Raven AccuFlow Installation & Operation Manual
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Raven AccuFlow Installation & Operation Manual

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Installation & Operation Manual
AccuFlow™ and AccuFlow HP™
AccuFlow HP Patent Pending

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Summary of Contents for Raven AccuFlow

  • Page 1 Installation & Operation Manual AccuFlow™ and AccuFlow HP™ AccuFlow HP Patent Pending...
  • Page 2 GPS, GNSS, SBAS, etc.). Therefore, Raven Industries cannot guarantee the accuracy, integrity, continuity, or availability of these services and cannot guarantee the ability to use Raven systems, or products used as components of systems, which rely upon the reception of these signals or availability of these services.

  • Page 3: Table Of Contents

    ..................21 Dual Cooler Installation ......................22 Checking for System Leaks ....................23 Chapter 4 Standard AccuFlow™ Calibration and Operation ..... 25 Programming NH3 Rate Control ..................... 25 Adjusting the Boom Cal ..................... 25 Adjusting the Speed Cal ....................25 Adjusting the Meter Cal .....................
  • Page 4 Adjusting the Valve Cal ...................... 45 Adjusting the Rate Cal ....................... 45 Programming Boost Pump Control ..................45 Charging the AccuFlow™ System and Calibrating the Pressure Transducer ......46 Verifying AccuFlow HP™ Operation ..................47 Chapter 7 Service and Maintenance............. 49 Discharging the AccuFlow™...

  • Page 5: Important Safety Information

    ) supplier. • Follow all safety labels affixed to the AccuFlow system components. Be sure to keep safety labels in good condition and replace any missing or damaged labels. To obtain replacements for missing or damaged safety labels, contact a local Raven dealer.
  • Page 6 Use extreme caution when opening a previously pressurized system. Before performing service or maintenance on the AccuFlow system, read and follow the instructions provided in the Discharging the AccuFlow™ System section on page 4 or page 50 to properly discharge the super cooler and application lines.

  • Page 7: Additional Safety Information

    Important Safety Information Caution Decal Affixed to AccuFlow Super Cooler (P/N 039-0159-035) FIGURE 2. Additional Safety Information Electrical Safety CAUTION Do not reverse power leads. Doing so could cause severe damage to the equipment. Always make sure that the power leads are connected to the correct polarity as marked.

  • Page 8: Discharging The Accuflow™ System

    Allow a minimum of one (1) hour to fully discharge the system. Verify that the pressure gauge on the AccuFlow manifold reads zero and the super cooler is not cold to the touch before opening the system. This ensures that all liquid NH has evaporated and pressure has been discharged.

  • Page 9: Introduction

    -28° F [-33° C] or kept under pressure at higher temperatures. To help ensure that the ammonia is in a liquid state as it passes through the flow meter the AccuFlow super cooler uses a small amount of anhydrous ammonia from the nurse tank to reduce the temperature of the ammonia being applied.

  • Page 10: Standard Accuflow™ Kit Contents

    Please review the following tables for components, parts, and fittings which should have been supplied with the Raven AccuFlow system. It may be necessary to order some components of the AccuFlow system separately. Before beginning assembly and installation, verify that all required components have been purchased.
  • Page 11 333-0002-004 • Clamp, Worm Drive Hose 435-3003-002 Barb • Fitting, 1/2” NPT x 3/8” Hose 333-0002-006 Barb Note: The single to dual cooler kit (P/N 117-0171-390) also includes an additional AccuFlow™ super cooler (P/N 063-0173-314). Manual No. 016-0171-496 Rev. C...

  • Page 12: Accuflow Hp™ Kit Contents

    Please review the following tables for components, parts, and fittings which should have been supplied with the Raven AccuFlow HP system. It may be necessary to order some components of the AccuFlow system separately. Before beginning assembly and installation, verify that all required components have been purchased.

  • Page 13: Updates

    Introduction Updates Updates for Raven manuals as well as software updates for Raven consoles are available at the Raven Applied Technology Division web site: www.ravenhelp.com At Raven Industries, we strive to make your experience with our products as rewarding as possible.
  • Page 14 Chapter 2 AccuFlow™ and AccuFlow HP™ Installation & Operation Manual...

