Change Alarm Limits For Heating, Cooling And Hot Water Circuits - Siemens IQHeat User Manual

IQHeat
User manual
9.7

Change alarm limits for heating, cooling and hot water circuits

Alarm limits for flow temperature, return temperature and deviation alarms for flow temperature can be set per
preferences.
The change is made in the same way as for heating, cooling, and hot water circuits.
Here the alarm change is described for the hot water circuit deviation alarm and alarm for the flow temperature.
1. From the Main index select Commissioning.
2. Now select Plant settings > Domest.hot water.
3. Select the parameter to be changed, press OK.
Parameter Settings range
0...50 K
Max.
deviation
0...36000 s
Start delay
0...65535 s
Delay
•
Priority
•
•
•
•
4. Select Flow temperature.
5. Select the value to be changed, press OK.
Parameter Settings range
0...200°C
High limit
alarm
0...200°C
Low limit
alarm
0...18000 s
Alarm delay
•
Alarm priority
•
&
Fault priority
•
•
•
6. Use ESC and go back and select Circ.temperature and
make the settings in the same way as for Flow
temperatures.
28
Explanation
Maximum
difference
between actual
value and set
point before an
alarm
After the set
time, the
function is
enabled after
start.
Time delay for
high and low
priority alarms.
•
Plant.off (A) Plant stopped.
•
Critical (A) Plant shut
down.
•
Low (B) Affected part of
the plant is shut
down.
•
Warning (C) Only message.
•
No alarm No message,
no alarm.
Explanation
At which the
temperature alarm
is enabled
At which the
temperature alarm
is enabled
Time delay for high
and low priority
alarms.
•
Plant.off (A) Plant stopped.
•
Critical (A) Plant shut
down.
•
Low (B) Affected part of
the plant is shut
down.
•
Warning (C) Only message.
•
No alarm No message,
no alarm.