Hoval TopVent GV, Operating Instructions Manual, Page: 8 / 44

4 Operating modes
Operating modes with TopTronic ® C
The units have the following operating modes:
■ Supply air speed 2 (only TopVent ® MG)
■ Supply air speed 1 (only TopVent ® MG)
■ Recirculation
■ Recirculation speed 1 (only TopVent ® TG, MG)
■ Standby (Night cooling only TopVent ® MG)
The TopTronic ® C control system regulates these operating modes automatically
for each control zone in accordance with the specifications in the calendar.
The following points also apply:
■ The operating mode of a control zone can be switched over manually.
■ Each TopVent ® unit can operate individually in a local operating mode: Off,
Supply air speed 2, Supply air speed 1, Recirculation, Recirculation speed 1.
Code Operating mode Description
SA2 Supply air speed 2
The unit blows fresh air into the room. The fresh air ratio is adjustable.
The heating is regulated according to the heat demand. The room temperature set
value day is active. The unit operates at speed 2 (high air flow rate).
Fan .................................. speed 2
Fresh air damper .............. 10 % open 1)
Heating ............................ on 2)
1) Percentage is adjustable
2) Depending on heat demand
SA1 Supply air speed 1
The same as SA2, but the unit operates at speed 1 (low air flow rate)
Fan .................................. speed 1
Fresh air damper .............. 10 % open 1)
Heating ............................ on 2)
1) Percentage is adjustable
2) Depending on heat demand
REC Recirculation
On/off-operation: If heating is required, the unit draws in room air, heats it and blows
it back into the room. The room temperature set value day is active.
Fan .................................. speed 1 / 2 1)
Fresh air damper .............. closed
Heating ............................ on 1)
1) Depending on heat demand
DES ■ Destratification:
To avoid heat build-up under the ceiling, it may be appropriate to switch on the fan
when there is no heat demand (either in permanent operation or in on/off opera -
tion depending on the temperature stratification, as desired).
Fan .................................. speed 2
Fresh air damper .............. closed
Heating ............................ off
REC1 Recirculation speed 1
The same as REC, but the unit operates only at speed 1
(low air flow rate)
Fan .................................. speed 1
Fresh air damper .............. closed
Heating ............................ on 1)
1) Depending on heat demand
DES ■ Destratification:
The same as for REC, but the unit operates only at speed 1
Fan .................................. speed 1
Fresh air damper .............. closed
Heating ............................ off
ST Standby
The unit is ready for operation. The following operating modes are activated if
required:
CPR ■ Cooling protection:
If the room temperature drops below the set value for cooling protection, the unit
heats up the room in recirculation operation.
Fan .................................. speed 2
Fresh air damper .............. closed
Heating ............................ on
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TopVent ® TG | GV | MG
Operating instructions
Operating modes
4 220 656-en-03 4 220 656-en-03