  • Page 15: Standard Accuflow™ Installation

    S tandard AccuFlow™ CHAPTER C h a p t e r 3 Installation The following sections are included to illustrate the proper procedure for mounting and plumbing the AccuFlow system. DANGER Anhydrous ammonia can cause severe burning, blindness, or death. Refer to the Discharging the AccuFlow™...

  • Page 16: Assembling The Accuflow™ System

    FIGURE 1. Note: AccuFlow systems with a fast control valve (P/N 063-0173-204) will only have a single control valve in place of the control valve and master on/off Valve as shown in the diagram above. AccuFlow™ and AccuFlow HP™ Installation & Operation Manual...

  • Page 17: Accuflow™ Kit Assembly

    Standard AccuFlow™ Installation AccuFlow™ Kit Assembly AccuFlow System (30 GPM [113 L/min] - D/N 054-0159-330) FIGURE 2. Note: The relief valve (P/N 334-0002-005) must be replaced every five years from the date of manufacture. Refer to Relief Valve Replacement Procedure section on page 55 for replacement instructions.
  • Page 18 Chapter 3 AccuFlow System (30 GPM [113 L/min - D/N 054-0159-330) Continued FIGURE 3. AccuFlow™ and AccuFlow HP™ Installation & Operation Manual...

  • Page 19: Mounting The Accuflow™ System

    Use the provided u-bolts and hardware (P/N 107-0159-447) to mount the AccuFlow system directly to the frame of the tool bar or implement. The intake port of the AccuFlow super cooler should be pointing toward the rear of implement and nurse tank.

  • Page 20: Emergency Shut-Off Rope Installation

    AccuFlow™ system. If the emergency shut-off rope cannot be routed to the vehicle’s cab, make sure to orient the vehicle to allow the rope to be pulled from a location upwind of the implement. AccuFlow™ and AccuFlow HP™ Installation & Operation Manual...

  • Page 21: Vapor And Applicator Line Installation

    AccuFlow cooler. Install a high flow break-away coupler to connect the nurse tank and the AccuFlow intake port. A high flow tank valve is also recommended.
  • Page 22 Consult a local NH supplier for appropriate hoses, break-away fittings, manifolds, and orifices for use with the AccuFlow system. Always install breakaway fittings in the nurse tank supply lines to reduce NH discharge if the nurse tank accidentally disconnects from the implement. Verify installation by referring to Figure 1 on page 12.
  • Page 23 Standard AccuFlow™ Installation Vapor Tube Distribution Using 3/4” Vapor Tubes FIGURE 7. Vapor Tube Distribution Using 1/2” Vapor Tubes FIGURE 8. Manual No. 016-0171-496 Rev. C...

  • Page 24: Mounting The Manifold

    FIGURE 9. Note: If more than two manifolds will be used with the AccuFlow™ system, a flow divider manifold will be required. Follow the manifold manufacturer instructions for proper orientation and installation. AccuFlow™ and AccuFlow HP™ Installation & Operation Manual...

  • Page 25: Accuflow™ Multi-Section Control

    AccuFlow systems with a fast control valve (P/N 063-0173-204) will only have a single control valve in place of the control valve and master on/off Valve as shown in the diagram above.

  • Page 26: Dual Cooler Installation

    Pipe joints must be properly sealed with RectorSeal™, or an equivalent thread sealant, to prevent leaks. The following diagrams are provided to assist with mounting and connecting an AccuFlow™ dual cooler system. Dual Cooler AccuFlow System (D/N 016-0171-508) FIGURE 11.

  • Page 27: Checking For System Leaks

    FIGURE 12. Checking for System Leaks Once the AccuFlow™ has been installed on the implement, check the system for leaks by charging the system with compressed air and applying soapy water to all plumbing joints and hoses. Thoroughly examine plumbing connections for bubbles indicating any kind of leak.
  • Page 28 Chapter 3 AccuFlow™ and AccuFlow HP™ Installation & Operation Manual...

  • Page 29: Standard Accuflow™ Calibration And Operation

    Calibration and Operation This chapter contains information on calculating or adjusting calibration values for the AccuFlow™ system. These values must be programmed on the console providing product control. Refer to the control console Installation and Operation manual for detailed programming instructions.

