CROWN DL-125 Direct Steam Stationary Kettles Instruction Manual

CROWN DL-125 Direct Steam Stationary Kettles

Product Information: Direct Steam Stationary Kettles

The Direct Steam Stationary Kettles are available in four models: DL-80F, DL-125, DL-150, and DP-80F. This manual section CO is for Model DL-125 and Model DP-80F. These kettles are manufactured by Crown Food Service Equipment, a Middleby Company, located in Toronto, Ontario, Canada. The kettles have a capacity of 80 gallons (303 liters) and are intended for commercial use only. The product manual contains important safety precautions and installation, operation, and maintenance instructions.

Product Usage Instructions

1. Before installing and operating the Direct Steam Stationary Kettles, ensure that everyone involved in its operation is fully trained and aware of precautions.
2. Ensure that the kettle is installed properly and meets all safety requirements. Improper installation, adjustment, alteration, service or maintenance can cause property damage, injury or death.
3. Do not store or use gasoline or other flammable vapors or liquids in the vicinity of this or any other appliance.
4. These kettles are intended for commercial use only and are not for household use.
5. Contact the factory, the factory representative, or the local service company to perform maintenance and repairs.
6. Retain the product manual for future reference.
   For Model DL-125 and Model DP-80F, the product manual contains the dimensions of the kettles for reference.

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.

CROWN FOOD SERVICE EQUIPMENT
A Middleby Company
70 Oakdale Road, Downsview (Toronto) Ontario, Canada, M3N 1V9

Telephone: 919-762-1000
www.crownsteamgroup.com

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 equipment.

• DANGER : This symbol warns of immediate hazards that will result in severe injury or death.
• WARNING : This symbol refers to a potential hazard or unsafe practice that could result in injury or death.
• CAUTION : This symbol refers to a potential hazard or unsafe practice that could result in injury, product damage, or property damage.
• NOTICE: This symbol refers to information that needs special attention or must be fully understood, even though not dangerous.

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
  FOR YOUR SAFETY:
  Do not store or use gasoline or other flammable vapors or liquids in the vicinity of this or any other appliance.

• 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 product is intended for commercial use only. NOT FOR HOUSEHOLD USE.

• NOTICE
  Contact the factory, the factory representative or local service company to perform maintenance and repairs.

• NOTICE
  This manual should be retained for future reference.

Copyright © 2022 by Crown. All rights reserved. Published in the United States of America.

Service Connections

• STEAM SUPPLY: 3/4” IPS (19 mm)
• CONDENSATE RETURN: 1/2” IPS (13 mm)
• COLD WATER: 3/8” (10 mm) tubing to the faucet (optional)

DIMENSIONS

D(L,P)-80F

| 80 gallons

(303 liters)

| in (mm)| 42”

(1067)

| 23.75”

(603)

| 40.5”

(1029)

| 43.88”

(1114)

| 14.13”

(359)

| 22”

(559)

| 27.5”

(699)

| 36.13”

(918)

| 35.5”

(902)

| 14”

(356)

| 82.88”

(2105)

NONE

SPECIFICATIONS

Model| Shipping Weight| Minimum Clearance|
---|---|---|---
DL-80F| 380 lbs. [172 kg]|

SIDES

|

3 [76]

|
DP-80F| 380 lbs. [172 kg]|
BACK| .5 [13]|

Direct Steam Stationary Kettles

• STEAM SUPPLY: 3/4” IPS (19 mm) 5-20 PSI (34-137 kPA). Optional 5-30 PSI (34-206 kPa).
• COLD WATER: 3/8” O.D. tubing to kettle fill faucet (OPTIONAL)
• CONDENSATE RETURN: 1/2” IPS (13 mm)

DIMENSIONS

DL-125

| 125 gallons

(473 liters)

| in (mm)| 42”

(1067)

| 28.75”

(730)

| 43.75”

(1111)

| 44”

(1118)

| 12.43”

(316)

| 22”

(559)

| 27.5”

(699)

| 36.12”

(918)

| 29.88”

(759)

| 12.0”

(305)

| 86.38”

(21.94)

DL-150

| 150 gallons

(568 liters)

| in (mm)| 42”

(1067)

| 33”

(838)

| 48”

(1219)

| 44”

(1118)

| 12.43”

(316)

| 22”

(559)

| 27.5”

(699)

| 36.12”

(918)

| 29.88”

(759)

| 12.0”

(305)

| 90.5”

(2299)

SPECIFICATIONS

As continued product improvement is a policy of Crown, specifications are subject to change without notice.

Installation

UNPACKING

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.

Installation Instructions

1. Select a location to provide drainage directly below the tangent Draw-off Valve.
2. Mark hole locations through flanged adjustable feet on DL models and through pedestal bases on DP models. Remove kettle.
3. On hole locations marked, drill holes and insert expansion shields to accommodate 5/16” size lag bolts.
4. Reposition kettle. On DL models level kettle by making necessary adjustment on flanged foot.
5. Bolt down the kettle and seal with Silastic™ or another equivalent sealing compound. Sealant must be applied not only to bolt heads but also around flanges or pedestal base making contact with the floor surfaces to fulfill NSF requirements.
6. Install a steam control valve at a convenient location near the kettle on the incoming steam line (3/4” size pipe).
7. Connect the steam line to the kettle, making sure there is a steam control valve strainer fairly convenient to the kettle.
8. Connect the kettle condensate return line to a drain or to a boiler return line. Each kettle return line must have a suitable steam trap. Boiler return lines must have a check valve.
9. The safety relief valve on the kettle must not be plugged as it is set to relieve excess pressure in the kettle.
10.  If incoming steam pressure is greater than the kettle’s maximum operating pressure then a pressure-reducing 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 coming to the kettle.
13. Check for proper operation.

