Environmental Protection; Symbols Used In These Instructions; Product Information; Unit Versions - Maico EZR B Série Instructions De Montage Et Mode D'emploi

UK │ 2. Environmental protection

2. Environmental protection

The unit and the packaging contain parts that
can be recycled, and should not end up in the
domestic waste. Unpack the unit. Please
dispose of the packaging material in an
environmentally-friendly way in compliance
with the regulations valid in the country where
you are.
3. Symbols used in these
instructions
Direct risk of danger. Failure to
observe will result in severe
DANGER
injury or death.
Possibly dangerous situation
which could result in severe
WARNING
injury or death.
Possibly dangerous situation
which could result in minor to
CAUTION
moderate injuries.
Possible situation which could
NOTICE
cause damage to the product or
its surroundings.
INFO symbol indicating
important information and tips.
●
Bullet point for information on the
corresponding subject.
Instructions. Follow the instruct-
1.
tions given in the order stated.

4. Product information

4.1 Unit versions

● EZR ... B and EZR 25/4 D: Single-phase
AC models 230 V, 50 Hz
● DZR ... B and DZR 25/4 D: Three-phase
AC and pole-changeable three-phase AC
models 400 V, 50 Hz
14

4.2 Product description

● Duct fans in nominal sizes Ø 250 to Ø 600.
● Any installation position. Air extraction or
ventilation, depending on installation
position.
● The speed of EZR/DZR fans can be
controlled. Exception: The speed of the
DZR 40/2 B cannot be controlled.
● Reversing mode permitted. Flow rate in
opposite air flow direction reduced by
around 35 %. For reversing switch
 Internet or catalogue.
● Thermal properties of fan designed for
continuous operation. The fan motor may
heat up impermissibly if the direction of
rotation is changed frequently.
● EZR units (single-phase AC models) with
capacitor motor Capacitor in the terminal
box is ready to be connected.
● Thermal overload protection as standard.
Exception: On request for DZR 25/4 D and
pole-changeable units.

4.3 Thermal overload protection

The fan motor has thermal protection
(temperature sensor in the motor winding).
The overload protection automatically
switches off the fan via the external control
device in the event of overload (overheating).
Exception: Pole-changeable units and
DZR 25/4 D.
The fan must remain switched off long enough
for the motor and temperature limiter to cool
down, before starting the fan back up. Depen-
ding on size and temperature conditions, it
may take up to 30 minutes to cool down.
Only switch unit on after this.

EZR ...

Potential-free terminal connections, which
must be connected to e.g. an MVE 10 motor
protection switch or the control circuit of a
contactor circuit. The MVE 10 is not suitable
for EZR 25/4 D, EZR 30/6 B and EZR 35/6 B
units.