Vulcan-Hart K6ETT User manual

Electric Countertop Tilting
Kettles, K6ETT, K12ETT, K20ETT
K6ETT ML-136067
K12ETT ML-136068
K20ETT ML-136069
- NOTICE -
This Manual is prepared for the use of trained Vulcan Service
Technicians and should not be used by those not properly
qualified.
This manual is not intended to be all encompassing. If you have
not attended a Vulcan Service School for this product, you should
read, in its entirety, the repair procedure you wish to perform to
determine if you have the necessary tools, instruments 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 reproduction, transfer, sale or other use of this Manual,
without the express written consent of Vulcan, is prohibited.
This manual has been provided to you by ITW Food Equipment
Group LLC ("ITW FEG") without charge and remains the property
of ITW FEG, and by accepting this manual you agree that you will
return it to ITW FEG promptly upon its request for such return at
any time in the future.
SERVICE MANUAL
A product of Vulcan-Hart 3600 North Point Blvd Baltimore, MD 21222
F35496 Rev. A (1117)

TABLE OF CONTENTS
SERIVE UPDATE .......................................................................................... 3
SERVICE UPDATE ..................................................................................... 3
GENERAL .................................................................................................. 4
INTRODUCTION ....................................................................................... 4
MODELS COVERED ................................................................................... 4
CONTROL PANEL ..................................................................................... 4
TOOLS ................................................................................................. 4
SPECIFICATIONS ...................................................................................... 5
REMOVAL AND REPLACEMENT OF PARTS ............................................................... 6
COVERS AND PANELS ................................................................................ 6
ELECTRICAL PANEL COMPONENTS-WATER LEVEL CONTROL, TRANSFORMER,
CONTACTORS AND TEMPERATURE CONTROL .................................................. 6
BOTTOM COMPONENTS - WATER LEVEL PROBE (LLCO), TEMP SENSOR &
PRESSURE SWITCH ............................................................................... 7
POTENTIOMETER ..................................................................................... 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
HEATING ELEMENTS ................................................................................ 17
VENTING ............................................................................................. 18
FILLING THE RESERVOIR JACKET ................................................................... 18
ELECTRICAL OPERATION ................................................................................ 20
COMPONENT FUNCTION ............................................................................ 20
COMPONENT LOCATION ............................................................................. 21
WATER LEVEL CONTROL (WLC LLCO) .............................................................. 23
SEQUENCE OF OPERATION ......................................................................... 23
SCHEMATIC DIAGRAM ............................................................................... 25
WIRING DIAGRAM .................................................................................... 26
TROUBLESHOOTING ..................................................................................... 28
TROUBLESHOOTING ................................................................................. 28
Electric Countertop Tilting Kettles, K6ETT, K12ETT, K20ETT
© VULCAN 2017
F35496 Rev. A (1117) Page 2 of 28

SERIVE 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. A (1117)

GENERAL
INTRODUCTION
General
The procedures in this manual apply to all models
unless otherwise specified. The pictures and
illustrations are of a model K6ETT countertop
tilting kettle unless otherwise noted. All
information and specifications contained in this
manual are based on the latest product
information available at the time of printing.
Countertop Tilting Kettles
The electric countertop tilting kettles are self
contained two thirds jacketed kettles. The lower
two thirds of the kettle bowl is a double wall
stainless steel construction that provides a
reservoir for a solution of heat transfer fluid and
distilled water for improved heating of the kettle
contents. The kettles are used to prepare a
variety of liquid or semi-liquid food products such
as soups, stews and 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 Kettles
K6ETT - 6 gallon
K12ETT - 12 gallon
K20ETT - 20 gallon
CONTROL PANEL
Fig. 1
TOOLS
Standard
• Standard set of hand tools.
• Pipe thread sealant.
• VOM with an AC current tester (meter sensitivity
should be at least 20,000 ohms per volt).
• Temperature meter (thermocouple type). Use for
checking kettle temperature.
• 2 gallon container to hold drained reservoir jacket
fluid.
Special
• Torque wrench (ft-lbs) for tightening heating
element mounting bolts.
• Lubriplate 630-AA Part No. 501687 for
lubrication of tilt lock pivot stop pin.
• Loctite® ODC-Free Cleaner & Degreaser
(McMaster-Carr Part No. 66415A21) or
equivalent fast drying, no residue cleaner.
• Loctite® 7471™ Primer N™ Part No. 544434-2.
• Loctite® 242™ Part No. 520228.
Electric Countertop Tilting Kettles, K6ETT, K12ETT, K20ETT - GENERAL
F35496 Rev. A (1117) Page 4 of 28

SPECIFICATIONS
Reservoir Jacket Fluid
• Water - Use only distilled water for partial re-filling of the jacket (purchase locally).
• Dowfrost heat transfer fluid Part No. 558038 (5 gallon). Use during a complete re-fill of the jacket with new
fluid. Refer to service 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 12 33
240 3 10.0 26 16 39 16 39
480 3 7.50 9 12 14 12 14
*K6ETT only - Heating elements on 208/240VAC three phase machines are not wired as a balanced load.
Electric Countertop Tilting Kettles, K6ETT, K12ETT, K20ETT - GENERAL
Page 5 of 28 F35496 Rev. A (1117)

