Modernise – Daikin360

Heat recovery retrofit: HR2

Energy and environmental savings

The energy used to produce cooling for comfort air-conditioning or for process cooling is mostly lost into the atmosphere. We could use this wasted energy to provide the heating required in the same plant at the same time. In many cases, we could recover this energy by installing a heat recovery system in an existing chiller system, and there are now two choices: a traditional system and the Daikin HR2 solution!

A traditional heat recovery system uses a water-cooled condenser in parallel with the air-cooled condenser with the system switching into heat recovery mode using a 4 way valve. This uses the water-cooled condenser water to recover the heat and transfer it to the heating system. This would obviously provide cost and energy savings together with a reduction in environmental impact and CO2 emissions.
However, to add such a traditional heat recovery system to an existing unit, already integrated in the building, could be quite difficult and expensive.

The Daikin HR2 solution gives you the opportunity to retrofit the existing chiller, with similar benefits to the traditional heat recovery, but with an easier, faster and lower cost installation. It uses a plate to plate heat exchanger in series with condenser. It also incorporates a control system that optimises the heating output, while maintaining priority for the cooling side

Thanks to the advanced control logic, units are always able to respond to building climate control requirements. The unit can produce cooling and heating simultaneously, reducing the boiler usage.

Inverter retrofit: the energy-saving solution for your chiller

Many fixed speed chillers out in the market are not operating at optimal conditions as their compressor is constantly running at full speed. However, this can be fixed by connecting an inverter to your chiller.

With Daikin Inverter Retrofit kit, the compressor speed of your chiller can be easily adapted to your needs. This results in energy savings, better comfort and reliability. You can thus enjoy the benefits of inverter technology, even if it is added after the installation of your chiller.

Why should an inverter retrofit be your next investment?

Benefit from significant energy savings …

Generally, the heating or cooling system of a building is designed based on it maximum needed capacity, or peak load.. However, such load  level is not frequently reached, resulting in energy waste. With Daikin’s inverter retrofit solution, the chiller follows the seasonal heating and cooling load. It thus always operates at optimal condition. This can lead to energy savings up to 30%. Moreover, such savings help you to easily offset your initial investment. The payback period can even be further reduced with local energy saving incentives (if available).

… and improve comfort & reliability

Deviations from your requested temperature are minimised, because the compressor speed is continuously adapting to your needs, resulting in an efficient temperature control. Furthermore, the desired temperature is reached faster.

Longer chiller lifetime

The variable speed drive ensures smooth starting and stopping of the compressors. By reducing mechanical and electrical stress on the equipment, the chiller lifetime is maximised