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Central summer changeover (LPB)
Central operating mode changeover via LPB
Building Technologies Division
6.24.3
Central functions
Note!
These settings are only relevant for device address 1.
With LPB-capable devices, the basic unit with LPB device address = 1 can provide the
function of Central summer operation changeover.
To do this, the basic unit distributes the state of its own summer/winter heating limit of
heating circuit 1 to the other devices on the LPB and forces their heating circuits into
ECO mode, unless they operate in Comfort mode.
Note!
Central changeover is mandatory only when changing to Summer operation. When
the central basic unit changes back to Winter mode, the local state applies again to
all the other devices and this state might be Summer operation, for example.
Distribution is controlled in the central basic unit via 2 parameters:
1. Summer/winter heating limit (730/1030/1330):
- Local:
The summer heating limit is not distributed
- Central:
The summer heating limit is distributed to all heating circuits according
to the set range of action
1.
The range of action on the LPB depends on the segment address and Action
changeover functions (6620):
- Segment address = 0 and range of action = segment:
Summer changeover only acts on the basic units in their own segment 0
- Segment address = 0 and range of action = system:
Summer changeover acts on all basic units in all segments (0...14)
- Segment address > 0:
The parameter has no significance. Summer changeover only acts on the
basic units in their own segment
Note!
Action changeover functions (6620) also influences the distribution of the other
Central changeover functions such as Optg mode changeover.
With LPB-capable devices, the basic unit with LPB device address = 1 can provide the
function of Central optg mode changeover. Then, the changeover actions on the central
basic unit (via input Hx) also act on the heating circuits and DHW of the other basic
units on the LPB.
User Manual LMS14...
6 The settings in detail
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CC1U7471en
28.01.2015
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