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ONLY FACTORY AUTHORIZED BURNER SERVICE PERSONNEL SHOULD START- UP,
ADJUST, OR SERVICE THIS EQUIPMENT.
WARNING
SC/SERIESInstallation, Operation,Service and Parts Manual
IC-7842/09
3
SC/SERIES TABLE OF CONTENTS
SECTION 1:0PAGE
CHAPTER 1. INTRODUCTIONA. GENERAL INFORMATION .............................................. 2B. DESCRIPTION ................................................................. 2C. STANDARD EQUIPMENT ............................................... 3D. OPTIONAL EQUIPMENT ................................................. 3E. CAPACITIES & OPERATING DATA ................................. 4F. DIMENSIONS .................................................................. 4
CHAPTER 2. INSTALLATIONA. FLAME SAFEGUARD CONTROLS ................................. 6B. INSTALLATION ................................................................ 6C. GAS PIPING .................................................................... 6D. CHECKLIST ..................................................................... 6E. PILOT TURNDOWN TEST .............................................6-7
CHAPTER 3. STARTING UP AND OPERATINGA. PREPARATION FOR INITIAL START-UP ........................ 8B. FIRING PREPARATIONS ............................................... 8C. STARTING PROCEDURES ............................................. 8D. SAFETY SHUTDOWN ....................................................8-9E. FLAME ROD & ELECTRODE ADJUSTMENT ................. 9F. FIRING RATE ADJUSTMENT ......................................... 9
CHAPTER 4. MAINTENANCEA. GENERAL ....................................................................... 11B. PREVENTIVE MAINTENANCE ...................................... 11C. SERVICE SUGGESTIONS ............................................. 12D. ELECTRICAL COMPONENTS ....................................... 12E. SHUTDOWN PROCEDURE ........................................... 13F. RE-START AFTER SHUTDOWN .................................... 13G. MAINTENANCE FLOW CHART ...................................... 14
PAGECHAPTER 5. TROUBLE SHOOTINGBURNER DOES NOT START .............................................. 15NO IGNITION ....................................................................... 15PILOT BUT NO MAIN FLAME .............................................. 16BURNER STAYS IN LOW FIRE ........................................... 16SHUTDOWN DURING FIRING..........................................16-17MODULATING MOTOR DOES NOT OPERATE .................. 17
WARRANTY POLICY........................................................18-19
START-UP AND SERVICE REPORT ................................... 20
PRODUCT SATISFACTION SURVEY ................................. 21
SECTION 2:0PARTS MANUAL
INSTRUCTIONS ...................................................................1-3 MODELS SC-55G & SC-65G PARTS LIST ..........................4-5
Sec1:1
OPERATING PRECAUTIONSThis operating manual presents information that will help to properly operate and care for the equipment. Study its contents carefully. The unit will provide good service and continued operation if proper operating and maintenance instructions are followed. No attempt should be made to operate the unit until the principles of operation and all of the components are thoroughly understood. Only trained and authorized personnel should be allowed to operate, adjust or repair this equipment.
If you are operating a burner(s), it is your responsibility to ensure that such operation is in full accordance with all applicable safety requirements and codes.
Placed on all Industrial Combustion burners are warning or caution labels designed to inform the operator of potential hazards and stress important information.
These symbols and their meanings are as follows:
HAZARD OF ELECTRIC SHOCK !!! MORE THAN ONE DISCONNECT MAY BE RE-QUIRED TO DISCONNECT ALL POWER TO THIS PANEL. SERIOUS PERSONAL INJURY OR DEATH MAY RESULT.
READ PRODUCT MANUAL AND FULLY UNDERSTAND ITS CONTENTS BEFORE-ATTEMPTING TO OPERATE THIS EQUIP-MENT. SERIOUS PERSONAL INJURY OR DEATH MAY RESULT.
TO AVOID PERSONAL INJURY FROM MOVING PARTS, SHUT OFF ALL ELEC-TRICAL POWER BEFORE SERVICING THIS EQUIPMENT.
WARNINGPROVIDE SUPPORT FOR THIS PANEL TO PREVENT DAMAGE TO THE ELEC-TRICAL COMPONENTS.
CAUTION
ONLY FACTORY AUTHORIZED BURNER SERVICE PERSONNEL SHOULD START- UP, ADJUST, OR SERVICE THIS EQUIP-MENT.
CAUTIONAFTER FINAL FUEL INPUT ADJUST-MENTS ARE MADE, VERIFY FUEL IN-PUT BY METER IF POSSIBLE.
CAUTION
WARNING
WARNING
WARNING
FAILURE TO INSTALL AND OPERATE THIS EQUIPMENT IN ACCORDANCE WITH THE MANUFACTURERS RECOMMENDED INSTRUCTIONS AND INDUSTRY STANDARDS AND PRACTICES CAN RESULT IN FIRE, EXPLOSION, PROPERTY DAMAGE AND/OR PER-SONAL INJURY !! READ THIS MANUAL IN IT’S ENTIRIETY PRIOR TO ANY ATTEMPT TO COMMISSION THIS EQUIPMENT. INSTALLATION, STARTUP, OPERATION AND MAINTE-NANCE OF THIS EQUIPMENT MUST BE PERFORMED ONLY BY FACTORY AUTHORIZED, EXPERIENCED AND QUALIFIED PERSONNEL.
Sec1:2
A. GENERAL INFORMATION Industrial Combustion SC/Series burners are assembled, wired and tested at the factory. They are listed by the Un-derwriters Laboratory, cUL, CSD-1, I.R.I., F.M., and other regulatory agency control options are available.
The operator of this equipment must be familiar with the individual functioning of all controls to understand the operations and procedures described in this manual, and supplementary instructions provided with optional controls. Identify and locate each item in the illustrations as they are described in the following sections.
B. DESCRIPTIONThe Industrial Combustion, LLC SC/ Series gas burners fi re natural or manufactured gas, Propane or Butane LP or mixed gases.
Combustion air is provided by a motor driven blower wheel in the burner housing. Firing is at a fi xed rate with an air damper in the housing manually set to match gas input.
Gas input is controlled by a fi xed orifi ce plate and adjust-ment of the main gas regulator. A perforated stainless steel cone in the blast tube produces an intimate mixture of air and gas. A selection of interchangeable orifi ce plate and fi recone assemblies is available to adapt the burner to various input pressures. Ignition is by interruptible electric spark.
Burner operating controls are fully wired and factory tested, housed in the burner-mounted panel. The fl ame safeguard programmer or relay controls the operating sequenc in conjunction with a fl ame rod sensor in the blast tube. A combustion air interlock switch on top of the blower hous-ing prevents the main gas valve from opening if loss of combustion air occurs.
