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System Control - ACVMax: 660Y2800 • C
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CASCADE MENU DESCRIPTION AND OPERATION - SOLO (2 PUMPS)
Cascade Menu / Cascade Settings (Cont’d)
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!
O
NLY
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 influence 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!
O
NLY
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 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.
•
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.
