You can count on commissioning
It is now more readily understood that correct sizing and careful pump selection can make a significant difference to the overall energy and CO2 output, as well as the need to futureproof these designs.
Back to basics
Hydronic system balancing is one of the more complicated tasks faced by building services engineers and historically heating and chilled water systems were balanced by specialist engineers only.
Considered connections
Speed is of the essence when it comes to pipe fitting in today’s large-scale projects. Scott James offers his advice on making the right choice.
Feeling the SQUEEZE
M&E contractors and building services managers looking to maximise space within plant rooms have a checklist of utilities to consider - heating systems are just one of many to juggle. And boilers are just one piece of the plant room jigsaw that needs to slot into place. However, with strict guidance and legislation around the area required for ventilation, access for handling units and clearance in line with manufacturer’s guidelines for maintenance for example, it is a headache for many.
Cashing in on commissioning
Mark Todd of the Commissioning Specialists Association calls for new ways of working to match the new technologies now available to the construction industry – and to help achieve better buildings for the future
Closed systems need careful commissioning
James Townley explains why commissioning is so important for closed heating or cooling systems, and offers advice on the approaches that can help ensure effective long-term operation right from the start.
Fit for purpose
Dave Lancaster discusses why commissioning of pipework is so important, and shares his insights on the best approaches to this vital process.
Take it step-by-step
Installing and commissioning a water heater is a very different process to the one you would carry out for a boiler. Dan Martindale has put together a guide to the key stages of commissioning a water heater.
Planning for successful commissioning
The key to the successful commissioning of a project is a commissioning plan. Tony Anderson, a member of the Commissioning Specialists’ Association’s training committee and assessment panel shares his experience of how this simple tool provides clarity to commissioning projects.
The day-to-day realities of commissioning
Dave Ward of Hamworthy Heating, explains what a commissioning job entails and why it’s worth considering — not just in terms of efficiency, but also customer safety.
Marflow Hydronics adds product downloads to its web site
Marflow Hydronics has further developed its web site to enable customers to download relevant technical information, including BIM models, via a new product-downloads section. In addition, all product pages can be captured in PDF format and used as a data sheet.
Danfoss’s balancing act
Danfoss ASV automatic balancing valves have been installed in five social-housing tower blocks in south-east London to overcome problems of unevenly distributed heating from central boiler plant. They were installed with minimum inconvenience to tenants.
The CSA’s contribution to making buildings work
Everyone appreciates the important role of commissioning the services in a building, but the work of the Commissioning Specialists’ Association (CSA) is less well understood. Andrew Watkin, CSA chairman, explains the role of the association.
Commissioning Specialists’ Association opens entries for its awards scheme
The annual awards of the Commissioning Specialists’ Association is open for entries. This is the third year of the awards, which acknowledge the achievements and efforts of companies and engineers. Products, systems and services that are essential for the smooth and efficient operation of any built environment will also be recognised.
Perfectly balanced with Grundfos
Getting the right balance on domestic heating system is a simple task with the help of the Grundfos Alpha3 system. The company says that 86% of domestic heating systems are not balanced and that balancing a system can reduce heating costs by 5 to 17%.
Marflow Hydronics adds product downloads to its web site
Marflow Hydronics has further developed its web site to enable customers to download relevant technical information, including BIM models, via a new product-downloads section. In addition, all product pages can be captured in PDF format and used as a data sheet.
Getting the best from self-regulating valves
Self-regulating valves have the potential to achieve cost-effective and optimised control in distribution networks. Paul Wightman of Albion Valves considers how to get the best from them.
Controls and services in sync.
Making alterations to a building and its services without making corresponding changes to the controls will quickly lead to poor performance and increased energy consumption. controls are not fit-and-forget technology — as Matt Peasnall of Trend Control Systems, explains.
It’s CSA awards time again
Andrew Watkin, chairman of the Commissioning Specialists’ Association looks forward to the second year of the association’s awards.
How HIUs can help in the commissioning process
Commissioning is the key to ensuring that every heat interface unit (HIU) in a district-heating system delivers. Neil Parry of Altecnic discusses the issues involved.
