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Krom Schroder PFU 780
Honeywell Krom Schroder PFU 780 Manuals
Manuals and User Guides for Honeywell Krom Schroder PFU 780. We have
1
Honeywell Krom Schroder PFU 780 manual available for free PDF download: Technical Information
Honeywell Krom Schroder PFU 780 Technical Information (71 pages)
Burner control unit
Brand:
Honeywell
| Category:
Control Unit
| Size: 4.61 MB
Table of Contents
Burner Control Unit PFU 780
1
Table of Contents
2
1 Application
4
Examples of Application
6
Stage-Controlled Main Burner with Alternating
6
Pilot Burner
6
Stage-Controlled Main Burner with Permanent
7
Pilot Burner
7
Modulating-Controlled Burner
8
Pfu 780..D
9
2 Certification
10
3 Function
11
Connection Diagram
11
Pfu 780
11
Pfu 780
12
PFU 780 Program Sequence
13
Program Status and Fault Messages
16
4 Parameters
18
Scanning the Parameters
19
Flame Control
20
Flame Signal, Pilot Burner
20
Flame Signal, Main Burner
20
Program Status When the most Recent Fault
20
Occurred
20
Switch-Off Threshold of the Flame Amplifier
20
High Temperature Operation with PFU
21
UVS Check
24
Pilot and Main Burner Monitoring
25
Permanent Pilot Burner
27
Interrupted Pilot Burner
28
Behaviour in Start-Up Position/Standby
29
Flame Simulation Check in Start-Up Position
29
Standby
29
Minimum Burner Pause Time T BP
30
Behaviour During Start-Up
31
Safety Time on Start-Up T SA
31
Flame Proving Period T
32
Minimum Combustion Time T
32
Burner Start-Up Attempts
33
Behaviour During Operation
35
Safety Time During Operation T
35
Burners . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 35 SB for Pilot and Main
35
Fault Lock-Out or Restart, Pilot Burner
35
Fault Lock-Out or Restart, Main Burner
37
Air Valve Control PFU
39
Purge
39
Cooling in Start-Up Position/Standby
39
Burner Start
39
(Not During Start-Up)
40
Air Valve Opens in the Case of External Activation
41
(Even During Start-Up)
41
Air Valve Opens with Valve V2
42
Air Valve Opens with Operating Signal
43
Low Fire over Run Time T
44
Behaviour of the Air Valve in the Event of a Fault KN after a Normal Shut-Down
44
Lock-Out
45
Manual Operation
46
Manual Mode Limited to 5 Minutes
46
Password
47
5 Selection
48
Calculating the Safety Time T SA
48
Selection Table
49
Type Code
49
6 Project Planning Information
50
Cable Selection
50
Ignition Cable
50
Ionisation Cable
50
UV-Leitung
50
Ignition Electrode
50
Electrode Gap
50
Star Electrodes
50
Minimum Combustion Time
51
Safety Interlocks (Limits)
51
Emergency Stop
52
In the Event of Fire or Electric Shock
52
Via the Safety Interlocks (Limits)
52
Reset
52
Parallel Reset
52
Permanent Remote Reset
52
Automatic Remote Reset (PLC)
52
Burner Start
52
Restart and Start-Up Attempts
52
Fault Message
53
Protecting the Pilot Burner from Overload
53
Installation
53
Wiring
53
UVS Sensor Wiring
53
PFU Switched off
53
Furnace Control
54
Note on EC Type-Examination
54
Mains Switch
54
Changing Parameters
54
7 Flame Control
55
With Ionisation Sensor
55
With UV Sensor
55
Via the Temperature in High Temperature
55
Equipment
55
8 Accessories
56
High-Voltage Cable
56
Bcsoft
56
Stickers for Labelling
56
Changed Parameters" Stickers
56
Radio Interference Suppressed Electrode
57
Adapters
57
Socket Connectors
57
Module Subrack
57
Power Supply PFP 700
58
Relay Module PFR 704
59
Field Bus Interface PFA 700
60
Impulse System MPT 700
61
9 Technical Data
62
Safety-Specific Characteristic Values
64
Operating Controls
65
10 Maintenance Cycles
66
11 Legend
67
12 Glossary
68
Waiting Time T W
68
Safety Time on Start-Up T SA
68
Ignition Time T Z
68
Flame Simulation/Flame Simulation Delay Time T LV
68
Safety Time During Operation T SB
69
Flame Signal
69
Fault Lock-Out
69
Safety Interlocks (Limits)
69
Pilot Gas Valve V1
69
Main Gas Valve V2
69
Continuous Operation
70
Air Valve
70
Diagnostic Coverage DC
70
Mode of Operation
70
Safe Failure Fraction SFF
70
Probability of Dangerous Failure PFHD
70
Mean Time to Dangerous Failure MTTF D
70
Feedback
71
Contact
71
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