Cleveland 24-CEA-10 Service Manual

Cleveland Range

UNITED STATES

CANADA

SteamCraft 10® Convection Steamer

SERVICE MANUAL

Printed 3/93

Cleveland Range, Inc.

1333 East 179th St.. Cleveland, Ohio 44110 Phone: (216) 451-4900 • Telex: 98-0546 • FAX: (216) 481-3782

MODELS: 24-CEA-10, & 24-CGA -10

Garland Commercial Ranges 1177 Kamato Road Mississaugha, Ontario. Canada L4W1X4 Phone: (416) 624-0260 - FAX: (416) 624-0623

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

GAS LEAK INSTRUCTIONS Post in a prominent location, instructions to be followed in the event the user smells gas. This information shall be obtained by consulting the local gas supplier.

For safe and efficient operation of this equipment, this manual must be retained by the owner/user

for future reference.

PROTECTING WARRANTY COVERAGE

The warranty printed to the left specifies the owner/user's responsibility for proper installation, operation, and maintenance of the SteamCraft 10. If these responsibilities are not met, toe Limited Warranty and/or Extended Limited Warranty coverage may be adve rsely affected. The following table is provided to assist the owner/user in meeting these responsibilities. In addition, the warranty advantages of installing a SteamerGard water treatment system are explained after the table.

The Warranty Protection Table lists installation, operation, and maintenance factors that have in the past adversely affected warranty coverage. The owner/user of a SteamCraft 10 should pay particular attention to these factors to protect his warranty coverage. This table is not a comprehensive list of the owner/user's responsibilities. Cleveland Range steam products are intended for use only by professionally trained personnel To meet his responsibilities, the owner/user must supplement this guide with any additional actions consistent with the operation of steam generating food preparation equipment by a trained professional.

Warranty Protection Table

SUBJECT PAGE REFERENCE Electrical Power Requirements & Line Voltage 10 Water Quality Requirements & Analysis 11 Water Pressure 16 Vented Drain 20 Level Operation 19 Blowdown Frequency 55 & 63 Steam Generator Maintenance & Maintenance Records 67 Descaling Frequency & Procedure 68 Approved Chemical Cleaners 68 Authorized Maintenance & Repair 74

SteamerGard Water Treatment System

A SteamerGard water treatment system protects the SteamCraft 10 from impurities contained in regular lap water, especially Total Dissolved Solids (TDS) which cause lime and scale deposits in steamer equipment. The protection is so effective that Cleveland Range increases toe warranty coverage on a Steam Craft 10 installed in conjunction with a SteamerGard system to five years for parts and three years for labor on water related components, elements, valves, generators, piping, etc. However, even with a SteamerGard system installed, the owner/user should follow toe guidance of the Warranty Protection Table.

Models 24-CGA-10 and 24-CEA-10 SteamCraft 10 Service Manual

Table of Contents

Chapter Page CHAPTER 1. PRODUCT IDENTIFICATION 1

MODEL NUMBER 1 SERIAL NUMBER 1 PRODUCT INFORMATION PLATE 1

CHAPTER 2. INSTALLATION INSTRUCTIONS 7 INTRODUCTION 7 INSTALLATION POLICIES 7 INSTALLATION OVERVIEW 8 PREPARATION FOR INSTALLATION 10 Protecting The SteamCraft 10 10 Electric Power Requirements 10 Gas Supply Requirements 10 Exhaust Hood Requirements – All Models 10 Water Quality Requirement s 11 Softened, Treated, or Filtered Water 16 Water Supply System 16 Selecting The Operating Location 17 INSTALLATION INSTRUCTIONS 18 Unpacking & Inspection 18 Shipping Damage Instructions 19 Position & Level The SteamCraft 10 19 Adjustable Leveling Legs 19 Positioning & Leveling 19 Install Slide Racks 20 Install & Connect The Free Air Vented Drain Lines 20 Exhaust Hood Ventilation – All Models 22 Install Electric Power Lines 22 Connect Electrical Line 23 Install Water Supply Lines 24 Connect Water Supply Lines 26 General Connection Requirements 26 Untreated Water Connection (Without SteamGard) 27 Treated Water Connection (With SteamGard) 27 Testing Water Supply Lines 27 Install & Connect Gas Supply Lines 27 Leak-Testing Gas Supply Lines 28 Pressure Testing The Gas Supply Lines 29 Bleed Air From The Gas Supply Lines 30 Burner Ignition Test (Gas -Fired Models Only) 31 Final Setup & Checkout 33

Cleveland Range, Inc . Printed 3/93

Page ii SteamCraft 10 Service Manual Models 24-CGA-10 0 and 24-CEA-10

Table of Contents (continued)

Chapter Page Installation Checks 33

Operating Tests 34 Operating Test Preparation 34 Blowdown Inspection Procedure 35 Operating Test Procedures 35 Timer Test Procedures – Key Pad Control Panel 37 Timer Test Procedures – Dial Timer Control Panel 38

CHAPTER 3. OPERATION 41 INTRODUCTION 41

DIFFERENCES AMONG MODELS 41 Atmospheric Generator Models 41 Pressure Generator Models 41 OPERATIONAL SAFETY 41 BURNER LIGHTING 43 GAS LEAK INSTRUCTIONS 43 OPERATING MODES 43 Manual Operation 43 Timed Operation 43 Manual Timer 43 Steam Generator BlowDown 44 MAIN DISCONNECT SWITCH 44 CONTROL PANELS 44 COOKING OPERATIONS KEY PAD CONTROL PANEL 46 Summary Of Cooking Operations 46 Power ON (Automatic Fill) 47 Start Steam Supply 47 Inspect The Cooking Compartment 47 Preheat The Cooking Compartments 48 Place Food Into The Cooking Compartment(s) 49 Select The Operating Mode 49 Timed Cooking Procedure 50 Manual Cooking Procedure 51 Power OFF (Automatic Blowdown) 52 Blowdown Frequency 52 Blowdown Procedure 53 Shut Down And Cleaning (At End Of Day Or Shift) 53 DIAL TIMER CONTROL PANEL SUMMARY 55 COOKING OPERATIONS – DIAL TIMER CONTROL PANEL 56 Summary Of Cooking Operations 56 Power ON (Automatic Fill) 56

Printed 3/93 Cleveland Range, Inc.

