COMPACT

Commercial compact chillers

COMPACT units are high-efficiency, air-cooled water chillers with a compact design. They cover a range of small to medium cooling capacities and are intended for outdoor installation.

The compressor is a semi-hermetic reciprocating type, controlled by a frequency inverter that enables soft starting and continuous speed control for precise cooling capacity regulation.

COMPACT configurations with two refrigeration circuits are equipped with a shared dual plate heat exchanger (SWEP True Dual technology), enabling both refrigeration circuits to connect to the hydraulic circuit through a single plate evaporator. This design ensures compactness, maximizes heat transfer efficiency, and reduces the required refrigerant charge.

The air condenser is of microchannel aluminum design. Axial fans with EC motors allow variable speed operation, achieving exceptional energy efficiency.

Each COMPACT unit is factory tested and supplied pre-charged with refrigerant and oil. Conformity assessment is performed in accordance with the European Pressure Equipment Directive (PED) 2014/68/EU. The unit meets all applicable safety and environmental requirements.

Number of refrigeration circuits*: 1 or 2

*Number of refrigeration circuits equals the number of compressors

Number of air heat exchangers (condensers): 4

Unit dimensions:

  • Length without connections: 3328 mm (depending on configuration)
  • Width: 1500 mm
  • Height: 2255 mm

Cooling capacity:

Number of refrigeration circuits*: 1 or 2

*Number of refrigeration circuits equals the number of compressors

Number of air heat exchangers (condensers): 4

Unit dimensions:

  • Length without connections: 3328 mm (depending on configuration)
  • Width: 1800 mm
  • Height: 2594 mm

Cooling capacity:

GENERAL

  • Powder-coated galvanized steel casing, corrosion and weather resistant, standard color RAL 7035
  • Removable casing panels for easy service and maintenance
  • Anti-vibration mounts
  • Compressor compartment housed in a separate protective enclosure
  • Pipe insulation to prevent condensation
  • Safety strategy – choice between permanent ventilation of the compressor compartment or refrigerant leak detector combined with ATEX fan

ELECTRICAL

  • Main power switch and phase monitoring relay
  • Electrical protection for all components
  • Microprocessor controller for full unit operation supervision
  • Electronic expansion valve for precise refrigerant flow control
  • Communication protocols: Modbus TCP/IP, Modbus RTU or BACnet IP
  • Remote unit access

HYDRAULIC CIRCUIT

  • Hydraulic piping made of stainless steel or copper depending on diameter
  • Threaded copper connection or free stainless-steel flange depending on required size
  • Air vent valve
  • Safety valve
  • System filling and draining connections
  • Flow switch
  • Thermal insulation of piping

GENERAL

  • Custom casing color
  • Low-noise version with additional sound insulation
  • Waste heat recovery via series-connected plate heat exchanger:
    • Plate heat exchanger – condenser
    • Desuperheater (no condensation)

ELECTRICAL

  • Advanced Siemens Climatix controller
  • Cabinet lamp with socket
  • Electrical cabinet heater (250 W)
  • Dry contacts
  • ATEX or LED lamp for compressor enclosure
  • Electrical energy meter
  • Remote monitoring (Siemens Cloud)

HYDRAULIC CIRCUIT

  • Primary-side circulation pump
  • Dual primary-side pumps (duty + standby)
  • Buffer tank (2 connections) or hydraulic separator (4 connections)
  • Y-strainer filter
  • Expansion vessel
  • Flow meter
  • Shut-off valves (butterfly valves)
  • Self-regulating pipe heaters for frost protection
  • Hydraulic circuit upgrade using hydromodule