Project Info
PROJECT
The project included the replacement of two 15-year-old York Chillers, which had reached the end of their useful life. The Weatherite Air Conditioning Ltd team had to remove the existing chillers and build replacement water chillers which included an extensive amount of refrigeration work.
SOLUTION
Weatherite designed, manufactured and built two water chillers in situ in a small internal plantroom. There were a number of challenges in designing the new solution which required existing, obsolete technology to be replaced. Through legal ramifications and planning permission anything built on the roof was going to take a minimum of nine months to gain planning approval. M&S’s legal and contract costs would have doubled and it would have been impossible to meet lead times.
Instead of building on the roof externally, Weatherite designed a system that would transfer all the cooling kit internally into a plantroom in the store. This meant that they would significantly reduce logistical costs and they would meet stringent deadlines. Furthermore, they would have no legal costs, and even more importantly, not disrupt the store.
Building the water chillers on site in a small area took a huge amount of planning. The cooling equipment had to be transferred in pieces via a goods lift and every component had to be measured at Weatheirte before transporting onto site. Once the existing chillers had been dismantled, the existing framework was refurbished and modified to house the new air-cooled condenser coils and high efficiency EC Fans. Due to the very stringent noise constraints on-site, the condenser EC Fans were fitted with AXITops Diffusors for improved airflow and reduced noise levels. This all contributed to the new chillers having a much lower noise levels than the existing chillers without the need for attenuation to be refitted around the new chiller plant.
Weatherite also replaced the existing circulation pump with a twin head circulation pump to ensure resilience with the new installation allowing for some standby capability.
Weatherite Service & Maintenance is responsible for the upkeep of the equipment which legally has to be maintained every six months