AERCO Esteem Boiler with EZ-Set Controller - Manual (Page 165)

GF-135 Esteem 399 Low NOx Boiler
Chapter 18
OMM-0089_0A Installation, Operation & Maintenance Manual Controller Operation
18.9.11 CH Integral Gain (Default: 245)
CH Integral Gain allows the cascade response to be adjusted for a central heating call. CH
Integral Gain has the greatest influence when the system temperature is close to the setpoint.
Press the LEFT or RIGHT buttons to adjust the CH Integral Gain then press the OK button to
store the setting.
Figure 18-82: CH Integral Gain Menu
Increase CH Integral Gain:
• The Cascade System will take longer to reach the setpoint, but setpoint overshooting is
minimized.
• If the setpoint is reached too quickly, increase the CH Integral Gain value by 2. Perform
Cascade Auto-detection and initiate a central heating call. Observe the cascade response
and make further adjustments if necessary.
Decrease CH Integral Gain:
• The Cascade System will reach setpoint faster, but overshooting the setpoint may occur.
• To reach the setpoint faster, decrease the CH Integral Gain value by 2. Perform Cascade
Auto-detection and initiate a central heating call. Observe the cascade response and make
further adjustments if necessary.
NOTE
Only make adjustments to this setting after consulting AERCO
Technical Support. Improper adjustment of CH Integral Gain could
lead to temperature fluctuations and erratic cascade operation.
Page 165 of 188 AERCO International, Inc. • 100 Oritani Dr. • Blauvelt, NY 10913 OMM-0089_0A
MC1 06/19/14 Ph.: 800-526-0288