Table of Contents
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PRODUCT DESCRIPTION
Electric motor driven centrifugal pump complete with an automatic control system,
consisting of pressure transducer pressure vessel and electronic control.
APPLICATION
The Mainsboost VariQ is designed for pressure boosting applications in vented stored,
cold, clean water systems, where under gravity, no flow is available and can be used
in systems where either a positive or negative head exists. Inlet pressures to the pump
must not exceed the values given in the technical specifications.
STORAGE
If this product is not to be installed immediately on receipt, ensure that it is stored in a
dry, frost and vibration free location in its original packaging.
CONTENTS
Page
Checklist .................................................................................................................. 4
Important Facts - read before commencing installation ................................... 6
Location - General ................................................................................................... 7
Location - Cold Water Installation ............................................................................ 8
Location - Suction Lift Installation ........................................................................... 9
Pump Connections .................................................................................................. 11
Electrical Installation .............................................................................................. 12
Commissioning ....................................................................................................... 14
Maintenance ........................................................................................................... 17
Technical Specification .......................................................................................... 18
Trouble Shooting ................................................................................................... 20
Warranty ............................................................................................................... 23
Cont ...
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Do you have a question about the MAINSBOOST VariQ and is the answer not in the manual?
Questions and answers
The pump is making a loud humming noise probably best described as vibration noise. The water pressure in the house is still normal. I tried resetting the pump but the noise came straight back instantly.
A loud humming or vibration noise in a Stuart Turner MAINSBOOST VariQ pump could be caused by the pump being mounted in a way that amplifies noise through loose panels or pipework. Care must be taken during installation to ensure secure mounting to avoid such noise issues.
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is it normal that variq pump in my home goes off frequently if no taps are on please
No, it is not normal. If the Stuart Turner MAINSBOOST VariQ pump turns off frequently when no taps are on, it may indicate a leak in the system, debris under the non-return valve sealing face, or improper pipework installation. Running the pump at full flow to flush debris or checking and replacing the non-return valve may help resolve the issue.
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Pump keeps making knocking noise approx every 30 sec when not in use.