Vulcan C24EA3-LWE Service Manual
SERVICE MANUAL
C24EA-LWE SERIES
COUNTERTOP STEAMER
C24EA3-LWE ML-152030
C24EA5-LWE ML-152031
C24EA5-LWE SHOWN
- 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.
A product of Vulcan-Hart 3600 North Point Blvd Baltimore, MD 21222
F45559 (0615)
C24EA-LWE SERIES COUNTERTOP STEAMER
TABLE OF CONTENTS
GENERAL .................................................................................................. 4
INTRODUCTION ....................................................................................... 4
INSTALLATION, OPERATION AND MAINTENANCE .................................................... 4
MODELS ............................................................................................... 4
SPECIFICATIONS ...................................................................................... 4
LUBRICATION AND SEALANT ......................................................................... 5
TOOLS ................................................................................................. 6
COVERS AND PANELS .................................................................................... 7
RIGHT AND LEFT SIDE PANELS ....................................................................... 7
TOP COVER ........................................................................................... 7
REAR PANEL .......................................................................................... 8
DOOR ...................................................................................................... 9
REMOVAL ............................................................................................. 9
GASKET ............................................................................................... 9
DOOR HANDLE ........................................................................................ 9
REMOVAL ......................................................................................... 9
INSTALLATION ................................................................................... 10
LATCH ASSEMBLY ................................................................................... 10
REMOVAL AND DISASSEMBLY .................................................................. 10
ASSEMBLY ....................................................................................... 11
INSTALLATION ................................................................................... 11
HINGE BEARINGS .................................................................................... 12
DOOR LATCH ADJUSTMENT ......................................................................... 12
OPENING A JAMMED DOOR ..................................................................... 12
ADJUSTMENT .................................................................................... 13
DRAIN BOX ............................................................................................... 14
REMOVAL AND REPLACEMENT ..................................................................... 14
COOKING COMPARTMENT .............................................................................. 15
REMOVAL AND REPLACEMENT ..................................................................... 15
THERMOSTATS .......................................................................................... 17
HOLD THERMOSTAT ................................................................................. 17
HIGH-LIMIT THERMOSTAT ........................................................................... 17
REMOVAL ........................................................................................ 17
INSTALLATION ................................................................................... 18
CONDENSATE THERMOSTAT ........................................................................ 18
TIMER .................................................................................................... 20
REMOVAL AND REPLACEMENT ..................................................................... 20
SOLID STATE CONTACTOR, PID CONTROLLER AND SENSOR PROBE ................................. 21
SOLID STATE CONTACTOR .......................................................................... 21
REMOVAL & REPLACEMENT ..................................................................... 21
PID CONTROLLER ................................................................................... 21
REMOVAL AND REPLACEMENT ................................................................. 21
DIAGNOSTIC TEST ............................................................................... 22
SENSOR PROBE ..................................................................................... 23
REMOVAL AND REPLACEMENT ................................................................. 23
SENSOR PROBE TEST ........................................................................... 23
HEATING ELEMENT ...................................................................................... 24
REMOVAL AND REPLACEMENT ..................................................................... 24
DIAGNOSTIC CHECKS ............................................................................... 25
F45559 (0615) Page 2 of 57
C24EA-LWE SERIES COUNTERTOP STEAMER
WATER LEVEL CONTROL COMPONENTS ............................................................... 27
WATER LEVEL CONTROL - OPERATION ............................................................. 27
