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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
Prepared by:
Despatch Industries
P.O. Box 1320
Minneapolis, MN 55420-1320
Customer Service 800-473-7373
LCC SERIES OVENS
INSTRUCTION MANUAL
Volts
Phase
240
1
240
1
240
1
240
1
240
1
240
1
240
1
240
1
Hz
Heater Watts
50/60
3,000
50/60
3,000
50/60
6,000
50/60
6,000
50/60
6,000
50/60
9,000
50/60
9,000
50/60
9,000
P/N 125166
REV. 11/07
C-159
Total
14.2
14.2
26.7
26.7
26.7
42.2
42.2
42.2
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Table of Contents
Related Manuals for Despatch LCC Series
Summary of Contents for Despatch LCC Series
- Page 1 P/N 125166 REV. 11/07 C-159 LCC SERIES OVENS INSTRUCTION MANUAL Model Volts Phase Heater Watts Total LCC 1-11 50/60 3,000 14.2 LCC 1-11N 50/60 3,000 14.2 LCC 1-54 50/60 6,000 26.7 LCC 1-54N 50/60 6,000 26.7 LCC 1-54NV 50/60 6,000 26.7...
- Page 2 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.
- Page 5 PREFACE This manual is your guide to the Despatch oven. It is organized to give you the information you need quickly and easily. Read the entire NOTE: The INTRODUCTION section provides an overview INTRODUCTION and THEORY of the Despatch oven.
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Page 7: Table Of Contents
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 ...................... - Page 8 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 ....................
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Page 10: Introduction
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. -
Page 11: Specifications
SPECIFICATIONS Dimensions Model Chamber Size, inches (cm) Capacity, Overall Size, inches (cm) Maximum (liters) Number of Shelves LCC 1-11 (25) (35) (35) (31) (64) (53) (81) LCC 1-11N (25) (35) (35) (31) (66) (53) (81) LCC 1-54 (46) (51) (66) (153) (153) (74) -
Page 12: Capacities
LCC 1-87NV 42.2 50/60 None, Hardwired 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. -
Page 13: Temperature
Temperature Model LCC 1-11 LCC 1-11N LCC 1-54 LCC 1-54N, LCC 1-87 LCC 1-87N, LCC 1-54V LCC 1-87NV Time to 25 C - Temperature 100 C (approximate minutes) 25 C - 200 C 25 C - 260 C Recovery Time 125 C Door Open 1 200 C... -
Page 14: 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. -
Page 15: Construction
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. -
Page 16: Hepa Filters
HEPA Filters Absolute HEPA (High Efficiency Particulate Air) filters are used to limit particulate size in the work chamber to 0.3 microns or less. The gentle entrance and exit air velocity to and from the HEPA filter results in high efficiency and long life for the HEPA filters. Chamber temperature transitions must not NOTE: Definitions... -
Page 17: Handling
HEPA Filter Validation Testing This section describes the Despatch position and recommendations for HEPA filter testing and oven validation procedures. Despatch guarantees that the filters will meet specified efficiency ratings when the filter is: properly installed... -
Page 18: Validation Testing
Validation Testing Based on the issues discussed in this section, Despatch recommends the following test sequence for pharmaceutical Class 100 ovens. Proper installation of the HEPA filters. Cold D.O.P. challenge to determine integrity of oven chamber and filter gaskets. -
Page 19: Control Instrument
LIMIT instrument should be set to a to see that the product undergoing temperature somewhat below the processing in a Despatch oven is temperature at which the product could be adequately protected from damage. damaged. Use the CONTROL instrument... -
Page 20: Oven High Limit Instrument
Oven High Limit Instrument If the product does not have a critical high temperature limit, the HIGH LIMIT can be used as an oven HIGH LIMIT instrument. An oven HIGH LIMIT instrument protects oven equipment. Since the HIGH LIMIT instrument does not show the temperature, it can be properly set only after oven is in operation. -
Page 21: Instructions
One (1) oven instruction manual, One (1) control instrument instruction manual, One (1) high limit instrument manual, One (1) Warranty card, Two (2) Shelves One (1) Package containing four rubber pads If any of these items are missing from the packaged contents, contact Despatch... -
Page 22: Set-Up
Industries to have the appropriate materials forwarded to you. Any optional accessories ordered will be shipped separately. Complete the warranty card and mail it to Despatch within 15 days after receipt of the equipment. Set-up Remove adhesive backing sheet from the rubber pads. - Page 23 The brass needle valve on the face of the WARNING: never allow water flowmeter can be used for adjusting the drain to be plugged as a water flow or shutting off the water flow. hot oven will generate a small amount of steam when the water is first turned on.
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Page 24: Hepa Filter Installation
Identify correct power source indicated on the specification plate. Power requirements are also listed on the cover of this manual. Hardwire oven directly to a disconnect switch and wire the disconnect switch directly to the electric supply. Refer to the electrical schematic in the back of this manual and the power requirements table in the Specifications section. -
Page 25: Hepa Filter Burn-Off
Check the corner joints of the frame for adhesive sealing and tightness. Check that the gaskets are cemented firmly to the filter frame and that the gasket pieces are butted or mated at the joints. Remove the old HEPA filter. Unscrew the four (4) brass nuts on the left side of the work chamber. - Page 26 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, then special attention must be given to an exhaust hook-up that will capture the smoke and odor.
