Despatch LCC1-16-3 Installation Manual

Stackable LCC/LCD Oven Owner’s Manual PREFACE

ULTRAFLEX DRYING AND FIRING FURNACE

MODELS 1000, 3615, 3630, 3640

C-204 VERSION 26

10/2008

STACKABLE LCC/LCD OVEN

OWNER’S MANUAL

C-195 PN 156452 VERSION 26 09/2010

Version 26 1

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.

PREFACE Stackable LCC/LCD Oven Owner’s Manual

Revision

Date

Author

Description

B

6/01

Various corrections

C

11/01

Corrections, addition of schematic drawings

D

1/02

Corrections, update of schematic drawings

E

4/02

Update of schematic drawings, modified per Rev C Protocol Plus software

F

7/02

Corrections to Protocol Plus software description

G

9/02

Miscellaneous corrections

H

11/02

Modify operating procedure, update schematic drawings

I

1/03

Update Despatch warranty pages

J

5/03

Update of schematic drawings

K

8/03

Update of schematic drawings

L

11/03

Update to Protocol Plus Version 4.0.

M

12/03

Add door lock manual override and Nitrogen needle valve information

N

2/04

Update of schematic drawings

P

9/04

Update of schematic drawings

Q

11/04

Update of schematic drawings

R

3/05

Update of schematic drawings

S

6/05

Update Declaration of Conformity

T

12/05

Update Declaration of Conformity, add LLC notes

U

8/06

Revised Protocol Plus numbers. Updated Despatch address. Updated CE documents.

V

11/07

Updated warranty

W

12/07

Corrected Nitrogen Inlet connection from 3/8”

to 1/4” X 3/09

Updated Controller Section

Y

2/10

Updated Declaration of Conformity and drawings

25

7/10

K. Livingston

Revise format

26

9/10

K. Livingston

Remove Protocol Plus to separate manual

2 Version 26

Revision History

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.

Stackable LCC/LCD Oven Owner’s Manual PREFACE Version 26 3

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. Model Numbering and Naming Conventions ........................................... 9

1.5.2. Dimensions ................................................................................................ 9

1.5.3. Capacities ................................................................................................ 10

1.5.4. Power ....................................................................................................... 10

1.5.5. 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 ............................................................. 14

2.5.1. Emergency Stop ...................................................................................... 14

3. Theory of Operation .............................................................................................. 15

3.1. The Stackable LCC/LCD Series Oven ....................................................... 15

3.2. The Protocol Plus Controller ...................................................................... 16

3.3. HEPA Filters ............................................................................................... 17

3.3.1. Definitions ............................................................................................... 17

3.3.2. Filter Packaging, Shipping and Handling ............................................... 17

3.3.3. HEPA Filter Validation Testing .............................................................. 18

3.3.3.1. D.O.P. Testing ..................................................................................... 18

3.3.3.2. Class 100 Testing................................................................................. 18

3.3.3.3. Validation Testing ............................................................................... 19

3.3.3.4. HEPA Filter Burn-off Process Not Necessary .................................... 19

3.3.4. HEPA Filter Unit Replacement ............................................................... 19

3.3.5. HEPA Filter: Magnehelic Pressure Gauge .............................................. 20

4. Assembly & Setup ................................................................................................ 21

4.1. Unpack & Inspect The LCC/LCD Oven ..................................................... 21

4.1.1. If Damaged During Shipping .................................................................. 22

4.2. Set-up The LCC/LCD Oven ....................................................................... 22

4.2.1. Select Oven Location .............................................................................. 22

4.2.1.1. Single Oven Placement Requirements ................................................ 22

4.2.1.2. Multiple Oven Placement Requirement .............................................. 22

4.2.2. Oven Utility Connections ........................................................................ 23

4.2.2.1. Nitrogen With Water-Cooled Models ................................................. 24

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.

