9 Installation of fan insert and cover
29
DANGER Danger from electric shock/The
unit will be damaged if installed incorrectly
with too long a power cable.
If the cable feed is too long inside the housing,
the fan insert cannot be installed correctly. The
power cable may be damaged when inserting the
fan unit.
Area for mains connection labelled: Lay wires
according to the contour.
Note that the max-
imum spacing to the connection terminal box is
7 cm. Do not cut the power cable inside the hous-
ing too short.
NOTICE Risk of damage if ESD sensitive com-
ponents on the board are touched.
Avoid direct touching of the components or con-
tact surfaces.
NOTICE Damage to the unit if connected in-
correctly.
For example, if an electric load is connected to
terminal 4 or if connected to 2 phases.
Connect the unit according to the wiring dia-
grams:
additional consumers to terminal 4.
NOTICE Risk of damage to unit in the event of
short-circuits.
Cut off and insulate PE conductor and individual
cable cores that are not required!
Always note the relevant specifications for elec-
trical installations and when fitting equipment. In
Germany, observe DIN VDE 0100 and the corres-
ponding parts in particular. In rooms with baths or
shower units, for example, this would be Part 701.
1. Switch off mains fuse, secure and fit warning
sign.
2. Remove power cable’s sheathing and cut to
length as described.
3. Cut off and insulate PE conductor and indi-
vidual cable cores that are not required!
4. Make electrical connection according to wiring
diagram on terminal box:
.
8.1 Electrically connecting the unit
1. Switch off mains fuse, secure and fit warning
sign.
2. Remove plaster protective cover.
3. Cut off and insulate PE conductor and indi-
vidual cable cores that are not required!
4. Remove power cable surround and cut to
length according to these instructions.
5. Wire power cable to the terminal box accord-
ing to the wiring diagram.
6. Mark the fan type on the wiring diagram in the
flush-mounted housing. This prevents mis-
takes during final installation, for example, if
different fan inserts are fitted in the system.
7. Insert plaster protective cover.
We recommend keeping these installation
and operating instructions until final installa-
tion in the housing.
9 Installation of fan insert and
cover
9.1 Settings on electronic circuit
boards
• Electronic circuit boards of the ER variants
standard, D, VZ, VZ 15, G, GVZ and F have no
setting options.
• Electronic circuit boards of the ER variants I,
VZC, H, RC can be set as follows.
• Tolerance for time details max. + 20 %.
• Units with time delay switches (VZ, VZ 15,
GVZ, VZC, F, I, RC and H fans) have resist-
ance to interference in line with EN 55014-2
(depending on pulse type and energy compon-
ent 1000 to 4000 V). These values can be ex-
ceeded when operating with fluorescent tubes.
In this case, additional interference suppression
measures (L, C or RC modules, protection di-
odes, varistors) are required.
Setting
1. Place fan insert on front so that electronic cir-
cuit board (control) is freely accessible.
2. Set the desired values with the potentiometers
as described below.