Models 24-CGA-10 and 24-CEA-10 SteamCraft 10 Service Manual Page iii

Table of Contents (continued)

Chapter Page Start the Steam Supply 57

Inspect the Cooking Compartment 57 Preheat the Cooking Compartment(s) 57 Place Food into The Cooking Compartment(s) 58 Select the Operating Mode 58 Timed Cooking Procedure 58 Manual Cooking Procedure 59 Remove Food from The Cooking Compartment(s) 59 Power OFF (Automatic Blowdown) 60 Blowdown Frequency 60 Blowdown Procedure 60 Shut Down And Cleaning (At End Of Day Or Shift) 61

CHAPTER 4. PREVENTATIVE MAINTENANCE AND TROUBLESHOOTING 63 INTRODUCTION 63

MAINTENANCE RECORDS 63 DAILY MAINTENANCE 63 Blowdown Steam Generator 63 Clean SteamCraft 10 63 WEEKLY MAINTENANCE 63 Clean Drain 63 MONTHLY MAINTENANCE 64 Descale Steam Generator 64 YEARLY MAINTENANCE 67 Clean Water Line Strainer 67 TROUBLESHOOTING NOTES 70

CHAPTER 5. COMPONENT AND CIRCUIT FUNCTIONS 71 INTRODUCTION 71 Models Covered In This Chapter 71 Figures and Illustrations 71 SteamCraft 10 Variations 71 Steam Generator Power Source 71 Control Panel Type 72 THEORY OF OPERATION 72 Steam Generator Water Filling Cycle 72 Steam Generator Preheating 74 Steaming Functions For Model 24-CEA-10 75 Steaming Functions For Model 24-CGA-10 76 Gas Burner Ignition and Combustion Functions – Model 24-CGA-10 79 Burner Ignition and Control System 79

Cleveland Range, Inc. Printed 3/93

Page iv SteamCraft 10 Service Manual Models 24-CGA-10 and 24-CEA-10

Table of Contents (continued)

Chapter Page

Condenser and Drain Functions 80 Condenser Operation 80 Drain Valve Functions 81 Shutdown, Steam Generator And Float Cylinder Rise Functions 82 STEAMCRAFT 10 ELECTRICAL CIRCUITS – Model 24-CEA-10 83 High Voltage Circuit 83 120 VAC Circuit 83 STEAMCRAFT 10 ELECTRICAL CIRCUITS – Model 24-CGA-10 83 STEAMCRAFT 10 TIMER CIRCUITS 84 ELECTRICAL CIRCUIT COMPONENTS 84 Terminal Bloc k 84 ON/OFF Switch 85 TIMED/MANUAL Switch 85 3-Minute Timer 85 Float Assembly 86 Rinse Solenoid Valve 87 Drain Solenoid Valves 87 Water Fill Solenoid Valves 87 Condenser Solenoid Valves 87 Preheat Thermostat 88 Key Pad and Dial Timers 88 Electronic Key Pad Timer 88 Compartment Thermostat (Electronic Key Pad Units Only) 89 Mechanical Timer 89 3-Second Timer And Buzzer (Mechanical Timer Units Only) 89 Heater Element – Model 24-CEA-10 89 Dryer Element – Model 24-CEA-10 89 High Temperature Limit Switch 89 Combustion Control Module – Model 24-CGA-10 90 Combustion Air Blower 90 Air Prover Pressure Switch 90 Pilot Spark Igniter 90 Automatic Gas Valve 90 Steam Relief Solenoid Valve – Model 24-CGA-10 90 Compartment Steam Solenoid Valves – Model-CGA-10 90

CHAPTER 6. COMPONENT TESTING GUIDE 91 INTRODUCTION 91

Models Covered In This Chapter 91 Figures And Illustrations 91 Nominal Voltage Reference 91

Printed 3/93 Cleveland Range, Inc.

Models 24-CGA-10 and 24-CEA-10 SteamCraft 10 Service Manual Page v

Table of Contents (continued)

