Water Cooled Direct Expansion (DX DW)
i-NEXT DW
Ductable close control units air-conditioners for vertical installation and cooling only, with optional heating by means of heating element, optional humidifer and dehumidifier for precise temperature and humidity control. Particularly suitable for precision air conditioning in servers and IT rooms and all technological applications in general. The INVERTER compressor allows the cooling capacity modulation according to the real internal load, particularly efficient at the partial loads, optimizing the power absorbed and eliminating the stating current. Units fitted with electronic expansion valve and EC INVERTER fans, upflow or downflow.
Versions
- UNDER - Downflow air supply
- OVER - Upflow air supply
Features
- Unit for installing inside or outside the room to be air-conditioned.
- Last generation of scroll or rotary BLDC INVERTER compressor, for high efficiency.
- EW EC INVERTER fans with electronic commutation in order to maximize the energy saving and reducing the noise emissions. The fan section is contained within the machine and includes: centrifugal fans with backward curved blades with wing profile, single suction and without scroll housings (Plug-fans), directly coupled to external rotor EC electric motor brushless type with integrated electronic commutated system and continuous variation of the rotation speed.
- Maximum resistance to rust thanks to galvanised sheet metal structures and panels with powder-coated paint finish. The panels are lined with sound-insulating material to limit noise levels.
- The reliability and functionality of the compressor and all the other parts are guaranteed by partners who are world leaders in their sector.
- Standard COARSE 60% (ISO EN 16890) filtering section, Optional ePM10 50% (ISO EN 16890) - ePM1 85% (ISO EN 16890) , to CEN-EN 779 with average degree of separation 90.1% ASHRAE. The filter is self-extinguishing.
- The microprocessor controls the compressor activation times with FIFO logic, thereby regulating the cooling capacity; it also controls the operating alarms with the possibility of interfacing to supervisor and remote-servicing systems.
- Switchboard to IEC 204-1/EN60204-1
- Refrigerant circuit consisting of electronic expansion valve that allows high performance and system efficiency thanks to a timely and accurate response to changes in temperature and pressure, sight glass, filter dryer on liquid line, pressure transducers with indication, control and protection functions, on low and high refrigerant pressure, high pressure safety switch with manual reset, liquid receiver with accessories.
- Capillary Pre and After sales service.
Accessories
- Remote user terminal
- Electric heating coil
- Humidifier
- Vibration isolation frame with rubber mountings
- Air distribution plenum
- Sound absorber plenum
- Interface electronic board
t-NEXT DW
Ductable close control air-conditioners for vertical installation and cooling only, with optional heating by means of heating element, optional humidifier and dehumidifier for precise temperature and humidity control. Particularly suitable for precision air conditioning in servers and IT rooms and all technological applications in general. Units fitted with EC INVERTER fans, upflow or downflow. External air condenser.
Versions
- UNDER - Downflow air supply
- OVER - Upflow air supply
Features
- Unit for installing inside or outside the room to be air-conditioned.
- Maximum resistance to rust thanks to galvanised sheet metal structures and panels with powder-coated paint finish. The panels are lined with sound-insulating material to limit noise levels.
- The reliability and functionality of the compressor and all the other parts are guaranteed by partners who are world leaders in their sector.
- NEW EC INVERTER fans with electronic commutation in order to maximize the energy saving and reducing the noise emissions. The fan section is contained within the machine and includes: centrifugal fans with backward curved blades with wing profile, single suction and without scroll housings (Plug-fans), directly coupled to external rotor EC electric motor brushless type with integrated electronic commutated system and continuous variation of the rotation speed.
- Standard COARSE 60% (ISO EN 16890) filtering section, Optional ePM10 50% (ISO EN 16890) - ePM1 85% (ISO EN 16890) , to CEN-EN 779 with average degree of separation 90.1% ASHRAE. The filter is self-extinguishing.
- The microprocessor controls the compressor activation times with FIFO logic, thereby regulating the cooling capacity; it also controls the operating alarms with the possibility of interfacing to supervisor and remote-servicing systems.
- Refrigerant circuit consisting of an electronic expansion valve that allows high performance and system efficiency thanks to a timely and accurate response to changes in temperature and pressure; sight glass; filter dryer on liquid line; pressure transducers with indication, control and protection functions, on low and high refrigerant pressure; high pressure safety switch with manual reset; liquid receiver with accessories.
- Switchboard to IEC 204-1/EN60204-1
- Capillary Pre and After sales service.
Accessories
- Remote user terminal
- Electric heating coil
- Humidifier
- Vibration isolation frame with rubber mountings
- Air distribution plenum
- Sound absorber plenum
- Interface electronic board
x-NEXT3 DW
x-NEXT3: the new DX room air conditioner for Data Centers. The complete solution is made of x-NEXT3 perimeter unit, available with VSD or on/off compressor, and GR2 & DR2 outdoor heat rejection units, the remote condenser and dry-cooler respectively. The range covers a cooling capacity from 30 to 140 kW, with R410A refrigerant.
x-NEXT3 guarantees the highest quality standards, thanks to the adoption of specific Japanese design techniques.
Combining high performing proprietary components and innovative solutions, the product achieves best-in-class efficiency and very reduced footprint at the same time. x-NEXT3 represents the ideal solution for Enterprise DC, Colocation DC, battery rooms and UPS rooms.
Range composition
The x-NEXT3 range has 3 compact modules, available in 10 sizes with variable speed compressor (x-NEXT3-i) and 14 sizes with on/off compressor (x-NEXT3-f).
The new product family introduces new technologies developed by MEHITS that guarantee market-leading performance:
- Proprietary inverter compressors for the variable speed range, also in hybrid tandem configuration (1+i)
- On/off on/off compressors for the fixed speed range, also in tandem configuration
- Innovative MCHX evaporator coil EC plug-fans, with proprietary designed impeller
- COARSE 60% filters, easily accessible
- EVOLUTION+ controller with Compact keyboard or, as options, Touch keyboard or Kiplink
- GR2 and DR2 features MCHX or Cu/Al coils, and AC or EC fans, and are available in std or silenced version.
Versions
- DW: Combination with dry-cooler
- DW DF: Dual-coil system, combination with dry-cooler + chiller
- DW FC: Free-cooling system, combination with dry-cooler
Features
- Best-in-class EER
- Very compact footprint
- New technologies: Proprietary fan + microchannel coil
- Accessories: advanced HMI, low temperature kit, fast restart
- Flexibility: 4 supply/return air configurations, 5 versions
Accessories
- The basic unit features a rich configuration: compressor acoustic insulation, fan section grilles, dirty filter sensor, LAN functions.
- To meet even the more stringent datacenter requirements, the unit can be widely configured with additional options:
- Low temperature kit (down to -40 °C)
- Additional liquid receiver for long lines (up to 100m)
- Fast restart (UPS included)
- Plenums and dampers
- Dual power supply
- Advanced HMI (Touch screen display, KIPlink)