System Control - ACVMax: 660Y2800 • C
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Cascade / Cascade Settings (Cont’d)
Cascade Setting
Max. Firing Rate 250 kW
CH / DHW Boilers 0
Auto Rotation
Enabled
CH Prop. Gain
7
CH Integral Gain
245
DHW 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
.
DHW Prop. Gain
7
1
255
DHW Proportional Gain
allows the cascade response to be adjusted for a domestic hot water
call. DHW 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 DHW Proportional Gain then press the
OK
button
to store the setting.
• I
ncrease DHW Proportional Gain
- The Cascade System will reach setpoint faster, but overshooting the setpoint may occur.
- To reach the setpoint faster, increase the DHW Proportional Gain value by 2. Perform Cas-
cade Autodetection and initiate a domestic hot water call. Observe the cascade response
and make further adjustments if necessary.
•
Decrease DHW 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 DHW Proportional Gain value by 2. Per-
form Cascade Autodetection and initiate a domestic hot water 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 DHW Proportional Gain could lead to temperature fluctuations and
erratic cascade operation.
Cascade Setting
CH / DHW Boilers 0
Auto Rotation
Enabled
CH Prop. Gain
7
CH Integral Gain
245
DHW Prop. Gain
7
DHW Integral Gain
245
DHW Integral Gain
245
1
255
DHW Integral Gain
allows the cascade response to be adjusted for a domestic hot water call.
DHW Integral Gain has the greatest influence when the system temperature is close to the set-
point.
Press the
LEFT
or
RIGHT
buttons to adjust the DHW Integral Gain then press the
OK
button to
store the setting.
•
Increase DHW 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 DHW Integral Gain value by 2. Perform
Cascade Autodetection and initiate a omestic hot water call. Observe the cascade response
and make further adjustments if necessary.
•
Decrease DHW Integral Gain
- The Cascade System will reach setpoint faster, but overshooting the setpoint may occur.
- To reach the setpoint faster, decrease the DHW Integral Gain value by 2. Perform Cascade
Autodetection and initiate a domestic hot water 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 DHW Integral Gain could lead to temperature fluctuations and
erratic cascade operation.
CASCADE MENU DESCRIPTION AND OPERATION - SOLO (2 PUMPS)
