Webster SC Series Guide de l'utilisateur
Webster Combustion Technology LLC
619 Industrial Road, Wineld, KS 67156
Installation, Startup, Operation and Maintenance Manual
SC Series
Forced Draft Burners
Manual Part No. 950108 - R1
www.webstercombustion.com
August, 2017
2017 All Rights Reserved
C
SAFETY PRECAUTIONS
Page 2 Safety PrecautionsSC Manual
Good safety practices must be used when working on burner equipment. The potential energy in the electrical supply,
fuel and related equipment must be handled with extreme care to prevent equipment failures, injuries and potential
death.
Throughout this manual, the following symbols are used to identify potential problems.
WARNING
This indicates a potential hazardous situation, which if not avoided, could result in personal injury or death.
CAUTION
This indicates a potentially hazardous situation which, if not avoided, could result in damage to the equipment.
The following general safety precautions apply to all equipment work.
WARNING
IF YOU SMELL GAS, OPEN THE WINDOWS, EXTINGUISH ANY OPEN FLAMES, STAY AWAY FROM
ELECTRICAL SWITCHES, EVACUATE THE BUILDING AND IMMEDIATELY CALL THE GAS COMPANY.
IN ACCORDANCE WITH OSHA STANDARDS, ALL EQUIPMENT, MACHINES AND PROCESSES SHALL BE
LOCKED OUT PRIOR TO SERVICING.
IF THIS EQUIPMENT IS NOT INSTALLED, OPERATED AND MAINTAINED IN ACCORDANCE WITH THE
MANUFACTURERS INSTRUCTIONS, THIS PRODUCT COULD EXPOSE YOU TO SUBSTANCES IN FUEL OR
FROM FUEL COMBUSTION WHICH CAN CAUSE DEATH OR SERIOUS ILLNESS AND WHICH ARE KNOWN
TO THE STATE OF CALIFORNIA TO CAUSE CANCER, BIRTH DEFECTS OR OTHER REPRODUCTIVE HARM.
IMPROPER SERVICING OF THIS EQUIPMENT MAY CREATE A POTENTIAL HAZARD TO EQUIPMENT AND
OPERATORS.
SERVICING MUST BE DONE BY FULLY TRAINED AND QUALIFIED PERSONNEL.
BEFORE DISCONNECTING OR OPENING UP A FUEL LINE AND BEFORE CLEANING OR REPLACING
PARTS OF ANY KIND:
• TURN OFF THE MAIN MANUAL FUEL SHUTOFF VALVES INCLUDING THE PILOT COCK, IF
APPLICABLE. IF A MULTIPLE FUEL BURNER, SHUT OFF ALL FUELS.
• TURN OFF ALL ELECTRICAL DISCONNECTS TO THE BURNER AND ANY OTHER EQUIPMENT OR
SYSTEMS ELECTRICALLY INTERLOCKED WITH THE BURNER.
Service Organization Information:
Company Name
Address
Phone Number
Date of Startup
Lead Technician
Safety Precautions ...............................................................................................................................
A. Introduction ..........................................................................................................................................
Burner Model Number..............................................................................................................
SC Specications.....................................................................................................................
SC Model Conguration...........................................................................................................
Specication Data....................................................................................................................
Dimensional Data....................................................................................................................
B. Component ldentication......................................................................................................................
C. Installation.............................................................................................................................................
D. Special lnstructions For Canadian lnstallations....................................................................................
E. Burner Mounting Criteria ......................................................................................................................
F. Fuel Systems........................................................................................................................................
G. Initial Settings.......................................................................................................................................
H. Ignition Systems...................................................................................................................................
I. Start-up & Operating Adjustments........................................................................................................
J. Troubleshooting...................................................................................................................................
K. General Maintenance And Care...........................................................................................................
L. Care of Burner During Shutdown.........................................................................................................
M. Replacement Parts...............................................................................................................................
N. Warranty Validation & Field Start-up Report.........................................................................................
2
3
3
4
5
6
7
8
11
12
13
14
18
19
19
26
28
30
30
30
TABLE OF CONTENTS
A. INTRODUCTION
Page 3 IntroductionSC Manual
This manual covers the Model SC burners offered by
Webster Combustion Technology LLC. These burners can
be used in a wide variety of Cast Iron, Firebox, Firetube,
Flextube and other applications. They can re gas, oil and
combination gas and oil, with several different operating
systems.
READ AND SAVE THESE INSTRUCTIONS FOR
REFERENCE.
