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ELECTRICAL OPERATION

COMPONENT FUNCTION

Water Level Control
(WLC LLCO) . . . . . . . . . .

Low water level control. Monitors condition of the WLC LLCO water level probe. Protects
kettle from a low water condition in the reservoir jacket and removes power from heating
circuit when kettle is tilted.

Probe, Water Level
(LLCO) . . . . . . . . . . . . . . . .

Low Level Cut-Off (LLCO) probe connected to WLC (LLCO). Controls power to heating
circuit.

Contactor (1CON)
Limiting . . . . . . . . . . . . . . .

Connects one side of heating element to power. Energized whenever WLC (LLCO) coil
is energized.

Contactor (2CON)
Regulating . . . . . . . . . . . .

Connects heating element to power. On constantly when temperature controller is calling
for heat.

Element, Heating . . . . .

Heats reservoir jacket fluid. The heat in the fluid is then transferred to kettle.

Fuse, (1FU & 2FU) . . . .

Slow blow 3A fuse. Located on primary side of main transformer (1T). Protects control
circuitry from over-currents.

Switch (1PAS),
Pressure . . . . . . . . . . . . . .

Pressure cut-out protection for the reservoir jacket. Range is between 38 to 42 PSI.
Removes power from control circuit if pressure in the jacket rises above switch setting.

Transformer (1T),
Main . . . . . . . . . . . . . . . . . .

Step down transformer from line voltage to 120VAC control circuit voltage.

Switch (1S), Power . . .

Controls 120VAC to kettle control circuit.

Temperature
Controller . . . . . . . . . . . . .

Cycles power to regulating contactor (2CON) to maintain the set point temperature. An
external set point potentiometer is used for temperature adjustments.

Lamp (1LT), Power . . .

Amber (AM) colored lamp. On when power switch is on.

Lamp (2LT), Low
Water . . . . . . . . . . . . . . . . .

Red (RD) colored lamp. On when water level in the reservoir jacket drops below water
level (LLCO) probe.

Lamp (3LT), Heat . . . . .

Amber (AM) colored lamp. On when temperature controller is calling for heat.

 

Electric Countertop Tilting Kettles, K6ETT, K12ETT, K20ETT - ELECTRICAL OPERATION

F35496 Rev. A (1117)

Page 20 of 28

Summary of Contents for K12ETT ML-136068

Page 1: ...truments and skills required to perform the procedure Procedures for which you do not have the necessary tools instruments and skills should be performed by a trained Vulcan Service Technician The rep...

Page 2: ...OMETER 7 HEATING ELEMENT 8 KETTLE ASSEMBLY 9 BEARINGS 12 SHAFT SEAL 13 PIVOT STOP PIN 14 SERVICE PROCEDURES AND ADJUSTMENTS 15 TEMPERATURE CONTROLLER TEST 15 POTENTIOMETER TEST 16 THERMOCOUPLE TEST 16...

Page 3: ...UPDATE SERVICE UPDATE November 2017 Updated Reservoir Jacket Volume chart in FILLING THE RESERVOIR JACKET Electric Countertop Tilting Kettles K6ETT K12ETT K20ETT SERIVE UPDATE Page 3 of 28 F35496 Rev...

Page 4: ...nd sauces MODELS COVERED The 6 and 12 gallon kettles can be mounted to a counter top or optional stand The 20 gallon kettle is a floor model mounted to its own stand Electric Countertop Tilting Kettle...

Page 5: ...vice procedures for volumes ELECTRICAL SPECIFICATIONS Volts Phase K6ETT K12ETT K20ETT Total KW Amps Total KW Amps Total KW Amps 208 1 7 50 36 12 58 12 58 240 1 10 0 42 16 67 16 67 208 3 7 50 22 12 33...

Page 6: ...MER CONTACTORS AND TEMPERATURE CONTROL Disconnect the electrical power to the machine and follow lockout tagout procedures 1 Remove COVERS AND PANELS 2 Disconnect lead wires from component being repla...

Page 7: ...ottom of kettle 6 Reverse procedure to install 7 Remove air from reservoir jacket as outlined under VENTING procedure 8 Check for proper operation NOTE NOTE Pressure switch setting is fixed and should...

