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Case Study of a Mitsubishi Heavy Industries Air conditioning Heat-pump installation at CJ Dryling Bedfordshire (10/10/16)


Installation of a 2-floor office air conditioning heat-pump system:

Orion air conditioning and refrigeration ltd are pleased to complete the installation of a Mitsubishi Heavy Industries air conditioning heat-pump heating system for a two-storey new office building for CJ Dryling, Bedfordshire. The building was part of a continued expansion of the company which supplies and installs dryling products nationwide. The building has around 310 meters/squared of area over two floors with no existing heating system in place. The units installed were part of a proposed centralised heating and cooling system that fed 5 areas on each floor. The ducting was run in flexible insulated spiral duct with stylish metal circular diffuser outlets in a white finish fixed into the ceiling.


Project Pictures:


Eco-Touch: Data can be retrieved from the controller:




Details of the Mitsubishi Heavy Industries air conditioning heat-pumps installed:


2 of the Mitsubishi Heavy Industries Air Conditioning FDUM125VF1 Ducted (12.5 kW / 42000 Btu) Heat Pump Inverter 240V/415V~50Hz units were installed to serve the entire office area's with heat in winter and cooling in summer. On each floor their areas were broken down into 5 different areas or individual offices, each area being served by a diffuser outlet and return air diffuser.

The Mitsubishi Heavy Industries Air Conditioning FDUM series of ducted units are extremely versatile and offer a efficient and cost effective way of heating an area. They are very competitive to purchase when compared to a wet system with radiators which would have worked out to be close to 3 times the cost. Combined with the Mitsubishi Heavy Industries wired Eco-Touch controller which offers a verity of control options to optimise the running of the unit such as ceiling height offset function and 5 speed fan options amongst others. These units have a high COP (Average 3.65 initial input on) which means that every 1000w of electrical energy going in produces 3650 watts of heat. In our opinion the Mitsubishi Heavy Industries Air Conditioning FDUM series in the best ducted unit available when combined with the touch pad style Eco Touch controller. For more information on Mitsubishi Heavy Industries Air Conditioning FDUM heat-pump inverters please here.


Workshop heat pump air conditioning efficiency and CO2 emissions:

The Mitsubishi Heavy Industries Air Conditioning system take around half an hour to heat fully the area, but once the area is warm the outdoor inverter heat-pump slows down because the temperature has been reached therefore just pumping small amounts of heat in to maintain temperature. This is the benefit of inverter air conditioning systems as the power used is significantly reduced, typical running cost of the system equate to around 38 / week in nominal winter conditions.

Overall the Mitsubishi Heavy Industries FDUM system is a cost-effective way of heating and cooling multiple areas. The new control systems introduced recently including the Eco Touch wired controller makes the unit very easy to use, efficient, reliable and ultimately affordable to run. With automatic mode select which is not a standard feature on many brands of air conditioning gives the user the ability to set a temperature which the Mitsubishi Heavy Industries FDUM unit will maintain by either putting the unit in to heating or cooling mode automatically. This is a fantastic feature when the user doesn't want the fuss of having to switch to a certain mode to suit the seasons, the unit will do it for you.



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Server room air conditioning systems

Server room air conditioning systems that save electricity,  make inverter air conditioning your priority.

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Specialist air conditioning and refrigeration systems for industrial applications.


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Contact Us:

Sales Installation and Service UK: +44 (0)1234 841221
Tel UK: 01234 841221        
Fax: +44 (0)1234 852662


Orion Air Conditioning And Refrigeration Limited
10 Grisedale Court
Woburn Road Industrial Estate
MK42 7EE
United Kingdom

[email protected]








Orion Air Conditioning & Refrigeration Ltd, 10 Grisedale Court, Woburn Road Industrial Estate, Kempston, Bedfordshire, MK42 7EE, UK

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     Last updated - 13/05/2020