PREFACE Stackable LCC/LCD Oven Owner’s Manual 4 Version 26

4.2.2.2. Air Atmosphere with Optional Water Cooling Model ........................ 25

4.2.3. Exhaust Connections ............................................................................... 27

4.2.4. Wiring & Power Connections ................................................................. 27

4.3. HEPA Filter Installation ............................................................................. 29

4.3.1. HEPA Filter Burn-Off ............................................................................. 33

4.3.1.1. HEPA Filter Burn-Off Process ............................................................ 33

4.3.1.2. Location of HEPA Filter Burn-Off Process ........................................ 33

4.3.1.3. Recommended HEPA Filter Burn-Off Process ................................... 34

4.4. MRC5000 Setup (Optional) ........................................................................ 35

5. Operation............................................................................................................... 37

5.1. Load Oven ................................................................................................... 37

5.2. Pre-Startup Checklist .................................................................................. 38

5.3. Operating Procedure ................................................................................... 39

5.3.1. Start Oven ................................................................................................ 39

5.3.2. Working with Protocol Plus Operating Modes ....................................... 39

5.3.3. Sequence of Operation for Ovens Equipped with Optional Beacon Light 39

5.3.4. Sequence of Operation for Ovens Equipped for Inert Atmosphere Oven41

5.3.5. Manual Unlock and Main Disconnect ..................................................... 43

5.3.5.1. Manual Unlock .................................................................................... 43

5.3.5.2. Main Disconnect Switch ...................................................................... 43

6. Maintenance .......................................................................................................... 44

6.1. Checklist ..................................................................................................... 44

6.2. Lubrication .................................................................................................. 44

6.3. HEPA Filter Replacement........................................................................... 44

7. Troubleshooting: Error Messages and Alarm ....................................................... 45

8. Appendices ............................................................................................................ 46

8.1. HEPA Filter Pressure Reading Worksheet ................................................. 46

8.2. Standard Products Warranty ....................................................................... 47

8.3. EC Declaration of Conformity .................................................................... 48

8.4. Electrical Schematics .................................................................................. 48

Figures

Figure 1. Stackable LCC/LCD Series Oven. .................................................................... 15

Figure 2. Protocol Plus Displays and Control Buttons. .................................................... 16

Figure 3. This Side Up graphic. ........................................................................................ 17

Figure 4. Magnehelic Pressure Gauge Measures Pressure in front of the HEPA filter. ... 20

Figure 5. Door Lock Manual Override Key (LCC/LCD/LLC/LLD). .............................. 21

Figure 6. LCC/LCD Connections Panel. .......................................................................... 24

Figure 7. Exhaust Port on the Left Side of the LCC/LCD Oven. ..................................... 27

Figure 8. Open the front panel for access. ........................................................................ 28

Figure 9. Conduit entrance at rear of oven and open front panel. .................................... 29

Figure 10. Example HEPA Filter (Silicone-free) and Close-Up. ..................................... 31

Figure 11. Remove inner casing to install HEPA filter. ................................................... 32

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.

Stackable LCC/LCD Oven Owner’s Manual PREFACE Version 26 5

Figure 12. Options for Starting Termikfil 2000 Filter. ..................................................... 34

Figure 13. Power the Oven. .............................................................................................. 39

Figure 14. Nitrogen Flowmeter......................................................................................... 41

Figure 15. Adjust Nitrogen Maintain Needle Valve. ........................................................ 42

Figure 16. Water and Nitrogen Piping Schematic. ........................................................... 42

Figure 17. LCC1-16-3 (Drawing 150008-01). .................................................................. 49

Figure 18. LCC1-16-3 (Drawing 150008-02). .................................................................. 49

Figure 19. LCC1-16-3 (Drawing 150008-03). .................................................................. 49

Figure 20. LCC1-16N-3 (Drawing 150047-01). ............................................................... 49

Figure 21. LCC1-16N-3 (Drawing 150047-02). ............................................................... 49

Figure 22. LCC1-16N-3 (Drawing 150047-03). ............................................................... 49

Figure 23. LCC1-51-3 (Drawing 150044-01). .................................................................. 49

Figure 24. LCC1-51-3 (Drawing 150044-02). .................................................................. 49

Figure 25. LCC1-51-3 (Drawing 150044-03). .................................................................. 49

Figure 26. LCC1-51N-3 (Drawing 159135-01). ............................................................... 49