Introduction

Description

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 bowl surface. All kettles are stationary, floor mounted in fixed positions either on legs with adjustable flanged feet (DL models) or pedestals (DP models).

Basic Functioning

Capacities
All models are suffixed with either – 80F, 125, 150 to indicate the capacity of that kettle in US gallons. Thus a DL-80F is a direct steam kettle mounted on legs with a capacity of 80 gallons (US).

Functioning Mode

• Crown direct connected steam jacketed kettles consist of a stainless steel bowl and a stainless steel jacket that 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 that surface.
• The temperatures 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 quicker the cooking process. For example, steam pressurized at 25 p.s.i. attains a temperature of 267 degrees Fahrenheit (130 degrees Celsius).

Operation

WARNING
The appliance and its parts are hot. Use care when operating, cleaning and servicing the appliance.

Operating Instructions

1. Ensure that the draw-off valve is closed.
2. Fill the kettle with a product to the desired level.
3. Slowly turn the steam control valve ON to the fully open position (counterclockwise).
4. The water or food should boil 2 – 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 the steam control valve depending on the type of food being prepared.
6. When food is cooked, turn off the steam, remove the food, and clean the kettle immediately to prevent residue from drying on the kettle bowl surface.

Cleaning

WARNING
The equipment and its parts are hot. Use care when operating, cleaning and servicing.

Your kettle should be cleaned immediately after each use.

1. Ensure that the steam supply is OFF.

2. Pre-rinse the inside of the kettle thoroughly and drain to remove any food particles.

3. Using a nylon brush, clean the kettle with a mild detergent and warm water rinse. Never use steel wool or scouring powder as it will scratch stainless steel.

4. Open the tangent draw-off valve to allow the soap and water solution to drain. Rinse with clean water.
   WARNING
   If you are cleaning a valve that is assembled to a kettle be sure the kettle is completely empty of any product.

5. By hand, turn the large hex nut counterclockwise on the draw-off valve until it is completely disengaged from the thread. Grasp the knob to the valve and slowly pull out the valve stem and disc. Do not allow the disc to come in contact with hard surfaces since damage to the disc may occur and result in valve leakage. Wash the valve stem, disc, and handle. Insert a nylon brush with detergent into the interior of the valve body and tangent draw-off tube and brush vigorously.

6. Replace the valve stem assembly and engage the hex nut fully by hand. Flush the kettle with clean warm water.

7. Leave the valve open when the kettle is not in use.

CAUTION
Do not use cleaning agents that are corrosive.

• Use of cleaning agents that contain chloride, acids or salts are corrosive and may cause pitting and corrosion when used over a period of time; this will reduce the life of the appliance.
• Should pitting or corrosion occur this is not covered by warranty.
• Follow the recommended cleaning instructions. Use a mild detergent, warm water and rinse thoroughly.

Maintenance

Preventive Maintenance

No preventive maintenance is required other than adhering to the Cleaning Procedure instructions.

Safety Valve Maintenance and Testing

• CAUTION
  Under normal operating conditions a “try lever test” should be performed every two months. Under severe service conditions, or if corrosion and/or deposits are noticed within the valve body, testing must be performed more often. A “try lever test” should also be performed at the end of any non-service period.

• CAUTION
  Hot, high-pressure fluid may be discharged from the body drain and vent during the “try lever” test. Care must be taken to avoid any bodily contact.

• CAUTION
  High sound levels may be experienced during the “try lever” test. Wear proper safety equipment and exercise extreme care! Test at, or near, half of the operating pressure by holding the test lever fully open for at least two seconds to flush the valve seat free of sediment and debris. Then release lever and permit the valve to snap shut.
  If the lift lever does not activate, or there is no evidence of discharge, turn off equipment immediately and contact a licensed contractor or qualified service personnel.

Troubleshooting

Draw-Off Valve Leaks
If a leak occurs through the valve stem, replace the “O” ring.

If the leak can be attributed to faulty sealing occurring between the stem disc and valve seat, then this problem may be corrected by cleaning off the dried-on food residue with an extremely fine emery cloth. If the vulcanized rubber stem piece has been damaged, it must be replaced.

NOTICE
Draw-off valve has a vulcanized rubber-coated stem for better sealing. Do not over-tighten. This may cause the rubber to pull away from the stem and permanently damage it. This is not covered under warranty.

Extremely Slow Cooking Time
If the cooking time is abnormally slow, this may be due to insufficient steam pressure and/or volume. First, determine that pressure on the incoming steam line at the kettle is within 5 p.s.i. of the rated kettle pressure.

NOTICE
Pressures approaching the rated kettle pressure are liable to set off the safety relief valve.

If required pressure is available to the kettle, then possibly the volume of steam is not sufficient.
A minimum 3/4” pipe size is required to the kettle but if the steam-generating source is at a great distance from the kettle, larger supply pipe will be required.
Finally, the core of the steam supply pipe may have debris or sealants that impede steam flow and will require disassembly and inspection.

VENTING INSTRUCTIONS
It is recommended that the “optional” steam trap assembly be installed. This should be plumbed to the exit end of the kettle. The thermostatic trap is a mechanical device that closes on high temperatures and opens when the temperature drops, allowing the water which formed from condensate to exhaust but retain the steam under pressure.

A product with the Crown name incorporates the best in durability and low maintenance. We all recognize, however, that replacement parts and occasional professional service may be necessary to extend the useful life of this appliance. When service is needed, contact a Crown Authorized Service Agency, or your dealer. To avoid confusion, always refer 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

References

• Crown Steam – Steam Cooking Solutions

Read User Manual Online (PDF format)

Download This Manual (PDF format)

Download this manual  >>