11
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.
As described above in Chapter 9 (Electrical connection), a rain sensor model
NRS1
can
be connected to the KATO ADV RADIO chain actuator with radio control.
The detector is capacitive sensor equipped with a heater in order to render the
detection area insensitive to the formation of dew, humidity and ice and allow it to dry
quickly after rainfall.
NRS1
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.
If necessary, the heater can be excluded by a dip-switch. The 5-conductor cable
provided is 5 m long, with a highly weather-resistant PVC sheath which is also non fire-
propagating and resistant to UV radiation.
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.
13. PROGRAMMING ACTUATOR
13.1. Limit switches at opening
Four (4) positions can be selected for the limit switch of the outgoing chain.
To program, adjust the two dip-switches near left terminal board, as indicated in the
following table.
1
2
110
OFF
OFF
200
ON
OFF
300
OFF
ON
400
ON
ON
Limit switch at:
(mm)
Dip-switch n°
After the limit switches have been programmed, run a few check manoeuvres. In the
event of error, programming can be repeated to give the desired track run.
The actuator comes from production set on longer stroke (400 mm), dip-switch 1 in ON;
dip-switch 2 in ON
.
13.2. Limit switches at closure
The limit switch at closure is automatic, electronically operated and cannot be
programmed. The actuator stops when the charge is absorbed when the window is
completely closed and the weather stripping is completely depressed.
12
Attention
. The actuator at maximum charge, exercises a force enough to
crush fingers in the event of distraction.
After each closure or intervention of the electrical protection mechanism, the chain
moves in the opposite direction for around 1,0/1,5 mm. This is to loosen the tension of
the mechanical parts and gives correct pressure to the weather stripping.
14. ASSEMBLY
These indications are intended for the attention of technicians and specialized
personnel. Basic job and safety techniques are therefore not included.
All preparatory operations, assembly and electrical connections must be carried out by
technical and specialized personnel to guarantee best performances and good function
of the KATO ADV RADIO chain operated actuator.
First of all, please check that the following fundamental points have been satisfied:
Before installing the actuator, check that the moving parts of the window on which it
is to be installed are in perfect working condition and that they open and close
properly and are well balanced (where applicable).
Check that the electrical supply used corresponds to the indications on the
“TECHNICAL DATA” label attached to the machine and that the given temperature
range is compatible with the place of installation.
Actuator specifications must be sufficient for movement of the window without
encountering any obstacle. The limits indicated in the technical data table must not
be superseded
(page 7)
and the most appropriate stroke should be selected.
Calculations should be checked using the formula indicated on
page 5.
Ensure that the actuator has not been damaged during transport, first visually and
then by powering in both directions.
Check that the width of the inside of the window (where the actuator is to be
assembled) is over 405 mm, otherwise the actuator should not be installed.
Check that once the actuator has been installed the distance between the fixed
part of the window frame (where the actuator is to be assembled) and the mobile
part of the window frame (where the bracket is to be fixed) is greater than or
equal to 0 mm. If this is not the case the actuator will not function correctly as the
window will not close correctly. If required, add additional thickness below the
support brackets to reset the quota.
14.1. Preparation of actuator for assembly
Before starting assembly of the actuator, prepare the following material for completion,
equipment and tools.
For fixing onto metal window frames: M5 threaded inserts
(6 pieces)
, M5x12 flat
headed metric screws
(6 pieces)
.
For fixing onto wooden window frames: self-threading screws for wood Ø4.5
(6
pieces)
.
For fixing onto PVC window frames: self-threading screws for metal Ø4.8
(6 pieces)
.
Equipment and tools: measuring tape, pencil, drill/screwdriver, set of drill heads for
metal, insert for screwing in, electricians pliers, screwdrivers.
