Installation Instructions

Document No. 570-108
Installation Instructions
February 17, 2017
Page 4 of 6 Siemens Industry, Inc.
Dimensions.
Wiring Diagrams
CAUTION
Controllers will be
damaged/destroyed if offboard air
module(s) are not wired correctly
and power is applied.
Offboard Air Module Wiring.
CAUTION
The FHC-OAVS has two terminal
blocks with terminations
numbered identically (terminations
1 through 16). DO NOT get these
mixed up with each other.
If the FHC-OAVS is not connected
as shown, it is not resistant to
electrical surges. It is also
susceptible to interference from
other equipment.
CAUTION
A separate power supply is
required if a 4-20 mA sensor is
used.
Failure to follow wiring precautions
will result in equipment damage.
Wiring for AI5: Sash Sensor 1.
Wiring for AI4: Sash Sensor 2.