Whirlpool FGS335E N, Service Manual

Page: 81 / 112

Page 4-5
4-5
Cooking Products Service Manual
Original July, 1996
4321891
© 1996 Whirlpool Corporation
TOP BURNER IGNITOR SYSTEM
Description
The maintop burner ignitor system consists of
the following components:
Ignitor Module
(4) Burner Ignitors
IGNITOR
MODULE
1
2
4
3
N
L
INPUTS
OUTPUTS
1 3
2 4
50pF
HV
PROBE
SCOPE
MEASURE ONE OUTPUT
INDEPENDENTLY WITH
REMAINING THREE
TIED TOGETHER TO
SCOPE COMMON
IGNITOR MODULE #: -1 THRU -4 -5 THRU -7
INPUT VOLTAGE 92 - 132 190 - 253 VAC
INPUT CURRENT: 10 mA 5mA MAX.
INPUT FREQUENCY: 50-60 50 - 60 HERTZ (Hz)
S
P
A
R
K
R
A
T
E
@ 102 VAC 1.0 MIN.
SPARKS
PER
SECOND
@ 120 VAC 2 - 4
@132 VAC 3-6
@ 203 VAC 1.2 MIN.
@ 230 VAC 2 - 4
@ 253 VAC 3 - 6
OUTPUT ENERGY: SEE MODEL CHART MIN.
OUTPUT VOLTAGE: SEE MODEL CHART MIN.
OUTPUT PULSE WIDTH: 90 µ SECONDS INTO 50 pF MIN.
MODEL #
INPUT
VOLTAGE
END TAB
1 END ONLY
ENERGY
OUTPUT
PER
BURNER
MINIMUM
OUTPUT
VOLTAGE
Y-64450-1 120 VAC SNAP-IN 6.5 mJ 16 kV
Y-64450-2 120 VAC
SCREW
MOUNT
6.5 mJ 16 kV
Y-64450-3 120 VAC SNAP-IN 12 mJ 19 kV
Y-64450-4 120 VAC
SCREW
MOUNT
12 mJ 19 kV
Y-64450-5 120 VAC SNAP-IN
Y-64450-6 230 VAC
SCREW
MOUNT
Y-64450-7 230 VAC
(4) Spark Ignitor Switches
0˚ REF.
OFF
ON
140˚
100˚
SWITCH PART # = Y-68014-3
PRINT COLOR = GREEN
RATING = 10A @ 120 VAC
ACTUATOR ROTATION = CCW
0˚ REF.
OFF
OFF
ON
55˚
90˚
240˚
SWITCH PART # = Y-68014-1
PRINT COLOR = BLACK
RATING = 10A @ 120 VAC
ACTUATOR ROTATION = CCW
The ignitor module provides high voltage
pulses for the top burner igniters only.
CAU-
TION: Do not attempt to measure the high
voltage output of the module.
When a burner knob is turned to the LITE
position, the ignitor switch on the valve stem
closes, and provides power to the module.
Internally, power is applied to a rectifier charg-
ing circuit, that pulses a step-up transformer
two or three times-per-second. The secondary
of the transformer has two windings, one for
each pair of maintop burner igniters. With two
outputs, one set of igniters can spark without
the other set sparking. There are no adjust-
ments for the ignitor module.