AIR-TO-WATER CHILLERS – ATLANTIA KWA | KWM
atlantiaKWA | KWM
Multiscroll air-to-water chillers
185-648 kW
Documentation & Features
Specifications table
Views & Dimensions
Controls
Documentation & Features
Commercial documentation
Available languages:
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Plate heat exchanger (KWA)
Shell and tube heat exchanger (KWM)
Partial and total heat recovery system from hot gases for domestic hot water (DHW)
Water Free Cooling System for Free Cooling
Adaptation and Environment
- Reduced refrigerant charge with low GWP R-454B, minimizing the CO₂ footprint (77% lower GWP than R-410A and 31% lower than R-32).
- Series condensing pressure control for year-round operation.
- Adaptability to the installation with a wide range of models.
- Maximum accessibility and easy maintenance through removable panels.
- Versions with hydraulic group and integrated buffer tank to reduce compressor start-stop frequency.
Energy Efficiency
- High energy efficiency at partial and full loads, reducing operating costs.
- Tandem multiscroll for improved seasonal energy efficiency.
- Electronic fans and electronic expansion valve for minimum energy consumption.
- Units with a hydraulic group can incorporate high-performance electronic pumps.
Specifications table
General characteristics
KWA
KWM
Refrigerant
R454B
✓
✓
Equipment with refrigerant charge
✓
✓
R452B or R410A refrigerants
●
●
Leak detection
●
●
Bodywork
Self-supporting chassis/cabinet in galvanized steel with a polyester powder coating cured in an oven
✓
✓
Customized color to suit the needs of the installation
●
●
Equipment without panels
✓
✓
Enclosed compressor compartment (1)
●
●
Perimeter enclosure of the unit + enclosed compressor compartment (1)
●
●
Compressor compartment panel insulation
●
●
Lower hydraulic section enclosure (H version)
●
●
Upper hydraulic section enclosure (H version)
●
●
Insulation of perimeter enclosure panels and hydraulic section panels (H version)
●
●
Anti-vibration supplements
●
●
Compressors
Tandem Multiscroll technology
✓
✓
Compressor anti-vibration mounts
✓
✓
Soft starter
●
●
Acoustic insulation jacket
●
●
Manufacturer's original high-performance acoustic insulation jacket
●
●
Expansion valves
Electronic expansion valves
✓
✓
Thermostatic expansion valves (only available with R410A)
●
●
Fans
KWA
KWM
Outdoor fans
AC technology axial fans with variable speed drive
✓
✓
AC technology axial fans
●
–
Condensing pressure control
✓
✓
EC technology axial fans
●
●
Curved external nozzles
✓
✓
Internal nozzles (only available with EC fans)
●
●
AxiTop diffusers for axial fans (only available with EC fans)
●
●
High-performance EC axial fans
●
●
EC plug-fan radial fans
●
●
Heat exchangers
KWA
KWM
Coils
Cu tube and Al fin coils
✓
✓
Al / Al microchannel coils
●
●
Cu tube bundle / polyurethane pre-lacquered Al fins
●
●
ALUCOAST: high-resistance Cu tubes / Al fins
●
●
BLYGOLD: Cu tubes / Al fins with Blygold coating
●
●
COPPERFIN: Cu tubes / Cu fins
●
●
Heat exchangers
Freon-water heat exchanger, AISI 316L stainless steel plates, copper-brazed and thermally insulated
✓
–
Shell-and-tube heat exchanger
–
✓
Stainless steel heat exchanger SS AISI 304 / SS AISI 316 / Sealix
●
–
Energy (2)
KWA
KWM
Energy recovery
Partial or total condensation energy recovery for DHW (* total recovery in KWA is only possible in series 2) (** Heat exchanger in the total recovery circuit: plate type in KWA and shell-and-tube in KWM)
●
●
Pump in the condensation heat recovery circuit
●
●
Electric anti-icing heater in the plate heat exchanger for domestic hot water (DHW) recovery
●
●
Free-cooling
Integrated free-cooling using additional V-shaped coil(s), external probe and three-way valve
●
●
Hydraulic (2)
KWA
KWM
Pumps (P/H)
Single pump, normal available pressure (7-12 mH₂O)
✓
✓
Single pump with high pressure available (15-20 mH₂O)
●
●
Single pump, very high available pressure (25-30 mH₂O)
●
●
Pump with variable speed drive
●
●
Backup pump (standard pressure, high pressure, and very high pressure available)
●
●
Electronic pump
●
●
Electronic backup pump
●
●
Hydraulic elements
Low temperature kit for operation with water outlet temperature < 0 ºC
●
●
Low outdoor temperature kit
●
●
Flexible water inlet and outlet connections
●
●
Water filter
●
●
Installation of pressure gauges at the inlet and outlet of the equipment for S version
●
●
Independent module with available buffer tank of 200 liters / 375 liters / 725 liters + electric heaters
●
●
Installation
KWA
KWM
Protection grilles
Coil protection grille
●
●
Bird protection grille at the base of the unit
●
●
Insulation
Thermal insulation in all cold metal lines (refrigerant or water)
●
●
Electrical supply
400 V / III ph / 50 Hz without neutral
✓
✓
400 V / III ph / 60 Hz
●
●
Other electrical voltages (see different options available)
●
●
Packaging
Packaging for maritime transport
●
●
Control
KWA
KWM
Electronic control and communication
Programmable electronic control AQUAMATIX
✓
✓
Climatix HMI user terminal for AQUAMATIX control
✓
✓
RS485 communication interface for ModBus communication
✓
✓
Modbus TCP/IP and BACnet IP communication
✓
✓
Additional control and safety elements
Main switch in electrical panel
✓
✓
Magneto-thermal protections for compressors, fans and pumps
✓
✓
Differential switches
●
●
Low pressure switch for pump protection
●
●
PREMIUM phase control relay, with phase failure detection and direction of rotation protection
✓
✓
EXCELLENT phase monitoring relay, adds phase unbalance, overvoltage and undervoltage detection
●
●
Triple protection for the plate heat exchanger with a water flow switch and anti-ice protections for both water and refrigerant
✓
✓
Energy meter
●
●
Electrical panel
Fully wired electrical panel, with IP54 protection
✓
✓
Forced ventilation of the electrical panel
✓
✓
Design of electrical switchgear for high temperatures
✓
✓
Tropicalised electrical panel
●
●
Socket for common use
●
●
Antifreeze electrical resistor in electrical panel for low outdoor temperatures
●
●
Views & Dimensions
Series 2 S/P
Series 2 H
Series 3 S/P
Series 3 H
Series 4 S/P
Series 4 H
| Dimensions (mm) | Series 2 | Series 3 | Series 4 | |||
|---|---|---|---|---|---|---|
| S/P | H | S/P | H | S/P | H | |
| L (mm) | 2980 | 4305 | 4350 | 5630 | 5630 | 6955 |
| W (mm) | 2100 | 2100 | 2100 | 2100 | 2100 | 2100 |
| H (mm) | 2480 | 2480 | 2480 | 2480 | 2480 | 2480 |
Controls
ATLANTIA includes the programmable electronic control AQUAMATIX and the Climatix HMI user terminal.
It is compatible with optional RS485 card for Modbus communication and BACnet IP communication system.
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