Galletti EvitecH

EvitecH heat pumps and are designed for heating or cooling the water to be used in air-conditioning systems for residential, commercial or industrial use. The execution with injection steam compressors (EVI) guarantees the production of hot water at high temperatures even in very hard outdoor conditions (outdoor air temperature down to -20°C)

Advantages

• Class A in heat pump operating mode
• Production of hot water up to 65°
• High efficiency under part load conditions
• Full load operation up to -20°C outside air temperature
• Possibility to configure low-noise versions
• Counterflow solutions in every operating mode

• Structure
  The range, starting from size 72, is designed modularly, replicating the optimized structure ofV configuration condensing coils and fans. Its design ensures stability, sturdiness even during the most critical phases (such as transportation), and maximum accessibility to components in every unit.
• Hydro smart flow
  The HSF kit (standard for models 52 and 62) is placed on the unit’s hydronic side and consists of a 4-way valve and a kit. Hydro Smart Flow, which is activated at the time of seasonal changeover, reverses the direction of the water fiow over the plates to be consistent with the fiow of the refrigerant. In this manner heat exchange always occurs in counterfiow, this optimizing the unit’s operation in the summer and winter seasons and extending the unit’s operating range
• Upwind
  In standard or advanced version, it enables the complete control of the units. It can be easily accessed through a polycarbonate flap with IP 65 protection rating. The electronic control system allows the setpoint to be adjusted automatically according to the outdoor temperature in order to reduce consumption and broaden the working temperature range. The advanced version makes it possible to construct LAN networks for the parallel control of 4 units and the management of BACNET and LON communication protocols, as well as the modulation of the pump assembly, of the Smart Defrost System.

• Scroll compressors with vapour injection
  The range consists of single and dual-circuit models in order to offer maximum redundancy. The distribution of load in multiple power steps and the use of tandem solutions (2 compressors on a single circuit) ensures maximum efficiency at partial loads and therefore greatly increases seasonal efficiency. lntercooled compression with steam injection allows a better control of the end-compression temperature, keeping it within the limits imposed by the compressor envelope, even in the most unfavorable working conditions (low evaporation pressures and high compression pressures), this results in one of the largest operating field in the market.
• 3-Way valve
  This is a smart kit able to convert EvitecH heat pumps in multifunction units in order to fulfill every necessity of the hydraulic airconditioning plant. It allows domestic hot water priority production thanks to Galletti thermal accumulators of the TP or TN series. The switching of the valve is managed by the on-board microprocessor control of the unit.

The models are completely configurable by selecting the version and the options. An example of configuration is shown below.

Versions with reversible heat pump

1 – Expansion Valve
      0      Mechanical
      A      Electronic

2 – Pump and Accessories
      0      Absent
      1      LP pump + expansion vessel
      2      LP run and standby double pump + expansion vessel
      3      HP pump + expansion vessel
      4      HP run and standby double pump + expansion vessel
      A     LP inverter pump + expansion vessel
      B      LP run and standby double inverter pump + expansion vessel
      C     HP inverter pump + expansion vessel
      D      HP run and standby double inverter pump + expansion vessel

3 – Water Buffer Tank
      0      Absent
      H      Present+ Hydro smart flow
      S      Selected

4 – Partial Heat Recovery (the condensation control must be added)
      0      Absent
      D      Desuperheater with pump contact (recovery 25%)

5 – Air Flow Modulation
      0      Absent
      C      Condensation control by phase-cut fans
      E      Condensation control with EC fans

6 – Antifreeze Kit
      0      Absent
      E      Plate exchanger
      P      Plate exchanger and water pump
      S      Plate exchanger, water pump and inertial tank

7 – Acoustic Insulation
      0      Absent
      1     Compressor sound blanket and compressor compartment sound proofing
      2      Fans noise reduction (AXITOP
      3      Fans noise reduction (AXITOP) + compressor sound blanket + compartment acoustic insulation

8 – Refrigerant Pipework Accessories
      0      Absent
      M      Refrigerant pressure gauges

9 – Remote Control
      0      Absent
      2      Output RS485 (Modbus or Carel protocol)
      B      BACNET IP/ PCOWEB serial board
      F      BACNET MS/TP / PCONET serial board
      G      BACNET IP/ PCOWEB serial board+ supervision software Gweb
      L      LON FTT 10 serial card
      S      Remote simplified user panel
      T      Touch screen remote user panel
      X      Remote user panel for advanced controller

10 – Special Coils / Protective Treatments
      0      Standard
      C      Cataphoresis
      I       Hydrophilic
      P      Fins pre-coated with epoxy paint
      R      Copper-copper

11 – Anti Vibration Shock Mounts
      0      Absent
      G      Rubber anti vibration shock mounts
      M      Spring anti vibration shock mounts

12 – – Coil Protection Grill
      0      Absent
      F       Outdoor finned coil heat exchanger protection filters
      G       Selected

13 – Onboard Controller
      1      Advanced
      2      Advanced + touchscreen user panel + USB

A      3 way valve for DHW production
B      Hydro smart flow (water tank not allowed)
C      Pair of couplings Victaulic
D      ON/OFF status of the compressors
E      Remote control for step capacity limit

F      Configurable digital alarm board
G      Soft starter
H      Power factor capacitors
I      Filter isolation valves kit (solenoid valve and isolation valve)
M      0-10 V signal for external user pump control (on-board pump excluded)
N     Compressor tandem/trio isolation valves
O      Anti-intrusion grille