Choosing The Type Of Automation; General Characteristics; Preliminary Checks - Aprimatic ZT42 Mode D'emploi

R
1.2

CHOOSING THE TYPE OF AUTOMATION

Before mounting, the type of automation must be decided on, on the basis of the characteristics and dimensions of the element to be operated.
The ZT 44 hydraulic operator, with its range of different versions, is compatible with the elements listed below.
Caution
• The right choice of the type of automation assures an effi cient operation of the unit and minimises the possibility of failures.
• The ZT 44 operator, if installed correctly, conforms to all the safety standards listed in the UNI 8612 publication.
List of versions:
A: Hydraulic lock for opening only
B: Double hydraulic lock for opening and closing
C: Hydraulic lock for closing only (with lock inaccessible when the gate is open)
SF: No hydraulic lock -braking action (the gate leaf can be moved by hand with a minimum of resistance, if moved slowly; there is also a
release device to facilitate opening -needs an electric lock -for use in windy zones)
SR: No hydraulic lock -braking action (the gate leaf can be moved by hand with a minimum of resistance, if moved slowly; there is also a
release device to facilitate opening -needs an electric lock -for use in windy zones)
!
Warning
• The versions listed above are recommended for use with solid gate leaves (with the operator inaccessible when the
gate is open).
• The C version model must not be fi tted on gate leaves of length exceeding 1.8 m
!
Warning
The peripheral speed of the gate leaf must always be less than 12 m/min. in order to conform to the UNI 8612 regulations.
Also, it is important to avoid the use of high-speed operators on wide gate-leaves as this could cause the gate leaves to bang
violently against the gate stop (see table below).
1.3

GENERAL CHARACTERISTICS

• Specially designed for residential use, the ZT 44 is a hydraulic operator for swing gates. It is produced in two different pump fl ow-rate
versions for use with small or large size gate leaves.
• The version with the hydraulic closing lock avoids the use of electrical locking, and guarantees the closing position for gate leaves
of length less than 1.8 meters.
• Emergency release: allows the manual control of the gate (for use in the absence of electricity supply) with a personalized key, easily
accessible via an opening compartment on the upper cover of the operator, safe to use and easily maneuverable.
• "Non-crush" safety feature with sensitive valves, settable during installation.
B
2.1

PRELIMINARY CHECKS

Before choosing the fi nal position of the mountings, it is necessary to:
• Choose the most suitable height on the gate leaf for the operator front mounting. If possible, it should be positioned halfway up the gate
leaf. As a rule, the ideal point is always in the strongest area, where the fl exing of the gate leaf has the least effect. If there is not a
broad strip of steel in the gate framework, then a suitable support needs to be welded on in the area where the front mounting is to be
positioned, in order to spread the load over a wide zone (B1A).
• Check whether the chosen area needs reinforcing or strengthening in any way. Make the same check on the gate leaf support posts.
• Before proceeding with the actual mounting, make a complete check on the gate leaves, making sure that they are in good condition,
and not broken or damaged in any way.
• Check that the movement of the gate leaves is uniform, and that the hinges have no play and do not rub.
• Check that the gate leaves are plumb (when perfectly still at any point in the swing) (B1B); when the gates are completely closed, check
that the closure is even throughout the whole height of the gate leaves.
• Using a dynamometer to measure from the end of the gate leaf, check that the opening and closing effort of the gate leaves does
not exceed 15 kg (147 N).
If the effort is excessive, then the hinges must be repaired so that the gate leaves can be moved easily by hand or, if repairs are
impossible, the hinges must be replaced.
B1A
Characteristics / Preliminary operations
A
C
B1B
- 15 -
MOD. ZT 44
90
A (mm)
1052
B (mm)
732
C (mm)
270
FIL À PLOMB
ZT 42
900
643
194