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Adcock and E2 complete major R22 replacement project at Fujitsu Services

15 September 2016

Adcock Refrigeration and Air Conditioning have completed a major R22 replacement project on behalf of E2, a leading provider of bespoke energy management, for Fujitsu Services in Birmingham.

The project involved replacing all of the air conditioning and air handling units in the entire 145,000 square foot building.

The replacement project was phased over an eight month period due to the building being fully occupied.

There were 6 phases in total which required individual working areas of the building to be relocated temporarily during the fit-out, allowing contractors to have sufficient access to each area whilst ensuring that staff were not disrupted.

Works included the decommissioning of the existing server room. For better efficiency, the fit-out teams and contractors worked alongside one another, refurbishing the interiors and installing the replacement ductwork and fresh air ductwork at the same time.

This meant that both teams could complete each individual phase as they went along, allowing business to resume as normal as soon as each phase was complete.

The internal system design had to allow for easy access for maintenance and servicing which is essential for guaranteeing that the system remains fully up and running at its best at all times, without the need to disrupt staff working in the area.

Through efficient team planning this was easily achieved.

The New System In total 11 Fujitsu VR-II Heat Recovery systems were installed, along with 27 condensing units and 120 ducted fan coils and 2 split systems.

The systems are fully managed via by a BACnet® Gateway and Lite touch panel system control.

The server room systems were replaced with a heat recovery close control system comprising three DencoHappel modular heat recovery units which automatically share the cooling output equally over a six week period whilst monitoring the temperature, keeping it constant and controlled through a single control unit.

Being far more proficient, the systems provide precision cooling within one degree Celsius and offers highly efficient heat recovery of up to 85% energy savings which is highly advantageous.

The outcome It was particularly important for E2 to find a service provider that would be able to manage all aspects of the R22 replacement project, from the safe disposal of the R22 refrigerant through to the complex design phase which plays a huge part in determining whether the entire system will offer the very best levels of performance and heat efficiency.

Adcock’s extensive design knowledge meant that the correct heat recovery system was selected, one that suited every characteristic of the building but also one that remained in line with regulations and requirements.

Through thoughtful planning and careful deployment, the correct amount of fresh air is delivered in to the building, whilst both climate control and energy efficiency have both improved significantly.

The entire project was completed both within specified timeframes and to the very high standard promised.

As a result of the quality of work delivered, Fujitsu Services have subsequently awarded Adcock the contract to service and maintain the new systems over the coming years.


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