Unità multiscroll ad alta efficienza Evitec-H

EvitecH is Galletti’s new high efficiency multiscroll units equipped with R410A steam injection compressor. The  range  consists  of  10  air-water  models  available  as chiller  and  heat  pump,  with  cooling  capacities  from  50 to 180 kW. The main strongpoint of this series is the large operating field, both in terms of maximum hot water temperature (65°C  with  -11°C  of  external  air  temperature)  and  minimum air temperature at which the continuous operation is allowed (-20°C). The  range  allows  high  configurability  from  an  acoustic point  of  view,  having  a  wide  range  of  accessories  designed to reduce noise emissions. The advanced control, always present in the whole range, allows a continuous monitoring  of  the  operating  parameters,  advanced  adjustment logics, and connectivity. The  modular  structure  with  V  configuration  condensing coils is designed to optimize air-side heat exchange, to  ensure  structural  strength  with  a  reduced  footprint, and  to  maintain  maximum  accessibility  to  the  basic components. In addition to high efficiency in terms of nominal conditions (Eurovent A-class), in order to increase the efficiency at partial loads, the whole range consists of tandem solutions (2 compressors on a single refrigerant circuit).The  configuration  of  units  with  the  Hydro  Smart  Flow kit allows an increase of the efficiency and extends the working area of the cooling mode.

Available versions

• 10 models
• Heat pump
• Standard execution
• Low-noise execution

Main components

• Structure: the range is developed modularly, replicating the optimized structure of V-shaped coils and fans. The design ensures stability, robustness, even during the most critical phases and maximum accessibility to the components of each unit

• Hydro Smart Flow: the HSF kit (standard for sizes 52 and 62) is set up on the hydronic side of the machine and consists of a 4-way valve and a special kit. Hydro Smart Flow intervenes in the seasonal changeover, reversing the crossing direction of the water flow plates, consistently with that of the refrigerant. In this way, a counter-current heat exchange is always maintained, optimizing unit operation in the summer and winter seasons and extending the unit's operating range
• Upwind: EvitecH implements a new technology which allows, upon cycle inversion, to maintain the same direction of crossing of the coils by the refrigerant and an exchange with air always in counter-current. This advanced technology makes it possible to considerably reduce the risk of frost forming on the batteries
• Scroll compressors with vapor injection: the range consists of single and dual-circuit models in order to offer maximum redundancy. The possibility of dividing the load into many power steps and the use of tandem solutions guarantees maximum efficiency at partial loads and therefore greatly increases seasonal efficiency. The intercooled compression with vapor injection makes it possible to control the temperature at the end of the compression within the limits imposed by the compressor envelope even in the most unfavorable working conditions, which translates into one of the widest working ranges on the market
• 3-way valve: system which allows EvitecH heat pumps to be transformed into multi-purpose units capable both of responding to the needs of the air conditioning system and of producing, via the Galletti thermal accumulators of the TP and TN series, domestic hot water in priority. The switching of the valve is managed by the microprocessor on board the machine

• Class A in heat pump operating mode
• Production of hot water up to 65°C
• Operation at full load with external air temperatures down to -20 °C
• High effciency under part load conditions
• Possibility to configure low-noise versions
• Counterflow solutions in every operating mode