WATER LEVEL CONTROL BOARD ................................................................... 28
WATER LEVEL PROBES .............................................................................. 28
FILTERED AND NON-FILTERED WATER SOLENOID VALVES ........................................ 29
FILTERED WATER SOLENOID VALVE ............................................................ 29
NON-FILTERED COLD WATER SOLENOID VALVE ............................................... 30
MOTORIZED DRAIN VALVE .......................................................................... 30
SWITCHES, LIGHTS, BUZZER AND SOLENOIDS ......................................................... 33
ON/OFF SWITCH ..................................................................................... 33
INDICATOR LIGHT ASSEMBLY ....................................................................... 33
DOOR SWITCH ....................................................................................... 33
REMOVAL ........................................................................................ 33
INSTALLATION ................................................................................... 34
PRESSURE SWITCH (NON-ADJUSTABLE) ........................................................... 34
PRESSURE SWITCH (ADJUSTABLE) ................................................................. 36
VACUUM RELIEF SOLENOID ......................................................................... 38
BUZZER .............................................................................................. 39
STEAM GENERATOR TANK .............................................................................. 40
REMOVAL AND REPLACEMENT ..................................................................... 40
ELECTRICAL OPERATION ................................................................................ 42
COMPONENT FUNCTION ............................................................................ 42
COMPONENT LOCATION ............................................................................. 44
SEQUENCE OF OPERATION ......................................................................... 49
ELECTRICAL SYMBOLS DIAGRAM ................................................................... 52
WIRING DIAGRAM - HEATING ELEMENTS ........................................................... 53
SCHEMATIC DIAGRAM ............................................................................... 55
TROUBLESHOOTING ..................................................................................... 56
TROUBLESHOOTING ................................................................................. 56
© VULCAN 2015
Page 3 of 57 F45559 (0615)
C24EA-LWE SERIES COUNTERTOP STEAMER - GENERAL
GENERAL
INTRODUCTION
This manual is applicable to the models and ML numbers listed on the cover page. Procedures apply to all models
unless specified otherwise.
LWE Series Steamers
The low water and energy use steamers (LWE) provide energy and water saving steam generation that meets
ENERGY STAR® performance levels. The steamers feature an electronic PID Controller and Solid State Contactor
that work together to "pulse" power to the heating elements during a cook cycle and reduce the amount electrical
energy and water consumed.
Steam Cooking
Atmospheric steamers offer an efficient way to produce many foods in either small portions or larger batches.
Atmospheric convection steam cooking will steam cook fresh foods or will steam defrost and cook frozen foods
providing the maximum color, flavor and nutritional value with the least expenditure of energy and labor. The
atmospheric steaming compartment allows the operator to open and close the door anytime during a cooking cycle.
The generator element will shut off when the door is opened then re-start when the door is closed.
INSTALLATION, OPERATION AND MAINTENANCE
For detailed installation, operation and cleaning instructions refer to F35428 Installation & Operation Manual sent
with each unit. The manual is also available online at www.vulcanequipment.com.
MODELS
Model Designations (based on 2.5 inch pan depth)
C24EA3-LWE three pan capacity and professional controls*
C24EA5-LWE five pan capacity and professional controls*
NOTE: (*) Low Water & Energy (LWE) models do not use a super heater as due other countertop models with
professional controls.
SPECIFICATIONS
NOTE: All C24EA LWE steamers are shipped pre-wired for 208/50/60/3 or 480V/50/60/3 operation. 208V 3 phase
is an unbalanced load and the value listed for amperage is the maximum on any leg. The steamer can be field
converted from 208V/50/60/3 electrical service by disconnecting the fourth heating element wires to the contactors.
See WIRING DIAGRAM - HEATING ELEMENTS for proper connections. If field converting, check transformer for
proper voltage setting. The LWE units are not designed to operate on single phase.
F45559 (0615) Page 4 of 57
C24EA-LWE SERIES COUNTERTOP STEAMER - GENERAL
ELECTRICAL SPECIFICATIONS
3 PHASE AMPERAGE
MODEL
C24EA3-LWE 8.5 50/60 27.1 27.1 17.7 20.5 20.5 20.5 10.2 10.2 10.2
C24EA5-LWE 15.0 50/60 47.9 47.9 31.3 36.1 36.1 36.1 18.0 18.0 18.0
WATER SUPPLY REQUIREMENTS
Supply pressure should be 20-60 psig
In line strainer for supply line
(Supplied)
Hardness* less than 3 grains
Silica less than 13 ppm
Total Chlorine less than 0.1 ppm
PH range 7 to 8
Undissolved Solids less than 5 microns
NOTE: *17.1 ppm = 1 grain of hardness.