Page 8: ...ut of way Fig 8 4 Note lead wire locations and disconnect wires from heating element 5 Remove mounting bolts securing heating element to kettle Fig 9 6 Reverse procedure to install Use a new heating e...

Page 9: ...iring harness connector 5 Note lead wire locations and disconnect from load side of contactors 6 Remove wire tie securing lead wire bundle to control box 7 Remove three set screws on pivot stop collar...

Page 10: ...eservoir jacket is completely vented B Place kettle on floor with the pressure relief valve and reservoir jacket fill elbow facing up C Remove Table 4 D Remove Water Level Probe E Position kettle asse...

Page 11: ...op collar Position pivot stop collar as shown in the picture below Set screws should remain out of collar A Slide pivot stop collar onto support shaft Operate tilt lock then slide collar against inner...

Page 12: ...age with the slot in pivot stop collar and not catch or bind when operated B Tilt kettle to horizontal position and verify pivot stop pin engages with the next slot in pivot stop collar C Return kettl...

Page 13: ...from control box housing Fig 24 3 Clean mounting surface on control box housing then install replacement shaft seal 4 Install KETTLE ASSEMBLY K20ETT Only 1 Support kettle using 2x4 blocks of wood 2 R...

Page 14: ...ve Control Box Cover 2 Remove retaining ring from pivot stop pin Fig 28 3 Reverse procedure to install NOTE When installing apply Lubriplate 630 AA to mating surfaces on pivot stop pin Ensure pivot st...

Page 15: ...of travel A Verify heat light amber comes on and heating element is energized B If heat light does not remain on or flashes momentarily as temperature setting is slowly increased verify condition of...

Page 16: ...ith shaft turned fully clockwise B If the resistance value increased smoothly without sudden drops or spikes and the full travel resistance value is within tolerance then potentiometer is functioning...

Page 17: ...urrent draw is the preferred method over a resistance check when an amp clamp meter is available A If current draw is not correct then replace heating element 4 Check for proper operation MODEL VOLTAG...

Page 18: ...valve seating or built up debris Manually operate the valve several times to reseat Repeat venting procedure 2 If pressure relief valve is malfunctioning install a replacement and check for proper op...

Page 19: ...position and allow fluid to drain into container Remove pipe plug from reservoir jacket fill elbow rear of kettle to facilitate draining and provide opening for re fill NOTE Clean threads and apply se...

Page 20: ...de of main transformer 1T Protects control circuitry from over currents Switch 1PAS Pressure Pressure cut out protection for the reservoir jacket Range is between 38 to 42 PSI Removes power from contr...

Page 21: ...COMPONENT LOCATION Fig 34 Electric Countertop Tilting Kettles K6ETT K12ETT K20ETT ELECTRICAL OPERATION Page 21 of 28 F35496 Rev A 1117...

Page 22: ...Fig 35 Electric Countertop Tilting Kettles K6ETT K12ETT K20ETT ELECTRICAL OPERATION F35496 Rev A 1117 Page 22 of 28...

Page 23: ...the water level control With the kettle in the full upright position and the fluid level in the reservoir jacket in contact with the LLCO probe the LLCO relay coil is energized The LLCO relay contacts...

Page 24: ...T8 on temperature controller 1 Heat light 3LT amber goes out 2 Regulating contactor 2CON de energized and powered is removed from heating elements 6 Kettle heat cycles with the temperature controller...

Page 25: ...SCHEMATIC DIAGRAM Fig 38 Electric Countertop Tilting Kettles K6ETT K12ETT K20ETT ELECTRICAL OPERATION Page 25 of 28 F35496 Rev A 1117...

Page 26: ...WIRING DIAGRAM Heating Element Wiring Fig 39 Electric Countertop Tilting Kettles K6ETT K12ETT K20ETT ELECTRICAL OPERATION F35496 Rev A 1117 Page 26 of 28...

Page 27: ...Fig 40 Electric Countertop Tilting Kettles K6ETT K12ETT K20ETT ELECTRICAL OPERATION Page 27 of 28 F35496 Rev A 1117...

Page 28: ...not lit heat light is not lit 1 Pressure switch 1PAS malfunction 2 Temperature sensor malfunction potentiometer malfunction or temperature controller malfunction 3 Interconnecting wiring malfunction...

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