Master 1120.8, Instruction Manual

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Page 11
Within 10 seconds, press any one of the up arrow ▲ ,
STOP
or down arrow ▼ buttons of
the (new) radio remote control that you want to program two times (once to activate the
display of the radio remote control and the second time to transmit the radio code).
10.2. Control with conventional button
If necessary, due to unavailability of the radio remote control or other reason, the controls
can be connected by cable.
The control must have a clean (voltage-fee) single-pole contact, normally open, or a
deadman's button, but not a stable switch. It should be connected to the left terminal block
in the actuator, as indicated in the previous “Electrical connection” chapter.
Warning. The IN1 and IN2 controls prevail over the radio commands.
The manual control prevails over radio remote control.
10.3. Ventilation function
The commands issued by the radio remote control can include a specific function called
“V
ENTILATION
”, which has the purpose of ventilating the room naturally for a specified time.
To activate this function, press the following buttons in sequence: F1, F2, up arrow ▲ .
The window opens and, if no other commands are given, closes again automatically after 5
minutes. In the case in which the rain sensor, a manual command or radio command
intervened, the ventilation function stops; to restore the function, the sequence of buttons
must be pressed again.
11. Rain detection sensor
The rain sensor should be installed outside on the window frame and fixed with a screw or
weather-resistant adhesive system. The device acts only on the commands of the chain
actuator.
Warning. The command coming from the rain sensor prevails over any other
command; if a stable switch is assembled with the manual control and forced
opening is instructed, after having reached the opening stroke-end the window
closes again, then it opens again, then closes again, etc.
In order to prevent this problem from arising, do not assemble a stable control
switch.
The Rain Sensor (Art. 1120.51) is a universal sensor with relay output and voltage-free
change-over contact (it can also be used by other systems), with a heater that operates
below +4 °C.
12. Predominance of the commands
The rain sensor intervenes when it rains regardless of the state of the commands, i.e., the
closing command due to rain, if activated, prevails over any manual command.