Bennett LNG Series Installation Manual
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Bennett LNG Series Installation Manual

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BENNETT LNG SERIES
LNG Series Remote Dispenser with 708 Electronics
Installation Manual
119639 Rev G 12/16/20
Introduction | General Installation | Piping Installation | Wiring Installation | Diagrams
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 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 For new manuals, visit our web page at IMPORTANT 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 3 Bennett LNG Series Installation Manual Bennett Limited Warranty Form 1-1010-4 Rev C 6-29-17...
  • Page 4 Bennett LNG Series Installation Manual Bennett Limited Warranty Page Intentionally Left Blank...

  • Page 5: Table Of Contents

    Bennett LNG Series Installation Manual Table of Contents TABLE OF CONTENTS Bennett Limited Warranty for Product Installed in the United States – Natural Gas Dispenser SECTION 1: SAFETY INFORMATION General Information ......................................2 Hazardous locations......................................2 Codes and Standards ......................................2 Unauthorized Alteration of Bennett Products ..............................
  • Page 6 Bennett LNG Series Installation Manual Table of Contents Page Intentionally Left Blank...

  • Page 7: Section 1: Safety Information

    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 & Environment (HSSE) policies.

  • Page 8: General Information

    Read this manual carefully and read all tags/labels attached to the LNG dispenser or pump before starting any maintenance and/or service. A dispenser or pump not properly maintained will not perform properly and will void the Bennett Limited Warranty. Before installation, operation, maintenance and/or service ensure that protection against lighting strikes are in accordance with the American Petroleum Institute Recommended Practice RP 2003, Protection Against Ignitions Arising out of Static, Lightening, and Stray Currents.

  • Page 9: Section 2: Introduction

    Introduction SECTION 2: INTRODUCTION This manual contains installation instructions for installing the LNG 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 Liquid Natural Gas System. Please refer to the manufacturer’s installation instructions for proper installation.

  • Page 10: Recommended Equipment And Materials

    Relief Tubing shall be a Minimum ½” 316 Stainless Steel Tubing” 316 Stainless Steel Seamless Tubing Instrument Air Tubing shall be a Minimum ¼” 316 Stainless Steel Seamless Tubing  Purge Blower must provide at least 65 CFM to dispenser. Reference Bennett Part Number 120536. CUSTOMER SUPPLIED MA TERIALS CAUTION: USE ONLY UL LISTED RIGID METAL CONDUIT AND UL LISTED SEALING FITTINGS WITH CONDUCTOR SEALS.

  • Page 11: Section 3: 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 12: How To Lift And Transport The Lng Series

    Bennett LNG Series Installation Manual General Installation HOW TO LIFT AND TRAN SPORT THE LNG SERIES Eyebolts for lifting and transporting the dispenser are included with the dispenser. To transport the dispenser, remove the bolts and install the eyebolts. Once transport is complete, re-install the bolts. Note: Refer to Figure 3.1 for the only factory approved method for lifting the LNG Series.

  • Page 13: Lng (4R And Older) Footprint Drawing

    Bennett LNG Series Installation Manual General Installation LNG (4R AND OLDER) FOOTPRINT DRAWING DANGER: INSTALLATION TO CONFORM TO NATIONAL, STATE AND LOCAL CODES, INCLUDING NFPA 52 AND NFPA 70. Read all CAUTION and DANGER statements below before product inlet installation. Note: The following drawing (119713-P3249s4) shown in Figure 3.2 can also be found on USB located inside the dispenser’s electrical enclosure.

  • Page 14: Lng (5R And Newer) Base Dimension Drawing

    Bennett LNG Series Installation Manual General Installation LNG (5R AND NEWER) BASE DIMENSION DRAWING DANGER: INSTALLATION TO CONFORM TO NATIONAL, STATE AND LOCAL CODES, INCLUDING NFPA 52 AND NFPA 70. Read all CAUTION and DANGER statements below before product inlet installation. Note: The following drawing (119713-P3249s1) shown in Figure 3.3 can also be found on USB located inside the dispenser’s electrical enclosure.

  • Page 15: Lng 2-Inch Footprint (P6240-144062)

    Bennett LNG Series Installation Manual General Installation LNG 2-INCH FOOTPRINT (P6240-144062) DANGER: INSTALLATION TO CONFORM TO NATIONAL, STATE AND LOCAL CODES, INCLUDING NFPA 52 AND NFPA 70. Read all CAUTION and DANGER statements below before product inlet installation. Note: The following drawing (114062-P6240s1) shown in Figure 3.4 can also be found on USB located inside the dispenser’s electrical enclosure.
  • Page 16 Bennett LNG Series Installation Manual General Installation OVERALL VIEW FIGURE 3.4a – LNG 2-INCH DISPENSER FOOTPRINT – OVERALL VIEW...
  • Page 17 Bennett LNG Series Installation Manual General Installation VIEW FROM TOP (SECTI ON B-B SCALE ¼) FIGURE 3.4b – LNG 2-INCH DISPENSER FOOTPRINT – VIEW FROM TOP (SECTION B-B SCALE ¼)
  • Page 18 Bennett LNG Series Installation Manual General Installation VIEW FROM TOP (SECTI ON C-C SCALE ¼) FIGURE 3.4c – LNG 2-INCH DISPENSER FOOTPRINT – VIEW FROM TOP (SECTION C-C SCALE ¼) NOTES FIGURE 3.4d – LNG 2-INCH DISPENSER FOOTPRINT – NOTES...

