Cleveland steamcraft 21-CET-8 Service Manual
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Cleveland steamcraft 21-CET-8 Service Manual

Counter type convection steamer
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See also: Operator's Manual
Cleveland Range
SteamCraft
3.1
COUNTER TYPE
CONVECTION STEAMER
SERVICE
MANUAL
Model 21-CET-8
Printed 12/90
®
Cts-01

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Summary of Contents for Cleveland steamcraft 21-CET-8

  • Page 1 Cleveland Range SteamCraft ® COUNTER TYPE CONVECTION STEAMER SERVICE MANUAL Model 21-CET-8 Printed 12/90 Cts-01...
  • Page 2 BROCHURE OR OTHER MATERIALS. Cleveland Range's liability on any claim of any kind. including negligence, with respect to the goods or services hereunder: shall in no case exceed the price of the goods or services, or pan thereof, which gives rise to the claim. IN NO EVENT SHALL CLEVELAND RANGE BE LIABLE FOR SPECIAL.
  • Page 3 SteamCraft 3.1 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.

  • Page 4: Table Of Contents

    Model 21-CET-8 Service Manual Page I TABLE OF CONTENTS CHAPTER PAGE CHAPTER 1. PRODUCT IDENTIFICATION……………………………………………………………….1 MODEL NUMBER…………………………………………………………………………………….1 SERIAL NUMBER…………………………………………………………………………………….1 PRODUCT INFORMATION PLATE…………………………………………………………………1 CHAPTER 2. INSTALLATION INSTRUCTIONS……………………………………………………………3 INTRODUCTION………………………………………………………………………………………3 INSTALLATION POLICIES……………………………………………………………………………3 INSTALLATION OVERVIEW…………………………………………………………………………4 PREPARATION FOR INSTALLATION………………………………………………………………6 Electric Power Requirements…………………………………………………………………6 Water Quality Requirements…………………………………………………………………6 Water Supply System…………………………………………………………………7 Selecting The Operating Location……………………………………………………………7 INSTALLATION INSTRUCTIONS….
  • Page 5 Page ii Model 21-CET-8 Service Manual Table of Contents (continued) CHAPTER PAGE CHAPTER 3. OPERATION INTRODUCTION OPERATIONAL SAFETY CONTROL PANELS KEY PAD CONTROL PANEL SUMMARY COOKING OPERATIONS- KEYPAD CONTROL PANEL Manual and Timed Modes Main Power Switch Power ON (Automatic Fill) Inspect the Cooking Compartment Preheating the SteamCraft 3.1 Operating Procedure - Timed Mode...
  • Page 6 Model 21-CET-8 Service Manual Page iii Table of Contents (continued) CHAPTER PAGE CHAPTER 4. PREVENTATIVE MAINTENANCE AND TROUBLESHOOTING…………………………………….55 INTRODUCTION……………………………………………………………………………………………….55 MAINTENANCE RECORDS…………………………………………………………………………………..55 DAILY MAINENTANCE………………………………………………………………………………………55 Clean SteamCraft 3.1…………………………………………………………………………………..55 WEEKLY MAINTENANCE……………………………………………………………………………………55 MONTHLY MAINTENANCE…………………………………………………………………………………56 YEARLY MAINTENANCE……………………………………………………………………………………59 TROUBLESHOOTING NOTES………………………………………………………………………………..61 CHAPTER 5. ELECTRICAL SYSTEM………………………………………………………………………………….63 INTRODUCTION……………………………………………………………………………………………….63 Figures And Illustrations……………………………………………………………………………….63 STEAMCRAFT 3.1 ELECTRICAL CIRCUITS………………………………………………………………..63 High Voltage Circuit……………………………………………………………………………………63 120 VAC Circuit……………………………………………………………………………………….63...
  • Page 7 Page iv Model 21-CET-8 Service Manual Table of Contents (continued) CHAPTER PAGE CHAPTER 5. ELECTRICAL SYSTEM (continued) Mechanical Timer (3, Figure 6-6)………………………………………………………………75 3-Second Timer and Buzzer (Mechanical Timer Units Only)(11, 15, Figure 6-6)…………….75 High Temperature Limit Switch (1, Figure 6-9)…………………………………………………………75 Float Assembly (Figure 6-10)……………………………………………………………………………75 COMPONENT TESTING GUIDE INTRODUCTION…………………………………………………………..77 Nominal Voltage…………………………………………………………………………………………77...
  • Page 8 Model 21 -CET-8 Service Manual Page v Table of Contents (continued) CHAPTER PAGE CHAPTER 6. ILLUSTRATED PARTS LISTS……………………………………………………………………………101 INTRODUCTION………………………………………………………………………………………………..101 Parts Differences Among SteamCraft 3.1 Steamers…………………………………………………….101 Electrical Schematics and Wiring Diagrams…………………………………………………………….101 Printed 12/90...

  • Page 10: Chapter 1. Product Identification

    Model 21-CET-6 Service Manual Page 1 CHAPTER 1. PRODUCT IDENTIFICATION Cleveland Range, Inc. assigns two product identification numbers to each SteamCraft 3.1: a model number and a serial number. The model number identifies the product characteristics. The serial number identifies the...

  • Page 11: Chapter 2. Installation Instructions

    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. • Responsibility for electric power requirements as described in Preparation for Installation, Electric Power Requirements.

