Automation of JET ventilation system for car parking spaces, including five fire suppression zones.
Functional modes of Jet ventilation system operation: 1. Mode V (ventilation). SEV – fan operates via variable frequency driver (75% nominal power). IEV – fan operates via variable frequency driver (75% nomical power) with a power-on delay expecting CEF shutter to open. Optionally powering up an electric heater element on CEF shutter (during winter). Frost – emergency shutting down of IEV fan if receiving “Frost” signal from the BMS. JetFan – fan operates on 1st speed setting. 2. Mode SE (smoke extraction) / CO (Carbon Oxide threshold) / T (high temperature in the parking space, signaled from BMS). SEV – fan operates in Y/∆ mode. SE – fan operates in Y/∆ mode. IEV – fan operates in Y/∆ mode with a power-on delay expecting CEF shutter to open. Optionally powering up an electric heater element on CEF shutter (during winter). SVF – fan operates in Y/∆ mode, with a power-on delay, waiting for corresponding valve to open. JetFan – fan operates on 2nd speed setting.