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Armstrong 3760 ProDoseVDG Series Installation And Operating Instructions Manual

Combined pressurisation, degassing and dosing equipment
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Installation and
operating
instructions
3760 ProDoseVDG Range
Pressurisation Equipment
Combined Pressurisation,
Degassing and Dosing
Equipment
File No: 37.203
Date: july 10, 2023
Supersedes: new
Date: new

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Summary of Contents for Armstrong 3760 ProDoseVDG Series

  • Page 1 Installation and operating instructions 3760 ProDoseVDG Range Pressurisation Equipment Combined Pressurisation, Degassing and Dosing Equipment File No: 37.203 Date: july 10, 2023 Supersedes: new Date: new...

  • Page 3: Table Of Contents

    contents Pressures in A Sealed System Operation About this Manual Fault Codes Conventions used in this Manual Shutdown procedure Typography Start-up Procedure Equipment Overview Balancing Valve Setting Principal of Operation Maintenance Installation Visual Inspection Pipe Connections Interrogate Controller Typical Installation Diagram Test Unit Operation ProDoseVDG Clearance and Connection Check Float Valve Operation...

  • Page 4: Pressures In A Sealed System

    i nstall at ion & ProDoseVDG 2MP With o perat ing in str uct ion s Degassing and Dosing Equipment Pressures in A Sealed System Pressures in A Sealed System Below is an overview of how the settings on a pressurisation unit must be considered for normal topup operation.
  • Page 5 ProDoseVDG 2MP With i nsta l l a t i o n & Degassing and Dosing Equipment o p er at i n g i n str u cti o n s When the equipment contains a degassing element, the following pressures must also be taken into account. When the equipment contains a degassing element, the following pressures must also be taken into account.

  • Page 6: About This Manual

    install ation & ProDoseVDG 2MP With operat ing instructions Degassing and Dosing Equipment About this Manual About this Manual This Operation and Maintenance Manual contains all the necessary information to install, commission, operate and This Operation and Maintenance Manual contains all the necessary information to install, commission, operate maintain the Flamco Prestige equipment.

  • Page 7: Equipment Overview

    ProDoseVDG 2MP With i nsta l l a t i o n & Degassing and Dosing Equipment o p er at i n g i n str u cti o n s Equipment Overview Equipment Overview Equipment Overview The function of this pressurisation unit is to provide a means of automated water top-up to sealed heating and cooling systems.
  • Page 8 i nstall at ion & ProDoseVDG 2MP With o perat ing in str uct ion s Degassing and Dosing Equipment The pressure reducing valve (17) is used to limit the water held within the vacuum cylinder to approximately 1.2 bar. This is seen as the first pressure step.

  • Page 9: Installation

    installed in a frost-free environment, away from precipitation and water sprays/jets. If there is a Installation risk of flooding, the unit must be installed on a raised plinth. This equipment is not designed to be installed in an outdoor environment. The unit must be ProDoseVDG 2MP With i nsta l l a t i o n &...

  • Page 10: Typical Installation Diagram

    insta ll at ion & ProDoseVDG 2MP With o pera t in g in str ucti on s Degassing and Dosing Equipment Typical Installation Diagram Typical Installation Diagram Top fill vessels REMEMBER TO FIT AN INLINE STRAINER VALVE BEFORE THE UNIT TO ELIMINATE ANY DEBRIS GOING INTO THE FLEXFILLER PLUS UNIT.
  • Page 11 ProDoseVDG 2MP With i nsta l l a t i o n & Degassing and Dosing Equipment o p er at i n g i n str u cti o n s Bottom fill vessels Automatic Air Vent (AAV) Mains Water Feed = Filling Loop (Optional) Isolation Expansion Vessel...

  • Page 12: Prodosevdg Clearance And Connection Requirements

    i nstall at ion & ProDoseVDG 2MP With o perat ing in str uct ion s Degassing and Dosing Equipment Pro PDD Clearance and Connection Requirements ProDoseVDG Clearance and Connection Requirements Connection Size Notes An isolation valve must be installed on the mains water feed Mains Water Feed ½”...

  • Page 13: Electrical Power Supply

    ProDoseVDG 2MP With i nsta l l a t i o n & Degassing and Dosing Equipment o p er at i n g i n str u cti o n s Electrical Power Supply Electrical Power Supply Electrical Power Supply This equipment must be electrically isolated before removing the covers.

  • Page 14: Micro Controller

    i nstall at ion & ProDoseVDG 2MP With o perat ing in str uct ion s Degassing and Dosing Equipment Micro Controller Micro Controller Micro Controller Fault contacts Fault contacts Fault contacts There are 6 volt free fault contacts which can be used for connection to a BMS system, located on terminals 1- There are 6 volt free fault contacts which can be used for connection to a BMS system, located on terminals 1- 12 on the digital controller.

