The iNVent 2 Control system is a microprocessor based system to control Four Zones of Monodraught Natural Ventilation systems. It is the successor of the iNVent control panel and by default operates in the same way, yet has a range of additional features and flexibility that allows it to do so much more. System Overview Monodraught iNVent 2 Control Panel MASTER CONTROLS EXTERNAL TEMP. COOLING/HEATING SOLID STATE RELAYS GENERAL PURPOSE External Temperature Input (required) 6 Fault Output (optional) 6 Fireman’s Key Switch Input (optional) 6 Competition Key Switch Input (optional) 6 Zone Inputs/Outputs...

Power The iNVent 2 control panel is powered by an external 60W switched mode power supply that converts 240V AC to 24V DC. This 24V DC supply is distributed throughout the panel via resettable fuses to each of the 4 Zones, as well as to the other auxiliary 24V feeds. The 24V DC is also stepped down to 3.3V which is used to power all the control circuitry on the PCB. This means that the 24V feed to a connected product can be shorted without affecting the operation of the panel or the rest of the connected devices. The External SMPS has a current limit of 2.5A, but in actual use, this needs to...

Master Controls Rain Sensor Input (required) [7.1] The Rain Sensor Input requires a normally open volt-free contact wired between the “COM” and “NO” “Rain” terminals of J28 (upper level). When the contact is closed the system will close the active louvres and windows, but leave internal dampers on X-AIR® systems and wall louvres in their position based on the temperature/CO2 to allow continued ventilation in the space. If the ventilation system is a WINDCATCHER® Classic or SOLA-BOOST® system, then the dampers will fully close on rain. Heating Interlock Input (optional) [7.2] The Heating Interlock...

Control Strategy The iNVent 2 panel uses a Seasonal Automatic Temperature Control strategy to manage the air quality and room temperature of a zone. It varies the damper and louvre openings of Monodraught Natural Ventilation systems based on the internal and external temperatures, and adjusts for the current season. Table 1 - Damper and Louvre Operational Strategy Spring Summer Autumn Start Date Finish Date Zone Temperature Up to 16°C At 17°C At 18°C At 19°C At 20°C At 21°C At 22°C At 23°C At 24°C At 25°C At 26°C Night Time Cooling ActivLouvre Opening Damper Output Dampers Closed Dampers Open...

Other Information Additional Temperature Sensor and Averaging The Additional Temperature sensor is auto detected at power up and is used with the integrated sensor in the zone controller (SOLA-BOOST or WINDCATCHER) to give an average temperature in a larger zone, unless selected otherwise using the iNVent Configurator software. Zone Usage Maximum of 3 SOLA-BOOST (Classic / X-Air) systems (Power tracks) can be connected to one zone (controller) or a maximum of 3 WINDCATCHER (Classic / X-Air) systems (Damper Motors) can be connected to one zone. If the large dampers with 2 actuators are used or...

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