WARNING
DO NOT ATTEMPT TO START, ADJUST OR MAIN-
TAIN THIS BURNER WITHOUT PROPER TRAINING
OR EXPERIENCE. FAILURE TO USE KNOWLEDGE-
ABLE TECHNICIANS CAN RESULT IN EQUIPMENT
DAMAGE, PERSONAL INJURY OR DEATH.
The startup and maintenance of the SC burner requires the
skills of an experienced and properly trained burner techni-
cian. Inexperienced individuals should not attempt to start
or adjust this burner.
Every attempt has been made to accurately reect the
burner construction, however, product upgrades and spe-
cial order requirements may result in differences between
the content of this manual and the actual equipment.
These special components will be described in the infor-
mation provided with the burner and should be used as the
controlling document.
NOTE: This manual must be readily available to all op-
erators and maintained in legible condition.
1. Nameplate Information
Each burner has a nameplate with important job details,
similar to the nameplates shown in Figure A-1.
Figure A-1 Nameplate
MODEL NUMBER
SC12C-15-RM7840L-UL-IRI
SERIAL NUMBER
U81375A-018-06
OIL INPUT RATINGGAS INPUT RATING
MBTU/HR IN.WC GPH PSI
2940 2.8 21 300
MAXIMUM
1680 1.0 12 100
MINIMUM
NATURAL GAS #2 FUEL OIL
FUEL
VOLTS AMPS HERTZ PHASE HP
115
CONTROL CIRCUIT 5.0 60 1
208
BURNER MOTOR 5.9 60 31.5
208
OIL PUMP MOTOR 4.3 60 31/2
The serial number represents the unique number for that
burner and is a critical number that will be needed for
any communications with Webster Combustion.
The input rates dene the maximum and minimum inputs
for that burner, given in MBH for gas and GPH for oil.
Air atomized burners show both the oil pressure and
air pressure. Pressure atomized burners only list the oil
pressure. For gas ring, the gas manifold pressure is
given in “in wc” which is inches of water column.
The electrical ratings of the burner are given, with the volt-
age, current load, frequency and phase (this will either
be single or 3-phase). For motors, the motor HP is listed.
2. Ratings
The ratings for each specic burner are given on the
nameplate. The general burner ratings are given in
Specication Sheets that follow this section. The
maximum inputs are given, based on the type of fuel.
Other conditions, like the supply gas pressure or the
combination of fuels, emission requirements and control
systems may prevent the burner from reaching the
lowest ring rate.
3. Product Offering
The SC burner can re natural gas as well as #2 oil.
DO NOT USE GASOLINE, CRANKCASE OIL OR ANY
OIL CONTAINING GASOLINE.
Figure A-2 lists the common variations and options
available on this product. The minimum furnace
conditions are given in Section C.
4. Your Complete Manual
In addition to this manual, there are several other
documents that should be considered as part of the
complete manual for the burner. All of these documents
are needed to support the installation and startup of the
unit. These additional items include:
a. The wiring diagram, which shows the limits and inter
connection of the burner and vessel controls.
b. The gas piping schematics, which show the
components and their positions in the piping train.
c. The unit material list which provides an overview of
the burner requirements and a complete bill of
material, including the part numbers and description
for each item.
d. The ame safeguard manual provides the
operating sequence for the burner management
system. This will be a critical document for trouble-
shooting any future problems.
e. Catalog cuts of the major components. These
provide details on the installation, adjustment and
maintenance of the components used on the burner.
5. Service, Parts and other Information
Service and parts are available from your local Webster
Representative. For a list of Webster Representatives,
please visit the Webster web site at:
www.webster-engineering.com or call 620-221-7464
Page 4 IntroductionSC Manual
SC BURNER MODEL CONFIGURATION
FIGURE A-2
SC12G -50-LMV51-M.25-M-MP-UL/CSD-1
BURNER SERIES
SC SC SERIES
HEAD SIZE (INCHES)
SC
8
10
12
12.3
13
13.8
14
15
15.8
16
18
20
24
FUELS
G Gas
CGas/Oil
O Oil
BLOWER MOTOR
HORSEPOWER
20 2
25 2 1/2
30 3
50 5
75 7 1/2
100 10
150 15
200 20
250 25
300 30
400 40
FLAME SAFEGUARD
VENDOR DESIGNATION
M Mark AutoFlame - mini mark
Nexus Fireye
LMV51 Siemens
LMV52 Siemens
The above represents the common model designations. Contact the factory for other options and special applications.
