Intended Use; Foreseeable Cases Of Misuse; Humidity Control Function - Maico ECA 150 ipro Mounting And Operating Instructions

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.
● Master-slave operation of RC units is only
possible with similar kinds of ECA 150 ipro
RC/RCH/KRC/KRCH units.

2.5 Foreseeable cases of misuse

Maico is not liable for damages caused by
improper use (use other than intended use).
Certainly do not use units of the ECA 150
ipro series:
● 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.
Master-slave operation of RC units is only
possible with similar kinds of ECA 150
ipro RC/RCH/KRC/KRCH units.
2. Product information │ UK

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.
Standby operation: If the relative humidity
falls below the reference value during
standby operation, the newly established
reference value is saved ‒ minimum
reference value 48 % r. h.
If the room humidity rises
If the humidity rises by 7 % r. h., the fan
activates at performance level 1 (200 m³/h).
If the humidity increases even further, the unit
switches to performance level 2 (250 m³/h).
If there are no further increases, the fan con-
tinues to run at performance level 1 (200 m³/h)
until the humidity again falls below the saved
reference value.
If the value falls below the reference value
H and KH: Overrun operation starts with the
set overrun time. The current reference value
is then saved.
RCH and KRCH: No overrun operation.
Value does not fall below reference value
during 1 hour
H and KH: Overrun operation starts. Fan
then switches off.
RCH and KRCH: The fan switches off.
Operation using light switch and/or radio
switch
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.
Optionally, RCH/KRCH units can be
operated in 2 stages using a radio switch.
Switching through the DS RC or window
contact is possible during humidity operation.
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