Despatch LCC!-54N-2 Specifications
P/N 125166
Model
Volts
Phase Hz
Heater Watts
Total
LCC 1-11
240 1 50/60
3,000
14.2
LCC 1-11N
240 1 50/60
3,000
14.2
LCC 1-54
240 1 50/60
6,000
26.7
LCC 1-54N
240 1 50/60
6,000
26.7
LCC 1-54NV
240 1 50/60
6,000
26.7
LCC 1-87
240 1 50/60
9,000
42.2
LCC 1-87N
240 1 50/60
9,000
42.2
LCC 1-87NV
240 1 50/60
9,000
42.2
REV. 11/07
C-159
LCC SERIES OVENS
INSTRUCTION MANUAL
Prepared by:
Despatch Industries
P.O. Box 1320
Minneapolis, MN 55420-1320
Customer Service 800-473-7373
Notice
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.
Caution
Setup and maintenance of the equipment should be performed by qualified personnel
who are experienced in handling all facets of this type of system. Improper setup and
operation of this equipment could cause an explosion that may result in equipment
damage, personal injury or possible death.
Thank you for choosing Despatch Industries. We appreciate
the opportunity to work with you and to meet your heat
processing needs. We believe that you have selected the
finest equipment available in the heat processing industry.
At Despatch, our service does not end after the purchase
and delivery of our equipment. For this reason we have
created the Service Products Division within Despatch. The
Service Products Division features our Response Center for
customer service. The Response Center will direct and
track your service call to ensure satisfaction.
Whenever you need service or replacement parts, contact
the Response Center at 1-800-473-7373: FAX 612-781-
5353.
Thank you for choosing Despatch.
Sincerely,
Despatch Industries
i
PREFACE
NOTE:
Read the entire
INTRODUCTION and THEORY
OF OPERATION before
installing the oven.
WARNING:
Failure to heed warnings in this
instruction manual and on the
oven could result in personal
injury, property damage or
death.
This manual is your guide to the Despatch oven. It is organized to give you the
information you need quickly and easily.
The INTRODUCTION section provides an overview
of the Despatch oven.
The THEORY OF OPERATION section details the
function and operation of assemblies and subassemblies on the Despatch oven.
The INSTRUCTIONS section provides directions on unpacking, installing, operating
and maintaining the Despatch oven.
The APPENDIX section contains Special Instructions
for operating the control instrument, a Troubleshooting Table, and a list of Accessories.
An efficient way to learn about the oven would be to
read the manual while working with the corresponding
oven control system. This will give you practical
hands-on experience with information in the manual
and the oven.
Before operating the equipment, be sure you understand all of the technical information
contained in this manual. Information skipped, not understood or misunderstood could
create the possibility of operating the equipment in an unsafe manner. This can cause
damage to the oven or personnel or reduce the efficiency of the equipment.
ii
iii
TABLE OF CONTENTS
INTRODUCTION ............................................................................................................. 1
Special Features .................................................................................................. 1
SPECIFICATIONS .......................................................................................................... 2
Dimensions ........................................................................................................... 2
Capacities ............................................................................................................. 3
Power ................................................................................................................... 3
Temperature ......................................................................................................... 4
THEORY OF OPERATION ............................................................................................. 5
Construction ......................................................................................................... 6
Cooling ................................................................................................................. 6
Inert Atmosphere .................................................................................................. 6
HEPA Filters ......................................................................................................... 7
Definitions .................................................................................................. 7
Packaging and Shipping ............................................................................ 7
Handling ..................................................................................................... 8
HEPA Filter Validation Testing .................................................................. 8
D.O.P. Testing ................................................................................ 8
Class 100 Testing ........................................................................... 8
Validation Testing ........................................................................... 9
The Necessity of the Burn-off Process ...................................................... 9
Filter Unit Replacement ............................................................................ 9
CONTROL Instrument ........................................................................................ 10
HIGH LIMIT Instrument ...................................................................................... 10