  • Page 19: Methane Alarm Non-Purge System (Optional)

    (i.e. Regular replacement of sensor). The Bennett LNG Dispenser utilizes a combustible gas detection system that consists of an audible and visual alarm as shown in Figure 3.5 and a methane detector as shown in Figure 3.5b. The methane detector detects when methane is present at a lower explosive limit (LEL) 20%.

  • Page 20: Emergency Stop Switch

    Bennett LNG Series Installation Manual General Installation EMERGENCY STOP SWITC H WARNING: To prevent electrical shock, disconnect from power source before installation or service. The emergency stop button (E-STOP) is an emergency shutdown device to terminate power and stop the flow of fuel to the dispenser. A second E-Stop button is optional for Side 2 of the LNG Dispenser.

  • Page 21: Section 4: Piping Installation

    Bennett LNG Series Installation Manual Piping Installation SECTION 4: PIPING INSTALLATION GENERAL PIPING INFORMATION WARNING: THESE NOTES ARE “MUST DO” REQUIREMENTS TO ENSURE A SUCCESSFUL INSTALLATION THAT MEETS BENNETT’S LIMITED WARRANTY REQUIREMENTS. WARNING: IF USING THE DISPENSER WITH SATURATED LNG THE FOLLOWING MUST BE FOLLOWED. LNG REFUELING SITES UTILIZING OR DISPENSING SATURATED LNG WITH PERSONNEL IN THE IMMEIDATE VICINITY SHALL PROVIDE BARRIER WALLS OR EQUAL PROTECTION IN ORDER TO PROTECT THE REFUELING OPERATOR AND VEHICLE.

  • Page 22: 5R And Newer Tube Loca Tions

    Bennett LNG Series Installation Manual Piping Installation 5R AND NEWER TUBE LOCA TIONS The table below indicates the tube location, size and a description for each line required for field connections. Refer to Figure 4.2 and 4.3 for tube locations and page eight for the LNG Installation Diagram - Footprint for exact piping sizes and locations.

  • Page 23: 2-Inch Tube Locations

    Bennett LNG Series Installation Manual Piping Installation 2-INCH TUBE LOCATIONS The table below indicates the 2-inch tube location, size and a description for each line required for field connections. Refer to Figures 4.4 and 4.5 for tube locations and page nine for the LNG Installation Diagram – Footprint (114062-P6240s1) for exact piping sizes and locations.

  • Page 24: 2-Inch Fill Outlet & Vent Vapor Recovery Breakaway Locations

    Bennett LNG Series Installation Manual Piping Installation 2-INCH FILL OUTLET & VENT VAPOR RECOVERY BREAK AWAY LOCATIONS The table below indicates the 2-inch fill outlet and vent vapor recovery breakaway location, size and a description for each ball valve required for field connections. Refer to Figure 4.6 for breakaway connection locations and page nine for the LNG Installation Diagram - Footprint for exact piping sizes and locations.

  • Page 25: Testing For Leaks

    Bennett LNG Series Installation Manual Piping Installation TESTING FOR LEAKS Once the dispenser is mounted and anchored onto the island, it is important to check all fittings prior to testing them for leaks. Follow these steps to test the inlet instrument air “D” for leaks: Spray the inlet instrument air “D”...

  • Page 26: Purge System Tube Installation

    Bennett LNG Series Installation Manual Piping Installation HINT The timer board relies on a charged battery for proper operation. If the battery is discharged, the timer will have to be bypassed through the bypass push button on the timer board as shown in Figure 4.9. The switch will have to be held until the battery reaches a suitable charge level.

  • Page 27: Purging System Blower [Optional]

    Refer to the original equipment manufacturer instructions for detailed installation instructions. See Figure 4.13 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 LNG Series Installation Manual Piping Installation Page Intentionally Left Blank...

  • Page 29: Section 5: Wiring Installation

    RS-485 wires should be twisted together no less than 3 turns per foot to reduce the effects of electrical noise on the communication circuit. Due to the risk of noise, causing possible problems with communication, Bennett highly recommend the use of twisted wires, but does not require it.

