DE DIETRICH ELITEC DTG 130 Eco.Nox - Manual (Page 13)

13
01/02/11 - 300002915-001-E DTG 130 Eco.NOx
„ Operating cycle with the downdraught thermostat
cut off
In the event of smoke release by the anti-blowback device, the anti-
release safety device switches off the burner with the safety box on
standby for 15 minutes (this is indicated by an alarm indicator
flashing). The 15 minute timed period can only be interrupted by a
sector cut.
To restart the boiler:
Wait for around 5 minutes (thermostat cooling time) and press the
reset button on the safety control box. If interruptions of this kind
happen repeatedly, contact your fitter.
„ Legend
A Start of operation
A
1
Second ignition attempt
A
2
Third ignition attempt
B Formation of flame in ignition burner
C End of first ignition attempt
C
1
End of second ignition attempt
C
2
On safety through absence of flame signal
D Anti-blowback thermostat cut
E Resetting
F Restart of the boiler
SF Burner flame signal
TA Ignition transformer
TAF Anti-backflow thermostat
TCH Boiler thermostat
VA Safety lockout warning light
VBA Ignition burner valve
VBP Main burner valve
tn Downdraught thermostat cooling time: times vary
ts Safety time: 55 seconds
t
TAF
Waiting time: 15 minutes
Required input signals
Box output signals
Contact closed
8518N045
D F
TCH
VA
TA
SF
VBP
TAF
VBA
t
TAF
t
n