The main gas line shutoff cock, pressure regulator and diaphragm valve are standard equipment. A motorized main gas valve is optional. The pilot line shutoff cock and solenoid valve are also standard. The burner housing is hinged to open for full access to electrode and fl ame rod. A housing interlock switch prevents burner operation un-less the housing is securely closed. Flange mounting is standard.
ONLY FACTORY AUTHORIZED BURNER SERVICE PERSONNEL SHOULD START-UP, ADJUST, OR SERVICE THIS EQUIPMENT
CAUTION
SECTION 1INTRODUCTION
Model designations are based on the type of fuel(s) to be fi red and the amount of furnace pressure to be over-come. Burner size is based on fi ring rate (rated input in BTU/HR).
THE INSTALLATION OF A BURNER SHALL BE IN ACCORDANCE WITH THE REGULATIONS OF AUTHORITIES HAVING JURISDICTION. THE EQUIPMENT MUST BE INSTALLED IN ACCORDANCE WITH APPLICABLE LOCAL, STATE OR PROVINCIAL INSTALLATION REQUIREMENTS INCLUDING THE NATIONAL ELECTRICAL CODE (NEC) AND ASSOCIATED INSURANCE UNDERWRITERS.
GAS BURNING EQUIPMENTS SHALL BE CONNECTED TO FLUES HAVING SUFFICIENT DRAFT AT ALL TIMES, TO ASSURE SAFE AND PROPER OPERATION OF THE BURNER.
Further warning and caution references have been made in this manual and should be adhered to for smooth operation of the burner.
WARNING
CAUTION
NOTE
This symbol precedes information which, if disregarded, may result in injury to the user of the burner or to others.
This symbol precedes information which, if disregarded, may result in damage to the burner.
This symbol precedes information which is vital to the operation or maintenance of the burner.
RATED BURNER INPUTSIZE MBTU/HR
55 950
65 1500
* Gas input based on natural Gas at 1,000 Btu/cu.ft. and 0.60 specifi c gravity. ** Refer to burner nameplate data for correct manifold pressures.
Sec1:3
C. STANDARD EQUIPMENT1. Controls factory wired and tested.
2. 115/1/60 control circuit.
3. Flame safeguard control MEC120 or RM7897, fl ame rod detection (30 second pre-purge).
4. Interruptible electric spark ignition.
5. Combustion air interlock switch.
6. Hinged housing with safety interlock switch.
7. Stainless steel fi recone with fi xed orifi ce plate.
8. Slow opening main gas diaphragm valve.
9. Main gas line shutoff cock and pressure regulator.
10. Pilot gas line shutoff cock, solenoid valve and pres- sure regulator.
11. 3450 RPM motor and blower wheel.
12. Mounting fl ange.
D. OPTIONAL EQUIPMENT1. Control transformer with 115 v. secondary.
2. Motorized main gas valve.
3. Totally enclosed blower motor.
4. U.V. Scanner
Figure 1-1TYPICAL SC-55G / SC-65G GAS BURNER
Sec1:4
E. CAPACITIES AND OPERATING DATASC-55G SC-65G
Flame Safeguard Control (U.L.) Fireye MEC120 Fireye MEC120RM7897 RM7897
Flame Detection Flame Rod Flame RodPugre Time (seconds) -pre-: 90¹ 90¹
-post-: None NoneFirebox Boilers: Overfi re draft, min. (in. W.C.) -0.02” -0.02” **Gas input, max. (MBTU/Hr.) 950 1500 Approximate Boiler HP 22 35Scotch Boilers: Overfi re draft, min. (in. W.C.) +0.05 +0.05 ²Gas input, max. (MBTU/Hr.) 720 1200 Approximate Boiler HP 17 28Blower Motor HP & RPM 1/8-3450 1/3-3450Gas Line Size (In.) 1 1-1/2Gas Valve (In.) 1” Diaphragm or Motorized 1-1/2” Diaphragm or MotorizedGas Pressure Required (In. W.C.) 6 Min. 6 Min.
NOTE:¹ Pre purge time varies based on dip switch settings for Fireye Flame Safeguard Control² Gas input based on .65 S.G. natural gas at 1,000 BTU/cu.ft. Burner also capable of fi ring manufactured gas (.45 S.G. at 550 BTU/cu.ft.), Propane LP gas (1.5 S.G. at 2,550 BTU/cu.ft.) or Butane LP gas (1.95 S.G. at 3,250 BTU/cu.ft.) or mixed gases.
Figure 1-2DIMENSION DIAGRAM FOR SC-55G BURNER
F. DIMENSIONS
556-00001
Sec1:5
DIMENSION DIAGRAM FOR SC-65G BURNER
556-00002
Figure 1-3
Sec1:6
SECTION 2INSTALLATION
A. FLAME SAFEGUARD CONTROLSFor protection in shipment, the fl ame safeguard control chassis is packaged spearately from the burner. Be sure the correct control or relay is used.
Honeywell RM7897: Check all screw connections before attaching fl ame safeguard chassis to base. Screws must be snug to assure low resistance connections. Press the manual reset lever to be sure safety switch contacts are closed.
Fireye MEC120: The relay chassis is mounted on the sub-base with two screws which, when tightened, complete the continuity between chassis and base contacts. Press manual reset button to be sure lockout switch contacts are closed.
B. INSTALLATIONBurner controls are completely factory wired and tested. Tests for adjustment of fuel and air have been made to insure that the burner will operate properly, but initial fi ring checks and adjustments must be made after the burner is installed.
The burner is fl ange mounted. Suitable power must be brought to the burner panel for single or three-phase mo-tor current and 115 volt, 60 cycle, single phase current for controls. Check data plates for ampere ratings. All elec-trical supply wiring must be in accordance with National Electrical Code and all applicable local codes.
C. GAS PIPINGAll gas piping must be in strict accordance with all appli-cable codes and ordinances and the rules of the supply-ing utility. In the absence of other codes, piping should be in accordance with the following ANSI standards:“National Fuel Gas Code” NFPA No. 54, ANSI No. Z 223.1
Gas piping must be carefully installed, cleaned of any for-eign material and have a vertical, full-size “drip pipe” or dirt pocket near the burner. Arrange gas piping connec-tions so the burner can be moved for inspection without dismantling the piping.
D. BURNER INSTALLATION CHECKLIST1. All burners are carefully assembled and tested at the factory, but before being placed in service all connectors should be checked for looseness caused during ship-ment.
Check: a. Electrical terminals in the control panel and on all electrical components. b. Pipe fi ttings and unions.
c. Tubing connections d. Nuts, bolts, screws and other fasteners.