Figure 27. LCC1-51N-3, Drawing 159135-02). ............................................................... 49

Figure 28. LCC1-51N-3 (Drawing 159135-03). ............................................................... 49

Figure 29. LCC1-51N-3 (Drawing 159135-04). ............................................................... 49

Figure 30. LCC1-51-3 (Drawing 159159-01). .................................................................. 49

Figure 31. LCC1-51-3 (Drawing 159159-02). .................................................................. 49

Figure 32. LCC1-51-3 (Drawing 159159-03). .................................................................. 49

Figure 33. LCC1-51N-3 (Drawing 163141-01). ............................................................... 49

Figure 34. LCC1-51N-3 (Drawing 163141-02). ............................................................... 49

Figure 35. LCC1-51N-3 (Drawing 163141-03). ............................................................... 49

Figure 36. LCC1-51N-3 (Drawing 163141-04). ............................................................... 49

Tables

Table 1. Model Number Key. ............................................................................................. 9

Table 2. HEPA Filter Pressure Reading Worksheet. ........................................................ 20

Table 3. Oven Utility Connections. .................................................................................. 23

Table 4. Exhaust Connection Requirements. .................................................................... 27

Table 5. MRC 5000 Settings. ............................................................................................ 36

Table 6. Desired Oxygen Concentration. .......................................................................... 41

Table 7. Error Messages and Next Steps. ......................................................................... 45

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.

ABOUT THIS MANUAL Stackable LCC/LCD Oven Owner’s 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.

6 Version 26

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.

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.

Stackable LCC/LCD Oven Owner’s Manual ABOUT THIS MANUAL

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.

Global Headquarters

Contact

Service & Technical Support

Despatch Industries

8860 207th Street Lakeville, MN 55044 USA

International/Main: 1-952-469-5424 US toll free: 1-888-337-7282 Fax: 1-952-469-4513 info@despatch.com www.despatch.com

Service: 1-952-469-8230 US toll free: 1-800-473-7373 Service @despatch.com

Version 26 7

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 Stackable LCC/LCD 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.

1.3. Organization of this Manual

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

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.

ABOUT THIS MANUAL Stackable LCC/LCD Oven Owner’s Manual

Danger!

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



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 equipment.

Warning!

A condition that may result in serious injury or damage to 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.

8 Version 26

1.4. Conventions

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.

Stackable LCC/LCD Oven Owner’s Manual ABOUT THIS MANUAL

Model

Number

L 1 - - 3

Position in

Number

1 2 3 4 5 6 7 8

Position in

Model Number

Letter / Number

Letter Meaning

2

C

Model has a HEPA filter

2

L

Model does not have a HEPA filter

3

C

Model operates at 260°C

3

D

Model operates at 350°C

5 & 6

16

1.6 cubic foot model

5 & 6

51

5.1 cubic foot model

7 & 8

N

Model uses a nitrogen atmosphere

7 & 8

V

Model uses Viton* synthetic rubber (Siliconefree option)

Models

Chamber Size

inches (cm)

Capacity ft3 (liters)

Overall Size inches (cm)

Maximum

number of

Shelves

W D H W D

H

LCC1-16-3 LCD1-16-3 LCC1-16N-3 LCD1-16N-3

15

(38)

14

(36)

14

(36)

1.6

(45)

32.5 (83)

35.5 (90)

20.75

(53)

5

LCC1-51-3 LCD1-51-3 LCC1-51N-3 LCD1-51N-3

23

(58)

20

(51)

20

(51)

5.1

(144)

40.5

(103)

42.5

(108)

27

(69)

8



The LCC/LCD oven is not intended to process solvents or other volatile or flammable materials. Oven exhaust is intended for cooling purposes only.

Version 26 9

1.5. Specifications

1.5.1. Model Numbering and Naming Conventions

Table 1 lists the model numbers and follows these conventions:

Table 1. Model Number Key.

Example: LLD1-51NV-3 This 5.1 ft3 model does not have a HEPA filter, operates at 350°C, uses nitrogen and is silicone-free.

1.5.2. Dimensions

*LLC & LLD models have same dimensions.

*

Trademark of E. I. Du Pont De Nemours & Company Corporation.

