EREBATM He Reversible air-to-water heat pump Environmental care ■ Ozone-friendly R410A refrigerant. ■ Fluid from the HFC family, a chlorine-free product which does not deplete the ozone layer. ■ Very dense, so a smaller amount is required than other fluids. ■ Highly efficient, it enables a high energy efficiency ratio (EER) to be obtained. ■ The components of the EREBATMHe are free from hazardous substances. ■ The packaging offers increased protection during transport and handling, and is 100 % recyclable. Quick and simple to install and maintain ■ Easy access to all internal components: simply undo three ■ Several options for the electrical cable outlets: prepunched screws to remove the entire front panel, in order to access holes in the casing panels enable the cable to be fed via the all of the components. side, front, or rear. ■ The advanced circuit design and choice of components has ■ The EREBATMHe has gas type male couplings. enabled a compact unit to be created, with an exceptionally ■ The built-in hydraulic module reduces the space required and small footprint that is easy to transport even through narrow simplifies installation. Simply connect up all the connections: doors. electrical, water supply, and return pipes. ■ The reduced weight of the unit, and the presence of a handle ■ The coupling between the condensate draining pipe and the on the panels, ensure it is easy to transport. unit has an airtight rubber gasket. ■ 3 bar safety valve fitted as standard. ■ The mounting brackets have a specially designed shape to ■ I nternal two- or three-litre expansion vessel. ensure that the unit is safely and securely attached to its ■ Protection against high refrigerant temperatures. base. ■ Water flow controller to ensure that the circuits contain enough water to operate correctly. Twin Rotary DC Inverter compressors ■ Advanced technology, which offers maximum energy ■ The two rotating compression cylinders,offset from one efficiency, with high capacity available under peak conditions, another by 180°, and the brushless DC motor with a and optimised efficiency at low and moderate compressor perfectly balanced shaft, ensure that vibrations and noise speeds. The EREBA He heat pump uses IPDU (intelligentTM are reduced to a minimum, even at very low operating power drive unit) hybrid inverter technology, which combines speeds. This gives a very wide operating range between the two electronic control logics: pulse amplitude modulation minimum capacity and the maximum capacity in continuous (PAM) and pulse width modulation (PWM) to ensure operation, which guarantees that the system is always the compressor provides optimised operation under all optimised and provides maximum comfort at exceptionally conditions, to minimise temperature fluctuations, and ensure high levels of energy efficiency. perfect control of individual comfort, whilst significantly ■ The two rotating compression cylinders, the low vibrations reducing energy consumption. and the low load imposed on the shaft ensure the compressor - PAM: the pulse amplitude modulation of the direct current offers the best possible reliability and a long and trouble-free controls the compressor under maximum load conditions service life. (start-up and peak load), which increases the voltage at a ■ Alltwo-cylinder rotary compressors with a brushless DC fixed frequency. The compressor runs at a high speed to inverter motor are equipped with crankcase heaters as quickly reach the desired temperature. standard. - PWM: the pulse width modulation of the direct current ■ A double protective screen soundproofs the compressor, controls the compressor at partial load conditions, further reducing the sound levels. adjusting the frequency at fixed voltage. The compressor speed is adjusted with precision, and the system offers an enhanced level of comfort (no fluctuations in temperature) in operating conditions with exceptional efficiency. ■ The compressor frequency is increased continuously up to the maximum level. This ensures there are no current peaks during the start-up phase, and provides a secure connection to a single-phase current supply, even for large capacity systems. The maximum operating current of the EREBATM He is less than 8.9 A (for systems up to 5 kW) and less than 25.6 A for larger systems (15 kW). The inverter warm-up speed makes soft starts unnecessary by ensuring maximum capacity immediately. CATALOGUE 2021 313 313