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General Data

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This article provides an overview and basic information about Max-E Boost.

Delivery and Handling

The Max-E Boost set is supplied from the factory mounted on a wooden pallet suitable for handling by forklift equipment. The weight and size of the Max-E Boost may require the use of proprietary lifting equipment in order to be handled safely. During installation in the system pipework ensure that the recommended procedures for lifting pallet mounted equipment are observed. Do not lift or manoeuvre the Max-E Boost by the pipe work or the pressure vessel. 

Inspection

The Max-E Boost should be unpacked and inspected. Any damage must be reported to the supplier within seven days in writing.

It is important that these installation and operating instructions are studied carefully before any installation takes place. The installation and operation should also be in accordance with local regulations and accepted codes of practice.

Under no circumstances should the unit be operated until correctly installed in the system pipework and ensure that the terminal box cover, motor fan cover and coupling guards are secured in their appropriate positions. 

Warranty

  1. The Grundfos warranty covers all defects within the Max-E Boost originating from faulty workmanship and/or materials for a period of two years from the date of installation or thirty months from the date of despatch from the factory, whichever is the shorter. The warranty covers the replacement of any faulty parts and our labour cost to replace the faulty parts. It does not cover the cost of removing, returning and refitting the booster set or any secondary losses arising from the failure.
  2. Under no circumstances should faulty equipment be dismantled. Failure to comply with this instruction could invalidate the warranty.
  3. Defects arising from incorrect installation, water containing debris, or harmful chemicals, inadequate electrical protection, faulty ancillary equipment, lightning or other circumstances beyond our control, are not covered by the warranty. 

Site Storage

It is strongly recommended once the Max-E Boost has been delivered to site, that it is placed immediately into a dust, moisture and frost-free area which has been secured to prevent unauthorised interference. If this is not possible then the unit should be stored in an area which is as near as possible to the ideal storage conditions as described above. 

Applications

The Max-E Boost has been designed to be compact, reliable, and simple to install, and to provide many years of efficient and effective service. The main applications for the Grundfos Max-E Boost are:

  • Domestic pressure boosting
  • Light Commercial pressure boosting 

The Max-E Boost must be used in conjunction with a cold water storage tank, and is not for direct connection to the cold water mains supply due to the Water Byelaw Regulations. 

Maximum Operating Conditions

Liquid temperature range: +3°C to +90°C 
Ambient temperature: up to +40°C 
Relative humidity: up to 95 % non condensing 
Maximum pressures: For CRIE 5-8 pump model
Inlet pressure: 10 bar
Casing pressure rating: 16 bar,
Pump generated pressure: 5.3 bar
Maximum discharge (setpoint) setting: 4.5 bar 

Noise Level

The noise level of the Max-E Boost is 65 dB(A) at full speed.

WRAS Approval Reference

The CRIE booster pump and GT-U-12-V pressure vessel are approved for use with potable water under the WRAS scheme.