Despatch LAC2-12-7 - Manual (Page 29)

LAC Series Oven Owner’s Manual O PERATION
Version 1 29
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.
Avoid spilling on the heater elements or oven floor when loading the oven. Do not place the load
on the oven floor plate. Placing the load on the oven floor may cause the load to heat unevenly
and the weight may cause shorting out of the heater elements. Use the shelves provided.
Caution!
Always place loads on the shelves provided to avoid possible
uneven heating and damage to the oven.
The two shelves are designed to be pulled out about halfway without tipping. Do not overload the
shelves (Refer to Support Capacity listed in Section 1.5.2). Distribute the workload evenly so
airflow is not restricted. Do not overfill your oven. The workload should not take up more than
two-thirds of any dimension of the inside cavity.
5.2. Pre-Startup Checklist
Warning!
Do not use flammable solvent or other flammable material in this
oven. Do not process closed containers of any substance or
liquid in this oven because they may explode under heat.

Know the system. Read this manual carefully. Make use of its instructions and explanations.
Safe, continuous, satisfactory, trouble-free operation depends primarily on your degree of
understanding the system and your willingness to keep all parts in proper operating condition.

Check line voltage. Voltage must correspond to nameplate requirements of motors and
controls. A wrong voltage can result in serious damage. Refer to Section 1.5.4 for more
information.

Check fresh air and exhaust openings. Do not be careless about restrictions in and around the
fresh air and exhaust openings and stacks. Under no condition can they be permitted to
become so filled with dirt that they reduce airflow.

Ventilation. An exhaust opening in the rear of the unit is covered by a hat bracket. Do not
remove the hat bracket as it protects the exhaust opening from being completely covered.

For drying ovens, open vent to prevent buildup of moisture.

For sample heating, close vent when no ventilation is required.
5.3. Operating Procedure

For fastest oven heat-up time, close the fresh-air vent. After the
desired temperature is reached, the vent may be adjusted as
needed.