What are the different types of fan coil units?
Contents |
[edit] Introduction
There are four types of fan coil units (FCUs): horizontal chassis above a ceiling void, horizontal exposed, underfloor and vertical wall mounted units. All options offer a similar level of performance and can deliver heating and cooling, heating only and cooling only, so specification generally comes down to the design requirements and ensuring the building’s demands are met.
[edit] Horizontal above a ceiling void fan coils
Ideal for new build developments or as a retrofit option where the units need to (or can be) concealed in the ceiling void. Fan coils in this type of installation can work slightly harder per unit as acoustics are buffered by the ceiling and any other insulating layers reducing noise levels in space below.
[edit] Horizontal exposed fan coils
Popular as part of an industrial inspired design within offices, restaurants or reception areas. Exposed fan coil design revolves around how the units look and the requirements for installation to align with the aesthetics of interior spaces. Another consideration when exposing fan coils is acoustics. As there is no longer something to insulate any noise produced, you may need to specify larger units working at a lower rate or utilising attenuators to meet the required demands to ensure limited disruption to occupants.
[edit] Underfloor fan coils
A perimeter solution used in conjunction with displacement ventilation system to combat drafts and solar gains from glazed facades or curtain walls. Underfloor fan coils also allow greater floor to ceiling heights for more spacious designs.
All buildings have a raised floor/false floor so submerging those units and then it means that there is the less
[edit] Wall mounted fan coils
Ideal for refurbishments where low ceiling heights limit installation within the void, in which case a vertical unit can either be mounted within a false wall or cabinet, using a chassis type or can be supplied with a case. The units can be mounted either at low level or high on the wall.
Fan coil units offer a dynamic and discreet solution to meet demands in all types of applications and development, providing a comfortable indoor environment for occupants. They can be controlled centrally or on a room by room basis and, in some instances, manufacturers will offer controls that can manage temperature for multiple rooms in a single unit.
For more information on the fan coils solutions and unique controls offered by GDHV or to discuss a specific project in more detail, please contact our team of experts. GDHV also have a comprehensive range of CIBSE accredited CPDs offering advice on fan coils and heat pumps, contact us to book a seminar, or join in the conversation on our LinkedIn page.
--Glen Dimplex Heating & Ventilation, 13:05, 31 Mar 2021 (BST)
[edit] Related articles on Designing Buildings Wiki
Featured articles and news
Classroom electrician courses a 'waste of money'
Say experts from the Electrical Contractors’ Association.
Wellbeing in Buildings TG 10/2025
BSRIA topic guide updates.
With brief background and WELL v2™.
From studies, to books to a new project, with founder Emma Walshaw.
Types of drawings for building design
Still one of the most popular articles the A-Z of drawings.
Who, or What Does the Building Safety Act Apply To?
From compliance to competence in brief.
The remarkable story of a Highland architect.
Commissioning Responsibilities Framework BG 88/2025
BSRIA guidance on establishing clear roles and responsibilities for commissioning tasks.
An architectural movement to love or hate.
Don’t take British stone for granted
It won’t survive on supplying the heritage sector alone.
The Constructing Excellence Value Toolkit
Driving value-based decision making in construction.
Meet CIOB event in Northern Ireland
Inspiring the next generation of construction talent.
Reasons for using MVHR systems
6 reasons for a whole-house approach to ventilation.
Supplementary Planning Documents, a reminder
As used by the City of London to introduce a Retrofit first policy.
The what, how, why and when of deposit return schemes
Circular economy steps for plastic bottles and cans in England and Northern Ireland draws.
Reporting on Payment Practices and Performance Regs
Approved amendment coming into effect 1 March 2025.