NANOWONE

High-efficiency, compact water chiller / heat pump (small capacity)

NANOWONE is an ultra-compact, water-cooled chiller/heat pump with dimensions that allow it to fit within the footprint of a standard Euro pallet (1200×800 mm), simplifying transportation, installation and servicing.

The unit is equipped with an ATEX-certified semi-hermetic reciprocating compressor driven by a frequency inverter, enabling soft starting and continuous speed modulation to match the cooling or heating capacity to the actual system demand.

Two high-efficiency EC pumps, installed on the evaporator and condenser circuits, provide efficient flow regulation, supporting reliable operation of both the unit and the hydronic system. Brazed plate heat exchangers are used as the evaporator and condenser, ensuring efficient heat transfer while minimizing refrigerant charge.

Each unit is factory-tested in accordance with EN 14511 and delivered pre-charged with refrigerant and oil. The assembly is assessed for conformity in accordance with Pressure Equipment Directive 2014/68/EU (PED), ensuring compliance with the applicable safety and environmental requirements.

NANOWONE Brocsure
(PDF 1,6 MB)

Number of refrigeration circuits: 1

Unit dimensions:

• Length (+ connections): 950 mm (+ 350 mm)
• Width: 800 mm
• Height: 1450 mm

EN 378 compliant:

•  Enclosed housing: all refrigerant circuit components installed inside the housing.
•  Safety strategy: refrigerant gas leak detector + differential air pressure switch + ATEX fan
•  Refrigerant charge below 4,9 kg

ATEX-certified components:

•  Semi-hermetic reciprocating compressor
•  Pressure switch
•  Electronic expansion valve (EEV)

FLOW UNDER CONTROL

Factory-installed Grundfos MAGNA3 EC pumps provide benefits:

•  Stable evaporator flow under all operating conditions
•  Lower pumping energy consumption
•  Faster commissioning
•  Simplified installation

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GENERAL

• Powder-coated galvanized steel housing, corrosion and weather resistant, standard color RAL 7035
• Removable housing panels
• Anti-vibration mounts
• Pipe insulation to prevent condensation
• Safety strategy — refrigerant gas leak detector, differential air pressure switch and ATEX fan
• ATEX-certified key components of the refrigerant circuit; compressor, pressure switch and EEV

ELECTRICAL

• Electrical control cabinet equipped with a 4-pole main switch and phase-monitoring relay
• Electrical protection for all components
• Advanced Siemens microprocessor controller for comprehensive unit control and monitoring
• Touchscreen display for unit monitoring and operation
• Power supply for pumps up to 1.5 kW and pump control signals
• Electrical cabinet light with integrated socket
• Electronic expansion valve for precise refrigerant flow control
• Communication protocols: Modbus TCP/IP or BACnet/IP
• GSM router
• Remote access to the unit
• For heat pump use:
  • Auxiliary heater control via 0–10 V analog signal
  • Three-way valve control for domestic hot water (DHW) production

HYDRONIC CIRCUIT

• Piping made of stainless steel
• Stainless steel loose flange connections
• High-efficiency EC pump on the evaporator (cold) side
• High-efficiency EC pump on the condenser (hot) side
• Air vent valve
• Safety relief valve
• Drain valve
• Flow sensor
• Piping thermal insulation

GENERAL

• Custom housing RAL color

ELECTRICAL

• Remote unit monitoring (Siemens Cloud)
• Change of setpoint value

HYDRAULIC CIRCUIT

• Hydraulic circuit upgrade using hydromodule