EVCB – VAV Unit Controller
מאפיינים מרכזיים
- בקר ספציפי ליישום הניתן להגדרה
- מקומי BACnet MS / TP או Modbus (ניתן לבחירה)
- התחבר לתרמוסטט החדר באמצעות 3 חוטים
- עד 4 כניסות ו -6 יציאות
- זיהוי מצב לחץ אוטומטי אופציונלי
- חיישני חדר דיגיטליים חדשים לבקר ה- VAV שלך
- Field configured VAV algorithms
- Built-in actuator 70in.lb [8Nm]
- On board differential pressure sensor (pressure independent models)
- Manual or automatic pressure mode selection (pressure independent models)
- Configurable Inputs
- 2 analog inputs
- 2 digital inputs
- Configurable Outputs
- 2 analog outputs
- Up to 4 TRIAC outputs
- Configurable PI (Proportional-Integral) function
- Simple air balancing and commissioning via digital room sensor
- Independent, configurable proportional control band and dead band per ramp
- Selectable internal or external temperature sensor (10KΩ)
- Activate output with CO2 from digital room sensor or external CO2 sensor.
- Change over by contact or external temperature sensor
- 24Vac operation
- Removable, raising clamp, non-strip terminals
- 24Vac thermal fuse for overheat protection
- BACnet MS/TP or Modbus RTU (selectable via menu)
- Select MAC address via DIP switch or via network
BACnet MS/TP
- MS/TP @9600, 19200, 38400 or 76800 bps
- BACnet scheduler (up to 6 events)
- Firmware upgradeable via network
- COV (change of value)
- Copy and broadcast configuration to other EVCB modules via menu or network
- Automatic baud rate detection
- Automatic device instance configuration
Modbus RTU
- Modbus RTU @9600, 19200, 38400 or 57600 bps
- RTU Slave, 8 bits (configurable parity and stop bits)
- Single duct, cooling only
- Single duct cooling and/or heating
- Up to 4 stage reheat and/or cool
- Up to 4 On/Off heat and/or cool
- Up to 4 time proportioned (TPM) heat or reheat
- Up to 2 analog (0-10Vdc) reheat and/or cool
- Up to 2 floating heat and/or cool
- Pressure dependent or pressure independent
- With or without auto changeover
- Supply/exhaust (requires an additional EVC)