A Water Chiller is used to exchange heat from water to a refrigerant in a closed loop system. All waste heat is pumped in to the atmosphere after the chilled water is sent to its location.

A water chiller is used in air conditioning and as part of our air conditioning installations.  Chilled water us used in the air conditioning unit to cool air in buildings and is ideal for complete control of individual rooms i.e. offices and server rooms.

On completion of an air conditioning installation.  Morreston will run a series of tests to check that the new system is running efficiently and problem free.

Our installers will check the ductwork installation or modification and any wiring in connection with this

All of the regular checks will be made including: checking the air flow around the system, all brackets and fixings are completely secure and if the thermostat is working properly

Once all the checks are made and passed the air conditioning unit can be started up and checked that it works correctly and at the right temperature.

Well done to all the Morreston field engineers and Faye Stratton in the office who have completed the Emergency first aid at work qualification.

We have recently completed the full refurbishment of 2 packaged water chillers at the North Terminal and Airfield at Gatwick Airport.


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Morreston have a dedicated team of engineers with many years of experience as air handling unit installers and air conditioning installers and have created a specialised service aimed at the refurbishment of all central station air handling equipment and air conditioning installations.

This service starts with a free on site survey of the existing installation and the production of a detailed report of defects and works required to bring the equipment back to a good level of operation to give many more years of beneficial service to the end user. This service can be followed up by an on- going maintenance package to ensure the refurbished units remain in good working order.

The range of services offered is diverse and typically covers the following main areas:-

  • Thorough internal/external cleaning of sections and components
  • Painting options
  • weatherproofing
  • New unit paneling and access door furniture
  • New heat exchangers
  • Fan replacements
  • Motor replacements
  • Filter bank refurbishment or replacement
  • Damper refurbishment or replacement
  • Controls co-ordination
  • New drain pans/eliminators
  • Replacement sections if necessary
  • Ductwork Modification and Ductwork Installation
  • Air Handling Units

Should the unit concerned be past the point of repair we offer a full replacement service where we supply a bespoke identical match to the unit being removed and allow for all duct, pipe and electrical disconnection and reconnection works along with a full off loading and positioning passage from kerbside to installation point.


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At some stage it is inevitable that a water chiller will need replacing when constant repairs to the current system outweigh the cost to replace.

There are many advantages to replacing, the main reason would be the technological advances in current chillers including the improvement in energy efficient units, ultimately saving you money in running costs. With the new F Gas regulations in place, your current chiller would probably also fail the new test for the refrigerant gas

At Morreston, no matter where the chiller is located i.e. rooftop, shop floor or plantroom or the type or size of the machinery, we have the necessary skills to efficiently replace the chiller with consideration to the minimum downtime being our prime objective.


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Currently in our 10th year, Morreston have experience in all types of air conditioning installations including water chiller replacement and large air handling unit refurbishment.

Our expertise involves craning heavy equipment in to place on rooftops of commercial buildings that weight several tons.

Our services include replacing air and water cooled chillers, cooling towers, fresh air units, steel piping, dry coolers, VAV air handling units and adiabatic condensers.

We would complete an initial survey of the proposed site and are fully responsible for the successful completion of the replacement during the entire project whilst making the changeover very efficient with very little downtime


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We have recently launched our new website with information about our latest projects, services and products.

Morreston is a young company with exceptional experience. Its principles and workforce know the air conditioning and related industries extremely well, having served on major projects over many years.

Specialising in Water Chiller replacements and Air Handling Unit Refurbishment.

So, by offering a complete package for all types of building you get the benefit of tight project control, fully managed by our own team, plus the assistance of associated specialist contractors whenever required.

Our blog will keep you up to date with all new projects and latest news about Morreston


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