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MODEL C24EA - CONTROL BOARD
F35453 (July 2008) Page 40 of 68
Steam Generator at Operating Pressure
• All contactors de-energized (heating stops).
LED
STATUS
COMPONENT DESCRIPTION
ON OFF
1 X Same as Starting Conditions
2X
Same as Water Level at LLCO Probe Limiting contactor (1CON) remains energized
with the water level satisfied (LLCO probe).
3X
Regulating contactor 1 (2CON) de-
energized.
Power removed from heating elements.
Contactor will cycle on/off as necessary to
maintain pressure in steam generator with
call for heat from pressure switch (1PAS).
4X
Regulating contactor 2 (3CON) de-
energized.
Power removed from heating elements.
Contactor will remain off for the rest of
delime cycle.
5X
Relay (K1) energized. Pressure switch opens (1PAS). With Delime
Relay (K2) energized (LED 15 on), K2-5/1
contacts are open to lock out power to the
cooking compartment controls.
13 X Same as Delime Switch On
14 X Same as Delime Switch On
15 X Same as Delime Switch On
17 X Same as Delime Switch On
All other LED's are off.
Steam Generator Maintains Operating Pressure
• Heat cycles as necessary to maintain steam generator pressure during the delime cycle.
• LED 3 will cycle on/off with Regulating Contactor 1 (2CON).
• LED's 1, 2, 5, 13, 14, 15 & 17 remain on.
• Water level maintained by water level control circuit. HL LED (water level control) will cycle on/off.
Delime Time Reaches Zero
• Delime light (4LT) (red) on until time expires on Delime 2 (TDR).
• Delime cycle heating ends. Limiting contactor (1CON) and regulating contactor 1 (2CON) de-energized.
• Drain cycle starts (drain TDR energized). Drain valve energized to allow steam generator to drain. Delime valve
energized to allow heat exchanger to drain.
• Condensate thermostat closes (1TAS) and drain cooling solenoid energized (1SOL).
• HL LED off until water drops below L (low level) probe then turns on (water level control).
• LLCO led on until water level drops below LLCO probe (water level control). Fast fill/flush solenoid energized.
• LED 2 remains lit until water level drops below LLCO probe then turns off. Limiting contactor (1CON) de-
energized.
• LED 10 remains lit during 3 minute drain cycle then turns off.