Despatch LAC2-12-6 User Manual

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LAC-6 SERIES OVEN

OWNER’S MANUAL

C-194

PN 150138 VERSION 16 3/2011

ABOUT THIS MANUAL	LAC Series Oven Owner’s Manual
2	Version 10

Revision History

Revision	Date	Author	Description
B			Updated contents of Drawings Section
			Updated Protocol Plus instructions
C			Added “Operating Environment” note to Operating
			section. Updated drawings. Modified Preface
D			Modified per Rev C Protocol Plus software
E			Various corrections
F			Updated drawings
G			Updated Despatch warranty.
H			Updated drawing
I			Update to Protocol Plus Version 4
J			Ref. CAR 1165C
K			Changes to Unpacking and Inspection
L			Changed drawings
M			Revised Protocol numbers. Updated Despatch
			address
N			Updated warranty
O			Updated Protocol Plus Section
16	3/2011	K. Livingston	Revise format.

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.

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Table of Contents
1.	About This Manual .................................................................................................			5
	1.1.	Important User Information ..........................................................................		5
	1.2.	Manufacturer & Service................................................................................		6
	1.3. Organization of this Manual .........................................................................			6
	1.4.	Conventions ..................................................................................................		7
	1.5.	Specifications ................................................................................................		8
	1.5.1.		Dimensions................................................................................................	8
	1.5.2.		Capacities ..................................................................................................	9
	1.5.3.		Power.......................................................................................................	10
	1.5.4.		Temperature ............................................................................................	11
2.	Safety ....................................................................................................................			12
	2.1.	Safety Information ......................................................................................		12
	2.1.1.		Lockout....................................................................................................	12
	2.1.1.1.		Lockout Requirements.........................................................................	12
	2.1.1.2.		Lockout Procedure...............................................................................	12
	2.1.2.		Door and Panel ........................................................................................	13
	2.2.	Maintenance ................................................................................................		13
	2.3.	Electrical Power ..........................................................................................		13
	2.4.	Fire ..............................................................................................................		14
	2.5.	Equipment Lockout Requirements .............................................................		15
	2.5.1.		Emergency Stop ......................................................................................	15
3.	Theory of Operation..............................................................................................			16
	3.1. The LAC-6 Series Oven..............................................................................			16
	3.2.	Damper Control ..........................................................................................		17
	3.2.1.		Determining Damper Settings .................................................................	17
	3.2.1.1.		Damper Full-Closed Position ..............................................................	17
	3.2.1.2.		Damper Full-Open Position.................................................................	17
	3.2.1.3.		Other Damper Settings ........................................................................	18
	3.3. The Protocol Plus Controller ......................................................................			19
4.	Assembly & Setup ................................................................................................			20
	4.1. Unpack & Inspect the LAC-6 Series Oven.................................................			20
	4.1.1. If Damaged During Shipping ..................................................................			20
	4.2. Set-up the LAC-6 Series Oven ...................................................................			20
	4.2.1. Select Oven Location/Operating Environment .......................................			20
	4.2.2.		Set-up Procedure .....................................................................................	21
	4.2.3. Wiring & Power Connections .................................................................			22
	4.2.3.1. Wire LAC-6 Models 2-12 and 2-18 ....................................................			23
	4.3.	MRC5000 Setup (Optional) ........................................................................		25
5.	Operation...............................................................................................................			26
	5.1.	Load Oven...................................................................................................		26
	5.2.	Pre-Startup Checklist ..................................................................................		27
	5.3.	Operating Procedure ...................................................................................		28
	5.3.1.		Start Oven................................................................................................	28
	5.3.2. Working with Protocol Plus Operating Modes .......................................			28
6.	Maintenance ..........................................................................................................			29

