R717 GWP 0
Ammonia
NH₃
Industrial scale. Unmatched performance.
Green Circle is Øen Kuldeteknikk's proprietary range of refrigeration and heat pump units — designed and produced to meet each customer's unique needs.
Our units are always developed from the customer's process, energy needs and operating situation. The result is an optimal balance of performance, operational reliability, energy efficiency and total lifetime costs.
Every Green Circle plant starts with one thing: the customer's needs. Based on this, we choose the right system solution and technology — to deliver plants that work not only on paper, but in practice over time.
Built for industrial operation — systems that deliver stable performance year after year, without surprises.
Thoughtful dimensioning and technology choices provide a COP that matters in real-world operation.
Natural refrigerants with very low or zero global warming potential.
Lower energy consumption, reduced operating costs and longer lifetime — across the full life cycle.
Green Circle uses natural refrigerants exclusively. This provides solutions with very low or zero global warming potential and contributes to more sustainable, future-oriented energy use.
Industrial scale. Unmatched performance.
Dual use — cooling and hot water.
Chilled water and heat pumps ≤ 1000 kW.
High temperature, up to 85 °C.
All Green Circle units are produced locally in north-western Norway. We deliver complete plants from our own organization — with full control of the entire value chain.
2D and 3D — from the customer's process to finished drawings.
Machining and prefabrication in our own workshops.
Certified welders and quality-assured procedures.
Surface treatment made for industrial operation.
Complete unit built and rigged internally.
Control system adapted to the plant's actual use.
Functional testing before delivery from the factory.
Delivered complete and ready for installation.
We take pride in the craftsmanship — and build solutions that last. Our units are:
Green Circle is not just about machines. It is about delivering solutions that create value over time:
We combine deep process understanding with innovative solutions and a clear environmental focus — to deliver plants that create value today and in the future. Green Circle helps create high-skill jobs and value in rural Norway.
Get in touch for a no-obligation conversation about refrigerant, dimensioning and delivery — by phone, email or a visit to our facilities.