VTS Ventus VVS650 [46/55] Control circuits

VTS Ventus VVS100 [46/55] Control circuits
Controls
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CONTROL CIRCUITS
» All control circuits installed inside the base unit are fully wired and congured in accordance to its technical
selection.
» Control of fans operation is done by means of digital communication based using ModBUS protocol.
Each of the fan is adequately programmed with individual address enabling its recognition by the control
system (fans should never be swapped).
» Control elements handling external modules (antifreeze thermostat of the water heater, valves for heater
and cooler, supply air temperature sensor) should be connected to terminal block.
» Clear and easy to ready description of terminal block facilitates correct connecting of control peripheral
components.
POWER SUPPLY AND PROTECTION CIRCUITS
» Fans power supply, rotary heat wheel and control circuits are fully wired.
» All electrical protection circuits of fans, rotary heat wheel drive, control circuits and water heater pump are
installed inside the AHU.
» The only to be by the user is connecting the AHU to mains (to the main switch located in the connecting box)
and optionally – crossing the power supply to the pump of the water heater.
» Water heater power supply terminals are crossed to the terminal block located on AHU outer wall.
PREVENTIVE FUNCTIONS
» Constant lter contamination status control:
constant monitoring of lter pressure drop by means of static pressure transducers,
evaluation of lter contamination status for vs actual airow rate.
» Fans shutting-down delay – fans run out for systems with electric heater.
» Water heater pre-heating before fun’s start up.
» Periodical heater pump engaging in summer – to prevent against limescale accumulation.

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