Replacing chillers on rooftops, due to their location and size, may initially seem an immense undertaking. However, with Aria having a wealth of experience in this field, every aspect of the project can be managed efficiently – from the initial planning phase to the final installation and maintenance of the new chiller.

New chillers prepared for roof crane lift

Understanding the Project Scope

Before embarking on chiller replacement, it's crucial to determine the project's size and requirements. This involves conducting a comprehensive survey of the existing chiller system, assessing its current condition, and identifying the necessary steps for its replacement.

Chiller crane lift in central London

Project Scope Determination Steps

1. Conduct a thorough survey of the existing chiller system.
2. Assess its current condition.
3. Identify the necessary steps for chiller replacement.

Finding a Suitable Replacement

Once the project scope has been defined, the next step involves identifying a suitable replacement for the old chiller. This process entails considering various factors such as the building's cooling needs, energy efficiency goals, and budget constraints.

Providing Detailed Specifications

A professional service should provide detailed specifications, including documentation, drawings, and calculations. This information is critical in ensuring the replacement chiller fits perfectly into the existing setup and meets the building's cooling requirements.

"Detailed specifications are crucial in ensuring the replacement chiller fits perfectly into the system and meets the building's cooling requirements."

Liaising with All Parties Involved

A successful chiller replacement project requires effective communication and coordination with all parties involved. This includes liaising with tenants, building facilities, the landlord, local council, suppliers, and crane contractors.

Existing chiller being loaded on lorry for removal

Manufacturing Custom Parts

Certain chiller replacement projects may require the manufacture of custom parts such as supports, framework, and control panels. These parts are crucial in ensuring the new chiller fits perfectly into the existing setup.

Arranging the Removal of the Old Chiller

The removal of the old chiller is a crucial step in the replacement process. This task involves careful planning and execution, as it typically requires the use of a crane due to the chiller's size and location.


Organising Delivery and Placement of the New Chiller

Once the old chiller has been removed, the new chiller needs to be delivered and placed on the rooftop. This process requires careful coordination to ensure the chiller is delivered and installed without any issues.

Installation and CommissioningNew chiller being lifted onto the roof

After the new chiller is in place, it needs to be installed and commissioned. This process involves connecting the chiller to the building's cooling system and ensuring it operates efficiently and effectively.

Providing a Maintenance Regime and Aftercare

Finally, a professional service should provide a maintenance regime and aftercare for the new chiller. Regular maintenance ensures the chiller continues to operate efficiently, prolonging its lifespan and ensuring the building's cooling needs are met.


In conclusion, while rooftop chiller replacement might seem daunting, with the right service provider armed with a wealth of experience, it can be a straightforward and efficient process.

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