
3.3 Operating modes
The RoofVent
®
KG has the following operating modes:
■
Ventilation
■
Ventilation (reduced)
■
Air quality
■
Recirculation
■
Exhaust air
■
Supply air
■
Standby
The TopTronic
®
C control system regulates these operating modes automati
-
cally 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 RoofVent
®
unit can operate individually in a local operating mode:
Off, Recirculation, Supply air, Exhaust air, Ventilation.
Code
Operating mode
Description
VE
Ventilation
The unit blows fresh air into the room and exhausts polluted room air. The room
temperature set value day is active. Depending on the temperature conditions, the
system continuously controls:
■
the energy recovery
■
the heating
Supply air fan ................... on *)
Exhaust air fan ................. on *)
Energy recovery ...............
0-100 %
Extract air damper ............ open
Recirculation damper ....... closed
Heating ............................
0-100 %
*) Adjustable flow rate
VEL
Ventilation (reduced)
As VE, but the unit only operates with the set minimum values for the supply and
exhaust air volumes
Supply air fan ................... MIN
Exhaust air fan ................. MIN
Energy recovery ...............
0-100 %
Extract air damper ............ open
Recirculation damper ....... closed
Heating ............................
0-100 %
AQ
Air quality
This is the operating mode for demand-controlled ventilation of the room. The room
temperature set value day is active. Depending on the temperature conditions, the
system continuously controls:
■
the energy recovery
■
the heating
Depending on the room air quality or room air humidity, the system operates in one of
the following operating states:
AQ_REC
■
Air quality Recirculation:
When air quality is good and air humidity appropriate, the unit heats in
recirculation operation.
Like REC
AQ_ECO
■
Air quality Mixed air:
When ventilation requirements are medium, the unit heats in mixed air operation.
The supply and exhaust air volume is based on the air quality.
Supply air fan ...................
MIN-MAX
Exhaust air fan .................
MIN-MAX
Energy recovery ...............
0-100 %
Extract air damper ............
50 %
Recirculation damper .......
50 %
Heating ............................
0-100 %
AQ_VE
■
Air quality Ventilation:
When ventilation requirements are high or the room air humidity is too high, the
unit heats in pure ventilation operation. The supply and exhaust air volume is
based on the air quality.
Supply air fan ...................
MIN-MAX
Exhaust air fan .................
MIN-MAX
Energy recovery ...............
0-100 %
Extract air damper ............ open
Recirculation damper ....... closed
Heating ............................
0-100 %
8
9
RoofVent
®
KG
Operating instructions
Construction and operation
Construction and operation
4 220 755-en-00