Changeover Based On Calendar - Siemens RXB Series Basic Documentation

Changeover source
calendar
Flow
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Return
M
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Siemens
Building Technologies
9.2.3

Changeover based on calendar

Calendar-based changeover is configured in the "H/C changeover" function block
(see the checkmark by the calendar symbol in the primary controller, RMU7x0B).
The HC changeover relay in the primary controller acts on heating/refrigeration
generation which is also controlled by the primary controller.
Htg/ClgCoil 1
1
M
1
Precontrol
Heat/refrig distribution zone 1
x
1
H/C changeover
Q
x
2
H/C changeover
Q
x
Pre
H/C changeover
Q
KNX bus communications
Appendix
T
KNX
H/C changeover signal
x
Supervision Controller
1 2 3
S1 S1 S1
Heat demand
S2
S2 S2
S3
23
Q d Y
x
Supervision Controller
1 2 3
S1 S1 S1
Heat demand
S2
S2 S2
S3
23
Q Y
d
x
Supervison
Controller
1 2 3
S1 S1 S1
Heat demand
S2
S2 S2
S3
23
Q d Y
Htg/ClgCoil 2
2
M
2
x
Contoller
Supervision
1 2 3
S4 S4 S4
Refrig demand
Kältebedarf
S5
Q d Y
x
Supervision Controller
1 2 3
S4 S4 S4
Refrig demand
Kältebedarf
S5
Q d Y
x
Supervision Controller
1 2 3
S4 S4 S4
Refrig demand
Kältebedarf
S5
Q d
Y
For internal use only
CE1P3127en
T
2013-04-08