Revised format and updated to Protocol 3.
Version 4.
2 Version 1
Revision History—LCC/LCD2-14 Series
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.
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.
PREFACELCC/LCD2-14 Series Oven Owner’s Manual
4 Version 1
4.2.2.2. Air Atmosphere with Optional Water Cooling Model .................................. 26
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.
LCC/LCD2-14 Series Oven Owner’s Manual PREFACE
Version 1 5
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 LCC/LCD2-14 Series 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
5 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.
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.
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.
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
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.
LCC/LCD2-14 Series Oven Owner’s Manual ABOUT THIS MANUAL
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
Danger!
Failure to heed warnings in this instruction manual and on the
oven could result in personal injury, property damage or death.
Version 1 7
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 LCC/LCD2-14 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 factorytrained 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
LCC/LCD2-14 Series 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 LCC/LCD2-14 Series Oven Owner’s Manual
This icon signifies information that describes an unsafe
condition that may result in death, serious injury, or damage to
the equipment.
Danger!
Danger is the signal word used to indicate a hazardous
situation that, if not avoided, will result in death or severe
injury.
Warning!
Warning is the signal word used to indicate a hazardous
situation that, if not avoided, could result in death or severe
injury.
Caution!
Caution is the signal word used to indicate a hazardous
situation that, if not avoided, could result in moderate or minor
injury.
Notice
Notice is the signal word used to indicate a hazardous situation
that, if not avoided, could result in property damage.
This icon signifies supplemental important information.
LOG OUT
Bold, 10 point sans-serif typeface indicates a specific key or
button on screen to click.
Model
Atmosphere
Max Temp °C
Seals
LCC2-14
Air
260
Silicone
LCC2-14V-4
Air
260
Silicone Free
LCD2-14
Air
350
Silicone
LCD2-14V-4
Air
350
Silicone Free
LCC2-14N-4
Inert
260
Silicone
LCC2-14NV-4
Inert
260
Silicone Free
LCD2-14N-4
Inert
350
Silicone
LCD2-14NV-4
Inert
350
Silicone Free
LCC2-14A-4
Class A
260
Silicone
LCC2-14AV-4
Class A
260
Silicone Free
LCD2-14A-4
Class A
350
Silicone
LCD2-14AV-4
Class A
350
Silicone Free
8 Version 1
1.4. Conventions
1.5. Specifications
1.5.1. Model Characteristics
Table 1. LCC/LCD2-14 Series Oven Model Characteristics.
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.
LCC/LCD2-14 Series Oven Owner’s Manual ABOUT THIS MANUAL
Models
Chamber Size
inches (cm)
Capacity
ft3 (liters)
Overall Size
inches (cm)
Maximum
number of
Shelves
W* D H W D
H
LCC/LCD2-14
25.5
(64)
26
(66)
37
(94)
14
(396)
47.5
(121)
41.5
(105)
71
(180)
11
The LCC/LCD2-14 oven is not intended to process solvents or other
volatile or flammable materials. Oven forced exhaust is intended for
cooling purposes only on standard and inert (nitrogen) models.
Order an LCC/LCD2-14 oven with the Class A option to process
solvents or other volatile or flammable materials.
Models
LCC/LCD2-14
Maximum Load
(Lbs)
(KG)
400
181
Maximum Shelf Capacity
(Lbs)
(KG)
50
23
Recirculating fan
(CFM/LPS)
950/448
(H.P.)
1.5
Net weight (Approximate)
(Lbs)
955
(KG)
434
Shipping weight (Approximate)
(Lbs)
1050
(KG)
477
Exhaust fan
(CFM/LPS)
(HP)
85/40
0.03
Exhaust Opening Diameter
(Inch)
4
(mm)
101.6
*
Version 1 9
1.5.2. Dimensions
1.5.3. Capacities
Clear opening width is reduced by 1.5 inches (3.8cm) due to ¾ inch (1.9cm) shelf supports on each 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.
ABOUT THIS MANUAL LCC/LCD2-14 Series Oven Owner’s Manual
Models
Volts
Amps
Phase
Hertz
Heater (kW)
LCC/LCD2-14
208
50.5
3
50/60
16
240
44.5
3
50/60
16
380
21.6 3 50
12
415
25.2 3 50
16
480
22.2 3 60
16
Model
LCC/LCD2-14
Time to Temperature
(approximate
minutes)
(no load)
50°C – 100°C
3 min.
50°C – 200°C
9 min.
50°C – 260°C
15 min.
50°C – 350°C†
35 min.
Cooling Time to Temp
Minutes
(No Load)‡§
100°C – 65°C
41 min. (air atmos.)
15 min. (nitrogen atmos.)§
175°C – 65°C
82 min. (air atmos.)
20 min. (nitrogen atmos.)§
260°C – 65°C
95 min. (air atmos.)
25 min. (nitrogen atmos.)§
350°C – 65°C†
116 min. (air atmos.)
30 min. (nitrogen atmos.)§
Temperature
Uniformity at**
100°C
±1°C
175°C
±2°C
260°C
±3°C
350°C†
±3.5°C
Maximum Operating
Temperature
LCC
260°C
†
‡
§
**
10 Version 1
1.5.4. Power
If the line voltage for your LCC/LCD2-14 Series oven varies more than 10% from the oven
voltage rating, electrical components such as relays and temperature controls may operate
erratically. Power connection is performed by the user.
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
Table 2. Electrical Specifications.
1.5.5. Temperature
For LCD only, LCC 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 3 GPM (11 lpm), 13°C (55°F).
Uniformity can vary slightly depending on unit and operating conditions. Class 100 HEPA filtration will
limit ramp rates. Specifications are subject to change without notice.
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.
Uniformity figures are based on a nine-point test conducted in an empty oven after stabilization period.
LCC/LCD2-14 Series Oven Owner’s Manual ABOUT THIS MANUAL
Model
LCC/LCD2-14
LCD
350°C
Operating Range
w/20°C Ambient
LCC
50°C-260°C (air atmos.)
30°C-260°C (nitrogen atmos.)
LCD
50°C-350°C (air atmos.)
30°C-350°C (nitrogen atmos.)
Control Stability
±0.5°C
The LCC/LCD2-14A Class A option requires the exhaust fan be
wired ON at all times.
Danger!
LCC/LCD2-14A Class A ovens are designed for a specific
amount of solvent. Exceeding this amount could result in an
explosion. Do not process closed containers of any substance
or liquid in this oven because they may explode under heat. In
case of fire, leave door(s) as they are. Shut off electricity. Shut
off fuel. Call the fire department. Stay away.
