Hercules delivers the highest energy efficiency in its class, with an IEER of 4.29. In fact, Hercules is over 42% more efficient than the minimum BCA compliant system.
Although designed to handle a 195kW load, Hercules can ramp right down to 25%, saving a lot of energy when load requirements are down. It’s a pressing 21st century business issue, especially when your carbon footprint can put the boot into your bottom line.
A technological first, Hercules has two variable speed compressors that closely match the thermal load needs of a building. With a system turn down ratio of 4:1, the capacity can be adjusted right down to 25%. Both compressors simultaneously ramp up and down to maintain temperature while minimising energy use, and at very low part load conditions, run time equalisation occurs.
Hercules uses an EC Plug indoor fan to deliver exact airflow requirements whilst minimising power usage at the same time. In fact, EC Plug Fan technology is up to 50% more efficient than traditional forward curve belt and pulley systems.
Hercules also uses EC outdoor fans to deliver improved performance and efficiency when compared to AC technology. While AC motors have an efficiency of 50-70%, EC motors perform with up to 90% efficiency. This not only results in better use of primary energy, it’s also achieved with less heat loss, which adds up to a longer product life cycle.
For such a large unit, Hercules starts up with a deceptively small nudge – just 25 amps at start-up. That’s smaller than a lot of home air conditioners, and can make a huge difference to the cost of installation. It may also mean lower infrastructure costs, and can reduce the load on the power grid and stress on the compressor. It drastically lowers complexity and time restraints for consultants, builders and electrical engineers, and it can make the difference between having to upgrade the entire electrical mains at enormous cost.
Hercules offers enough flexibility to suit most applications, thanks to things like multiple handing options, container transportable for ease of transit, flexible ductwork connections, structurally enhanced independent base, factory fitted lockable 3-phase load break isolation switch, and the ability for outside air to be introduced manually or automatically to comply with the Building Code of Australia (BCA).
Thanks to its variable speed capability, Hercules can deliver temperature stability up to +-0.3°C of a degree at the sensor location. And you can control that on or off-site as it’s compatible with most BMS systems. Hercules also automatically adjusts its fan speed as the filters get dirty, to ensure continuous optimal performance.
In independent research at a shopping centre at Narellan, a newly installed Hercules was compared with an existing two stage fixed speed AC technology. Over the 14-day testing period, Hercules achieved total energy consumption savings of 40% compared to the two stage fixed speed air conditioner. On a daily basis, energy consumption savings of between 21% and 69% were achieved.
Based on historical weather observations, the total electrical energy savings expected from the Hercules unit across the four month summer period is estimated to be 46%. This equates to an estimated financial saving of $6,297 (based on $0.18 per kWh) for the same period.
Hercules provided more comfort too. During the trial the hottest temperature day was 38.2°C. The conditioned area for the two stage fixed speed technology reached 26.7°C, while Hercules achieved a temperature of 24.9°C.
On that same day, and despite achieving a cooler temperature, Hercules consumed 62% less electrical energy than the two stage fixed unit.