ABOUT THIS MANUAL	LAC Series Oven Owner’s Manual
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	6.1.	Checklist .....................................................................................................	29
	6.2.	Lubrication ..................................................................................................	30
	6.3.	Routine Tests ..............................................................................................	30
	6.4.	Door Adjustment.........................................................................................	30
	6.5.	Replacement Parts.......................................................................................	30
	6.5.1. Replace the Protocol Plus Controller ......................................................		31
	6.5.2.	Replace Heater Unit ................................................................................	31
	6.5.3.	Replace Fan Motor ..................................................................................	32
7.	Troubleshooting ....................................................................................................		34
	7.1. Troubleshooting Error Messages and Alarms.............................................		34
	7.2.	Troubleshooting Symptoms ........................................................................	34
8.	Appendices............................................................................................................		36
	8.1.	Standard Products Warranty .......................................................................	36
	8.2.	Electrical Schematics ..................................................................................	37
Figures
Figure 1. LAC High-performance Bench-top Oven. ........................................................			16
Figure 2. Horizontal Airflow through the LAC Oven. .....................................................			16
Figure 3. Damper Positions...............................................................................................			17
Figure 4. Protocol Plus Displays and Control Buttons. ....................................................			19
Figure 5. LAC-6 Series Oven Nameplate. ........................................................................			22
Figure 6. Rear Access Panel for Hard-Wired Connections. .............................................			23
Figure 7. Hinged Panel for Simpler Access to Power Connections. ................................			23
Figure 8. Power Connections at Main Circuit Board........................................................			24
Figure 9. Remove Screws to Remove Floor Plate. ...........................................................			31
Figure 10. Heater Panel and Inlet Cone. ...........................................................................			31
Figure 11. Remove Screws to Remove Side Panels. ........................................................			32
Figure 12. Remove Heater Panel by Removing Screw in Front Edge of Each Panel. .....			32
Figure 13. LAC1-10-6 (Excerpt from drawing 146271D01)............................................			38
Figure 14. LAC1-38A-6 (Excerpt from drawing 146273D01).........................................			38
Figure 15. LAC1-38B-6 (Excerpt from drawing 146275D01). ........................................			38
Figure 16. LAC1-67-6 (Excerpt from drawing 146277D01)............................................			38
Figure 17. LAC2-12-6 (Excerpt from drawing 146279D01)............................................			38
Figure 18. LAC2-18-6 (Excerpt from drawing 146281E01). ...........................................			38
Tables
Table 1. MRC 5000 Settings.............................................................................................			25
Table 2. Error Messages and Next Steps. .........................................................................			34
Table 3. Troubleshooting Oven Symptoms. .....................................................................			35

LAC Series Oven Owner’s Manual	ABOUT THIS MANUAL
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1.About This Manual

1.1. Important User Information

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 the publisher, unless it is for the purchaser's personal use.

Printed and bound in the United States of America.

The information in this manual is subject to change without notice and does not represent a commitment on the part of Despatch Industries. Despatch Industries does not assume any responsibility for any errors that may appear in this manual.

In no event will Despatch Industries be liable for technical or editorial omissions made herein, nor for direct, indirect, special, incidental, or consequential damages resulting from the use or defect of this manual.

Values displayed on screens are examples only. Though those values may be typical, contact Despatch Industries for the final value.

Users of this equipment must comply with operating procedures and training of operation personnel as required

by the Occupational Safety and Health Act (OSHA) of 1970, Section 6 and relevant safety standards, as well as other safety rules and regulations of state and local governments. Refer to the relevant safety standards in OSHA and National Fire Protection Association (NFPA), section 86 of 1990.

ABOUT THIS MANUAL	LAC Series Oven Owner’s Manual
6	Version 10

Danger!

Only fully-trained and qualified personnel should setup and maintain this equipment. Improper setup and operation of this equipment could cause an explosion that may result in equipment damage, personal injury or possible death.

The information in this document is not intended to cover all possible conditions and situations that might occur. The end user must exercise caution and common sense when installing or maintaining Despatch Industries products. If any questions or problems arise, call Despatch Industries at 1-888-DESPATCH or 1-952-469-5424.

1.2. Manufacturer & Service

The LAC-6 Series Oven is manufactured by Despatch Industries.

Despatch has specialized in thermal processing for over 100 years. Technical expertise gained over those years helps provide innovative solutions to critical applications in vertical markets and cutting edge technology worldwide. Despatch products are backed by a drive for long-term customer satisfaction and a strong sense of responsibility. The worldwide network of factory-trained Service Professionals is available to support your Despatch equipment. From full service preventive maintenance to routine repair and certified calibration and uniformity, the Despatch service network is positioned to respond to your business needs. Our service programs are customized to meet your specific needs using our Advantage Service Assurance Program (ASAP). For more information on ASAP, visit www.despatch.com.

Global Headquarters	Contact	Service & Technical
		Support
Despatch Industries	International/Main: 1-952-469-5424	Service: 1-952-469-8230
8860 207th Street	US toll free: 1-888-337-7282	US toll free: 1-800-473-7373
Lakeville, MN 55044	Fax: 1-952-469-4513	Service @despatch.com
USA	info@despatch.com
	www.despatch.com

1.3. Organization of this Manual

This owner’s manual contains the most comprehensive set of information for the Despatch LAC-6 Series ovens, including installation instructions, theory of operation, operating instructions, among other things.

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Danger!

Failure to heed warnings in this instruction manual and on the oven could result in personal injury, property damage or death.

1.4.Conventions

This icon signifies important information.

This icon signifies information that describes an unsafe condition that may result in death, serious injury, or damage to the equipment.

Danger!		A condition that may result in death, serious injury, or damage to
Danger!		equipment.