Version 1 11
1.5.6. Capability
The standard LCC/LCD2-14 Series oven is not available for Class A flammable solvent
environments. However LCC/LCD2-14 Class A ovens are specifically designed for NFPA 86
Class A requirements in which flammable solvents are present. They include a pressure relief
panel, purge timer and exhaust fan. Please note the solvent handling capabilities and do not
exceed those capabilities.
The ovens have an explosion relief panel and purge interlock devices:
If the LEL (Lower Explosive Limit) is exceeded and an explosive mixture is ignited in the
oven, the explosion relief will rupture, preventing any more physical damage to the oven.
An airflow switch on the exhaust to verify exhaust fan is operating.
A purge timer preset to keep heater off until the purge period is complete. The preset purge
period guarantees four complete air exchanges to remove volatiles in the chamber before the
heater can be turned on.
Any failure of these devices will shut down the heater, preventing further processing until the
condition is remedied.
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.
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 1
2. Safety
2.1. Safety Information
Do not work on the LCC/LCD2-14 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
Machine lockout places the LCC/LCD2-14 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 LCC/LCD2-14 Series oven. An accidental start-up,
while working on the LCC/LCD2-14 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 LCC/LCD2-14 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
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.
2.1.2. Door and Panel
The door and rear panel on the LCC/LCD2-14 Series oven protect against hazards. Power is
required to open the door and the oven heater must be OFF when the door is open. Operation
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.
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 1 13
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 LCC/LCD2-14 Series oven. Do not open
the door while the machine is running.
The LCC/LCD2-14 is also equipped with a door switch which turns off the heater when the door
is opened.
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 the LCC/LCD2-14 Series oven are strictly
forbidden. Never modify any electrical circuits. Unauthorized modifications can impair the
function and safety of the LCC/LCD2-14 Series oven.
2.4. Fire
Keep the LCC/LCD2-14 Series oven clean and free of scrap materials, oil or solvents to prevent
the possibility of fire.
1. Leave door as is.
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.
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.
Figure 1. Main
Disconnect Switch.
14 Version 1
2. De-energize the machine immediately by turning OFF the DISCONNECT SWITCH (if
applicable).
3. Turn off the remote main disconnect (customer supplied disconnect).
4. Shut off fuel.
5. Call the fire department.
6. Stay away.
2.5. Equipment Lockout Requirements
To prevent injury or equipment damage during inspection or repair, the LCC/LCD2-14 Series
oven must be locked out.
2.5.1. Main Disconnect Switch
When a risk of personal injury or damage to the LCC/LCD2-14 Series oven exists, turn OFF the
DISCONNECT SWITCHon the front of the oven (Figure 1). The DISCONNECT SWITCH 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.
To check door and latch for smooth operation, use a hollow point torx
tip tool and rotate 90 degrees counterclockwise the manual override in
the safety switch. It must be turned back to the locked position to
allow electrical operation.
Warning!
The LCC/LCD2-14 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 LCC/LCD2-14 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 2. Door Lock Manual Override Key (LCC/LCD).
Version 1 15
2.5.2. Manual Unlock
If a power failure occurs insert a torx tip tool (provided) and rotate 90 degrees counterclockwise
to allow the chamber door to open. The tool must be turned back to the locked position to allow
electrical operation again.
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 OPERATIONLCC/LCD2-14 Series Oven Owner’s Manual
Figure 3. LCC/LCD2-14 Series Oven.
16 Version 1
3. Theory of Operation
3.1. The LCC/LCD2-14 Series Oven
The LCC/LCD2-14 Series oven (Figure 3), a class 100
clean room oven, offers HEPA (High Efficiency
Particulate Air) filtration for processes where
minimized contamination is essential. Forced
convected airflow provides rapid uniform distribution
of heat. 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. A magnehelic
differential pressure gauge monitors pressure drop
across the HEPA filter.
The oven operator interface is located on the hinged
control panel at the front of the oven (Figure 3). Power
components, fuse blocks and motor starters are located
on the equipment panel, behind the hinged control
panel, for easy access (Figure 8). The transformer and
the heater SSR’s are located in the lower compartment
with the recirculation and exhaust/cooling motors.
Electrical components are either touch-proof or are
shielded with Lexan® material to prevent accidental
exposure during maintenance and troubleshooting.
The cooling/exhaust fan is controlled on/off by an event
relay in the Protocol 3 controller. 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 oven has a type 304-2B 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 three inch centers.
The optional Despatch Protocol Manager software is used to enable customer PC control of an
oven. Despatch Protocol 3 controllers may be networked together with a Modbus communication
option when multiple ovens are operated.
3.1.1. LCC/LCD2-14 Oven Operation Details
The LCC/LCD2-14 ovens are available with air, inert (nitrogen) or Class A atmospheres. LCC
models are rated up to 260°C, and LCD models are rated up to 350°C. Silicone free construction
is available on all models.
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.
LCC/LCD2-14 Series Oven Owner’s Manual THEORY OF OPERATION
Danger!
LCC/LCD2-14A Class A ovens are designed for a specific
amount of solvent. Exceeding this amount could result in an
explosion. Do not process closed containers of any substance
or liquid in this oven because they may explode under heat. In
case of fire, leave door(s) as they are. Shut off electricity. Shut
off fuel. Call the fire department. Stay away.
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.
The exhaust fan of a Class A oven must remain on at all times.
Version 1 17
The LCC2-14 Series ovens have an electrical door lock that prevents the operator from opening
the chamber door when a cycle is in process. The door lock is de-energized at the end of a cycle
or when power is off.
The nitrogen models have a Type 316 stainless steel water coil which permits rapid cool-down
and lower temperature operation. The nitrogen oven comes with a flowmeter for adjusting purge
rate, a 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.
3.1.1.1. LCC/LCD2-14A (Class A) Operation Details
The exhaust fan event relay is hardwired in the ON position for Class A ovens to remove
volatiles. The exhaust fan must remain on at all times. A water cooling option is also available for
faster cool-down times.
The LCC/LCD2-14A Class A oven is specifically designed for Class A NFPA 86 requirements in
which flammable solvents are present. They include a pressure relief panel, purge timer and
exhaust fan. Please note the solvent handling capabilities and do not exceed those capabilities.
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 OPERATIONLCC/LCD2-14 Series Oven Owner’s Manual
Figure 4. Protocol 3 Operator Interface.