  • Page 15: Commissioning

    Any damage or loss incurred through incorrect commissioning by an unapproved engineer will not It is highly recommended to have this equipment commissioned by an Armstrong approved engineer. Any It is highly recommended to have this equipment commissioned by a Flamco approved engineer.

  • Page 16: Controller Overview

    All necessary pipe/electrical connections have been made to a satisfactory standard i nstall at ion & ProDoseVDG 2MP With The temperature and pressure at the point of connection are within the operating limits of the o perat ing in str uct ion s Degassing and Dosing Equipment pressurisation unit.

  • Page 17: Controller Programming

    ProDoseVDG 2MP With i nsta l l a t i o n & Degassing and Dosing Equipment o p er at i n g i n str u cti o n s Controller Programming Controller Programming Controller Programming Do not alter any settings without first understanding the implications of doing so. Incorrect settings Do not alter any settings without first understanding the implications of doing so.

  • Page 18: Program Parameter List

    i nstall at ion & ProDoseVDG 2MP With o perat ing in str uct ion s Degassing and Dosing Equipment Program Parameter List Program Parameter List The table below gives details of all menu items, in the order that they will appear: The table below gives details of all menu items, in the order that they will appear: PR No Customer Code - 2601...
  • Page 19 ProDoseVDG 2MP With i nsta l l a t i o n & Degassing and Dosing Equipment o p er at i n g i n str u cti o n s This menu is for setup combine unit in order the menu will appear: This menu is for setup combine unit in order the menu will appear: PR No Engineers Code - 4706...
  • Page 20 install ation & ProDoseVDG 2MP With operat ing instructions Degassing and Dosing Equipment PR No Engineers Code - 4706 Notes Default Unit Pressure Alarm Auto Toggles High/Low Alarm from being Reset automatic reset to manual reset/critical stop Toggles all VFC alarms to be energised, All VFC Fail Safe normally closed.

  • Page 21: Pr No (36) Purge Seconds Reference Times Options

    ProDoseVDG 2MP With i nsta l l a t i o n & Degassing and Dosing Equipment o p er at i n g i n str u cti o n s PR No Engineers Code - 4706 Notes Default Unit Wait time in between degassing PR No...

  • Page 22: Hydraulic Commissioning

    insta ll at ion & ProDoseVDG 2MP With o pera t in g in str ucti on s Degassing and Dosing Equipment Hydraulic Commissioning Hydraulic Commissioning Hydraulic Commissioning Hydraulic Commissioning Hydraulic Commissioning 1. Float valve setting 1. Float valve setting 1.
  • Page 23 ProDoseVDG 2MP With i nsta l l a t i o n & Degassing and Dosing Equipment o p er at i n g i n str u cti o n s Attach a length of hose to the drain and open the valve to the system. Remember to close valve once this is completed Attach a length of hose to the drain and open the valve to the system.

  • Page 24: Forcing Pumps To Run

    insta ll at ion & ProDoseVDG 2MP With o pera t in g in str ucti on s Degassing and Dosing Equipment If the pump has a plastic bleed screw like the one shown below, do not use excessive force or attempt to use any tools to turn it as this may irreparably damage the pump casing.

  • Page 25: Venting The Vacuum Cylinder

    ProDoseVDG 2MP With i nsta l l a t i o n & Degassing and Dosing Equipment o p er at i n g i n str u cti o n s 4. Venting the vacuum cylinder 4. Venting the vacuum cylinder 4.

  • Page 26: Testing

    insta ll at ion & ProDoseVDG 2MP With o pera t in g in str ucti on s Degassing and Dosing Equipment 5. Testing 5. Testing To test the operation of the pressurisation unit while connected to the system, the system pressure must be lowered slowly to simulate a minor leak.

  • Page 27: Operation

    ProDoseVDG 2MP With i nsta l l a t i o n & Degassing and Dosing Equipment o p er at i n g i n str u cti o n s Operation Operation Once commissioned, the pressurisation unit should operate without any user intervention. Once commissioned, the pressurisation unit should operate without any user intervention.

  • Page 28: Shutdown Procedure

    insta ll at ion & ProDoseVDG 2MP With o pera t in g in str ucti on s Degassing and Dosing Equipment Description Auto/Manual Reset Fault code Description Auto/Manual Reset Fault code Auto Reset Low Additive Additive tank is low Auto Reset Low Additive Description...

  • Page 29: Start-Up Procedure

    ProDoseVDG 2MP With i nsta l l a t i o n & Degassing and Dosing Equipment o p er at i n g i n str u cti o n s Start-up Procedure Start-up Procedure Attention – This procedure is for restarting the unit after being shutdown (as described above). For Attention –...