2. Before admitting electrical current to any component, be sure the supply voltage is the same as that specifi ed on the component nameplate.
3. Before continued burner operation, inspect to be sure motor is rotating in the proper direction.
4. Before fi ring, make sure that the fi ring head is properly sealed to the boiler front plate.
5. Make certain that the owner or operator in charge is properly instructed in operation and maintenance proce-dures.
E. PILOT TURNDOWN TESTPerform the pilot turndown test to be certain that the burner will be lit by the smallest possible pilot fl ame that will hold the 2K fl ame relay in.
The following instructions MUST be followed in se-quence:
1. Shut off the burner MAIN fuel supply by closing the MAIN manual shutoff cock. Do NOT shut off fuel to the pilot valve.
2. Start the burner. After prepurge is completed, the pilot will light and pull in the fl ame relay.
3. Reduce the size of the pilot fl ame to turndown condition by slowly closing the manual valve in the pilot gas line. At turndown condition, the pilot fl ame will just barely hold in the relay.
4. Slowly turn down the pilot until the fl ame relay drops out. Allow the control to complete prepurge.
5. As the control attempts to restart the pilot, turn the pilot back up slowly just until the fl ame relay pulls back in. This must be done within 15 seconds before lockout occurs.
6. Turn the pilot back down slightly but NOT enough to cause the fl ame relay to drop out. If it does drop out, al-low the control to run through prepurge and turn the pilot back up to pull the relay back in. The closer the pilot is to dropout, the more conclusive the test will be.
7. Check that the pilot is lit and the fl ame relay is pulled in. Open the main gas shutoff cock. If main fl ame light-off occurs properly, open and close the main shutoff cock a few times to verify consistent lightoff. If the main fl ame does not light off within one second, close the shutoff
Sec1:7
cock and shut off power to the relay. Readjust the fl ame rod so that a larger minimum pilot is required or, U.V. controls, re-sight the photo-cell farther out on the pilot fl ame. Repleat the test procedures until lightoff is established.
8. Turn the pilot up to FULL FLAME after completing the test.
Sec1:8
SECTION 3STARTING UP AND OPERATION
A. PREPARATION FOR INITIAL START-UP When the installation is complete and all electrical, fuel, water and vent stack connections are made, make certain said connections are tight. The operator should become fa-miliar with the burner, boiler controls and components. Ad-justment procedures given in Section 4 should be reviewed prior to fi ring. The wiring diagram should also be studied along with the operating sequence of burner programmer. Check the electrical power supply for accordance with the nameplate specifi cations for all motors and controls.
Read and understand starting instructions before at-tempting to operate the burner. The following checks must be made:
BOILER. Check boiler water level. Be sure all boiler valves are installed correctly and positioned properly. Set the high limit control slightly above the operating control. Set operating control at the desired temperature or pressure.
BURNER. For protection in shipment, the fl ame safeguard control chassis is shipped unmounted. Check all screw connec-tions before attaching fl ame safeguard chassis to base. Screw must be secure to assure low resistance connec-tions. The relay chassis is mounted on the subbase with a screw which, when tightened, completes the connection between the subbase and chassis contacts. Press manual reset button to be sure safety switch contacts are closed.
Check fuses in main panel and in burner control cabinet. Check wiring to the burner control cabinet for compliance with the wiring diagram and local codes. The control cabinet components are 120 volt. If a control transformer is sup-plied, ensure that the supply voltage matches its primary voltage.
Check motor rotation by momentarily closing the starter or relay. Blower rotation is clockwise when viewed from the drive end.
Check the pilot electrode setting. Refer to the ADJUST-MENT section.
Check control linkage for proper movement of the air volume damper and fuel metering components. This can be done by loosening the linkage at the actuator lever and manipulating by hand.
Check the air shutter and adjust low fi re setting. Refer to the ADJUSTMENT section.
B. FIRING PREPARATIONS Check to make certain that all plugs, connections, link-
ages etc., are tight. Prior to initial fi ring, oil fl ow and pres-sure should be verifi ed.
GAS BURNERS A representative of the gas utility should turn on the gas. Determine by a test gauge upstream of the burner regulator that suffi cient pressure exists at the entrance to the gas train. The gas pressure regulator must be adjusted to the pressure required and the pressure setting recorded. On combination fuel models, set the selector switch to gas. On initial start-up it is recommended that the main gas shutoff cock remain closed until the programmer has cycled through pre-purge and pilot sequences to determine that the main gas valve opens. Turn the burner switch “OFF” and let programmer fi nish its cycle. Check to see that gas valve closes tightly.
See the burner specifi cation nameplate inside the con-trol panel door for minimum and maximum input rate and required manifold pressure.
When the conditions covered above and in Section 2 are assured, the burner is ready for fi ring.
C. STARTING PROCEDURES1. Actuate the manual reset of the fl ame safeguard control to be sure safety switch contacts are closed.
2. Close the power entrance switch to supply power to burner.
3. Open gas pilot cock.
4. With all controls calling for heat, turn burner switch on. The blower motor will be energized. Check for proper motor rotation.
5. At the end of the pre-purge period (90 seconds RM7897) the ignition transformer and gas pilot solenoid are ener-gized. Pilot ignition occurs.
6. The fl ame rod, sensing the pilot fl ame, causes the safe-guard control to open the main gas valve, establishing main fl ame. The burner will operate at selected setting until heat-ing demand is satisfi ed, then shut down automatically.
D. SAFETY SHUTDOWNS1. Combustion air loss. If combustion air fails for any reason, the N.C. air switch will remain open, preventing the main gas valve from opening. If air is re-established, purge period begins and start-up sequence is repeated.
2. Pilot ignition failure. If the pilot fl ame fails to ignite, the fl ame rod sensor will not energize the main gas valve. Lockout occurs.
Sec1:9
3. Main fl ame failure. If the main fl ame does not ignite but combustion air is present, the purge period will begin again. Re-light is attempted once more automatically at the end of the purge period. If reignition is not successful, lockout occurs.
4. Purge time failure. If the RM7897 purge timer is not properly seated or functions improperly, the blower mo-tor will start on boiler demand but the main gas valve will not open nor will ignition occur. A continuous purge (safe failure) will occur.
5. Hot refractory hold-in (Photocell only). If hot refractory holds in the safeguard fl ame relay at the end of the cycle, start-up will be prevented. The photocell must be re-sighted properly until hot refractory is no longer sensed.
