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1
Despatch LBB Series manual available for free PDF download: Owner's Manual
Despatch LBB Series Owner's Manual (79 pages)
Brand:
Despatch
| Category:
Oven
| Size: 3.42 MB
Table of Contents
Revision History
2
Table of Contents
3
1 About this Manual
8
Important User Information
8
Manufacturer & Service
9
Organization of this Manual
9
Conventions
10
Specifications
11
Dimensions
11
Capacities
12
Power
13
Temperature
14
2 Safety
15
Safety Information
15
Lockout
15
Lockout Requirements
15
Lockout Procedure
15
Maintenance
16
Electrical Power
16
Fire
17
Equipment Lockout Requirements
17
Emergency Stop
17
3 Theory of Operation
19
The LBB Series Oven
19
Figure 1. LBB Forced Convection Benchtop Oven
19
Figure 2. Horizontal Airflow through the LBB Oven
19
Oven Theory
20
Control Systems
20
Primary Control Instrument
20
Figure 3. LBB Series Oven Primary Control Instrument
21
Table 1. Control Instrument Explanations
21
Optional Protocol Plus Controller
22
Hi-Limit Instrument
22
Figure 4. Protocol Plus Displays and Control Buttons
22
Product Hi-Limit Instrument
23
Oven Hi-Limit Instrument
23
Figure 5. Hi-Limit Instrument
23
Table 2. Hi-Limit Instrument Explanations
23
4 Assembly & Setup
24
Unpack & Inspect the LBB Series Oven
24
If Damaged During Shipping
24
Set-Up the LBB Series Oven
24
Select Oven Location/Operating Environment
24
Set-Up Procedure
25
Wiring & Power Connections
26
Figure 6. LBB Series Oven Name Plate
26
Figure 7. LBB Series Oven with Top Removed
27
Figure 8. Wiring Access through Rear of Oven
27
Figure 9. Close-Up of Connector Block
27
5 Operation
28
Load Oven
28
Pre-Startup Checklist
29
Operating Procedure
30
Start Oven
30
Figure 10. LBB Series Oven Control Panel
31
Figure 11. Adjust Damper to Set Exhaust Vent by Rotating the Outer Component
31
Working with the Control Instrument
32
Change Setpoint
32
Control Instrument Parameter Programming Mode
33
Entering Control Instrument Operating and Set-Up Mode
33
Table 3. Control Instrument Operating Parameters
33
Control Instrument Operating Mode Notes
34
Table 4. Control Instrument Set-Up Parameters
34
Change Control Instrument Display from Centigrade to Fahrenheit
35
Oven Zone Calibration
36
Set the Hi-Limit
37
Change the Hi-Limit Instrument Setpoint
37
Hi-Limit Instrument Parameter Setup Mode
38
Hi-Limit Instrument Setup Parameters
38
Change Hi-Limit Instrument Display from Centigrade to Fahrenheit
39
Working with Optional Protocol Plus Controller Operating Modes
40
6 Maintenance
41
Checklist
41
Lubrication
42
Routine Tests
42
Test Control Instrument
42
Test Hi-Limit Instrument
42
Replacement Parts
42
Replace the Control Instrument
43
Figure 12. Remove Control Panel to Access Control Instrument
44
Figure 13. Providing Easy Access to the Control Instrument
44
Figure 14. Remove Old Control and Hi-Limit Instruments and Wiring (Rear View)
45
Figure 15. Prepare to Remove Control Instrument by Removing the Mounting Bracket
45
Replace Hi-Limit Instrument
46
Figure 16. Connections to Control Instrument
46
Figure 17. Hi-Limit Connector Block on Control Board
47
Figure 18. Press and Hold Tabs to Remove Hi-Limit Instrument
47
Figure 19. Connections to Hi-Limit Instrument
48
Figure 20. Connections to Hi-Limit Instrument
48
Replace (Optional) Protocol Plus Controller
49
Replace Heater Unit
49
Figure 21. Remove Screws to Remove each Duct
49
Replace Fan Motor
51
Figure 22. Typical Heating Element
51
Figure 23. Fan Motor Location and Close-Up
52
7 Troubleshooting
53
8 Appendices
55
Standard Products Warranty
55
Optional Equipment
56
Assemble Oven Stand
56
Figure 24. Optional LBB Oven Stand
56
Timer Option
57
Operating the Timer
57
Figure 25. Timer Option Displays and Switches
57
Configure the Timer
58
Timer Option with Audible and Visual Alarm
58
High Alarm Limit Option
59
Recorder Option
59
Stacking Kit Assembly Instructions (Only for Models LBB1-23, LBB1- 43 and LBB1-69 )
59
Figure 26. Stacking Kit Assembly Components
60
Part Lists
61
Lbb1-23A-1
61
Lbb1-23B-1
61
Lbb1-43A-1
62
Lbb1-43B-1
62
Lbb1-69A-1
63
Lbb1-69B-1
63
Lbb2-12-1
64
Lbb2-18-1
64
Lbb2-27-1
65
Electrical Schematics
66
Copyright © 2011 by Despatch Industries
66
Figure 27. LBB1-23A-1 Schematic
68
Figure 28. LBB1-23B-1 Schematic
70
Figure 29. LBB1-43A-1 Schematic
71
Figure 30. LBB1-43B-1 Schematic
72
Figure 31. LBB1-69A-1 Schematic
73
Figure 32. LBB1-69B-1 Schematic
74
Figure 33. LBB2-12-1 Schematic
75
Figure 34. LBB2-18-1 Schematic
76
Figure 35. LBB2-27-1 Schematic
77
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