On paper, an ERI 25 water cooler isn't a particularly complex device to design: we're used to handling much larger and more complex devices!
But that's precisely why: the challenge of cost optimization (components, assembly, etc.) becomes all the more challenging when the product is simple and compact.
During the initial redesign, the chassis, for example, was completely redesigned: instead of a two-tiered assembly, the entire cooler is now assembled on a single base, which is much more compact and economical.
Thus, while maintaining the same performance as the initial product, our design enabled a significant reduction in cost (around 20%), while also improving production capacity (simplified assembly).
Its main features include:
- A cooling capacity of 2800 W at 20°C outlet water temperature, 45°C ambient temperature
- A hermetic rotary compressor running on R134a (HFO blend refrigerant, GWP index 631)
- An integrated copper coil evaporator
- A non-ventilated, micro-channel air-cooled condenser
- A 15 mm PE tank with a capacity of 45-50 L with an electric water level
- A 500 W in-line heater
- A Pedrollo Jetm 1A centrifugal pump
- 3 returns/outlets with a flow switch on each return
- A hydraulic pressure transducer
- A connection system using male and female Parker self-sealing fittings (total of 6 pairs)
- A one-piece frame and galvanized screws, with pre-drilled holes and parts for a mounting system, for integration into the customer's chassis
- A remote IP55 Fibox control box plastic
- An ELIWELL Free Smart controller manages compressor and heater start-up based on tank temperature
- And RS485 ModBus communication with system start/stop, read/write of setpoints (hot/cold), tank temperature reading, and fault reporting (flow rate, level, circuit breaker).
Today, the ERI 25 series are rolling off our assembly line (in batches of 5-6 units) and confirm our ability to support industrialization projects for air conditioning and cooling systems.