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Chapter 2
Profire V Burner
2-8
750-177
Figure 2-1
1: T
ypical UL Gas
T
rain,
Full Modulation
System, Size 1 V1
3 to V34
Figure 2-1
2: T
ypical
UL Gas T
rain, Low-
High-Off/Low-High-Lo
w,
Size 2 V35 to
V63, Full Mod
System, Size 2-3-4 V35 to V168
19
21
Table of Contents
Main Page
Default Chapter
4
Table of Contents
4
Chapter 1 Basics of Flexible Watertube Operation
7
General
7
The Boiler
8
Construction
8
Steam Controls (All Fuels)
8
Hot Water Controls (All Fuels)
10
Chapter 2 Profire V Burner
13
Introduction
13
Installation
17
Combustion Air Supply
17
Gas Piping
19
Combustion Air
25
Startup and Operation
29
Gas Burners
31
Normal Operation
33
Adjustments
34
Burner Settings
35
Burner Adjustments
39
Maintenance
43
Gas System
44
Extended Shutdown
45
Troubleshooting
47
Burner Specs
51
Chapter 3 Pressure Vessel Care
55
General
55
Hot Water Boilers
55
System Pressure
56
Water Requirements (Steam Boilers)
57
Multiple Boiler Installations
57
Water Treatment
58
Blowdown
58
Cleaning
60
Boilout
60
Washing out
62
Periodic Inspection
62
Preparation for Extended Lay-Up
63
Chapter 4 Sequence of Operation
65
General
65
Circuit and Interlock Controls
65
Sequence of Operation - Oil or Gas
66
Flame Loss Sequence
67
A. General
73
Chapter 5 Adjustment Procedures
74
General
74
Modulating Motor
74
Modulating Motor Switches Low Fire and High Fire
74
Modulating Motor Switches - Low Fire and High Fire
74
Burner Operating Controls - General
74
Modulating Pressure Control (Steam)
77
Operating Limit Pressure Control (Steam)
77
High Limit Pressure Control (Steam)
77
Modulating Temperature Control (Hot Water)
77
Operating Limit Temperature Control (Hot Water)
77
High Limit Temperature Control (Hot Water)
77
Adjustment Procedures
77
Combustion Air Proving Switch
78
Gas Pressure and Flow Information
78
Gas Pilot Flame Adjustment
78
Low Water Cutoff Devices
78
N.gas Pilot Flame Adjustments
78
Gas Fuel Combustion Adjustment
79
Fuel Oil Pressure and Temperature - General
80
High Gas Pressure Switch
80
Low Gas Pressure Switch
80
Fuel Oil Combustion Adjustment
81
Low Oil Pressure Switch
82
Chapter 6
83
Troubleshooting
83
General
89
Periodic Inspection
89
Chapter 7 Inspection and Maintenance
89
Fireside Cleaning
90
Upper Pass Cleaning
90
Controls
92
Oil Burner Maintenance
94
Gas Burner Maintenance
95
Refractory
95
Casing Seals
95
Chapter 8 Casing HW . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8-2 Casing Low Pressure Steam . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8-4 Casing High Pressure Steam. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8-6
104
Steam Pressure Controls
104
Water Level Controls
105
Water Column, Main and Aux. - 15# Steam
107
Water Column, Main and Aux. - 150# Steam
108
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