  • Page 12: Installation Overview

    Page 4 Model 21 -CET-8 Service Manual • 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. •...
  • Page 13 Model 21-CET-8 Service Manual Page 5 INSTALLATION DIAGRAM NOTES 1. The Product Identification Plate located on the 6. A manual shut off valve must be installed back panel specifies the electric power between the main water supply and the steamer requirements.

  • Page 14: Preparation For Installation

    Water Quality Requirements CAUTION Using water not within the limits specified in this manual could void or adversely affect Cleveland Range's warranty coverage of the SteamCraft 3.1. As with any steam generating equipment, poor water quality degrades SteamCraft 3.1 performance. If feed water is low in Total Dissolved Solids (TDS) and free of paniculate matter, the steam generator, heating element, and valves of the SteamCraft 3.1 will give years of...

  • Page 15: Water Supply System

    Model 21 -CET-8 Service Manual Page 7 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 3.1.
  • Page 16 Page 8 Model 21 -CET-8 Service Manual 2. The SteamCraft 3.1 is typically installed with four adjustable mounting legs, as shown in the dimension drawing. If clearance above the unit is limited it can be installed without legs, surface mounted directly to the counter top. 3.

  • Page 17: Installation Instructions

    Model 21-CET-8 Service Manual Page 9 INSTALLATION INSTRUCTIONS After selecting the SteamCraft 3.1 operating location, the steamer can be unpacked, positioned, and installed. After Final Setup and Checkout, the SteamCraft 3.1 will provide years of reliable operation. Unpacking and Inspection 1.

  • Page 18: Shipping Damage Instructions

    To compensate for height limitations, the steamer can be surface mounted directly to the counter top. If a suitable counter is not available, the unit can be secured to a Cleveland Range ES-2130 Equipment Stand. The following instructions cover each of these mounting methods.

  • Page 19: Surface Mounting And Leveling

    Model 21-CET-8 Service Manual Page 11 WARNING INJURY AND EQUIPMENT DAMAGE could result from improper lifting. The SteamCraft 3.1 weighs approximately 135 pounds. Use enough workers with experience lifting heavy equipment to place the SteamCraft 3.1 on the counter. 2. Be sure electric power is turned off at the main power switch. Place the SteamCraft 3.1 on its left side.

  • Page 20: Stand Mounting And Leveling

    14, and install the slide racks. Stand Mounting and Leveling The Cleveland Range ES-2130 Equipment Stand provides a stable, level mounting base for the SteamCraft 3.1. In addition, the stand has a slide-away work surface, and storage for five cafeteria trays. When mounting a SteamCraft 3.1 on the ES-2130, first install and level the stand, then surface...
  • Page 21 Model 21-CET-8 Service Manual Page 13 Equipment Stand Installation 1. The equipment stand is shipped assembled except for the slide racks. The racks and the steamer mounting hardware are shipped in separate packing within the equipment stand packing. Refer to the Unpacking and Inspection instructions on page 9, and unpack the equipment stand.

  • Page 22: Install Slide Racks

    Furnishing and installing the drain line is the responsibility of the owner and/or installer. Figure 2-13 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.
  • Page 23 Model 21-CET-8 Service Manual Page 15 NOTE: The drain line must be free air vented, have gravity flow from steamer, and terminate outside the perimeter of the unit The one inch minimum clearance between the drain opening and floor drain provides the SteamCraft 3.1 with free air venting. The drain outlet discharges exhaust steam and hot condensate from the steamer.

  • Page 24: Connect Drain Line

    Furnishing and installing the electrical power lines, switches, fuse boxes, connectors and accessories is the responsibility of the owner and/or installer. Figure 2-15 illustrates an electrical layout recommended by Cleveland Range. When installing the electrical power lines and accessories, observe the following instructions.

  • Page 25: Connect Electrical Line

    Model 21-CET-8 Service Manual Page 17 5. There should be a sufficient length of flexible conduit between the SteamCraft 3.1 connector and the wall so the unit can be moved for service. 6. Each steamer must be electrically grounded by the installer. 7.

  • Page 26: Install Water Supply Lines

    Furnishing and plumbing the water supply lines is the responsibility of the owner and/or installer. This section illustrates plumbing layouts recommended by Cleveland Range. When installing water supply lines, observe the following instructions. 1. Always connect a cold water supply to the SteamCraft 3.l water supply lines.
  • Page 27 Page 19 a. When installing a water supply system without a SteamerGard, Cleveland Range recommends the plumbing layout illustrated in Figure 2-18. This is a single water line from the main cold water supply to the tee just outside the SteamCraft 3.1. The two separate lines from the tee to the steam generator and condenser/blowdown connections are comparitively short.

  • Page 28: Connect Water Supply Lines

    At the points indicated in the recommended plumbing layouts, install a 40-mesh water strainer of the type and construction illustrated in Figure 2-20, Cleveland Range part number 102383. Figure 2-20. Water Strainer Assembly 4. Construct all supply lines up to the point of installing the strainer(s) illustrated in the recommended plumbing layouts.

  • Page 29: General Connection Requirements

    Model 21-CET-8 Service Manual Page 21 General Connection Requirements 1- Apply pipe dope or teflon tape to any threaded connection. 2. Rush the water supply lines before connecting the strainer(s), and again before connecting the lines to the SteamCraft 3.1 connections. 3.

