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Appliance description
2.2
General safety instructions
WARNING Injury
!
The appliance may be used by children over 8 years of
age and persons with reduced physical, sensory or men-
tal capabilities or a lack of experience and expertise,
provided that they are supervised or they have been
instructed on how to use the appliance safely and have
understood the potential risks. Children must never play
with the appliance. Cleaning and user maintenance must
not be carried out by children without supervision.
WARNING Injury
The discharged cold air can cause condensation to be
formed in the vicinity of the air discharge.
f Ensure that no risk of slipping due to wet conditions
or ice formation occurs on adjacent footpaths and
driveways at low temperatures.
We guarantee trouble-free function and operational reliability
only if original accessories and spare parts intended for the unit
are used.
Never operate the unit without filters.
In the event of damage, disconnect the unit from the power supply.
Isolate the unit from the power supply before carrying out cleaning
and maintenance work.
A safety switch switches off the fans if the unit cover is opened
while the unit is in operation. The safety switch must not be de-
activated. Avoid contact with the rotating fan as this can lead to
severe injury.
Operation with open flue combustion equipment for homes with
ventilation systems is subject to DIN 1946-6. Please comply with
the fire safety requirements and the ZIV (Federal Association of
Chimney Sweeps) datasheet. The local flue gas inspector must
be consulted.
Never adjust the settings of supply and extract air vents inside the
rooms. These have been set up by a qualified contractor during
commissioning.
2.3
Test symbols
See type plate on the appliance.
3.
Appliance description
The appliance is a decentralised ventilation unit with heat recov-
ery. One unit is deployed in each room for controlled ventilation.
The outdoor air and the exhaust air are routed through the ex-
ternal wall.
The unit is equipped with a programmable logic controller which
enables you to adjust the unit to your individual requirements. The
required level of ventilation can be set using individual time pro-
grams, with optional integration of, e.g. CO
(motion sensors). If a power outage occurs, the control unit will
retain the set parameters. The units can be networked to allow
adjustment and monitoring from a central point.
18
| VRL-C 300/625/870
Extract air and outdoor air are filtered by separate filters. The ex-
tract air and outdoor air flow through a cross-countercurrent heat
exchanger. The outdoor air absorbs heat taken from the extract air.
This enables a large proportion of thermal energy to be recovered.
3.1
Decentralised ventilation
with supply and extract
air grilles
Central ventilation with
ducted supply and ex-
tract air
Temperature and humid-
ity controlled preheating
coil
Reheating coil
Fault indicator
Expansion board
The expansion board provides inputs and outputs for the following
functions that need to be connected externally.
expansion board
functions
Interm.vent
Minimum vent.
External smoke alarm
Ext. off
External hydraulic re-
heating coil
4.
4.1
1 ON/OFF switch
When the power supply is switched on using the ON/OFF switch,
the control unit starts up the system and the "Alarm" button flash-
es red.
, VOC or PIR sensors
2
After the system has started up, the default display is shown.
Equipment features and functions
VRL-C ... g
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Settings
Switching the appliance on
1
Note
Do not press any buttons while the system is starting up.
VRL-C ... g
VRL-C ... d
VRL-C ... d
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