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Heat Pump News 23 New hybrid ground source heat pump from Kensa
KENSA Heat Pumps has created a new hybrid ground source heat pump to add to its British-made product range, addressing cost concerns and peak heating and hot water demands of larger new builds and well insulated homes.
The Hybrid ground source heat pump is available in 15kW and 21kW single phase models; some of the largest single phase ground source heat pumps available on the market.
Kensa’s twin compressor Hybrid heat pump harnesses the properties of two separate refrigerants in its compressors to deliver heat outputs similar to those provided by Kensa’s standard models, along
with hot water temperatures typically
produced by its high temperature models.
This blended design allows customers to enjoy
both defining benefits of
Kensa’s product ranges in one affordable unit. To deliver space heating and hot water the first compressor in Kensa’s Hybrid uses standard temperature (R407C) refrigerant, whilst the second compressor uses
high temperature (R134a) refrigerant.
Both compressors work together to deliver the space heating.
When producing hot water, both compressors work together initially, but once the hot water gets hotter than the standard temperature compressor’s return temperature set point, this compressor turns off. The compressor with the high temperature refrigerant then takes over on its own to provide an extra 15°C to the hot water cylinder.
The Hybrid also usually removes the requirement to periodically heat the cylinder with an immersion heater to pasteurise the hot water.
One becomes five with Panasonic air-to-air heat pumps WITH Panasonic’s range of
domestic air-to-air heat pumps, it is possible to connect up to five different rooms with a single outdoor unit using the Free Multi system for users’ personal comfort.
Space-saving and energy efficient, most combinations also meet the recent ErP Directive, having a high SEER and SCOP value (A++/A+ depending on model).
A flexible solution, using Free Multi means it is possible to provide air conditioning for up to five rooms with just a single outdoor unit.
By specifying Panasonic’s Free Multi range, users save space and benefit from better energy efficiency than traditional 1x1
systems, which in some cases can be up to 30%. Free Multi achieves high capacity at outdoor temperatures, ranging from -15°C in heating mode to -10°C in cooling mode.
New for 2013, Panasonic has introduced a 1.6kW wall mounted unit further increasing the flexibility of the Free Multi range. This is ideal for usage on very well insulated houses and in small offices. In addition,
the Free Multi outdoor units are able to modulate the compressor to an extremely low frequency, which provides high savings when there is no need for full capacity.
The outdoor units can modulate capacity to adapt production to meet the required demand of the installed indoor units. Panasonic’s DC inverter system provides precise temperature control with a low start-up current.
The twin rotary compressor, with its perfect balancing, ensures functional reliability and efficiency. This also contributes to rapid cooling and heating, increased comfort and extremely quiet operation.
Space Aircon Visit ACR News online at
www.acr-news.com ACR News November 2013
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