Vulcan C24EA6 Manuel d'utilisateur télécharger pdf (Page 46)

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.

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Vulcan C24EA6 Manuel d'utilisateur Page 46

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