Product High Limit Instrument ................................................................. 10
Oven High Limit Instrument ..................................................................... 11
INSTRUCTIONS ........................................................................................................... 12
Unpacking and Inspection .................................................................................. 12
Set-up ................................................................................................................. 13
HEPA Filter Installation ............................................................................ 15
HEPA Filter Burn-off ................................................................................ 16
OPERATING ................................................................................................................. 18
Loading the Oven ............................................................................................... 18
Pre-Startup Checklist .......................................................................................... 19
Startup ................................................................................................................ 19
Shut Down ............................................................................................... 22
Maintenance ....................................................................................................... 23
Checklist .................................................................................................. 23
Tests ................................................................................................................... 24
Nitrogen Supply Check ........................................................................... 24
iv
Control Output Check .............................................................................. 24
Thermocouple Test .................................................................................. 25
Safety Controls ........................................................................................ 25
Replacement ...................................................................................................... 26
Parts ........................................................................................................ 26
CONTROL Instrument ............................................................................. 26
Fan Motor ................................................................................................ 27
Replacing HIGH LIMIT ............................................................................ 28
Thermocouple Break Protection .............................................................. 29
Replacing the Thermocouple ........................................................ 29
Heater Unit ............................................................................................... 30
APPENDIX .................................................................................................................... 31
Troubleshooting .................................................................................................. 31
Factory Installed Options .................................................................................... 33
Drawings ............................................................................................................. 34
v
1
INTRODUCTION
This section provides an overview of the Despatch LCC Series oven. The LCC offers
HEPA filtration for processes where minimization of contamination is essential. Fresh
air and nitrogen (noted with an N suffix) models are available.
Special Features
The removable HEPA (High Efficiency Particulate Air) filter is designed to provide a
constant flow of 99.97% clean air to the product. Other special features include:
Digital TEMP CONTROL and manual reset HIGH LIMIT to protect the chamber
workload as well as the oven itself.
Stainless steel interior with all interior seams continuously welded on the
insulation side to protect the work chamber from contamination and to permit
chamber washing without damaging insulation.
Silicon door seals, shaft seals and gasketing (Viton Fluorocarbon on NV
models).
Door seals and interior chamber walls are removable for cleaning.
Heater with a five year warranty.
Cooling coil to provide rapid cooldown and low temperature operation (nitrogen
models only).
Scratch-resistant SilverClay® baked enamel exteriors and a stainless steel
interior for easy cleaning.
Silicon-free construction on NV models.
Nitrogen operation (N and NV models only)
2
SPECIFICATIONS
Model
Chamber Size, inches (cm)
Capacity,
ft3 (liters)
Overall Size, inches (cm)
Maximum
Number of
Shelves
W D H W D
H
LCC 1-11
10
(25)
14
(35)
14
(35)
1.1
(31)
25
(64)
21
(53)
32
(81)
5
LCC 1-11N
10
(25)
14
(35)
14
(35)
1.1
(31)
26
(66)
21
(53)
32
(81)
5
LCC 1-54
18
(46)
20
(51)
26
(66)
5.4
(153)
34
(153)
29
(74)
43
(109)
11 LCC 1-54N,
LCC 1-54NV
18
(46)
20
(51)
26
(66)
5.4
(153)
34
(153)
29
(74)
43
(109)
11 LCC 1-87
22
(56)
20
(51)
34
(86)
8.7
(248)
39
(99)
29
(74)
52
(132)
14 LCC 1-87N,
LCC 1-87NV
22
(56)
20
(51)
34
(86)
8.7
(248)
39
(99)
29
(74)
52
(132)
14
Dimensions
3
Capacities
Model
LCC 1-11
LCC 1-11N
LCC 1-54
LCC 1-54N,
LCC 1-54NV
LCC 1-87
LCC 1-87N,
LCC 1-87NV
Maximum
Load
Lbs
25 25 150 150 200 200 Maximum
Shelf Load
Lbs
10 10 25 25 25 25 Recirculating
Fan
CFM
H.P.
265
1/4
265
1/4
400
1/4
400
1/4
990
3/4
990
3/4
Approximate
Net Weight
Lbs.
KG
285
129
285
129
380
172
380
172
500
227
500
227
Shipping
Weight
(approximate)
Lbs.