18 Version 1
3.2. The Protocol 3 Controller
The Protocol 3 is a microprocessor based digital temperature controller designed for simple and
flexible oven operation (Figure 4). The Protocol 3 controller operates as a dual-functioning
controller/High Limit instrument. The control portion utilizes a time-proportioning voltage signal
to control heating devices with minimal temperature fluctuations.
The High Limit portion protects the product and/or the oven from overheating. If the product
being processed has a critical high temperature limit, the High Limit setpoint should be set to a
temperature somewhat below the temperature at which the product could be damaged. If the
product does not have a critical high temperature limit, the High Limit setpoint should be set 5 to
15 degrees higher than the maximum programmed setpoint at which the oven will operate.
The Protocol 3 controller provides three primary operating modes:
Manual: Oven operates continuously at a fixed temperature until turned off.
Timer: Oven operates at a fixed temperature for a user-selected time period, and then
automatically turns off.
Profile: Temperatures increase or decrease as defined by 255 segments that can be allocated
to 64 ramp and soak profiles. The profiles can be linked to provide additional temperature
combinations.
Review the Protocol 3 Controller Owner’s Manual for more information.
3.3. HEPA Filters
The LCC/LCD2-14 Series ovens use HEPA (High Efficiency Particulate Air) filters to limit
particulate size in the work chamber to 0.3 microns or less. Two different types of filters are
typically used. While both filters are high-temperature filters in that they are designed for use in
thermal processing equipment, the “standard” HEPA filter is rated to 260°C ( 500°F) while the “high-temperature” HEPA filter is rated to 350°C (662°F).
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.
LCC/LCD2-14 Series 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.
Despatch does not recommend using D.O.P. or other organic challenge
agents.
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 5. This Side Up
Graphic.
Version 1 19
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 contained in the filter.
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 5). A filter unit is placed
in the carton so the pleated folds are vertical (running from top to
bottom), versus side to side.
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.
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 OPERATIONLCC/LCD2-14 Series Oven Owner’s Manual
Caution!
Despatch does not recommend D.O.P. filter testing.
20 Version 1
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 180°C, at a constant temperature
The filter is burned off at 260°C for 48 hours before running
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.
These and other organic challenge agents present a fire hazard for LCC/LCD2-14 Non-Class A
(NFPA 86) ovens. 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-off 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. Please consult factory for
expected levels.
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 4.3).
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.
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.
LCC/LCD2-14 Series Oven Owner’s Manual THEORY OF OPERATION
Figure 6. Magnehelic Pressure
Gauge Measures Pressure in Front
of the HEPA Filter.
Version 1 21
3.3.3.4. HEPA Filter Burn-off Process
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 consistently under
180°C.
3.3.4. HEPA Filter Unit Replacement
Periodically replace 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.
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 6). 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 6 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.
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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 OPERATIONLCC/LCD2-14 Series Oven Owner’s Manual
Figure 7. LCC/LCD2-14 Series Optional
Beacon Light.
22 Version 1
3.4. Optional Beacon Light
The LCC/LCD2-14 Series beacon light option provides
visual cycle process indication to the operator (Figure 7).
The beacon light option is on the front control panel of both
the LCC/LCD2-14PT-3 Pass-Through oven and the standard
LCC/LCD2-14 oven.
The beacon light provides visual indication of the cycle status
as follows:
Green: Cycle in process
Yellow: Standby. Operator has unloaded product. Oven waiting for next cycle.
Red: Error or fault condition.
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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.
LCC/LCD2-14 Series Oven Owner’s Manual ASSEMBLY &SETUP
Danger!
LCC/LCD2-14A Class A ovens are designed for a specific amount of
solvent. Exceeding this amount could result in an explosion. Do not
process closed containers of any substance or liquid in this oven
because they may explode under heat. In case of fire, leave door(s) as
they are. Shut off electricity. Shut off fuel. Call the fire department. Stay
away.
To check door and latch for smooth operation, use a hollow point torx tip tool and
rotate 90 degrees counterclockwise the manual override in the safety switch. It
must be turned back to the locked position to allow electrical operation.
Version 1 23
4. Assembly & Setup
Assembly and Setup provides directions for unpacking and installing your LCC/LCD2-14 Series
oven.
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 the condition of the carton and plastic cover sheet inside the carton.
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.
Check the filter carton for damage
4.1.1. If Damaged During Shipping
If damage occurred during shipping:
1. Contact the shipper immediately and file a written damage claim.
2. Contact Despatch Industries (1-800-473-7373 or 1-952-469-8230 or service@despatch.com)
to report your findings and to order replacement parts for those damaged or missing. Send a
copy of your filed damage claims to Despatch Industries (Despatch Industries, 8860 207th Street, Lakeville, MN 555044, USA).
3. Check the packing list to ensure you received all the specified components of the oven
system. If any items are missing, contact Despatch Industries to have missing products
forwarded to you.
4. Complete the warranty card and mail it to Despatch within 15 days after receipt of the
equipment.
4.2. Setup The LCC/LCD2-14 Series Oven
4.2.1. Select Oven Location
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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.
ASSEMBLY &SETUPLCC/LCD2-14 Series Oven Owner’s Manual
Connection
LCC/LCD Air Atmosphere models
with optional water-cooling
LCC/LCD Nitrogen Atmosphere
models with standard water-cooling
NITROGEN
INLET
Clean Dry Air Inlet (70-80 psi
(4.83-5.52 bar))
Used to purge water from coil
prior to heating oven
3/8” NPT female brass
connections provided
Nitrogen Inlet (70-80 psi (4.83-5.52
bar))
Purge nitrogen, clean dry air and
water from coil prior to heating the
oven
3/8” NPT female brass connections
provided
WATER
OUTLET
During cooling cycle, water flows through the water coil and out this
connection
3/8” NPT female brass connections provided
Piping must be rated for up to125°C (257°F)
Warning!
Do not use the oven in wet, corrosive or explosive atmospheres
unless this oven is specifically designed for a special
atmosphere.
The rear of a LCC/LCD2-14 Series Class A oven must have a minimum
of six inches of clearance between the oven and any wall for explosion
relief.
24 Version 1
4.2.1.1. Oven Placement Requirements
The LCC/LCD2-14 Series oven has a four inch diameter exhaust opening.
The oven may be placed next to another cabinet on its right, or next to another oven, with
three-quarters of an inch (19mm) clearance (measure with door open).
Exhaust air may reach 260°C on the LCC version and 350°C on the LCD version. Make sure
exhaust piping materials can withstand these temperatures.
