Installation Instructions

Document No. 550-168
Installation Instructions
October 26, 2016
Siemens Industry, Inc. Page 3 of 6
CAUTION
DO Wiring – Each DO provides a
Normally Open (NO) terminal and a
Common (C) terminal.
To reduce noise and the potential
for ground loops, both connections
of a 24 Vac load must be wired
directly to the DO terminal on the
controller board.
8.
Plug the room temperature sensor cable into
the RTS port.
9.
Connect the power trunk. DO NOT apply
power to the controller without first consulting
the specialist.
CAUTION
It is important that the neutral that
supplies the TEC must be earth
grounded at the source of the 24
Vac power.
Possible erratic equipment
operation or damage if neutral is not
grounded.
The installation is complete.
Dimensions.
Wiring Diagrams
Offboard Air Module Wiring.
CAUTION
The PRC-OAVS has two terminal
blocks with terminations numbered
identically (terminations 1 through
16). DO NOT get these mixed up
with each other.
If the PRC-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 AI with a 4 to 20 mA Sensor.