Chapter Page

COMPONENT TESTING FUNDAMENTALS 92 Visual Check 92 Connections and Wiring 92 Solenoid Valves 93 General Considerations 93 Normally Open And Normally Closed Valves And Contacts 93 Water Pressure and Control Valves 93 Measuring Resistance Through The Solenoid 93 Jammed or Blocked Valves 93 Thermostatic Snap Switches 95 Heater Element 95 Resistance Measurements 95 Insulation Resistance Measurements 96 Voltage Measurements 96 INITIAL TEST PROCEDURE – INTRODUCTION 96 Test Procedures Layout and Conventions 96 INITIAL TEST PROCEDURE – GENERAL PREPARATIONS 97 Model Numbers and Test Procedure Variations 97 INITIAL TEST PROCEDURE – MODEL 24-CGA-10 98 Set Up the Initial Test Conditions 98 COMPONENT TEST PROCEDURES 123 Initial Conditions for All Testing 123 CT:1 Drain (3-Way) Solenoid Valves 123 CT:2 3-Minute Timer 124 CT:3 Rinse Solenoid Valves 125 CT:4 Water Fill Solenoid Valves 126 CT:5 ON/OFF Switch 127 CT:6 Float Assembly 128 CT:7 Gas Control Transformer – 24 Volt Model 24-CGA-10 131 CT:8 Preheat Thermostat (Steam Generator) 131 CT:9 TIMED/MANUAL Switch 132 CT:10 Condenser Solenoid Valves 133 CT:11 Steam Relief Solenoid Valve – Model 24-CGA-10 135 CT:12 Compartment Steam Solenoid Valve – Model 24-CGA-10 136 CT:13 Mechanical Timer 137 CT:14 & CT:15 3-Second Timer And Buzzer (Mechanical Timer Units Only) 137 CT:16 Electronic Timer Transformer – 24 Volt 138 CT:17 Electronic Key Pad Timer 139 CT:18 Compartment Thermostat (Key Pad Timer Units Only) 141 CT:19 Transformer – Model 24-CEA-10 142 CT:20 & CT:21 Heater Contactor – Model 24-CEA-10 142

Cleveland Range, Inc. Printed 3/93

Models 24

CGA

-10

and

24-CEA

Table of Contents (continued)

Chapter Page

CT:22 High Temperature Limit Switch – Model 24-CEA-10 144 Terminal Block 145 CT:23 & CT:24 Heater & Dryer Elements – Model 24-CEA-10 145 CT:25 Relay R-1 – Model 24-CEA-10 147 Burner Ignition & Control System Components – Model 24-CGA-10 147 CHAPTER 7. ILLUSTRATED PARTS LISTS 149 INTRODUCTION 149 Parts Differences Among SteamCraft 10 Steamers 149 Electrical Schematics And Wiring Diagrams 149 Ordering Parts 149 CHAPTER 8. IGNITION MODULE 199 INTRODUCTION 199 HONEYWELL & WHITE -RODGERS MANUALS 199

Printed 3/93 Cleveland Range, Inc.

Steam Craft 10 Service Manual

Models 24-CGA-10, 24-CGP -10, 24-CEA-10, 24-CEP-10 SteamCraft 10 Service Manual, Chapter 1 Page 1

CHAPTER 1. PRODUCT IDENTIFICATION

Cleveland Range, Inc. assigns two product identification numbers to each SteamCraft 10: a model number and a serial number. The model number identifies the product characteristics. The serial number identifies the individual unit.

MODEL NUMBER

The operating section of this manual (Chapters 1 through 4) covers four models of the Steam Craft 10 steamers:

• Gas fired atmospheric generator 24-CGA-10

• Gas fired pressure generator. 24-CGP-10

• Electric atmospheric generator. 24-CEA-10

• Electric pressure generator 24-CEP-10

The service section of this manual (Chapters 5 through 8) covers only the atmospheric models:

• Gas fired atmospheric generator 24-CGA-10

• Electric atmospheric generator. 24-CEA-10

Each character of the model number identifies a characteristic of the steamer. The Steam Craft 10 is 24 inches wide; a Convection steamer, Electric or Gas powered, Atmospheric or Pres surized steam generator, and has the capacity for 10 cooking pans.

SERIAL NUMBER

PRODUCT INFORMATION PLATE

This manual covers all standard features and options available on

SteamCraft 10 steamers. Other than selection of options, there are

presently no significant design, parts, or operating differences among

steamers with the same model number. Figure 1-2, Sheets 1 through 4

illustrate the four SteamCraft 10 models and identify the major components.

During manufacture, SteamCraft 10's are assigned individual serial num-

bers. A typical SteamCraft 10 serial number is: WC-7350-90G-02. The left

half of the number carries design information. The right half of the number

contains the manufacturing date and the unit of the manufacturing lot The

date of our sample number is 90G-02:90=1990, G=July. 02=the second unit

of the manufacturing lot Serial numbers arc used when explaining differ-

ences in design, parts, or operation among units with the same model

number. For example: a particular part may be used on SteamCraft 10's

with serial numbers before WC-7350-90G-02, and a different part used on

steamer WC-7350-90G-02 and those manufactured after it.

The Product Information Plates list the unit's model and serial numbers, and

power and wiring requirements. These plat es are located on the left side

panel, in the lower right corner. Figure 1-1 illustrates typical SteamCraft 10

Product Information Plates. Refer to me Figure 1-2 for the location of the

plates.

Page 2 Chapter 1, SteamCraft 10 Service Manual Models 24-CGA-10, 24-CGP-10, 24-CEA-10, 24-CEP-10

Figure 1-1. SteamCraft 10 Product information Plates

Printed 3/93 Cleveland Range, Inc.

Models 24-CGA-10, 24-CGP-10, 24-CEA-10, 24-CEP-10 SteamCraft 10 Service Manual, Chapter 1 Page 3

Figure 1-2. SteamCraft 10, Models 24-CGA-10 and 24-CEA-10

with Key Pad Control Panel (Sheet 1 of 4)

Cleveland Range, Inc. Printed 3/93

1, SteamCraft 10 Service Manual Models 24-CGA-10, 24-CGP-10, 24-CEA-10, 24-CEP-10 Page 4

Figure 1-2. SteamCraft 10, Models 24-CGP-10 and 24-CEP-10

with Key Pad Control Panel (Sheet 2 of 4)

Printed 3/93 Cleveland Range, Inc.