LCC/LCD2-14 oven exhaust opening is on the rear of the oven.
Plumb and level the oven to assure proper heat distribution and operation of all mechanical
components.
Leave room at the oven sides and rear for maintenance.
The rear of the oven may be placed against a wall (with proper spacing).
4.2.2. Oven Utility Connections
Utility connections vary slightly on different LCC/LCD models. Table 3 lists the connection
purposes and parameters. Refer to Figure 8 for a visual reference.
Table 3. Utility Connections (Refer to Figure 8).
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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.
LCC/LCD2-14 Series Oven Owner’s Manual ASSEMBLY &SETUP
Connection
LCC/LCD Air Atmosphere models
with optional water-cooling
LCC/LCD Nitrogen Atmosphere
models with standard water-cooling
WATER
DRAIN
At the end of a cooling cycle, Nitrogen or Clean Dry Air is purged through
the water coil. Water and pressurized nitrogen/air exit this connection for 30
seconds. Must be connected to gravity style drain (no backpressure).
3/8” NPT female brass connections provided
Piping must be rated for up to125C (257F)
WATER
INLET
Water Inlet for cooling
3/8” NPT female brass connections provided
Requires 3 GPM (11 LPM) flow at 13°C (55°F) to meet published cooling
rates
Maximum Pressure 100 PSI (6.89 Bar)
Nitrogen pressure supplied should run at 70 psi (4.83 bar) but
not more than 80 psi (5.52 bar). Check for leaks.
Nitrogen/Clean
Water Inlet
Water Drain
Water Outlet
Exhaust
Version 1 25
Dry Air Inlet
Figure 8. LCC/LCD2-14 Utility Connections.
4.2.2.1. Nitrogen With Water-Cooled Models
1. Connect nitrogen supply line to NITROGEN INLETon the side of the oven (Figure 8).
2. Install water connection for cooling coils to WATER INLET (Figure 8).Verify the valve on
the flowmeter is turned OFF, that is, fully clockwise.
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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.
ASSEMBLY &SETUPLCC/LCD2-14 Series Oven Owner’s Manual
Water pressure supplied to the oven must not exceed 100 psi
(6.89 bar). Despatch recommends installing a regulator to
prevent surging.
Caution!
Failure to allow air to bleed from the flowmeter may damage the
flowmeter. Bleed air from the flowmeter after every instance of
shutting off the water supply.
WATER DRAIN must be left open-to-atmosphere. Make closedloop connections using WATER OUTLET (Figure 8).
Warning!
Never allow WATER DRAIN to be plugged. A hot oven generates
a small amount of steam when the water is first turned on.
Steam can burn skin.
Caution!
Design the drain system to prevent operator injury from high
temperature or pressure buildup. Piping must be able to
withstand short periods of up to 343°C (650°F). Insulate drain
lines and/or install warning labels stating the potential high
temperature or pressure hazard.
26 Version 1
3. Check for leaks by slowly opening the valve on the flowmeter and allowing any air to bleed
out.
4. Adjust the flowmeter to the recommended 3 gpm (11.4 lpm).
5. Make the drain connection at the rear of the oven. Note there are two drain connections:
WATER OUTLET and WATER DRAIN (Figure 8).
4.2.2.2. Air Atmosphere with Optional Water Cooling Model
1. Install water connection for cooling coils to WATER INLET (Figure 8).Verify the valve on
the flowmeter is turned OFF, that is, fully clockwise.
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.
LCC/LCD2-14 Series Oven Owner’s Manual ASSEMBLY &SETUP
Water pressure supplied to the oven must not exceed 100 psi
(6.9 bar). Despatch recommends installing a regulator to prevent
surging.
Caution!
Failure to allow air to bleed from the flowmeter may damage the
flowmeter. Bleed air from the flowmeter after every instance of
shutting off the water supply.
WATER DRAIN must be left open-to-atmosphere. Make closedloop connections using WATER OUTLET (Figure 8).
Warning!
Never allow WATER DRAIN to be plugged. A hot oven generates
a small amount of steam when the water is first turned on.
Steam can burn skin.
Caution!
Design the drain system to prevent operator injury from high
temperature or pressure buildup. Piping must be able to
withstand short periods of up to 343°C (650°F). Insulate drain
lines and/or install warning labels stating the potential high
temperature or pressure hazard.
Compressed air supplied should run at 70 psi (4.83 bar) but not
more than 80 psi (5.52 bar). Check for leaks.
Version 1 27
2. Check for leaks by slowly opening the valve on the flowmeter and allowing any air to bleed
out.
3. Adjust the flowmeter to the recommended 3 gpm (11.4 lpm).
4. Make the drain connection at the side of the oven. Note there are two drain connections:
WATER OUTLETand WATER DRAIN (Figure 8).
5. Connect the compressed air supply line to the DRY AIR inlet.
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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.
ASSEMBLY &SETUPLCC/LCD2-14 Series Oven Owner’s Manual
Connection
LCC/LCD2-14
Exhaust Opening Diameter
4.0” (10.16cm)
Exhaust Fan
85
Maximum Temperature
(LCC Series)
(LCD Series)
260°C
350°C
Notice
Do not cover cabinet cooling fan. The cooling fan is required for
lower compartment ventilation.
Make sure exhaust piping materials can withstand maximum
exhaust temperatures (Table 4).
Cooling Fan
Exhaust Opening
28 Version 1
4.2.3. Exhaust Connections
The LCC/LCD2-14 Series oven exhaust port is located on the rear of the oven (Figure 9). Table 4
lists the requirements for the exhaust stack for the LCC/LCD2-14 Series oven.
Figure 9. Exhaust Connections.
Table 4. Exhaust Connection Requirements.
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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.
LCC/LCD2-14 Series Oven Owner’s Manual ASSEMBLY &SETUP
Danger!
Contact with energized electrical sources may result in serious
injury or death. All wiring to be completed by properly trained
and licensed personnel.
The oven must be hardwired directly to the disconnect switch
on the equipment panel (Figure 11).
Danger!
All grounding and safety equipment must be in compliance with
applicable codes, ordinances and accepted safe practices.
Figure 10. Line Connection.
Version 1 29
4.2.4. Wiring & Power Connections
A conduit fitting for customer power line is located on the rear left of
the oven (Figure 10).This conduit runs up to the front control panel,
where wires can terminate at the disconnect switch.
Locate the conduit and run power (Figure 10 and Figure 11).
Consult electrical drawings included with the oven for details
(Section 8.4).
