P
REFACE
RFD
Oven Series 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.
Check Fan Rotation and Other Preliminaries ........................................................ 28
5.3.2.
Start and Operate the Oven ................................................................................... 29
5.3.3.
Shutdown ............................................................................................................... 29
5.3.4.
Working with Protocol 3 Operating Modes .......................................................... 30
6.
Maintenance ..................................................................................................................... 31
6.1.
Checklist ................................................................................................................ 31
6.2.
Maintenance Schedule ........................................................................................... 32
6.3.
Check Fans ............................................................................................................ 33
6.4.
Test Purge Timer ................................................................................................... 33
6.5.
Test Airflow Switch .............................................................................................. 33
6.5.1.
To Set or Adjust Airflow Switch ........................................................................... 33
6.5.2.
Example: Verify Exhaust Fan Airflow Switch Setpoint........................................ 33
6.6.
Lubrication ............................................................................................................ 35
6.7.
Check Safety Controls ........................................................................................... 35
6.8.
Check High-Limit Controller ................................................................................ 35
6.9.
Replacement Parts ................................................................................................. 36
6.10.
Repairs ................................................................................................................... 36
6.10.1.
Protocol 3 Controller .................................................................................... 36
7.
Troubleshooting................................................................................................................ 37
7.1.
Troubleshooting: Possible Problems and Solutions .............................................. 37
7.2.
Troubleshoot Airflow Conditions .......................................................................... 38
7.3.
Troubleshooting: Error Messages and Alarm ........................................................ 39
8.
Appendices ....................................................................................................................... 40
8.1.
Standard Products Warranty .................................................................................. 40
8.2.
MRC5000 Setup (Optional) .................................................................................. 41
8.3.
Electrical Schematics ............................................................................................. 41
Figures
Figure 1. Design Information and Specification Label. ................................................................ 10
Figure 2. Electrical Specification Label. ....................................................................................... 11
Figure 3. Disconnect Switch.......................................................................................................... 15
Figure 4. RFD Oven Series. .......................................................................................................... 16
Figure 5. RFD Fresh Air Damper Control. .................................................................................... 17
Figure 6. RFD Exhaust Damper Control. ...................................................................................... 17
Figure 7. Standard perforated panels and adjustable louvers. ....................................................... 19
Figure 8. Initial factory settings for optional louvers. ................................................................... 19
Figure 9. Protocol 3 Operator Interface. ........................................................................................ 21
Figure 10. The Purge timer red light is illuminated during the timing period. .............................. 22
Figure 11. Airflow interlocking safety switch. .............................................................................. 22
Figure 12. RFD Forced Exhaust Assembly. .................................................................................. 24
Figure 13. Power, Heat and Alarm Silence Switches. ................................................................... 28
Figure 14. Minimum purge time is listed on the RFD oven design specification label. ............... 28
Figure 15. Airflow Switch Indicator. ............................................................................................ 34
Figure 16. Adjust the airflow switch. ............................................................................................ 35
Figure 17. RFD2-13-2E, 208V (Drawing 320219-01). ................................................................. 42
Figure 18. RFD2-13-2E, 208V (Drawing 320219-02). ................................................................. 42
Figure 19. RFD2-13-2E, 240V (Drawing 320221-01). ................................................................. 42
Figure 20. RFD2-13-2E, 240V (Drawing 320221-02). ................................................................. 42
