3
25
Service
Manual
Gas heating
04102011/GB
50.2011
Operation_Standard machine
Controlled by the ELECTROLUX ITS, the A9 igniter controls the ignition of the gas pipe burner
when the machine is switched on.
The ELECTROLUX ITS checks the operation of the A9 igniter using the KA90 relay.
The ignition of the gas pipe burner is carry out by the Y1/Y2 electrovalves and the E1, E2 and
E3 electrodes, once the fault gas (KA90) is validated by the ELECTROLUX ITS.
The B5 pressostat check the pressure of the gas in order to protect the heating system.
The B126, B127 and B128 temperature sensor (PT100) contribute to the regulation of the
temperature and the overheating detection of ironing cylinder according to the following
condition:
Overheating condition:
Overheating on side
= 1
when B126 >230°C or B128 > 230°C
= 0
when B126 & B128 < 200°C
Overheating on center
= 1
when B127 > 240°C
=
0
when
B127
<
240°C
The F2 thermal fuse (T°C > 240°C) and the B3 safety thermostat (T°C > 210°C) are used like
thermal breaker to protect the machine against overheating > 210°C.
* ARU = Security chain, emergency push button
Power supply
3 phases
Q1
T1
A1_BASE
Q3
Q0
400
230
X117
230
T2
X118
X129
230
24
400
B126
X126
B127
X127
24
ARU
B128
X128
F2
X108
24
B3
X109
24
B5
X110
24
B2
X111
24
A9
X116
230
Y1 - Y2
E1 - E2
KA90
Summary of Contents for IC4 4819 FFS
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