Latest Trend controllers prove size does not count
Trend Control Systems Ltd has launched the first two models in a new generation of building energy management system (BEMS) controllers. Though small in size, the Trend IQ411 and IQ412 both offer a combination of advanced capabilities not found on any other building services controller, even much larger ones. The versatile new units – which incorporate a range of features that simplify installation, engineering and commissioning - are ideal for energy efficient, highly distributed local control of services such as underfloor heating, natural ventilation, small air handlers and air conditioning terminal units.
The IQ411 and 412 have also been designed as perfect drop-in replacements for Trend IQ211/212 and IQ70 controllers that may be nearing the end of their operational lives. Swapping one controller for another – including uploading/reloading the control strategy - takes five minutes or less.
Ethernet connectivity comes as standard on all variants of the IQ411 and IQ412, as does a web server. In addition, there are versions of the controllers that can also be connected to a Trend LAN and/or BACnet. This allows for different customer preferences and requirements, even if they change in the future. The new controllers are fully compatible with earlier generations of Trend control and monitoring equipment and can be seamlessly integrated within existing Trend BEMS.
The controllers’ Ethernet/TCP/IP connectivity, multiple browser support and XML capability all facilitate integration with IT systems. So too do a number of their other features, including the ability to support Ethernet speeds of 10 and 100 Mbps and a configurable web server. The latter allows the server to be disabled or its address changed.
The IQ411 and 412 share the same flexible firmware structure that Trend developed for its last generation of controllers and which gives considerable freedom to the control strategy designer. They do though feature some new control modules, including an integrator function and virtual heat meter, which together allow the monitoring of energy usage. And they have an improved optimum start/stop algorithm, which can maximise energy savings. An IQ411/412 strategy can incorporate a large number of individual control modules and up to 300 sequence steps, enough to satisfy the most sophisticated applications.
The IQ411 and 412 have a multitude of potential applications. By providing small ‘pockets’ of distributed intelligence around a building they represent a cost-effective means of achieving advanced control of a variety of heating, ventilation and air conditioning plant, as well as room-by-room or zone control. They could also provide all the control and monitoring necessary in premises where the building services are very limited – eg, just a boiler and a radiator circuit – such as a GP surgery, post office or small primary school.
For further information please call Trend Control Systems Ltd on +971 431 535 21 or email yazdi.daruwalla@trendcontrols.com.
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