Connect the line voltage power to the disconnect switch labeled
LINE CONNECTIONS (Figure 11).
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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.
ASSEMBLY &SETUPLCC/LCD2-14 Series Oven Owner’s Manual
Power
Rear of Oven
Connect Power to
Line Connections
Figure 11. Conduit and Disconnect Switch/Line Connections.
30 Version 1
Disconnect
Switch Labeled
Conduit from
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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.
LCC/LCD2-14 Series Oven Owner’s Manual ASSEMBLY &SETUP
Each LCC/LCD2-14 oven uses one of two types of HEPA filters,
depending on the oven’s maximum temperature. Ovens that can
be heated to 260°C (500°F) use the Standard HEPA filter. Ovens
that can be heated to 350°C (662°F) use the High-Temperature
HEPA filter.
However, customers requiring a higher ramp rate while
operating equipment below 260°C (500°F) may still choose to use
the high-temperature HEPA filter:
Make certain power is disconnected from the oven before
removing or replacing the HEPA filter. Observe all applicable
safety procedures.
Caution!
The HEPA filter is fragile. Take care to avoid damage during
installation. If a filter unit is dropped, whether in the carton or
not, examine it carefully for damage.
Caution!
The HEPA filter must be installed so that unfiltered air cannot
leak past the unit.
In general, defer to installation instructions provided by the filter
manufacturer.
Version 1 31
4.3. HEPA Filter Installation
Not all LCC/LCD2-14 ovens come equipped with a HEPA filter. This HEPA filter installation
section applies only to ovens designed for ISO Class 5 (Class 100) use, whichare equipped with
a HEPA filter. For a complete explanation of model numbers, refer to Section 1.5.1. Two
different types of filters are typically used. While both filters are high-temperature filters in that
they are designed for use in thermal processing equipment, the “standard” HEPA filter is rated to
260°C ( 500°F) while the “high-temperature” HEPA filter is rated to 350°C (662°F).
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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.
ASSEMBLY &SETUPLCC/LCD2-14 Series Oven Owner’s Manual
Sweep floor clear of nuts, bolts and other protrusions which
may damage the unit.
Do not drop or jar the filter carton.
Notice
Do not attempt to repair the damaged filter unit—particularly the
medium. Any unit so repaired must be retested to assure that
hidden damage does not exist which might reduce filtering
efficiency. Repair and retest is not economical for most users.
Figure 12. Example HEPA Filter
(Silicone-free)
32 Version 1
4.3.1. HEPA Filter Handling and Inspection
1. Remove new filter from carton
a. Place carton on floor.
b. Tilt the carton on one corner. Handle the carton at opposing corners.
c. Remove sealing tape and fold back flaps of carton.
d. Gently upend the filter to place the exposed end of the filter on the floor. Do not jar the
filter.
e. Pull the carton from the filter unit. Be careful to not pull the filter from the carton.
2. Inspect the filter.
a. Visually inspect the new gasket (s) for damage during handling.
b. Use a strong lamp to examine the exposed areas of both faces for evidence of breaks,
cracks, or pinholes (Figure 12). If a strong lamp is unavailable, use a flashlight in a
darkened room.
c. Look for visible defects with the light projected along the full length of each channel
created by the separators. Translucent spots may
not necessarily indicate holes or cracks but may
simply be variations in thickness of the filter
medium.
d. Check that the adhesive seal around the filter unit
faces are complete and unbroken.
e. Check frame corner joints for adhesive sealing
and tightness.
f. Check that gaskets are cemented firmly to the
filter frame and that gasket pieces are undamaged
and butted or mated at the joints.
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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.
LCC/LCD2-14 Series Oven Owner’s Manual ASSEMBLY &SETUP
Opened pleats in the filter media are normal and result from the
tempering process.
Danger!
Make certain power is disconnected from the oven before
removing or replacing the HEPA filter.
Loosen screws to remove the entire inner
casing assembly as a single unit.
Version 1 33
3. Pull shelves from the oven and set aside.
Figure 13. LCC/LCD2-14 Side Panel.
4. Loosen screws at sides and top of supply duct/shelf supports on right side of chamber (Figure
13).
a. Pull out the shelf support/duct as a single unit and set it aside.
5. Remove the brass nuts and washers from the rods that are holding the filter frame in place.
a. Reuse these nuts to hold the filter in place.
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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.
ASSEMBLY &SETUPLCC/LCD2-14 Series Oven Owner’s Manual
Figure 14. Install HEPA high-temperature filter.
34 Version 1
b. Discard the old filter in accordance with your company’s disposal policies.
c. Remove and discard the conduit spacers from the rods behind the filter frame.
6. Place the new filter in the oven:
a. For the High-temperature HEPA filter:
i. Place the filter with the triangular gasket set against the oven wall and the
glass braid set against the clamping plate (Figure 14).
ii. Tighten the nuts until the triangular gasket is compressed to a thickness of
0.16 inch (0.4 cm).
b. For the Standard HEPA filter:
i. Place the filter with the gasket set against the oven wall (Figure 15).
ii. Tighten the four nuts alternately for a torque of 28 (+/- 3 in-lbs.).
iii. Be careful not to over tighten
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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.
LCC/LCD2-14 Series Oven Owner’s Manual ASSEMBLY &SETUP
Figure 15. Install HEPA standard filter.
Version 1 35
7. Reinstall filter frame using the nuts removed earlier.
a. Make sure the filter face is tight against the inside perimeter of the frame on all sides.
8. Reinstall the brass nuts and washers to tighten the filter frame down.
a. Tighten the nuts alternately for even tightness.
i. Be careful not to over tighten. Correct installation torque is 28 +/- 3 in-lbs (3.16 ±
.33 N-m).
ii. Be sure to compress the gasket evenly and equally at all points with the filter frame
completely covering the opening.
9. Reinstall shelf support/duct assembly using the screws removed earlier.
10. Reinstall oven shelf.
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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.
ASSEMBLY &SETUPLCC/LCD2-14 Series Oven Owner’s Manual
While the high-temperature filter has undergone tempering
treatment at the factory, smells and/or fumes may be released
during the first use at temperature.
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.
36 Version 1
4.3.2. HEPA Filter Burn-Off
4.3.2.1. HEPA Filter Burn-Off Process
The burn-off process takes place in any equipment where a new HEPA filter is used at
temperatures above 180°C (356°F). Expect smoke, possibly a pungent odor and a light residue on
interior surfaces. This results from oxidation of the binder. Most of the binder will leave the filter
after running at a temperature of 260°C (500°F) for 48 hours. Check the oven for particles or the
exhaust for smoke and odor to determine that the process is finished.
