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schematic

Centralising the valves serving a number of terminal devices (eight in this case) makes it much easier to commission and balance them.

Measure to know
Published:  June 2007

With the driving need for building-services and facilities managers to ensure internal environments are maintained in a sustainable way comes several considerations for dealing with waterborne heating and cooling systems. Pressure losses across balancing valves can ruin the control of a variable-flow water system, resulting in loss of internal climate control and accompanying complications such as irritating excess pipe noise. Peter Rees advocates the tried and tested method of differential pressure control and offers some advice on measuring the pressure across the system.

chart

A fully integrated approach to designing a control system should include as much off-site commissioning as possible.

Delivering an effective control system
Published:  June 2007

Doug Robins offers advice on how to realise a control system that will result in a well run and energy efficient building.

hub

Centralised commissioning and balancing of up to eight terminal devices can be achieved from Tour & Andersson’s TA-HUB.

Tour & Andersson liberates the benefits of centralised commissioning
Published:  June 2007

Tour & Andersson has introduced a product that is said to have the capability of reducing installation time by at least 20% and commissioning time by over 50%. Called TA-HUB (to imply hydronic user-friendly balancing) the concept also significantly reduces the time required for the maintenance of hydronic system by bringing together control valves for a number of terminal devices to a single location.

oventrop

Maintaining constant preset flow to terminal devices in the data halls of a leading bank in the south west of England are Oventrop Hydromat Q flow-regulating valves.

Oventrop valves help bank keep rates steady
Published:  June 2007

Oventrop Hydromat Q automatic flow-regulating valves have been installed to serve mission-critical blade-server racks as part of the refurbishment of mechanical and electrical infrastructure systems of data halls of a leading bank.

comdronic

In systems with variable-speed pumps and differential-pressure control valves, it is still very important to measure pressures at key points so that pump speeds can be optimised. Electronic manometers can accurately the high pressures that may be encountered.

Maximising energy savings in variable-flow systems
Published:  June 2007

Duncan Selby warns against placing too much reliance on differential-pressure control valves in variable-flow systems.

academy

A wide selection of Oventrop valves have been used to balance water-distribution systems for heating, cooling and DHW in the new Sandwell Academy.

Oventrop delivers balanced approach for new academy
Published:  June 2007

Oventrop valves played a key role in commissioning the water-based services in the new £25 million Sandwell Academy in West Bromwich. The 2-storey academy will specialise in sport and business enterprise.

belimo

By combining the functions of pressure-reduction valve (1), differential-pressure control (2) and ball valve with characterising disc (3) valves from Belimo deliver a constant flow at a wide range of differential pressures.

Belimo valve assembly maintains constant preset flow
Published:  June 2007

Belimo’s pressure-independent characterised control valves greatly simplify the design and installation of hydronic systems by delivering a constant preset flow over a wide range of differential pressure such as are encountered in systems with variable-speed pumps.

module

Up to six terminal units, such as fan-coil units, can be commissioned and maintained from one point using Crane’s CommPac manifold commissioning module.

Crane moves into centralised commissioning modules
Published:  June 2007

Crane now offers a manifold commissioning device that enables up to six fan-coil units, or other terminal units, to be commissioned and maintained from one point.

signing

Acknowledging the importance of commissioning — (from left) CIBSE president David Hughes, CIBSE chief executive Stephen Matthews and CSA chairman Roger Carlin sign a memorandum of understanding between the two organisations.

Promoting the importance of commissioning
Published:  June 2007

An agreement to develop and promote commissioning within the construction industry has been signed by the Chartered Institution of Building Services Engineers and the Commissioning Specialists Association. The signing of this memorandum of understanding builds on previous work and provides shared access to member benefits and services.

Commissioning for economic and trouble-free pumping
Published:  June 2007

The performance and operating costs of pumps throughout their lift is dramatically affected by how well systems are commissioned. Roy Henderson shares his views on how to achieve effective commissioning.

modules

Commissioning modules with built in energy meters for over 200 apartments in a development in Dublin have been specially built by SAV.

SAV commissioning modules for Dublin apartment block also meter energy use
Published:  June 2007

SAV FloCon modules have been used to provide centralised commissioning of services for new luxury apartments in Dublin and to monitor the supply of energy to each flat.

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