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Building Technologies Division User Manual LMS14… CC1U7471en
6 The settings in detail 28.01.2015
6.13.2 Cascade master
If there is more than one heat source, the device with device address 1 assumes the
role of the cascade master. It activates the required functions and shows the additional
menus with the parameters for use with the cascaded system.
Identification of the master role can be effected automatically (Auto) or can be ready set
(Always).
Device
address
Parameters
cascade
master
Number of
heat sources
State of cascade
master
0 No cascade
(zone)
0
1
(internally)
No cascade
(individual boiler)
1 Auto 1
(internally or
externally)
No cascade
(individual boiler)
1 Auto > 1
(internally and
externally)
Cascade
1 Always 1
(internally or
externally)
Cascade
1 Always >1
(internally and
externally)
Cascade
>1
1
(internally)
No cascade
(cascade slave)
= can be any
In a cascaded system, it is recommended to have the cascade master always running.
This is to make certain that the cascade menus and common functions (e.g. common
maintained return temperature) will not be lost if, for some reason, all heat sources
except one are turned off.
Line no. Operating line
6630 Cascade master
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