Despatch LAC2-12-7 - Manual (Page 4)

P REFACE LAC Series Oven Owner’s Manual
4 Version 1
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.
5.3.1. Start Oven .......................................................................................................... 30
5.3.2. Working with Protocol 3 Operating Modes ...................................................... 30
6. Maintenance ..................................................................................................................... 31
6.1. Checklist ................................................................................................................ 31
6.2. Lubrication ............................................................................................................ 32
6.3. Cleaning and Decontamination ............................................................................. 32
6.3.1. Cleaning the LAC-7 Series Oven ...................................................................... 32
6.3.2. Decontaminating the LAC-7 Series Oven ......................................................... 33
6.4. Routine Tests ......................................................................................................... 33
6.5. Door Adjustment ................................................................................................... 34
6.6. Replacement Parts ................................................................................................. 34
6.6.1. Replace the Protocol 3 Controller ..................................................................... 34
6.6.2. Replace Heater Unit .......................................................................................... 35
6.6.3. Replace Fan Motor ............................................................................................ 36
7. Troubleshooting................................................................................................................ 38
7.1. Troubleshooting Symptoms ................................................................................... 38
7.2. Troubleshooting Error Messages and Alarms ....................................................... 40
8. Appendices ....................................................................................................................... 41
8.1. Standard Products Warranty .................................................................................. 41
8.2. LAC-7 Series Oven Options .................................................................................. 42
8.2.1. Optional MRC5000 Recorder Setup.................................................................. 42
8.2.2. Optional Pneumatic and Electronic Door Lock ................................................. 43
8.2.3. Optional Interior Light ...................................................................................... 43
8.2.4. Optional Door Interlock Switch (Controls Heater & Fan) ................................ 43
8.2.5. Optional High Limit Alarm with Alarm Silence ............................................... 43
8.2.6. Optional Forced Exhaust ................................................................................... 44
8.2.7. Optional Clean Dry Air (CDA)/Nitrogen .......................................................... 44
8.3. Electrical Schematics ............................................................................................. 44
Figures
Figure 1. Disconnect Switch.......................................................................................................... 17
Figure 2. LAC High-performance Bench-top Oven. ..................................................................... 18
Figure 3. Horizontal Airflow through the LAC Oven. .................................................................. 18
Figure 4. Damper Positions. .......................................................................................................... 19
Figure 5. Protocol 3 Controller Operator Interface. ...................................................................... 21
Figure 6. LAC2-18-7 Nameplate. .................................................................................................. 25
Figure 7. Rear Access Panel for Hard-Wired Connections. .......................................................... 26
Figure 8. Hinged Panel for Simpler Access to Power Connections. ............................................. 26
Figure 9. Power Connections at Main Circuit Board. ................................................................... 27
Figure 10. Remove Screws to Remove Floor Plate. ...................................................................... 35
Figure 11. Heater Panel and Inlet Cone. ........................................................................................ 35
Figure 12. Remove Screws to Remove Side Panels. ..................................................................... 35
Figure 13. Remove Heater Panel by Removing Screw in Front Edge of Each Panel. .................. 36
Figure 14. LAC-7 Circuit Board. .................................................................................................. 39
Figure 15. LAC1-10-7, 120V (Drawing 313904A01). .................................................................. 45
Figure 16. LAC1-38A-7, 120V (Drawing 313906A01). ............................................................... 45
Figure 17. LAC1-38B-7, 208V (Drawing 320160A01). ............................................................... 45
Figure 18. LAC1-38B-7, 240V (Drawing 320125A01). ............................................................... 45
Figure 19. LAC1-67-7, 208V (Drawing 320162A01). .................................................................. 45