Models 24-CGA-10, 24-CGP-10, 24-CEA-10, 24-CEP-10 SteamCraft 10 Service Manual, Chapter 1 Page 5

Figure 1-2- SteamCraft 10, Models 24-CGA-10 and 24-CEA-10

with Dial Timer Control Panel (Sheet 3 of 4)

Page 6 Chapter 1, SteamCraft 10 Service Manual Models 24-CGA-10, 24-CGP-10, 24-CEA-10, 24-CEP-10

Figure 1-2. SteamCraft 10, Models 24-CGP-10 and 24-CEP-10

with Dial Timer Control Panel (Sheet 4 of 4)

Models 24-CGA-10, 24-CGP-10, 24-CEA-10, 24-CEP-10 SteamCraft 10 Service Manual, Chapter 2 Page 7

CHAPTER 2. INSTALLATION INSTRUCTIONS

This manual and several components are packaged inside the Steam Craft 10 shipping carton. Only enough of the carton shoul d be opened to remove this manual. Do not remove the Steam Craft 10 from the carton until just before installation. If the shipping carton has already been removed and discarded, protect the Steam Craft 10 from dirt and damage during storage, site preparation, and installation as described in Protecting The Steam Craft 10, page 10.

WARNING

DEATH, INJURY, AND EQUIPMENT DAMAGE could result from improper installation of the SteamCraft 10, or from installation of a unit damaged during shipment or storage. Either of these conditions could also void the equipment warranty. DO NOT INSTALL a SteamCraft 10 suspected of damage. Install the SteamCraft 10 according to the policies and procedures outlined in this manual.

INTRODUCTION

This chapter is a guide for installation of the SteamCraft 10, model numbers 24CGA-10,24-CGP-10,24-CEA-10 and 24-CEP-10. This guide is for use by qualified professionals, and does not include all procedures and precautions in the common domain of licensed plumbers, pipe fitters, and electricians, or experienced food service equipment installers. This guide must be used in conjunction with professional experience and a thorough under standing of the local, state, and national utility, construction and sanitation codes; the most prominent of which are listed in the Installation Policies section below.

Before starting installation, the owner and the installer should read through this chapter and thoroughly understand and agree upon:

• The installation policies of Cleveland Range, Inc. as stated in Installation

Policies.

• An installation plan based on the Installation Overview and Installation Check List

• Responsibility for feed water quality and its testing as described in Preparation For Installation, Water Quality Requirements.

INSTALLATION POLICIES

The SteamCraft 10 must be installed by qualified plumbing and electrical personnel, working to all applicable national and local codes.

• In the U.S.A., equipment installation must comply with the Basic Plumbing

Code of the Building Officials and Code Administrators International, Inc. (BOCA), the National Fuel Gas Code, ANSI Z223.1-(latest edition), the National Electric Code, ANSI/NFPA No. 70-(latest edition), and the Food Service Sanitation Manual of the Food and Drug Administration (FDA).

• In Canada, equipment installation must comply with the CAN/CGA-B 149

Installation Code, the Canadian Electrical Code CSA C221and any other applicable national and local codes.

Cleveland Range, Inc. Printed 3/93

Page 8 Chapter 2, SteamCraft 10 Service Manual Models 24-CGA-10, 24-CGP-10, 24-CEA-10, 24-CEP-10

Chec

k electric power requirements.

Check gas supply requirements (gas models only).

2,3,4 10

Test supply water quality.

5,6 11

Select water treatment system.

6 16

Select operating location

Installation

Position and level steamer.

11 19

Install exhaust hood.

12 22

6 26

Test water supply lines.

Install and connect gas supply lines (gas models only).

2,3,4 27

INSTALLATION OVERVIEW

• Cleveland Range designs and manufactures equipment ID comply with applicable standards for manufacturers. Included among these certification agencies are: UL, A.G.A., ASME/N.Bd., NSF, CSA, CGA, ETL, and others.

• This equipment is designed and certified for safe operation only when permanently installed in accordance with local and/or national codes. Many local codes exist, and it is the responsibility of the owner and installer to comply with these codes.

• In no event shall the manufacturer assume any liability for damage or injury resulting from installations which are not in strict compliance wit h the Installation Instructions and the codes cited above. Specifically, the manufacturer will not assume any liability for damage or injury resulting from improper installation of equipment, including, but not limited to, temporary or mobile installations .

SteamCraft 10 installation is presented in two parts: preparation and installation. Table 2-1 and Figure 2-1 provide an overview of installation process.

Figure 2-1, Schematic Installation Diagram, illustrates the utility lines and connections required to install the SteamCraft 10. The Dimension Drawings, Figure 2-2, show the required utility connection points, dimensions, and clearances for each of the SteamCraft 10 models.

Table 2-1, Installation Check: List, outlines the overall installation process by listing, in recommended sequence, the major tasks to be performed. For each task the table references applicable notes from Figure 2-1 and the manual pages on which the task instructions begin. Complete the preparation tasks in sequence, and then the installation tasks. Installation requirements may vary from site to site; adapt the check list accordingly.

Table 2-1. Installation Check List

(Refer to Figure 2-1)

TASK FIGURE 2-1

NOTES

Preparation

Check exhaust hood requirements. 12 10

Unpack, inspect, and protect me unit.

Install and connect drain line. 9,10 20 Install and connect electrical line. 1,2 22

Install and connect water supply lines. Install water treatment system.

