GALLETTI MPE - Водяной холодильный агрегат

Performa (MPE ) series chillers and heat pumps are designed for outdoor installation in residential and commercial applications.‎ The range uses the refrigerant R410A which ensures high performance with low energy consumption and consists of 21 models in chiller and heat pump versions, with cooling capacities from 4 to 45 kW and heating capacities from 5 to 53 kW.‎ The finned pack heat exchangers have been optimised for R410A and use 8 mm copper tubes that allow better heat exchange and silent operation of the fans.‎ Their generous sizing guarantees the production of chilled water even with outside air temperatures of 51°C and ensures an average summer range efficiency (EER) of 2.‎95 and winter range efficiency (COP) of 3.‎25 corresponding to Eurovent Energy Efficiency Class A.‎ MPE - Technical characteristics EFFICIENCY IN EVERY CONDITION The actual thermal load of an air-conditioning system is 90% of the time less than 60% of the nominal load; the MPE T version, a single-circuit dual compressor, responds to this need by offering high efficiency in operation at part loads (ESEER>4) and also guarantees the unit's operation at the limit temperature.‎ Under these conditions, in fact, the microprocessor control activates partial load operation, doubling the condensing surface available to the single compressor.‎ The fans, axial type with airfoil blades and 6 and 8 pole motors with electronic speed control (optional), guarantee silent operation and optimal functioning of the unit in all conditions.‎ R410A The Performa (MPE) line of chillers and heat pumps use R410A, an ecological refrigerant fluid that does not contain chlorine atoms in its molecule and therefore does not contribute to damaging the stratospheric ozone layer in the event of dispersion.‎ R410A is non-toxic, non-flammable, and has thermodynamic characteristics that allow it to reach energy efficiency levels of absolute excellence.‎ AUTOADAPTIVE The electronic control allows the setpoint to be automatically adjusted according to the outside temperature to reduce consumption and extend the working range.‎ Operation in systems with low water content is possible even without the use of a storage tank thanks to the automatic regulation that limits the number of compressor starts, thus increasing its lifespan.‎ SMART DEFROST SYSTEM The exclusive defrosting system (optional with advanced controller) is able to correctly detect the decay in performance of the external heat exchanger due to the formation of ice and minimises the process time compared to regular operation of the unit.‎ BEYOND CONVENTIONAL WORKING LIMITS The finned pack heat exchangers have been optimised for R410A and use 8 mm copper tubes which allow better heat exchange and silent operation of the fans.‎ They have an average summer range efficiency (EER) of 2.‎95 and winter range efficiency (COP) of 3.‎25 corresponding to Eurovent Energy Efficiency Class A.‎ Their generous sizing guarantees the production of chilled water even at outside air temperatures of 51°C and ensures an average summer range efficiency (EER) of 2.‎95 and winter range efficiency (COP) of 3.‎25 corresponding to Eurovent Energy Efficiency Class A.‎ EFFICIENCY IN EVERY CONDITION The actual thermal load of an air-conditioning system is 90% of the time less than 60% of the nominal load; the MPE T version, a single-circuit dual compressor, responds to this need by offering high efficiency in operation at part loads (ESEER>4) and also guarantees the unit's operation at the limit temperature.‎ Under these conditions, in fact, the microprocessor control activates partial load operation, doubling the condensing surface available to the single compressor.‎ The fans, axial type with airfoil blades and 6- and 8-pole motors with electronic speed control (optional), guarantee silent operation and optimal operation of the unit in all conditions.‎ AUTOADAPTIVE The electronic control automatically adjusts the setpoint according to the outside temperature to reduce consumption and extend the working range.‎ Operation in systems with a low water content is possible even without the use of a storage tank thanks to the automatic regulation that limits the number of compressor starts, thus increasing its lifespan.‎ STRUCTURE Carpentry in galvanised and painted sheet metal (RAL9002) for aesthetic appeal and effective resistance to corrosive agents.