4 determine the features of the dispenser to be installed. Understanding the features of the dispenser to be installed will be helpful in understanding the proper installation of the dispenser.

  • Page 17: General Installation

    Examine the shipment immediately upon arrival to make certain there has been no damage or loss in transit. Bennett Pump Company, as shipper, is not liable for the hazards of transportation. Please make damage claims directly to the truck line.

  • Page 18: How To Lift And Transport The Cng Series

    Underground piping must be buried no less than 18 inches below the surface of the ground unless otherwise protected from damage by movement of the ground. For optimal performance of the Bennett CNG dispenser ensure that all gas piping installations are in accordance with all local, state, federal, national codes and regulations.

  • Page 19: Cng Base Dimension Drawing

    Bennett CNG Series Installation Manual General Installation General Installation CNG Base Dimension Drawing DANGER: INSTALLATION MUST CONFORM TO NATIONAL, STATE, AND LOCAL CODES, INCLUDING NFPA2 AND NFPA 70. Figure 6 - Footprint CNG Base Dimension Drawing...

  • Page 20: Installing Breakaways, Hoses, And Nozzles

    Natural Gas Dispenser performance. CAUTION: Bennett Limited Warranty for Products Installed in the United States – Natural Gas Dispensers excludes hanging hardware, nozzles, hoses, fittings, and hose retractors. Please send all warranty claims to the original manufacturer. Contact Bennett Customer Service Department at 231-719- 6050 for questions.

  • Page 21: Piping Installation

    Bennett CNG Series Installation Manual Piping Installation Piping Installation General Piping Information WARNING: These notes are “MUST DO” requirements to ensure a successful installation that meets Bennett’s Limited Warranty requirements. Use only piping, valves, and tubing that are intended for natural gas service. Refer to Footprint Drawing P4631 on the previous page for tube sizes and additional information.

  • Page 22: Swagelok Gap Inspection Gauge

    Bennett CNG Series Installation Manual Piping Installation Piping Installation While holding the fitting body steady, tighten the nut one and one-quarter turns to the 9 o’clock position as shown in Figure 10. Figure 9 – Mark Nut Figure 10 – Tighten Nut...

  • Page 23: Testing For Leaks

    Bennett CNG Series Installation Manual Piping Installation Piping Installation Testing for Leaks Once the dispenser is mounted and anchored onto the concrete foundation, it is important to check all fittings prior to testing them for leaks. Note: Refer to the CNG Installation Diagram - Footprint for all references to tubing. See Figure 12 for Swagelok Tube locations.

  • Page 24: Purge System Theory Of Operation

    Bennett CNG Series Installation Manual Piping Installation Piping Installation Purge System Theory of Operation To prevent the formation of flammable combinations, compressed natural gas systems must be purged prior to usage. It is required for the electronic enclosure of the dispenser to maintain a minimum pressure differential of 0.15 inches of water at all times.

  • Page 25: Timer Board

    Bennett CNG Series Installation Manual Piping Installation Piping Installation Timer Board Note: The timer and relay are located in the Junction Box as shown in Figure 16, where the main power is terminated from the field wiring. Once the pressure differential returns to at least 0.15 inches of water column, the timer will delay the return of power for 3 minutes 30 seconds +/- 18 seconds (time is factory set).

  • Page 26: Purge System Tube Installation

    Bennett CNG Series Installation Manual Piping Installation Piping Installation Purge System Tube Installation To connect the blower to the dispenser, use the 2-inch (50 mm) PVC nipple as noted from the footprint of the dispenser to the blower port at the bottom of the flame deck as shown in Figures 18 and 19. Note: Refer to the CNG Installation Diagram –...

  • Page 27: Purging System Blower [Optional]

    Refer to the original equipment manufacturer instructions for detailed installation instructions. See Figure 21 below for the Bennett Purge Air Supply box, which uses a Fasco 50752-D500 blower and 10 x 10 x 1 MERV 13 air filter.
  • Page 28 Bennett CNG Series Installation Manual Piping Installation Piping Installation Page Intentionally Left Blank...

  • Page 29: Safety Systems

    Methane Alarm Non-Purge System [Optional] The Bennett CNG Dispenser utilizes a combustible gas detection system that consists of an audible and visual alarm as shown in Figure 22a and a methane detector as shown in Figure 22b. The methane detector is used to detect when methane is present at a lower explosive limit (LEL) 20%.

  • Page 30: Emergency Stop Switch [Side 2 Option]

    Bennett CNG Series Installation Manual Safety Systems Safety Systems Emergency Stop Switch [Side 2 Option] WARNING: To prevent electrical shock, disconnect from power source before installation or service. The emergency stop button (E-STOP) shown in Figure 23 is used as an emergency shutdown device to terminate power and stop the flow of fuel to the dispenser.

  • Page 31: Wiring Installation

    Diagrams section or on the CD-ROM or USB provided with the dispenser. Step 1 - AC Power Wires (350 watts 120v/240 VAC 50/60 Hz) Power is supplied by the Dispenser Power Board. The CNG Series requires the following wires. Note: These wires are routed through a factory-installed junction box.

