AIR-TO-WATER HEAT PUMPS – PACIFICA KWE
pacificaKWE
Air-to-water chillers and heat pumps
for mild | moderate climates
33-311 kW
37-274 kW
inverter
version
euro
version
Documentation & Features
Specifications table
Views & Dimensions
Controls
Documentation & Features
Commercial documentation
Available languages:
 |  |  |  |  |
inverter version
33-167 kW 37-184 kW
Chillers and heat pumps equipped with full inverter technology, integrating inverter compressors, electronic expansion valve, and variable-speed electronic fans for maximum energy savings and compliance with ErP 2021 regulations.
euro version
32-311 kW 38-274 kW
Chillers and heat pumps equipped with multiscroll compressor technology and electronic fans for significant energy savings and compliance with ErP 2021 regulations.
Adaptation and Environment
- Reduced refrigerant charge with low-GWP R-454B, minimizing CO₂ footprint (77% less GWP than R-410A and 31% less than R-32).
- Available with plate heat exchangers or with shell-and-tube heat exchangers (bodywork KWE-6).
- Standard condensing pressure control for year-round operation.
- This range integrates the compressors in a closed and insulated compartment from the air stream, offering versions with a hydraulic group and built-in buffer tank.
Energy Efficiency
- Very high efficiency at both partial and full loads, reducing operating costs in both the Euro version and the Inverter version.
- Partial and total heat recovery system from hot gases for domestic hot water (DHW).
- Freecooling water system for free cooling (bodywork KWE-6).
Specifications table
GENERAL CHARACTERISTICS
INVERTER
EURO
Refrigerant
R454B
✓
✓
Unit supplied with refrigerant charge
✓
✓
R410A or R452B refrigerants
●
●
Leak detection
●
●
Bodywork
Self-supporting chassis/cabinet in galvanized steel with an oven-cured thermosetting polyester paint finish
✓
✓
Customized color to suit the installation requirements
●
●
Closed lower sheet-metal compartment for compressors and refrigeration components
✓
✓
Insulation in the lower refrigeration compartment
●
●
Additional anti-vibration mounts
●
●
Compressors
Tandem multi-scroll technology
—
✓
Inverter technology
✓
—
Compressor anti-vibration mounts
✓
✓
Soft starter
—
●
Acoustic insulation jacket
●
●
High-performance original manufacturer acoustic insulation jacket
●
●
Expansion valves
Thermostatic expansion valves
—
●
Electronic expansion valves
✓
✓
VENTILATION
INVERTER
EURO
Outdoor fans
EC axial fans
✓
✓
AC axial fans
—
●
Curved outdoor fan nozzlesseries 2-5-61xx-62xx
✓
✓
Straight outdoor fan nozzlesseries 63xx
—
✓
AxiTop diffusers for axial fans
●
●
High-performance EC axial fans
●
●
EC radial plug fans
●
●
HEAT EXCHANGERS (*)
INVERTER
EURO
Coils
Cu tube and Al fin coils
✓
✓
Al / Al microchannel coils on cooling-only unitsversion R
●
●
Cu tube / polyurethane pre-coated Al fin coil
●
●
ALUCOAST: high-resistance Cu tubes / Al fins
●
●
BLYGOLD: Cu tubes / Al fins with Blygold coating
●
●
COPPERFIN: Cu tubes / Cu fins
●
●
Heat exchangers
Refrigerant-water heat exchanger with AISI 316L stainless-steel plates, copper-brazed and thermally insulated
✓
✓
Stainless-steel heat exchanger SS AISI 304 / SS AISI 316 / Sealix
●
●
Shell-and-tube heat exchangerseries 6
●
●
ENERGY (*)
INVERTER
EURO
Energy recovery
Partial recovery of condensation energy for domestic hot water (DHW)
●
●
Total recovery of condensation energy for domestic hot water (DHW)series 6
●
●
Pump in the condensation heat recovery circuit
●
●
Electric anti-icing heater in the DHW recovery plate heat exchanger
●
●
Free cooling
Integrated free cooling using an additional outdoor coil, external sensor and three-way valveseries 6
●
●
HYDRAULIC (*)
INVERTER
EURO
Pumps (KWE version P/H/J)
Single pump with standard available pressure (7-12 m.w.c.)
✓
✓
Single pump with high available pressure (15-20 m.w.c.)
●
●
Single pump with very high available pressure (25-30 m.w.c.)
●
●
Pump with variable-speed drive
●
●
Standby pump (standard, high and very high available pressure)
●
●
Electronic pump
●
●
Electronic standby pump
●
●
Hydraulic components
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 unit inlet and outlet for version S
●
●
Independent module with 200 / 375 / 725 litre buffer tank + electric heaters
●
●
INSTALLATION
INVERTER
EURO
Outdoor coil
Coil protection grille
●
●
Insulation
Thermal insulation on all cold metal lines (refrigerant or water)
●
●
Power supply
400 V / III ph / 50 Hz with neutral
✓
✓
400 V / III ph / 60 Hz
●
●
Other electrical voltages (ask about the available options)
●
●
Packaging
Packaging for maritime transport
●
●
CONTROL
INVERTER
EURO
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
✓
✓
Defrost
Defrost by cycle reversal using a 4-way valve
✓
✓
Additional control and safety components
Main switch in the electrical panel
✓
✓
Magneto-thermal protection 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 with phase-unbalance, overvoltage and undervoltage detection
●
●
Triple protection for the plate heat exchanger with a water flow switch and anti-freeze protection for water and refrigerant
✓
✓
Electrical energy meter
●
●
Electrical panel
Fully wired electrical panel with IP54 protection
✓
✓
Forced ventilation of the electrical panel
✓
✓
Electrical switchgear designed for high temperatures
✓
✓
Tropicalised electrical panel
●
●
Socket for general use
●
●
Electric anti-freeze heater in the electrical panel for low outdoor temperatures
●
●
Views & Dimensions
Series 2 S/P
Series 2 H/J
Series 5 S/P
Series 5 H/J
Series 61 S/P
Series 61 H
Series 62 S/P
Series 62 H
Series 63 S/P
Series 63 H
| S and P dimensions | Series 2 | Series 5 | Series 61 | Series 62 | Series 63 |
|---|---|---|---|---|---|
| L (mm) | 1415 | 2420 | 3515 | 4415 | 5340 |
| W (mm) | 1100 | 1100 | 1100 | 1100 | 1100 |
| H (mm) | 2345 | 2345 | 2020 | 2020 | 2295 |
| H dimensions | Series 2 | Series 5 | Series 61 | Series 62 | Series 63 |
|---|---|---|---|---|---|
| L (mm) | 1915 | 3020 | 4625 | 5525 | 6450 |
| W (mm) | 1100 | 1100 | 1100 | 1100 | 1100 |
| H (mm) | 2345 | 2345 | 2020 | 2020 | 2295 |
| J dimensions | Series 2 | Series 5 |
|---|---|---|
| L (mm) | 2165 | 3270 |
| W (mm) | 1100 | 1100 |
| H (mm) | 2345 | 2345 |
Controls
PACIFICA 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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