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flamco Midi 125D - User Manual

flamco Midi 125D
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www.flamcogroup.com
© 2014 Flamco group. All rights reserved.
We reserve the right to change designs and technical specifications of our products.
Rev 8.1 Aug-15 Page 1 / 44
Flexfiller Digital Pressurisation Equipment
Flexfiller Models (125D, 225D, 150D, 250D, 280D)
Midi Models (125D, 225D, 150D, 250D)
Mini Models (130D, 230D)
Operation & Maintenance
Manual
Rev 8.3

Table of Contents

Questions and Answers

  • G
    Gregory CollinsAug 20, 2025
    What to do if LOW H20 fault is displayed on flamco Midi 125D?
    • L
      Laura SalinasAug 20, 2025
      If the LOW H20 fault is displayed on your Flamco Portable Generator, here are a few things you can check: * Make sure the mains water supply to the unit is turned on. * The fault will clear once the break tank has been re-filled if the mains pressure is poor. * Remove any non-standard electrical connections from terminals 19 & 20. * Consider replacing the low water float switch, or the digital controller if they have failed.
  • S
    Sherry WilsonAug 22, 2025
    Why pressure reading does not match actual system pressure on flamco Midi 125D?
    • A
      alexander39Aug 22, 2025
      If the pressure reading on your Flamco Portable Generator doesn't match the actual system pressure, there might be a few reasons: * Ensure the internal isolation valve within the unit is open. * Review the SENSOR TYPE setting. * Remove any non-return valve installed between the unit and the system. * The pressure sensor might have failed and needs replacement.
  • A
    anthonybutlerAug 25, 2025
    What causes HIGH PRESSURE fault on flamco Midi 125D Portable Generator?
    • H
      Heather BaldwinAug 25, 2025
      If your Flamco Portable Generator displays a HIGH PRESSURE fault, it could be due to a few reasons: * Check the expansion vessel pre-charge and re-charge if necessary. * Review the expansion vessel selection, as it might be undersized. * Review the system specifications, as the HIGH PRESSURE set point might be too low.
  • P
    Paula MasonAug 26, 2025
    How to fix pump that runs but does not make up pressure in Flamco Portable Generator?
    • J
      Jennifer CunninghamAug 26, 2025
      If your Flamco Portable Generator's pump runs but doesn't build up pressure, it might be air-locked. Try bleeding the pump to resolve this.
  • S
    snelsonAug 27, 2025
    What to do if system pressure has risen above the HIGH PRESSURE set point in flamco Midi 125D Portable Generator?
    • A
      acevedowilliamAug 27, 2025
      If the system pressure of your Flamco Portable Generator has risen above the HIGH PRESSURE set point, decrease the system pressure using a suitable drain point.
  • S
    Sharon LoganAug 29, 2025
    What causes HIGH H20 fault on flamco Midi 125D Portable Generator?
    • T
      Timothy WilliamsAug 29, 2025
      If your Flamco Portable Generator displays a HIGH H20 fault, it could be due to: * A non-standard electrical connection into terminals 21 & 22. Remove any such connections. * A failure of the digital controller, which would require replacement.
  • S
    Steven WilliamsAug 31, 2025
    What to do if ERROR 1 fault is displayed on Flamco Portable Generator?
    • N
      Nathan ScottAug 31, 2025
      If you see 'ERROR 1 fault' displayed on your Flamco Portable Generator, check the SENSOR TYPE option and review its setting. Also, the pressure sensor might have failed and require replacement.
  • N
    Nicholas JohnsonSep 2, 2025
    Why is the pump persistently becoming air-locked in Flamco Portable Generator?
    • V
      Victor GuerreroSep 2, 2025
      If your Flamco Portable Generator's pump is persistently becoming air-locked, check the float valve flow restrictor selection, especially if you have mini and midi units.
  • B
    Breanna HansonSep 4, 2025
    Why is the break tank overfilling in flamco Midi 125D?
    • W
      William AlexanderSep 4, 2025
      If the break tank in your Flamco Portable Generator is overfilling and discharging water, consider the following: * Check the float valve flow restrictor selection (mini and midi units only). * Set the float valve to its lowest possible position. * The float valve might have failed and needs replacement. * A pump non-return valve might have failed and needs replacement.
  • J
    Jessica GarzaSep 6, 2025
    Why is the pump repeatedly running in short bursts in flamco Midi 125D Portable Generator?
    • W
      wjordanSep 6, 2025
      If your Flamco Portable Generator's pump is repeatedly running in short bursts, it could be due to: * The internal isolation valve within the unit being partially closed. Fully open it. * Too much restriction in the connecting pipe work. Increase bore, reduce bends, or reduce length. * A pump non-return valve has failed, replace it. * The expansion vessel has failed or lost its pre-charge, check and re-charge if necessary. * The unit's connection point is too far from the expansion vessel. Move them closer.

Summary

Commissioning Record

Installation

Pipe Connections

Details the requirements and best practices for making pipe connections.

Flow Restrictors

Flexfiller Clearance and Connection Requirements

Midi Clearance and Connection Requirements

Mini Clearance and Connection Requirements

Electrical Power Supply

Commissioning

Pre-Commissioning Checklist

Lists critical conditions that must be met before starting the commissioning process.

Controller Programming

Program List

Hydraulic Commissioning

Float Valve Setting

Instructions for setting the break tank float valve to its lowest position.

Bleeding Pumps

Procedure for bleeding air from the pumps on Flexfiller and Midi units.

Forcing Pumps to Run

Initial Start-up

Testing Unit Operation

Operation

Fault Codes

Lists and explains all fault codes that may appear on the digital controller.

Shutdown Procedure

Start-up Procedure

Maintenance

Visual Inspection

Describes the checks to perform during a visual inspection for potential faults.

Test Unit Operation

Detailed Maintenance Checks

Expansion Vessel Pre-Charge

Wiring Diagram

Wiring Location List

Troubleshooting

Low Pressure Faults

Troubleshooting low pressure fault and pump inactivity.

High Pressure Faults

Troubleshooting high pressure fault.

Flood Limit Faults

Troubleshooting Pump & Controller Issues

Pump Failures and Settings

Resolving pump failures, incorrect type settings, and isolation issues.

Water Level and Pressure Faults

Pump Performance and Air-Locking

Troubleshooting Unit Behavior

Break Tank and Pump Behavior

Controller and Power Issues

Warranty Information

flamco Midi 125D Specifications

General IconGeneral
Voltage230 V
Frequency50 Hz
FuelPetrol
Rated Power1000 W
Maximum Power1200 W
Engine Type4-stroke
PhaseSingle Phase
Starting SystemRecoil

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