Warning!		A condition that may result in serious injury or damage to
Warning!		equipment.
		equipment.
Caution!		A condition that may result in damage to equipment or product.
	LOG OUT	Reversed-out, Bold, 10pt Arial typeface indicates a specific key or
		button on screen to click.

ABOUT THIS MANUAL	LAC Series Oven Owner’s Manual
8	Version 10

1.5.Specifications

1.5.1.Dimensions

	LAC		Chamber Size				Capacity		Overall Size				Max.		Exhaust Diameter

	Model			in (cm)			feet3			in (cm)			Number of		Located on Back
	No.						(liters)						Shelf		of Chamber
			W*
				D	H				W	D	H		Positions		in (cm)


1-10		13.75		12	12	1		23		19	29.5	5		1
		(35)		(28)	(31)	(33)		(58)		(48)	(75)			(2.5)

1-38A		18.75		18	19	3.7		28		25	35.5	9		2½
		(48)		(46)	(48)	(105)		(71)		(64)	(90)			(6.4)

1-38B		18.75		18	19	3.7		28		25	35.5	9		2½
		(48)		(46)	(48)	(105)		(71)		(64)	(90)			(6.4)

1-67		23.75		20	24	6.6		36		27	40.5	11		2½
		(60)		(51)	(61)	(187)		(91)		(69)	(103)			(6.4)

2-12		23.75		24	36	12		36		31	52.5	17			2 x 2½
		(60)		(61)	(91)	(340)		(91)		(79)	(133)			(6.4)

2-18		35.25		24	36	18		47		29.5	52.5	17			2 x 2½
		(91)		(61)	(91)	(510)		(119)		(75)	(133)			(6.4)

The LAC-6 oven is not intended to process solvents or other volatile or flammable materials. Oven exhaust is intended for cooling purposes only.

Warning!

Do not place this oven in an environment harmful to electrical components.

Placing this oven in an environment detrimental to electrical components (for example, environments where carbon fibers, coal dust or similar contaminants may be present) may result in component failure.

Contact Despatch for options available to help prevent such failures.

* Allow 0.375" (0.95 cm) clearance on each side for shelf supports (3/4 in (1.9 cm) total).

	LAC Series Oven Owner’s Manual						ABOUT THIS MANUAL
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1.5.2. Capacities

	LAC-6 Model Number		1-10-6	1-38 A-6	1-67-6	2-12-6	2-18-6
	LAC-6 Model Number		1-10-6	1-38 A-6	1-67-6	2-12-6	2-18-6
				& B-6

	Maximum Load	Lbs (Kg)	150 (68)	175 (79)	250 (113)	300 (136)	300 (136)

	Maximum Shelf Load	Lbs (Kg)	50 (23)	50 (23)	50 (23)	50 (23)	50 (23)

		CFM	Adjustable	Adjustable	Adjustable	Adjustable	Adjustable
	Exhaust	CFM	to 5	to 12	to 12	to 30	to 40
	Exhaust	(LPS)	to 5	to 12	to 12	to 30	to 40
		(LPS)	(2.4)	(5.6)	(5.6)	(14.2)	(18.9)
			(2.4)	(5.6)	(5.6)	(14.2)	(18.9)

		CFM	150	300	300	600	600
	Recirculating Fan	(LPS)	(71)	(141)	(141)	(282)	(282)
	Recirculating Fan
		H.P.	1/25	¼	¼	¼ x 2	¼ x 2

	Approx. Weight Net	Lbs	110	185	255	360	450
		(KG)	(50)	(84)	(116)	(163)	(204)

	Shipping Weight	Lbs	175	270	360	480	600
		(KG)	(79)	(123)	(163)	(218)	(272)

ABOUT THIS MANUAL	LAC Series Oven Owner’s Manual
10	Version 10

1.5.3. Power

If the line voltage for your LAC-6 Series Oven varies more than 10% from the oven voltage rating, electrical components such as relays and temperature controls may operate erratically.

If the line voltage is lower than the oven voltage rating, heat-up time may be significantly longer and motors may overload or run hot

If the line voltage is higher than the nameplate rating, motors may run hot and draw excessive amperage

	Model		Volts		Amps		Hertz		Phase		Heater	Cord and Plug

											KW


LAC 1-10-6		120		10.0		50/60		1		1		Included, 15 Amp (NEMA 5-15)

LAC 1-38A-6		120		16.5		50/60		1		1.6		Included, 20 Amp (NEMA 5-20)

LAC 1-38B-6 †		240		9.5		50/60		1		1.8		Included, 15 Amp (NEMA 6-15)

LAC 1-67-6†		240		12.0		50/60		1		2.4		Included, 15 Amp (NEMA 6-15)

LAC 2-12-6† ‡		240		18.5		50/60		1		3.6		None, Hardwired

LAC 2-18-6† ‡		240		23.5		50/60		1		4.8		None, Hardwired

† The LAC Series Oven designed for 240 volts (see oven nameplate) will operate satisfactorily on a minimum of 208 Volts, but will result in 25% reduced heater output. If your power characteristic is lower, contact Despatch Industries. An option is available to regain the full heater power when operating on 208V.