E. FLAME ROD AND ELECTRODE ADJUST-MENT The fl ame rod and ignition electrode are mounted in holders inside the gas manifold. To open the burner hous-ing, disconnect the two-wire twist lock plug on the cable between the control panel and manifold. Remove the nuts from the studs holding the housing fl ange to the manfi old and swing the housing open carefully. The housing safety switch will open the control circuit while the housing is open. See Figure 3-1 and 3-2. The fl ame rod and electrode are held in position by set screws in the holders. Loosen the set screws to position the components as shown. When settings are adjusted correctly, close the housing, install stud nuts securely and connect the cable.
ELECTRODE AND FLAME ROD ADJUSTMENT SC-55G Figure 3-1
ELECTRODE AND FLAME ROD ADJUSTMENT SC-65G Figure 3-2
Sec1:10
F. FIRING RATE ADJUSTMENT The burner is designed to fi re at a fi xed rate. Set the air shutter manually by loosening the air shutter lock lever wingnut to set the damper plate in desired position. Tighten the wingnut securely after proper position is determined.The rate of gas being burned is regulated by adjusting the main gas pressure regulator. The following table for gas input (based on 1,000BTU/cu.ft.) versus gas pressure for the various fi recone-orifi ce plate assemblies will help determine the gas pressure required.
WARNINGSHOULD A STARTING FAILURE OC-CUR FOR ANY REASON, COMBUSTI-BLE FUMES MAY FILL THE COMBUS-TION CHAMBER. NEVER ATTEMPT TO RE-LIGHT THE BURNER UNDER THESE CONDITIONS WITHOUT FIRST PURGING
WARNINGREAD THE FLAME SAFEGUARD MANU-AL AND FULLY UNDERSTAND ITS CON-TENT BEFORE ATTEMPTING TO OPER-ATE THIS EQUIPMENT.. SERIOUS PER-SONAL INJURY OR DEATH MAY RESULT.
FOR MODEL: SC-55G: INPUT, CU. FT.Firecone &
Orifi ce Plate Part No.
Orifi ce Size No. of Orifi ces 3” W.C.
4” W.C.
5”W.C.
5 1/4”W.C.
275-204 43 16 290 367 404 -275-203 36 16 383 480 553 -275-202 30 16 529 680 774 -275-201 25 16 620 768 900 960
FOR MODEL: SC-65G INPUT, CU. FT.275-210 25 30 1280 1560 1710 -
GAS INPUT (BASED ON 1,000 BTU/ CU. FT.) VS. GAS PRESSURE TABLE Figure 3-3
Sec1:11
SECTION 4MAINTENANCE
A. GENERAL A maintenance program avoids unnecessary down time, costly repairs, and promotes safety. It is recommended that a record be maintained of daily, weekly, monthly, and yearly maintenance activities. Electrical and mechanical devices require systematic and periodic inspection and maintenance. Any “automatic” features do not relieve the operator from responsibility, but rather free him from certain repetitive chores, providing time for upkeep and maintenance. Unusual noise, improper gauge reading, leak, sign of overheating, etc., can indicate a developing malfunction, requiring corrective action.
B. PREVENTIVE MAINTENANCE1. Inspect the burner thoroughly at least once a month.2. Clean any accumulated dust from the blower blades.3. Lubricate the blower motor according to the manufac- turer’s instructions.4. Never burn garbage or refuse in the furnace. Keep scrap paper, rags and trash from accumulating around the heating system area.5. For location and identifi cation of burner components, refer to Figure 4-1.
BURNER COMPONENTS Figure 4-1
Sec1:12
c. Loss of combustion air, causing air switch to lockout. Check blower and motor for proper operation and rota-tion.
d. Improper electrode setting. See Section 3.
e. Faulty ignition transformer, faulty cable insulation or cracked electrode porcelain.
D. ELECTRICAL COMPONENTS1. Flame safeguard: The control panel box in which the programmer is located should be kept closed at all times to avoid getting dust and dirt on the relay contacts. DO NOT remove parts or attempt repair of the control. See the manufacturer’s bulletin for checkout procedure.
2. Ignition transformer: The transformer requires little at-tention. It is of the 6,000 volt secondary type with radio interference shielding. If ignition problems occur, check the following:a. Secure connection of ignition cable to transformer sec-ondary post.
b. Electrode for correct adjustment and secure position in holder, with cable properly connected.
c. Proper voltage applied to the transformer primary coil.
d. Ignition cable, insulators and electrode clean and unbro-ken. Too wide an electrode gap, broken or dirty electrode or cable will cause a weak spark. If the spark is still weak after checking these, the transformer should be replaced.
3. Electrode and ignition cable: Proper positioning and cleanliness of electrode are vital. Defective or cracked electrode porcelain requires replacement of the electrode to prevent short circuit of spark. Gradual wear of the electrode tip requires periodic re-spacing of the gap to 1/8”. The ignition calbe is rated at 15,000 volts, well above transformer voltage. The cable must not be exposed to moisture, abrasion or rough handling. Connectors must be in perfect contact with the cable ends. Unscrew the snap portion of connectors to inspect contact. If the cable insula-tion becomes cracked or charred, it should be replaced.
4. The single-phase motor has integral manual reset over-load protectors. If the motor becomes overheated due to abnormal running conditions, it will be necessary to allow the heater coils to cool several minutes before the circuit breaker interlock switch will hold in contact. If the motor continually goes off on safety, check the following:a. That line voltage is the same as shown on the name-plate.
b. That motor has been wired for the right voltage.
c. That the motor does not exceed the temperature rise specifi ed on the motor plate.
WARNINGWHEN REPLACING A CONTROL OR CLEANING CONTACTS, BE SURE TO DISCONNECT THE MAIN POWER SUPPLY SINCE THE CONTROL IS ENER-GIZED EVEN THOUGH THE BURNER SWITCH IS OFF. MORE THAN ONE DISCONNECT SWITCH MAY BE REQUIRED TO DISCONNECT ALL POWER.
CAUTIONAny cover plates, enclosures, or guards anchored to the burner, or any burner related equipment, must remain in position at all times. Only during maintenance and service shutdown can these cover plates, enclosures, or guards be allowed to be removed. They must be replaced, and securely anchored before testing, adjusting, or running the burner or burner related equipment.
WARNINGONLY FACTORY AUTHORIZED BURNER SERVICE PERSONNEL SHOULD START-UP, ADJUST, OR SER-VICE THIS EQUIPMENT
C. SERVICE SUGGESTIONS1. If the blower motor fails to start:a. Check the motor and control circuit fuses. b. Be sure the power entrance switch is closed. c. Be sure the operating control, thermostat, limit and water level controls are making proper contact.
2. If the motor runs but the burner will not ignite:a. Check for burned electrode and cracked porcelain.
b. Check for burned out ignition transformer.
c. Check air-fuel ratio adjustment.
d. Check fl ame safeguard and fl ame rod for proper function. Safeguard control information can be found in the control manufacturerer’s bulletin.
