20138365
14
GB
Electrical data and operating times
3.7.27 Admissible lengths of the external
connections to the burner
Tab. F
3.8
Automatic deactivation of the pre-heating (only for suitable applications)
It is possible to disable the pre-heater function in automatic
mode by pressing the remote reset button.
Tab. G
When the pre-heating is disabled, the pre-heating remains off
until:
- a lockout occurs
- the main supply voltage is interrupted
- there is a stop due to intermittent operation.
The deactivation of the automatic pre-heating is not lost if the
switching off test is activated or if the heat request thermostat
opens.
Outlet cables of the burner
Identification
Maximum
length
permitted
(metres)
Mains electric power supply
L1 (L), N
20
Heat request thermostat
TL (T1,T2)
20
1st - 2nd stage adjustment
thermostat
TR
1
Hour counter
B4
3
External lockout indicator
S3
20
Remote reset
R (RS)
20
WARNING
In the event of burner applications with remote
control commands greater than those indicated in
Tab. F, insert the relay command devices
(230Vac) with contacts placed near or not more
than the maximum indicated lengths.
Sequence of pre-heating
deactivation
Colour of the LED
of the button
Allow the disabling of the pre-heating
only when there is no lockout or fault
-
Permit the disabling of the pre-heating
using the remote reset button.
-
Supply the burner and simultaneously
keep the reset button pressed for 3 sec-
onds.
RED
Release the remote reset button within
3 seconds.
OFF
The burner will start disabling the pre-
heating only if the remote reset button is
released within 3 seconds.
-