5,6,7,8

PAGE REFERENCE COMPLETED

Test gas supply lines (gas models only). Bleed gas line at union upstream of gas valve (gas models only) 3 30 Test burner igniter control module (gas models only). Perform final setup and checkout

31 33

Models 24-CGA-10, 24-CGP -10. 24-CEA-10, 24-CEP-10 SteamCraft 10 Service Manual Chapter 2 Page 9

INSTALLATION DIAGRAM NOTES

1 . For each unit, the installer must provide a ground con- nection and a separate fused disconnect switch.

2. The Product Identification Plate, located in the lower right corner of the left side panel, specifies the electric power and gas utility requirements.

3. A manual shut off valve and a drip leg must be installed between the main gas supply and the steamer supply lines- Bleed air from the gas line at the fitting closest to the internal automatic gas valve. Refer to Figure 2-14 for the recommended component arrangements.

4. Never exceed 14" water column (1/2 psi) gas pressure. If the gas supply pressure exceeds 14" water column, a pressure regulating valve must be installed in the gas supply plumbing to reduce the gas pressure to less than 14" water column.

5. The unit must have a cold water supply, NOT HOT. The water supply must meet the quality requirements of Table 2-2, and the pressure requirements on page 16.

6. A SteamerGard filtering system is recommended when water quality does not meet the Table 2-2 requirements,

Figure 2-1. Schematic Installation Diagram

7. Run a single water line between the main cold water supply and the tee. The two separate steam generator and condenser/blowdown supply lines are relatively short.

8. A manual shut off valve must be installed between the main water supply and the steamer supply lines- Refer to Figure 2-10 or 2-11 for recommended component arrangements.

9. The drain line must have a gravity flow away from the steamer, and must not be connected to the drain lines of any other equipment.

10. The drain line must be free air vented. If the line empties into a floor drain, there must be a one inch minimum clearance between me drain line and the floor drain openings- The floor drain must not be located under the body of the unit.

11. To maintain proper operation and full warranty cover age, the unit must be level from to back and side 10 side.

12. The flue at the back of the gas-fired units must be ventilated as specified by local and national codes

Page 10 Charter 2, SteamCraft 10 Service Manual Models 24-CGA-10, 24-CGP-10, 24-CEA-10, 24-CEP-10

PREPARATION FOR INSTALLATION

Select and prepare the SteamCraft 10 operating location before permanently positioning the unit. Protect the unit and packaged components during site preparation. Do not select the operating location or start installation before checking the electric power, gas, and water quality requirements to assure proper drainage, ventilation, and safety.

Protecting The SteamCraft 10

Do not remove the SteamCraft 10 from its shipping canon until just before installation. If me shipping canon has already been removed and discarded, refer to Unpacking and Inspection on page 18, and inspect me shipment. Remove the SteamCraft 10 and components from the immediate work area during storage, site preparation, and while running the utility supply lines to the operating location. To protect the SteamCraft 10 from dirt, and prevent loss or damage, take the following precautions as a minimum.

1. Leave pac kaged components inside the shipping canon or cooking com partment.

2. Keep the SteamCraft 10 dean by covering it with a plastic tarp or drop cloth.

3. Do not store other items on top of the SteamCraft 10.

Electric Power Requirements

Gas Supply Requirements

Exhaust Hood Requirements All Models

The characteristics of me electric power supply must match the power requirements specified on the SteamCraft 10 product identification plate. The plate is located on the left side panel, in the lower right comer, as detailed in Figure 2-2.

NEVER EXC EED 14" WATER COLUMN (1/2 psi) GAS PRESSURE. If the gas supply pressure exceeds 14" water column, a pressure-regulating valve must be installed in the gas supply plumbing to reduce the gas pressure to less than 14" water column.

• Natural gas pressure must be between 4" -14" water column.

• L.P. gas supply pressure must be between 12" -14" water column.

In addition to the required venting of gas -fired equipment, some state and local codes require me venting of steam generating equipment. It is the responsibility of me owner and/or installer to learn and comply with these codes.

• Models 24-CGA-10 and 24-CGP-10 have gas -fired steam generators with an exhaust vent on top of the unit These units MUST be installed under an exhaust hood suitable for ventilation and operation of gas -fired appliances, as specified by local and national codes.

• Models 24-CEA-10 and 24-CEP-10 have electric steam generators and do not have an exhaust vent. In some areas, local codes require installation of these units under an exhaust hood suitable for ventilation and operation of steam generating appliances.

Water Quality Requirements

CAUTION

less tha

parts per million

Alkalinity

less than

parts per million

Table

2-2.

Minimum Water Quality Requirements

Models 24-CGA-10, 24-CGP-10, 24-CEA-10, 24-CEP-10 SteamCraft 10 Service Manual, Chapter 2 Page 11

Using water not within the limits specified in this manual could void or adversely affect Cleveland Range's warranty coverage of the SteamCraft 10.

As with any steam generating equipment, poor water quality degrades SteamCraft 10 performance. If feed water is low in Total Dissolved Solids (TDS) and free of particulate matter, the steam generator, heating element, and valv es of me Steam Craft 10 will give years of trouble -free service with a minimum of maintenance.

In some areas, even potable tap water contains a variety of impurities that can cause costly problems in steam generating equipment. Of primary concern are mineral salts and other impurities, which remain behind as lime or scale deposits during the steam generating process. These deposits have caused components to fail, including nearing elements, probes, and solenoid valves. Of equal importance is me decrease in heat transfer efficiency caused by lime and scale deposits. Decreased heat transfer increases water and power consumption. Use of the SteamCraft 10 in areas with poor water quality requires installation of a SteamerGard water treatment system or increased frequency of maintenance, cleaning, and descaling.

