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MultiBox II

MultiBox II
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MultiBox II Constant pressure regulation & pressure alarm – Art.No: 13-700 Geovent MultiBox II is an advanced ventilation control, which is primarily used for constant pressure regulation (PID / differential pressure) of a fan, & it also has a build in alarm system, telling the operator in case that it cannot reach the requested set point. The MultiBox II is easy to install and has a userfriendly menu system, which lowers the installation costs. By using the MultiBox II, will result in the fan constantly adjusting the speed according to the number of extraction points in use. By adjusting the power according to the necessary air flow, will result in lower running cost on the fan, and less of the heated (or cooled) indoor air is extracted. The MultiBox II can further more give control signals to the central control unit / general AHU, and thereby lower the extraction air flow on the AHU (10-0V), as a slave of the airflow on the process ventilation system. MultiBox II is recommended for: • Frequency controlled extraction system (0-10V) • Regulation of EC-motors in ventilation systems • Regulation of dampers & Membrane dampers • Supply air in balance with several process points • Feedback regulation with up to 3 set points • Slave control of supply air & room extraction •Several switch options, for info to central systems, on usage, alarms, filter alarms etc. • Pressure control in cabinets with supply & extraction air, why it is suitable as a Feedback regulator & Slave control for process ventilation. Features: MultiBox II has a built-in pressure sensor (1000 & 5000 Pa) and is supplied with 3 outputs & 3 inputs with sum-box. It can combine several supply and extraction systems and regulate according of up to 3 set points. Furthermore it has an alarm function, adjustable lower and upper levels. User information is showed on a 2x16 dot display, which gives the user/installer useful information. All functionalities on the MultiBox II is controlled by a powerful micro processor with a built-in EE-prom, which is used for storage of the software and the data/parameters, which are typed into it. When the processor and EE-prom are built-in, the risk of loss of data is lowered. All vital components are well shielded against external electrical eruption/noise with both filter and fuse. The unit is CE-marked & EMC-tested. HOVEDGADEN 86 • DK-8831 LØGSTRUP •Tlf.: (+45) 8664 2211 • e-mail: salg@geovent.dk

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Power supply Installation diagram for MultiBox II Voltage-free contacts Start/stop Control Controller and Regulator outputs 24V 0 Control start/ stop Alarm start/ stop An energy optimized system consist of the following Geovent components and has the following characteristics: All the dust and smoke has to be removed directly at the source The process ventilation is only active when there is a need All airflows are controlled after the actual needs Airflow is adjusted to the lowest possible level Balanced room extraction & supply air. The units capacity is designed according to the required...

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