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.

ABOUT THIS MANUAL Stackable LCC/LCD Oven Owner’s Manual

Model

LCC1-16-3 & LCD1-16-3

LCC1-16N-3 & LCD1-16N-3

LCC1-51-3 & LCD1-51-3

LCC1-51N-3 & LCD1-51N-3

Maximum Load (Lbs)

200

Maximum shelf load (Lbs)

50

25

Recirculating fan

(CFM)

240

435

(H.P.)

1/4

Net weight (Approximate)

(Lbs)

250

380

(KG)

114

172

Shipping weight (Approximate)

(Lbs)

350

525

(KG)

159

238

Exhaust capacity (forced exhaust) (CFM)

35

73

Exhaust Outlet

(Inch)

1.88 x 2.88

(mm)

(48.0 x 73.4)

Model

Volts *

Amps

Hertz

Heater Phase

KW

Cord and Plug

LCC1-16-3 LCD1-16-3

240

14.8

50/60

1

3

None, hardwired

LCC1-16N-3 LCD1-16N-3

240

14.0

50/60

1

3

None, hardwired

LCC1-51-3 LCD1-51-3

240

27.7

50/60

1

6

None, hardwired

LCC1-51N-3 LCD1-51N-3

240

27.7

50/60

1

6

None, hardwired

10 Version 26

1.5.3. Capacities

1.5.4. Power

If the line voltage for your LCC/LCD 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

*The LCC/LCD Oven is 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.

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.

Stackable LCC/LCD Oven Owner’s Manual ABOUT THIS MANUAL

Model

LCC1-16-3 LCD1-16-3

LCC1-16N-3 LCD1-16N-3

LCC1-51-3 LCD1-51-3

LCC1-51N-3 LCD1-51N-3

Time to

Temperature

(approximate

minutes)

(no load)

40°C –

100°C

7 min.

5 min.

40°C –

200°C

30 min.

27 min.

40°C –

260°C

45 min.

35 min.

40°C – 350°C†

60 min.

50 min.

Cooling Time to

Temp

Minutes

(No Load)‡

100°C –

55°C

35 min.

30§ min.

40 min.

25§ min.

200°C –

55°C

65 min.

55§ min.

75 min.

40§ min.

260°C –

55°C

75 min.

60§ min.

85 min.

45§ min.

350°C –

55°C†

130 min.

80§ min.

115 min.

50§ min.

Temperature

Uniformity at**

100°C

±1°C

200°C

±2°C

260°C

±3°C

350°C

±4°C

Maximum

Operating

Temperature

LCC

260°C

LCD

350°C

Operating

Range w/20°C

Ambient

LCC

40°C-260°C

35°C-260°C††

45°C- 260°C

35°C-260°C††

LCD

40°C-350°C

40°C-350°C††

40°C-350°C

40°C-350°C††

Control Stability

+/- 0.5°C

Version 26 11

1.5.5. Temperature

†

For LCD & LLD only, LCC & LLC maximum temperature: 260°C.

‡

Minimum operating temperatures and cooling times are based on a 20°C ambient temperature measured at

the fresh air inlet.

§

Based on cooling water supplied at 2 GPM (7.6 LPM), 16°C for nitrogen atmosphere units.

**

Uniformity figures are based on a nine-point test conducted in an empty oven with thermocouples connected at 3 inches (7.6 cm) from walls after the oven temperature has reached stabilization. Uniformity can vary slightly depending on unit and operating conditions. Class 100 HEPA filtration will limit ramp rates.

††

Requires water cooling be activated for minimum temp rating and operation below 85°C.

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.

SAFETY Stackable LCC/LCD Oven Owner’s Manual

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.

12 Version 26

2. Safety

2.1. Safety Information

Do not work on the Stackable LCC/LCD 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

Machine lockout places the Stackable LCC/LCD 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 Stackable LCC/LCD Oven. An accidental start-up, while working on the Stackable LCC/LCD 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 Stackable LCC/LCD 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

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.

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.

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.

Stackable LCC/LCD Oven Owner’s Manual SAFETY

Danger!

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

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.

