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Stuart Turner Monsoon U2.0 bar Twin - User Manual

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MONSOON
Installation, Operation & Maintenance
Instructions
Please leave this instruction booklet with the home owner as it contains important
warranty, maintenance and safety information.
Read this manual carefully before commencing installation.
This manual covers the following products:
Monsoon U1.5 bar Twin
Monsoon U4.0 bar Twin
Pt. No. 46505 Pt. No. 46505 ROI
Pt. No. 46411 Pt No. 46411 ROI
Pt. No. 46505 EXP
Pt. No. 46411 EXP
Monsoon U2.0 bar Twin
Monsoon U4.5 bar Twin
Pt. No. 46480 Pt. No. 46480 ROI
Pt. No. 46412 Pt No. 46412 ROI
Pt. No. 46480 EXP
Pt. No. 46412 EXP
Monsoon U3.0 bar Twin
Pt. No. 46410 Pt. No. 46410 ROI
Pt. No. 46410 EXP
FOR POSITIVE OR NEGATIVE HEAD APPLICATIONS
Please note images are representative only and may not portray
your model

Table of Contents

Other manuals for Stuart Turner Monsoon U2.0 bar Twin

Preview: Installation Instructions
Installation Instructions24 pages

Questions and Answers

  • P
    pwalshAug 19, 2025
    Why is the flow reduced or intermittent in my Stuart Turner Monsoon U2.0 bar Twin?
    • G
      Gina FletcherAug 19, 2025
      If your Stuart Turner Water Pump is delivering reduced or intermittent flow, several factors could be the cause. Start by ensuring the installation complies with the provided instructions, paying special attention to the anti-aeration flange. Verify the pipe sizes are correct. Clean the inlet filters. Ensure that the hot water temperature isn't set too high by reducing the cylinder thermostat setting to a maximum of 60 degrees Celsius. Finally, check the shower head spray plate for blockages and clean it according to the manufacturer's instructions.
  • R
    Robert CannonAug 22, 2025
    How to troubleshoot a Stuart Turner Monsoon U2.0 bar Twin that will not start?
    • Q
      qdavisAug 22, 2025
      If your Stuart Turner Water Pump won't start, begin by checking the electrical supply to ensure it's functioning correctly. If the motor 'buzzes', immediately switch off the power and contact Stuart Turner. A damaged pressure switch could also be the problem; turn off the power, release system water pressure, and then turn the power back on to see if the pump starts. If it doesn't, contact Stuart Turner. Lastly, make sure the recommended static inlet/outlet heads aren't exceeded by repositioning the pump.
  • A
    aliciajonesAug 26, 2025
    What to do if Stuart Turner Monsoon U2.0 bar Twin Water Pump runs on when all terminal outlets are closed?
    • H
      harrybestAug 26, 2025
      If your Stuart Turner Water Pump continues to run even when all outlets are closed, there could be several reasons. First, check for any leaks in the system, including tap washers, toilet valve washers, and pipe joints. Ensure the reed clamp is correctly fitted in the location groove. If the pump still runs, it indicates a closed circuit in either the flow switch reed, pressure switch, or PCB in the terminal box; these should be checked electrically. You can isolate the pump electrically and hydraulically and remove the brass housing that contains the float to check the float for free movement.
  • J
    Justin JohnstonAug 28, 2025
    Why does my Stuart Turner Monsoon U2.0 bar Twin Water Pump start when outlets are off, or cycle (hunt) on/off frequently?
    • A
      aleeAug 28, 2025
      If your Stuart Turner Water Pump starts when outlets are off or cycles frequently, it could be due to a leak in the system. Check tap washers, toilet valve washers, and pipe joints for leaks. Additionally, low pre-charge pressure in the pressure vessel could be the cause. Check the pre-charge pressure in the pressure vessel. Debris under the non-return valve sealing face may also cause this issue. Try running the pump at full flow to flush away debris, or remove, clean, or replace the non-return valve.
  • T
    tiffanygrimesAug 31, 2025
    How to fix Stuart Turner Water Pump that will not start?
    • C
      Cheryl CastilloAug 31, 2025
      If your Stuart Turner Water Pump won't start, begin by checking the electrical supply, ensuring all wiring connections are secure and all switches are 'on'. Inspect the fuse and circuit breaker. If these are fine, turn off the power, release system water pressure, and then turn the power back on. If the pump still doesn't start, it could be due to a faulty pressure switch, reed switch, or PCB. Also, the internal motor thermotrip may have activated; in this case, wait for it to auto-reset and verify that the duty point and run time are within specification. If NOT refer to circuit test in Fig. 17 to confirm PCB operating correctly. Also re-position pump if needed.
  • V
    vparkerSep 3, 2025
    What to do if there is no hot water with my Stuart Turner Monsoon U2.0 bar Twin?
    • J
      James MitchellSep 3, 2025
      If you have no hot water when using a Stuart Turner Water Pump, several factors could be responsible. Start by checking if the hot water pump has an air lock and vent it to remove any trapped air. Ensure the heat source, like the boiler, is switched on. Verify that the hot water cylinder contains hot water. Lastly, a faulty thermostatic mixer valve might be the cause; in this case, consult the manufacturer's instructions for the valve.
  • A
    Andrew SanchezSep 6, 2025
    What causes flexible hose leaks in a Stuart Turner Monsoon U2.0 bar Twin Water Pump?
    • K
      Kyle ThomasSep 6, 2025
      To address flexible hose leaks in your Stuart Turner Water Pump, first, check that the hose is firmly pushed onto the pump's inlet/outlet connections and pipework to ensure correct fitting. Also, inspect the 'O'-rings for damage and ensure copper pipe ends are cleanly cut and deburred.
  • D
    davisshannonSep 9, 2025
    Why is there no hot water with my Stuart Turner Water Pump?
    • K
      Karen JeffersonSep 9, 2025
      If you have no hot water when using your Stuart Turner Water Pump, it could be due to several reasons. The water feed might be air-locked, so vent the hot water pump to remove any air. Check the cold feed to the hot water cylinder, ensuring the water level in the cold water tank is adequate and that all stopcocks and isolating valves are open. Also, make sure the boiler is switched 'on', check the cylinder thermostat and immersion heater, and verify that the cylinder contains hot water and that the tank volume is adequate. Consult makers instructions.
  • J
    John ArnoldSep 12, 2025
    What causes reduced flow/performance in a Stuart Turner Monsoon U2.0 bar Twin?
    • A
      Angela BondSep 12, 2025
      Reduced flow or performance in your Stuart Turner Water Pump can be attributed to a few common issues. Check for blocked inlet strainers and clean them. Also, inspect the shower head spray plate for blockages and clean it. Blocked pipework or the pump itself can also restrict flow. Isolate the pump electrically and hydraulically, then locate and remove any blockages.
  • J
    Justin UnderwoodNov 15, 2025
    Why does my Stuart Turner Monsoon U2.0 bar Twin Water Pump keep running or cycling on and off?
    • Z
      Zachary SmithNov 15, 2025
      If your Stuart Turner Water Pump runs continuously even when outlets are closed, or if it frequently cycles on and off, the issue could stem from several causes. First, check for leaks in your system by inspecting tap washers, toilet valve washers, and pipe joints. If the pump persists in running, it may indicate a closed circuit in the flow switch reed, pressure switch, or PCB within the terminal box, in which case you should contact Stuart Turner. Another potential cause is a jammed flow switch, which can be resolved by removing outlet hoses and ensuring the flow switch is in its lowest position. Additionally, inspect the pressure in the pressure vessel. Debris under the non-return valve sealing face could also be the culprit; try running the pump at full flow to flush away any debris, o...

