Case studies

Diss Rugby Club

Design and installation of ventilation to changing rooms, showers and toilets

Diss Rugby Club

The brief was to design and install a ventilation system for the building, which was being re-modelled and re-furbished.

The building presented a few challenges, due to it being an existing facility that was being updated and extended. In other words, we had to work with what we were given. This is something of a speciality for Thermalair and our years of experience allowed us to come up with a very workable solution that completely satisfied the client’s remit.
View from the main pitch. Ventilation discreetly installed.
Grilles colour matched
The scheme consisted of a combination of Daikin VAM total heat exchanger units and Vent Axia fan units. Correct ventilation was key, in this case providing a flow of incoming fresh air and outgoing stale air. The heat recovery ventilation solution recovers heat and optimises the balance between indoor and outdoor temperature and humidity, resulting in a very efficient system.

The client required colour matching for the visible external grilles and louvres, meaning the whole system was installed in an unobtrusive way.

Upgrading Condensers at Arla Foods Dairy

Whilst carrying out routine maintenance at Arla Foods, we made the client aware that their ageing Friga-Bohn condensers were reaching the end of their life and it would be prudent to replace them before they failed completely.

As a critical item in their production process, it was vital that a failure never happened. Arla produce milk and cream and these need to be kept at strictly controlled temperatures.

One of the things we made Arla aware of is that condenser technology has moved on since the original condensers were installed. We recommended that an option to consider was the inclusion of a pressure control panel. The benefits being:-

  • As temperatures drop at night time it allows for the fans to be run at a lower speed. This lowers the noise of the unit and also lowers the running costs.
  • Daytime temperatures will generally be lower than 35oC ambient throughout the year, thus the fans will run at a lower speed than full speed.
  • The pressure sensor sends a 0-10 volt signal to the control panel which subsequently adjusts the fan speeds automatically to deal with changes in conditions.

As an energy saving option Arla were happy to proceed with our recommendations.

case-4Given the go-ahead, Thermalair set about putting together a programme to replace the units without causing disruption to Arla. Thermalair and Arla worked together during the planning process, which involved setting a date which suited the client. In addition we worked with a supplier of temporary cooling so that when the original condensers were decommissioned a source of temporary cooling was already in place.

Another issue to overcome was that the condensors were located in the middle of the roof of the high level building and a crane was required to lift off and lift on. To minimise the cost of crane hire, Thermalair came up with a work schedule so that all the lifting work was carried out in less than a day. Despite poor weather, Thermalair achieved this objective.

From decommissioning through to installation of the new condensers, Thermalair were constantly on site ensuring all aspects of the plan came together. As a result of detailed planning, the whole job went very smoothly, as expected, and was completed within a week.

The client is delighted with how the project went and the new condensers are now operating and chilling the relevant areas much more efficiently and with a lower power consumption.

St Peter’s Church in Bury St Edmunds

St Peter’s Church in Bury St Edmunds is a warm and inviting church built in a traditional style from flint and brick.But perhaps not as warm as it was because the elderly gas-fired air heating system was becoming unreliable, the two heaters now being obsolete and spares increasingly scarce.It had been very effective and given good service, and we were asked to look at the replacement of the heaters while retaining the basic warm air design.

This wasn’t an easy task as the heating units were squeezed into a small room in the tower above the porch and beneath the bell, so tight that there was virtually no floor left and maintenance had to be carried out while standing on the ductwork conveying the warm air into the nave.Even the ladder into the bellchamber stood on the ducts, and we had to break up the old equipment and ductwork to get it out.

The solution we devised was to replace the old horizontal-discharge heaters by new-generation ones having vertically-downwards airflow.Manufactured by Reznor, they are also ‘room-sealed’ and have a much better operating efficiency and therefore reduced energy consumption, helping to minimise the running costs of the church.The adoption of this type had a further significant benefit as it simplified and reduced the ductwork considerably and had a much smaller footprint, giving better access both to the heating system itself and to the bell


  • The exterior of St Peter’s Church

  • The interior of St Peter’s Church

  • Hidden behind the tower walls are two heaters, gas pipework and ducting

  • Cleverly blended in to the fabric of the church, the louvres direct heat from the two heaters to the front and rear of the nave (main seating area)

Care UK – Head Office Colchester

case studiesCare UK, a major provider of services to the healthcare industry, approached Thermalair to help design and install a complete replacement of the existing heating, cooling and ventilation systems at their head office management and administration centre in Colchester.

With in excess of 350 people working in the building, and continuing to work whilst the replacement was carried out, careful planning and work practices were essential to making the job go smoothly.

Over a period of several weeks, the old air conditioning systems were decommissioned and new equipment fitted in stages, always ensuring minimal disruption to Care UK operations.
Equipment chosen was from the extensive Daikin range and included a number of their VRV systems.

The Daikin VRV system is a multi-zone air conditioner with variable refrigerant flow control. It gives the ability to maintain individual zone control in each room and floor of a commercial building.

VRV provides a total solution for heating, cooling, ventilation, hot water production, air curtains and central control.

casepic-2
The completed installation was handed over on time and Thermalair maintain an active involvement, which includes regular servicing and remote monitoring. The service provided by Thermalair includes remote access via Daikin’s I Touch Manager. This allows Thermalair engineers to identify faults, adjust settings, programme timers, all via an internet connection, meaning Care UK staff do not need to be experts in operating the systems. They leave all this to Thermalair.