  • Page 30: Adjusting The Meter Cal

    Adjusting the Meter Cal Locate the meter cal value printed on the tag attached to the AccuFlow™ flow meter. This value will be referred to as the “original meter cal.” The original meter cal can be adjusted to display application rates in either pounds of actual nitrogen per acre (lbs(N)/acre), or kilograms of actual nitrogen per hectare (kg(N)/ha).

  • Page 31: Adjusting The Valve Cal

    68 x 10 x 1220 = 13.8 kg(N)/min 60,000......(EQ 8) The maximum capacity of the 30 GPM AccuFlow system is 126 lbs(N)/min [57 kg(N)/min]. Contact a local Raven dealer if the maximum rate is exceeded. System Capacity Chart The following figure illustrates the capacity of the AccuFlow™ system in various configurations. Refer to this chart as part of the calculation for required capacity and when troubleshooting the AccuFlow system.

  • Page 32: Charging The Accuflow™ System

    Verify that all hoses, fittings, and mounting bolts are securely fastened or tightened. Verify that the AccuFlow flow meter is connected to the flow meter connector on the flow meter cabling. Verify that the AccuFlow control valve is connected to the flow or product cable connector.

  • Page 33: Verifying Accuflow™ Operation

    Standard AccuFlow™ Calibration and Operation Verifying AccuFlow™ Operation Once the AccuFlow system is charged, the system is ready for the application of anhydrous ammonia to the field(s). The following items should be checked periodically to ensure proper operation of the AccuFlow system...
  • Page 34 Chapter 4 Pressure vs. Temperature Chart FIGURE 2. AccuFlow™ and AccuFlow HP™ Installation & Operation Manual...

  • Page 35: Accuflow Hp™ Installation

    A ccuFlow HP™ CHAPTER C h a p t e r 5 Installation The following sections are included to illustrate the proper procedure for mounting and plumbing the AccuFlow HP system. DANGER Anhydrous ammonia can cause severe burning, blindness, or death. Refer to the Discharging the AccuFlow™...

  • Page 36: Mounting The Accuflow Hp™ System

    Mounting the AccuFlow HP™ System Use u-bolts and other hardware to securely mount the AccuFlow HP system directly to the frame of the tool bar or implement. The intake ports of the AccuFlow super coolers should be pointing toward the rear of implement and nurse tank.
  • Page 37 AccuFlow HP™ Installation AccuFlow HP System Replacement Parts (D/N 054-0159-331) FIGURE 2. Manual No. 016-0171-496 Rev. C...
  • Page 38 Chapter 5 AccuFlow HP System Replacement Parts (D/N 054-0159-331 - Continued) FIGURE 3. AccuFlow™ and AccuFlow HP™ Installation & Operation Manual...

  • Page 39: Emergency Shut-Off Rope Installation

    WARNING Anhydrous ammonia can cause severe burning, blindness, or death. Always work upwind of an implement with the AccuFlow™ system. If the emergency shut-off rope cannot be routed to the vehicle’s cab, make sure to orient the vehicle to allow the rope to be pulled from a location upwind of the implement.

  • Page 40: Accuflow Hp™ Vapor And Applicator Line Installation

    This hose should be as short as possible and must be no longer than 15 feet [4.5 m] Install a high flow break-away coupler to connect the nurse tank and the AccuFlow intake port. A high flow tank valve is also recommended.
  • Page 41 Consult a local NH supplier for appropriate hoses, breakaway fittings, manifolds, and orifices for use with the AccuFlow HP system. Always install breakaway fittings in the nurse tank supply lines to reduce NH discharge if the nurse tank accidentally disconnects from the implement.
  • Page 42 Chapter 5 AccuFlow HP Assembly FIGURE 6. Boost Pump Flow Meter Check Valve Vapor Tube Distribution Using 3/4” Vapor Tubes FIGURE 7. AccuFlow™ and AccuFlow HP™ Installation & Operation Manual...
  • Page 43 AccuFlow HP™ Installation Vapor Tube Distribution Using 1/2” Vapor Tubes FIGURE 8. Manual No. 016-0171-496 Rev. C...

