
High-Ef
fi
ciency Gas
2-14
Voltage From Ignition Module
From Blue Module 60-80 VAC
From Red Module 190-210 VAC
Flame Recti
fi
cation
The spark module checks for the presence of
fl
ame in the burner by sending an AC signal
(graphic above) into the
fl
ame. It is recti
fi
ed there to DC and detected by the sensing rod on the
igniter assembly. With suf
fi
cient
fl
ame, a path to ground is created and the signal is provided to
prevent module lock out and keep the gas valve open. With insuf
fi
cient
fl
ame, the ground path
isn’t created and the module routes the 24 volts from the gas valve to the alarm circuit.
Frymaster’s
controllers use
a temperature
probe rather than
a thermostat.
The probe’s re-
sistance changes
as the tempera-
ture changes.
The controls
recognize the re-
sistance change
and react.
What Causes Problems
If the probe’s resistance reading falls between 1000-1950 —
well outside acceptable operating temperatures or the wires
are shorted — the controller displays a error message:
CM3.5:
Prob
M2000
Probe Failure
FQ3000:
Temp Probe Failure
Touchscreen:
Probe Error
(See Chart: 6-8, 6-9)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
The pin counting starts at the ridge (shown
in red) on the 15-pin probe plug (above) and
at the top right on the 20-pin SMT plug.
Probes
Pin 8
Pin 2
H55 temp probe
Содержание FilterQuick Series
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Страница 11: ...High Efficiency Gas 2 6 OCF Blower Gas Valve Spark Module Igniter Gas Valve...
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