Version 26 13

2.1.2. Door and Panel

The door and rear panel on the Stackable LCC/LCD Oven protect against hazards. Power is required to open the door and the oven heater is OFF when the door is open. Operation without these safety devices in place creates hazards that the doors and covers are intended to render safe for personnel.

The door requires a Manual Override Key for use when power is off. The door and panel that require a tool to open are part of the safety system of the Stackable LCC/LCD Oven. Do not open the door while the machine is running.

2.2. Maintenance

Only qualified and trained personnel should perform maintenance or repair.

2.3. Electrical Power

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

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 Stackable LCC/LCD Oven are strictly

forbidden. Never modify any electrical circuits. Unauthorized modifications can impair the function and safety of the Stackable LCC/LCD Oven.

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.

SAFETY Stackable LCC/LCD Oven Owner’s Manual

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!

14 Version 26

2.4. Fire

Keep the Stackable LCC/LCD 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. De-energize the machine immediately by turning OFF the DISCONNECT SWITCH.

2. Turn off the remote main disconnect (customer supplied disconnect).

3. Extinguish the fire.

2.5. Equipment Lockout Requirements

To prevent injury or equipment damage during inspection or repair, the Stackable LCC/LCD Oven must be locked out.

2.5.1. Emergency Stop

When a risk of personal injury or damage to the Stackable LCC/LCD Oven exists, turn OFF the DISCONNECT SWITCH on the front of the oven. This shuts off all electrical power to the oven.

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.

Stackable LCC/LCD Oven Owner’s Manual THEORY OF OPERATION

Danger!

Use care when working with nitrogen. Nitrogen presents an asphyxiation hazard. Handle nitrogen according the safe handling procedures listed in the material safety data sheet.

Figure 1. Stackable LCC/LCD Series Oven.

Version 26 15

3. Theory of Operation

3.1. The Stackable LCC/LCD Series Oven

The Stackable LCC/LCD Series Oven (Figure 1) offers HEPA (High Efficiency Particulate Air) filtration for processes where minimized contamination is essential. The removable HEPA filter is designed to provide a constant flow of 99.97% clean air to the product being heated. The HEPA filter with silicone seal provides 99.99% filtration.

The oven operator interface is located on the hinged control panel at the front of the oven (Figure 1). Power components are located on the equipment panel, behind the hinged control panel, for easy access (Figure 8). Electrical components are either touchproof or are shielded with Lexan7 material to prevent accidental exposure during maintenance and troubleshooting.

The cooling fan is controlled on/off by an event relay in the Protocol Plus Control. The cooling fan is used for rapid cool-down at the end of the process cycle, or to maintain low temperature setpoints during process cycle. It may also be turned on at the start of a process cycle to assure that starting temperature is less than 70°C.

The nitrogen models have stainless steel water coil which permits rapid cool down and lower temperature operation. The nitrogen oven comes with an adjustable flowmeter a for adjusting purge rate, and needle valve for setting maintain rate, separate solenoid valves for purge and maintain operation and a pressure relief exhaust port. An exhaust fan which powers on whenever the oven is running maintains consistent chamber pressure control with varied exhaust stack conditions.

7

Trademark of SABIC Innovative Plastics.

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.

THEORY OF OPERATION Stackable LCC/LCD Oven Owner’s Manual



Stackable units are available in air or nitrogen atmosphere models. Nitrogen atmosphere models are noted with an N suffix. Model numbers beginning with “LL*1-*” do not use a HEPA filter.

Figure 2. Protocol Plus Displays and Control Buttons.

16 Version 26

The oven has a type 304-2B stainless steel interior and a type 304-#4 stainless steel interior. All interior seams are continuously welded on the insulation side. This protects the work chamber from contaminated air and permits chamber washing without damaging the insulation. Interior ductwork may be easily removed for cleaning. Heater frame, fan wheel and motor shaft are constructed of stainless steel.

Two electropolished stainless steel wire shelves are provided. The shelves are removable and adjustable on two inch centers.

The LCC/LCD series design offers a stackable oven body. Multiple oven systems of two or three oven stack options are available. When operating multiple ovens, network the Despatch Protocol Plus controllers together with a Modbus communication option. Use the optional Despatch Protocol Manager software to enable customer PC control of multiple ovens.

