FCU Refurbishment


Beatties Mechanical can provide the full supply and installation of components to refurbish existing fan coil units. We are able to work on a wide range of manufacturer1s equipment and can get items made bespoke should the original manufacturer not be able to provide these items.
We are able to offer site surveys where we will carry out a comprehensive report of the existing systems, which will allow us to put forward the best option to improve the systems performance.

We understand that certain areas of the building may still be operational so works can be carried out of normal working hours should this be required.

As part of the refurbishment process, the following components can be replaced:

  • Fan/ Motors (AC & EC)
  • Heating/ Cooling Coils
  • Drain Trays
  • Electric Heating Elements
  • Controls
  • Valves/ Actuators
  • Filters

The Benefits of Fan Coil refurbishment

Installation of new fan coil units can cause huge disruption to the operation of a building. The direct cost will include removal of the existing system and installing the new units, plus additional costs of ceilings being removed, recommissioning of the new system, plus water treatment.
These factors should be weighed against the option of a fan coil refurbishment which can be done in situ. The work requires far less resource and can be completed out of hours or arranged around the needs of the business or occupiers.

Refurbished fan coil units can operate at much lower noise levels due to the new bearings and airflow characteristics. The improved performance and the availability of variable speeds (EC version) present the occupiers with more control over their thermal comfort and energy expenditure.
Planned upgrade offan coil unit components will assist hugely in any unexpected maintenance, and disruption to occupied spaces.

An upgrade of old fan coils helps to reduce building energy consumption and has a significant role to play in tackling operational carbon emissions. Refurbishing existing fan coil units, rather than manufacturing, transporting, and installing new ones, can significantly reduce the embodied carbon emissions of a building too.

Benefits of an EC motor over a traditional AC motor?

EC motors are on average 50-80% more efficient than traditional alternating current (AC) motors. Approximately 30% of the energy consumption of an AC motor is attributed to the generation of magnetic fields. The design of an EC to DC motor uses a permanent magnetic field and eliminates this energy requirement.

The electronic board enables a higher level of control of an EC motor. The efficient speed of modulation makes it possible to accurately regulate airflow in relation to the cooling or heating requirement. This means EC motors do not run above the required capacity, unlike AC motors which can run higher than is needed leading to considerable energy losses. EC motors also tend to be smaller, saving valuable space in the unit and can generally be retrofitted in place of AC motors.
The replacement of AC with EC fan motors should be accompanied by a control upgrade to maximise the energy efficiency of the refurbished system.

Key Benefits of Refurbishment

  • Energy Savings (running costs)
  • Reduction in carbon emissions
  • Efficiency of System
  • Thermal & acoustic performance
  • Unplanned maintenance
  • Improved occupant comfort
  • Less disruption of a full system replacement

Beatties Mechanical are also an approved installer for Plasma Air products and the Model PA600 can be easily retrofitted to existing fan coil units installations. The Plasma Air Model PA600 is a needle point brush type ionizer producing an equal amount of positive and negative ions. This ionization equipment is effective in reducing harmful pollutants and odours by introducing positive and negative ions into the system airflow. This unit is highly versatile as it may be installed in an air handling unit, fan coil unit, PTAC, heat pump and even a ductless split system. The model PA600 is self-contained in a potted ABS box which has moulded flanges with mounting holes. Models are available to accept 12V DC, 24V AC, 120V AC and 230V AC without the use of an external power supply device as the units take their power from the FCU, and do not affect the energy efficiency of the FCU, as they offer negligible resistance to airflow.

Bipolar ionisation technology is designed to distribute high volumes of ions into a space to potentially remove viruses and other pathogens from the breathing zone. If selecting these systems for pathogen mitigation, they are most effective when added to local ventilation plant and terminal devices such as fan coil units. They are ideally deployed close to the point of use, as the ions lose their charge over time as they travel through long lengths of ductwork. Systems fitted to AH Us will primarily act to improve the quality of air being delivered to the space by reducing levels of harmful ultrafine particulate and voes in the outdoor air, they will have less effect on the air being re-circulated by the fan coils.