‎ Fastening systems are made of non-oxidisable carbon steel materials with passivation surface treatments.‎ The compressor compartment is completely enclosed and accessible on 3 sides thanks to easily removable panels to simplify all maintenance and/or control operations.‎ On request, acoustic insulation can further reduce the unit's noise emissions.‎ CUSTOMISED HYDRONIC KITS High-pressure pump made entirely of stainless steel already set up for use with mixtures of water and glycol ethylene glycol up to 35% and equipped with internal thermal protection.‎ Housed in the compressor compartment, it is easily accessible thanks to the removable perimeter panels.‎ Expansion vessel Safety valve Filling cock (included) Automatic bleed valve Water differential pressure switch and outlet water temperature probe with antifreeze thermostat function Mechanical Y filter supplied as standard on all versions to protect the evaporator (supplied) REFRIGERANT CIRCUIT Scroll type compressor (rotary up to 7 kW) housed in an acoustically insulated compartment Brazed plate heat exchanger made of stainless steel and optimised for use with R410A Finned pack condenser made of 8 mm copper tube and aluminium fins and characterised by large heat exchange surfaces Filter drier Flow indicator light with humidity indicator Thermostatic valve with external equalisation and integrated MOP function Reverse cycle valve (MPE H) One-way valves (MPE H) Liquid receiver (MPE H) High and low pressure switches Safety valve Schrader valves for control and/or maintenance Refrigerant pressure gauges (optional) MOTOR-FAN UNIT Electric fan with 6/8-pole external rotor motor directly coupled to the axial fan, with internal thermal protection on the windings, complete with accident-prevention grille and dedicated support structure.‎ The fan is housed in a special nozzle with a profile that optimises aeraulic performance.‎ The use of finned pack heat exchangers with an 8 mm diameter tube reduces air-side pressure drops, significantly improving the acoustic levels of the units.‎ The pressure condensing control continuously regulates the speed of the fans automatically further limiting the acoustic emission of the unit in night operation and at partial loads.‎ FINNED-PACK HEAT EXCHANGER In 8 mm diameter copper tube and aluminium fins, generously dimensioned.‎ The special design criterion of the exchangers makes it possible to speed up the defrosting phases in the heat pump versions with evident benefits in terms of integrated efficiency over the entire cycle.‎ ELECTRONIC CONTROL WITH MICROPROCESSOR The electronic control allows complete management of the MPE units and is easily accessible through a polycarbonate door, with IP65 protection rating.‎ The self-adaptive logic allows the unit to operate even with low water content in the system and avoids the use of inertial storage.‎ The external air temperature reading allows the set point to be automatically modified to adapt it to the external load conditions or keep the unit running even in the coldest winter conditions.‎ The basic controller is complete with MODBUS protocol and allows immediate connection to ERGO networks.‎ Main functions: Control over water temperature at evaporator inlet Defrost management (MPE-H) Fan speed control (optional) Full alarm management Dynamic setpoint management according to air temperature Connectable to RS485 serial line for supervision/tele-assistance Possibility of connecting an external terminal that replicates control functions Controlled devices Compressor Fans Cycle reversing valve (MPE-H) Water circulation pump Frost resistors (optional) Alarm signalling relays On request it is possible to install the advanced controller that realises: LAN networks Smart Defrost System ELECTRICAL PANEL Electrical panel built and wired in accordance with EEC directive 73/23, directive 89/336 on electromagnetic compatibility and related standards.‎ Made of sheet metal, it is further protected by the machine's perimeter panels.‎ OPTIONS built-in hydronic kits Condensation control Silenced execution Refrigerant pressure gauges Antifreeze resistors on hydraulic circuit Electronic thermostatic valve 25% heat recovery (chiller) Special coils (hydrophilic treatment, copper-copper, cataphoresis, anti-corrosion) AVAILABLE ACCESSORIES Remote control panels Basic vibration dampers Metal protection grids for batteries