- Natural refrigerant
- Semi-hermetic reciprocating compressors
- Inverter driven compressors
- High efficiency asymmetric evaporators
- Microchannel aluminum air condenser
- EC air condenser fans for precise condensing control
- Electronic expansion valve
- Innovative technical cooling solution for high energy efficiency
AIR COOLED CHILLERS
Air cooled chillers are used for indirect cooling for air conditioning of buildings, industrial processes, logistics centers for food retail, precision cooling of data centers. Heat transfer fluid can be water, mixture of water and ethylene/propylene glycol or some other secondary heat transfer fluid.
Air-water chiller is packaged in a single housing and all the components of the refrigerant circuit are built into the unit. Thus, chillers is compact and easy to install on the site. Refrigerant is propane (R290), which due to its excellent thermodynamic properties allows the use of the chiller in the temperature range from -35 to 20 °C. A microprocessor controls the operation of the unit in combination with optimized parameters in order to achieve as high efficiency as possible.
HOUSING
- Housing made of powder-coated galvanized sheet metal
- Screws, nuts and rivets made of stainless steel
- Guard grille at the outlet from the axial fan
- Panels on compressor and hydraulic space with locks
ELECTRICAL PART
- Emergency stop mushroom pushbutton with CES key
- Phase failure monitoring relay
- Electrical cables labeling in the unit according to the electrical scheme
- Electrical cables for outdoor installation UV resistant
- Time relay for automatic reset of chiller in case of power failure
- Main switch on the electrical cabinet
- Cable clamp rail for power supply cable
- Control transformer 230/230 V and transformer housing earthing
REFRIGERATION CIRCUIT COMPONENTS
- Compressor with 2 rotalock valves, oil crankshaft heater, oil control glass
- Motor windings thermally protection and electronic module
- HP pressure switch is connected to the compressor before the rotalock valve
- Vibraflex for compressors with 2 or 4 cylinders
- Check valve in the discharge pipe
- Service ball valve before filter drier, filter drier and sight glass
- Service Schrader valve on LP and HP side
- Subcooler for efficiency increase of the refrigeration circuit
- Thermal insulation of the refrigeration circuit low pressure side
- Safety valve on HP and LP side
- Electronic expansion valve with safety function of excessively high evaporation pressure
HYDRAULIC CIRCUIT COMPONENTS
- Pipes up to 2” made of copper and flare connection, above DN 50 made of stainless steel and flange connection
- Pipe connections outside of the housing for easier connection to the system
- Automatic air vent valve mounted on the closing valve
- Drain valves on lowest positions
- Safety valve 6 or 10 bar
- Standard thermal insulation of 19 mm
- Optional Y-strainer installed on the inlet pipe
- Optional AC/EC Primary pump
- Optional Buffer tank or hydraulic switch
- Manometer 0 – 10 bar (standard equipment with pump or buffer)
- Optional serial heat recovery and desuperheater
SAFETY
All chillers are designed in accordance with the highest safety standards and follows NORM EN378 for refrigerants from group A3.
ECOLOGY
Natural refrigerant: propane – R290.
It belongs to the group of hydrocarbons with GWP = 3 which is completely
exempted from the restrictions prescribed by the EU F-gas directive.
ENERGY EFFICENCY
Thanks to the ideal thermodynamic characteristics of the R290 refrigerant, and the optimal selection of the key components of the refrigeration circuit, the chillers have high energy efficiency and meet the requirements of ECODESIGN REGULATIONS.
QUALITY PROGRAM
- Testing units according to HRN EN 14511
- ISO 9001:2015
- Modul A2 – Monitoring of Final Assessment according to directive 2014/68/EU
