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Siemens Schweiz AG User Manual CE1U2354en
HVAC Products Faults 23. August 2007
Economy mode can be selected from menu ”Special operation / service” (operating line
7139).
In Economy mode, external heat sources on the LPB are operated as follows:
Off: Remains locked
Only DHW: Released for DHW charging
On: Always released.
Clock
6640 Clock mode
Autonomously
Slave without remote
Slave with remote setting
Master
6650 Outside temp source
This setting defines the impact of the system time on the controller’s time setting. The
impact is as follows :
Autonomously: The time of day on the controller can be readjusted
The controller's time of day is not matched to the system time
Slave without remote adjustment: The time of day on the controller cannot be
readjusted
The controller's time of day is constantly and automatically matched to the system
time
Slave with remote adjustment: The time of day on the controller can be readjusted;
at the same time, the system time is readjusted since the change is adopted from the
master.
The controller's time of day is still automatically and constantly matched to the
system time
Master: The time of day on the controller can be readjusted
The time of day on the controller is used for the system. The system time will be
readjusted
Only 1 outside temperature sensor is required in the LPB plant. This sensor is
connected to a freely selectable controller and delivers via LPB the signal to the
controllers without sensor.
The first numeral to appear on the display is the segment no. followed by the device no.
6.21 Faults
When a fault is pending, an error message can be displayed on the info level by
pressing the Info button. The display describes the cause of the fault.
Line no. Operating line
6710 Reset alarm relay
When a fault is pending, an alarm can be triggered via relay QX... The QX... relay must
be appropriately configured.
This setting can be used to reset the alarm relay.
Line no. Operating line
6740 Flow temp 1 alarm
6741 Flow temp 2 alarm
6743 Boiler temp alarm
6745 DHW charging alarm
6746 Flow temp., Cooling 1 alarm
Ext source with eco mode
Clock mode
outside temperature
source
A
cknowledgements
Temperature alarms
RVS43.. onl
y
143


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