Zehnder Option Box V2 Manuel De L'installateur page 24

3 Bathroom switch
Installation
Connect 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 in chapter 3.
3 Not allowed in Belgium
24 - EN
The device is equipped with an
optional time control to quickly
decrease the moisture in your
bathroom. This is done by setting
the airflow temporarily to PRESET
3 (BOOST mode) with a switch in
the bathroom.
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 for longer
than the set MIRROR time,
the air volume will switch
to the normal airflow when
the timer runs out.
4 External filter
The device is equipped with an
optional external filter error contact
on which a filter error switch can be
connected to alert the end user
when the external filter must be
replaced.
Installation
Install the error switch of an external filter to
connector 2 (see the wiring diagram). Read the
manual of the external filter 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.
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