MAXILINE

High-capacity industrial water chillers

MAXILINE units are high-efficiency, air-cooled water chillers. They cover the widest range of cooling capacities, making them a reliable and high-quality basis for medium and large industrial and commercial refrigeration systems. MAXILINE units are intended for outdoor installation.

MAXILINE units are available with 1 or 2 refrigeration circuits. The compressor in each circuit is specifically designed and certified for operation with flammable refrigerants. Capacity control is achieved using high-efficiency frequency inverters, providing compressor soft start and smooth, continuous speed modulation. As an alternative to frequency inverters, capacity control can be achieved using compressor capacity control heads. Plate heat exchangers are used as evaporators, reducing the refrigerant charge. Air condensers are microchannel aluminum heat exchangers, and up to 16 such exchangers can be installed (P16 configuration). Axial fans with EC motors enable variable speed control, resulting in exceptionally high operating efficiency.

Each MAXILINE unit is factory tested and delivered pre-charged with refrigerant and oil. Conformity assessment is carried out in accordance with the European Pressure Equipment Directive (PED) 2014/68/EU. The unit complies with all safety and environmental requirements.

Number of refrigeration circuits: 1 or 2

*each refrigeration circuit includes one screw compressor

Condenser configurations:

• P4, P6, P8, P10, P12, P14, P16

Unit dimensions:

• Length: 4548 mm [P4] — 12158 mm [P16]
• Width: 2352 – 2418 mm
• Height: 2822 mm

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GENERAL

• Powder-coated galvanized steel housing, corrosion and weather resistant, standard color RAL 7035
• Removable housing panels
• Anti-vibration mounts
• Compressor compartment located in a separate protective enclosure within the housing
• Pipe insulation to prevent condensation
• Safety strategy selection – permanent compressor compartment ventilation or refrigerant leak detector combined with ATEX fan

ELECTRICAL

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

HYDRAULIC CIRCUIT

• Stainless steel hydraulic piping
• Hydraulic connection via free stainless steel flanges
• Air vent valve
• Safety valve
• Drain valve (for system draining and filling)
• Flow switch
• Thermal insulation of piping

GENERAL

• Dual safety valves
• Custom housing color
• Low-noise version with additional sound insulation
• Waste heat recovery option: series-installed plate heat exchanger – desuperheater

ELECTRICAL

• Cabinet lamp with socket
• Electrical cabinet heater (250 W)
• Dry contacts for alarms
• Self-regulating heating cables
• Electrical energy meter
• Remote monitoring (Siemens Cloud)

HYDRAULIC CIRCUIT

• Circulation pump per refrigeration circuit, on the primary side
• Motorized valves per refrigeration circuit (if circulation pumps are not installed)
• Y-strainer filter
• Flow meter
• Self-regulating heating cables for frost protection
• Shut-off valves (butterfly valves)
• Hydraulic circuit upgrade using hydromodule