Filter
Top Products
MODEL C24EA - ELECTRICAL OPERATION
F35453 (July 2008) Page 46 of 68
ELECTRICAL OPERATION
COMPONENT FUNCTION
STEAM GENERATOR CONTROLS
Water Level Control (WLC) ............... Controls water level by monitoring conditions of the three water
level probes H, L and LLCO.
Probe (H) ............................. High water level probe connected to internal latch relay circuit
on WLC. Water must reach this level before internal latch relay
is energized.
Probe (L) .............................. Low water level probe connected to internal latch relay circuit on
WLC.
Probe (LLCO) .......................... Low Level Cut-Off (LLCO) probe connected to WLC. Controls
power to heating and fast fill/flush solenoid.
Contactor, (1CON) Limiting .............. Connects one side of heating elements to power. Energized
whenever WLC (LLCO) coil is energized.
Contactor 1, (2CON) Regulating ........... Connects heating elements to power. On constantly when one
or both cooking compartment timers are set.
Contactor 2, (3CON) Regulating ........... Connects heating elements to power. On constantly when both
cooking compartment timers are set.
Elements, Heating ...................... Located in steam generator. Heats water to produce steam.
Elements, Heat Exchanger ............... Two cartridge type heating elements located in the heat
exchanger. Provides additional energy to raise the steam
temperature delivered to the cooking compartments.
Fuse, (1FU & 2FU)....................... Slow blow 3A fuse. Located on primary side of main transformer
(1T). Protects control circuitry from over-currents.
Relay, Time Delay ...................... Controlled by delime switch for delime cycle only. Power switch
must be off and delime switch pressed and held for more than 2
seconds to activate time delay relay output and start delime
cycle. Time delay prevents the delime cycle from immediately
starting, if the delime switch is accidentally pressed.
Solenoid (1SOL), Drain Cooling ........... Controlled by the condensate thermostat. Mixes cold water with
hot drain water from steam generator to reduce water
temperature at the drain.
Solenoid, (2SOL) Cavity Condensate ...... Controlled by cavity relay K8 on control board. Solenoid is
energized when timer is on. Mixes cold water with hot
condensate water from cooking compartment to reduce water
temperature at drain.
Solenoid (3SOL), Fast Fill/Flush .......... Initial steam generator fill. Used during last stage of drain cycle
to flush drain opening free of debris.
Solenoid (4SOL), Slow Fill ............... Secondary steam generator fill. Energized as necessary to
replenish water in steam generator.
Solenoid (5SOL), Vacuum Relief........... Provides open air line to steam generator during filling and
draining. When generator is draining, keeps a vacuum from
developing to prevent cooking compartment flex; and allows
faster draining. When generator is filling, keeps pressure from
building up to allow the generator to completely fill.
Solenoid, Drain Valve (N.C.) .............. Controlled by delime relay K7 and delime circuit operation.
When energized by 24VAC, valve opens to drain the steam
generator.