Frymaster FilterQuick Series, Technical Reference Manual

Page: 18 / 170

High-Ef
fi
ciency Gas
2-13
Ignition Module Timelines
Ignition Module Functions:
1. Produces high voltage for spark.
2. Senses the
fl
ame.
3. Provides 24V to gas valve.
4. Provides the Alarm Circuit (24V) to the
controller.
5. Fenwal modules are used in 30lb fryer pots:
LOV, OCF, FilterQuick
2000 —2014 — Current
Use Domestic
Spark Outputs Single/Dual
Fused No
Lockout 0.6
Optimal UA output
2.5-3.5
2014 — 2015
Use All
Spark Outputs Single
Fused No
Lockout 0.5
Optimal UA output 1.7-3.0
LOV, FQ, OCF Only
June 17 — Current
Use
All
Spark Outputs
Single
Fused No
Lockout 0.15
Optimal UA output 0.4- 0.8
TD = Time Delay Relay (4 Seconds)
HV = High Voltage
Power Flow Through Ignition Module
The heat relay provides power to ignition module.
Power
fl
ows to the contacts of the internal relay. If
the module does not energize, the alarm circuit is
energized.
Power
fl
ows through the coil of the internal relay
to ground for at least the period of the time delay (4
seconds).
The relay stays closed, if all components are
operating, and allows 24 VAC to
fl
ow through the
system, and to the gas valve.
The blower is now running, the module is sparking,
the gas valve is open and a
fl
ame is in the burner.
Once a
fl
ame is in the burner, the
fl
ame sensor
current has to be above the lockout minimum for the
module. This provides the hold for the relay coil.
Should the
fl
ame sensor lose
fl
ame current, the
module will try to relight the burner for the period of
the time delay. If
fl
ame sensing is not re-established,
the module will lockout.
Inside the Ignition Module
TD
Out to
Gas Valve
To Alarm
25 V +
GND
HV
Ignition Wire Flame Sensor
Coil