‡ The LAC 2-12 and LAC 2-18 must be hardwired to the electric supply using 10 AWG or larger wires suitable for at least 75 °C (167 °F).

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1.5.4. Temperature

	LAC-6 Model Number				1-10		1-38 A		1-38 B	1-67		2-12		2-18
	LAC-6 Model Number				1-10		1-38 A		1-38 B	1-67		2-12		2-18

Time to Temperature		40 °C – 100 °C		8		9		6		6	6		4
(approximate minutes		40 °C – 200 °C		25		32		22		20	19		17
with no load)		40 °C – 260 °C		40		60		36		34	31		29

Recovery Time - Door Open			100 °C	1		1		1		1	1		1
One Minute (approximate			200 °C	3		6		4		3	6		4
minutes with no load)			260 °C	7		14		8		5	9		8

Temperature Uniformity at			100 °C §						± 1 °C
			200 °C§						± 2 °C
			260 °C§						± 2.5 °C
			260 °C§

Operating Range with 20 °C Ambient					40 °C – 260 °C

Control Stability					± 0.5 °C per 5 °C change in ambient

Repeatability					± 0.5° C

§ Figures are based on actual tests in an empty oven. Uniformity can vary slightly depending on unit and operating conditions.

SAFETY	LAC Series Oven Owner’s Manual
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2.Safety

2.1. Safety Information

Do not work on the LAC-6 Series Oven without reading and understanding this section which contains important information and warnings. Ignoring these warnings can result in death, serious injury or damage to the machine and product.

2.1.1.Lockout

Carefully follow the established Lock Out Tag Out policies of your company in all cases.

Machine lockout places the LAC-6 Series Oven into a zero energy state and prevents accidental machine start up. Always follow the Lockout Procedure described in this Section before cleaning, maintaining or repairing the LAC-6 Series Oven. An accidental start-up, while working on the LAC-6 Series Oven, can result in serious injury or death.

2.1.1.1. Lockout Requirements

1. Every power source that can energize any element of the LAC-6 Series Oven must be shut off at the closest possible power source. This includes air, water and electricity, including the Disconnect Switch.

2. After energy sources are locked out, test to ensure circuits are de-energized.

2.1.1.2. Lockout Procedure

Danger!

Electrical panels contain high voltage. Disconnect and lock out the power supply before working inside any electrical panels. Failure to lock out the power supply can result in death or injury.

Personnel authorized to lockout equipment must have the necessary locks to perform the lockout.

1.Physically disconnect all electrical power to the machine or lockout the appropriate breaker or disconnects.

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2.Close all valves and bleed off any pressure.

3.Test for power by attempting a start with the machine controls.

4.Identify the Lockout Condition with a tag on the electrical disconnect and pneumatic shut off valve.

5.When work is complete, remove all tags and restore the machine to its working state.

2.1.2.Door and Panel

The control panel on the LAC-6 Series Oven protect against hazards. Operation without the control panel in place creates hazards that the control panel is intended to render safe for personnel.

Danger!

Electrical panels contain high voltage. Disconnect and lock out the power supply before working inside any electrical panels. Failure to lock out the power supply can result in death or injury.

2.2. Maintenance

Only qualified and trained personnel should perform maintenance or repair.

Warning!

Do not place this oven in an environment harmful to electrical components.

Contact Despatch for options available to help prevent such failures.

2.3. Electrical Power

Only qualified and trained personnel should perform electrical maintenance or electrical repair.

SAFETY	LAC Series Oven Owner’s Manual
14	Version 106

Danger!

Contact with energized electrical sources may result in serious injury or death.

Before performing maintenance, disconnect all electrical power from the machine. Use a padlock and lockout all disconnects feeding power to the machine.

Never clean, or repair the oven when in operation.

Unauthorized alterations or modifications to LAC-6 Series Oven are strictly forbidden. Never modify any electrical circuits. Unauthorized modifications can impair the function and safety of the LAC-6 Series Oven.

Warning!

Do not place this oven in an environment harmful to electrical components.

Contact Despatch for options available to help prevent such failures.

2.4. Fire

Keep the LAC-6 Series Oven clean and free of scrap materials, oil or solvents to prevent the possibility of fire. In the event of fire, use a fire extinguisher as follows.

1.Leave door as it is.

2.De-energize the machine immediately by turning OFF the main power.

3.Shut off fuel (if applicable)

4.Call the fire department or extinguish the fire.

Danger!

Always disconnect all power before extinguishing a fire. Attempting to extinguish a fire in a machine connected to electrical power can result in serious injury or death!

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