Here you can find all our latest technical bulletins keeping you up to date on all the important legislation and industry changes in the air conditioning, heating and process cooling world. You can also get the latest bulletins straight into your inbox by signing up to our mailing list.
Industry warnings over R404A The HVAC industry is warning users with systems running on R404A of its imminent phasedown. With the refrigerant being one of
Are you aware of R32? If you keep updated with the goings on in the HVAC industry, you may already be aware of
Are you looking at your Server Room Efficiency? Here we discuss hot and cold aisle separation as an option for your server room cooling. We’ll
Ozone Regulation – R22 Refrigerant Phase-out Important Facts R22 Refrigerant is no longer available, not even reclaimed or recycled. If R22 is removed from an
Part 2 – Fan Efficiency
Type of Fan
There are three types of fan generally used in HVAC systems, these being: –
Much emphasis, when examining ways to reduce energy consumption in HVAC systems, is put on the rejection, absorption, generation and transfer of heat. The distribution of air, whether part of the air conditioning system or just a ventilation or extract system, is often treated as a lower priority, or sometimes overlooked completely.
The efficiency of your air conditioning system depends greatly on the design, installation and maintenance of the refrigerant condenser within the system. The condenser is the method through which the heat is rejected from the space – the more efficiently this is achieved, the more energy efficient your air conditioning system will be.
In this Information Bulletin we discuss Frequently Asked Questions concerning Air Conditioning Inspections. If the combined rated output of your AC units equals or exceeds 12 kW, you have an obligation under the Energy Performance of Buildings (EPB) Regulations to have them inspected by an accredited Energy Assessor.
Managing Risk with Server Room Cooling In managing risk with server room cooling the below are five risks to consider; Risk 1 – equipment undersized
Frequently Asked Questions for R22 Phase-out In this Information Bulletin below we discuss Frequently Asked Questions for R22 Phase-out. Remind me of my Legislative Obligation.
The Condenser is the component within the refrigeration system through which the heat is rejected. In a conventional split system AC unit the heat is rejected to ambient air via an air-cooled condenser. In larger systems the heat may be rejected to water via a water-cooled condenser, then subsequently rejected to ambient air via a cooling tower or radiant cooler.
In this Information Bulletin we will look at cooling for small server rooms.
What’s different about these rooms?
Firstly, the heat load density – i.e. kW of heat gain per m2 floor area – is much greater (typically 3-5 times greater) than for normal comfort cooling applications.
Secondly, the heat load is 100% “sensible,” as opposed to comfort cooling, which is typically 70/30% sensible/latent. Also, the requirement for cooling is 24 hours/day, as opposed to just normal working hours for comfort cooling.
EU Regulation 842/2006 (F-Gas) came into force March 2009. It relates to the containment and minimisation of leaks of HFC refrigerants from air conditioning systems.
In this Information Bulletin we look at three reasons to install evaporative cooling.
Indoor Air Quality
The recommended fresh air rate for occupied spaces is 8 to 12 litres/sec per person. Many offices served by traditional refrigeration based comfort cooling are not augmented by a separate fresh air system, causing the room to become stuffy, CO2 levels to rise, and the quality of the indoor air to deteriorate.