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Siemens Building Technologies
Basic Documentation RVA47.320
CE1P2379E
HVAC Products
Description of the heating engineer settings
15.07.2002
4.61.1
Changeover of operating mode (remote telephone
switch) -
Setting 0 / 1
A remote telephone switch is a potential-free relay contact, e.g. in the form of a modem,
which can be switched by making a phone call plus dialing a code.
The operating mode is changed when the contact connected to terminal H1 (e.g. a
remote telephone switch) closes. In that case, the LEDs in the operating mode buttons
and
will flash.
Whether or not d.h.w. heating takes place when the remote telephone switch is
activated depends on the setting made:
Setting 0:
D.h.w. heating is locked when changeover is activated.
Setting 1:
D.h.w. heating remains released when changeover is activated.
Activation of this function will produce different actions, depending on the function of
the controller within the LPB system (also refer to ”Local Process Bus (LPB), Basic
Documentation, System Engineering, document no. CE1P2370E).
The effect depends on the setting made on operating line 145.
•
Changeover of all controllers in the entire LPB system
Prerequisite:
–
Operating line 145 must be set to 1 (range of action = entire
system)
–
The contact must be connected to the master controller in
segment 0
Possible address: Device address 1 (line 140)
Segment address 0
(operating line 141)
Effect:
–
All controllers in the system switch to operating mode
–
With setting 0, d.h.w. heating is switched off in the entire system;
with setting 1, it is released in the entire system
–
With all controllers, operating mode changeover with the buttons is
no longer possible
–
When the contact of the remote telephone switch opens, all
controllers will return to the operating mode selected last
Check:
–
Buttons
or
+
flash on all controllers in the system
1)
1)
With setting 0 as selected above (d.h.w. heating locked), the two buttons
and
will flash.
With setting 1 as selected above (d.h.w. heating remains released), only operating
mode button
will flash.
Description
D.h.w.
Effect
Changeover of system