  • Page 30: Final Setup And Checkout

    Page 22 Model 21 -CET-8 Service Manual 3. Check all lines and connections for leakage, both inside and outside the steamer. 4. If Final Setup and Checkout will be performed next, leave the right side panel off; otherwise, replace the side panel and secure it to the unit with the two screws (Figure 2-16).
  • Page 31 Model 21 -CET-8 Service Manual Page 23 5. Set the control panel as follows: a. Press the OFF (bottom) end of the ON/OFF switch. b. Press the TIMED (top) end of the TIMED/MANUAL switch- c. The timer setting is not important while the ON/OFF switch is in the OFF position.

  • Page 32: Operating Tests - Key Pad Control Panel

    Page 24 Model 21 -CET-8 Service Manual b.Turn off electric power to the SteamCraft 3.1 at the main power switch. Install the right side access cover and secure it to the unit with the two screws (Figure 2-16). Operating Tests • Key Pad Control Panel This procedure is followed for SteamCraft 3.1's with key pad control panels (Figure 2-23).
  • Page 33 Model 21 -CET-6 Service Manual Page 25 5. When the TIMED/MANUAL switch is set to MANUAL, the steam generating cycle starts. Start timing upon pressing the MANUAL end of the TIMED/MANUAL switch. Check and time the following functions. • Immediately: The condenser solenoid clicks open and condenser flow starts.

  • Page 34: Operating Tests - Dial Timer Control Panel

    Page 26 Model 21 -CET-8 Service Manual c. If the float cylinder water level drops below the initial fill level, the water fill valve opens and fills the generator. When the float cylinder water level is above one inch, the heater coil turns on. A dull roaring sound indicates the beater is working and the unit is beginning to generate steam.
  • Page 35 Model 21 -CET-8 Service Manual Page 27 • The TIMED/MANUAL switch is in the TIMED (top) position. • The Timer is zeroed, dial pointing to the 0 mark. 3. If the Timer is not zeroed, turn the dial counter clockwise until it points to the 0 mark.
  • Page 36 Page 28 Model 21 -CET-6 Service Manual 8. With the TIMED/MANUAL switch set to TIMED, turn the dial of the timer to 10 minutes. 9. As soon as the dial is released, the steam generating cycle starts. This is the same sequence observed in steps 5 and 6, except: •...

  • Page 37: Chapter 3. Operation

    Model 21-CET-8 Service Manual Page 29 CHAPTER 3. OPERATION INTRODUCTION The SteamCraft 3.1 is as safe and easy to operate as a touch tone phone or a kitchen timer. To use the steamer safely and effectively, each operator must read and understand this chapter completely before starting operation. The owners and operators of the SteamCraft 3.1 should retain these instructions in an easily accessible location for future reference and training.

  • Page 38: Control Panels

    5. Before each use of the SteamCraft 3.1, inspect the drain and screen for blockage. Inspect the door gasket assembly, and slide racks for proper installation and cleanliness. 6. Allow only Cleveland Range authorized service representatives to service the SteamCraft 3.1. 7. Use only factory authorized repair parts. This will maintain Underwriters Laboratories (UL) and/or Canadian Standards Association (CSA) certification, and all approvals to protect warranty coverage.

  • Page 39: Key Pad Control Panel Summary

    Model 21-CET-8 Service Manual Page 31 KEY PAD CONTROL PANEL SUMMARY CAUTION Press switches with finger tips only. Do not use kitchen utensils or anything sharp to operate the switches. TIMER Display This four-digit display indicates the minutes and seconds remaining in the count down.

  • Page 40: Cooking Operations- Keypad Control Panel

    Page 32 Model 21 -CET-8 Service Manual COOKING OPERATIONS - KEY PAD CONTROL PANEL SteamCraft 3.1 cooking operations are simple and direct. Figure 3-3, to the right, shows the operations that can be performed during a four-hour shift. Each operation in the diagram is covered in a procedure in this chapter. The diagram, in conjunction with the control panel summary on page 31, contains enough information for rudimentary (quick start) operation of the SteamCraft 3.1.
  • Page 41 Model 21 -CET-8 Service Manual Page 33 Figure 3-3. SteamCraft 3.1 Cooking Operations Key Pad Control Panel Printed 12/90...

  • Page 42: Power On (Automatic Fill)

    Page 34 Model 21 -CET-8 Service Manual Power ON (Automatic Fill) When the SteamCraft 3.1 is turned on, it automatically fills the steam generator with water. Use this procedure at the beginning of a shift to prepare the steamer for operation without starting steam generation. When ready to start steam cooking, begin either the Timed or Manual Operating Procedure.

  • Page 43: Preheating The Steamcraft 3.1

    Model 21 -CET-8 Service Manual Page 35 Before every steaming operation, inspect the cooking compartment and remove any food scraps or debris from the racks, walls, and floor of the compartment. Pay particular attention to the drain and drain screen- 1.

  • Page 44: Operating Procedure - Timed Mode

    • For best cooking results, use shallow, 2-1/2 inch deep, perforated pans without covers (Cleveland Range model number PP-25). These give the best beat transfer and shortest cooking time. 4. Close the steamer door. Select the timed (automatic) mode by pressing the TIMED end of the TIMED/MANUAL rocker switch.
  • Page 45 Model 21 -CET-8 Service Manual Page 37 5. Check the control panel settings. At this point the settings should be: • The ON/OFF switch is in the ON (top) position. • The TIMED/MANUAL switch is in the TIMED (top) position. •...
  • Page 46 Page 38 Model 21-CET-8 Service Manual c. To stop or reset the timer, press and bold the START/STOP key. The cooking time display returns to the last time setting. • To restart the same time, press the START/STOP key. • To set a new time, press and hold the CLEAR key and set the new time.

