IQHeat
User manual
28
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
Explanation
Max.
deviation
0…50 K
Maximum
difference
between actual
value and set
point before an
alarm
Start delay
0…36000 s
After the set
time, the
function is
enabled after
start.
Delay
0…65535 s
Time delay for
high and low
priority alarms.
Priority
•
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.
4. Select
Flow temperature
.
5. Select the value to be changed, press
OK.
Parameter
Settings range
Explanation
High limit
alarm
0…200°C
At which the
temperature alarm
is enabled
Low limit
alarm
0…200°C
At which the
temperature alarm
is enabled
Alarm delay
0…18000 s
Time delay for high
and low priority
alarms.
Alarm priority
&
Fault priority
•
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.
6. Use ESC and go back and select
Circ.temperature
and
make the settings in the same way as for Flow
temperatures.