4.3.2.2. Location of HEPA Filter Burn-Off Process
Select a location for the burn-off process where generated smoke and odor will be ventilated with
the least amount of interruption and inconvenience. Ideally this will be in the final location for the
oven. However, it may be a receiving dock, some well-ventilated space or even outside if the
weather is acceptable. If this location is a very clean area, pay special attention to an exhaust
hook-up that fully captures the smoke and odor produced. The post burn-off cleaning (that is,
oven wipe down) may also generate dust.
4.3.2.3. Recommended HEPA Filter Burn-Off Process
1. Locate the equipment exhaust opening where chamber air is being expelled.
a. If the oven filter is burned off in a clean area, be sure to handle the equipment exhaust
appropriately.
b. If the equipment is large and the exhaust stack is a permanent service connection, connect
the equipment and exhaust stack before the burn-off process.
c. If the equipment is small with no permanent exhaust duct required, arrange a temporary
connection out of the clean area that will handle the maximum temperature of the
equipment. Direct the smoke and odor outside, or to a highly ventilated area.
2. Set the temperature control at the maximum process temperature.
a. Silicone: Ramp at 1.25°C/min to 260°C and soak for 48 hours.
b. Media Pack: Ramp at 1.25°C/min to 260°C and soak for 48 hours.
c. Termikfil: Ramp at 5°C/min to 350°C and soak for 48 hours.
3. Start the fan after making the electrical power connections.
4. Energize the equipment heater.
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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.
LCC/LCD2-14 Series Oven Owner’s Manual ASSEMBLY &SETUP
If the equipment must be moved after the burn-off process, use
considerable care.
The binder which strengthened new filters is now burned-off
and the media is very fragile.
Rough handling of either the filter alone or the equipment
with the filter installed is not recommended as it may tear the
media and lead to reduced filter efficiency.
Removal of the filter after heating can also result in damage
to the frame seal, and is only recommended when replacing
the filter.
Determine the cause of the
excessive temperature before
resetting the High Limit
controller.
Figure 16. Typical High Limit controller.
Note RESET button on right.
Version 1 37
a. Use enough fresh air to remove the smoke, while still being able to achieve and maintain
the necessary temperature.
b. The completion of the burn-off period should be based on the particle level in the oven or
smoke-free exhaust and minimal odor level.
c. Check the filter hold-down nuts after burn-off and tighten as necessary.
d. For best oven particle control, this step should be repeated on a regular basis.
4.3.3. Filter High Limit Controller
The LCC/LCD2-14 Series have a redundant High Limit device to protect the HEPA filter (Figure
16). The sensor for the High Limit controller is located before the air inlet of the HEPA filter.
The High Limit device is located in the lower compartment of the oven. If oven temperature
exceeds the factory set Filter High Limit temperature, the High Limit controller will trip, shutting
down the heater and protecting the HEPA filter.
4.3.3.1. Reset the High Limit Controller
Determine the cause of the excessive temperature before resetting the High Limit controller.
Under normal operating conditions the Filter High Limit controller should never trip.
To reset the High Limit controller:
1. Remove the access panel to the lower compartment.
The High Limit is located next to the transformer.
2. Press the RESET button on the High Limit controller.
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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.
See the MIC1162 reference manual for the operation
of this High Limit.
Users and operators of this oven must comply with operating
procedures and training of operating personnel as required by
the Occupational Safety and Health Act (OSHA) of 1970, Section
5 and relevant safety standards, and 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.
Danger!
LCC/LCD2-14A Class A ovens are designed for a specific
amount of solvent. Exceeding this amount could result in an
explosion. Do not process closed containers of any substance
or liquid in this oven because they may explode under heat. In
case of fire, leave door(s) as they are. Shut off electricity. Shut
off fuel. Call the fire department. Stay away.
Despatch Industries cannot be responsible for either the
process or process temperature used, or for the quality of the
product being processed. It is the responsibility of the
purchaser and operator to see that the product undergoing
processing in a Despatch oven is adequately protected from
damage.
Carefully following the instructions in this manual will help the
purchaser and operator in fulfilling that responsibility.
Caution!
Always place loads on the shelves provided to avoid possible
uneven heating and damage to the oven.
38 Version 1
5. Operation
5.1. Load Oven
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.
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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.
Do not use flammable solvent or other flammable material in this
oven if it is not Class A. Do not process closed containers of any
substance or liquid in this oven because they may explode under
heat.
For LCC/LCD2-14 Class A ovens, the purge timer is preset with
the time listed on the nameplate at the factory.
Version 1 39
The two shelves are designed to be pulled out about halfway without tipping. Do not overload the
shelves. 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
□ 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.
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.
For Optional Beacon Light-equipped Units Only: The amber
(center) beacon light will illuminate, indicating that the oven is
ready to receive work to be processed (Figure 7).
For LCC/LCD2-14 Class A ovens: Once the power switch is turned
one and the recirculation fan and exhaust fan are turned on, the
airflow switch will actuate and the purge timer will begin timing.
The heater will not turn on and the oven will not begin heating
until the purge period is complete.
During the process cycle the door is locked. To unlock the door
press STOP or remove power from oven using the DISCONNECT
SWITCH.
Figure 17. Power the LCC/LCD2-14 Oven.
40 Version 1
5.3. Operating Procedure
5.3.1. Start The LCC/LCD2-14 Oven
1. Turn the yellow/red DISCONNECT SWITCHto ON (Figure 17).
2. Press the POWER for ON.
a. The door remains unlocked.
3. The heater is wired in series with the door switch. The door must be completely closed and
locked to activate the heater.
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.
LCC/LCD2-14A Class A ovens are designed for a specific amount of
solvent. Exceeding this amount could result in an explosion. Do not
process closed containers of any substance or liquid in this oven
because they may explode under heat. In case of fire, leave door(s) as
they are. Shut off electricity. Shut off fuel. Call the fire department.
Stay away.
Figure 18. Class A Nameplate Example.
Version 1 41
5.3.2. LCC/LCD2-14 Class A Oven Operation
1. Verify the purge time with the time listed on the nameplate (Figure 18).
2. Turn the yellow/red DISCONNECT SWITCHto ON (Figure 17).
3. Press the POWER for ON.
4. Close the main disconnect switch.
5. Press the STARTpush button.
6. Start the profile. The exhaust fan will start, the airflow
switch will actuate, and the purge timer will begin
timing.
