7.2 Alarm processing
Precondition: The
User
operator level is active (password entry see section 2.6).
O
verview i 01/01
ZONE Mode SA2
REMU 01 02
RECU 61 62
10:18 ! 28.07.17
Calling up the alarm list from any menu:
■
Shortly press the button .
■
The alarm list appears.
Alarms 1/006
Date Time Unit ID
-
28.07 10:00 0102 0208
-04.08 14:11 0102*0301
■
Navigate to the alarm with .
■
Confirm with
.
■
Navigate to the next alarm to be
confirmed with
.
■
Confirm with
, and so on.
Alarms 1/006
Date Time Unit ID
-
88.07 10:00 0102!0208
■
The icon for the alarm status changes
to '
!
'.
■
Rectify fault.
■
If required, contact Hoval customer
service.
Alarms reset:
■
Press key and hold it down for
3 seconds.
■
Back to
Overview
: Press .
7.3 Alarm list
The following table contains an overview of all alarms and their cause. Contact
Hoval customer service to have faults rectified.
ID Alarm
Cause
System reaction
Remedy
1 Frost protection (supply air)
The supply air temperature has
dropped below 13 °C.
The mixing valve heating opens contin-
uously. The (optional) heating pump
switches on.
Check the heat supply and the
unit hydraulics, rectify error.
Reset alarm.
The supply air temperature has
dropped below 8 °C.
The frost protection alarm (supply air) is
tripped.
The heating mixing valve opens 100%.
The unit switches off.
2 Frost protection (water return)
The return temperature has dropped
below 15 °C.
The mixing valve heating opens contin-
uously. The (optional) heating pump
switches on.
The return temperature has dropped
below 7 °C.
The frost protection alarm (water return) is
tripped.
The heating mixing valve opens 100%.
The unit switches off.
3 Fault supply air fan 1
The fan motor has a fault or the corre-
sponding circuit breaker has tripped.
The unit switches off.
Switch on automatic circuit
breaker again.
5 Main switch off
The main switch is set to '0'.
–
Set main switch to position '1'.
20
TopTronic
®
C
System control for TopVent
®
Alarms
4 216 689-en-01