0.1 ppm will cause permanent damage to the steam
generator and cooking compartment. Contact water
filter system manufacturer to ensure this requirement
is met.
Hardness above 4 grains/gal should be treated by
water conditioner, water softener or in-line treatment.
Water Conditioning
It is recommended that a local water treatment
specialist be consulted before the installation of any
steam generating equipment.
TOTAL
kW
Chlorine and Chloramine above levels of
Hz.
208V 240V 480V
L1 L2 L3 L1 L2 L3 L1 L2 L3
—
2. Causes premature failure of the heaters.
3. Water level probes will give false readings.
4. Thermostat bulbs will sense temperature
incorrectly.
These problems are common to any manufacturer's
steamer regardless of design, but they can all be
prevented by furnishing the steam generator tank with
properly conditioned water.
Other chemical properties in water supplies can also
affect good steam generation and vary from within
each state and locality.
The water level probes in the steam generator tank
use ions in the water to detect the water level. Do not
use fully demineralized or de-ionized water since it is
non-conductive and the water level cannot be
detected.
NOTE: The use of strainers or filters will not remove
minerals from the water.
Steamers that operate over a long period of time
without the benefit of properly conditioned water,
which have developed a heavy scale build up, should
be cleaned before connecting to a conditioned water
supply.
Furnishing the steam generator with properly
conditioned water to reduce scale formation is
important. Scale formation will reduce steam output,
cause premature component failure and shorten
equipment life. Most water supplies contain scale
producing minerals such as calcium and magnesium.
As steam is generated, the minerals remain and
dissolve into the remaining water. As the
concentration of these minerals increases past a
certain point, they precipitate from the water and coat
the inside of the tank, heating elements, thermostat
bulbs and water level probes. Because of the high
temperature of these surfaces, the precipitated
minerals bake onto them and become very difficult to
remove.
This phenomenon causes several problems:
1. Reduces the heat transfer efficiency of the
heaters.
Page 5 of 57 F45559 (0615)
LUBRICATION AND SEALANT
Component Type
Heating Element Screws Never Seez®
Door Handle Sliding
Bracket
Rotary Shaft Seal (timer) Petrogel, lubricant
All NPT Fittings
Door Striker Threads
Door Housing Screw
Threads
Lubriplate® 630AA
Loctite® 565™, pipe
thread sealant,
Loctite® 271™, thread
sealer
Loctite® 242™, thread
sealer
C24EA-LWE SERIES COUNTERTOP STEAMER - GENERAL
TOOLS
• Standard set of hand tools.
• Pipe thread sealant.
• VOM with ability to measure micro amp current.
VOM with minimum of NFPA-70E CAT III 600V,
UL/CSA/TUV listed. Sensitivity of at least 20,000
ohms per volt. Meter leads must also be rated at
CAT III 600V.
• Clamp on type amp meter for measuring heating
element current.
Special
• Torque Wrench - Capable of measuring 70 in-lb.
• RTV 109 Silicone Sealant or equivalent for use
when replacing door gasket.
• High temperature aluminum foil tape for use
when securing insulation around cooking
compartment.
Fig. 1
• Anti-static kit for handling electronic circuit
boards (purchase locally).
• Pressure Gauge Assembly for use when
checking and adjusting pressure switch:
• Pressure Gauge - 0 to 15 psi, 1/4" NPT,
recommended Grainger Part No. 36TW02
or equivalent for steamers with nonadjustable pressure switch.
• Low Pressure Gauge - 0 to 5 psi, 1/4" NPT,
recommended Grainger Part No. 2C641 or
equivalent for steamers with adjustable
pressure switch.
• Water Hose to Pipe Coupling - 3/4" FGHT x
½" FNPT- swivel type, double female brass,
Grainger Part No. 4KG87 or equivalent.
• Reducer Bushing - ½" MNPT x 1/4" FNPT
brass, Grainger Part No. 6AYW8, package
of 10 or single bushing equivalent (purchase
locally).
F45559 (0615) Page 6 of 57
C24EA-LWE SERIES COUNTERTOP STEAMER - COVERS AND PANELS
COVERS AND PANELS
RIGHT AND LEFT SIDE PANELS
Disconnect the
electrical power to the machine and
follow lockout / tagout procedures.
