Crown DWT-20 User manual
MANUAL 10197 REV 0 (07/21)
$21.00
DIRECT STEAM WALL MOUNT TILTING KETTLES
MANUAL SECTION CO
IMPORTANT FOR FUTURE REFERENCE
Please complete this information and retain this
manual for the life of the equipment:
Model #:
___________________________
Serial #:
___________________________
Date Purchased:
_____________________
WARNING
Improper installation, adjustment, alteration, service or maintenance can cause property damage, injury
or death. Read the installation, operating and maintenance instructions thoroughly before installing or
servicing this equipment.
Model DWT
CROWN FOOD SERVICE EQUIPMENT
A Middleby Company
70 Oakdale Road, Downsview (Toronto) Ontario, Canada, M3N 1V9
Telephone: 919-762-1000 www.crownsteamgroup.com
Direct Steam Wall Mount Tilting Kettles
DWT-20, DWT-30, DWT-40, DWT-60,
DWT-80 & DWT-100
Installation & Operation Manual
INSTALLATION & OPERATION MANUAL 10197 REV 0 (07/21)
PAGE 2 OF 12
SAFETY PRECAUTIONS
Before installing and operating this equipment, be sure everyone involved in its operation is fully trained and aware of
precautions. Accidents and problems can be caused by failure to follow fundamental rules and precautions.
The following symbols, found throughout this manual, alert you to potentially dangerous conditions to the operator,
service personnel, or to the equipment.
CAUTION
WARNING
NOTICE
This symbol warns of immediate hazards that will result in severe injury or death.
This symbol refers to a potential hazard or unsafe practice that could result in injury or death.
This symbol refers to a potential hazard or unsafe practice that could result in injury, product
damage, or property damage.
This symbol refers to information that needs special attention or must be fully
understood, even though not dangerous.
DANGER
WARNING
Improper installation, operation, adjustment, alteration, service or maintenance can cause property damage, injury
or death. Read the installation, operating and maintenance instructions thoroughly before installing, operating or
servicing this equipment.
NOTICE
This manual should be retained for future reference.
NOTICE
IMPORTANT NOTES FOR INSTALLATION AND OPERATION
WARNING
This is the safety alert symbol. It is used to alert you to potential personal injury hazards. Obey all safety messages
that follow this symbol to avoid possible injury or death.
WARNING
NOTICE
Contact the factory, the factory representative or a local service company to perform maintenance and repairs
should the appliance malfunction. Refer to warranty terms.
INSTALLATION & OPERATION MANUAL 10197 REV 0 (07/21) PAGE 3 OF12
Table of Contents
Important Notes For Installation and Operation.................................................................... 2
............................................................................................................. 4
................................................................................................................... 5
INTRODUCTION ................................................................................................................ 6
....................................................................................................... 6
OPERATION ....................................................................................................................... 6
.......................................................................................................................... 7
MAINTENANCE .................................................................................................................. 10
........................................................................................................ 11
TC
INSTALLATION & OPERATION MANUAL 10197 REV 0 (07/21)
PAGE 4 OF 12
C
DIMENSIONS
SERVICE CONNECTIONS
* Pressure reducing valve is required if incoming pressure exceeds 50 PSI (345 kPa).
A B C D E F G H J
20 gallons
(76 liters)
in
(mm)
(533)
(1162)
(114)
(460)
(775)
(324)
(330)
(1441)
30 gallons
(114 liters)
in
(mm)
(610)
(127)
(510)
(775)
(343)
(1702)
(1324)
40 gallons
(152 liters)
in
(mm)
(660)
(165)
(570)
(775)
(362)
(394)
(1797)
(1363)
60 gallons
(227 liters)
in
(mm)
(750)
(1372)
(165)
(660)
(394)
(1401)
(303 liters)
in
(mm)
(1461)
(165)
(710)
(927)
(445)
(2121)
(1464)
100 gallons
(379 liters)
in
(mm)
(902)
(1524)
(165)
(762)
(432)
(514)
(2235)
(1632)
INSTALLATION & OPERATION MANUAL 10197 REV 0 (07/21) PAGE 5 OF12
IMMEDIATELY INSPECT FOR SHIPPING DAMAGE
Immediately after unpacking the steamer, check for possible shipping damage. If the steamer is found to be damaged,
save the packaging material and contact the carrier within 15 days of delivery.
