ID Alarm
Cause
System reaction
Remedy
911 Battery replacement required
The backup battery is empty.
The date is wrong after an interruption to
the power supply.
Correct the date.
Call Hoval customer service.
912 BACnet client offline
The client has not communicated with
the zone controller in the last 300 s.
The system continues to run with the
last-received values.
Check the BACnet communication.
Rectify fault.
8 Adjustable parameters
The following list shows the parameters that can be set in the operator level:
Parameters
Setting range
Default value
Unit
Alarm room temperature MAX limit
5 … 60
55
°C
Alarm room temperature MIN limit
5 … 60
5
°C
Alarm supply air temperature MAX limit
0 … 70
60
°C
Alarm supply air temperature MIN limit
0 … 70
5
°C
Duration of temporary REC operation
1 … 9999
30
min
Duration of temporary ST operation
1 … 9999
30
min
Fan setpoint night cooling
50 … 100
100
%
Min limit discharge direction
0 … 100
0
%
Operating hours filter exchange
0 … 99999
3000
h
Operating selector switch RECU recirculation unit
ST/ REC/REC1/EXT/AUTO
ST
–
Operating selector switch REMU mixed air unit
ST/REC/REC1/SA1/SA2/EXT/AUTO
ST
–
Room temperature setpoint cooling protection
5.0 … 40.0
19
°C
Room temperature setpoint day
5.0 … 40.0
21
°C
Room temperature setpoint overheat protection
5.0 … 40.0
25
°C
Room temperature start point for summer shifting
20 … 40
40
°C
Selector switch night cooling
0 = OFF / 1 = AUTO
1
–
Set value fresh air ratio (only with REMU)
0 … 100
10
%
Setpoint room temperature night cooling
15 … 50
21
°C
Weekly calendar recirculation unit
50 entries
ST / REC / REC1 / SA1 / SA2
–
Weekly calendar recirculation unit/curtain
50 entries
ST/REC/REC1
–
23
TopTronic
®
C
System control for TopVent
®
Adjustable parameters
4 216 689-en-01