  • Page 44: Mounting The Manifold

    FIGURE 9. Note: If more than two manifolds will be used with the AccuFlow™ system, a flow divider manifold will be required. Follow the manifold manufacturer instructions for proper orientation and installation. AccuFlow™ and AccuFlow HP™ Installation & Operation Manual...

  • Page 45: Accuflow™ Multi-Section Control

    Contact a local NH dealer for proper orifice diameter, flow dividers, and manifold selections for the specific application. The fast valve system will not have an on/off valve within the AccuFlow HP assembly. Adding a flow divider will decrease the pressure of anhydrous ammonia for application. Size the flow divider for minimal pressure drop to avoid reducing system capacity.

  • Page 46: Boost Pump Hydraulic Connections

    Once the AccuFlow HP™ has been installed on the implement, check the system for leaks by charging the system with compressed air and applying soapy water to all plumbing joints and hoses. Thoroughly examine plumbing connections for bubbles indicating any kind of leak.

  • Page 47: Accuflow Hp™ Calibration And Operation

    Calibration and Operation This chapter contains information on calculating or adjusting calibration values for the AccuFlow HP™ system. These values must be programmed on the console providing product control. Refer to the console Installation and Operation manual for detailed programming instructions.

  • Page 48: Programming Nh3 Rate Control

    Adjusting the Meter Cal Locate the meter cal value printed on the tag attached to the AccuFlow™ flow meter. This value will be referred to as the “original meter cal.” The original meter cal can be adjusted to display application rates in either pounds of actual nitrogen per acre (lbs(N)/acre), or kilograms of actual nitrogen per hectare (kg(N)/ha).

  • Page 49: Adjusting The Valve Cal

    AccuFlow HP™ Calibration and Operation Adjusting the Valve Cal Refer to the Raven console Installation and Operation Manual for instructions on calculating or adjusting the valve cal. Note: The valve cal may need to be adjusted to obtain desired results, particularly in applications using low flow rates.

  • Page 50: Charging The Accuflow™ System And Calibrating The Pressure Transducer

    Verify that all hoses, fittings, and mounting bolts are securely fastened or tightened. Verify that the AccuFlow flow meter is connected to the flow meter connector on the flow meter cabling. Verify that the AccuFlow control valve is connected to the flow or product cable connector.

  • Page 51: Verifying Accuflow Hp™ Operation

    This value must be set to the gauge pressure of the AccuFlow system or tool bar, not the anhydrous tank pressure. Turn the nurse tank shut-off valve to fully open. The AccuFlow system is now charged and ready for operation.
  • Page 52 If an additive such as N-Serve (Dow Chemical) or ACA (Amoco) is used with the system, periodic cleaning of the AccuFlow flow meter may be required. Refer to Chapter 7, Service and Maintenance, for instructions on performing maintenance on the AccuFlow cooler or flow meter.

  • Page 53: Service And Maintenance

    C h a p t e r 7 Maintenance The following sections are included to illustrate the proper procedure for servicing and maintaining the AccuFlow™ system. This chapter also includes instructions for disassembling the AccuFlow super cooler for cleaning and storage. DANGER Anhydrous ammonia can cause severe burning, blindness, or death.

  • Page 54: Discharging The Accuflow™ System

    Allow a minimum of one (1) hour to fully discharge the system. Verify that the pressure gauge on the AccuFlow manifold reads zero and the super cooler is not cold to the touch before opening the system. This ensures that all liquid NH has evaporated and pressure has been discharged.

  • Page 55: Servicing And Storing The Accuflow™ System

    System When storing the AccuFlow or AccuFlow HP system or when the system will not be used for extended periods, clean the inside of the super cooler with kerosene and coat with a 10 weight motor oil. Refer to the following section for instructions on disassembling the AccuFlow super cooler to perform service or maintenance.
  • Page 56 If the super cooler is disassembled for cleaning, be sure to replace the cooler seals. Refer to the following figure and table for assistance with identifying the appropriate seal kit for the specific cooler model. AccuFlow™ and AccuFlow HP™ Installation & Operation Manual...
  • Page 57 5/64” from the cooler body. 063-0159-837 and 219-0000-144 Newer style cooler with flanges flush with cooler 063-0172-877 117-0171-121 219-0000-143 body 063-0173-314 AccuFlow Gasket Retainer Kit (P/N 117-0171-121) TABLE 3. Qty. Components • Installation Sheet 016-0171-129 • Retainer 107-0171-803 • Gasket 219-0000-142C •...