Check the quality of supply water as described below before starting construction of the water supply lines. If a SteamerGard water treatment system must be installed to achieve acceptable water quality, install it before connecting the water supply lines to the SteamCraft 10. For more information on water treatments, refer to Softened, Treated, or Filtered Water on page 16.

Contact a local water treatment specialist for an on-the-premises water analysis. The recommended minimum feed water quality requirements for

the SteamCraft 10 are listed in Table 2-2.

Total Dissolved Solids less than 60 parts per million Silica

ph factor greater than 7.5

Page 12 Chapter 2, SteamCraft 10 Service Manual Models 24-CGA-10, 24-CGP-10, 24-CEA -10, 24-CEP-10

Figure 2-2- SteamCraft 10 Dimensions and Clearances

Model 24-CGA-10 (Sheet 1 of 4)

Printed 3/93 Cleveland Range, Inc.

Models 24-CGA-10, 24-CGP-10, 24-CEA-10, 24-CEP-10 SteamCraft 10 Service Manual, Chapter 2 Page 13

Figure 2-2- SteamCrafi 10 Dimensions and Clearances

Model 24-CGP-10 (Sheet 2 of 4)

Cleveland Range, Inc. Printed 3/93

Page 14 Chapter 2, SteamCraft 10 Service Manual Models 24-CGA-10, 24-CGP-10, 24-CEA-10, 24-CEP-10

Figure 2-2- SteamCraft 10 Dimensions and Clearances

Model 24-CEA-10 (Sheet 3 of 4)

Printed 3/93 Cleveland Range, Inc.

Models 24-CGA-10, 24-CGP-10, 24-CEA-10, 24-CEP-10 SteamCraft 10 Service Manual, Chapter 2 Page 15

Figure 2-2. SteamCraft 10 Dimensions and Clearances

Model 24-CEP-10 (Sheet 4 of 4)

Cleveland Range, Inc. Printed 3/93

Page 16 Chapter 2, SteamCraft 10 Service Manual Models 24-CGA-10, 24-CGP-10, 24-CEA-10, 24-CEP-10

Softened, Treated, or Filtered Water

Do not use softened or chlorinated water in the SteamCraft 10 steam generator- If the water supply is treated or softened either by the water company or on the premises, it may contain chlorine or various salts. These additives are damaging to the SteamCraft 10 steam generator. Salts used to soften water cause rapid scale buildup, and increased corrosion.

Some water treatment plants kill bacteria in the water by adding chlorine. Chlorinated water is actually dilute hydrochloric acid. It is very damaging to the SteamCraft 10. When heated in the steam generator, chlorinated water rapidly dissolves generator walls and heater elements. In extreme cases, poisonous and highly corrosive chlorine gas is released in the steam generator.

Installing a high volume water filtering system such as the SteamerGard removes most of the salts used for water softening. Contact a local water treatment specialist or the local water company for assistance with chlorinated water.

Water Supply System

Select a water supply system that fulfills the requirements listed in Table 2-2. The supply must provide a minimum dynamic pressure of 35 psi (2.4 kg/cm2) and a maximum static pressure of 60 psi (4.1 kg/cm2). Refer to page 24 for detailed pressure and fitting requirements, and recommended plumbing layouts.

• Always connect a cold water supply to the SteamCraft 10 water

supply lines. DO NOT USE HOT WATER. The SteamCraft 10 will not function properly or within design safety limits if hot or warm water is supplied to the condenser water connection.

• If analysis shows that the supply water is within the required limits, a

single line water system can be installed. A single water line system is illustrated in Figure 2-10 on page 25,

• If analysis shows that the supply water is NOT within the required

limits, install a SteamerGard water treatment system. Figure 2-11 on page 25 illustrates a treated water supply arrangement.

• If analysis shows that the supply water is NOT within the required

limits, and it is NOT possible to install a SteamerGard water

treatment system; plan on increasing the frequency of maintenance, cleaning, and descaling beyond that recomme nded in the maintenance schedule (Chapter 4).

Models 24-CGA-10, 24-CGP-10, 24-CEA-10, 24-CEP-10 SteamCraft 10 Service Manual, Chapter 2

Selecting The Operating Location

For safe and efficient operation, observe the following criteria when selecting an operating location for the Steam Craft 10 Steamer.

1. Do not install these units in areas where combustibles are stored or may accumulate. The surrounding area must be clear of combustibles, including the space under the unit.

2. Do not locate the SteamCraft 10 directly over a floor drain used for:

draining hot condensate from this or any other appliance. The drain must be outside the body of the unit.

3. A proper air supply for combustion and ventilation air is critical for safe, efficient operation of SteamCraft 10 Steamers. The area around the steamer

must have adequate ventilation for gas-fired appliances.

4. The back panel and both side panels have vents for combustion and ventilation air. Do not block these air vents. Do not install any heat producing equipment near the air vents of the unit.

WARNING

All clearance requirements above, below, and around the unit are the same for non-combustible locations as for combustible locations.

5. The dimension drawings (Figure 2-2) specify all dimensions and clear ances required for proper operation and service of each SteamCraft 10 Steamer covered in this manual. Maintain at least a 3-inch operating clearance at the sides of the unit, and at least a 3-inch clearance at the back. Do not store articles on top of the unit.

6. The lower from and right side panels of the unit are the service access panels. Select an operating location that allows a minimum 12-inch clearance for service access through these panels.

