Riello G20D, Инструкции по установке, использованию и обслуживанию

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2903397
22
GB
Start-up, calibration and operation of the burner
8.8 Electronic start delaying device
This electronic start delaying device (Fig. 26) can be wired to a
2
nd
stage thermostat; in this case it performs two functions:
1 Delay of 5 - 6 seconds in the intervention of the 2
nd
stage
valve against 1
st
stage valve.
2 In relation of the position of the plug
A
(Fig. 26), it deter-
mines the type of required operation:
8.9 Burner start-up cycle
Fig. 25
II - I
II
I
II - I
II
I
II - I
II
I
A
Position I - II
Burner operation in 1
st
or 2
nd
stage on request of the 2
nd
stage
thermostat.
Position II
Burner operation only in 2
nd
stage - compulsorily.
Position I
Burner operation only in 1
st
stage - compulsorily.
S7355
Fig. 26
Thermostat
Motor
Ignition transformer
Valve
Flame
Lock-out lamp
~
12s
D5229
~
12s
~
5s
Lock-out due to failure to light Normal
Fig. 27