User Manual
Table Of Contents
- Revision History
- Table of Contents
- Figures
- Tables
- 1. About This Manual
- Copyright © 2012 by Despatch Industries.
- Printed and bound in the United States of America.
- Table 1. Operating/Environmental Conditions (For indoor use).
- 2. Safety
- 2.1. Safety Information
- 2.1.1. Lockout
- 2.1.1.1. Lockout Requirements
- 2.1.1.2. Lockout Procedure
- 2.2. Provisions for Lifting and Carrying
- 2.3. Maintenance
- 2.4. Electrical Power
- 2.5. Fire
- 2.6. Equipment Lockout Requirements
- 2.6.1. Emergency Stop
- 2.7. Disconnecting Devices
- 2.7.1. Power Requirements
- 2.7.2. Disconnecting Hard-Wired Units
- 2.7.3. Disconnecting Corded Units
- 2.7.4. Disconnecting Units with Optional Disconnect Switch
- 3. Theory of Operation
- Table 2. Control Instrument Explanations.
- Review the Protocol 3 Controller Owner’s Manual for more information.
- Table 3. High Limit Instrument Explanations.
- 4. Assembly & Setup
- 5. Operation
- Table 4. Control Instrument Operating Parameters.
- Table 5. Control Instrument Set-up Parameters.
- Refer to Table 5 to change tuning parameters, if necessary.
- Table 6. High Limit instrument Setup Parameters.
- 6. Maintenance
- 6.1. Checklist
- 6.2. Lubrication
- 6.3. Cleaning and Decontamination
- 6.3.1. Cleaning the LBB Series Oven
- 6.3.2. Decontaminating the LBB Series Oven
- 6.4. Routine Tests
- 6.4.1. Test Control Instrument
- 6.4.2. Test High Limit Instrument
- 6.5. Replacement Parts
- 6.5.1. Replace the Control Instrument
- 6.5.2. Replace High Limit Instrument
- 6.5.3. Replace (Optional) Protocol 3 Controller
- 6.5.4. Replace Heater Unit
- 6.5.5. Replace Fan Motor
- 7. Troubleshooting
- Table 7. Common Technical Issues and Remedies.
- 8. Appendices
- Each oven schematic (Section 0) shows the wiring for this option.
- Each oven schematic (Section 8.4) shows the wiring for this option.
- Each oven schematic (Section 0) shows the wiring for this option.
- Table 8. LBB1-23A-1 Parts.
- Table 9. LBB1-23B-1 Parts.
- Table 10. LBB1-43A-1 Parts.
- Table 11. LBB1-43B-1 Parts.
- Table 12. LBB1-69A-1 Parts.
- Table 13. LBB1-69B-1 Parts.
- Table 14. LBB2-12-1 Parts.
- Table 15. LBB2-18-1 Parts.
- Table 16. LBB2-27-1 Parts.

LBB Series Oven Owner’s Manual SAFETY
Version 15 19
Copyright © 2012 by Despatch Industries.
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.
2.7. Disconnecting Devices
2.7.1. Power Requirements
Despatch recommends the LBB Series Ovens have unobstructed access to a dedicated power
source.
Use a power stabilizer if voltage fluctuation is greater than ±10%
nominal voltage fluctuation.
2.7.2. Disconnecting Hard-Wired Units
LBB permanently-connected (hard-wired) ovens include models LBB1-69, LBB2-12, LBB2-18
and LBB2-27. Permanently-connected and multi-phased equipment must employ a switch or
circuit-breaker as means for disconnection. For permanently-connected equipment, installation
instructions must specify a switch or circuit-breaker is included during the facility oven
installation for complete isolation.
The disconnecting device must be installed in close proximity to the equipment and within easy
reach of the operator. The disconnecting device must be marked as the disconnecting device for
the equipment. If the unit is equipped with an ON/OFF switch, mark the ON/OFF position
clearly.
Follow local codes and requirements for installing and using
disconnect switches.
Danger!
Keep switch or circuit-breaker in building installation, close to
the equipment, within easy reach of the operator and clearly
marked.
2.7.3. Disconnecting Corded Units
LBB cord-connected ovens include models LBB1-21 and LBB1-43. To disconnect a corded unit,
unplug the cord from the power source.