Client
Classified
Location
Trafalgar Square, London
Sector
Air conditioning
The brief
Chillax Engineering was called to replace a defective compressor serving a heat pump air handling unit at a building near Trafalgar Square in London.
The unit supplies fresh air to the building’s function rooms, helping to maintain suitable indoor conditions for occupants. Alongside ventilation, treating incoming air is important: during warmer weather, outdoor air can introduce additional heat and moisture that the system needs to manage.
The compressor is a key part of the heat pump’s refrigeration circuit. It circulates refrigerant and raises its pressure, allowing the system to transfer heat. A defective compressor can therefore affect the unit’s ability to heat or cool the incoming air, even if its ventilation fans continue to operate.
The client needed the faulty component replaced to address this loss of performance and support the wider system’s operation.
What we did
Our team replaced the defective compressor serving the heat pump air handling unit, addressing a critical component within the system.
Attention to the wider system
A compressor replacement involves more than exchanging a mechanical part. Compatibility, installation quality and the condition of the surrounding refrigeration circuit all influence ongoing performance.
Understanding compressor failure
Electrical issues, operating conditions or faults elsewhere in the circuit can contribute to compressor failure. Identifying the underlying cause is an important part of reducing the risk of the same problem recurring.
Supporting fresh air conditioning
The work focused on restoring the heat pump’s ability to transfer heat, helping the air handling unit condition the fresh air supplied to the building’s function rooms.
The outcome
The defective compressor was replaced, addressing the component fault affecting the heat pump air handling unit.
The repair supports the system’s ability to treat incoming fresh air and maintain comfortable conditions within the function rooms. In warmer weather, this includes cooling the incoming air and, where operating conditions allow, removing moisture as it passes over the cooling coil.
The project highlights how one component can influence the performance of a much larger building services system. Maintaining the refrigeration circuit is an important part of keeping a heat pump air handling unit working effectively alongside its ventilation components.
