Smartcool ECO3

The ECO3 and ESM are Smartcool’s unique retrofit technologies that use intelligent compressor optimisation designed to reduce the energy consumption of compressors in air conditioning, refrigeration and heat pump systems by up to 30%.

Air conditioning, refrigeration, and heat pump (HVAC-R) units waste a lot of energy through natural inefficiency. Their compressors consume about 70% of the total energy used. The average building has about 35% of its total energy used up by these systems - and many businesses see much more of their energy bill coming from heating and cooling their estate.

Designed in the UK


Smartcool's ECO3 is an energy efficiency retrofit product that can save up to 30% kWh energy used by the compressor in air conditioning, refrigeration and heat pump systems (HVAC-R). The ECO3 achieves savings using intelligent cycle optimisation technology.

The ECO3 can improve energy efficiency for:

  • Packaged air conditioning systems - both residential and commercial
  • Small commercial refrigeration systems
  • Combined heat pump systems - both residential and commercial

Even on the most modern equipment with intelligent controls, or where other energy saving processes are already installed, Smartcool's ECO3 provides significant energy efficiency gains.

The ECO3 works with any load profile, night set-back routine, non-demand related interruptions, demand limiting and demand response functionality.

The ECO3 interfaces with existing controls and equipment, and installation can be completed in an hour without any system interruption or impact on controlled space conditions.


Tech Sheet

How it works

Installation completed
without any system interruption

The ECO3 works
with any control system

The ECO3 interfaces with
existing controls and equipment

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 Smartcool ECO3 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 ATT controls in our Dental Block and added the ATT’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 ATT as standard to all new AC installations. Climateq is a great company with proven technology that has saved us loads of energy and money. I do not recommend many companies, but Climateq have built a good company in which I have confidence, long may it continue.

Andy 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

Thank you for all your assistance helping me set up the WiREMS system in my apartment. Your customer service was excellent, you responded within minutes to my enquiry and the system was set up to my needs following your very clear and precise instructions over the phone. The follow-up data sets are now safely stored and will be used to update the settings as required. The system works very well and saves significant energy usage, ensuring the heating or cooling is focused in a controlled environment. Once again, thank you for your excellent service.

Steve Yollan - Owner, Home Yolland, Acapulco Playa, Nerja, Andalucía, Spain

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