Page 5 Model CongurationSC Manual
CODES AND
LISTINGS
UL
ULc
CSD-1
FM
IRI
NFPA-85
OIL SYSTEMS
Pressure Atomizing
MR Modulation By-Pass
MP Modulation Simplex
Air or Steam Atomization
MA Air Atomization
MS Steam atomizing
GAS TRAIN VENDOR
VGD Siemens
VGG Siemens
M Maxon
Blank All Others
(ASCO) - (std)
GAS TRAIN SIZE
.15 1 1/2 inches
.20 2 inches
.25 2 1/2 inches
.30 3 inches
.40 4 inches
GAS SYSTEMS
M Modulation
STANDARD UL EQUIPMENT
AND IMPORTANT OPTIONS (1)
STANDARD UL EQUIPMENT
AND IMPORTANT OPTIONS
General
Motor, Fan and Air Inlet Control X X
Gas Fuel
Main Manual Shutoff Valve X
Air Flow Switch (also with oil systems using remote
pump) X XMain Safety Shutoff Valve X
Burner Mounted Control Panel, Switch and Indicator
Lights (2) X X Second Safety Shutoff Valve X
Flame Safety Control X X Main Gas Regulator X
Ultra Violet Scanner X X Gas Checking Valve X
Motor Controller (single phase voltage)
Fuel Selector Switch
High and Low Gas Pressure Switches (st’d
over 2500 MBH) Opt.
Ignition
Proven Gas Pilot Ignition X X
Optional
Inverted Housing
Pilot Solenoid Gas Valve X XAlternate Control Cabinet Positioning
Pilot Gas Regulator & Manual Valve X XRemote Control Panel
Pilot Gas Ignition Transformer X X
Direct Spark Oil Ignition X X
Direct Spark Oil Ignition Transformer X X
1. The conguration of each unit will vary with specic job requirements such as input rating, electrical specication and special agency approval
codes. The above chart shows those items standard to a basic burner plus a few options that may be added.
2. Indicator lights are “Power On”, “Call for Heat”, ”Fuel On” and ”Flame Fail” for hard wired panels. “Alarm”, “Low Water”, “Power”, “Call for
Heat”, “Ignition On”, and “Fuel On” for circuit board light panels.
?. Larger motors may be required for single phase or 208 volts
The above maximum ratings are based on 0 furnace pressure, an altitude of 1000 feet, 90oF air temperature and 60 HZ electrical
supply. Use the following corrections for higher temperatures and altitude. Capacity decreases by 17% for 50 Hertz.
Capacity decreases by 4% for each 1000 feet above 1000 foot altitude.
Capacity decreases by 5% for each 1 inch of furnace pressure.
Capacity decreases by 2% for each 10oF increase in air temperature over 90oF.
Gas input ratings based on 1000 BTU/cu ft. and 0.64 specic gravity. Sizes and pressure will vary with gas.
Essential Ordering Information and Data:
Power Supply - Conrm 120-60-1 for control circuit and electrical supply for burner motor(s) (voltage, frequency and phase).
Describe Boiler or Heater to be Fired - Including the manufacturer, model number, furnace pressure and furnace size.
Firing Rate - Dene ring rates in MBH for gas. Fuel to be Burned - Type of gas, including the BTU value.
Approval Agency - UL, FM, IRI (GE GAP), CSD-1, NFPA, Mil spec and local codes, if applicable.
Flame Safety Control Preferred - Honeywell or Fireye controls.
Gas Train Components Preferred - ASCO/ITT, Honeywell or Landis
Control System - ON-OFF, Low Fire Start, Low-High-Low, Modulation, Posi-Control
Required Options - Mounting plate, limit controls, etc.
Model SC - Specication Data (2,400 MBH - 28,800 MBH Input)
Power Supply: Conrm 120-60-1 for control circuit and electrical supply for burner motor(s) (voltage, frequency and phase).
Describe Boiler or Heater to be Fired: Including the manufacturer, model number, furnace pressure and furnace size. Firing Rate: Dene ring rates
in MBH for gas. Fuel to be Burned: Type of gas and/or oil, including the BTU value. Approval Agency: UL, FM, IRI (GE GAP), CSD-1, NFPA, Mil spec
and local codes, if applicable. Flame Safety Control Preferred: Honeywell, Fireye or Siemens controls. Gas Train Components Preferred: ASCO/
ITT, Honeywell or Landis Control System - Modulation, Posi-Control Required Options - Mounting plate, limiting controls, etc.