3.2. The Protocol Plus Controller

The Protocol Plus controller has two displays. A dedicated LED upper display shows the oven temperature (Figure 2). A two line LCD lower display provides information on control status, high limit temperature and allows changes to be made to the control settings. Review the Protocol Plus controller Owner’s Manual for more 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 Despatch Industries, unless for purchaser's personal use.

Stackable LCC/LCD Oven Owner’s Manual THEORY OF OPERATION



LCC oven chamber temperature transitions must not exceed

1.5°C/minute to maintain class 100 chamber conditions. For ramp rates greater than 1.5°C/minute and up to 5°C/minute, the LCD model will maintain class 100 chamber conditions.



Ship, handle, store and install HEPA filters with pleats positioned vertically. Horizontally-positioned pleats risk breaking at the adhesive line of the filter medium. Horizontally-positioned pleats also collect

entrapped material on “shelves.” The accumulated weight of the

entrapped material may cause sag and lead to early failure of the filter unit.

THIS SIDE UP

Figure 3. This Side Up Graphic.

Version 26 17

3.3. HEPA Filters

The Stackable LCC/LCD Ovens use HEPA (High Efficiency Particulate Air) filters limit particulate size in the work chamber to 0.3 microns or less.

3.3.1. Definitions

Binder: Organic substance used in filter construction to provide the media with

structural strength

Burn-Off: Process for eliminating the binder and D.O.P. contained in the filter from

the manufacturing and testing function.

D.O.P.: Dioctyl Phthalate - Aerosol particles of submicron size used in testing phase

to spot defects or measure filter efficiency.

HEPA: High Efficiency Particulate Air

3.3.2. Filter Packaging, Shipping and Handling

Packaging practice varies among the filter unit manufacturers. Filter units are typically packaged in cardboard cartons with varying approaches for strengthening the container and making it impact-resistant. Shipping cartons are typically marked with a vertical arrow and "This Side Up" (Figure 3). A filter unit is placed in the carton so the pleated folds are vertical (running from top to bottom), versus side to side.

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.

THEORY OF OPERATION Stackable LCC/LCD Oven Owner’s Manual

Caution!

Despatch does not recommend D.O.P. filter testing.

18 Version 26

The filter is typically shipped in the original carton or package provide by the filter manufacturer. This carton or package provides good storage and maximum protection from dirt and moisture. Store and move HEPA filters upright in the shipping carton. Minimize handling of the filter. During installation, remove the filter from the shipping carton and install directly into the oven.

If an unpackaged HEPA filter unit must be placed with its face on the floor or other surface, clear the surface entirely of every object or irregularity which might damage the filter pack.

3.3.3. HEPA Filter Validation Testing

Despatch Industries guarantees the HEPA filters will meet specified efficiency ratings when the following recommendations are followed:

The filter is properly installed The filter is run at or below 200°C, at a constant temperature The filter is run before burn-in

3.3.3.1. D.O.P. Testing

D.O.P. testing uses aerosol particles of submicron size to spot defects or measure filter efficiency. Degenerative by-products of this test are distributed throughout the oven chamber upon heat-up. Despatch does not recommend D.O.P. filter testing.

3.3.3.2. Class 100 Testing

Despatch guarantees a Class 100 environment within the oven. This classification is based on measurement of the particulate level within the oven work chamber.

Class 100 testing may be performed before or after a proper filter burn-in procedure has been performed. Despatch guarantees Class 100 condition measurements based on two methods of test. The direct method employs an extraction-type particulate analyzer. The indirect method involves particle settling over a specified period of time onto a clean disk.

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.

Stackable LCC/LCD Oven Owner’s Manual THEORY OF OPERATION Version 26 19

3.3.3.3. Validation Testing

Despatch recommends the following test sequence for pharmaceutical Class 100 ovens.

1. Proper installation of the HEPA filters (Section 3.3.2).

2. Ambient air challenge to determine integrity of oven chamber and filter

gaskets.

