23
EXPERT WW rev.12
EXPERT WW
2. If the tunnel door was used in natural
vent.:
a) If the tunnel door operates according to the
room temperature, the door fully opens at the
start-up of tunnel ventilation and then goes the
position associated with the 1
st
tunnel stage; this
allows resetting the position of the actuator before
entering in tunnel ventilation.
b) If the tunnel door operates according to the
static pressure, the tunnel door opens during
the
“Pre-Opening Time”
and then starts to be
controlled as a function of static pressure.
2. From Tunnel to Natural Vent.
1. If the tunnel door was not used in natural
vent. :
When the controller re-enters in natural ventila-
tion [A], the natural ventilation curtain opens dur-
ing the
“Continuous Open Delay”
and the tunnel
door fully closes. When this delay has elapsed, the
natural curtain operates according to the natural
ventilation timer [B].
2. If the tunnel door was used in natural vent. :
When the room temperature falls below the
natural ventilation’s
“Start Close at”
tempera-
ture [A], the tunnel door and natural ventila-
tion curtain open during the
“Continuous Open
Delay”.
When this delay has elapsed, both
outputs operate according to the natural
ventilation timer [B].
GRAPH 2
From tunnel to natural ventilation
Temperature falls
Natural ventilation
Tunnel ventilation
Natural Start
Close at
6.3.2. Transition Between Natural
& Tunnel Vent.
1. From Natural to Tunnel Vent.
When the room temperature reaches the natural
ventilation’s start temperature, the natural cur-
tain starts opening in timer mode [A] – if tunnel
doors are used in natural ventilation, they open
according to the same timer. When the room
temperature reaches the start temperature of
the first tunnel stage [C], the natural curtain
stays still during the
“Tunnel Close”
delay and
then fully closes. Here’s how a tunnel door
opens at the startup of tunnel ventilation:
1. If the tunnel door was not used in natural
vent.:
a) If the tunnel door operates according to the
room temperature, the door reaches the posi-
tion associated with the 1
st
tunnel stage when
the controller enters in tunnel ventilation. The
controller then starts the fans when the tunnel
door reaches half the opening of that stage.
b) If the tunnel door operates according to the
static pressure, the tunnel door opens during
the
“Pre-Opening Time”
and then starts to be
controlled as a function of static pressure. The
controller starts the fans when half of the
“Pre-Opening Time”
has elapsed.
GRAPH 1
From natural to tunnel ventilation
Temperature rises
Natural ventilation
Tunnel ventilation
1st tunnel
stage
(Open at)
(Close at)
6.3.3. Natural Ventilation Settings
1. Select:
Main menu
Start/Stop*
Natural**
Curtain #X
* A password may be required to access this menu.
** This menu is accessible if at least 1 natural ven-
tilation curtain is enabled in the Installation Setup
(section 4.5).
Natural Curtain 1 Settings
Use to navigate
Initial Open at
80.0 °F
Start Close at
78.0 °F
Start Open at
82.0 °F
Initial Time
20 sec
Open Time
15 sec
Close Time
15 sec
Off Time
15 sec
Wind Delay
10 sec
Tun.Close Dly
300 sec
Continuous Open
300 sec
Purge Move Time
30 sec
2. Set the following parameters:
(Refer to previous sections to get further information
on these parameters)
Initial Open at —
Set the temperature at
which the curtain opens for the first time. The
curtain opens during its initial moving time at
that moment.
Start Close at —
Set the temperature below
which the curtain starts closing in timer mode
when the controller is in natural ventilation.
Start Open at —
Set the temperature above
which the curtain opens according to a timer
when the controller is in natural ventilation.
Initial Time —
The curtain opens during
its initial opening time when the controller
enters in natural ventilation. This opening
time can be adjusted from 1 to 900 seconds
(15 minutes).
Open / Close / Off Time —
Set the opening
and closing timers of the curtain (the
“Off
Time”
is common to both cycles). The open
and close times range from 1 to 900 seconds
(15 minutes); the
“Off Time”
ranges from 0 to
900 seconds (15 minutes).
