TECSYSTEM T119 User Manual

9
T119
IMPORTANT WARNING
Before carrying out the isolation test of the electrical panel the control unit is installed on, disconnect it together
with the sensors from the power supply, to prevent it from being seriously damaged.
ALARM RELAY TEST
STEP
ACTION
EFFECT
1
push TEST three times in sequence
the T1,2,3,4 LEDs light up in
sequence
2
Within 5” push TEST without releasing it until the
LEDs light up all together
LEDs T1,2,3,4 flash all together
3
after 5” the FAN relay lights up, followed by the
ALL1 and ALL2 relays
FAN-ALL1-ALL2 LEDs and relays
are ON
4
END OF THE TEST CYCLE
all the red LEDs go OFF
DELAYED VENTILATION CYCLE (DELAY OFF)
STEP
ACTION
EFFECT
1
the FAN PTC sensor is ON
the FAN relay is ON and the red LED is lit
2
the temperature goes below the PTC
value
the FAN relay remains ON for the set time and
the red LED flashes
3
the temperature raises again above the
PTC set threshold
the LED is ON all the time
LED TEST
We suggest carrying out the control unit LED test regularly.
For this operation, press the TEST key briefly; all the LEDs light up for 2 seconds.
If one of the LEDs does not work, please return the control unit to TECSYSTEM for repair.
ALARM 1 RELAY OPERATION
The ALL1 (L1) relay operates normally when the unit is powered, therefore the N.O. contact is closed. In case of an alarm
on the ALL1 (L1) PTC or a fault in the control unit itself, the relay gets de-energised with consequent closing of the N.C.
contact.
The ALL1 (L1) relay also has the same function as the PTC sensor FAULT. If this relay is triggered when the PTC sensor
FAULT LED is FLASHING, it means that there is an error in the reading of a PTC sensor. It is possible to find it, thanks to
a second LED flashing which corresponds to the fault channel.
ALARM 2 RELAY OPERATION
The ALL2 (L2) relay is normally de-energized and energizes when there is an alarm on the L2 PTC.
FAN RELAY OPERATION (VENTILATION)
During programming, it is possible to set the cooling time or to exclude the FAN option. If the FAN is excluded, the relay
doesn’t energize and for this reason it is possible not to install the corresponding PTC.
If the FAN is set up, the relay activates when the relative PTC sends the first signal and the FAN LED is steady ON: the
relay is active for as long as the PTC senses the temperature is normal, the T119 unit keeps the relay ON for the time set
during programming and the FAN LED flashes.
When the time expires and if the temperature is still normal, the relay de-energizes and the LED switches OFF.

TECSYSTEM T119 Specifications

General

Brand	TECSYSTEM
Model	T119
Category	Control Unit
Language	English