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System Control - ACVMax: 660Y2800 • B
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CASCADE MENU DESCRIPTION AND OPERATION  SOLO 2 PUMPS
Cascade Menu / Cascade Settings (Contd)
Cascade Setting
Stage Delay 60 sec
Minimum Firing Rate 25%
Max. Firing Rate 250 kW
CH / DHW Boilers 0
Auto Rotation Enabled
CH Prop. Gain 7
WARNING!
ONLY ADJUST THIS SETTING
WHEN INSTRUCTED TO BY
ACV SUPPORT.
P
RESS OK BUTTON TO ADJUST
SETTING, ANY OTHER BUTTON TO
KEEP CURRENT SETTINGS.
CH Prop. Gain
7
1 255
CH Proportional Gain allows the cascade response to be adjusted for a central heating call. CH
Proportional Gain has the greatest inuence when the system temperature is far away from the
setpoint.
Press the LEFT or RIGHT buttons to adjust the CH Proportional Gain then press the OK button
to store the setting.
Increase CH Proportional Gain
- The Cascade System will reach setpoint faster, but overshooting the setpoint may occur.
- To reach the setpoint faster, increase the CH Proportional Gain value by 2. Perform Cascade
Autodetection and initiate a central heating call. Observe the cascade response and make
further adjustments if necessary..
Decrease CH Proportional Gain
- The Cascade System will take longer to reach the setpoint, but setpoint overshooting is
minimized.
- If the setpoint is reached too quickly, decrease the CH Proportional Gain value by 2. Perform
Cascade Autodetection and initiate a central heating call. Observe the cascade response
and make further adjustments if necessary
Default: 7
Please consult ACV’s technical Support before making any adjustments. Improper
adjustment of CH Proportional Gain could lead to temperature fluctuations and
erratic cascade operation.
Cascade Setting
Minimum Firing Rate
25%
Max. Firing Rate 250 kW
CH / DHW Boilers 0
Auto Rotation Enabled
CH prop. Gain 7
CH Integral Gain 245
WARNING!
ONLY ADJUST THIS SETTING
WHEN INSTRUCTED TO BY
ACV SUPPORT.
P
RESS OK BUTTON TO ADJUST
SETTING, ANY OTHER BUTTON TO
KEEP CURRENT SETTINGS.
CH Integral Gain
245
1 255
CH Integral Gain allows the cascade response to be adjusted for a central heating call. CH In-
tegral Gain has the greatest inuence 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.
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 Cas-
cade Autodetection 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
Autodetection and initiate a central heating call. Observe the cascade response and make
further adjustments if necessary
Default: 245
Please consult ACV’s technical Support before making any adjustments. Improper
adjustment of CH Integral Gain could lead to temperature fluctuations and erratic
cascade operation.
47


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