Maico DZR B Series, Mounting And Operating Instructions, Page: 17 / 38

4. Product information
│ UK
15
DZR ...
Potential-free terminal connections, which
must be connected to e.g. an MV 25 motor
protection switch or the control circuit of a
contactor circuit.
Pole-changeable un
its DZR … and
DZR 25/4 D
Overload protection with a motor protection
switch provided by the customer must be
ensured for pole-changeable units. Use an
optional pole changing switch, e.g. MAICO
pole changing switch P1 or WP1, to change
over the speed.
5. Switching on/off
The fan is switched on or off with a switch
that is to be provided by the customer.
The speed of EZR units can be controlled
steplessly with an optional speed controller.
EZR/DZR units can be switched in steps
using an optional 5-step transformer.
6. Technical data
For technical data,

the rating plate.
● For rating plate 
the fan or these
instructions.
● For dimensions and characteristic curves

catalogue or Internet.
● Internet 
maico-ventilatoren.com or
QR code on the fold-out page.
Degree of protection
IP 55
*
Exception: IP 54 for
EZR/DZR …
D
Air volume, free outlet
or free inlet 500 to 14,800 m³/h, de-
pending on unit variant
Weight 5.7 to 41 kg, depen-
ding on unit variant
Maximum air flow
temperature 40 °C
* IP 55 protection only guaranteed in hori-
zontal installation position or, in the case
of vertical installation, with downward air
flow.
7. Transport, storage
7.1 Transport
WARNING
Danger to life if impermissible means of
transport or lifting gear are used.

Weight (

note technical data and
centre of gravity (centre).

Observe the maximum permitted loading
capacity for lifting gear and means of
transport.

Do not stand under a suspended load.
CAUTION
Risk of cuts from metal housing plates
with sharp edges.

Wear protective gloves.
NOTICE
Risk of damage to unit if means of
transport are incorrectly attached.

Do not place load on sensitive
components, such as the impeller or
terminal box.
7.2 Storage
● Only store fan horizontally in a suitable,
dry room: ambient temperature - 10 to
+ 60 °C.
● Before installing, check that the motor
bearing is working properly.
● MAICO accepts no liability for corrosion
damage caused by improper storage, e.g.
storage in a damp room.