S-CB Px 120 Manual
79
11.4.
Cascade control
→
The following information is also found in the specific cascade manual, supplied standardly with Strebel
cascade accessories or on request.
Before commissioning a cascade installation, a number of parameters has to be changed.
These parameters can be programmed on the unit itself, without the use of a computer.
Changes in parameter may only be carried out by a skilled commissioning/service engineer, who has had
specific training for setting up the S-CB Px 120 range boilers. He will be able to check whether the installa-
tion functions correctly after the parameter change has been done.
For programming
all parameters
of the boilers one needs to have a laptop with the appropriate Strebel software
and an interface cable for connecting the laptop to the boiler control (one order no.: S04.016.586). This software
is used for programming but also shows all measured temperatures and cascade behaviour during operation and
service/fault history.
11.4.1. P
ARAMETER SETTINGS FOR CASCADED BOILERS
Before programming the cascaded boilers, make sure that all boilers are connected (wire) with each other. Use
connection 15 and 16 of each boiler.
Remind
: do not alternate these connections, so always connect 15 to 15 and 16 to 16.
After connection every boiler must be programmed. This can be done at the control panel. Press the [MENU] but-
ton and select the [PARAMETER] menu. See graphics below.
Operating screen:
H E A T I N G : S T A N D - B Y
> > > : 1 2 3 . 4 ° C ( 1 2 3 . 4 ° C )
Press [MENU]
Main menu screen:
M a i n M e n u
S e t p o i n t s
Select "Parameter" using [
◄
] & [
►
] and press [ENTER]
After this, use the password for installer’s level 2.
Parameter menu:
I n s t a l l e r c o d e
0 0 0 0
Enter the 4-digit code with the [
◄
] & [
►
] and the
[
▲
] & [
▼
] buttons and select [ENTER]
The code will blink a few seconds and when entered
correctly, the following parameters will be displayed.
Summary of Contents for S-CB Px 120
Page 2: ...S CB Px 120 Manual 2 ...
Page 6: ...S CB Px 120 Manual 6 ...
Page 33: ...S CB Px 120 Manual 33 9 4 Electrical schematics ...
Page 34: ...S CB Px 120 Manual 34 ...
Page 111: ...S CB Px 120 Manual 111 ...
Page 115: ...S CB Px 120 Manual 115 weather dependent control 49 73 ...
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