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NC Box

Viessmann Light Commercial
NC Box
Natural Refrigerator

NC Box

Viessmann NC Box – Natural Cooling Box
Energy-efficient natural cooling solution for ground source and groundwater heat pump systems, providing up to 5 kW cooling capacity by using the naturally lower temperatures of the ground or groundwater to cool buildings during summer.

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Features

Natural Cooling Technology

Utilizes the naturally lower temperature of the ground or groundwater Removes heat from indoor spaces without active refrigeration Provides comfortable summer cooling Reduces reliance on conventional air conditioning systems

Energy-Efficient Cooling

Heat pump compressor remains switched off during cooling operation Only circulation pumps consume electricity Extremely low operating costs Reduces overall energy consumption

Environmentally Friendly Operation

Uses renewable thermal storage capacity of the ground No conventional cooling process required Lower carbon footprint compared to traditional air conditioning Sustainable cooling solution

Heat Dissipation to Ground or Groundwater

Excess building heat is transferred: Into the ground Into groundwater systems Efficient use of stable underground temperatures Improves indoor comfort during hot weather

Compact Design

Small installation footprint Space-saving construction Easy integration into plant rooms and utility areas Suitable for residential and small commercial applications

Thermal Insulation

Thermally insulated housing Reduces unwanted heat transfer Improves cooling efficiency Enhances overall system performance

Control / Integrations

Heat Pump Integration

Designed for use with compatible ground source and groundwater heat pump systems
Integrated into the heat pump hydraulic circuit
Seamless operation through the heat pump controller

Automatic Seasonal Cooling

Automatically activates cooling mode when required
Transfers indoor heat to the ground loop
Maintains comfortable indoor temperatures during summer

Energy-Saving Cooling Operation

Uses only circulation pumps
Eliminates compressor operation during cooling
Significantly reduces electrical consumption

Factory-Built System Solution

All hydraulic components integrated in one enclosure
Simplifies design and installation
Reduces commissioning complexity

Technical Documents

Document Name Description Document Type Language Action
Technology Brochure - Heat Pumps PDF German Download

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    For more information : ahi@ahi-carrier.com