3. Failure to establish adequate pilot might be caused bya. Excessive gas supply pressure, causing regulator to lock up to solenoid to fail to open.
b. Lack of adequate gas pressure. Gas pressure of 6” W.C. minimum must be provided at full fl ow to obtain maximum burner capacity.
Sec1:13
d. That the motor turns freely, in the proper direction.
e. That the fan is not binding on the housing.
If the voltage goes more than 10% over or under rated voltage, even momentarily, trouble with the motor and controls may result.
E. SHUTDOWN PROCEDUREFor a short shutdown period, open the power switch or adjust the thermostat or operating control to a low setting. For a seasonal or long term shutdown, open all power switches, close all manual gas valves and cover the burner to protect from dust and moisture.
F. RE-START AFTER SHUTDOWNIn the fall, all boiler or furnace heating surfaces should be thoroughly brushed or vacuumed clean. Check all safety controls for proper operation and go through the complete lightoff procedure outlined in Section 3.
Sec1:14
G. MAINTENANCE FLOW CHART RECOMMENDED TEST SCHEDULE
ITEM SERVICE BY REMARKS DAILY
Gauges, Monitors, Operator Make visual inspection and record readings in log. and Indicators
Instrument and Equipment Operator Make visual check against recommended specifi cations. Settings
Low water, Fuel cut-off Operator Refer to instructions. and Alarms
WEEKLY
Firing rate control Operator Verify factory settings
Igniter Operator Make visual inspection. Check fl ame signal strength.
Pilot and Main Fuel Valves Operator Open limit switch. Make audible and visual check. Check valve position indicators, and check fuel meters.
Flame Failure Controls Operator Close manual fuel supply for (1) pilot and (2) main fuel cock and/or valve(s). Check safety shutdown timing. Record in log.
Flame Signal Strength Operator Read and log the fl ame signal for both pilot and main fl ame. Notify Controls Service if readings are very high, very low, or fl uctuating.
Linkages Operator Check all burner linkages for tightness. Tighten if required.
MONTHLY
Low Fan Pressure Operator Manually adjust until switch opens. Interlock
High and Low Gas Operator Refer to instructions. Manually adjust until switch opens. Pressure Interlocks
Scanner and Diffuser Operator Check, inspect and clean for soot buildup.
Pilot Assembly Operator Check for loosening of components, erosion or carbon buildup.
ANNUALLY
Strainer (Oil units) Operator Replace or clean the oil strainer element.
Impeller Operator Inspect and clean the combustion impeller.
Combustion Test Service Perform a complete combustion test. Adjust burner if necessary. Technician Read and Log data. Pilot turndown Test Service Required after any adjustment to fl ame, scanner, or pilot Technician adjustment
Operating Controls Service Refer to instructions. Technician
Sec1:15
SECTION 5TROUBLE SHOOTING
PROBLEM SOLUTION
BURNER DOES NOT START 1. No voltage at program relay power input terminals. a. Main disconnect switch open. b. Blown control circuit fuse. c. Loose or broken electrical connection. 2. Program relay safety switch requires resetting. 3. Limit circuit not completed - no voltage at end of limit circuit program relay terminal. a. Pressure or temperature is above setting of operation control. b. Water below required level. Low-water light (and alarm horn) should indicate this condition. Check manual reset button, if provided, on low -water control. c. Fuel pressure must be within settings of low pressure and high pressure switches. d. Check burner air proving switch and high fi re limit switch.
4. High or Low gas pressure - investigate and repair.
NO IGNITION 1. Lack of spark. a. Electrode grounded or porcelain cracked. b. Improper electrode setting. c. Loose terminal on ignition cable; cable shorted. d. Inoperative ignition transformer. e. Insuffi cient or no voltage at pilot ignition circuit terminal. 2. Spark but no fl ame. a. Lack of fuel - no gas pressure, closed fuel valve, empty tank, broken line b. Too much air fl ow. c. No voltage to pilot solenoid. d. Defective pilot solenoid. e. Improperly positioned electrode (Direct spark models). 3. Low fi re switch open in low fi re proving circuit. a. Damper motor not closed, slipped cam, defective switch. b. Damper jammed or linkage binding. 4. Running interlock circuit not completed. a. Combustion proving switches defective or not properly set. b. Motor starter interlock contact not closed. 5. Flame detector defective, sight tube obstructed, or lens dirty.
Sec1:16
TROUBLE SHOOTING PROBLEM SOLUTION
PILOT FLAME, BUT NO MAIN FLAME
BURNER STAYS IN LOW FIRE
SHUTDOWN OCCURS DURING FIRING
1. Insuffi cient pilot fl ame. 2. Gas fi red unit. a. Manual gas cock closed. b. Main gas valve inoperative. c. Gas pressure regulator inoperative. 3. Oil fi red unit. a. Oil supply cut off by obstruction, closed valve, or loss of suction. b. Supply pump inoperative. c. No fuel. Broken, loose or missing oil pump coupling. d. Main oil valve inoperative. e. Check oil nozzle, gun and lines.
4. Flame detector defective, sight tube obstructed or lens dirty.
5. Insuffi cient or no voltage at main fuel valve circuit terminal.
1. Pressure or temperature above modulating control setting. 2. Manual-automatic switch in wrong position. 3. Inoperative modulating motor. 4. Defective modulating control. 5. Binding or loose linkages, cams, setscrews etc.
1. Loss or stoppage of fuel supply. 2. Defective fuel valve; loose electrical connection. 3. Flame detector weak or defective. 4. Scanner lens dirty or sight tube obstructed. 5. If the programmer lockout switch has not tripped, check the limit circuit for an opened safety control.
Sec1:17
TROUBLE SHOOTING
PROBLEM SOLUTION
SHUTDOWN OCCURS DURING FIRING (cont).
6. If the programmer lockout switch has tripped. a. Check fuel lines and valves. b. Check fl ame detector. c. Check for open circuit in running interlock circuit. d. The fl ame failure light is energized by ignition failure, main fl ame failure, inadequate fl ame signal, or open control in the running interlock circuit. 7. Improper air/fuel ratio. a. Slipping linkage. b. Damper stuck open. c. Fluctuating fuel supply. Temporary obstruction in the fuel line. Temporary drop in gas pressure.
8. Interlock device inoperative or defective.
9. Air in the oil lines. Bleed lines.
MODULATING MOTOR DOES NOT OPERATE
1. Manual-automatic switch in wrong position. 2. Linkage loose or jammed. 3. Motor does not drive to open or close during pre-purge or close on burner shutdown. a. Motor defective. b. Loose electrical connection. c. Damper motor transformer defective.