  • Page 58: Strainer Maintenance Procedure

    AccuFlow system before beginning maintenance. Refer to the Discharging the AccuFlow™ System and ensure that all NH3 has evaporated and vapors have been exhausted before proceeding. Remove the strainer cap and remove the ceramic magnets, teflon washer and strainer screen (not shown).

  • Page 59: Relief Valve Replacement Procedure

    Flow Meter Housing and Assembly FIGURE 4. To avoid introducing foreign material to the AccuFlow system, brush off the outside of the flow meter before disassembling and removing the flow meter. Carefully remove the retaining rings. Manual No. 016-0171-496 Rev. C...
  • Page 60 AccuFlow™ and AccuFlow HP™ Installation & Operation Manual...

  • Page 61: Troubleshooting

    Raven control console reports inaccurate AccuFlow™ measurements (i.e. console indicates more product applied than actual product removed from tank). Record the operating temperature and pressure as well as static tank pressure from the AccuFlow gauges mounted on manifold. Refer to Figure 1, “Typical AccuFlow System (Single Section, Two Valves),” on page 12 for assistance locating gauges.
  • Page 62 Check operation of the master switch. If none of the above steps resolve the issue, the console may require repair. Contact a local Raven dealer for further assistance.
  • Page 63 Troubleshooting Issue 5: Indictor light(s) on specific keys will not illuminate. Solution: The console may require repair. Contact a local Raven dealer for further assistance. Issue 6: Console displays flashing “CAL” whenever vehicle engine is started. Solution: Check battery voltage.
  • Page 64 Clean pins and sockets on speed sensor cable connectors. If no speed sensor extension cable is installed, the speed sensor switch assembly may require a replacement. Contact a local Raven dealer for further assistance. Issue 11: (Wheel Drive Speed Sensors) Speed display is inaccurate or unstable.
  • Page 65 In manual (MAN) control mode, verify that the rate display holds a constant value. If the rate display is unstable, see Issue 17 for further troubleshooting tips. Hoses connecting the AccuFlow system should not exceed 15’ [4.5 m] of 1-1/4” hoses and a 1-1/4” breakaway.
  • Page 66 Clean flow meter according to the Flow Meter Maintenance and Adjustment section on page 55. See console installation manual. Issue 17: Motorized control valve rotates more than 1/4 turn. Solution: Replace motorized control valve. AccuFlow™ and AccuFlow HP™ Installation & Operation Manual...
  • Page 67 If additives such as N-Serve or ACA have been or are being used with the AccuFlow system, disassemble and clean super cooler chamber. See Chapter 7, Service and Maintenance, for more information about servicing the super cooler.
  • Page 68 Chapter 8 AccuFlow™ and AccuFlow HP™ Installation & Operation Manual...

  • Page 69: System Diagrams

    AccuFlow™ Two-Valve Kit Assembly (P/N 117-0171-384) FIGURE 1. AccuFlow™ Single/Fast Valve Kit Assembly (P/N 117-0171-386) FIGURE 2. Note: Contact a local Raven dealer for additional information or assistance with cabling or Raven AccuFlow system components. Manual No. 016-0171-496 Rev. C...
  • Page 70 Chapter 9 Generation 2 CAN Standard AccuFlow™ Cable Connections FIGURE 3. (3 Section Tool Bar - D/N 054-5300-001) AccuFlow™ and AccuFlow HP™ Installation & Operation Manual...
  • Page 71 System Diagrams Generation 2 CAN Standard AccuFlow™ Cable Connections FIGURE 4. (6 Section Tool Bar - D/N 054-5300-002) Manual No. 016-0171-496 Rev. C...
  • Page 72 Chapter 9 Envizio Pro/Switch Pro (SCS 4400 Cabled Systems) with AccuFlow™ FIGURE 5. (2 Valve, Multi-Section Tool Bar - D/N 054-2040-025) AccuFlow™ and AccuFlow HP™ Installation & Operation Manual...
  • Page 73 System Diagrams Envizio Pro/Switch Pro (SCS 440/450 Cabled Systems) with AccuFlow™ FIGURE 6. (2 Valve, Multi-Section Tool Bar - D/N 054-2040-028) Manual No. 016-0171-496 Rev. C...
  • Page 74 Chapter 9 SCS 4400 with AccuFlow™ System (2 Valve, Single Section Tool Bar - D/N 054-2840-011) FIGURE 7. AccuFlow™ and AccuFlow HP™ Installation & Operation Manual...
  • Page 75 System Diagrams SCS 4400 with AccuFlow™ System FIGURE 8. (2 Valve System, Multi-Section Tool Bar - D/N 054-2840-013) Manual No. 016-0171-496 Rev. C...
  • Page 76 Chapter 9 SCS 440 with AccuFlow™ System (2 Valve, Single Section Tool Bar - D/N 054-2800-018) FIGURE 9. AccuFlow™ and AccuFlow HP™ Installation & Operation Manual...
  • Page 77 System Diagrams SCS 450 with AccuFlow™ System (2 Valve, Multi-Section Tool Bar - D/N 054-2800-003) FIGURE 10. Manual No. 016-0171-496 Rev. C...