  • Page 47: Operating Procedure - Manual Mode

    Model 21-CET-8 Service Manual Page 39 Operating Procedure - Manual Mode Manual mode allows the operator to personally control the cooking functions. The operator starts and stops the steaming operations, and sets the cooking time including time for steam generator, compartment and food beat-up time.

  • Page 48: Manual Cooking Procedure

    • For best cooking results, use shallow, 2-1/2 inch deep, perforated pans without covers (Cleveland Range model number PP-25). These give the best heat transfer and shortest cooking time. 4. Close the steamer door. Select the manual mode by pressing the MANUAL (bottom) end of the TIMED/MANUAL rocker switch.
  • Page 49 Model 21 -CET-8 Service Manual Page 41 6. To stop manual mode steaming, press the TIMED (top) end of the TIMED/MANUAL rocker switch. Press and hold the CLEAR key to zero the timer (00:00). The controls will now be set so: •...
  • Page 50 Page 42 Model 21 -CET-8 Service Manual Supply Water Quality on page 7. If the local water supply meets the minimum supply water quality standards, observe the following guidelines to establish proper blowdown scheduling, and maintain warranty coverage. • For units without a SteamerGard water treatment system, blowdown must be performed after every 4 hours of operation and at the end of each shift as specified in the Shut Down and Cleaning, procedure.
  • Page 51 Model 21-CET-8 Service Manual Page 43 thoroughly. Use a soft bristle brush to remove stubborn food particles. Do not use abrasive cleaning compounds or steel wool. Rinse inside of steamer compartment with clean water. WARNING Let rinse water drain through compartment drain opening. If water does not drain freely, drain lines must be cleaned before cooking again.
  • Page 52 Page 44 Model 21-CET-6 Service Manual DIAL TIMER CONTROL PANEL SUMMARY 1. TIMER This dial timer sets the operating time from 0 to 60 minutes. It operates as any conventional kitchen timer. Turn the dial clockwise until it points to the required number of minutes. When the dial is released, it begins to turn counterclockwise back to 0.
  • Page 53 Model 21-CET-8 Service Manual Page 45 Printed 12/90...
  • Page 54 Page 46 Model 21 -CET-8 Service Manual Manual and Timed Modes The SteamCraft 3.1 has two operating modes: manual and timed. The TIMED/MANUAL rocker switch selects the operating mode. Pressing the MANUAL end of the switch selects the manual operating mode. Pressing the TIMED end of the switch selects the timed operating mode.
  • Page 55 Model 21-CET-8 Service Manual Page 47 3. Press the ON (top) end of the ON/OFF switch to energize the SteamCraft3.1. The red indicator on the switch lights, a buzzer sounds for 3 seconds, and water fills the steam generator. When the generator is full, the SteamCraft 3.1 automatically stops water flow.

  • Page 56: Operating Procedure - Timed Mode

    Page 48 Model 21 -CET-8 Service Manual Preheat the SteamCraft 3.1 by the following procedure. 1. BEFORE PREHEATING, inspect and clean the compartment. After preheating, the compartment will be too hot to inspect and clean safely. Refer to Inspect the Cooking Compartment on page 47. 2.
  • Page 57 • For best cooking results, use shallow, 2-1/2 inch deep, perforated pans without covers (Cleveland Range model number PP-25)-These give the best heat transfer and shortest cooking time.
  • Page 58 Page 50 Model 21 -CET-8 Service Manual Operating Procedure - Manual Mode In manual mode the operator starts and stops the steaming operations. Use the manual cooking mode for • A continuous supply of steam. • Cooking times longer than the timer can measure (over 60 minutes). •...
  • Page 59 Model 21 -CET-8 Service Manual Page 51 • For best cooking results, use shallow, 2-1/2 inch deep, perforated pans without covers (Cleveland Range model number PP-2.5). These give the best heat transfer and shortest cooking time. 4. Close the steamer door and start manual mode steaming by pressing the MANUAL (bottom) end of the TIMED/MANUAL switch.
  • Page 60 Model 21 -CET-8 Service Manual • If another use is not planned for more than half an hour, leave the cooking compartment door slightly open to reduce internal pressure while the steam is condensing and cooling. • If the SteamCraft 3.1 is not being used again during this shift, perform the Power OFF and Shut Down and Cleaning Procedures.

  • Page 61: Shut Down And Cleanin G (At End Of Day Or Shift)

    Model 21-CET-8 Service Manual Page 53 Shut Down and Cleaning (At end of day or shift) This procedure must be performed at the end of each day or shift to maintain warranty coverage. 1. Refer to Power OFF (Automatic Blowdown), and turn off the Steam- Craft 3.1.
  • Page 62 Page 54 Model 21 -CET-8 Service Manual 5. Clean the door assembly, • Remove the door gasket assembly (see Figure 3-9). • Note the keyhole slots on the door and the retaining pins on the gasket assembly. Grasp the gasket assembly at the sides and lift up and towards you to remove the assembly.

  • Page 63: Chapter 4. Preventative Maintenance And Troubleshooting

    Model 21-CET-8 Service Manual Page 55 CHAPTER 4. PREVENTATIVE MAINTENANCE AND TROUBLESHOOTING INTRODUCTION Maintenance on the SteamCraft 3.1 must be performed on a regular basis to keep the unit running properly. Follow the maintenance instructions in this chapter and problems will be kept to a minimum As with any preventative maintenance schedule, the frequency of steamer maintenance may need to be increased, depending on equipment usage and water quality.

