AERCO Control System (ACS)
CHAPTER 4
: Programing ACS Operating Modes
11/22/2017
AERCO International, Inc.
•
100 Oritani Dr.
•
Blauvelt, New York 10913
Page 67 of 139
OMM-0081_0F
Phone: 800-526-0288
GF-131
CHAPTER 4:
PROGRAMMING ACS OPERATING MODES
INTRODUCTION
4.1
Prior to programming, the ACS must be mounted and all required wiring completed. In addition,
all connections should be checked for accuracy. Once these items are completed, the ACS is
ready to be programmed for the desired mode of operation for the boiler plant. The steps for
programming will vary somewhat, depending on whether the Outdoor Reset, Remote Setpoint
or Constant Setpoint operating mode is selected.
NOTE
The Level 1 Password (
159
) must be entered prior to
programming the ACS for operation in any of the modes described
in
paragraphs 4.2
through
4.4
. Refer to
Chapter 3
for instructions
on password entry and basic menu processing procedures.
OUTDOOR RESET MODE
4.2
The Outdoor Reset mode operates based on outside air temperature. In this mode, the header
supply water temperature will vary up or down in accordance with outside air temperature.
Therefore, in order to set up and operate in this mode, an outdoor air sensor MUST be installed.
This mode requires entries to be made in the Field Adjust Menu, Configuration Menu and Relay
Menu. For Modulex installations an entry will also be required in +the Calibration Menu. The
required entries are as follows:
•
FIELD ADJUST MENU
o
HEADER SET MODE
o
RESET RATIO
o
BLDG REF TEMP
•
CONFIGURATION MENU
o
BOILER OPERATING MODE
o
BLR START LEVEL
o
BLR STOP LEVEL
•
RELAY MENU
o
SYSTEM START RELAY TEMP
•
CALIBRATION MENU (Required Only For Modulex Installations)
o
LOAD START PCT
The programming set-up instructions for the above menu options are provided in paragraphs
which follow.