Summary

Safety Warnings and Precautions

Pre-Installation Checks

Important Installation Facts and Guidelines

Pump Location Guidelines

General Location Advice

General advice on pump placement including access, protection, ventilation, safety, water retention, pressure limits, and noise reduction.

Preferred Pump Location

Site pump close to HOT WATER cylinder, below take-off, considering inlet/outlet heads and pressure limits.

Water Connections

Details for cold and hot water supply connections, ensuring air-free feed and correct pipework sizes.

Pump Connections and Hoses

Electrical Installation and Wiring

Regulations, Safety & Adjacent Pipes

Comply with electrical regulations, use qualified persons, employ RCDs, isolate power, and earth adjacent pipes.

Wiring of Connection Unit and Fuses

Instructions for wiring connection units, identifying wire colours, and selecting correct fuse sizes for different models.

Wiring Diagram

Commissioning and Starting the Pump

System Flushing & Priming

Steps for flushing the system, ensuring water supply, and priming the pump correctly before initial operation.

Pump Starting Procedure

How to start the pump, purge air from outlets, and verify correct operation by checking tap control.

Pump Maintenance

Inlet Strainer Maintenance

Pressure Vessel Maintenance

Technical Specifications

Troubleshooting Guide

General Fault Finding

Common symptoms like pump not starting, intermittent flow, or no hot water with probable causes and recommended actions.

Dry Run Protection & Logic Sequence

Fault Finding - Power Indicator

Monsoon Pump 5-Year Warranty

Warranty Details and Claims

Details of the 5-year warranty, coverage, exclusions, claim process, and contact information.

Stuart Turner Monsoon U2.0 bar Twin Specifications

General IconGeneral
Bar Rating2.0 bar
Voltage230 V
Number of Outlets2
Weight5.8kg
Maximum Pressure2.0 bar
Head Height (Max)20 m
Motor Power220 W
Power220W
Dimensions162mm (H) x 212mm (W) x 160mm (D)
Power Supply230V
TypeTwin
Power Consumption220 W

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