7. Installation of an exhaust hood over the unit may be required by local, state, and/or national codes. Refer for Exhaust Hood Requirements - All Models on page 10. If the SteamCraft 10 cannot be installed under an existing hood, check the exhaust hood venting requirements for a suitable hood over the operating location.

8. The location selected must be capable of supporting the operational weight of the SteamCraft 10, including the weight of water and food. The SreamCraft 10 Steamer operating weights are listed on the dimension drawings.

9. The Steam Craft 10 must be level both front for back and side to side. Select an operating surface that is level enough for allow leveling the unit without extreme adjustment of the legs.

Page 18 Chapter 2, SteamCraft 10 Service Manual Models 24-CGA-10, 24-CGP-10, 24-CEA-10, 24-CEP-10

INSTALLATION INSTRUCTIONS

After selecting the operating location, the SteamCraft 10 can be unpacked, positioned, and installed. After Final Setup and Checkout, the SteamCraft 10 will provide years of reliable operation.

CAUTION

Malfunctions and equipment damage may result from improper mounting. Malfunctions and/or damage resulting from improper mounting are not covered by the equipment warranty.

The SteamCraft 10 MUST BE LEVEL BOTH FRONT TO BACK AND SIDE TO SIDE in all mounting arrangements.

Equipment damage will result from shifting the SteamCraft 10 more than 10° out of level while power is turned on. The unit must be level front to back and side to side.

U npacking and Inspection

1. Before unpacking the shipping carton, visually inspect it for damage.

• If the shipping carton appears damaged, do not open the carton. Refer to the

Shipping Damage Instructions on page 19.

• If the shipping carton is undamaged, proceed with step 2.

2. Slit the four corners of the carton and peel carton sides away from the SteamCraft

10. The slide racks are shipped in separate packing inside the cooking compartment. Be careful not to damage or throw these racks away.

3. Remove the slide rack carton from the cooking compartment. The pack age contains four slide racks (two for each cooking compartment) as illustrated in Figure 2-3.

4. Open both cooking compartment doors. Several pre-assembled parts can be seen inside each cooking compartment. Refer to Figure 2-4, and verify that the Drain

Screen, Steam Nozzles, and Slide Rack Mounting Pins are installed.

5. Inspect the SteamCraft 10 and parts for damage or loss.

• If you discover or suspect shipping damage or loss, refer to the Shi pping

Damage Instructions.

• If all items are accounted for and undamaged, place the packaged slide racks

inside the cooking compartments, and proceed to Position and Level the SteamCraft 10.

Figure 2-3. Slide Racks

Models 24-CGA-10, 24-CGP-10, 24-CEA-10, 24-CEP-10 SteamCraft 10 Service Manual, Chapter 2 Page 19

Shipping Damage Instructions

If shipping damage to the SteamCraft 10 is discovered or suspected, observe the following guidelines in preparing a shippi ng damage claim.

• Write down a description of the damage or the reason for suspecting damage as soon as it is discovered. This will help in filling out the claim forms later.

• As soon as damage is discovered or suspected, notify the carrier who delivered the shipment.

• Arrange for a carrier representative to examine the damage.

• Fill out all appropriate claims forms and have the examining carrier sign and date each form.

Figure 2-4. Pre-assembled Pans

Position and Level The SteamCraft 10

NOTE: If ther e is not enough room to work on the drain, electrical. and water lines

with the SteamCraft 10 in place, skip this procedure until they are completed. While preparing the utility lines, protect the SteamCraft 10 as described on page 10. After the lines are prepared, position and level the SteamCraft 10, then connect the utility lines.

Adjustable Leveling Legs

The supporting legs of the SteamCraft 10 Steamer are 6-inches long when the adjustable feet are fully retracted. This provides the minimum 6-inch space below the unit required by NSF sanitary standards. The adjustable feet can be extended approximately 2 inches to provide a means of leveling the SteamCraft 10.

Positioning and Leveling

1. Check that all Unpacking and Inspection tasks are complete.

2. Thoroughly clean the floor area that will support the SteamCraft 10.

3. Using a level, determine and mark the highest corner of the floor area that will support the leveling legs.

WARNING

INJURY AND EQUIPMENT DAMAGE could result from improper lifting. Refer to the appropriate di mension drawing and check the weight of the unit being installed. Use enough workers with experience lifting heavy equipment to place the SteamCraft 10 on the supporting surface.

Figure

2-5.

Slide Rack Installation

nstall and Connect the Free Air

Page 20 Chapter 2, SteamCraft 10 Service Manual Models 24-CGA-10, 24-CGP-10, 24-CEA-10, 24-CEP-10

4. Move the SteamCraft 10 into position.

5. Check the adjusting foot of the leg in the highest corner (marked in step 3). The foot should be fully retracted and provide a 6-inch clearance under the unit.

6. Using a level, adjust the other three legs until the Steam Craft 10 is level both front to back and side to side.

7. After the Steam Craft 10 has been positioned and leveled, install the slide racks as described below.

Install Slide Racks

1. Refer to Figure 2-5. There are two slide racks for each cooking compartment. Each rack has four loops: two at the top and two at the bottom. Hold the slide rack so the ends of the hanger loops point down, as shown in the figure.

2. Slide one rack into the compartment with loops toward the compartment wall and mounting pins.

3. Hook the loops over the top and bottom pins.

4. Repeat steps 1 through 3 for each of the other racks.

Vented Drain Lines

The drain outlet must be free air vented to equalize the pressure in the Steam Craft 10 Steamer with the atmosphere. Generating steam causes pressure to increase in the unit; cold water flow into the condenser creates a vacuum (low pressure) in the condenser. Without a free air vent, either high or low pressure in the compartment will cause malfunction or damage.