  • Page 64: Monthly Maintenance

    Steam generator should be descaled at least once a month, depending on scale buildup. If you have serious steam generator scale buildup, install a water treatment system for the steamer. Cleveland Range, Inc. recommends use of the descaling kit, part number 104394, which consists of liquid phosphoric add.
  • Page 65 Model 21-CET-6 Service Manual Page 57 MONTHLY MAINTENANCE (continued) WARNING The liquid phosphoric acid in descaling kit 104394 can be harmful if not handled properly. Follow these basic safety rules for handling and using acid. Wear protective clothing when mixing or applying chemical cleaners.
  • Page 66 Page 58 Model-21 CET-8 Service Manual WARNING DEATH, BURNS, OR ELECTRIC SHOCK can occur by touching electrical components and wires inside the access cover when the main power switch is in the on position. Use extreme caution when performing this procedure. 8.

  • Page 67: Yearly Maintenance

    Model 21 -CET-6 Page 59 ServiceManual 21. BIowdown the steam generator by pressing the POWER switch to OFF. 22. After the steam generator has drained, flush it once more by pressing the POWER switch ON, waiting for the steam generator to fill (about 3-4 minutes), and then pressing the POWER switch to OFF.
  • Page 68 Page 60 Model-21 CET-8 Service Manual OPERATOR'S TROUBLESHOOTING GUIDE This troubleshooting guide includes a list of symptoms checked, with the least costly and easiest to repair listed that may be encountered during routine operation and first. The third column also refers to notes that are maintenance.

  • Page 69: Troubleshooting Notes

    2. Proper installation of the SteamCraft 3.1 is the responsibility of the owner or installer. Refer to Cleveland Range, Inc. warranty on the inside front cover. 3. Repairs to external plumbing should be done by a Licensed Plumber.

  • Page 70: Chapter 5. Electrical System

    This chapter is exclusively for Cleveland Range authorized service representatives. These representatives should be experienced in the service, repair and maintenance o f food service equipment in general, and with Cleveland Range equipment specifically. The service representative must thoroughly understand Chapters 1 through 4 of this manual before applying any of the information or instructions in this chapter.

  • Page 71: Timer Circuits

    Page 64 Model 21 -CET-8 Service Manual Timer Circuits SteamCraft 3.1's come with cither of two types of timer control circuits, electronic key pad or mechanical dial. • In units with the electronic key pad timer, a 24 VAC transformer supplies control power to the timer.
  • Page 72 Model 21 -CET-8 Service Manual Page 65 Figure 5-1. Block Diagram • Key Pad Control Panel Printed 12/90...
  • Page 73 Page 66 Model 21 -CET-8 Service Manual Figure 5-2. Block Diagram - Dial Timer Control Panel Click Here for Next Page Printed 12/90...

  • Page 74: Timed Mode Circuit Operation

    Model 21 -CET-8 Service Manual Page 67 3. Provides power to relay K1. Contacts of relay K1 close to energize the drain solenoid and open the drain valve. Another set of relay K1 contacts close to supply power to the fill solenoid valve through the high level switch of the float.

  • Page 75: Electronic Key Pad Timer Units

    Page 68 Model 21 -CET-8 Service Manual Electronic Key Pad Timer Units Use of the Key Pad Timer is explained in Chapter 3. Once a steaming time is set, and START/STOP is pressed, the timed cooking cycle starts. 1. Contacts in the control panel close to energize the condenser solenoid and heater contactor.
  • Page 76 Model 21 -CET-8 Service Manual Page 69 Figure 5-3. Water Flow Comparison Switching the ON/OFF switch to OFF removes power from most of the 120 VAC circuit components, and activates the 3-minute timer. The following circuit operations occur. 1. The transformer and high voltage circuits on the line side of the heater contactor remain energized.

  • Page 77: Electrical Circuit Components

    The Chapter 6 figure and item number is included for each component described in this section. When servicing, repairing, or replacing any component, use only Cleveland Range authorized repair parts and procedures. Check that the repair part has the correct part number and is compatible with the power supply rating on the SteamCraft 3.1 Product Identification Plate (Chapter 1).

  • Page 78: Dryer Element (7, Figure 6-8)

    Page 71 Model 21-CET-8 Service Manual The heater coils, connected in a delta configuration, provide 8-kW heating power. Each heater coil supplies one third of this power (2.67 kW). Table 5-1 lists electrical characteristics of elements supplied for various voltages. Table 5-1.

  • Page 79: Timed/Manual Switch (11, Figure 6-5)

    Page 72 Model 21 -CET.8 Service Manual Setting the ON/OFF switch to ON supplies power to relay K1 and power to one side of the: - heater contactor - heater condenser - fill solenoid - drain solenoid - rinse solenoid These components can be activated by control components: - relay K1 - TIMED/MANUAL switch...

  • Page 80: 3-Minute Timer (14, Figure 6-5)

    Model 21 -CET-8 Service Manual Page 73 During shutdown, the 3-minute timer controls the fill and rinse solenoids. Setting 3-Minute Timer the ON/OFF switch to OFF starts the 3-minute timer and energizes timer terminals (14, Figure 6-5) 2-3. The timer contacts dose, opening the fill valve for steam generator blowdown and the rinse valve to flush the float cylinder.

  • Page 81: Condenser Solenoid Valve (1, Figure 6-11)

    Page 74 Model 21 -CET-8 Service Manual Condenser Solenoid Valve (1, Figure 6-11) The condenser solenoid valve controls cold water flow to the condenser tee at the bottom of the unit. The valve injects cold water into the condenser to cool the vapor and fluid draining from the steamer.

