90
CASCADE CONNECTION
4.7
Parameters specific to cascade systems
Parameters are listed base on the reference menu.
Reference Menu
M1
Parameters Menu
M2
Cascaded module configuration menu
M3
Cascaded boiler configuration menu
M4
Appliance configuration menu
Access type
U
End user
I
Installer
O
Manufacturer
Menu Par.
No.
Nr. dis-
played
Display
Description
Range
Factory
setting
UM
Access
type
Category
M2
72
Permit
Emergency
Mode
Activates the emergency mode. This mode
comes on when communication between
Managing and the primary circuit's probe is
lost. In this event, if Par. 72 is set to "Yes", the
cascade is initiated, working to the fixed set-
point determined by Par. 74.
Yes/No
Yes
U
Cascade
M2
74
Emergency
Set-point
Set-point active in emergency mode.
20…65
70
°C
I
Cascade
M2
75
Delay
Per Start
Next
Mod.
Defines the stand-by time in seconds to
restart the subsequent cascade module in
normal start mode.
5…255
120
Sec.
I
Cascade
M2
76
Delay Per
Stop Next
Mod.
Defines the stand-by time in seconds to
switch off the last cascade module on in
normal Off mode.
5…255
30
Sec.
I
Cascade
M2
142
Delay
Quick
Start
Next
Defines the stand-by time in seconds to re-
start the next cascade module in quick start
mode.
5…255
60
Sec.
I
Cascade
M2
143
Delay
Quick
Stop Next
Defines the stand-by time in seconds to
switch off the last cascade module on in
Quick Stop mode.
5…255
15
Sec.
I
Cascade
M2
77
Hyst.
Down
Start
Module
Defines by how many degrees the tempera-
ture measured by the primary circuit's probe
must fall below the set-point in order for the
subsequent module to be started after the
time interval set by Par. 75.
0…40
5
°C
I
Cascade
M2
78
Hyst.
Up Stop
Module
Defines by how many degrees the tempera-
ture measured by the primary circuit's probe
must go above the set-point in order for the
subsequent module to be switched off after
the time interval set by Par. 76.
0…40
4
°C
I
Cascade
M2
144
Hyst.
Down
Quick
Start
Defines by how many degrees the tempera-
ture measured by the primary circuit's probe
must go below the set-point in order for
the subsequent module to be started after
the time interval set by Par. 142 (quick-start
mode).
0…40
20
°C
I
Cascade
M2
145
Hyst. Up
Quick
Stop
Defines by how many degrees the tempera-
ture measured by the primary circuit's probe
must go above the set-point in order for the
subsequent module to be switched off after
the time interval set by Par. 143 (quick stop
mode).
0…40
6
°C
I
Cascade
M2
146
Hyst. Up
Stop All
Defines by how many degrees the tempera-
ture measured by the primary circuit's probe
must go above the set-point in order for all
"On" modules to be switched off at the same
time.
0…40
8
°C
I
Cascade
M2
147
Number
of Units
Defines the number of modules of which the
cascade consists.
1…16
8
I
Cascade
