8. Installation
‒
Electrical connection
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en
8
8. Mounting
8.1 Installing fan
CAUTION
Danger from incorrect
installation location or incorrect
attachment.
1. Only fit in places with sufficient
load-bearing capacity.
2. If necessary, the customer
should provide fastening
material suitable for the
installation location.
1. Remove pre-installed mounting foot [5] by
opening both clamps and taking out fan
housing [1] and connection sockets [2].
2. Fit mounting foot [5] at installation location
using appropriate fastening material.
Make sure that there is free access
to terminal box [3].
3. Slide folded spiral-seam ducts suitable for
the diameter of the connection sockets
onto the two connection sockets on the
inlet and outlet sides. If necessary, first
attach flexible fixing cuffs onto connection
sockets.
4. Insert fan housing and two connection
sockets in grooves of the two clamps.
Close the clamps and screw down.
Ensure that the components do not
twist and are inserted correctly in the
clamp grooves in order to prevent
leakages.
5. Fit suitable insulation, sound-deadening
and installation material.
8.2 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.
Information
ERK fans are not approved for
●
operation with frequency converters.
Speed can be controlled using a speed
●
controller (phase angle) or step
transformer. For speed controller
accessories online or valid Maico
catalogue.
Units with ERK 100 T, ERK 100 ST and
●
ERK 125 T timers have an extra PCB with
potentiometer in the terminal box. This can
be used to set the follow-up relay (timer)
from 3 to 15 minutes.
The speed of timer units cannot be
controlled.
The high performance level should be
●
connected when using speed
controllers/transformers.
1. Switch off mains fuse and prevent from
being started up again. Attach warning
sign.
2. Remove terminal box cover [4] and
accessories bag.
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