  • Page 82: Compartment Thermal Switch (Electronic Key Pad Units Only)(17, Figure 6-5)

    Model 21-CET-8 Service Manual Page 75 • Pressing the START/STOP key halts the buzzer and resets the timer circuits and display to the previously selected time. • The CLEAR key resets the timer circuits to 00:00. Compartment Thermal Switch (electronic key pad units only) (17, Figure 6-5) The compartment thermal switch delays timer countdown until compartment temperature is above 190°F.
  • Page 83 Page 76 Model 21 -CET-8 Service Manual Refer to Figure 5-8. The float switch assembly has an outer float which slides along an inner shaft. The float chambers of the outer float each contain a small magnet. The inner shaft houses two magnetic switches. As the floats rise and fall with the water level, the magnets cause the switches to open and dose.

  • Page 84: Component Testing Guide Introduction

    • Fundamental Component Testing • Component Test Procedures If components must be replaced, use only Cleveland Range authorized replacement parts to maintain complete warranty coverage. Nominal Voltage Throughout the testing guide and instructions, the text uses 230 VAC as the typical or nominal voltage.

  • Page 85: Fuses

    Page 78 Model 21 -CET-8 Service Manual Fuses If a fuse is blown and there is no other apparent damage, replace the fuse and try to start the unit. This blown fuse may be the only damage. Normal current flow through a fuse over time can weaken the fuse, eventually causing it to blow.

  • Page 86: Timers

    Model 21-CET-8 Service Manual Page 79 Low voltage, below about 90 VAC, will cause the solenoid to hum loudly or chatter. Check transformer secondary for 120 VAC nominal. Check for loose connections. The resistance of a good solenoid coil measures about 600 ohms. The SteamCraft 3.1 solenoid valves operate at a maximum pressure of 60 psi.

  • Page 87: Heater Element

    Page 80 Model 21-CET-8 Service Manual Heater Element In this text, heater element refers to the complete assembly. The heater element contains three coils. Wire markings identify each coil as follows: • Coil 1 connects to leads 1L1 and 1L2 •...

  • Page 88: Component Test Procedures

    Model 21-CET-8 Service Manual Page 81 COMPONENT TEST PROCEDURES The following procedures are detailed tests to determine whether or not particular SteamCraft 3.1 components are operable. Before starting the individual component procedures, refer to Chapter 2 and complete the Final Setup and Checkout Procedures.

  • Page 89: Transformer

    Page 82 Model 21-CET-8 Service Manual • If the readings are 230 VAC across one fuse and 0 VAC across the other fuse, the fuse with the 230 VAC reading is blown. The fuse with 0 VAC is good. Replace the blown fuse with a new 2 amp fuse, and proceed to step 6. 6.

  • Page 90: On/Off Switch

    Model 21-CET-8 Service Manual Page 83 ON/OFF Switch 1. Set the voltmeter to the 250 VAC scale. 2. Set the ON/OFF switch to the ON position. • If the red indicator lights, proceed to step 3. • If the red indicator does not light, proceed to step 4. 3.

  • Page 91: Fill Solenoid Valve

    Page 84 Model 21-CET-8 Service Manual • If the meter reads 0 VAC, the fault is not in relay K1. a. Test the ON/OFF switch. b. Check the tan wire from relay K1 to the TIMED/MANUAL switch. c. Check tan and white/black wires from relay K1 to the ON/OFF switch. 4.

  • Page 92: 3-Minute Timer

    Model 21-CET-8 Service Manual Page 85 • If the valve fills the generator to the high level and stops, the valve is operating properly. Reconnect the gray wire to the 3-minute timer terminal 2. Set the ON/OFF switch to the ON position. Test the float high level switch.

  • Page 93: Drain Solenoid Valve

    Page 86 Model 21-CET-8 Service Manual Drain Solenoid Valve 1. Set the voltmeter to the 250 VAC scale. 2. Set the ON/OFF switch to the OFF position. 3. Set the TIMED/MANUAL switch to the TIMED position. 4. Check the drain solenoid ground wire (green) for continuity and secure connections.

  • Page 94: Rinse Solenoid Valve

    Model 21 -CET-8 Service Manual Page 87 • If the meter reads 0 VAC across the drain solenoid, the fault is not in the solenoid valve. Reconnect the black wire to the high temperature limit switch. b. Reconnect the brown wire to the condenser solenoid. c.

  • Page 95: Condenser Solenoid Valve

    Page 88 Model 21-CET-8 Service Manual Condenser Solenoid Valve 1. Set the voltmeter to the 250 VAC scale. 2. Set the ON/OFF switch to the ON position. 3. Set the TIMED/MANUAL switch to the MANUAL position. 4. Check for outflow at the dram opening. •...

  • Page 96: Timed/Manual Switch

    Model 21 -CET-8 Service Manual Page 89 Test the float low level switch b. Test the high temperature limit switch TIMED/MANUAL Switch 1. Set the voltmeter to the 250 VAC scale. 2. Set the ON/OFF switch to the ON position. 3.

  • Page 97: High Temperature Limit Switch

    Page 90 Model 21-CET-8 Service Manual High Temperature Limit Switch 1. Set the voltmeter to the 250 VAC scale. 2. Set the ON/OFF switch to the ON position. 3. Before proceeding to step 4, wait until water fills the float cylinder to normal operating level.
  • Page 98 Model 21 -CET-8 Service Manual Page 91 circuits. Note any operating malfunctions, and continue this procedure with step 3. 3. If the timer display is blank, the timer is either not receiving power from the 24 VAC transformer, or the timer is faulty. The timer may not be receiving 24 VAC power from the transformer due to faulty wiring.

