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TurboChef HHB-8028

TurboChef HHB-8028
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Accelerating the World of Cooking
TM
High h Batch Service Manual
     
 

800.90TURBO
P
art Number: HHB-8707/Revision A/June 2005

Table of Contents

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TurboChef HHB-8028 Specifications

General IconGeneral
ModelHHB-8028
Power SourceElectric
Interior Capacity0.8 cu. ft.
Control TypeDigital
Cooking ModesMicrowave, Convection, Combination
Phase1
NEMA Plug6-20P
Temperature Range200°F - 500°F (93°C - 260°C)
Voltage208/240V

Summary

Safety Instructions

Important Safety Information

Crucial safety warnings regarding installation, use, and maintenance to prevent damage and injury.

General Safety Information

Guidelines for proper appliance usage and restrictions to ensure safe operation.

Reducing Fire Risk

Procedures to follow if materials inside the oven ignite or smoke is observed.

Preventing Oven Damage

Specific instructions to avoid damaging the oven during operation and cleaning.

Grounding Instructions

Information on proper grounding to reduce the risk of electric shock.

Power Cord Replacement

Guidelines on who should replace a damaged power cord to avoid hazards.

Theory of Operation, Specifications and Installation

Theory of Operation

Explanation of how the High h Batch oven uses high heat transfer for rapid cooking.

Certifications

Lists safety and compliance certifications (UL, cUL, NSF).

Dimensions

Detailed physical dimensions for single and double unit configurations.

Construction

Describes the exterior and interior materials and features of the oven.

Electrical Specifications

Voltage, phase, frequency, current, and cord/plug details for different regions.

Installation

Lifting and Placing the Oven

Safety warnings and instructions for safely moving and positioning the oven.

Setup

Steps to prepare the oven after positioning, including removing packing and installing the rack.

Operating the Oven

Control Display and Key Identification

Identifies and describes the oven's control panel display and keys.

Oven States and Menu Access

Explains the different operational states of the oven and how to access menus.

Menu Descriptions

Explains the purpose of the Edit, Options, Recipe, and Test Mode Menus.

Powering Up

Step-by-step guide for turning the oven on and its initial warm-up.

Powering Down

Step-by-step guide for turning the oven off and the cool-down process.

Cooking Instructions

Selecting a Food Group

How to select a food group from the available options to begin cooking.

Selecting a Food Item

How to select a specific recipe within a food group to initiate a cook cycle.

Cooking Options

Time Screen Options

Allows adjusting cook time in 5-second increments before starting a cycle.

Done Screen Options

Offers choices at end of cycle: Save Time or Cook More.

Using the Options Menu

Options Menu Functions

Lists functions like Edit Menu, Erase Recipe, Write Card, Time Screen, Demo Mode.

EnablingDisabling the Edit Menu

How to enable or disable the Edit Menu for modifying settings.

Erasing the Recipe Menu

Procedure to permanently delete stored recipes and settings from the oven.

EnablingDisabling the Write Card Function

How to enable or disable saving recipes to a Smart Card.

EnablingDisabling Time Screen

How to enable or disable the Time Screen for cook time adjustments.

EnablingDisabling Done Screen

How to enable or disable the Done Screen options (Save Time, Cook More).

EnablingDisabling Demonstration Mode

How to enable or disable the mode for showcasing oven features without heating.

Programming Recipes

Adjusting the Cook Chamber Temperature

Step-by-step guide to change the oven's cooking temperature.

Modifying Recipes

How to preset cooking specifications for up to 72 items organized into food groups.

Diagnosing an Issue

Fault Codes: Descriptions, Clearing Instructions, and Troubleshooting

Explains fault codes (F1-F8), how to view the fault log, and general troubleshooting steps.

F1: BLOWER (Blower Running Status Bad)

Troubleshooting steps for blower motor faults, including clearing and testing procedures.

F2: LOW TMP (Cook Temperature Low)

Troubleshooting steps for low cook temperature faults and how to clear them.

F6: EC TEMP (Electrical Compartment Temperature High)

Troubleshooting for high electrical compartment temperature faults and clearing methods.

F7: THERMO (Thermocouple Open)

Troubleshooting steps for thermocouple faults and continuity checks.

F8: HEAT LOW

Troubleshooting for slow heat rise during warm-up and error message display.

Status Indicators

Door Status Indicator

Indicates if the door is open (backlit) or closed (not backlit).

Heater A Status Indicator

Indicates if Heater A is on or off via backlight.

Heater B Status Indicator

Indicates if Heater B is on or off via backlight.

Blower Status Indicator

Indicates if the Blower is on or off via backlight.

Testing Options

Oven Component Tests

Accesses tests for Blower Motor, Heaters, Rack Oscillator, and more.

Diagnostic and Data Viewing

Accesses diagnostic mode, fault logs, counters, and time readings.

Settings and Identification

Accesses temperature offset, unit settings, and serial number.

The Control System

Control System Overview

Explains the function of the control system and section contents.

Serviceable Control System Components

Lists replaceable components like Blower Motor Controller, Display, Power Supply, etc.

The Oven Door

Oven Door Overview

Information on oven door components, parts, and troubleshooting.

Serviceable Oven Door Components

Lists replaceable parts like Door Gasket, Door Hinge, and Door Switch.

The Impingement Circuit

Impingement Circuit Overview

Explains the function of the impingement circuit and section contents.

Serviceable Impingement Circuit Components

Lists replaceable parts like Blower Motor, Heater Element, Jetplates, and Swing Arm Assembly.

The Filtering System

Filtering System Overview

Explains the filtering system and its components.

Catalytic Converter Service

Instructions for servicing the Catalytic Converter, including removal and cleaning.

Filter Replacement

Instructions for removing and replacing the oven filters.

Cleaning the Oven

Daily Maintenance Procedures

Regular cleaning procedures to maintain the oven's performance.

Deep Clean Instructions

Recommended monthly deep cleaning procedures for optimal performance.

High h Batch Schematic

Schematic Diagram

Detailed electrical schematic of the High h Batch oven.

Comprehensive Part Listing

Component Part Numbers and Illustrations

A detailed list of all oven parts, their numbers, and corresponding illustration pages.

Hardware Descriptions

Fastener and Component Descriptions

Detailed descriptions and specifications for various hardware components used in the oven.

Glossary of Terms

Definitions of Oven Terminology

Explains common terms and acronyms used in the manual.

Subject Index

Index of Topics and Page Numbers

An alphabetical index of all topics covered in the manual with corresponding page references.

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