NOTE: Removal of left side panel is identical to the
procedure for the right side panel.
1. Remove screws (qty. 2) from the bottom of panel
being removed.
Fig. 3
2. Lift top cover at the rear to access vent hose Fig.
4 then remove clamp securing hose to vent tube.
Fig. 2
2. Pull bottom of panel out and slide down to clear
top cover.
3. Reverse procedure to install.
TOP COVER
Disconnect the
electrical power to the machine and
follow lockout / tagout procedures.
1. Remove screws Fig. 3 (qty. 2) securing top cover
to rear panel.
Fig. 4
3. Remove RIGHT AND LEFT SIDE PANELS.
4. Remove mounting hardware [1] Fig. 5 securing
top cover to front panel. The mounting hardware
is located on both sides of the cooking
compartment.
5. Disconnect the delime hose [2] Fig. 5 from delime
port fitting.
Page 7 of 57 F45559 (0615)
C24EA-LWE SERIES COUNTERTOP STEAMER - COVERS AND PANELS
Fig. 5
6. Lift top cover off machine.
7. Reassemble parts removed in reverse order.
REAR PANEL
2. Remove RIGHT SIDE PANEL.
3. Disconnect vacuum relief hose Fig. 7 from fitting
on rear panel.
Fig. 7
4. Lift top cover at the rear to access vent hose Fig.
8 then remove clamp securing hose to vent tube.
Disconnect the
electrical power to the machine and
follow lockout / tagout procedures.
1. Remove screws
cover to rear panel and the rear panel to steamer
frame.
Fig. 6 (qty. 4) securing the top
Fig. 8
5. Remove rear panel from machine.
6. Reassemble parts removed in reverse order.
Fig. 6
NOTE: If water or drain connections interfere with rear
panel removal, turn off water supply and disconnect
from machine.
F45559 (0615) Page 8 of 57
C24EA-LWE SERIES COUNTERTOP STEAMER - DOOR
REMOVAL
Disconnect the
electrical power to the machine and
follow lockout / tagout procedures.
1. Close door.
2. Remove LEFT SIDE PANEL.
3. Remove nuts from upper hinge located inside
front panel.
DOOR
Fig. 10
3. Remove gasket plate.
4. Remove gasket from inner door panel.
Fig. 9
4. Open door slightly, and while holding door, pull
upper hinge away from front panel. Open door
slightly, and while holding door, pull upper hinge
away from front panel.
5. Pull upper hinge out of upper door hinge bushing.
6. Lift door assembly up and off lower door hinge.
7. Reinstall parts removed in reverse order of
removal.
8. Check door for fit and proper sealing of gasket.
GASKET
1. Open door.
2. Remove the shoulder screws and pan pusher
bracket from gasket plate.
5. Remove RTV from bottom part of inner door
panel. Apply new RTV 109 to bottom of door
where shown when assembling gasket to door.
Fig. 11
6. Place a small amount of RTV109 into the inner
door panel gasket screw holes before assembly.
7. Position the new gasket on gasket plate and
reverse procedure to install.
DOOR HANDLE
Removal
1. Open door.
2. Remove screws (qty. 4) from the top and bottom
of door assembly.
3. Pull outer door housing away from inner door
panel starting at the hinge side of door to
separate the door halves.
Page 9 of 57 F45559 (0615)
C24EA-LWE SERIES COUNTERTOP STEAMER - DOOR
Fig. 12
NOTE: The smaller radius of the step spacers fit into
the slots of the outer door housing and is used to
provide clearance for handle operation.
4. Remove lock nuts and stepped spacers from
threaded studs of door handle.
Fig. 14
4. Install lock nuts and tighten until no gap exists
between handle, step spacer and lock nut. Do not
over-tighten lock nuts.
5. Close inner door panel so that latch mechanism
engages striker on front panel.
6. Install outer door housing onto inner door panel.
7. Align the top and bottom screw holes of outer
door housing with inner door panel.