• Pressure build up in the steamer will cause steam and hot water leakage around the door.

• A vacuum will implode the steamer and cause permanent physical damage.

Refer to Figure 2-6, and the dimension drawings (Figure 2-2). The drain outlet (D) discharges exhaust steam and hot condensate from the steamer. The drain exhaust vent and a 1-inch minim um clearance between the drain opening and floor drain provide the SteamCraft 10 Steamer with free air venting.

Furnishing and installing the drain lines and fittings is the responsibility of the owner and/or installer. Figure 2-6 illustrates a drain layout recommended by Cleveland Range. Observe the following instructions to determine the pipe size, the number of fittings required, and the layout of the drain line.

Figure

2-6.

Drain Layout and Connections

Models 24-CGA-10, 24-CGP-10, 24-CEA-10, 24-CEP-10 Page 21 SteamCraft 10 Service Manual, Chapter 2

WARNING

DEATH, INJURY, AND EQUIPMENT DAMAGE could result from improper installation of the drain outlet lines.

Improper installation of these lines could void the SteamCraft 10 Steamer warranty. The following restrictions are critical to the safety of personnel and equipment, and must not be violated under any circumstances.

Do not connect the drain line into PVC pipe, or any other drain material that cannot sustain 180° F.

Do not connect drains from any other equipment to the SteamCraft 10 Steamer drain line.

Do not connect the drain outlet extension line directly to a floor drain or sewer line.

1. The drain lines must be installed in compliance with local, state, and national utility, construction and sanitation codes; the most prominent of which are listed in the Installation Policies section below

2. The floor drain receiving the hot condensate from the Steam Craft 10 must not be located under the body of the unit. Steam rising from the drain up into the unit body will adversely affect operation, cooling air ventilation. and may cause corrosion on some of the electrical contacts. Improper location of this drain will seriously reduce warranty coverage.

3. The total length of pipe and number of bend fittings required to reach the open drain determines the pipe size used to extend the drain line to an open drain.

• If the drain outlet extension requires six feet or less of pipe, and no more than

two elbows are required, use 1.5-inch pipe and fittings.

• If the drain outlet extension requires six to twelve feet of pipe, or requires three

or more elbows, use 2-inch pipe and fittings.

4. The drain line must have a gravity flow from the Steam Craft 10 Steamer drain outlet to the floor drain Do not install a trap in the drain line.

5. Free air venting requires a minimum of one inch clearance between the end of the drain line and the top of the floor drain.

6. Do not connect the steamer drain to drains or plumbing of any other equipment. If drains of two or more units are connected together.

• Low pressure can develop, causing an implosion and physical collapse of the

steamer.

• Drainage from another unit can flow back into a cooking compartment of the

steamer.

Figure 2-7. Access Panel Removal

Figure 2

Exhaust Hood Ventilation All

SteamCraft 10's with gas

fired steam generators have a

n exhaust hood (H.

Figure 2

Furnishing and installing the electrical power lines, switches, fuse boxes, connectors

Page 22 Chapter 2, SteamCraft 10 Service Manual Models 24-CGA-10, 24-CGP-10, 24-CEA-10, 24-CEP-10

Models

7. Refer to to the 1.5-inch drain pipe connection (D) inside the Steam Craft 10.

8. When assembling the drain pipes and fittings, apply a hardening type pipe sealant to the threads, and thread them together FINGER TIGHT ONLY. DO NOT USE

A WRENCH.

2) which covers the Gas Flue port (G) on top of the unit. In addition to the required

venting of gas-fired equipment, some state and local codes require the venting of steam generating equipment.

1. The SteamCraft 10 gas flue (G ) must be vented in compliance with all local, state, and national codes for venting gas-fired appliances. Steam venting must comply with the state and local codes where applicable.

2. The exhaust hood must be sized for the cumulative ventilation requirem ents of all gas -fired appliances in the area, as well as to the SteamCraft 10.

3. Do not connect the gas flue directly to a forced draft exhaust system or canopy. Excess draft through the flue reduces the oven's efficiency and may affect cooking times.

4. If an existing exhaust hood cannot be used, a new one should be con-structed over the SteamCraft 10. The Dimensions and Clearances Draw -ing (Figure 2-2)

contains the dimensions, gas flow, and BTU per hour data required to calculate the minimum required hood dimensions and minimum ventilation capacity (c.f.m).

. Remove the right side access panel and connect the drain line

Install Electric Power Lines

and accessories is the responsibility of the owner and/or installer. Figure 2-8 illustrates an electrical layout recommended by Cleveland Range. When installing the

electrical power lines and accessories, observe the following instructions.

1. In the United States, install the electrical power lines in accordance with local codes and/or the National Electric Code, ANSI/NFPA No. 70-1990 (USA).

2. In Canada, install the electrical power lines in accordance with local codes and/or the Canadian Electrical Code, CSA Standard C22.1 (Canada).

3. Install the proper size, disconnect switch, circui t breaker or fuses, and wire and conduit to conform to all local codes and the national codes cited above. See

Table 2-3 for wire requirements.

4. Install a separate disconnect switch and fuses or breakers sized to meet the line amps required by the Steam Craft 10 (see Table 2-3). The fuses or breakers may be an integral part of the disconnect switch or in a separate fuse box. Install the disconnect switch for easy access as needed for daily startup and shutdown.

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