4. Motor does not operate on demand. a. Manual/automatic switch in wrong position. b. Modulating control improperly set or inoperative. c. Motor defective. d. Loose electrical connection. e. Damper motor transformer defective.
Sec1:18
A. LIMITED WARRANTY The Company warrants that at the time of shipment, the equipment manufactured by it shall be merchantable, free from defects in material and workmanship and shall possess the characteristics represented in writing by the Company. The Company’s warranty is conditioned upon the equipment being properly installed and maintained and operated within the equipment’s capacity under normal load conditions with competent supervised operators. Equipment, accessories and other parts and components not manufactured by the Company are warranted only to the extent of and by the original manufacture’s warranty to the Company; In no event shall such other manufacturer’s warranty create any more extensive warranty obligations of the Company to the Buyer than the Company’s warranty covering equipment manufactured by the Company.
B. EXCLUSIONS FROM WARRANTY (I) THE FOREGOING IS IN LIEU OF ALL OTHER WARRANTIES, ORAL OR EXPRESS OR IMPLIED, INCLUDING ANY WARRANTIES THAT EXTEND BEYOND THE DESCRIPTION OF THE EQUIPMENT. THERE ARE NO EXPRESS WARRANTIES OTHER THAN THOSE CONTAINED HEREIN TO THE EXTENT PERMITTED BY THE LAW. THERE ARE NO IMPLIED WARRANTIES OF FITNESS FOR A PARTICULAR PURPOSE. THE PROVISIONS AS TO DURATION, WARRANTY ADJUSTMENT AND LIMITATION OF LIABILITY SHALL BE THE SAME FOR BOTH IMPLIED WARRANTIES (IF ANY) AND EXPRESSED WARRANTIES. (II) The Company’s warranty is solely as stated in (a) above and does not apply or extend, for example, to: expendable item; ordinary wear and tear; altered units; units repaired by persons not expressly approved by the Company; materials not of the Company’s manufacture; or damage caused by accident, the elements, abuse, misuse, temporary heat, overloading, or by erosive or corrosive substances or by the alien presence of oil, grease, scale, deposits or other contaminants in the equipment.
C. WARRANTY ADJUSTMENT Buyer must make claim of any breach of any warranty by written notice to the Company’s home offi ce within thirty (30) days of the discovery of any defect. The Company agrees at its option to repair or replace, BUT NOT INSTALL, F.O.B. Company’s plant, any part or parts of the equipment which within twelve (12) months from the date of initial operation but no more than eighteen (18) months from date of shipment shall prove the Company’s satisfaction (including return to the Company’s plant, transportation prepaid, for inspection, if required by the Company) to be defective within the above warranty. Any warranty adjustments made by the Company shall not extend the initial warranty period set forth above. Expenses incurred by Buyer in replacing or repairing or returning the equipment or any part or parts will not be reimbursed by the Company.
D. SPARE AND REPLACEMENT PARTS WARRANTY ADJUSTMENT The Company sells spare and replacement parts. This subparagraph (d) is the warranty adjustment for such parts. Buyer must make claim of any breach of any spare or replacement parts by written notice to the Company’s home offi ce within thirty (30) days of the discovery of any alleged defect for all such parts manufactured by the company. The Company agrees at its option to repair or replace, BUT NOT INSTALL, F.O.B. Company’s plant, any part or parts or material it manufacture which, within one (1) year from the date of shipment shall prove to Company’s satisfaction (including return to the Company’s plant, transportation prepaid, for inspection, if required by the Company) to be defective within this part warranty. The warranty and warranty period for spare and replacement parts not manufactured by the company (purchased by the Company, from third party suppliers) shall be limited to the warranty and warranty adjustment extended to the Company by the original manufacturer of such parts; In no event shall such other manufacturer’s warranty create any more extensive warranty obligations of the Company to the Buyer for such parts than the Company’s warranty adjustment covering part manufactured by the Company as set forth in this subparagraph (d). Expenses incurred by Buyer in replacing or repairing or returning the spare or replacement parts will not be reimbursed by the Company.
warranty policy
Sec1:19
E. LIMITATION OF LIABILITY The above warranty adjustment set forth Buyer’s exclusive remedy and the extent of the Company’s liability for breach of implied (if any) and express warranties, representations, instructions or defects from any cause in connection with the sale or use of the equipment. THE COMPANY SHALL NOT BE LIABLE FOR ANY SPECIAL, INDIRECT OR CONSEQUENTIAL DAMAGES OR FOR LOSS, DAMAGE OR EXPENSE, DIRECTLY OR INDIRECTLY ARISING FROM THE USE OF THE EQUIPMENT OR FROM ANY OTHER CAUSE WHETHER BASED ON WARRANTY (EXPRESS OR IMPLIED) OR TORT OR CONTRACT, and regardless of any advices or recommendations that may have been rendered concerning the purchase, installation, or use of the equipment.
START-UP / SERVICE REPORT
Test ConductedGAS OIL
Low 50% High Low 50% HighFiring Rate MMBtu / gph
Stack Temp (Gross) oF
Room Temp oF
O2%
CO2%
CO (PPM)
NOx (PPM)
Smoke (Bacharach)
Combustion Eff.%
Stack Draft "W.C.
Furnace Pressure "W.C.
Blast tube Pressure "W.C.
Steam Pressure PSIG
Water Temperature oF
Supply oil pressure PSIG
Return oil pressure PSIG
Vacuum oil pump "HG
Oil Temperature
Atom. air pressure
Gas Pressure @ Burner Inner Manifold
Manifold "W.C. Outer Manifold
Center Gas pressure "W.C.
Gas Pressure @ Regulator Inlet PSIG
Gas Pressure @ Regulator Outlet PSIG
Pilot Gas Pressure @ Regulator Outlet "W.C.
Flame Signal Main Low 50% High
Voltage AmperageElectric Motors L1 L2 L3 L1 L2 L3
Control VoltageBlower MotorAir CompressorAir-Oil or Metering
Adjusted by:
Date:
Accepted by:
(Signature Required)
The following information should be fi lled in by the service technician at start-up or after any adjustment to the burner.
A copy of the start-up report MUST be returned to IC in order to validate the warranty of the burner.
