Refrigeration Loop System

A refrigeration loop is located inside of the HVAC machine. It absorbs the heat from the chilled water, and the water cooled repeats the cycle again. This heat transfer occurs in the heat exchanger which is called the chiller or evaporator. There are two different refrigeration machines that are commonly used for water-related systems.

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Refrigeration loop system maintenance & preventative care

There is a common misconception that closed cooling and heating systems require less maintenances and service attention when compared to other open cooling systems. This common misconception is based on the fact that closed systems operate routinely and the water is not visible. This is completely untrue.

Closed HVAC systems operate as the primary contact point for air in climate control systems, and they provide direct cooling of data processing equipment and process machinery. If proper water treatment programs and maintenance servicing is not carried out, the consequences could be catastrophic. These problems can sometimes occur quickly without much warning.

There are two types of commonly encountered HVAC refrigeration loop systems:

Compression Machines:
These machines use Freon gas as a refrigerant

Absorption Machines:
These machines use water as the refrigerant and a concentrated lithium bromine solution as an absorbent.


Chemenergy will prevent the following from occurring in both types of Refrigeration loop systems:

- Loss of water quality & Purity
- Loss of flow- Water losses
- Dissolved oxygen 
- Microbiological problems / contamination

Chemenergy can eliminate and offer prevention programs of operating and water-realted problems that can occur in your closed chilled water loop system. We provide services & solutions for "Free cooling" set-ups where the cooling tower water is used for the loop water. These set-ups require even more care and focus that only a dedicated team of professionals can give you.

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Chat with a service representative harnessing a combined 42 years of company closed loop system solutions.

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