AERCO Control System (ACS) - Manual (Page 53)

MC2: 04/23/13 Page 53 of 144
GF-131
AERCO Control System (ACS)
AERCO International, Inc. • 100 Oritani Dr. • Blauvelt, New York 10913 • Phone: 800-526-0288
Installation, Operation, and Maintenance Manual
OMM-0081_0D
3.8.11 Setting Up a Manual Offset Schedule
If a switch is connected across terminals 13 and 14 on the ACS, the offset temperature can be
controlled manually. To set up a manual offset schedule, proceed as shown below.
3.9 CONFIGURATION MENU
The Configuration Menu contains options which set the Boiler operating modes start/stop levels
and maximum allowable power input. In addition, it contains a Fail Safe Mode feature which is
used to select the default mode when the controlling input source is lost.
3.9.1 BLR CNTL SELECT
You can select the type of boiler control being connected to the ACS (C-More or BCM) in order
for the ACS to read its Outlet Temp and Error Code in the Operating Menu. Otherwise, select
NONE to disable these displays in the Operating Menu.
3.9.2 BOILER OP MODE
The BOILER OP MODE menu option sets the control operation method for the ACS to either
SEQUENTIAL or PARALLEL MODE.
Setting Up an Offset Schedule
1. Scroll through the FIELD ADJUST MENU and select OFFSET ENABLE. Set this option
to ON.
2. Next, scroll to SUN OFFS TEMP and set the Offset Temperature to -15°F.
3. Press the ▲ arrow key. SUN ON HOUR will be displayed. Set the HOUR to 00.
4. Press the ▲ arrow key again. SUN ON MINUTE will be displayed. Set the MINUTE to
01.
5. Press the ▲ arrow key again. SUN OFF HOUR will be displayed. Set the HOUR to 08.
6. Press the ▲ arrow key again. SUN OFF MINUTE will be displayed. Set the MINUTE to
00.
7. Repeat steps 2 through 6 to set offset schedules for the remaining days of the week.
Different offset temperatures and ON/OFF times can be set for each day if desired.
Setting Up a Manual Offset Schedule
1. Scroll through the FIELD ADJUST MENU and select OFFSET ENABLE. Set this
option to ON
2. Next, scroll to SUN OFFS TEMP and set the desired Offset Temperature. A different
Offset Temperature can be set for each day if desired.
3. Scroll through the remaining days of the week and set desired offset temperature for
each day.
Once programmed as described above, closing the SET BACK switch will enable the
programmed OFFS TEMP for that day. Opening the SET BACK switch will disable the