Despatch LAC2-12-7 - Manual (Page 3)

LAC Series Oven Owner ’s Manual P REFACE
Version 1 3
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.
Table of Contents
1. About This Manual ............................................................................................................. 6
1.1. Important User Information ..................................................................................... 6
1.2. Manufacturer & Service .......................................................................................... 7
1.3. Organization of this Manual .................................................................................... 7
1.4. Conventions ............................................................................................................. 8
1.5. Specifications .......................................................................................................... 9
1.5.1. Dimensions .......................................................................................................... 9
1.5.2. Capacities .......................................................................................................... 10
1.5.3. Power ................................................................................................................. 11
1.5.4. Temperature ....................................................................................................... 12
1.5.5. LAC-7 Series Oven Operating Conditions ........................................................ 12
2. Safety ................................................................................................................................ 13
2.1. Safety Information ................................................................................................. 13
2.1.1. Lockout .............................................................................................................. 13
2.1.1.1. Lockout Requirements ................................................................................... 13
2.1.1.2. Lockout Procedure ......................................................................................... 13
2.1.2. Door and Panel .................................................................................................. 14
2.2. Provisions for Lifting and Carrying....................................................................... 14
2.3. Maintenance .......................................................................................................... 15
2.4. Electrical Power ..................................................................................................... 15
2.5. Fire ......................................................................................................................... 16
2.6. Equipment Lockout Requirements ........................................................................ 16
2.6.1. Emergency Stop ................................................................................................. 16
2.7. Disconnecting Devices .......................................................................................... 16
2.7.1. Power Requirements .......................................................................................... 16
2.7.2. Disconnecting Hard-Wired Units ...................................................................... 16
2.7.3. Disconnecting Corded Units .............................................................................. 17
2.7.4. Disconnecting Units with Optional Disconnect Switch .................................... 17
3. Theory of Operation ......................................................................................................... 18
3.1. The LAC-7 Series Oven ........................................................................................ 18
3.2. Damper Control ..................................................................................................... 19
3.2.1. Determining Damper Settings ........................................................................... 19
3.2.1.1. Damper Full Closed Position ......................................................................... 19
3.2.1.2. Damper Full Open Position ........................................................................... 19
3.2.1.3. Other Damper Settings .................................................................................. 20
3.3. The Protocol 3 Controller ...................................................................................... 20
4. Assembly & Setup ............................................................................................................ 22
4.1. Unpack & Inspect the LAC-7 Series Oven ........................................................... 22
4.1.1. If Damaged During Shipping ............................................................................ 23
4.2. Set-Up the LAC-7 Series Oven ............................................................................. 23
4.2.1. Select Oven Location/Operating Environment .................................................. 23
4.2.2. Set-up Procedure ............................................................................................... 23
4.2.3. Wiring & Power Connections ........................................................................... 24
4.2.3.1. Wire LAC-7 Models 2-12 and 2-18 .............................................................. 25
5. Operation .......................................................................................................................... 28
5.1. Load Oven ............................................................................................................. 28
5.2. Pre-Startup Checklist ............................................................................................. 29
5.3. Operating Procedure .............................................................................................. 29