KG
400
181
400
181
615
279
615
279
750
341
750
341
Model
Volts *
Amps
Hertz
Heater Phase
KW Cord and Plug
LCC 1-11
240 14.2
50/60
1 3
None, Hardwired
LCC 1-11N
240 14.2
50/60
1 3
None, Hardwired
LCC 1-54
240 26.7
50/60
1 6
None, Hardwired
LCC 1-54N
240 26.7
50/60
1 6
None, Hardwired
LCC 1-54NV
240 26.7
50/60
1 6
None, Hardwired
LCC 1-87
240 42.2
50/60
1 9
None, Hardwired
LCC 1-87N
240 42.2
50/60
1 9
None, Hardwired
LCC 1-87NV
240 42.2
50/60
1 9
None, Hardwired
Power
Line voltages may vary in some geographical locations. If your line voltage is much
lower than the oven voltage rating, warm up time will be longer and motors may
overload or run hot. If your line voltage is higher than name plate rating, the motor may
run hot and draw excessive amps. If the line voltage varies more than 10% from the
oven voltage rating, some electrical components such as relays, temperature controls,
etc. may operate erratically.
* Oven designed for 240 volts (see nameplate on oven) will operate satisfactorily on a minimum of 208 volts, but with a 25%
reduction in heater power. If your power characteristics are lower, contact Despatch Industries.
4
Temperature
Model
LCC 1-11
LCC 1-11N
LCC 1-54
LCC 1-54N,
LCC 1-54V
LCC 1-87
LCC 1-87N,
LCC 1-87NV
Time to
Temperature
(approximate
minutes)
25 C 100 C
4 4 5 5 4 4
25 C 200 C
13 13 14 14 12 12
25 C 260 C
20 20 23 23 18 18
Recovery Time
Door Open 1
Minute
(approximate
minutes)
125 C
0.5 0.5 1 1 1 1
200 C
1 1 2 2 2
2
260 C
2.5 2.5 3 3 3 3
Temperature
Uniformity at
(maximum)
125 C
± 1 C
± 1 C
± 2 C
± 2 C
± 1 C
± 1 C
200 C
± 2 C
± 2 C
± 2 C
± 2 C
± 2 C
± 2 C
260 C
± 3 C
± 3 C
± 3 C
± 3 C
± 3 C
± 3 C
Maximum Operating
Temperature
260 C
260 C
260 C
260 C
260 C
260 C
Minimum
Operating
Temperature
Above Ambient
(approximate)
Without
Water
Cooling
48 C
53 C
34 C
85 C
54 C
116 C
With
Water
Cooling
9 C 9 C 18 C
18 C
35 C
40 C
Cooling Time
Empty Oven
(approximate
minutes)
200 C 50 C
63 64 48 58 54 78
Control Stability
± 0.3 C
± 0.3 C
± 0.3 C
± 0.3 C
± 0.3 C
± 0.3 C
Repeatability
± 0.5 C
± 0.5 C
± 0.5 C
± 0.5 C
± 0.5 C
± 0.5 C
5
THEORY OF OPERATION
The THEORY OF OPERATION section details the function and operation of the
Despatch LCC Series Ovens.
The LCC series oven is a class 100 clean room oven with HEPA (High Efficiency
Particulate Air) filtration. This oven is ideal for processes where minimization of
contamination is essential.
Forced convected airflow, provides rapid uniform distribution of heat. An absolute
HEPA (High Efficiency Particulate Air) filter is mounted in a stainless steel frame in the
supply plenum. These filters are 99.97% effective in filtering 0.3 micron particles.
6
Construction
The LCC series 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 chamber walls and silicon door gaskets (Viton Fluorocarbon on NV models) can
be easily removed for cleaning. Heater frame, fan wheel and motor shaft are
constructed of stainless steel.
Exteriors are steel finished in SilverClay enamel, baked to a 2H hardness for chip and
scratch resistance. All controls are mounted on the front of the oven for easy operation
and readability. Two electropolished stainless steel wire shelves are provided. The
shelves are removable and adjustable on two inch centers.
Cooling
Air models have an adjustable fresh air damper which allows cooling of the oven.
Nitrogen models have a stainless steel water coil. When used in conjunction with the
optional flowmeter the cooling coil permits rapid cooldown and low temperature
operation.
Inert Atmosphere
An inert atmosphere option offers the advantages of both a clean room oven and inert
atmosphere oven. The nitrogen portion for the LCC series oven includes a manual
three way valve and two flowmeters, connected by piping to the inlet connection on the
lower back panel marked nitrogen supply.
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