AERCO BMK 1.5 LN October 2012 - Manual (Page 41)

CHAPTER 3
OPERATION
PR1: 10/18//12 AERCO International Inc. • 100 Oritani Dr. • Blauvelt, NY 10913 • Ph: 800-526-0288 Page 41 of 166
GF-120
OMM-0041 0E
Benchmark 1.5LN Low NOx Boiler
Installation, Operation and Maintenance Manual
Table 3-5: Tuning Menu
Available Choices or
Limits
Menu Item Display Minimum Maximum Default
Prop Band 1°F 120°F 70°F
Integral Gain 0.00 2.00 1.00
Derivative Time
(if Unit Type = Boiler
0.00 min 2.00 min 0.00 min
Warmup Prop Band Range = 1 - 120 95
Warmup Int Gain Range = 1 - 200 50
Warmup PID Timer Range = 1 - 240 20
Reset Defaults Yes, No, Are You Sure No
Table 3-6: Combustion Cal Menu
Available Choices or Limits
Menu Item Display Minimum Maximum Default
CAL Voltage 16% .25 8.20 1.80v
CAL Voltage 30% .25 8.20 3.20v
CAL Voltage 45% .25 8.20 3.70v
CAL Voltage 60% .25 8.20 3.80
CAL Voltage 80% .25 8.20 4.60
CAL Voltage 100% .25 8.20 6.00
SET Valve Position 0% 100% 0%
Blower Output Monitor Blower Output Voltage .00
3.9 START SEQUENCE
When the Control Box ON/OFF switch is set to the ON position, it checks all pre-purge safety
switches to ensure they are closed. These switches include:
• Safety Shut-Off Valve Proof of Closure (POC) switch
• Low Water Level switch
• High Water Temperature switch
• High Gas Pressure switch
• Low Gas Pressure switch
• Blower Proof switch
• Blocked Inlet switch