The Coolnomix AC-01 & AR-01 are proven retrofit controls designed to reduce the running costs of process cooling in server rooms, data centres, plant rooms, switch rooms, commercial fridges etc.

British designed, our technology cleverly optimises the operation of the condenser without affecting the temperature being delivered into the room, reducing running costs by around 30%.

Designed in the UK


  • Suitable for all refrigerant based air conditioners and commercial fridges
  • Designed for cooling running 24/7 at a constant temperature
  • Typical energy & carbon reduction approximately 30%
  • Non-invasive intelligent thermostat with dual temperature sensors
  • Choice of 16 fixed operating temperatures
  • Improved temperature stability
  • In-built alarm in the event of cooling failure (can be manually silenced or turned off completely)
  • Zero dripping or icing
  • Retrofit solution installed in 2 hours by our qualified engineers
  • Typical ROI in under 12 months
  • 3-year warranty
  • British designed technology


Tech Sheet

How it works

Install & connect
to air conditioner

Set temperature
to be maintained

Let Coolnomix do the
work & enjoy savings

Your return on investment

The inherent cost of running process cooling for 365 days a year is thousands of pounds per unit.

Based on details supplied we will calculate free of charge:

  • Your weekly running costs
  • Your savings in GBP, CO² & kWs
  • Your return on investment in weeks


On average savings
with Coolnomix installed

Our trusted clients

Don't just take our word for it

The savings made by installing the controls was very quick. We’ve already seen a reduction in our energy use as a result and have calculated that the return on investment will be around six months which is outstanding. I’d certainly recommend other organisations and businesses install these controls. Climateq provided excellent support during the installations and any technical follow up help that was required.

Matteo Littera, Energy Manager - University of Salford

We worked with Climateq on an EPC that we were undertaking on behalf of St.George’s Hospital in London. This is an exceptionally busy hospital & we’d identified that the client was wasting a significant amount of energy cooling empty rooms. We therefore installed 150 Attendant controls across the estate to ensure that this waste was minimised. Climateq’s management of the project was excellent & the controls did exactly what we expected them to so we couldn’t have been happier.

Chris Coughlan, Construction Manager – Energy Performance, British Gas Business

We installed 18 Attendant controls in our Dental Block and added the Attendant’s window and door sensors to maintain a comfortable environment for staff and patients while also reducing costs, energy and carbon. Climateq’s service and technical support was excellent so following the success of this scheme we’ve decided to fit the Attendant as standard to all new AC installations.

Andrew Johnson – Energy Manager, Royal Liverpool and Broadgreen University Hospitals NHS Trust

High temperatures in Portugal means that the country is very HVAC reliant so effective control of air conditioning assures our clients of a significant reduction in operational costs. We undertook a logging exercise using the Attendant so we could examine the actual savings. We were extremely impressed when we saw that the Attendant had reduced the running costs by 52.67%.

Alfonso Martins - Technical Director, ElectroRep, Portugal

We have hundreds of air con units which are often left on overnight or all weekend. Our energy partner installed a data logger so that we could conduct a proper evaluation of the technology. Unsurprisingly, the data showed that when the Attendant was removed, the air conditioning was running all weekend. The case was proven and we placed an immediate order.

Mike Wilkinson – Energy Manager, Morecombe Bay Hospital

I own a holiday home in Spain. During the summer months our energy bills are huge owing to the fact that guests go out all day and leave the air con running. I contacted Climateq who were extremely helpful. They recommended their Attendant which was very reasonably priced. The installation which I did myself, was easy and I now have total peace of mind that my costs are being effectively managed. I thoroughly recommend the Attendant to anyone wanting to reduce their air con running costs.

Dave Green - Property owner, Costa Blanca

We were asked to investigate an increase in energy consumption in a recently built ICT suite at one of our primary schools and discovered that the air conditioning was constantly being left on despite the fact that the room was regularly unoccupied. Our calculations proved that we would see a return on investment in around 6 months which is well within the Council’s expected payback period of 3 years.

James King – Energy Manager, Bristol Council

James Paget Hospital commissioned 30 controls as part of an ongoing drive to reduce costs. The Attendant was easy to install which meant minimal disruption to the client’s working operation. Because the Attendant has proven energy and CO² reductions with a short payback period, we have since supplied and installed numerous controls for many of our other clients who are equally as happy.

Adrian Bonfield – Branch Manager, Adcock Air Conditioning

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