Product Description; Preliminary Checks - Nice TT2L Instructions Et Recommandations Pour L'installateur

Warnings
• For personal safety it is important to observe all instruc-
tions herein and conserve this document for future consul-
tation.
• This manual contains important safety instructions for
installation. Incorrect installation procedures may lead to
seriously hazardous conditions.
• Partial reading of these instructions will not ensure that the
user exploits the characteristics of this product to the full.

1) Product description

The TT2L and TT2D control units make it possible to switch on/off
mains-powered electric devices; basically, their distinguishing char-
acteristic consists in the different configuration of the output. The
TT2L control unit (figure 3a) is suitable for direct control of the device,
whereas the TT2D control unit (figure 3b) has a potential-free
changeover switch on the output side, and is more suited to control
devices that already have other control circuits.
The control units incorporate a radio receiver which works at a fre-
quency of 433.92 MHz using rolling code technology in order to
ensure high security levels.
Each control unit can memorize up to 30 transmitters in the series
FLO2R, VERY VR and NICEWAY (figure 1). Two keys are used on
each transmitter: one for the ON command and the other for the
OFF command. The control unit memorizes the ON-OFF status of
the connected device, so in the event of a power failure, when the
power supply is restored the output returns to the previous status.
The TT2L and TT2D control units are equipped with an input "P/B"
for control of the units also by means of and external contact.
1
FLO2R
2) Installation
• The product is subject to hazardous electric voltages.
• The installation of the TT2L, TT2D and electrical devices
must be performed exclusively by technically qualified
personnel, in observance of current legislation and stan-
dards, and according to these instructions. All connec-
tions must be made with the system disconnected from
the power supply.
• The TT2L and TT2D control units have been especially
designed for insertion in a junction box or wall box; their
housing does not feature any protection against water

2.1) Preliminary checks

• The power supply line must be protected by suitable magneto-
thermal and differential switches.
• A disconnection device must be inserted in the power supply line
from the electrical mains (the distance between the contacts must
be at least 3.5 mm with an overvoltage category of III) or equiva-
lent system, for example an outlet and relative plug. If the discon-
nection device for the power supply is not mounted near the
2
VERY NICEWAY
The TT2L and TT2D have been designed for control of a single phase
electric device, mains powered, e.g.: lamps, "on-off" motors and such;
any other use is improper and prohibited. Installation must be carried out
by qualified technical personnel in full compliance with current legislation
and electrical and safety standards.
Memorization and programming are possible via the transmitters or
direct via the programming pushbutton (figure 2) on the TT2L and
TT2D. The user is guided through the various phases by means of
led signals.
Note. The TT2L and TT2D control units can also manage other
types of transmitter and other operating modes; refer to chapter 4
"Further Details".
2
and only basic protection against contact with solid
parts. Never place the TT2L and TT2D in inadequately
protected environments.
• Never open or perforate the TT2L and TT2D housing; do
not cut the aerial cable under any circumstances: this is
subject to hazardous electric voltages.
automation, it must have a locking system to prevent unintention-
al, unauthorised connection.