Daikin enhances performance of small split air conditioners

Daikin has introduced a range of heat-pump and cooling-only wall-mounted split pairs of air-conditioning units using R410A. Three sizes of unit provide cooling capacities from 2 to 3.4 kW and heating from 2.7 to 4 kW. COPs are a minimum of 3.25 for cooling and a maximum of 4.12 for heating. Five of the six models meet Category A requirements of the EU Energy Labelling Scheme. These units are compatible with the D series Multi outdoor units. The indoor units have a stylish flat design and can be all white or white and silver. Technical refinements include a swing compressor with a high-torque DC reluctance motor. Daikin has also for the first time used a DC fan motor for the first time in its small split range, increasing efficiency over standard AC types across the motor speed range by 20 to 40%. Modifications to the heat exchanger of the indoor units have increased heat transfer by around 23%. The titanium apatite photo-catalytic air-purifying filter absorbs microscopic particles, decomposes odours and deactivates bacteria and viruses. Titanium apatite is said to be 2.5 times more absorbent than the titanium oxide widely used in air purifiers. It deactivates and decomoses more than 99.9% of influenza and staphylococcus aurea toxins coming into contact with it.
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Grenfell is the building industry's Piper Alpha says CIBSE

The recent passage of the Building Safety Act is a welcome recognition of the fact that making safe buildings is a highly skilled operation says the Chartered Institution of Building Services Engineers, endorsing the need for more effective regulation and a profound change in culture.

Underlying project-starts uptick indicates gradual recovery, Glenigan data suggests

  • 13% rise in detailed planning approvals against the preceding three months
  • 18% decline in main contract awards against the previous year
  • 9% increase in underlying starts during the three months to May

Glenigan has released the June 2022 edition of its Construction Review.