Prior to installation, verify that the type of gas supply (natural or propane) and electrical service agree with the
and equipment requirements do not agree, contact your dealer immediately.
I
2. Prepare wall for kettle installation.
structure. Ensure the supporting structure is capable of the load requirements and meets the local codes
4. Bolt kettle in place through the installation holes in console to the wall.
5. Re-check kettle is level, side to side and front to back.
convenient to the kettle.
suitable steam trap. Boiler return lines must have a check valve.
must be installed in the line.
11. If large amounts of water accumulate in the steam line it will be necessary to install one or more ball float traps
in the line to eliminate the water.
12. A steam line pressure gauge is also recommended to determine the actual amount of steam being supplied to the kettle.
13. Check for proper operation.
334 334
412 412
539 539
574 574
630 630
INSTALLATION & OPERATION MANUAL 10197 REV 0 (07/21)
PAGE 6 OF 12
All Crown direct connected steam jacketed kettles pertaining to this manual are direct steam operated pressure vessels of
a double-wall stainless steel construction forming a steam chamber (jacket) enveloping the lower two thirds of the kettle
valve and a steam control valve. Options on kettles include hinged spring assisted stainless steel lid covering the kettle
product from the kettle bowl.
I
Crown direct connected steam jacketed kettles consist of a stainless steel bowl and a stainless steel jacket which
envelopes two thirds of the lower surface of the bowl thus forming a sealed pressure vessel (chamber) into which steam is
introduced by means of a manual control valve.
The kettle bowl is the container for the food product which ideally should be of a liquid or semi-liquid consistency to
achieve complete contact with the bowl surface and thus fully absorb the heat transmitted through the surface.
The temperature required for the cooking process to function adequately must be greater than the boiling point of the
liquid food product. Further, the greater the steam pressure used, the higher the temperature and consequently the
(135 degrees Celsius).
O
I
1. If kettle has draw-off valve, close it.
2. Fill kettle with product to desired level.
4. The water or food should boil 2 to 3 gallons per minute. If it does not then incoming pressure and piping
should be checked to determine that it is adequate to operate the kettle efficiently.
5. Regulate steam control valve depending on type of food being prepared.
on kettle bowl surface.
INSTALLATION & OPERATION MANUAL 10197 REV 0 (07/21) PAGE 7 OF12
I
WARNING
Disconnect the power supply to the appliance before cleaning or servicing.
WARNING
Never spray water into electric controls or components!
CAUTION
Do not use cleaning agents that are corrosive.
WARNING
The equipment and its parts are hot. Use care when operating, cleaning and servicing.
Your kettle should be cleaned immediately after each use or when cooking a different product. Before cleaning,
check that the kettle has cooled enough to touch it.
1. Rinse the inside of the kettle thoroughly and drain to remove any food particles.
2. Using a nylon brush, clean the kettle with a mild detergent and water. Never use steel wool or scouring powder as it
will scratch stainless steel. Plain steel wool can leave small pieces of steel which can rust.
depending on model, to allow the detergent and water solution to drain.
WARNING
If you are cleaning a valve that is assembled to a kettle, be sure the kettle is completely empty of any product.
tube. Brush vigorously.
INSTALLATION & OPERATION MANUAL 10197 REV 0 (07/21)
PAGE OF 12
important to use both hands because the plug is heavy.
2. Put the plug in a plastic pail that contains a mild soap solution. A plastic pail works best, as it reduces the possibility of
nicking or scratching the plug. If the plug gets scratched it may not seal correctly and could leak.
3. Use a soft cloth or soft brush and clean all surfaces.
4. Using both hands remove the valve from the soap and rinse well in another plastic pail that contains fresh water.
6. Once the kettle is washed out, return the plug into the body. Be sure the plug is inserted into the notch and turned.
Ensure the plug is tight and secure before letting go of it.
plug, follow the same instructions for washing the body. Always use both hands when handling the plugs. Reassemble the
plug into the body and use as normal.
