Maico ECA 150 ipro B, Mounting And Operating Instructions, Page: 21 / 54

2. Product information │ EN
19
2.4 Intended use
● ECA 150 ipro … and ECA 150 ipro K …
are small room fans for ventilating
bathrooms, WCs, storage rooms,
detached houses, offices and similar
areas.
● These units are only intended for domestic
use and similar purposes.
● Operation is only permitted when:
● fixed installation within buildings.
● surface installation on walls, ceilings or
ducts.
● air supply via shaft or duct.
● permanent electrical connection
(recessed-mounted or surface-mounted)
● with sufficient space from the wall or
ceiling.
● unit is completely installed.
2.5 Foreseeable cases of misuse
Maico is not liable for damages caused by
improper use (use other than intended use).
Under no circumstances should the unit
be used:
● in combination with range hoods or
laboratory extractors.
● in single air extraction systems according
to DIN 18017-3.
● close to flammable materials, liquids or
gases.
● to convey chemicals, aggressive gases or
vapours.
● in explosive atmospheres.
● outdoors
● if there is no protection against accidental
contact with the impeller on the discharge
side in accordance with EN ISO 13857.
2.6 Humidity control function
(H, KH, RCH and KRCH units)
Once the fan is installed, it adjusts itself to the
prevailing room humidity (relative humidity).
This humidity value is saved as the first
reference value. The reference value does
not have to be specified manually.
If the relative humidity falls below the
reference value during standby operation, the
newly established reference value is saved.
The lowest possible reference value is 48 %
relative humidity.
If the room humidity increases by 7 % relative
humidity, the fan engages automatically at
performance level 1 (200 m³/h).
● If the room humidity increases even
further, the unit switches to performance
level 2 (250 m³/h).
● If there are no further increases, the unit
continues to run at performance level 1
(200 m³/h) until the humidity again falls
below the saved reference value.
If the humidity falls below the reference value,
the fan goes into overrunmode with the set
overrun time (generally 8 minutes for RCH
and KRCH units). The current reference
value is then saved. If the humidity does not
fall below the reference value within 60
minutes, the unit switches to the set overrun
mode and then switches off.
H and KH units can also be operated using
the light switch. When the light is switched on
the set operating program starts with the start
delay (

Chapter 7.4). The operating
program has priority over the automatic
humidity process. When the light is switched
off, the unit continues to run until the
remaining overrun time has passed. The
automatic humidity process is then assigned
maximum priority again and controls the unit
as described above.
RCH/KRCH units: 2 levels can be operated
by radio switch. The unit cannot be operated
with RLS RC, DS RC or window contact
during humidity operation.