REMOVAL AND REPLACEMENT OF PARTS
COVERS AND PANELS
Disconnect the electrical power to
the machine and follow lockout /
tagout procedures.
Control Box Cover
Fig. 2
Bottom Cover
Fig. 3
ELECTRICAL PANEL
COMPONENTS-WATER LEVEL
CONTROL, TRANSFORMER,
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
replaced.
3. Remove screws securing the component to
panel.
4. Reverse procedure to install and check for proper
operation.
Electric Countertop Tilting Kettles, K6ETT, K12ETT, K20ETT - REMOVAL AND REPLACEMENT OF PARTS
F35496 Rev. A (1117) Page 6 of 28

Fig. 4
BOTTOM COMPONENTS - WATER
LEVEL PROBE (LLCO), TEMP
SENSOR & PRESSURE SWITCH
Disconnect the electrical power to
the machine and follow lockout /
tagout procedures.
1. Open pressure relief valve until reservoir jacket
is completely vented.
2. Remove Table 4.
3. Disconnect lead wires from component being
replaced.
4. If removing pressure switch:
A. . Disconnect compression fitting from elbow
near the pressure switch.
B. Remove top nut on brass fitting to remove
pressure switch from mounting bracket.
5. Remove component from bottom 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 not
be adjusted. Clean threads and apply pipe thread
sealant when replacing pressure switch, water level
probe or temperature sensor.
Fig. 5
POTENTIOMETER
Disconnect the electrical power to
the machine and follow lockout /
tagout procedures.
1. Remove CONTROL BOX COVER.
2. Disconnect potentiometer wire from temperature
control.
3. Pull temperature dial from potentiometer shaft
and remove seal nut.
Electric Countertop Tilting Kettles, K6ETT, K12ETT, K20ETT - REMOVAL AND REPLACEMENT OF PARTS
Page 7 of 28 F35496 Rev. A (1117)

Fig. 6
4. Remove potentiometer from control panel.
5. Reverse procedure to install and check for proper
operation.
NOTE: When installing, ensure potentiometer
alignment tab is seated in positioning bracket.
Fig. 7
HEATING ELEMENT
Disconnect the electrical power to
the machine and follow lockout /
tagout procedures.
1. Open pressure relief valve until reservoir jacket
is completely vented.
2. Tilt kettle to expose the heater access cover.
3. Remove three screws where indicated. Loosen
remaining screw and allow cover to rotate out 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
element seal whenever installing heating
element. Torque mounting bolts to 40 ft-lbs and
tighten in an alternating pattern.
7. Remove air from reservoir jacket as outlined
under VENTING.
8. Check for proper operation and leaks around
heating element.
NOTE: On K6ETT only, element lengths are
staggered to fit the contour of the kettle bottom. Install
with the shortest element toward the bottom of kettle.
Electric Countertop Tilting Kettles, K6ETT, K12ETT, K20ETT - REMOVAL AND REPLACEMENT OF PARTS
F35496 Rev. A (1117) Page 8 of 28

Fig. 10
KETTLE ASSEMBLY
Disconnect the electrical power to
the machine and follow lockout /
tagout procedures.
Removal
1. Place kettle in full upright position.
2. Support kettle using 2x4 blocks of wood.
Fig. 11
3. Remove Control Box Cover.
4. Disconnect thermocouple lead wires from
temperature control and the 4 pin wiring 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.
Access third screw thru the slot in top of control
box.
Fig. 12
8. Remove outer bearing from support shaft.
Fig. 13
9. On K20ETT only.
A. Remove two bolts securing kettle tilt stop to
base.
Fig. 14
Electric Countertop Tilting Kettles, K6ETT, K12ETT, K20ETT - REMOVAL AND REPLACEMENT OF PARTS
Page 9 of 28 F35496 Rev. A (1117)

B. Remove kettle support cover.
Fig. 15
C. Remove kettle support and bearing housing
assembly from support shaft.
Fig. 16
10. Pull kettle assembly away from control box to
disengage support shaft from inner bearing and
pivot stop collar. Slide kettle onto the 2x4 blocks.
A. Pull lead wire bundle thru inner bearing and
pivot stop collar during removal.
NOTE: If support shaft of kettle assembly does not
easily disengage, apply force between control box
housing and kettle assembly to release pivot stop
collar. The support shaft should slide out of inner
bearing easily.
11. If re-installing kettle assembly, proceed to
Installation in this section. If installing a
replacement kettle assembly, remove
components as outlined below from old kettle
assembly for re-use.
A. Open pressure relief valve until reservoir
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 assembly to drain fluid into
container. Remove 1/2" pipe plug from the
reservoir jacket fill elbow to facilitate
draining.
F. Remove Temperature Sensor & Pressure
Switch including condensate coil.
G. Remove pressure relief valve assembly
plumbing and reservoir jacket fill elbow.
H. Remove HEATING ELEMENT.
I. Install all removed components onto
replacement kettle. Clean threads and apply
sealant before re-installing pipe fittings.
Installation
1. Place kettle assembly on 2x4 blocks and align
support shaft to shaft seal. Pull lead wire bundle
thru shaft seal and inner bearing.
NOTE: Bearings and shaft seal are self aligning for
easy installation. Bearings do not require lubrication.
Electric Countertop Tilting Kettles, K6ETT, K12ETT, K20ETT - REMOVAL AND REPLACEMENT OF PARTS
F35496 Rev. A (1117) Page 10 of 28