Bathroom Switch; External Filter; Standby Switch - Zehnder Option Box Manuel De L'installateur

3 Bathroom switch

The device is equipped with an optional
time control to quickly decrease the
moisture in your bathroom. This is done
by setting the airfl ow temporarily to
PRESET 3 (BOOST mode) with a switch
in the bathroom.
Installation
Install a (bathroom) switch to connector 1 (see the wiring
diagram).
Commissioning
After installation, commission the switch in the
ventilation unit OPTION BOX SETTINGS menu. The
following menus must be set:
Menu item
DELAY-ON TIMER
(Not possible if a pulse-
switch is installed. Keep
this setting on "0 min."
when using a pulse-
switch.)
(Default = 0 min.)
OVER-RUN TIMER
(First set time and then
choose mode)
(Default = 30 min.
Default = FIXED)
Operation
See paragraph commissioning.
22 - EN
Function
The exact time before the ventilation
unit will start running at PRESET 3 after
turning on the bathroom switch.
If the bathroom switch is stopped within
the set time the ventilation unit will act
like the bathroom switch has never been
switched on.
■ FIXED: The exact time the ventilation
unit will stay running at PRESET 3
after turning off the bathroom switch.
(Use if a pulse-switch is installed)
■ MIRROR: The maximum time the
ventilation unit will stay running
at PRESET 3 after turning off the
bathroom switch.
The unit will stay at PRESET 3 for
the same duration as the time the
bathroom switch had been switched
on. If the bathroom switch has been
switched on longer than the set
MIRROR time, the air volume will
switch to the normal airfl ow when the
timer runs out.
4 External fi lter
The device is equipped with an optional
external fi lter error contact on which a fi lter
error switch can be connected to alert the
end user when the external fi lter must be
replaced.
Installation
Install the error switch of an external fi lter to connector
2 (see the wiring diagram). Read the manual of the
external fi lter for the rest of the installation procedure.
Commissioning
After installation there is no need to commission the
switch on the ventilation unit.
Operation
The ventilation unit will display an error when the switch
is closed.

5 Standby switch

The device is equipped with an optional
standby contact on which a standby
switch can be connected to remotely
activate the service mode on the
ventilation unit.
Installation
Install a standby switch to connector 3 (see the wiring
diagram).
Commissioning
After installation there is no need to commission the
switch on the ventilation unit.
Operation
The ventilation unit will go into service mode when the
switch is closed.
The ventilation is turned off during
service mode.
Do not forget to turn the switch off
again to restart ventilation.
2
2
Not allowed in Belgium