AERCO Control System (ACS) - Manual (Page 143)

MC2: 04/23/13 Page 143 of 144
GF-131
AERCO Control System (ACS)
Installation, Operation, and Maintenance Manual
OMM-0081_0D
AERCO International, Inc. • 100 Oritani Dr. • Blauvelt, New York 10913 • Phone: 800-526-0288
APPENDIX I: BOILER START AND STOP
LEVELS
The ACS Configuration Menu contains options for the Boiler (BLR) Start and Boiler Stop Levels.
The default settings for these options are as follows:
• Boiler Start Level: 20%
• Boiler Stop Level: 16%
In order for the ACS to properly control the boilers in the Boiler Plant, the corresponding Start
and Start levels must be entered in the ACS Configuration Menu for the type of AERCO boilers
being controlled.
For C-More controlled Benchmark or KC1000 Boilers, the Required Start and Stop Levels are
listed at the end of Chapter 3 in the appropriate Boiler O & M Manual. If the correct O & M
Manuals are not available at the installation site, the correct values can be verified by accessing
the Calibration Menu in the C-More Boiler Controllers.
For Modulex Boilers, the corresponding Start and Start Levels for each Boiler Model are listed in
the following Table.
Table I-1: Modulex Boiler Start/Stop Levels
MODULEX
MODEL
NUMBER OF
MODULES
START LEVEL STOP LEVEL
MLX-303 2 17% 15%
MLX-454 3 12% 10%
MLX-606 4 9% 7%
MLX-757 5 7% 5%
MLX-909 6 6% 4%
MLX-1060 7 5% 3%
When the Boiler Plant being controlled by the ACS is comprised of a combination of AERCO
Boiler types and sizes, the following guidelines should be used:
• Modulex Boilers: For different sizes of Modulex Boilers, use the Lowest Start/Stop levels
for the Modulex Boilers included in the plant.
• C-More Controlled Boiler: For different sizes of C-More controlled Boilers, use the
highest Start/Stop levels for the Boilers included in the plant.
• Modulex & C-More Controlled Boilers: When a mix of Modulex and C-More Boilers is
include in the heating plant, use the C-More controlled Boiler Start/Stop levels.