  • Page 78: Accuflow Hp™ Diagrams

    Chapter 9 AccuFlow HP™ Diagrams Generation 2 CAN AccuFlow HP™ Cable Connections FIGURE 11. (3 Section Tool Bar - D/N 054-5300-001) AccuFlow™ and AccuFlow HP™ Installation & Operation Manual...
  • Page 79 System Diagrams Generation 2 CAN AccuFlow HP™ Cable Connections FIGURE 12. (6 Section Tool Bar - D/N 054-5300-002) Manual No. 016-0171-496 Rev. C...
  • Page 80 Chapter 9 Envizio Pro/Switch Pro with AccuFlow HP System and Injection (D/N 054-2040-029) FIGURE 13. AccuFlow™ and AccuFlow HP™ Installation & Operation Manual...
  • Page 81 System Diagrams SCS 4400 with AccuFlow HP System and Injection (D/N 054-2840-015) FIGURE 14. Manual No. 016-0171-496 Rev. C...
  • Page 82 Chapter 9 SCS 4400 with AccuFlow HP System (D/N 054-2840-016) FIGURE 15. AccuFlow™ and AccuFlow HP™ Installation & Operation Manual...

  • Page 83: Testing Speed And Flow Meter Extension Cables

    T esting Speed and CHAPTER C h a p t e r 1 0 Flow Meter Extension Cables Speed Sensor Extension Cable Disconnect the extension cable from the speed sensor assembly cable. Hold the extension cable connector so that the keyway is pointing in the 12 o’clock position as shown below. Speed Sensor Extension Cable Connector Pins FIGURE 1.

  • Page 84: Flow Meter Extension Cable

    Verify the pin connection and voltage from the previous chart. If all of the cables test good, replace the rate sensor. Note: After testing is complete, re-enter the correct cal values before starting an application. AccuFlow™ and AccuFlow HP™ Installation & Operation Manual...
  • Page 85 Assembling the AccuFlow System 12 Emergency Shut-off Rope 16, 35 Vapor and Applicator Line Installation 17, 36 Mounting the AccuFlow HP System 32 Mounting the AccuFlow System 15 Mounting the Manifold 20, 40 Multi-Section Control 21 Vapor and Applicator Lines 17, 36...
  • Page 86 Index AccuFlow™ and AccuFlow HP™ Installation & Operation Manual...
  • Page 87 Bring the defective part and proof of purchase to your Raven dealer. If the dealer approves the warranty claim, the dealer will process the claim and send it to Raven Industries for final approval. The freight cost to Raven Industries will be the customer’s responsibility. The Return...
  • Page 88 How Can I Get Service? Bring the defective part and proof of purchase to your Raven dealer. If the dealer approves the warranty claim, the dealer will process the claim and send it to Raven Industries for final approval.
  • Page 90 Fax: 605-331-0426 www.ravenprecision.com www.ravenhelp.com Notice: This document and the information provided are the property of Raven Industries, Inc. and may only be used as authorized by Raven Industries, Inc. All rights reserved under copyright laws. ©Raven Industries, Inc. 2011, 2012...

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