Operating Instructions

Siemens Building Technologies, Inc. I
Table of Contents
How to Use This Manual ................................................................................................. III
Manual Organization..................................................................................................... III
Manual Conventions.....................................................................................................IV
Manual Symbols ...........................................................................................................IV
Where to Send Comments ............................................................................................V
Chapter 1 - Introduction................................................................................................ 1-1
Fume Hood Monitor (FHM) Controller ........................................................................ 1-1
Communicating with Your FHM.................................................................................. 1-1
Ordering Information................................................................................................... 1-1
Chapter 2 - External Hardware Components .............................................................. 2-1
The Fume Hood Monitor............................................................................................. 2-1
External Components ................................................................................................. 2-1
LED status................................................................................................................ 2-3
Button functions ....................................................................................................... 2-3
Portable Operator’s Terminal port............................................................................ 2-3
Airflow sensor input.................................................................................................. 2-3
Chapter 3 - Internal Hardware Components................................................................ 3-1
Circuit Board............................................................................................................... 3-1
Alarm rel
a
y ............................................................................................................... 3-2
Digital input............................................................................................................... 3-3
Alarm buzzer............................................................................................................ 3-3
FLN trunk definition and specification...................................................................... 3-3
Operating and power specifications......................................................................... 3-3
Wiring diagram......................................................................................................... 3-4
Chapter 4 - Application 651 – Operating Mode........................................................... 4-1
Overview..................................................................................................................... 4-1
Occupied/unoccupied mode .................................................................................... 4-1
Alarm actions ........................................................................................................... 4-2
How to silence the horn............................................................................................ 4-2
How to indicate an emergency alarm condition ....................................................... 4-2
How to clear an emergency alarm condition............................................................ 4-2
Fail-safe operation ................................................................................................... 4-3