AIR-TO-WATER CHILLERS – MEDEA KWB
Chillers and Heat Pumps water
production up to 60ºC
125-600 kW 133-638 kW 
- Reduced charge of low-GWP HFO refrigerant R-1234ze minimizing CO₂ footprint (99.9% lower GWP than R-410A and 99.5% lower than R-32).
- Equipped with the latest generation of hermetic scroll DSG compressors designed in tandem with plate heat exchangers and optionally with the latest generation of multitubular heat exchangers.
- Wide operating range of the outdoor temperature equipment.
- Incorporate the latest generation of AQUAMATIX Siemens modular programmable electronic controllers.
- High energy efficiency at partial load exceeding the seasonal efficiency requirements of the Ecodesign Regulation 2021 (EU 2016/2281) with up to 17% energy savings.
- Electronic fans and electronic expansion valve as standard for minimum energy consumption and electronic condensation control.
Optional modular version (series 1) for modular assembly with easy and fast interconnection, which makes this an effective and simple solution for installations where compact, light, easy to transport and high power equipment is required.
In addition, they offer an important solution for the continuous operation of the equipment without interruption, thanks to their independence of electrical connection, since the failure of one of the modules can be easily repaired without having to stop the operation of the complete modular installation.
Wide range of power due to its modulation, each module reaching a cooling capacity of 124 kW and with the possibility of a maximum of 8 modules.
System that uses waste heat from air condensation to heat water for both DHW and industrial applications.
- Recovery of up to 100% of heat energy.
- Free production of high temperature hot water.
- Reduced electricity consumption of the heating system.
- Reduction of fossil fuels and CO₂ emissions with efficient and renewable solution.
Integrated Freecooling
New optional additional free-cooling coils integrated in the unit in the same V’s of the cooling circuit, which allows to take advantage of the energy of the outside air when the external conditions are favorable to carry out the energy exchange with the water of the installation.
Freecooling coils integrated in the same V’s of the refrigeration circuit.
Serie 1 S/P
Serie 2 S/P
Serie 4 S/P
Serie 6 S/P
Serie 1 H
Serie 1 B
Serie 1 B: Combination of options requiring S/P chassis lengthening
Serie 2 H
Serie 4 H
Serie 6 H
| Standard equipment dimensions (mm) | |||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|
| Serie 1 | Serie 2 | Serie 4 | Serie 6 | ||||||||
| Chassis | S/P | B | B* | H | H* | S/P | H | S/P | H | S/P | H |
| L | 2190 | 2640 | 2640 | 3830 | 3830 | 2980 | 4305 | 5630 | 6955 | 8280 | 9605 |
| A | 1100 | 1100 | 1300 | 1100 | 1300 | 2100 | 2100 | 2100 | 2100 | 2100 | 2100 |
| H | 2600 | 2600 | 2600 | 2600 | 2600 | 2600 | 2600 | 2600 | 2600 | 2600 | 2600 |
*Special width for integrated freecooling
HELVETIA includes the AQUAMATIX programmable electronic control, the Climatix HMI user terminal and the RS485 communication interface for ModBus TCP/IP and BACnet IP communication.
Technical Documentation
Adaptation and Versatility
High-performance equipment with plate heat exchangers which enable a flexible configuration for centralised facilities, with closed water and geothermal loop
Versions available with a hydraulic unit
Adaptability to the facility offering a wide range of models
Maximum accessibility and easy maintenance thanks to removable panels
MEDEA MAXIMA with R-134a refrigerant to provide water at high temperatures of up to +78ºC
Energy efficiency
High energy efficiency in partial and full load, reducing operating costs
Complies with ErP 2021
Tandem multiscroll to improve seasonal energy efficiency
Units available with optional Inverter compressors for maximum energy efficiency
Electronic expansion valve for minimal energy consumption
Equipment with a hydraulic unit can include high-performance electronic pumps
KEYTER CATALOGUE
More details about this product
The brand new Keyter Catalogue is out now and free available. In this year’s edition you will discover
our complete range of products and find more technical specifications about the Keyter units.
Hydraulic versions
KZV – Standard version (S)
Equipment with no hydraulic unit.
The KZV units feature triple protection for the plate heat exchanger. The series production version includes a flow switch, antifreeze protection for water and antifreeze protection for freon.
KZV – Version with hydraulic unit (P)
Hydraulic unit composed of a circulating pump suitable for water or glycol water to 0°C, expansion vessel, bleed and stop valves, pressure gauges and a flow switch.
For temperatures lower than 0°C, the low temperature kit is required, which requires a replacement of the pump and adds electrical resistors to the hydraulic elements for work with water at temperatures as low as -10°C.
The hydraulic unit is built into the chassis of the standard version for all units up to the 2090 model. For higher models, the hydraulic unit is provided in an independent module.
Controls
MEDEA equipment includes the AQUAMANAGER programmable electronic control, specifically developed
for the management of air-to-water and water-to-water equipment with the pGD1 user and maintenance terminal.
CHILLERS & HEAT PUMPS
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