ENERGY
BIG PERFORMANCE, SMALL FOOTPRINT
D
implex is expanding choice in heat pumps for larger homes with the new LA MAS range of air source heat pumps. A new design gives the range a considerably smaller footprint than previous options, allowing greater freedom over location and system design, as well as reduced visual impact. The range offers homeowners the best of both worlds as it can be used either as the sole heating source for a property, or in ‘bivalent’ mode in combination with an existing conventional heating system to reduce bills and cut CO2
emissions.
The units are extremely quiet in use thanks to the use of innovative ‘owl’s wing’ fan blades. In addition, the air intake is downward slanted to deflect any noise emissions, giving a sound level of just 33 decibels at 10m – that’s barely a whisper.
Available in a choice of two outputs,
11kW and 16kW, the LA MAS range is designed to meet the space and water heating requirements for larger domestic installations. With variable heating water flow temperatures from 35°C to 55°C, weather compensated, the range is suitable for use with underfloor heating or Dimplex SmartRad fan convector radiators, as well as to produce domestic hot water. Full of features designed for improved efficiency and easy use, the range has an energy efficient auto adaptive defrost cycle, and also includes electronic soft start to reduce starting current loads. An easy-to-use wall mounted WPM heat pump manager control is also supplied. Manufactured in the UK for the UK climate, the range features corrosion- resistant stainless steel inner frame and powder coated outer housings. To make specification, selection and
order straightforward, the LA MAS is available as part of a heat pump package containing correctly sized heat pumps and complementary accessories suitable for most common applications. LA MAS packages are ideal for either new build or retrofit installations. Tel: 0845 601 5111 Email:
marketing@dimplex.co.uk www.dimplex.co.uk
Switched-On to Risks of Green Technology at NEMEX
T
he fast-growing trend for supermarkets, hospitals and hotels, to fit Voltage Optimisers (VOs) as an
energy-saving device is being billed as a commercial ‘no-brainer’.
But there are warnings that if too little attention is paid to the risks of installing an optimiser without ensuring continuity of supply, then the impact on an organisation could be huge.
Ensuring continuity of the supply of electricity to a building or facility is clearly essential for its continued operation. However, the risk of interruption is high, whether during the installation or routine maintenance of the VO. And although not a common event, there is also the possibility of catastrophic failure of the VO, which would shut off supplies until the problem was fixed or the device was replaced.
20| SUSTAINABLE FM | APRIL 2011
Loss of supply is an issue that can easily be avoided through the installation of correctly configured switchgear, and the fitting of a bypass switch. Bypass switches ensure that the supply can circumvent the VO and reinstate the facility temporarily back onto mains electricity. Richard Kennedy, managing director of Switchgear Systems, a leading supplier of bypass switches to industry, says specifying a bypass switch can be as important to an energy saving installation as the VO that is chosen. He says: “One of the most cost efficient ways of making a business more sustainable is through fitting energy- conservation technology. Large facilities such as supermarkets, hotels and hospitals are turning to voltage optimisers as an electrical regulator to adjust the voltage used by from the UK standard 240 volts to 220 volts. Demand is such that we are now expanding our range of switches to 4000AMP models – suitable for the largest and most complex factory operations. “But some organisations are still not including a bypass switch within their installation, and this could have large and potentially catastrophic consequences for their operations. A factory that has to halt
production because of interruption in the electricity supply, could easily lose hundreds of thousands of pounds in a single day.
“Bypass switches allow a facility to carry out routine maintenance on their VO without disruption as well as protecting against a failure of the system. By simply allowing the option of switching the VO out of circuit, they also allow facilities managers to measure how much electricity they are actually saving.”
Switchgear Systems specialises in designing a bypass switch to suit an installation’s requirements in the shortest possible timescale. Kennedy continues: “We know that businesses such as supermarkets have to respond to customer demand and keep their plans fluid. We offer a personal, flexible service, with the inclusion of standard or bespoke bypass switch panels, making installation quick and straightforward for electrical contractors.” Switchgear Systems Ltd will be exhibiting at NEMEX in Halls 3 and 3a, on stand N19, at the NEC from 24th – 26th May 2011.
www.switchgear-systems.com
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