Fig. 13
Installation
1. Apply Lubriplate 630AA around slots of outer
door housing where the step spacers contact
housing.
2. Install door handle into outer door housing such
that hinge side of door housing is to the left and
arrow on handle is pointed upward.
3. Install step spacer with smaller radius toward
handle and door housing. Smaller radius is a slip
fit with outer door housing slot.
Fig. 15
8. Apply Loctite 242 to threads of screws before
assembling.
9. Install screws to secure door halves together.
10. Check opening and closing operation of door.
LATCH ASSEMBLY
Removal and Disassembly
1. Separate outer door housing assembly from
inner door panel as outlined under DOOR
HANDLE.
2. Remove screws securing latch assembly to inner
door panel and remove latch mechanism.
F45559 (0615) Page 10 of 57
C24EA-LWE SERIES COUNTERTOP STEAMER - DOOR
Fig. 16
3. Remove E-clip from latch assembly pins and pull
pins from latch mechanism.
3. Assemble sliding bracket into stationary bracket.
4. While holding head of spring pin against bottom
of sliding bracket, insert spring pin into keeper
hole in bottom of stationary bracket.
Fig. 19
A. Secure spring pin in place with retaining pin.
Fig. 17
4. Remove retaining pin from spring pin.
5. Separate sliding bracket from stationary bracket.
NOTE: Install pins such that heads of pins will be
facing inward toward hinge side of inner door panel
when latch assembly is installed.
5. Install pins to assemble stationary and sliding
brackets together.
A. Secure pins into position with E-clip.
Installation
1. Install latch assembly onto inner door panel with
spring pin toward bottom of door panel.
A. Apply Loctite 271 to threads of screws
before assembly and secure latch assembly
to inner door panel.
Fig. 18
Assembly
1. Apply Lubriplate 630AA to sides of sliding
bracket.
2. Insert spring pin into bottom of sliding bracket.
A. Place spring over spring pin.
Fig. 20
2. Install outer door housing assembly as outlined
in DOOR HANDLE.
3. Check opening and closing operation of door.
Page 11 of 57 F45559 (0615)
C24EA-LWE SERIES COUNTERTOP STEAMER - DOOR
4. Check steamer for proper operation and leaks
around door seal.
HINGE BEARINGS
Disconnect the
electrical power to the machine and
follow lockout / tagout procedures.
1. Close door.
2. Remove LEFT SIDE PANEL.
3. Remove nuts from upper hinge located inside
front panel.
4. Open door slightly, and while holding door, pull
upper hinge away from front panel.
Fig. 22
A. Press hinge bearing fully into door assembly
using a C-clamp or equivalent.
10. Reassemble parts removed in reverse order.
11. Check door for fit and proper door gasket sealing.
DOOR LATCH ADJUSTMENT
Fig. 21
5. Pull upper hinge out of upper door hinge bearing.
6. Lift door assembly up and off lower door hinge.
7. Pry hinge bearing out from door assembly.
8. Remove outer door housing.
Do not drive bearing into place. The inner
door panel could be damaged. Press bearing into
position.
NOTE: When replacing door hinge bearings, replace
both hinge bearings.
9. Position replacement hinge bearing over hinge
opening in door assembly.
Disconnect the
electrical power to the machine and
follow lockout / tagout procedures.
Should the steamer door jam and cannot
be opened, do not force or pry the door as damage
will occur.
Opening a Jammed Door
1. Lift up on bottom of door at the handle end to
disengage latch.
A. If door does not open, remove RIGHT SIDE
PANEL.
B. Locate the striker [1] Fig. 23 that catches on
door latch beside front panel of steamer.
F45559 (0615) Page 12 of 57
Fig. 23
C24EA-LWE SERIES COUNTERTOP STEAMER - DOOR
C. Remove the mounting nut and lockwasher
[1] Fig. 24 from striker to release it from the
front panel.
Fig. 24
D. Open door.
2. Remove striker.
3. Remove any burrs on striker that may cause latch
to stick.
4. Apply Loctite 271 to threads of striker.
5. Reinstall striker with slot pointing upward. Hand
tighten striker nut then perform
proper door latching.