  • Page 32: Step 4 - Station Plc Communication Wiring-Rs-485

    Bennett CNG Series Installation Manual Wiring Installation Wiring Installation Wiring Installation Wiring Installation Wiring Installation Wiring Installation Current Loop Fuel Communication There are two wires used per side of the dispenser for current loop fuel communication (1 sided pump = 2 wires).

  • Page 33: General Wiring Instructions

    Check with Federal, State, and Local Codes for conduit use in your area. Bennett recommends rigid metal conduit. Do not use PVC conduit. Use only Rigid metal conduit.

  • Page 34: Beginning The Wiring Process

    Bennett CNG Series Installation Manual Wiring Installation Wiring Installation Open the lower door on the dispenser on side 1 and locate the inlet wiring electrical conduit. The conduit is located on side 1 in the center. This conduit is where all of the field wires will be pulled into the hydraulics enclosure.

  • Page 35: Instructions For Earth Grounding The Equipment

    Instructions for Earth Grounding the Equipment WARNING: Failure to properly ground the equipment can cause injury or damage to the equipment and will void the Bennett Limited Warranty. WARNING: Absolutely no daisy chaining communication data wires, orange and yellow 18awg.

  • Page 36: Ac Power Wire Termination

    Check with Federal, State, and Local Codes for conduit use in your area. Do not use PVC conduit. Use only Rigid metal conduit. Using PVC conduit could void the Bennett Limited Warranty! Note: Conduit must be potted according to installation manual.

  • Page 37: Rs-485 Fuel Wire Termination: (White Terminal Block)

    Note: These wires are used for connecting remote consoles. Refer to console installation instructions for proper wiring methods. For all dispenser codes, the dispenser must be connected to an approved Bennett console or control device. Connect 1 Orange 18ga. (+positive) wire through the junction box to the Timer Board TS2, Terminal 4. Connect the other end to the Dual Fan Out Box (Interconnection Box).

  • Page 38: Generic Current Loop Without Purge Cabinet Fuel Wire Termination: (Dispenser Power Board Ts5)

    Station PLC Termination – Optional: (Dispenser Communication Board TS1) For use with a PLC Modbus communication link. Refer to Wiring Information for All CNG Series Remote Dispenser with 708 Electronics – Current Loop Diagram, RS 485 COMM Diagram, or Generic Current Loop Diagram for additional information.

  • Page 39: Additional Components Wiring

    For use with Remote Audio and Visual Alarms. Refer to Wiring and Installation CNG Series 708 CPU –Diagrams for additional information. Note: Audio and Visual Alarms installed and each dispenser shall be provided.

  • Page 40: Installing The Wire Separator

    Bennett CNG Series Installation Manual Wiring Installation Wiring Installation Installing the Wire Separator CAUTION: Data wires (two 18-gauge per fueling position) are dedicated to a particular fueling position. To prevent damage to the electronic circuit boards, do not mix the data wires, or connect them to any other data wires.

  • Page 41: Replace The Replace The Safety Covers

    Bennett CNG Series Installation Manual Wiring Installation Wiring Installation Replace the Replace the Safety Covers WARNING: All covers must be returned to their designed locations or the pump will be unsafe to operate and the warranty on this unit will be voided.

  • Page 42: Final Installation Checklist

    Bennett CNG Series Installation Manual Wiring Installation Wiring Installation Final Installation Checklist The Final Installation Checklist must be completed to ensure a successful and safe installation that meets Bennett’s Limited Warranty requirements. Completed Item Procedure √ Verify that all CNG fittings are tight and not leaking.

  • Page 43: Wiring Diagrams

    Bennett CNG Series Installation Manual Wiring Diagrams Wiring Diagrams Current Loop – 708 Electronics Note: Drawing schematic 120975 (P3400s2) can be found on the USB provided. Diagram 1 – 708 Electronics Current Loop...

  • Page 44: Current Loop Notes - 708 Electronics

    Bennett CNG Series Installation Manual Wiring Diagrams Wiring Diagrams Current Loop Notes – 708 Electronics Note: Drawing schematic 120975 (P3400s2) can be found on the USB provided. Diagram 1a – 708 Electronics Current Loop Notes...

  • Page 45: Rs-485 Comm - 708 Electronics

    Bennett CNG Series Installation Manual Wiring Diagrams Wiring Diagrams RS-485 COMM – 708 Electronics Note: Drawing schematic 120975 (P3400s3) can be found on the USB provided. Diagram 2– 708 Electronics RS485 COMM...

  • Page 46: Rs-485 Comm Notes - 708 Electronics

    Bennett CNG Series Installation Manual Wiring Diagrams Wiring Diagrams RS-485 COMM Notes – 708 Electronics Note: Drawing schematic 120975 (P3400s3) can be found on the USB provided. Diagram 2a– 708 Electronics RS485 Notes...

  • Page 47: Generic Current Loop - 708 Electronics

    Bennett CNG Series Installation Manual Wiring Diagrams Wiring Diagrams Generic Current Loop – 708 Electronics Note: Drawing schematic 120975 (P3400s4) can be found on the USB provided. Diagram 3– 708 Electronics Generic Current Loop...

