• #11/397C, Bharathi Nagar 1st Main Road, Vengaivasal, Chennai-126.
Application Controlling of air blower in HVAC application
Basic Controls Air blower will be switched on/off through DOL and Star/Delta connection and  speed of blower will be controlled through VFD
Safety interlocks Over load , Earth Leakage and Earth fault trip
Control Method Local/Remote
Control parameters Flow rate of air

• Proportioning
• Process variable retransmission
• Alarms
• Remote annunciation
• Current/voltage/wattage metering and interfacing with BMS

HVAC system