7. When the purge period is complete, the oven will
begin heating.
5.3.3. Working with Protocol 3 Operating Modes
Refer to the Protocol 3 Controller Owner’s Manual for specific information for working with the
controller.
5.3.4. Sequence of Operation for LCC/LCD2-14 Ovens Equipped with
Optional Beacon Light
1.After starting the oven (refer to Section 5.3.1), the Protocol 3 controller initializes.
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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.
The amber beacon light (Error! Reference source not found.)
ill be ON (steady) until the profile is started (at the completion of
Step 5).
After pressing Run, the display changes from Stop to Run.
Segment time remaining and Current Segment number will
display.
Press Run at any time to active the Profile Mode.
42 Version 1
a. The oven should be idle, empty, with the door closed and awaiting the next lot for
processing.
b. The Protocol 3 Controller should not be running a profile.
2. Open the oven door.
3. Place the product on the shelf in the oven.
4. Close the oven door.
5. Run the desired profile with the Protocol 3 Controller.
a. Press Select until Profile is displayed.
b. Press ▲ or ▼ to display the desired profile.
c. Press Run to start the Profile Mode.
6. At this point, the oven profile cycle is in process and the door is locked.
a. The green beacon light is ON (steady), the amber beacon light is off.
b. When the process is complete, the amber beacon should be ON, and the door is
unlocked.
7. Close the oven door to complete the process cycle. The oven is ready for the next lot.
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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.
Refer to the Protocol 3™ Controller Owner’s Manual for more
information on programming event outputs.
Press Run at any time to activate the
Profile Mode.
Danger!
Suffocation can occur in a nitrogen-atmosphere oven chamber if
it is not thoroughly purged with room air before a person goes
inside it.
Before entering an oven chamber run the oven for at least five
minutes with the nitrogen (or any other inert gas) turned off,
doors open and recirculation fan running.
Do not work inside oven with the doors closed if you have not
purged the chamber with nitrogen (or any other inert gas) first.
Version 1 43
5.3.5. Sequence of Operation for Ovens Equipped for LCC/LCD2-14 Inert
Atmosphere Oven
1. After starting the oven (Section 5.3.1), the Protocol 3 controller initializes.
2. The oven should be idle, empty, with the door closed and awaiting the
next lot for processing.
3. The Protocol 3 Controller should not be running a profile.
4. Open the oven door.
5. Place the product on the shelf in the oven.
6. Close the oven door.
7. Run the desired profile with the Protocol 3 Controller.
a. Press Select until Profileis displayed.
b. Press▲or ▼ to display the desired profile.
c. Press Run to start the Profile Mode.
8. The first segment of the program is the PURGE MODE.
a. Set the nitrogen flow meter (Figure 19) to 300-350 scfh.
b. This program energizes the purge solenoid valve.
9. The second segment is the MAINTAIN MODE:
a. The purge solenoid valve is de-energized and the maintain solenoid is energized to
maintain the nitrogen level to less than the purge level.
b. Adjust the needle valve located in the front bottom of the oven (Figure 20). Leave the
maintain valve energized as long as the nitrogen level is maintained.
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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.
Both the LCC/LCD2-14 oven and the LCC/LCD2-14PT-3 Pass-Through oven
have a disconnect switch on the front control panel door.
Figure 20. Adjust Nitrogen needle valve (in compartment beneath oven).
Figure 21. Main
Disconnect Switch.
44 Version 1
10. The third and final segment is the COOLDOWN MODE. In Cooldown mode, water valves
are energized to bring the chamber to a safe unloading temperature.
a. Set water cooling flow meter to 3 GPM (11 LPM), and adjust if necessary.
b. Water cooling flowmeter is located on the lower left side of the oven.
5.3.6. Main Disconnect and Manual Unlock
5.3.6.1. Main Disconnect Switch
This disconnect switch (Figure 21) is connected to the load break switch
behind the panel that disconnects or connects power from the main line.
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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.
The LCC/LCD2-14 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 LCC/LCD2-14 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.
Version 1 45
5.3.6.2. Manual Unlock
If a power failure occurs insert a torx tip tool (provided) and rotate 90 degrees counterclockwise
to allow the chamber door to open. The tool must be turned back to the locked position to allow
electrical operation again.
Figure 22. Door Lock Manual Override Key (LCC/LCD).
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.
MAINTENANCELCC/LCD2-14 Series Oven Owner’s Manual
Danger!
Disconnect all power sources before making repairs. Contact
with energized electrical sources may result in serious injury or
death.
Danger!
For LCC/LCD2-14A Class A ovens: Do not allow flammable
solvents, combustibles, or other organic material to accumulate
in Class A ovens, as this could lead to fire or explosion,
particularly if the maximum solvent rating of the oven is
exceeded.
46 Version 1
6. Maintenance
Do not attempt any service on this oven before opening the main power disconnect switch.
6.1. Checklist
Keep equipment clean. Gradual dirt accumulation retards airflow. A dirty oven can result in
unsatisfactory operation such as unbalanced temperature in the work chamber, reduced
heating capacity, reduced production, overheated components, and the like. Keep the walls,
floor and ceiling of the oven work chamber free of dirt and dust. Floating dust or accumulated
dirt may produce unsatisfactory work results. Keep all equipment accessible. Do not permit
other materials to be stored or piled against it.
Protect controls against excessive heat—particularly controls, motors or other equipment
containing electronic components. Temperatures greater than 50°C (122°F) should be
avoided.
Establish maintenance and checkup schedules. Do this promptly and follow the schedules
faithfully. Careful operation and maintenance will be more than paid for in continuous, safe
and economical operation.
Maintain equipment in good repair and make repairs immediately to avoid costly delays.
Practice safety. Make it a prime policy to know what you are doing before you do it. Make
caution, patience, and good judgment the safety watchwords for the operation of your oven.
Inspect oven seals if pressure readings decrease over time (Refer to Section 3.3.5 as well as
Table 6, Columns D and/or E)
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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.
LCC/LCD2-14 Series Oven Owner’s Manual MAINTENANCE
Preventive
Maintenance
(Refer to Section)
Daily
Weekly
Monthly
Every
Three
Months
Every
Six
Months
Annually
As
Needed
General
Avoid placing load
too close to supply
duct (5.1)
X
Visually inspect for
dirt, debris and free
movement of parts
and controls.
X
Clean as needed
X
Inspect door seals
for proper seating,
damage and/or
tears
X
Inspect door
operation. Doors
should open and
close securely,
without jerking or
slamming.
