AERCO Control System (ACS)
CHAPTER 2
: ACS Installation
11/22/2017
AERCO International, Inc.
•
100 Oritani Dr.
•
Blauvelt, New York 10913
Page 17 of 139
OMM-0081_0F
Phone: 800-526-0288
GF-131
WARNING!
The ACS can be powered by single-phase AC voltages ranging
from 85 to 265 VAC. Therefore, exercise extreme care when
connecting power wiring to the unit. Ensure that the external
circuit breaker supplying line voltage to the ACS is
turned off
to
avoid severe electrical shock.
POWER WIRING
2.4
Use 14 to 18 AWG wire for AC power connections and proceed as shown below:
Wiring ACS Power Connections
1.
Feed the power wiring through the right-most knock-out in the bottom of the panel
enclosure (
Figure 2-2
).
2.
Connect the Line (black), Neutral (white) and Ground (green) wire leads to the L, N and
(GND) terminals. The terminal blocks can be detached from the ACS headers if necessary
to simplify field wiring connections.
3.
Following completion of power wiring, turn on the external circuit breaker or switch and
apply power to the unit. The ACS display will momentarily show:
AERCO ACS
REV X.XX
(Where: X.XX represents the revision level of the installed ACS software)
4.
Next, since the Header Sensor is not yet installed, the display will then show:
HEADER TEMP
SENSOR ERROR
The red FAULT LED indicator will also light and a fault message will alternately be
displayed as follows:
HEADER SENSOR
ERROR
5.
Press the ON-OFF key on the keypad. The green ON LED indicator will light and the ACS
display will continue to show the above message.
6.
After verifying proper power connections, press the ON-OFF key. The ON LED will turn off.
7.
Turn off the external power switch and/or circuit breaker. The ACS display will go blank.
8.
DO NOT apply power to the ACS until all of the required external connections described in
paragraphs 2.5
through
2.11
have been completed.
