Maico ERM 15, Mounting & Operating Instructions, Page: 5 / 8

Electrical connection
•
Only qualified electricians are permitted to make
the electrical connections, according to the
wiring diagram (see page 12 ... 14).
•
Before working with terminal boxes, always switch
off the main fuse at the fuse box and post
warning signs advising not to re-apply power.
This is particularly valid where the switch is some
way away from the fan.
•
The connecting cable between the power source
and the terminal box must be a permanently laid
cable. The cables must be fed into the terminal
box so that the cable grommet fits tightly round
the non-metallic sheated cable. If the power
cable is not installed correctly, the protection
class indicated on the rating plate cannot be
guaranteed and no claims can be made under
the terms of the warranty.
•
The fan motor is thermally protected. It
must be connected to an external control
unit with automatic switch-off,
such as the
Maico MVE 10 motor protection switch for
example, or to a self-latching contactor circuit.
The control unit should not be able to switch
itself back on after being triggered.
Procedure
1. Wire up the fan according to the wiring diagram.
2. Connection should be made from both motor
connector blocks „TK“ to the control unit when
using ERM fans.
Technical data
Protective temperature limiter
Nominal voltage at 50Hz/60Hz 250 VAC
Nominal current (ohmic) cos
ϕ
=1.0 max. 2.5 A
Nominal current (inductive) cos
ϕ
=0.6 max. 1.6 A
Starting up, Function test
•
Before starting up:
– check that all screwed connections are tight.
– Check the air channel for dirt. If necessary,
clean the air channel.
– Check compliance with the Technical data.
•
After starting up, make sure the impeller is
running quietly and if necessary adjust accor-
dingly. It is also important to ensure that there is
a free flow of air.
Problems, Solutions
•
Main fuse: Always check whether the mains
fuse is switched on in the case of a fault.
•
The thermal overload protection has been
triggered, the fan switches off.
Leave the device switched off long enough for
the motor and temperature limiter to cool down.
Depending on the size and the temperatures
involved, the cool-down time could be up to 30 mi-
nutes. Only then should you switch it back on.
If the unit fails to restart or if it breaks down again,
remove the power and call on the services of a
trained electrician to identify and eliminate the
cause of the problem.
Maintenance
The device is maintenance-free.
Disposal
The fan contains some recyclable materials and
some substances that should not be disposed of
in the rubbish. After its lifetime has elapsed, dispose
of the device according to the valid regulations.
Technical Data
See the rating plate or the valid catalogue.
– Subject to change ! –
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