Adjustment
1. With striker installed and the mounting nut ready
to be tightened, close door to center the striker in
front panel mounting hole.
2. Open door and check striker slot for horizontal
alignment. The slot on striker must be kept
horizontal in order for door latch to catch properly
and latch.
3. Once proper slot alignment has been set, hold
striker close to its base then tighten the striker
nut.
Do not damage striker slot when
tightening or door may not latch properly.
NOTE: Do not over-tighten nut. If over-tightened,
striker may turn and change alignment.
4. Check door latching for proper operation.
Adjustment for
NOTE: If door does not open easily, add shims
between striker and cabinet front. When adding shims
make certain that door gasket seals properly and
steamer does not leak. Remove shims as necessary
until leaking stops.
Page 13 of 57 F45559 (0615)
C24EA-LWE SERIES COUNTERTOP STEAMER - DRAIN BOX
DRAIN BOX
REMOVAL AND REPLACEMENT
Disconnect the
electrical power to the machine and
follow lockout / tagout procedures.
1. Turn off machine to drain steam generator tank.
Allow steamer to complete drain cycle.
A. Turn off water supply.
2. Disconnect the drain plumbing from drain box
outlet fitting at the rear of steamer.
3. Remove RIGHT AND LEFT SIDE PANELS.
4. Disconnect condensate thermostat wires [1] Fig.
25.
Fig. 26
7. Remove mounting nuts Fig. 27 (qty. 2) securing
drain box to valve cabinet bracket at rear of
steamer.
A. Remove condensate thermostat [2] Fig. 25
from drain box. Retain for use on
replacement drain box.
5. Disconnect drain water cooling solenoid hose [3]
Fig. 25 and cooking compartment drain hose [4]
Fig. 25 from drain box.
Fig. 25
6. Access steam generator drain hose Fig. 26 from
right side of machine and disconnect from drain
box.
Fig. 27
8. Remove drain box from steamer.
9. Remove hose barb fitting for the drain water
cooling solenoid hose from drain box. Retain for
use on replacement drain box.
10. Reassemble parts removed in reverse order.
NOTE: When installing condensate thermostat and
hose barb fitting, apply thread sealant to pipe threads.
11. Check steamer for proper operation and leaks
around condensate thermostat and hose
connection points.
F45559 (0615) Page 14 of 57
C24EA-LWE SERIES COUNTERTOP STEAMER - COOKING COMPARTMENT
COOKING COMPARTMENT
REMOVAL AND REPLACEMENT
Disconnect the
electrical power to the machine and
follow lockout / tagout procedures.
NOTE: The cooking compartment and front panel are
constructed as an assembly and cannot be separated.
1. Turn off machine to drain steam generator tank.
Allow steamer to complete drain cycle.
A. Turn off water supply.
2. Remove and TOP COVER.
3. Remove DOOR from steamer.
A. Remove lower hinge from compartment
front panel.
4. Remove TIMER, INDICATOR LIGHT
ASSEMBLY, ON/OFF SWITCH and STRIKER
as outlined in each procedure.
5. Remove mounting nut [1] Fig. 28 securing the top
of door switch assembly [2] Fig. 28 to
compartment front panel.
Fig. 29
8. Disconnect compartment drain hose [1] Fig. 30
from rear of cooking compartment [2] Fig. 30.
Fig. 30
9. Remove bolts securing cooking compartment
front panel to louvered panel below it. Three of
the bolts are located on the controls side and one
bolt on the opposite side.
Fig. 28
6. Remove the vacuum breaker [1] Fig. 29 from
cooking compartment.
7. Disconnect steam hose [2] Fig. 29 from the
steam port inlet fitting on cooking compartment.
A. Remove the steam port inlet fitting. Retain
for reuse.
Fig. 31
10. Remove vent hose [1] Fig. 32 from sensor tube
[2] Fig. 32.
Page 15 of 57 F45559 (0615)
C24EA-LWE SERIES COUNTERTOP STEAMER - COOKING COMPARTMENT
Fig. 32
11. Remove SENSOR PROBE from sensor tube.
A. Remove sensor probe fitting from sensor
tube. Retain for reuse.