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Page 27: Operating
National Fire Protection Association (NFPA), Section 86 of 1990. Loading the Oven 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. -
Page 28: Pre-Startup Checklist
Pre-Startup Checklist Know the system. Read this manual carefully. Make use of its instructions and explanations. The know how of safe, continuous, satisfactory, trouble-free operation depends primarily on the degree of your understanding of the system and of your willingness to keep all parts in proper operating condition. ... - Page 29 For the inert atmosphere ovens, NOTE: When operating the oven without adjust flow rate. the optional water cooling, the minimum operating temperature is approximately Determine the desired 78 C (nitrogen models) and oxygen level. approximately 20 C (non-nitrogen models) over the ambient room Use the following chart to temperature.
- Page 30 Turn the nitrogen valve WARNING: Never operate the oven at a WARNING: Never operate the oven at a switch to the PURGE temperature in excess of the maximum temperature in excess of the maximum position for the time to operating temperature which is 260 C operating temperature which is 260 C achieve oxygen level as (500 F).
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Page 31: Shut Down
After heating cycle is complete, turn the heater toggle switch to the OFF position. Do not turn the power off until the oven chamber temperature is below 100 C (212 F). Shut Down Push the heater switch to OFF after the heating cycle is complete. Do not turn the power off until the oven temperature is below 150 C (302 F). -
Page 32: Maintenance
Maintenance Do not attempt any service on this oven before opening the main power disconnect switch. Checklist Keep equipment clean. Gradual dirt accumulation retards air flow. A dirty oven can result in unsatisfactory operation such as unbalanced temperature in the work chamber, reduced heating capacity, reduced production, overheated components, etc. -
Page 33: Tests
Tests Tests should be performed carefully and regularly. The safety of personnel as well as the condition of equipment may depend upon the proper operation of any one of these controls at any time. Nitrogen Supply Check This test is necessary in nitrogen models only. Turn the inert atmosphere valve on High voltage is present on terminals, WARNING:... -
Page 34: Thermocouple Test
and < 1 VDC when off. Reconnect line power to the control. Replace the SSR if shorted or replace the CONTROL instrument if the output does not measure properly. Thermocouple Test Place a jumper or short the thermocouple terminals on the control. The display should read ambient temperature and be very stable. -
Page 35: Replacement
Parts To return parts contact Despatch Industries to obtain an MRA (material return authorization) number. This number must be attached to the returned part for our identification. If required, a new part will be sent and invoiced to you. When the return part is received, credit will be given, if in warranty. -
Page 36: Fan Motor
Fan Motor (Tools needed: Screwdriver, Allen wrench, crescent wrench) Disconnect power. Remove filter cover and filter from left side. Remove floor plate. Remove screws from the floor plate. Lift floor plate out of the oven. Remove the screws from the heater frame then tip up and to the right. Loosen set screws on fan wheel inside fan housing. -
Page 37: Replacing High Limit
Tighten set screws making sure set screws hit the flats machined into the motor shaft. Bolt heater back in place. Replace interior floor. Replace filter and filter cover. Reconnect power. Replacing HIGH LIMIT (Tools needed: Screwdriver, one quarter (¼) inch socket set) Disconnect power. -
Page 38: Thermocouple Break Protection
Thermocouple Break Protection If the thermocouple breaks, the control instrument will shut off power to the heater, preventing excessive temperature in the chamber. Replacing the Thermocouple (Tools needed: Small screwdriver and small crescent wrench) The controller thermocouple is type J (iron/constantan) and is replaceable using the following procedure: Disconnect power and remove screws from the face of the control panel and slide it forward. -
Page 39: Heater Unit
Heater Unit (Tools needed: Crescent wrench, screwdriver, one quarter (¼) inch socket set) Disconnect power. Remove filter cover and filter from left side. Remove floor plate. Remove screws from the floor plate. Lift floor plate out of the oven. Disconnect heater leads from heater element with wrench. Note which wires go on which terminals. -
Page 40: Appendix
Equipment operating for long periods may have occasional problems. Below are possible problems and suggested solutions. If you have a problem not listed and do not know what to do, contact Despatch Industries at our toll-free Help Line (800-473-7373). Difficulty... - Page 41 Difficulty Probable Cause Suggested Remedy temperature around Door seal deterioration Replace door seal. door Improper airflow Fan motor failure Replace fan motor. Unbalanced fan heel Replace fan heel. Filter clogged Replace filter. Excessive vibration Dirty fan wheel Clean fan. Unbalanced fan wheel Replace fan.
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Page 42: Factory Installed Options
Factory Installed Options Access Ports Circular openings welded into top or rear of chamber. Standard sizes available include 1, 2, 3 and 4 inches in diameter and come complete with a threaded cap. Door Switch A switch activated by the chamber door which will disable the heater, or the heater and recirculation fan. -
Page 43: Drawings
Drawings The drawings on the next pages are the electrical schematics for the following ovens: LCC 1 - 11 - 2 & LCC 1 - 11N – 2 Digitronic Controller DA351-080928J00 MIC1462 Controller DA351-140028B00 LCC 1 - 54 - 2 & LCC 1 - 54N - 2 & LCC 1 - 54NV – 2 Digitronic Controller CA351-054552T00 MIC1462 Controller DA351-140029B00 LCC 1 - 87 - 2 &...