Application
Table Of Contents
- Overview
- Sequence of Operation
- Average Face Velocity Control
- AVS Calibration
- AO2 Flow Signal
- Control Loop - Damper Application
- Venturi Application
- Minimum Exhaust Mode
- Maximum Exhaust Mode
- Warning Limits
- Alarm Limits
- Alarm Output
- Horn Disable
- Sash Area Alarms
- Table Access Feature
- Emergency Mode
- Start-up/Decommission Mode
- Fail Mode
- Wiring Diagrams
- Point Database Application 2941
- Point Database Application 2942
- Point Database Application 2900
Overview
Hardware Inputs
6
Siemens Industry, Inc. Application Note, Apps 2941/2942 140-1319
Restricted 2015-11-04
Application 2942 Control Drawing.
Hardware Inputs
Analog
Air velocity sensor(s) – (2nd sensor available for field use)
(Optional)
Differential pressure transmitter/Linear Flow input (Vortex Shedder)
(Optional)
External face area
Vertical sash sensor(s)
Digital
Operator Display Panel (ODP)
ATTN.UNATTN (through DI 2)
OCC.UNOCC (through DI 2)
(Optional)
OCC Face Velocity Setpoint (through ODP)
Remote Emergency Purge (through DI 6)