12. Remove mounting nuts [1] Fig. 33 (qty. 4)
securing rear of cooking compartment to the
vertical mounting brackets [2] Fig. 33.
Fig. 33
13. Remove cooking compartment assembly from
steamer frame.
14. Remove mounting nuts (qty. 2) securing sensor
tube bracket to cooking compartment. Retain
sensor tube bracket for reuse.
15. Remove insulation from old cooking
compartment and install it around the
replacement cooking compartment. Secure
using high temperature aluminum foil tape.
16. Reinstall parts removed in reverse order.
17. Check DOOR LATCH ADJUSTMENT.
F45559 (0615) Page 16 of 57
C24EA-LWE SERIES COUNTERTOP STEAMER - THERMOSTATS
THERMOSTATS
HOLD THERMOSTAT
Disconnect the
electrical power to the machine and
follow lockout / tagout procedures.
1. Turn off machine to drain steam generator tank.
Allow steamer to complete drain cycle.
A. Turn off water supply.
2. Remove RIGHT SIDE PANEL.
3. Disconnect electrical lead wires [1] Fig. 34 from
hold thermostat.
4. Remove hold thermostat [2] Fig. 34 from steam
generator tank.
HIGH-LIMIT THERMOSTAT
Disconnect the
electrical power to the machine and
follow lockout / tagout procedures.
Removal
1. Turn off machine to drain steam generator tank.
Allow steamer to complete drain cycle.
A. Turn off water supply.
2. Remove RIGHT AND LEFT SIDE PANELS and
TOP COVER.
3. Access HEATING ELEMENT.
4. Note mounting position of capillary bulb [1] Fig.
35 on heating element then compress the spring
clamp [2] Fig. 35 to remove bulb from heating
element.
5. Fully loosen the small capillary tube compression
nut [3] Fig. 35 and slide it away from heating
element.
Fig. 34
NOTE: Apply Loctite 565 to threads of hold
thermostat before assembly.
5. Reassemble parts removed in reverse order of
removal.
6. Check steamer for proper operation and leaks
around hold thermostat.
6. Remove large capillary tube mounting nut [4] Fig.
35 from heating element plate and slide it away
from heating element.
Fig. 35
7. Pull capillary bulb through mounting hole in
heating element plate.
8. Disconnect electrical wiring from high-limit
thermostat.
9. Remove high-limit thermostat [1] Fig. 36 from
mounting bracket.
Page 17 of 57 F45559 (0615)
C24EA-LWE SERIES COUNTERTOP STEAMER - THERMOSTATS
Fig. 36
Installation
1. Insert capillary bulb through large capillary tube
mounting nut.
A. Route capillary bulb through the mounting
hole in heating element plate.
B. Position capillary bulb [1] Fig. 37 at the
second bank of heating elements then
secure the bulb to heating element using
spring clamp [2] Fig. 37. Position bulb so
that it is centered across heating elements.
2. Apply pipe thread sealant to threads of large
capillary tube mounting nut then install nut to
heating element plate.
A. Pull excess capillary tubing out of heating
element through large capillary tube
mounting nut. Route capillary tube such that
there are no sharp bends or kinks.
B. Tighten small capillary tube compression
nut into the large capillary tube mounting
nut.
Fig. 37
NOTE: Install a new gasket when reassembling
steam generator tank. Temporarily secure gasket in
place with RTV 109.
3. Reinstall remaining parts removed in reverse
order.
4. Torque heating element screws to 70 in-lb
following the heating element tightening
sequence as found under HEATING ELEMENT.
5. Check steamer for proper operation and leaks
around heating element gasket and small
capillary tube compression nut.
CONDENSATE THERMOSTAT
Disconnect the
electrical power to the machine and
follow lockout / tagout procedures.
1. Turn off machine to drain steam generator tank.
Allow steamer to complete drain cycle.
2. Remove
3. Disconnect condensate thermostat wires.
F45559 (0615) Page 18 of 57
A. Turn off water supply.
LEFT SIDE PANEL.
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