AERCO Control System (ACS) - Manual (Page 74)

MC2: 04/23/13 Page 74 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
4.3.5 Entering Boiler Start & Stop Levels
The Boiler (BLR) Start and Boiler Stop Levels are also entered in the Configuration Menu. Refer
to Appendix I to determine the correct Start and Stop levels for your installation. Enter the
appropriate values in the Configuration Menu as shown below:
4.4 CONSTANT SETPOINT MODE
In the Constant Setpoint Mode of operation, only a header sensor is required. Entries in this
mode are required for the following items:
FIELD ADJUST MENU
HEADER SET MODE
INTERNAL SETPOINT
CONFIGURATION MENU
BOILER OPERATING MODE
BLR START LEVEL
BLR STOP LEVEL
The set-up instructions for the above menu options are provided in paragraphs which follow.
Entering Boiler Start & Stop Levels
1. Using the ▲ or ▼ arrow key on the keypad, scroll through the Configuration Menu until
BLR START LEVEL is displayed along with the current setting (default = 20%).
2. If the desired Boiler Start Level is not displayed, press the CHANGE key. The display will
switch to a reverse video format.
3. Select the desired Boiler Start Level using the ▲ or ▼ arrow key.
4. Press the
ENTER key to store the changed Start Level.. The reverse video display will
revert to the normal VFD display format.
5. Next, scroll through the menu until the BLR STOP LEVEL is displayed along with the
current setting (default = 16%).
6. If the desired Boiler Stop Level is not displayed, repeat steps 2, 3 and 4 above for the
desired Stop Level.