AERCO C-More Controls Manual June 2010 - Manual (Page 28)

C-More Controller for Benchmark, Innovation & KC
USER MANUAL
Page 28 of 162 AERCO International, Inc. • 100 Oritani Dr. • Blauvelt, New York 10913 04/22/14
GF-112 Phone: 800-526-0288 OMM-0032_0E
2.9 COMBUSTION CAL MENU
The Combustion Cal (Calibration) Menu items are used to vary the speed of the unit’s blower
motor based on air temperature and air density at prescribed Air/Fuel Valve positions. These
valve positions (% open) may vary depending on the Unit Type and Fuel selected in the
Configuration Menu (Table 2-3). The blower motor speed is varied by providing a DC drive
voltage to the motor which adjusts the rotational speed of the blower to maximize combustion
efficiency.
C-More controllers with software Version 3.07.xx, used on all Benchmark (BMK) sizes and all
KC1000 units, check calibration at 6 prescribed valve positions. Table 2-6 shows a sample
listing, which applies to BMK 750 MBH and BMK 1000 MBH using Natural Gas. Refer to Table
3-2A for default values associated with each unit type and size.
Table 2-6: Sample Combustion Cal Menu (Version 3.07.xx)
Available Choices or Limits
Menu Item Display Minimum Maximum Default
CAL Voltage 18% .25v 8.20v 1.80v
CAL Voltage 30% .25v 8.20v 3.20v
CAL Voltage 45% .25v 8.20v 3.70v
CAL Voltage 60% .25v 8.20v 3.80v
CAL Voltage 80% .25v 8.20v 4.60v
CAL Voltage 100% .25v 8.20v 6.00v
SET Valve Position 0% 100% 0%
Blower Output Monitor Blower Output
Voltage
.00
C-More controllers with software version 3.08.xx, used on Innovation (INN) Water Heaters,
check calibration at 8 prescribed valve positions. Table 2-7 shows a sample listing which applies
to INN 1060 units running on Natural Gas. Refer to Table 3-2B for default values associated
with each INN unit size and fuel used.