Despatch RFD Series - Manual (Page 35)

RFD Oven Series Owner’s Manual M AINTENANCE
Version 1 35
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.
Figure 16. Adjust the airflow switch.
6.6. Lubrication
Lubricate all door latches, hinges, door operating mechanisms, and wear surfaces to ensure easy
operation.
6.7. Check Safety Controls
Make certain the oven controls are free of dirt and debris and function properly.
6.8. Check High-Limit Controller
The Protocol 3 controller has an integrated high limit function which disables the heater output
when tripped. Check the High Limit controller by:
1. Set the Hi-Limit setpoint below the process temperature. Refer to the Protocol 3 manual as
necessary.
2. The oven should heat and trip the High-Limit controller as it reaches the high limit setpoint.
3. If not, contact Despatch.
Remove the hex cap to gain access to
the slotted setpoint adjustment
Switch setpoint indicated by the top of the
adjustment screw
A switch setting of 0.2 in WC to 1.0 in
WC should detect a fan malfunction