3. Proper filter burn-off procedure.

4. Class 100 testing inside the work chamber.

3.3.3.4. HEPA Filter Burn-off Process Not Necessary

HEPA filters contain a binder material which protects the filter media during production and shipping. Smoke produced from burning this binder at elevated temperatures is undesirable during normal oven operation. Burning off the binder will ensure a clean process at elevated temperatures. However, when the binder is burned out of the filter media, the filter becomes very fragile: too fragile to withstand normal shipping and handling. For this reason, Despatch does not perform the burn-off procedure. The burn-off process is not necessary at temperatures under 200°C.

3.3.4. HEPA Filter Unit Replacement

Periodic replacement the HEPA filter unit due to:

Resistance, or pressure drop, across the filter unit. Maximum level of resistance in

inches (water gauge) will vary depending upon the operation of the filter and the available fan capacity. Adequate fan capacity must be available.

Loss of efficiency (leakage), determined from air-sampling measurements made

downstream of the filter unit.

Visible damage or rupture of the filter media in a unit. Change in process application. Excessive build-up of lint or combustible particulate matter on the filter unit. Water droplets in airstream through filter, free water (RH = 100%), will saturate filter

very quickly and may cause burnout or holes in burned off filter media.

High level of radiation in the vicinity of the filter unit.

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.

THEORY OF OPERATION Stackable LCC/LCD Oven Owner’s Manual

A B C D E

F

Date

Comments

Pressure (inches of water)8

Pressure with: 150 SCFH (LCC1-

16); 200 SCFH (LCC1-51) nitrogen purge9

Pressure with: 75 SCFH (LCC1-

16); 150 SCFH (LCC1-51) nitrogen maintain9

Oven Temperature

Typical Values

2-3”

1.5-2” above value in Column C

0.5-1” above value in Column C

60°C

Filter first installed

Figure 4. Magnehelic Pressure Gauge Measures Pressure in front of

the HEPA filter.

20 Version 26

3.3.5. HEPA Filter: Magnehelic Pressure Gauge

The LCC Series oven is equipped with a Magnehelic pressure gauge which measures the pressure in front of the HEPA filter (Figure 4). As the filter becomes dirty, pressure increases. Despatch recommends changing the filter when

the pressure is 1” w.c. greater than when the filter was first

installed (Refer to section 4.3 for filter replacement).

Since pressure can be affected by many factors involved in the installation, it is important to record the pressure of a new filter as a baseline. Recorded pressure readings allow for new readings to be periodically checked against this baseline. Use Table 2 for recording this information (See Section 8.1 for a blank worksheet).

For a nitrogen atmosphere oven, pressure readings also give an indication of the integrity of the seals. If the pressure recorded in Columns D or E decrease over time, inspect the oven seals.

Table 2. HEPA Filter Pressure Reading Worksheet.

8

With Purge and Maintain valves off for a nitrogen atmosphere oven. Cooling fan off for an air

atmosphere oven.

9

For a nitrogen atmosphere oven only.

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.

Stackable LCC/LCD Oven Owner’s Manual ASSEMBLY & SETUP

Warning!

The LCC door requires a Manual Override Key for use when power is OFF. The door and panel that require a tool to open are part of the safety system of the Stackable LCC/LCD Oven. Do not attempt to permanently mount the Manual Override Key.



Do not remove torx screw from door release mechanism. Manual Override Key cannot be permanently mounted.

Figure 5. Door Lock Manual Override Key (LCC/LCD/LLC/LLD).

Version 26 21

4. Assembly & Setup

Assembly and Setup provides directions for unpacking and installing your LCC/LCD.

4.1. Unpack & Inspect The LCC/LCD Oven

Remove all packing materials and thoroughly inspect the oven for any damage that might have occurred during shipment.

Note whether the carton and plastic cover sheet inside carton are still in good

condition

Observe all outside surfaces and corners of the oven for scratches and dents Check oven controls and indicators for normal movement, bent shafts, cracks, chips

or missing parts such as knobs and lenses

Check the door and latch for smooth operation (Figure 5) Check the filter carton for damage

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.

Despatch LCC1-16-3 Installation Manual

Specifications and Main Features

Frequently Asked Questions

User Manual