SHEVS Control Centre RWZ 1 b
7
3.5.4
Ventilation buttons with indication of position OPEN
A
●
The status light
A
(LT-*- A) lights up when a travel command is executed toward OPEN.
The status light goes out after the closing time for a travel command toward CLOSED (up to 4 minutes).
3.5.5
External Wind and Rain Control (WRC)
●
If the Wind and Rain Control responds, the actuators are automatically closed. The ventilation functions are
disabled. The indicator
w
on the main board lights up, until the WRC releases the ventilation functions once
again. An alarm has priority.
3.5.6
Internal Wind and Rain Control (option WRM)
●
If the internal Wind and Rain Control responds, the actuators are automatically closed. The ventilation func-
tions are disabled. The indicators
W
and / or
R
on the module and the indicator
w
on the main board light
up, until the internal WRC releases the ventilation functions once again. An alarm has priority.
●
The response thresholds of the sensors can be adjusted with a screwdriver at the potentiometers
W
and
R
on the module:
−
Rotating clockwise increases the sensitivity.
−
Rotating counterclockwise reduces the sensitivity.
Factory setting: highest sensitivity for both sensors.
!
Too low sensitivity setting can cause damage by wind and rain, for which we do not assume any liability.
●
The rain sensor is heated when it rains. This helps the sensor surface to dry faster after rain and to allow ven-
tilation again.
●
“Reduced sensitivity to wind”
DIP Switch
W:S1-1
:
In position ON, sensitivity to gusts of wind is reduced. This setting has no effect on sensitivity to constant
wind.
Factory setting: OFF (normal sensitivity).
!
Perform the setting only for correspondingly stable or insensitive designs!
●
“Continuous heating of rain sensor”
DIP switch
W:S1-2
:
In position ON, the rain sensor is heated continuously at reduced power. For example, this reduces morning
dew and incidental activation of the sensor. If the sensor is activated by rain, the heater operates at full power
once again up to drying.
Factory setting: OFF (heating is active only in rain).
3.6
Repetition of CLOSE cycle
●
If not all actuators are properly closed (e.g. actuator overload cutoff activated by a gust of wind), the repetition
of CLOSE cycle can be activated by briefly pressing the ventilation button
z
. The actuators are briefly opened
and following the closing command activated once again.
i
Observe setting of the function “Automatic OFF” see 3.2).
3.7
Mains failure
●
In case of mains failure, the accumulators cannot be charged, but provide the operating power for the stand-
by time. The alarm functions are not affected by the mains failure.
Actuators in ventilation position are closed and pressing the ventilation button
a
is ignored. The mains failure
must be corrected immediately to avoid deep-discharge disconnection, to recharge the accumulators and to
ensure the safe operation of the system.
i
Observe setting of the function “Automatic OFF” see 3.2).
●
Deep-discharge disconnection:
in case of critical condition of the accumulators, the entire Control Centre
including the indicators is
switched off
. However, a low quiescent current still flows (in addition to the natural
self-discharge). Therefore, there is the risk of permanent damage to the accumulators without recharging af-
ter a few days already.