Belimo EPIVs help keep leisure centre open during renovation
As part of major renovation of the heating-distribution and complex ventilation system of the Happyland leisure centre in Klosterneuburg, Austria, 45 Belimo EPIVs (electronic pressure-independent control valves, the orange units in the picture) were installed on eight distribution circuits during operation to avoid loss of revenue.
Balancing HIU projects
Giacomini has introduced a balancing-valve set to complement its HIUs (heat interface units) for multi-dwelling properties. These valve sets are designed to optimise the efficiency of communal heating systems by carefully balancing the heating network throughout.
How commissioning can aid long-term optimised performance
Efficient management of building energy performance requires access to current, meaningful data about the performance of building-services systems. Elio Galluzzi of SAV Systems explains why the solution begins with commissioning.
Retrofit actuators for almost any globe valve
Belimo’s replacement actuators for globe valves have customisable parameters and are equipped with a universal valve neck and stem adapter. They can be installed quickly and easily on virtually all valves from manufacturers worldwide.
Marflow Hydronics adds product downloads to its web site
Marflow Hydronics has further developed its web site to enable customers to download relevant technical information, including BIM models, via a new product-downloads section. In addition, all product pages can be captured in PDF format and used as a data sheet.
Adaptor simplifies system flushing through the filter
Eclipse Magnetics offers a universal flush adaptor attachment to enable installers to carry out routine system flushes quickly and easily by attaching flushing equipment to its BoilerMag boiler filter, using the filter as the access point. This adaptor can be attached to the back of the BoilerMag port block in just a few seconds and is compatible with screw-fit or female cam-lock hoses — so that a wide range of flushing equipment can be used.
IMI Hydronics brings intelligence to controlling systems
IMI Hydronics has created a solution to the problems caused by inaccurate control technology in heating or cooling systems. TA-Modulator is a highly precise pressure-independent balancing and control valve. It is used with a range of digitally configurable actuators, TA-Slider, to deliver the exact amount of energy to ensure perfect comfort and reduced energy costs.
Flow-limiting valves help maintain low system temperatures
The PT40 range of radiator control valves from SAV Systems helps to reduce energy waste in heat networks by ensuring that radiator systems are well balanced. These TRV sets are presettable to a flow-rate limit at each radiator, in line with the CIBSE ‘Heat networks code of practice’, eliminating the need for traditional balancing.
Siemens PICVs are selected on flow
The only information needed to the size of Siemens Acvatix PICV (pressure-independent control valve) is the required flow through it, saving time for the specifier. These valves automatically shield against pressure fluctuations in a network to maintain a constant flow. The are available in sizes from 15 to 150 mm (a 50 mm size is pictured).
Tracer dye verifies pre-commission cleaning
The addition of a tracer dye to its products for pre-commission cleaning is said by Water Treatment Products to be a major step forward. WTP tracer dye enables contractors to accurately measure the concentration of chemical cleaners as they are added to the system
What manifolds bring to commissioning
Grouping a number of terminal units together with a manifold offers major benefits for installation and commissioning. Nick Martin of Marflow Hydronics takes a look at their real advantages.
EPIV has characterised control capabilities
Belimo’s EPIV pressure-independent characterised-control valve is available in sizes from DN15 to DN150. These valves combine the four functions of measuring, controlling, hydraulic balancing and bubble-tight closing. They provide real-time information of the measured flow rate.
Addressing that performance gap in buildings
What do the performance gap and uncomfortable buildings that are energy inefficient have in common. Paul Wightman of Albion Valves believes poorly balanced systems are often to blame.
Hydraquip brings double-shut-off couplings back to the market
Hydraquip has launched a new range of double-shut-off couplings for the commercial H&V and air-conditioning sectors. Hydraquick couplings can be connected and disconnected without having to shut down or drain the system. Terminal units can also be looped out during the flushing process.
Exploiting the benefits of ‘automated’ valves
‘Self-balancing valves’ and ‘automatic balancing valves’ means that there is no need for a commissioning engineer. Right? Tony Anderson, chairman of the Commissioning Specialists’ Association’s training committee believes that the commissioning engineer’s role is more important than ever.
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