16 Heat Pump News
Sponsored by: Welcome to Daikin’s fourth generation
DAIKIN Europe’s VRV Q heat pump replacement system – which enables cost-effective R22 system replacement – and its water-cooled VRV-W series for taller buildings and geothermal applications, both now incorporate the latest VRV IV technology for easier installation and improved energy efficiency. VRV IV introduced weather dependent variable refrigerant temperature technology, continuous heating during defrost and the VRV configurator for simplified commissioning and servicing.
Both variable refrigerant temperature and the configurator are now features of replacement VRV IV-Q for heat pump replacement and the water-cooled VRV IV-W series. For installers, the VRV configurator software simplifies commissioning. It allows settings to be configured remote from the installation, so less time is
required configuring the outdoor unit on site. Several installations can be also be commissioned using the same settings, saving even more time.
Ongoing maintenance is easier too, thanks to a graphical interface allowing installers to evaluate operational data and errors.
Variable refrigerant
temperature technology delivers a 28% increase in ESEER. Any of the eight different modes, which can be selected at any time, increase flexibility and available options depending on whether priority is on efficiency, comfort or reaction to load variations. Most of the modes are weather dependent, thus meeting a building’s needs in the most intelligent way. Changing settings is easy and allows the VRV system to be customised to meet end- user requirements.
Daikin Europe’s VRV IV Q series is a fast and cost-effective
alternative to complete system replacement. It uses R410A refrigerant gas, which is the most efficient refrigerant that is widely available on the market, yet allows existing R22 pipework to be retained.
The VRV IV Q series also potentially allows controllers and indoor units installed since 1996 to be retained, so only outdoor units and heat recovery branch selector boxes have to be replaced, thus spreading costs and minimising disruption to business operations. Less waste is produced and cost savings of up to 50% can be achieved when compared with replacing an entire system. Changing to VRV IV-Q also means energy bills can be reduced by up to 70%. High seasonal efficiencies through variable refrigerant temperature technology and easier installation and configuration using the VRV IV configurator are also features of
Daikin Europe’s water-cooled VRV IV-W series.
The water-cooled range is ideal for taller buildings where the maximum allowable refrigerant piping of air-cooled systems could be exceeded or where there is little space to site outdoor units. The compact and lightweight units can be stacked to save even more space, with the 8hp unit weighing just 149kg and being under 1m high.
Dimplex launches heat pump in A-Class of its own
DIMPLEX Renewables has launched A-Class, the next generation of high efficiency air source heat pumps capable of delivering full heat output at air temperatures down to -7ºC and a maximum flow temperature of 65ºC. Designed specifically to maximise year-round heating system efficiency in a UK climate, it is fully operational at temperatures as low as -15ºC and outperforms the Heat Emitter Guide with a
maximum flow temperature of 65ºC.
It includes Copeland Scroll compressor technology, intelligent heat recovery and is designed with MIS3005 in mind – which means there is no need to oversize systems. Simple to use controls with up to four heating zones provide easy operation for home owners too.
A-Class comes in a range of pre-packaged options, specified for both new build
and existing homes, with everything needed for a quick and easy installation. Packages include the new Dimplex EC-Eau Smart hot water cylinders, Dimplex SmartRad low temperature radiators and high performance solar thermal panels for complete renewable solutions.
A-Class is initially available in 12kW and 16kW models suited for larger homes with smaller, lower kW models planned for later this year.
Space Air ACR News April 2014 Visit ACR News online at
www.acr-news.com
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