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LAC/LFC Series Oven Owner's Manual
Version 1.12
LAC/LFC SERIES OVEN WITH
PROTOCOL 3™ CONTROLLER
OWNER'S MANUAL
All rights reserved. No part of the contents of this manual may be reproduced, copied or transmitted in any form or by any
means including graphic, electronic, or mechanical methods or photocopying, recording, or information storage and
retrieval systems without the written permission of Despatch Industries, unless for purchaser's personal use.
Copyright © 2018 by Despatch Industries.
P
REFACE
C-266
PN 337069
VERSION 1.12
05/2018
1
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Table of Contents
Troubleshooting
Related Manuals for Despatch LFC1-38-8
Summarization of Contents
About This Manual
Important User Information
Provides essential safety and usage guidelines for the oven operator and user.
Manufacturer, Model Nomenclature & Service
Details the oven's manufacturer, model naming conventions, and service contact information.
Organization of this Manual
Outlines the structure and content of the owner's manual for easy navigation.
Conventions
Explains symbols, warnings, and formatting used throughout the manual for clarity.
Specifications
Dimensions and Capacities
Details the physical size, weight, and load/volume capacities of the oven models.
Power Requirements
Specifies voltage, amperage, and wiring requirements for oven operation.
Temperature Performance
Covers temperature ranges, uniformity, control stability, and repeatability.
Environmental Operating Conditions
Defines the recommended ambient conditions for optimal oven performance and safety.
Safety Information and Precautions
Lockout Procedures and Requirements
Details critical safety steps for de-energizing the oven before maintenance or repair.
Door, Panel, and Lifting Safety
Highlights safety precautions related to oven doors and control panel security.
Maintenance and Electrical Safety
Covers general maintenance practices and critical safety measures for electrical systems.
Fire Prevention and Response
Offers advice on preventing fires and outlines procedures to follow in case of a fire incident.
Equipment Lockout and Emergency Stop
Emphasizes lockout requirements for safety and details the function of the emergency stop.
Disconnecting Devices
Explains methods for safely disconnecting power sources from the oven.
Airflow Switches: Recirculation and Forced Exhaust
Describes the function and importance of airflow switches for oven safety.
Theory of Operation
LAC-8 Series Oven Airflow and Function
Explains the recirculating airflow system and applications of the LAC-8 oven.
LFC Specific Operation and Safety
Details Class A features for solvent handling and NFPA compliance for LFC ovens.
Damper Control and Settings
Covers the manual damper mechanism and factors for determining optimal settings.
Damper Positions and Exhaust Control
Explains the effects of full closed/open damper positions and LFC exhaust damper control.
Other Damper Settings and Controller
Discusses damper influences on uniformity/cool-down and the Protocol 3 controller features.
Assembly and Setup
Unpacking and Inspection Procedures
Guide to safely unpacking the oven and inspecting for any shipping damage.
Handling Shipping Damage
Steps to take if the oven is found to be damaged after shipment.
Oven Setup and Location
Instructions for selecting an appropriate location and preparing the oven for operation.
General Set-up Procedure
Details the essential steps and safety warnings for setting up the oven.
Wiring and Power Connections
Covers the process of connecting the oven to the electrical power supply.
Wiring LAC-8 Models 2-12 and 2-18
Specific wiring instructions for hardwired LAC-8 models, including power cord routing.
Operation Procedures
Loading the Oven Safely
Guidelines for properly loading items into the oven to ensure even heating and safety.
Pre-Startup Checklist
A comprehensive checklist to ensure the oven is ready for operation before starting.
Oven Start-up and Operating Modes
Covers the sequence for starting the oven and utilizing different operating modes.
Maintenance and Servicing
Maintenance Checklist
A checklist for regular upkeep of the oven and its components.
Testing Airflow and Purge Timer
Procedure for testing critical safety components (airflow switches and purge timer) on LFC models.
Lubrication and Cleaning
Instructions for lubricating moving parts and basic cleaning of the oven interior.
Decontaminating the Oven
Procedure for safely decontaminating the oven work zone and its components.
Routine Tests and Switch Operations
Covers essential routine tests for oven performance and testing airflow switches.
Checking Switches via Circuit Board LEDs
Using onboard LEDs to verify the status of power, switches, and the purge timer.
Airflow Switch Adjustment
Procedure for adjusting the sensitivity of recirculation and exhaust airflow switches.
Summary of Airflow Switch Conditions
Defines the required switch states for proper operation and safety interlocks.
Door Adjustment and Replacement Parts
Instructions for adjusting the oven door latch and ordering replacement components.
Replacing Controller, Heater, and Fan Motor
Step-by-step instructions for replacing key internal components like the controller, heater, and fan motor.
Troubleshooting Guide
Troubleshooting Oven Symptoms
Lists common oven symptoms, their probable causes, and suggested corrective actions.
Troubleshooting Error Messages and Alarms
Explains common error messages displayed by the controller and their remedies.
Appendices and Options
Standard Products Warranty
Details the terms and conditions of the standard product warranty for Despatch ovens.
LAC-8 Series Oven Options Overview
Provides an overview of optional features available for the LAC-8 Series oven.
Specific Oven Options Details
Describes optional features like door locks, interior lights, and high limit alarms.
Additional Optional Features
Covers optional forced exhaust and clean dry air/nitrogen functionalities.
Mechanical and Electrical Drawings Reference
References to mechanical drawings and electrical schematics for technical review.
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Questions and answers