Model SC - Specication Data
Page 6 Specication DataSC Manual
Model SC - Specication Data (2,400 MBH - 28,800 MBH Input)
Gas
Oil
Oil
Fuel
X X
(1) STANDARD
EQUIPMENT AND
IMPORTANT OPTIONS
Gas
No. 2 Oil
STANDARD EQUIPMENT
AND IMPORTANT OPTIONS
Gas
No. 2 Oil
Pressure
Atomized
Air
Atomized
Pressure
Atomized
Air
Atomized
General
Motor, Fan and Air Inlet Control X X X
Gas Fuel
Main Manual Shutoff Valve X
Air Flow Switch X X X Main Safety Shutoff Valve X
(2) Burner Mounted Control Panel,
Switch and Four Indicator Lights X X X Second Safety Shutoff Valve X
Main Gas Regulator X
Flame Safety Control X X X Gas Checking Valve X
Ultra Violet Scanner X X X High and Low Gas Pressure Switches X
Motor Starter with Overloads X X X Metering Valve (modulating systems) X
Fuel Selector Switch Dual Fuel Burners
Only
Normal Open Vent Valve (above
12,500 MBH) X
Ignition
Linkageless Control X X X
Oil Fuel
Oil Drawer Assembly with Diffuser X X
Proven Gas Pilot Ignition X X X Oil Nozzles X X
Pilot Solenoid Gas Valve X X X Remote Oil Pump X Opt.
Pilot Gas Regulator & Manual Valve X X X Two Safety Shutoff Valves X X
Options
Pilot Gas Ignition Transformer X X X Low Oil Pressure Switch X X
Inverted Housing X X X Oil Pressure Gauge X X
Alternate Control Cabinet Positioning X X X Oil Metering Valve X X
Remote Control Panel X X X Air Compressor X
1. The conguration of each unit will vary with specic job requirements such as input rating, electrical specication and special agency
approval codes. The above chart shows those items standard to a basic burner plus a few options that may be added.
2. Indicator lights are “Power On”, “Call for Heat”, ”Fuel On” and ”Flame Fail”.
IgnitionOptions
Page 7 Dimensional DataSC Manual
Model SC - Dimensional Data
Fuels Burned and Control Systems
- Natural Gas
- Light #2 Oil, Mechanical Pressure
- Modulating or Micro Modulation
- Control Circuit Requires 120 vac, 60 Hz, Single Phase Voltage Supply
Model SC burners can be packaged to meet specic requirements of IRI, FM, GE GAP, NFPA, MIL spec. or other
special insurance or local code requirements.
(Dimensions are +/- 1/4 inch)
B. COMPONENT IDENTIFICATION
Page 8 IdenticationSC Manual
Control
Cabinet
Louver Box
This secion shows the different common components used in the SC burner line and should be helpful to identify
parts described elsewhere in this manual.
Oil Pressure Switch
Oil Pressure Gauge
Oil Lines
Air Pressure Switch
Pilot Gas
Regulator
Secondary Fuel
Mod Motor
Figure B-1
SC Dual Fuel
Burners
Primary Fuel
Buttery
Combustion Head
Oil Pressure
Gauge
Figure B-2
SC Burner Side View
Control
Transformer
IgnitionTransformer Blower Motor
Secondary
Fuel Supply
Primary
Fuel Supply
Gas Separator Solenoid Valve
Page 9 IdenticationSC Manual
Oil Nozzles
Spark Plug
Secondary Gas Orices
Primary Gas Orices
Diffuser Assembly
Figure B-3
SC Head
UV Sight Port
Figure B-4
Control Panel
Hard Wired Design
Figure B-5
Air Compressor
Pressure Gauge
Air Filter
Compressor
Air Chamber
Belt Guard
Electric
Motor
Air Discharge
Connection
Terminal Strip
BMS Display
Burner Management
System
Burner Motor
Starter
Control Relays
Switch / Light Panel
Page 10 Identication
SC Manual
Gas Orice Part Number and Description
SECONDARY
AIR SLOTS
ACCESS COVER
OIL SUPPLY LINE
OIL NOZZLE
CHECK VALVE
SECONDARY GAS CONNECTION
PRIMARY GAS CONNECTION
HOUSING MTG. FLANGE
SECONDARY ORIFICE PLATE
MOUNTING FLANGE
OUTER CYLINDER
PRIMARY
ORIFICE PLATE
SECONDARY ORIFICE TUBES
PRIMARY
GAS MANIFOLD
GAS TUBE
IGNITION HOLDER
INNER CYLINDER
SECONDARY GAS MANIFOLD
ON VESSEL INSERTION DEPTH
DIMENSION WILL VARY DEPENDING
Figure B-8
Drawer Assembly
Ce manuel convient aux modèles suivants
13
Table des matières
Autres manuels Webster Brûleur