Burner Model Serial Number Start-up Date
Control Checks Test Set PointLow Water Cut OffAux. LWCOHigh Water Cut OffOperating LimitHigh LimitOperating ControlStack Temp InterlockFlame FailureCombustion Air SwitchHigh Purge SwitchLow Fire InterlockOil Pressure SwitchOil Valve with P.O.C.InterlockHigh Gas Pressure SwitchLow Gas Pressure SwitchGas Valve P.O.C. InterlockPilot Turndown TestFlame Signal Pilot
(For Low NOx Burners)Blast Tube Temp. InterlockFGR Line Purge SwitchFGR Valve P.O.C. Switch
Comments:
PRODUCT SATISFACTIONSURVEY
As a requirement of our ISO certifi cation, please fi ll-in this form and return to Industrial Combustion.Please rate your satisfaction with the following:
Delivery timeApperance of equipment after deliveryPiping and tubingWiringAll components arrived with equipmentEase of start-upPerformance of equipmentQuality of information provided Sales Engineering Service PartsOverall way any problems were handled
Burner Model Serial Number
Poor Good Excellent
Date: By:
SC/SERIESPartsManual
Sec2:1
SC /SERIES PARTS SECTION
INSTRUCTIONS FOR THE USE OF THIS PART BOOKWHEN ORDERING REPAIR PARTS, PLEASE INCLUDE PART NUMBER, THE BURNER SERIAL NUMBER, MODEL, SIZE, AND VOLTAGE. THE INFORMATION CAN BE OBTAINED FROM THE BURNER NAMEPLATE AND THE VOLTAGE FROM THE DATA LABEL ON THE PANEL DOOR.
WHEN ORDERING FAN WHEELS, GIVE THE OVERALL DIAMETER, WIDTH, BORE, MANUFACTURER, AND MOTOR HP.
THIS PARTS BOOK DOES NOT INCLUDE SUCH COMMON HARDWARE ITEMS AS NUTS, WASHERS, ELEC-TRICAL PARTS, COPPER TUBING, FLARE FITTINGS, AND PIPE. ITEMS SUCH AS THESE CAN BE READILY PURCHASED LOCALLY.
THE FOLLOWING PARTS ARE SOLD ON EXCHANGE BASIS: OIL-AIR METERING PUMPS, OIL AND AIR PUMPS, BEARING ASSEMBLY, AIR MODULATORS, AND RELIEF VALVES.
PARTS SHIPPING POLICYALL ORDERS FOR STOCKED ITEMS WILL BE PROCESSED AND READY FOR SHIPMENT WITHIN (24) HOURS OF ITS RECEIPT.
AIR SHIPMENTS (U.P.S. OR OTHERWISE) WILL BE SHIPPED THE SAME DAY IF ORDER IS RECEIVED BE-FORE 2:30 P.M. (WEATHER PERMITTING).
GROUND SHIPMENTS TO WISCONSIN AND BORDERING STATES WILL BE SHIPPED THE SAME DAY UPON REQUEST.
ALL PARTS ORDERS AND EXHCNAGE PARTS MUST BE SENT TO:
INDUSTRIAL COMBUSTION351 -21st STREET
MONROE, WISCONSIN 53566
PLANT PHONE: (608) 325-3141FAX: (608) 325-4379
PARTS DIRECT: (608) 325-5003FAX: (608) 329-3190
Sec2:2
RETURN GOODS PROCEDURES (CREDIT OR REPLACEMENT PARTS)
Defective WARRANTY PARTS OR PARTS to be repaired are not to be returned to the PARTS DEPARTMENT without calling for a RETURN GOODS AUTHORIZATION NUMBER.
1) Before any item is RETURNED, PLEASE CALL THE PARTS DEPARTMENT TO OBTAIN AN RGA (RETURN GOODS AUTHORIZATION) NUMBER. PLEASE HAVE THE FOLLOWING INFORMATION AVAILABLE WHEN CALLING:
A) PART NUMBER OF ITEM B) DESCRIPTION OF ITEM C) REASON FOR THE RETURN WITH A FULL DESCRIPTION OF THE DEFECT(S) D) PARTS ORDER OR SALES ORDER ITEM WAS PURCHASED ON E) NAME, ADDRESS, AND DATE OF INSTALLATION F) DO YOU WANT CREDIT OR REPLACEMENT BEING ISSUED
2) Once an RGA number HAS BEEN ISSUED, THE ITEM MAY BE RETURNED. YOU WILL HAVE THIRTY (30) DAYS TO RETURN THE ITEM FROM THE DATE OF THE RGA BEING ISSUED OR THERE WILL BE A 10% HANDLING CHARGE.
3) RETURNED GOODS MUST HAVE THE RGA NUMBER APPEARING ON THE ADDRESS LABEL ATTACHED TO THE OUTSIDE OF THE BOX BEING RETURNED. IF THE RGA NUMBER IS NOT ON THE LABEL, YOUR CREDIT MAY BE DELAYED AND THERE WILL BE A $50.00 SERVICE CHARGE FOR PAPERWORK. ALL NEW PARTS RETURNED TO THE FACTORY WILL BE CHARGED WITH A 25% RESTOCKING FEE. PLEASE NOTE:FAILURE TO PROVIDE COMPLETE AND CORRECT INFORMATION MAY RESULT IN DELAYED OR CREDIT REFUSAL.
RETURN OF WARRANTY PARTS: WARRANTY PARTS MUST BE RETURNED TO THE FACTORY FREIGHT PREPAID, WITHIN THIRTY (30) DAYS AFTER A NEW PART HAS BEEN RECEIVED OR THERE WILL BE A 10% HANDLING CHARGE.
SHIPPING CHARGES: ON A WARRANTY PART, WE WILL ASSUME STANDARD SHIPPING CHARGES. THIS DOES NOT INCLUDE SPECIAL HANDLING SUCH AS AIR FREIGHT, U.P.S. NEXT DAY AIR SERVICE, OR U.P.S. SECOND DAY AIR SERVICE, ETC.
MOTOR WARRANTY POLICY:THE FOLLOWING PROCEDURE MUST BE USED FOR PROPER REPLACEMENT AND/OR REPAIR OF ELECTRIC MOTORS THAT HAVE FAILED UNDER WARRANTY.
1) Remove motor from unit and take motor to a MANUFACTURER AUTHORIZED SERVICE STATION.
2) The service station will determine the warranty status by INSTALLATION DATE OF THE UNIT, AND DATE OF FAILURE, along with the age of the motor, determined by the CODE DATE.
3) If the unit is within warranty, the unit will be inspected for cause of failure and repair requirements.
4) If the unit is within warranty limitations, the service station will repair on a "NO CHARGE" basis.
5) If the repairs are extensive, the service station will contact the motor manufacturer warranty manager to decide if the motor is to be repaired or replaced.
EXCEPTION TO THE ABOVE PROCEDURE:EMERGENCY SITUATIONS MAY DICTATE THAT BECAUSE OF THE DISTANCE BETWEEN USER AND AUTHORIZED SERVICE STATIONS, SEVERE DAMAGE OR INTERRUPTIONS MAY RESULT.
