
Natural cooling box
Natural cooling box for heat pumps, up to 5 kW cooling capacity
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Dissipates heat
Into the ground or groundwater
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Affordable and energy efficient
Requires only a little electricity for the circulation pumps of the heat pump
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Compact and thermally insulated
With small dimensions
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Quick and easy to install
Thanks to pre-assembled components
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Pre-assembled at the factory
All in one box

NC-Box –– let your heat pump provide cooling in the summer
Energy efficient and affordable cooling
On hot summer days, the heat pump control unit switches to natural cooling via the NC-Box and removes excess heat from the interior via the heating circuit into the cooler ground or groundwater. This requires only a small amount of electricity for the circulation pumps. All other functions of the heat pump remain switched off.
This makes natural cooling an energy saving and inexpensive way to cool a building.
All in one box
The compact NC-Box is fitted at the factory with all necessary components and can be rapidly installed by your heating contractor.
Product cross-section
- Viessmann NC-Box
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