  • Page 30: Balancing Valve Setting 3

    i nstall at ion & ProDoseVDG 2MP With o perat ing in str uct ion s Degassing and Dosing Equipment Balancing Valve Setting The following table shows the valve settings required to achieve a given Additive concentration. e following table shows the valve settings required to achieve a given Additive concentration The following table shows the valve settings required to achieve a given Additive concentration The following table shows the valve settings required to achieve a given Additive concentration Additive %...

  • Page 31: Maintenance

    ProDoseVDG 2MP With i nsta l l a t i o n & Degassing and Dosing Equipment o p er at i n g i n str u cti o n s Maintenance Maintenance Due to variations in operating conditions, and the varying loads placed on pressurisation units, it is not feasible Due to variations in operating conditions, and the varying loads placed on pressurisation units, it is not feasible to to provide accurate predictions of component lifespan.

  • Page 32: Check Float Valve Operation

    i nstall at ion & ProDoseVDG 2MP With o perat ing in str uct ion s Degassing and Dosing Equipment Check Float Valve Operation To test the operation of the break tank float valve, first ensure that the break tank overflow has a suitable path to drain. Check Float Valve Operation Gently push down on the arm of the float valve until it starts to discharge water, then release the float valve arm.

  • Page 33: Check Expansion Vessel Pre-Charge

    ProDoseVDG 2MP With i nsta l l a t i o n & Degassing and Dosing Equipment o p er at i n g i n str u cti o n s Check Expansion Vessel Pre-Charge Check Expansion Vessel Pre-Charge Many of the problems experienced with pressurisation equipment can be traced back to the expansion vessel.

  • Page 34: Wiring

    i nstall at ion & ProDoseVDG 2MP With o perat ing in str uct ion s Degassing and Dosing Equipment Wiring Wiring © 2018 Flamco group. All rights reserved. We reserve the right to change designs and technical specifications of our products Rev 1.0 Aug-18 Page 35 / 48...

  • Page 35: Troubleshooting 3

    Review unit selection Bleed the pump FLOOD LIMIT is displayed pumping water The FLOOD LIMIT time is too short. Consult Armstrong The unit is undersized for the system Review unit selection The FLOOD LIMIT time is too short. Consult Armstrong ©...
  • Page 36 i nstall at ion & ProDoseVDG 2MP With o perat ing in str uct ion s Degassing and Dosing Equipment Symptom Problem Solution The PUMP TYPE option is set Review PUMP TYPE setting Pump1 and/or Pump2 Failure is incorrectly. displayed The relevant pump has failed Replace pump Pump2 Failure is displayed but...
  • Page 37 ProDoseVDG 2MP With i nsta l l a t i o n & Degassing and Dosing Equipment o p er at i n g i n str u cti o n s Symptom Problem Solution The wrong/no flow restrictor is installed Check float valve flow restrictor in the float valve (mini and midi units selection (Midi and Pro units...
  • Page 38 i nstall at ion & ProDoseVDG 2MP With o perat ing in str uct ion s Degassing and Dosing Equipment Symptom Problem Solution The safety solenoid valve will automatically The internal pressure within the close and the system will attempt to self- vacuum cylinder has reached the reset during the next degassing cycle.

  • Page 39: Warranty Details

    Warranty Details Warranty - What Is Covered? The Armstrong warranty on equipment supplied to distribution and OEM covers manufacturing defects, under our standard terms and conditions of sale. If the unit is identified with a manufacturing defect then no charge is made for correcting the defect.

  • Page 40: Statement Of Compliance 4

    & ProDoseVDG 2MP With o perat ing in str uct ion s Degassing and Dosing Equipment Statement of compliance Supplier: Armstrong Fluid Technology 1 Wolverton Street Manchester M11 2ET United Kingdom Product: 3760 Pressurisation Equipment Description: Sealed system pressurisation equipment, dosing equipment and combinations thereof.

  • Page 41: Notes

    ProDoseVDG 2MP With i nsta l l a t i o n & Degassing and Dosing Equipment o p er at i n g i n str u cti o n s Notes...
  • Page 42 i nstall at ion & ProDoseVDG 2MP With o perat ing in str uct ion s Degassing and Dosing Equipment Notes...
  • Page 43 ProDoseVDG 2MP With i nsta l l a t i o n & Degassing and Dosing Equipment o p er at i n g i n str u cti o n s Notes...
  • Page 44 t o r o n t o 23 bertrand avenue, toronto, ontario, canada, m1l 2p3 For further information on the 3760 Pressurisation unit range +1 416 755 2291 or to download individual product data sheets please visit: b u f fa lo www.armstrongfluidtechnology.com/en-gb/ 93 east avenue, north products-and-services/heating-and-cooling/...

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