  • Page 48: Generic Current Loop Notes - 708 Electronics

    Bennett CNG Series Installation Manual Wiring Diagrams Wiring Diagrams Generic Current Loop Notes – 708 Electronics Note: Drawing schematic 120975 (P3400s4) can be found on the USB provided. Diagram 3a– 708 Electronics Generic Current Loop Notes...

  • Page 49: Current Loop Without Purge Cabinet - 708 Electronics

    Bennett CNG Series Installation Manual Wiring Diagrams Wiring Diagrams Current Loop without Purge Cabinet – 708 Electronics Note: Drawing schematic 120975 (P3400s5) can be found on the USB provided. Diagram 4– 708 Electronics Current Loop without Purge Cabinet...

  • Page 50: Current Loop Without Purge Cabinet Notes - 708 Electronics

    Bennett CNG Series Installation Manual Wiring Diagrams Wiring Diagrams Current Loop without Purge Cabinet Notes – 708 Electronics Note: Drawing schematic 120975 (P3400s5) can be found on the USB provided. Diagram 4a– 708 Electronics Current Loop without Purge Cabinet Notes...

  • Page 51: Rs-485 Comm. Without Purge Cabinet - 708 Electronics

    Bennett CNG Series Installation Manual Wiring Diagrams Wiring Diagrams RS-485 COMM. without Purge Cabinet – 708 Electronics Note: Drawing schematic 120975 (P3400s6) can be found on the USB provided. Diagram 5– 708 Electronics RS-485 without Purge Cabinet...

  • Page 52: Rs-485 Comm. Without Purge Cabinet Notes - 708 Electronics

    Bennett CNG Series Installation Manual Wiring Diagrams Wiring Diagrams RS-485 COMM. without Purge Cabinet Notes – 708 Electronics Note: Drawing schematic 120975 (P3400s6) can be found on the USB provided. Diagram 5a– 708 Electronics RS485 COMM. without Purge Cabinet Notes...

  • Page 53: Generic Current Loop Without Purge Cabinet - 708 Electronics

    Bennett CNG Series Installation Manual Wiring Diagrams Wiring Diagrams Generic Current Loop without Purge Cabinet – 708 Electronics Note: Drawing schematic 120975 (P3400s7) can be found on the USB provided. Diagram 6– 708 Electronics Generic Current Loop without Purge Cabinet...

  • Page 54: Generic Current Loop Without Purge Cabinet Notes - 708 Electronics

    Bennett CNG Series Installation Manual Wiring Diagrams Wiring Diagrams Generic Current Loop without Purge Cabinet Notes – 708 Electronics Note: Drawing schematic 120975 (P3400s7) can be found on the USB provided. Diagram 6a– 708 Electronics Generic Current Loop without Purge Cabinet Notes...

  • Page 55: Rs485 Comm. 2-Sided Modbus - 708 Electronics

    Bennett CNG Series Installation Manual Wiring Diagrams Wiring Diagrams RS485 COMM. 2-Sided Modbus – 708 Electronics Note: Drawing schematic 120975 (P3400s8) can be found on the USB provided. Diagram 7– 708 Electronics RS485 COMM 2-Sided Modbus...

  • Page 56: Rs485 Comm. 2-Sided Modbus Notes - 708 Electronics

    Bennett CNG Series Installation Manual Wiring Diagrams Wiring Diagrams RS485 COMM. 2-Sided Modbus Notes – 708 Electronics Note: Drawing schematic 120975 (P3400s8) can be found on the USB provided. Diagram 7a– 708 Electronics RS485 COMM 2-Sided Modbus...

  • Page 57: Information Resources

    Other Manufacturers Equipment (OEM) Information CAUTION: Bennett Limited Warranty for Products Installed in the United States – Natural Gas Dispensers excludes hanging hardware, nozzles, hoses, fittings, and hose retractors. Please send all warranty claims to the original manufacturer. Contact Bennett Customer Service Department at 231-719- 6050 for questions.
  • Page 58 Bennett CNG Series Installation Manual Wiring Diagrams Page Intentionally Left Blank...
  • Page 59 Has the Dispenser Start-Up and Checklist been completed? Refer to the Installation Manual. Were all Bennett Installation Instructions followed per our Installation Manual? If not, please describe, in detail, anything out of the ordinary on the back of this page.
  • Page 60 CNG Site Audit Report CNG Site Audit Report Exceptions to Bennett Installation Instructions: Please list anything out of the ordinary or worth mentioned that might affect the safety or dispensing of the installed equipment. If there were any confusing instructions in our Installation Manual or start-up procedure please add your comments here.
  • Page 61 Bennett CNG Series Installation Manual Page Intentionally Left Blank...
  • Page 62 Bennett 1218 E. Pontaluna Road, Spring Lake, MI 49456 USA 800-235-7618 ~ Outside USA 231-798-1310 sales@bennettpump.com ~ www.bennettpump.com...

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