Since 2001, Switch Controls have been providing professional engineering services relating to the design, installation and maintenance of Building Management Systems (BMS).
Using the latest available technologies and backed by years of experience, we offer innovative solutions that provide both effective and economical control systems.
As an independent firm of Control Systems Engineers, we operate in and around London, as well as undertaking projects throughout the UK and Europe. We specialise in the product range manufactured by Trend, for which we are a Trend Systems Integrator and Honeywell CentraLine for which we are an approved partner.
A Building Management System (BMS) is a computer-based control system used to monitor and control mechanical & electrical equipment, ensuring optimum levels of efficiency and economy. Typically this includes heating, air handling and cooling, fan Coil / VAV units and lighting.
BMS can vary in size and complexity and are found in many buildings and estates including commercial offices, data centres, hospitals, museums and galleries, schools and even large domestic premises. They may be specified to improve comfort in a building; reduce energy costs; reduce maintenance; and monitor and control plant centrally or remotely. Guidance on BMS specification and controls is available from the BSRIA, CIBSE, BRE guides. B&ES.
There are a number of key elements to a BMS, which are explained a little here.
Controllers vary in size, generally dictated by the number of inputs & outputs required by the system or area and are programmed with specific control functions. Controllers can operate in a standalone mode but are networked together allowing information to be shared by the whole system.
Monitoring devices are typically sensors used to measure properties such as temperature, humidity and air quality and are connected to the inputs within the controllers.
Controlled devices are connected to, and driven by, the outputs of the controllers. For example, a relay - which may in turn switch on a fan or a pump, or a valve - which can be opened to increase the volume of hot water running through a heating system to warm a room.
A BMS supervisor is essentially a PC loaded with software which allows the operator to control and adjust the system via a bespoke, user friendly interface. This allows the operator to program occupancy times, adjust set points, view alarms and graphs as well as collate data for reports.
All of our engineers and directors are qualified to Trend Expert level 1, hold CSCS cards, and have a minimum of 15 years’ experience in the controls industry. We offer a range of services, including:
The Leather Market,