Filter
Top Products
OPERATING SEQUENCE - HEATING
QUICK CHECKS:
Potentiometer - Range 0 - 50K, Safety Thermostat - Normally Closed,
Thermistor - Range 0 - 100K, Water Level Probe - Must be submerged in water for burners to work
RESULT 2
Amber LED is illuminated.
(Used prior to July 2004)
a/ Green LED illuminates.
b/ 12 VDC relay contacts close.
a/ Air switch contacts close.
a/
25 volts supplied to ignition module.
Within 20 seconds ignitor glows red.
a/ Burner ignites.
a/ If temperature drops in
chamber gas valve is de-
energized within five seconds.
b/ Ignitor will try twice more to
light before locking out.
a/ Green LED turns off.
b/ 12 VDC relay contacts open.
c/ Blower turns off.
d/
25 volt transformer de-energizes.
ACTION
Close main circuit breaker.
On/Off switch on kettle
switched to ON.
Control box.
12 VDC relay contacts
close.
Ignition module.
120 volts turned off to ignitor.
Temperature reached.
STEP
1.
2.
3.
4.
5.
6.
7.
RESULT 1
120 volts is supplied by primary contactor
to kettle On/Off switch and tilt relay
contacts. Power supplied to tilt assembly.
120/16 volt transformer supplies
power to control boxes.
A/ Requires grounded probe to
function (pin #5).
B/
More that 6 volts at pin #2. Control box
energizes 12 volt DC relay (pin #6).
A/ Blower energizes.
B/ 120/25 volt transformer energizes.
C/
120 volt supplied to ignition module.
Supplies 120 volts to ignition.
A/ Gas valve is energized.
B/ Ignitor becomes sensor.
A/ Less than 6 volts at pin #2.
Control box de-energizes 12 volt
DC relay (pin #6)
OPERATING SEQUENCE - AGITATOR
A/
Three phase contactor closes to
supply power to variable speed drive.
A/ Power to agitator motor.
A/ Motor speed increases.
a/ Indicator light is energized.
a/ Motor comes up to speed.
On/Off switch closed.
Start button momentarily depressed.
Speed control turned up.
1.
2.
3.
OPERATING SEQUENCE - POWER TILT
A/ Relay 2 is energized.
A/ Power interrupted to down side
of tilt switch.
A/ Relay 1 is energized.
A/ Power interrupted to up side of
tilt switch.
a/ Tilt motor is energized.
a/ Relay de-energized.
b/ Motor stops.
a/ Tilt motor is energized.
a/ Relay de-energized.
b/ Motor stops.
Turn and hold tilt switch in
down position.
Kettle tilts until limit switch is
depressed.
Turn and hold tilt switch in up
position.
Kettle tilts until limit switch is
depressed.
1.
2.
3.
4.