ENERGY SAVING EQUIPMENT
visits. For building operators, the ability to spot problems early for reduced equipment downtime and cheaper running costs are of considerable benefit.
Proactive maintenance
Regular maintenance is also key to reducing a building’s energy consumption and carbon footprint. Controllers can help by monitoring and providing alerts for maintenance issues ahead of failures, sending fault codes out to engineers to enable a quick site visit and flagging when filters require cleaning. An air conditioning unit’s filters, coils and fins require regular maintenance and cleaning for efficient operation. Neglecting maintenance results in a steady decline in air conditioning performance as energy use increases. Clogged filters can add anything from 5% to 15% to energy running costs. There is also the ongoing deterioration of the units if not maintained regularly, which will lead to the reduction of the operational lifespan of the units.
As controls are so important to the operating efficiency of any building, Hitachi runs specific half-day training courses on its controllers,
covering system commissioning and set up and BMS integration, as correctly setting up the controller is a vital component in the successful delivery of any energy-efficient HVAC system and it’s an area where installers and engineers may be less familiar.
With the right application and the correct commissioning, controls will drive down the carbon consumption of any system and play their part in both providing a pleasant internal environment and helping in the fight to prevent a further rise in the global temperature.
Outside the box
So, controls hold the key to reducing the carbon footprint of any HVAC installation, but it’s also worth looking outside the specific needs of the job for extra energy efficiencies.
For example, could a high-temperature air source heat pump, like Hitachi's Yutaki S-80 be incorporated to deliver domestic hot water (DHW up to 75°C) without an electrical backup? Or, if you’re utilising a VRF system, consider something like the Hitachi Hydro box as an add-on. The Hydro box will provide hot water year-round
along with the required space heating and cooling, all from a single VRF condensing unit. As demand for cooling and heating continues to grow, manufacturers will continue to invest in R&D and come up with innovative ways to cut carbon emissions, but we can all do our bit now - by ensuring systems are correctly set up and controllers are used to maximise energy and labour efficiencies.
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www.hitachi-hvac.co.uk/
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