  • Page 30: 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. Using PVC conduit could void the Bennett Limited Warranty. All wiring gauges is minimum required, stranded wire with THHN insulation must be used. Do not use wire smaller than listed on the Bennett wiring diagrams.

  • Page 31: Beginning The Wiring Process

    Bennett LNG Series Installation Manual Wiring Installation BEGINNING THE WIRING PROCESS IMPORTANT: Check your dispenser options prior to beginning the wiring process. Locate the inlet wiring electrical conduits. Refer to the dispenser footprint diagram for inlet sizes and locations. This product must be properly grounded. Each dispenser requires a 12-gauge stranded THHN earth ground wire. Refer to the Instructions for Earth Grounding the Equipment section for detailed installation instructions.

  • Page 32: Ac Power Wiring

    Data communication wires are required for operation of each fueling position with a control console or controller. The data wires can be put in the same conduit as the other pump wiring. Refer to the wiring information for all LNG Series Remote Dispenser with 708 Electronics –...

  • Page 33: Additional Components Wiring

    CAUTION: The installation of audio and visual alarms must be in accordance with all applicable Local Codes and must be certified for the area. For use with Remote Audio and Visual Alarms. Refer to Wiring and Installation LNG Series 708 CPU –Diagrams for additional information. Note: Audio and Visual Alarms installed and each dispenser shall be provided.

  • Page 34: Installing The Wire Separator

    Bennett LNG Series Installation Manual Wiring Installation INSTALLING THE WIRE SEPARATOR A safe installation requires that a wire separator be installed on the wires as they are routed through the conduit and into the dispenser’s electronic enclosure. The wire separator holds the wires apart to ensure that the seal off compound fully seals around each wire. Apply the potting compound during the last step of installation.

  • Page 35: Dispenser Start-Up

    Bennett LNG Series Installation Manual Wiring Installation DISPENSER START-UP DANGER: FIRE, EXPLOSION, INJURY OR DEATH WILL OCCUR IF FUEL VAPORS ARE PRESENT. MAKE SURE THERE ARE NO HAZARDOUS GASES PRESENT BEFORE STARTING THIS PROCEDURE. CAUTION: TO PREVENT DAMAGE TO THE DISPENSER, FOLLOW THE PROPER START-UP PROCEDURES.

  • Page 36: Final Installation Checklist

    Bennett LNG Series Installation Manual Wiring Installation FINAL INSTALLATION C HECKLIST 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 LNG fittings are tight and not leaking.

  • Page 37: Section 6: Wiring Diagrams

    Bennett LNG Series Installation Manual Wiring Diagrams SECTION 6: WIRING DIAGRAMS 708 ELECTRONICS AND CURRENT LOOP (P/N 121291-P3249s2) DIAGRAM 1 – 708 ELECTRONICS CURRENT LOOP...

  • Page 38: 708 Electronics And Current Loop Notes

    Bennett LNG Series Installation Manual Wiring Diagrams 708 ELECTRONICS AND CURRENT LOOP NOTES (P/N 121291-P3249s2) Diagram 2 – 708 Electronics Current Loop Notes...

  • Page 39: 708 Electronics And Rs485 Comm

    Bennett LNG Series Installation Manual Wiring Diagrams 708 ELECTRONICS AND RS485 COMM. (P/N 121291-P3249s3) DIAGRAM 3– 708 ELECTRONICS RS485...

  • Page 40: 708 Electronics And Rs485 Comm. Notes

    Bennett LNG Series Installation Manual Wiring Diagrams 708 ELECTRONICS AND RS485 COMM. NOTES (P/N 121291-P3249s3) DIAGRAM 4– 708 ELECTRONICS RS485 NOTES...

  • Page 41: 2-Inch 708 Electronics Wiring Diagram

    Bennett LNG Series Installation Manual Wiring Diagrams 2-INCH 708 ELECTRONICS WIRING DIAGRAM (P/N 144062-P6240s2) DIAGRAM 5– 2-INCH 708 ELECTRONICS WIRING DIAGRAM...

  • Page 42: 2-Inch 708 Electronics Notes For Wiring Diagram

    Bennett LNG Series Installation Manual Wiring Diagrams 2-INCH 708 ELECTRONICS NOTES FOR WIRING DIAGRAM (P/N 144062-P6240s3) DIAGRAM 4– 2-INCH 708 ELECTRONICS NOTES FOR WIRING DIAGRAM...

  • Page 43: Lng Site Audit Report

    Bennett LNG Series Installation Manual LNG Site Audit Report LNG SITE AUDIT REPORT Form# 119640 Rev A 5-2-18...
  • Page 44 Bennett LNG Series Installation Manual LNG Site Audit Report Form# 119640 Rev A 5-2-18...
  • Page 45 Bennett LNG Series Installation Manual Page Intentionally Left Blank...
  • Page 46 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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