At this time of year, it is advisable to clean air conditioning systems in preparation for rising temperatures and increased use through the summer months. This case study outlines how Climalife helped a hotel in London's Mayfair.
David Blakey Services recently gained the service contract with a hotel in Mayfair and were called in to look at its air conditioning systems. The roof had no local water supply which meant that the chillers had not been cleaned for quite some time and were tripping out at high ambient temperatures. There were also a number of evaporators in the rooms that were found to be badly blocked.
Air conditioning systems such as these can provide perfect conditions for microbial growth. Moisture, darkness and warmth are three key ingredients for microbial growth and these naturally occurring contaminants use the moisture present in air conditioning systems as a breeding ground.
This growth is accelerated when warmth is added, where fungi and bacteria can colonise and sometime proliferate to become harmful concentrations.
Frionett cleaning solutions
DBS selected the Frionett range of high-performance cleaning products from Climalife to address the problems at the hotel. These products, approved to EU standards, can act as effective treatment against fungi, mould, algae and bacteria, including Legionella, Salmonella and Listeria.
On the hotel roof, the engineer from DBS stripped out the fan motors and sprayed the coils with Frionett Power, a general purpose cleaner for external units. It is an alkaline product, intended for the professional cleaning of refrigeration and air conditioning equipment. DBS then also ran a temporary water supply to rinse off the dirt and debris until the water ran clear.
The badly blocked evaporator units in the hotel rooms were completely stripped down and cleaned with Frionett Activ Foam, a powerful cleaner intended for indoor air conditioning units and formulated to eliminate bacteria and algae. It cleans, degreases and removes foul odours from air conditioning (wall and ceiling units) and refrigeration equipment (evaporators).
John Herbert, Service Manager at DBS Services, said: “The results from using Frionett were far better than anticipated. Our customer was very happy and has requested that this becomes part of the regular maintenance schedule.”
To prevent health risks, odours, blockages or corrosion, microbial growth must be controlled before it becomes a problem. It is recommended that appropriate cleaning forms part of a regular service and maintenance schedule – ideally every three to six months, depending on the system. Growth and spread of micro-organisms can be quickly and simply minimised.
The lasting protection provided through appropriate cleaning can offer peace of mind to contractors, facilities managers and end users who are all responsible for ensuring hygienic operation of systems. System efficiencies will also be optimised, with a reduced likelihood of breakdowns and call outs between servicing.