  • Page 99: Compartment Thermal Switch (Key Pad Timer Units Only)

    Page 92 Model 21-CET-8 Service Manual • If the wiring, connections, and TIMED/MANUAL switch are all in good condition, replace the timer. 7. If the SteamCraft 3.1 continues to generate steam after Timer counts down to 00:00, replace the timer. Compartment Thermal Switch (key pad timer units only) 1.

  • Page 100: Mechanical Timer

    Model 21 -CET-8 Service Manual Page 93 • If the meter reads high or infinite resistance after 10 minutes, carefully open compartment door and check that the unit is generating steam - a. If the unit is generating steam, and the cooking compartment is hot, replace the compartment thermal switch.

  • Page 101: Heater Contactor

    Page 94 Model 21 -CET-8 Service Manual Heater Contactor 1. Set the voltmeter to the 250 VAC scale. 2. Set the ON/OFF switch to the ON position. 3. Set the TIMED/MANUAL switch to the MANUAL position. Operate the SteamCraft 3.1 for about 10 minutes, or u ntil it is steaming continuously, and the water in the float cylinder is at operating level.

  • Page 102: Heater And Dryer Elements

    Page 95 Model 21-CET-8 Service Manual Heater and Dryer Elements 1. Set the voltmeter to the 500 VAC scale. 2. Set the ON/OFF switch to the ON position. 3. Set the TIMED/MANUAL switch to the MANUAL position. Operate the SteamCraft 3.1 for about 10 minutes, or until it is steaming continuously, and the water in the float cylinder is at operating level.

  • Page 103: Float Assembly

    Page 96 Model 21 -CET-8 Service Manual a. Set megohm meter (megger) at 500 or 1000 volts. If a megger is not available, zero adjust an ohmmeter on the highest scale. b. Check that the water in the float cylinder is at operating level. c.
  • Page 104 Model 21-CET-8 Service Manual Page 97 Printed 12/90...
  • Page 105 Page 98 Model 21 -CET-8 Service Manual 6. Check for 120 VAC from the TIMED/MANUAL switch orange wire to the ON/OFF switch white/black wire connection. • If the meter does not read 120 VAC, the fault is not in the float assembly. Test the ON/OFF switch.

  • Page 106: 3-Second Timer And Buzzer (Mechanical Timer Units Only)

    Model 21-CET-8 Service Manual Page 99 • If the float assembly performs as described above, it is operating properly. End this procedure here. • If the upper float does not cycle with the water level, it is jammed or damaged. Clean or replace the float assembly. •...
  • Page 107 Page 100 Model 21 -CET-8 Service Manual a. Check the black wires from the 3-second timer to the buzzer for continuity and secure connections. Replace or repair faulty wiring and connections. b. If the wiring and connections are good, replace the 3-minute timer. Printed 12/90...

