Nice ALTO Instructions And Warnings For Installation And Use page 42

mation, it must be connected permanently to the mains, using the specific
cable stated in Table 2. This cable must be used on the system.
3.3.5 - Installation site preparation work
Prepare the area for subsequent installation of the devices, completing all
preliminary work, such as:
- digging of raceways for protection ducting of electric cables (external
ducting may be used as an alternative);
- laying of ducting and fixture in raceways;
- routing of cables through ducting. Caution! - In this phase, do not
make any electrical connections.
- Etc.
Warning:
• The hoses and ducting serve to protect electrical cables and prevent
accidental damage in the event of impact.
• Position the ends of the ducting at the points envisaged for fixture of the
various components.
• When laying pipelines, take into account the risk of possible deposits of
water in the branch wells, where condensate may form in the pipelines
and the control unit with possible damage to the electronic circuits.
3.4 - VER IMPORTANT!
DETERMINING THE INSTALLATION PROCEDURE
TO FOLLOW (with standard arm or short arm)
IMPORTANT PREMISE – The gearmotor arm can be shortened
with respect to the standard length as supplied. A shorter length
may be required here there is a fixed obstacle ( all, post, etc.) is
located behind the post (where the gearmotor is to be installed),
preventing complete movement of the arm. Therefore, before
starting installation the following procedure should be performed
to then decide hether to use procedure 4.1 and 4.2 (the latter
requires shortening of the arm).
Warning – Incorrect installation may cause serious physical injury
to those working on or using the system.
• Before starting work, remove the
protective cover on top of the motor.
(figure on the right).
01. Assemble the components
making up the gearmotor arm.
a) - Refer to fig. 7, but without insert-
ing the stop benzing (fig. 8); this
will be inserted later. Caution!
- position the elbow fitting of the
arm so that is curved towards the
leaf of the gate (fig. 9) when the
gearmotor is installed.
02. Establishing the height from the ground of the gearmotor
when installed on the post.
a) - Place the gearmotor on the post and position it so that the bracket
(fixing the arm to the leaf) is located on the upper section of the
leaf, in a sturdy zone, for example the load-bearing frame (fig. 10). If
another similarly strong area of the leaf is selected to fix the bracket of
the arm, it is important to ensure that the distance from the ground of
the lower section of the gearmotor is at least 40 cm.
Warning – Never install the gearmotor upside down (see fig. 3).
b) - Keeping the gearmotor in this position, check that it is perfectly level,
and, using a pencil, trace a line on the post passing along the upper
edge of the bracket for fixing the gearmotor to the post. Then remove
the gearmotor.
03. Setting the required maximum leaf opening angle.
a) - Move the gate leaf to the required maximum opening position (with-
out exceeding 110°) and block with a stop on the ground, to secure it
provisionally in place. Caution! – To ensure correct system oper-
ation, mechanical stops must be mounted on the floor or
at the maximum leaf opening and closing points. These stops
are not supplied in the pack and are not part of the Nice Home prod-
uct range.
b) - Measure the leaf opening angle.
04. Calculate value "A" (fig. 11), i.e. the horizontal distance between
the leaf hinge pin and the point on the post where the vertical axis of
the gearmotor is to be positioned.
a) - On Graph 3 locate the line marked with the same maximum opening
angle as that measured.
b) - On the post, measure value B (fig. 11), i.e. the distance between the
fulcrum of leaf rotation (centre of the hinge pin) and the post surface
where the gearmotor is to be fixed.
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