Installation Preparations; Installation; Electrical Connection - Maico EZR B Série Instructions De Montage Et Mode D'emploi

UK │ 7. Transport, storage

8. Installation preparations

Important installation
information
Fan operation only permitted with:
● permanent installation in ducts with folded
spiral-seams ducts Ø 250 to Ø 600 to suit
the unit type (nominal size).
● permanent electrical supply cable.
● installation on a wall, ceiling or bracket of
sufficient load-bearing capacity.
● installation with flexible cuffs and flexible
couplings (types EL../ELA..), mounting foot
(FU) and vibration dampers (GP). These
prevent the transmission of vibrations to
the duct system.
● free air inlet or outlet with protection against
accidental contact according to EN ISO
13857, for example with the MAICO SG
protective grille.
Note air flow and rotational direction
 arrows on sticker (S).

9. Installation

NOTICE
Risks of leakages if unit is not sealed
tightly enough.
 Firmly screw fan down to the duct
system at all flange holes. Fit suitable
insulation, sound-deadening and
installation material.
1. Cut folded spiral-seams duct at installation
location if the duct system is already
installed.
2. Secure appropriate mounting foot (type
FU) to fan housing with self-cutting tapping
screws provided. Any installation position.
Make sure that there is free access to
terminal box [7] at the installation location.
3. Transport unit to installation location and
deposit there. Observe Chapter 7.1.
4. Mount pre-fitted fan unit with mounting foot
to wall, ceiling or bracket. Mounting
material of the sufficient size should be
provided by the customer.
16
5. Lay folded spiral-seams ducts flush
against the fan on the inlet and outlet side.
Observe spacing for flexible cuffs or
flexible couplings (types EL../ELA..).
6. Securely screw folded spiral-seams ducts
down to fan flange bores with all screws
using flexible cuffs or flexible couplings
(types EL../ELA..). Ensure seal integrity.
7. With a free inlet, also fit a protective grille
(type SG) as protection against accidental
contact and drawing in.
8. Fit suitable insulation and sound-
deadening material.

10. Electrical connection

DANGER
Danger to life from electric shock.
 Prior to accessing the connection
terminals, switch off all supply circuits.
Switch off mains fuse, secure against
being accidentally switched back on and
position a visible warning sign.
NOTICE
Risk of damage to unit in the event of
short-circuits.
 Insulate any unnecessary cable cores.
Important notes
● Always note the relevant specifications for
electrical installations and when fitting
equipment. In Germany, observe DIN VDE
0100 and the corresponding parts in
particular.
● The fan has to be connected to an
external control device with automatic self-
holding switch-off  Chapter 4.3 Thermal
overload protection. The control device
must not switch on again automatically
after being tripped.
● Pole-changeable motors with speed ratios
of 8/4 or 4/2 have a Dahlander pole-
changing circuit.