THE FOLLOWING PROCEDURE SHOULD BE USED: 1) SELECT A KNOWLEDGEABLE MOTOR REPAIR SHOP. 2) REPAIR SHOP TO CONTACT MOTOR MANUFACTURER WARRANTY REPAIR MANAGER, DETAILING REPAIRS NECESSARY ALONG WITH THE COMPLETE NAMEPLATE DATA BEFORE ANY REPAIRS ARE MADE.
3) IF ANY PROBLEMS OCCUR, THE INDUSTRIAL COMBUSTION PARTS DEPT. WILL PROVIDE ASSISTANCE.
Sec2:3
FAILURE TO FOLLOW THE NEXT PROCEDURE WILL RESULT INREPAIRS BEING MADE AT THE CUSTOMERS EXPENSE.
*MARATHON ELECTRIC - ELECTRIC MOTORS WARRANTY REPAIR PROCEDURE
THE FOLLOWING PROCEDURE MUST BE USED FOR PROPER REPLACEMENT AND/R REPAIR OF MARATHON ELECTRIC MOTORS THAT HAVE FAILED UNDER WARRANTY.
1) END USER WILL REMOVE MOTOR FROM UNIT AND TAKE FAILED MOTOR TO MARATHON ELECTRIC AUTHORIZED SERVICE STATION.
2) SERVICE STATION WILL DETERMINE WARRANTY STATUS BY INSTALLATION DATE OF UNIT AND DATE OF FAILURE ALONG WITH AGE OF MOTOR DETERMINED BY DATE CODE.
3) IF WINTHIN WARRANTY LIMITATIONS, UNIT WILL BE INSPECTED FOR CAUSE OF FAILURE AND REPAIR REQUIREMENTS. DETERMINATION WILL BE MADE THAT FAILURE WAS CAUSED BY DEFECT IN MATERIALS OR WORKMANSHIP AND NOT BY MISUSE, ABUSE, ACCIDENT, OR OTHER EXCLUSIONS LISTED IN OUR WARRANTY.
4) IF MINOR REPAIR IS REUIRED, SERVICE STATION WILL REPAIR MOTOR AND RETURN TO USER ON A "NO CHARGE" BASIS.
5) IF MAJOR REPAIR (REWIND) IS REQUIRED, SERVICE STATION MAY:
A) REWIND MOTOR AND RETURN TO USER ON A "NO CHARGE" BASIS IF USER REQUIREMENT IS NOT AN EMERGENCY AND REPAIR CAN BE MADE WITHIN MARATHON ELECTRIC PRICE GUIDELINES, OR
B) NAMEPLATE WILL BE REMOVED AND ALONG WITH A REPORT OF CAUSE OF FAILURE WILL BE GIVEN TO THE USER.
6) USER WILL PRESENT NAMEPLATE AND REPORT TO DISTRIBUTOR.
7) DISTRIBUTOR WILL FURNISH USER WITH A NEW MOTOR, NO CHARGE, EITHER FROM HIS INVENTORY OR SECURE REPLACEMENT UNIT DIRECT FROM PARENT ORGANIZTION.
*MARATHON ELECTRICWARRANTY REPAIR PROCEDURE, DPN-79-113
ELECTRIC MOTORS, 48-215 FRAME
Sec2:4
MODELS SC-55G & SC-65G PARTS LIST
Sec2:5
MODELS SC-55G & SC65G PARTS LISTITEM NO. PART DESCRIPTION
1 40-509 BURNER HOUSING (SC-55G)
40-507 BURNER HOUSING (SC-65G)
2 108-53 SET, DAMPER REGULATOR
3 817-581 AIR INTERLOCK SWITCH
4 836-301 HOUSING INTERLOCK SWITCH
5 951-93 BLOWER WHEEL
6 894-1016 MOTOR, 1/8 HP, 115/1/60, 3450 RPM (SC-55G)
894-1013 MOTOR, 1/3 HP, 115/1/60, 3450 RPM (SC-65G)
7 22-146 DAMPER PLATE (SC-55G)
22-147 DAMPER PLATE (SC-65G)
8 67-500 ROD, DAMPER
9 8-1054 HOLDER, ELECTRODE & FLAME ROD (2)
9A 10-1050 INSULATOR BUSHING (2)
10 40-505 GAS MANIFOLD
11 90-750 BLAST TUBE (SC-55G)
90-764 BLAST TUBE (SC-65G)
12 275-200 ORIFICE PLATE & FIRE CONE, 190 TO 261 M/BTU (SC-55G)
275-204 ORIFICE PLATE & FIRE CONE, 290 TO 404 M/BTU (SC-55G)
275-203 ORIFICE PLATE & FIRE CONE, 383 TO 553 M/BTU (SC-55G)
275-202 ORIFICE PLATE & FIRE CONE, 529 TO 774 M/BTU (SC-55G)
275-201 ORIFICE PLATE & FIRE CONE, 620 TO 960 M/BTU (SC-55G)
275-210 ORIFICE PLATE & FIRE CONE, 950 TO 1500 M & BTU (SC-65G)
13 873-501 ELECTRODE, IGNITION
14 873-56 FLAME ROD (SC-55G)
873-505 FLAME ROD (SC-65G)
15 29-1066 ADAPTER FLANGE (SC-65G)
16 29-1060 FLANGE, BLAST TUBE (SC-65G)
17 29-1055 FLANGE, BLAST TUBE (SC-55G)
GAS TRAIN
817-582 PRESSURE REGULATOR, 1” (SC-55G)
817-622 PRESSURE REGULATOR, 1 1/2” (SC-65G)
940-1103 GAS VALVE, DIAPHRAGM, 1” (SC-55G)
940-1090 GAS VALVE, DIAPHRAGM, 1 1/2” (SC-65G)
941-557 SHUT-OFF COCK, 1” (SC-55G)
941-559 SHUT-OFF COCK, 1 1/2” (SC-65G)
940-1123 VALVE, PILOT SOLENOID
825-136 SHUT-OFF COCK, PILOT
CONTROL SYSTEM
836-264 TOGGLE SWITCH, SPDT
833-961 CHASSIS, FLAME SAFEGUARD, TFM-2A-30
833-963 BASE, FLAME SAFEGUARD, TFM-2A-30
833-966 RELAY, FLAME SAFEGUARD, R4795
833-989 BASE, FLAME SAFEGUARD, R4795
832-698 AMPLIFIER, R7289
832-700 TIMER, 30 SEC.
833-981 RELAY, UVM2A-30
817-632 SCANNER, U.V.
832-107 TRANSFORMER, IGNITION
832-645 HOLDER, FUSE
832-648 FUSE, 15 AMP