Metal utensils should never be used as they will scratch the surface of the equipment and rust may begin to form. To
remove surface accumulation of rust from the inadvertent use of such utensils, the following procedure may be used.
CAUTION
Improper use of this procedure may damage your appliance!
stain. The appliance should not be heated and remain at room temperature during the entire cleaning process.
3. Thoroughly wash all of the vinegar away with fresh clear water. Dry the surface completely and allow one hour before
using the appliance to cook.
Following daily and period maintenance procedures will prolong the life of your equipment. Climatic conditions - salt air -
INSTALLATION & OPERATION MANUAL 10197 REV 0 (07/21) PAGE 9 OF12
To remove normal dirt, grease or product residue from stainless steel, use ordinary soap and water (with or without
detergent) applied with a sponge or cloth. Dry thoroughly with a clean cloth. Never use vinegar or any other corrosive
cleaner.
To remove grease and food splatters or condensed vapours that have baked on the equipment, apply cleanser to a
damp cloth or sponge and rub cleanser on the metal in the direction of the polishing lines. Rubbing cleanser as gently
NEVER RUB WITH A
CIRCULAR MOTION.
with SCOTCH-BRITE™ scouring pads or STAINLESS scouring pads. DO NOT USE ORDINARY STEEL WOOL as any
NEVER USE A WIRE BRUSH, STEEL
SCOURING PADS (EXCEPT STAINLESS), SCRAPER, FILE OR OTHER STEEL TOOLS
TO REMOVE HEAT TINT: Darkened areas sometimes appear on stainless steel surfaces where the area has been
steel and is not harmful. Heat tint can normally be removed by the foregoing, but tint which does not respond to this
procedure calls for a vigorous scouring in the direction of the polish lines using SCOTCH-BRITE™ scouring pads or a
STAINLESS scouring pad in combination with a powdered cleanser. Heat tint action may be lessened by not applying or
by reducing heat to equipment during slack periods.
CONTROL PANEL
cloth or steel wool. Never use cleaning solvents with a hydrocarbon base.
INSTALLATION & OPERATION MANUAL 10197 REV 0 (07/21)
PAGE 10 OF 12
M
CAUTION
CAUTION
the valve seat free of sediment and debris. Then release lever and allow the valve to snap shut.
CAUTION
Care must be taken to avoid any bodily contact.
INSTALLATION & OPERATION MANUAL 10197 REV 0 (07/21) PAGE 11 OF12
NOTICE
rubber to pull away from stem and permanently damage it.
T
T
occurring between the stem disc and valve seat, then quite often this problem can be corrected by cleaning off the
and must be replaced.
volume. First determine that pressure on incoming steam line at kettle is within 5 p.s.i. of rated kettle pressure.
Note that pressures approaching the rated kettle pressure are liable to set off the safety relief valve. If required
required to the kettle but if the steam generating source is at a great distance from the kettle, larger pipe will be
required. Finally, the core of the steam supply pipe may have debris or scalants that impede steam flow and will
require disassembly and inspection.
kettle. The thermostatic trap is a mechanical device that closes on high temperature and opens when the temperature
The temperatures required for the cooking process to function adequately must be greater than the boiling point
of the liquid food product, that is, water. The greater the steam pressure used, the higher the temperature and the
replaced by pressurized steam.
In the initial stages of the cooking process when the steam comes in contact with the cold kettle bowl surface, it
condenses and forms a large amount of water. The condensate water must be removed from the kettle jacket in
order for the kettle to function adequately. The ball valve located at the base of the kettle jacket may be opened
to remove the water. It may be necessary to repeat this procedure several times depending on the number of
batches being cooked as each batch will create condensate. If the kettle appears to be slow in heating, this would
indicate that there is water in the jacket. Open ball valve and drain. Close valve and commence operation of kettle.
INSTALLATION & OPERATION MANUAL 10197 REV 0 (07/21)
PAGE 12 OF 12
to the model number, serial number, and type of your appliance.
CROWN FOOD SERVICE EQUIPMENT
A Middleby Company
70 Oakdale Road, Downsview (Toronto) Ontario, Canada, M3N 1V9
Telephone: 919-762-1000 www.crownsteamgroup.com
This manual suits for next models
5
Table of contents