  • Page 108: Chapter 6. Illustrated Parts Lists

    When this is not possible, the parts differences are tracked and identified by steamer serial numbers. These differences are noted in the illustrated parts lists. Refer to Chapter 1 for an explanation of Cleveland Range serial number notation.
  • Page 109 Figure 6.1. Major Component Groups Printed 12/90...
  • Page 110 Page 104 21 -CET-8 Service Manual Figure 6-2. Access Panel and External Components Printed 12/90...
  • Page 111 21 -CET-8 Service Manual Page 105 Figure 6-2. Access Panel And External Components Item Part No. Description Quantity 101770 Label, Model No./Serial No. 101831 Label, Clearance 101622 Label, Drain Specification 103893 Label, Plumbing Caution 100733 Label, Water Purification System Connection 14929 Label, Cold Water Connection Tag 104236...
  • Page 112 Page 106 21 -CET-8 Service Manual Figure 6-3. Steamer Compartment Group Printed 12/90...
  • Page 113 21 •CET-8 Service Manual Page 107 Figure 6-3. Steamer Compartment Group Item Part No. Description Quantity 69298 Drain Screen 14677 Nut, Acorn 41423 Rack, Slide 101305 Pin, Rack Mounting (Not replaceable) Printed 12/90...
  • Page 114 Figure 6-4. Compartment Door And Hinge Assemblies Printed 12/90...
  • Page 115 Figure 6-4. Compartment Door And Hinge Assemblies Item Part No. Description Quantity COMPARTMENT DOOR ASSEMBLIES 103537 Door, Outer Assembly 103527 Door, Compartment - Weldment (Outer) 104077 Pin, Hinge 104062 Ring, Snap S/S 103641 Bushing, Door Hinge 104457 Spring Bracket Assembly, Inner Door. Left Hand Door 104458 Spring Bracket Assembly, Inner Door, Right Hand Door 19168...
  • Page 116 Page 110 21 -CET-8 Service Manual Figure 6-5. Electronic Timer Control Panel Assembly Printed 12/90...
  • Page 117 21 -CET-8 Service Manual Page 111 Figure 6-5. Electronic Timer Control Panel Assembly Item Part No. Description Quantity 104163 Control Panel with Studs 104052 Label, Control Panel, Electronic 1040071 Timer, Compensating 101655 Washer, Flat #10 S/S 104223 Nut, Hex 6-32 Elastic Lock 03525 Socket, Relay 101655...
  • Page 118 Page 112 21 -CET-8 Service Manual Figure 6-6. Mechanical Timer Control Panel Assembly Printed 12/90...
  • Page 119 21 -CET-8 Service Manual Page 113 Figure 6-6. Mechanical Timer Control Panel Assembly Item Part No. Description Quantity 104085 Control Panel with Studs 103722 Label, Control Panel, Manual 20476 Timer with Mounting Screws (2) 113071 Timer Knob 03525 Relay Socket 101655 Washer, Plat #10 104223...
  • Page 120 Page 114 21 -CET-8 Service Manual Figure 6-7. Electrical Components Assembly Printed 12/90...
  • Page 121 21-CET-8 Service Manual Page 115 Figure 6-7. Electrical Components Assembly Part No. Description Quantity 104092 Panel, Component Weldment Assembly 20533 Transformer 75VA, 240/480 Primary, 120 Secondary T075 103905 Contactor 30 Amp, Mercury 101541 Terminal Segment, Clamp Type, 85 Amp 101540 End Segment, Terminal Block, 85 Amp 06341 Fuse Holder, Buss HPS-EE...
  • Page 122 Figure 6-8. Steam Generator Assembly Printed 12/90...
  • Page 123 Figure 6-8. Steam Generator Assembly Item Part No. Description Quantity 104069 Generator Assembly. Weldment 19170 Screw, 1/4-20 x .625 Hex Hed. 8/8 23105 Washer, Lock 8/8 1/4', Katlink Style 14665 Nut, Hex 1/4-20, Elastic Lock 23116 Washer, Flat. 1/4" I.D. x 5/6" 0.D., 8/8 104060 Insulation, Cut, Generator 104059...
  • Page 124 Figure 6-0. Heater Assembly Printed 12/90...
  • Page 125 Figure 6-9. Heater Assembly Item Part No. Description Quantity 103731 Thermostat, HI-Limit, Capillary 103736 Adapter, Extended Compression Heater Element Replacement Kits 104461 208V kit with Element 103881 (Item 4) and Items 5 and 6 1044611 240V kit with Element 1038811 (item 4) and Items 5 and 6 1044612 415V kit with Element 1038812 (Item 4) and hems 5 and 6 1044614...
  • Page 126 Page 120 21 -CET-8 Service Manual Figure 6.1 OA. Float Assembly - Before Serial #WC11379-901-01 Printed 12/90...
  • Page 127 21 -CET-8 Service Manual Page 121 Figure 6-10A. Float Assembly - Before Serial #WC11379-901-01 Item Part No. Description Quantity 1022331450 Tubing, 1/4 Polyprop 06192 Fitting, Tube 1/4" x 1/8" 06216 Compression Fitting, 1/" x 1/4, Tubing 06192 Fitting, 1/4 T x 1/8 MPT - 90° 04277 Nozzle, Spray, Wall Connect 104039...
  • Page 128 Page 122 21-CET-8 Service Manual Figure 6-10B. Float Assembly - After Serial #WC11379-901-01 Printed 12/90...
  • Page 129 21 -CET-8 Service Manual Page 123 Figure 6-10B. Float Assembly - After Serial #WC11379-901-01 Item Part No. Description Quantity 1043791550 Hose, 1/4- l.D., Silicone Rubber 104383 Clamp, Hose, Nylon, 1/2" 104380 Fitting, Hose Barb, 1/4' Hose to 1/8" MPT 104381 Fitting, Hose Barb, 1/4"...
  • Page 130 Figure 6-11. Water Inlet System Printed 12/90...
  • Page 131 Figure 6-11. Water Inlet System Item Part No. Description Quantity 22218 Solenoid Valve 06214 90° Comp. Fitting 06216 Straight Comp. Fitting 1/4" x 1/4" 06188 Tee, Brass, 1/4" 1022330600 Tubing, 1/4 Polyprop. 6" 1014091 Mounting Bracket 101872 Thread Cuting Screw #B-32 x 1/4 1022331450 Tubing, 1/4 Polyprop, 14.5"...
  • Page 132 Figure 6-12. Condenser And Drainage Systems Printed 12/90...
  • Page 133 Figure 6-12. Condenser And Drainage Systems Part No. Description Quantity 085040750 Hose, 1/2" Darl Preen x 7.5" 06237 Hose Barb, 1/2- x 1/2- NPT Fitting 05253 Elbow, 1/2" Street, Brass 22221 Valve, Drain, Asco 06241 Hos e Barb, 3/4" x 1/2" NPT Fitting 085050450 Hose, 3/4"...
  • Page 134 Figure 6-13. Equipment Stand Printed 12/90...
  • Page 135 Figure 6-13. Equipment Stand Item Part No. Description Quantity 104240 Tabletop, Equipment Stand 100413 Foot Assembly, Adjustable 100241 Foot, Adjustable 104243 Shelf. Sliding 41423 Slide Assembly 101305 Pin, Rack 14677 Nut. Acorn, 1/4-20 Printed 12/90...
  • Page 136 Figure 6-14. SteamCraft 3.1 Wiring Diagram • Electronic Time Printed 12/90...
  • Page 137 Figure 6-15. SteamCraft 3.1 Schematic Diagram - Electronic Timer Printed 12/90...
  • Page 138 Figure 6-16. SteamCraft 3.1 Wiring Diagram • Mechanical Timer Printed 12/90...
  • Page 139 Figure 6-17. SteamCraft 3.1 Schematic Diagram - Mechanical Timer Printed 12/90...

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