X
Check Main
Disconnect Switch
(2.5.1)
X
Time to temperature:
record heating times
for similar loads. If
heating times are
slowing, it could
indicate a need for
maintenance.
X
Ventilation
Inspect HEPA filter
(if equipped)
installation direction
(4.3)
X
Inspect HEPA filter
(if equipped) (6.4.1)
X
Electrical
Check High limit
controller (6.6)
X
Version 1 47
6.2. Maintenance Schedule
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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.
Clean quickly for maximum surface protection.
Using water that contains chlorine or hydrochloric acid to clean
may damage the oven. Choose a neutral cleaning agent
instead.
Warning!
Do not clean oven without first disconnecting power.
48 Version 1
6.3. Lubrication
Fan motor bearings are permanently lubricated. All door latches, hinges, door operating
mechanisms, bearing or wear surfaces should be lubricated to ensure easy operation.
6.4. HEPA Filter Replacement
Refer to Section 4.3 for filter replacement.
6.4.1. Routine HEPA Filter Inspection
Section 4.3.1 provides more detail about HEPA filter handling and inspection prior to installation.
1. In general, inspect for cracks, breaks or pinholes. Replace as necessary.
2. Measure the pressure drop across the HEPA filter. When the pressure is greater than 1” w.c.
than when installed, Despatch recommends replacing the filter.
6.5. Cleaning and Decontamination
6.5.1. Cleaning the LCC2-14 Series Oven
For best product results, clean the oven monthly. To clean the oven:
1. Wipe all surfaces with a moistened towel or use a neutral cleaning agent.
2. Use a moistened towel to remove cleaning agents when finished.
3. Dry oven completely before turning it on again.
Clean stainless steel surfaces quarterly. To clean stainless steel surfaces:
1. Remove stains or spots with MEK (Methyl-Ethyl-Ketone).
2. Immediately after using MEK, wash steel surface using a polyurethane cloth or sponge
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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.
LCC/LCD2-14 Series Oven Owner’s Manual MAINTENANCE
Notice
Before using any cleaning or decontamination method except
those recommended by the manufacturer, users should check
with the manufacturer that the proposed method will not
damage the equipment.
If necessary, remove highly contaminated inner chamber parts
for cleaning or exchange.
Warning!
Do not decontaminate oven without first disconnecting power.
Ensure adequate personal safety while decontaminating oven.
Danger!
Explosive gases may form during decontamination. Dry and
ventilate oven before start-up to avoid explosions.
Version 1 49
6.5.2. Decontaminating the LCC2-14 Series Oven
For best results, decontaminate the work zone daily.
1. Wipe all work surfaces with an appropriate disinfectant.
2. Use a neutral cleaning agent. Do not use acidic or chlorine cleaning detergents as they
may damage or corrode the oven.
6.6. 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.
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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.
TROUBLESHOOTING LCC/LCD2-14 Series Oven Owner’s Manual
Alarm Status
Possible Problem
Next Step
HI LIMIT LED ON
Problem with thermocouple
High Limit setpoint has been
exceeded
Once the problem has corrected,
press RESET.
DEV HOLD LED flashing
Oven temperature has not
entered (or dropped out of) the
Auto Hold band and the soak
timer has stopped
Program a slower ramp rate or, if
oven is not heating check heater
circuit.
Top PV displays OPEN
Control thermocouple is
disconnected or broken
Repair or replace the thermocouple.
HLPV displays OPEN
High Limit thermocouple is
disconnected or broken
Repair or replace the thermocouple.
50 Version 1
7. Troubleshooting: Error Messages and Alarm
Table 5 lists the more common error messages, possible problems and remedies.
Table 5. Error Messages and Next Steps.
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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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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.
Refer to instructions provided recorder manufacturer for more
specific installation notes.
Parameter Code
Degrees C
Degrees F
Inps
18
18
Icor 0 0
diSP
On
On
dPOS
0
0
EUU6
400
752
EUL6
0
32
ChUP
400
8007
ChLO
0 0 DFF
1
1
6
7
52 Version 1
8.2. LCC/LCD2-14 Series Oven Options
8.2.1. Optional MRC5000 Setup
Temperature is retransmitted to the MRC5000 recorder from the controller. To set up the
recorder:
1. Ensure hardware jumper JU1 is in place for the 5 VDC setting (Refer to MRC5000 Manual
included).
2. Move MODE to PROG/TEST/CAL to display Prog.
3. Press ▼ twice to display Inps. Move to each Parameter Code using ▼or ▲. Adjust each
Parameter Code using the settings in Table 7.
4. After adjusting all settings, move MODE to RUN. Display on both the recorder and controller
should read the same.
Table 7. MRC 5000 Settings.
8.2.2. Optional High Limit Alarm with Alarm Silence
The LCC/LCD2-14 Series oven optional High Limit Alarm provides an audible and visual alarm
when the temperature exceeds the High Limit setpoint on the control. The alarm horn is typically
located to the right of the control panel door.
These values must match the settings RetOutLo and RetOutHi on the Protocol 3 Control page. For
example, if RetOutLo is 32, EUL must read 32.
Change 0-400 chart paper to 0-800 chart paper. Depending on the equipment used, 0-600 paper may be
used if the maximum temperature is 500°F.
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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.
Optional Beacon Light-equipped Units: The red (top) beacon
light will illuminate, indicating a fault has occurred (Error!
eference source not found.).
When the alarm is triggered by the end of cycle, the alarm will
continue to be active until another process is started.
A
Figure 23. Alarm Silence Switch.
Version 1 53
When the chamber temperature exceeds the High Limit setting on the control, the heater shuts
down, the alarm horn sounds and the red push button switch will illuminate.
To silence the alarm:
1. Depress the Alarm Silence switch (Figure 23).
a. This silences the alarm horn.
b. The red push button switch remains illuminated.
2. Clear the alarm by correcting the
High Limit condition.
3. When the High Limit condition
clears, press Reset on the control.
See Protocol 3 Owner’s Manual
for detailed operation.
4. The red push button switch will go
off, the heater switches on and the
control is functioning correctly.
5. If the High Limit trips repeatedly,
identify the cause and correct the
problem.
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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.
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.
LCC/LCD2-14 Series Oven Owner’s Manual APPENDICES
Figure 24. LCC/LCD2-14 (Drawing 320905-01).
Version 1 55
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or photocopying, recording, or information storage and retrieval systems without the written permission of Despatch Industries, unless for purchaser's personal use.
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.
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.
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.