Posts Tagged ‘Heat Pump’


Focus on: Fujitsu J-IIS Mini VRF (2-Pipe)

Thursday, July 16th, 2015

It’s easy for this little diamond to go under the radar,  given it has a height of less than 1M.  The Fujitsu Air Conditioning J-IIS Mini VRF is becoming a very popular option for applications where space is restricted or the height of the condensing unit it paramount.

Fujitsu Air Conditioning J-IIS Outdoor

The single fan VRF can connect up to 8 fan coil units with up to 130% connected capacity and has a quiet operation of as low as 51dB(A) (4HP model).  Despite it’s small size, it certainly isn’t small in operation.  Comprising of full DC inverter control, a DC twin rotary compressor, a three row large heat exchanger and DC fan motor.

Not forgetting the engineer either, the outdoor has been designed for easy maintenance.  It has a 7 segment LED showing operation status, addressing & pressures hosted with a removable PCB panel for ease of access.

There is a full range of easy-to-use controllers available, from wireless remote controls to a PC-based control software. The installation can also be linked to a building management system. The touch panel LCD wired controller has a large clear screen for ease of use and allows service engineers to interrogate indoor and outdoor units to diagnose the system.

The Fujitsu Air Conditioning J-IIS Mini VRF is available from Cool Designs Ltd.

CDL Toshiba RAS Wall Mount Offer

Tuesday, March 10th, 2015

One of our most popular offers over the last few years has been our summer offer on Toshiba Air Conditioning RAS Wall Mounts.  We’re delighted to be able to once again reduce the prices of these systems in time for the coming heat wave (no doubt!).  The offer will run from 1st April 2015 through to 31st October 2015.

SKV_High Wall


We have been able to maintain the same price as last year and also have added a fourth system size from the family.  We also have quantity discounts available.  Please contact or your local branch for pricing details.

RAS-077SKV 2kW Toshiba Air Conditioning Inverter Heat Pump Wall Mount
RAS-107SKV 2.5kW Toshiba Air Conditioning Inverter Heat Pump Wall Mount
RAS-137SKV 3.5kW Toshiba Air Conditioning Inverter Heat Pump Wall Mount
RAS-167SKV 4.5kW Toshiba Air Conditioning Inverter Heat Pump Wall Mount

Toshiba NEW Small Digital Inverter Twin, Triple & Quads

Monday, March 2nd, 2015

With the release this year of the new Toshiba small Digital Inverter, we are now pleased to confirm their connectability as twin, triple or quad systems.

The indoors can be connected to Digital Inverter Heat Pumps and Super Digital Inverter Heat Pumps, both also being suitable for R22 / R407C replacement technology.

The table below gives an example of the UK Cooling capacities (kW) and combinations that could be used.

Toshiba Multi Table for Small DI

Toshiba Multi Table for Small DI

As usual for Toshiba Digital Inverter Twin, Triple & Quad connections, power is taken to the condensing unit and then 3 core + earth to the header indoor.  Two core + earth then to the second indoor and from that to the next and so on.

New Toshiba RAS Multi-Split Inverter Outdoor Units

Tuesday, February 3rd, 2015

Ras Multi Condensing Unit


Cool Designs Ltd are pleased to announce the launch of the new Toshiba Air Conditioning RAS Multi-split Inverter Heat Pump Outdoor Units with improved energy efficiency which are fully compliant with ErPLot10 and feature a field selectable DIP switch to enable Heating Only operation.

The heat pump condensing units are available from Cool Designs in Q1 2015 and can operate in cooling from -10 to 46’C and in heating from -15 to 24’C.

The model line up is as follows :

9kW (heating) RAS-3M26S3AV-E 3 -Way Multi
9kW (heating) RAS-4M27S3AV-E3 4-Way Multi
12kW (heating) RAS-5M34S3AV-E 5-Way Multi

Each of these has a dimension of H890 x W900 x D320mm.

The energy efficiency of these new models is excellent as you would expect with A++ in cooling and A+ in heating.

Toshiba Air Conditioning expand Estia Air to Water to include high temperature option

Wednesday, November 5th, 2014

Toshiba Air Conditioning have released High Temperature Estia Powerful Series 4 air to water inverter heat pumps.

These are capable of providing hot water to a maximum of 60’C in heat pump mode.  Fitted with an improved outdoor heat exchanger, new pressure sensor and enhanced software protocol delivering increased compressor frequency, the new High Temp Estia Powerful produces outstanding performance with COP up to 4.88 at standard conditions.

Toshiba Air Conditioning hands on Estia training is available from Cool Designs Ltd.

New Toshiba SMMSi

Tuesday, June 22nd, 2010

2010 Sees the introduction of the next in the series of  Toshiba VRF.  The first product due is the new range of Heat Pump VRF condensing units later this year.  Little known about exactly what breakthrough’s Toshiba have accomplished but we have found that that these systems will include three inverter compressors.  Toshiba made an industry first by making their current VRF fully inverter with each module including two inverter compressors with the ability to isolate each individual compressor if needed.  More on this as we hear it!

Toshiba SMMSi known features

  • Three Twin Rotary Inverter Compressors

Toshiba Bi-Flow Console

Tuesday, June 22nd, 2010

Now available from Toshiba the Bi-Flow console unit.  Available in three sizes at 2.5kW, 3.5kW and 5.0kW the Bi-Flow utilises the latest digital hybrid inverter technology.  The front panel includes a child safety lock and the system gives an auto diagnostic function.  The system use three dedicated condensing units enabling runs of up to 20M.

Of course from Toshiba you would expect energy efficiency to be a prime issue and this model does not disappoint with a COP of up to 4.27 and EER of 4.2.  The main feature of the unit though is it’s Bi-Flow supply providing improved air distribution.

The Bi-Flow system is also able to connect to the Toshiba RAS Multi Condensing units.

Please contact Cool Designs Ltd for further information.