Duke FBB-EO-208 - Operational Sequence and Troubleshooting; Sequence of Operation

Service Manual for Flexible Batch Broiler Units
26
SEQUENCE OF OPERATION
NO
TURN ON
Read†Temperature
Bottom & Top
Elements ON
continuously
Turn O “DO NOT
LOAD” LED
Output & enable
Product Key
buttons
Turn LEDs for
Product Keys
with Non-Zero
Cook Time
GREEN
Turn LEDs for Product
Keys with Non-Zero
Cook Time RED
Idle Cycle: Top Elements
cycle by “iPL” = 6
ON: 6 sec, OFF: 4 sec
Idle Cycle: Top Elements
cycle by “iPL” = 6
ON: 6 sec, OFF: 4 sec
NOTE: Diagnostics – See TROUBLESHOOTING for
possible Display results.
Bottom Elements cycle
to maintain within 10F
(6C) of iSEt
Bottom Elements cycle
to maintain within 10F
(6C) of iSEt
Bottom Elements cycle
based on “SEt1-6”
(Setpoint Temperature)
and “bh1-6”
(Booster Heater, ON/OFF)
Top Elements cycle
based on “ti1-6”
(Time Segment) &
“PL1-6” (Power Level)
Cook Cycle:
Product Key
depressed
Turn†On “DO NOT
LOAD” LED Output &
disable Product Key
buttoms
Discharge: run
Cook chain for
“Cdti” time
(6-8 sec)
Read†Temperature
Display†“Lo”
Display†“PrE”
Display†“Hi”
Display†“rdy”
Loop†Until†Temperature
†“iSEt”†(740F†[393C])
Read†Temperature
Diagnostics
Diagnostics
Loop†Until†Temperature
†“iSEt”†(740F†[393C])
Loop for
10 minutes
Loop until a
Product Key is
pressed
Diagnostics
Diagnostics
Diagnostics
Temperature
†740F†(393C)?
Cook time
expired?
Temperature
<†300F†(149C)?
Temperature
<†iSEt - “Lo t”
640F†(337C)?
Temperature
>†iSEt - “Hi t”
940F†(504C)?
NO
NO
NO
NO
YES
YES
YES
YES
YES