HEATMASTER & MILITARY 401 OIL BURNING FURNACE INSTRUCTIONS Genisys 7505 Primary Control Beckett AFG Oil Burner Manufacturers of Quality Equipment Since 1910 PO Box 658 303 S. Main St. George, IA. 51237 Phone 888-475-3317 Fax 712-475-3490 www.siebringmfg.com Email sales@siebringmfg.
Table of Contents Page Subject 1. 2. Cover Table of Contents 3. 4. New Installations 401 Specific 5. 6. Main Power Connection Blower motor & Typical wiring 7. 8. 401 Specific Wiring Baldor Motor Wiring Schematic 9. Fan & Limit Control 10. “CleanCut” Fuel Pump 11. Beckett Burner Wiring 12. Burner Info. 13. Burner Specifications 14. Burner Specifications continued – Genisys Primary Control 15. Burner Specifications continued - igniter 16. Burner Specifications continued - Cad Cell 17.
NEW INSTALLATIONS FOR SIEBRING FURNACES This appliance is manufactured for commercial and industrial use. This appliance shall be installed in accordance with the standard for the installation of oil burning equipment. NFPA31 (Latest version) Uncrate the furnace and block up level. Use nonflammable blocks. Do not rest on flammable material. Allow 12” on any side and 18” space from the top to any flammable walls or materials in storage. Install chimney with the barometric damper.
401 Specific Fill tank with # 2 diesel fuel or heating fuel. DO NOT use gasoline! The tank holds approximately 250 U.S. gallons. The burner is served with a two-pipe system; supply & return. The fuel filter is installed on the supply line. The pump should prime itself. The return line prevents cavitation. Make sure the connections are tight and have not loosened in shipment. The chimney is held in place by nuts threaded onto studs mounted to the furnace. The shield should be facing the tent material.
SQUARE D BREAKER BOX – HM Power Hook-up 120VAC Ground Common L1, Line In Ground Lug 25 To Burner Neutral To Blower Motor To Fan & Limit Switch 5
Fan & Limit Switch 25 A Motor & Blower assembly (opposite end of furnace) ! WARNING: Failure to provide a proper electrical ground could result in electric shock or fire. -Typical Heatmaster Wiring: -Provide furnace with its own separate electrical circuit from the building’s main breaker panel and a means of circuit protection. - Wire size to be determined by local code.
401 Wiring Breaker Box Thermostat Front View Power & thermostat wires from burner Fan & Limit switch Power cord BELT GUARD Rear View Burner power wires to breaker box Thermostat wires ! WARNING: Failure to provide a proper electrical ground could result in electric shock or fire.
Baldor Electric Motor Wiring – Low Voltage (MIL 401) (Excludes CF & HW350) 3 1 2 3 4 5 8 J 2 5 8 J 1 4 LINE Heat Master Wires Note: Interchange 5 and 8 leads to reverse rotation Heat Master Counter Flow & Heatwave 350 3 1 2 3 4 5 8 J 2 8 J 1 4 LINE Heat Master Wires 8 5
Fan & Limit Control Fan Off: 90 Fan On: 110 High limit: 170 To Fan Motor To Burner Settings 90 110 170 Hot, connect to either side Manual Fan Switch Brass Jumper Caution: When adjusting set point levers, hold the scaleplate dial to keep it from turning and straining the sensing equipment Cover Note: For constant fan operation, push manual fan switch in. For fan to cycle automatically, pull button out.
Beckett “CLEANCUT” Fuel Pump – A2EA-6520 NOZZLE PORT 3/16” FLARE FITTING BYPASS SOLENOID VALVE CORD SET BLEED PORT Beckett CLEANCUT INLET PORT ¼ NPTH RETURN PORT ¼ NPTH (INSTALL 1/16” BYPASS PIPE PLUG FOR TWO-PIPE SYSTEM ONLY, USE 5/32” ALLEN WRENCH).
4. 1. 1. 2. 6. 2. 3. 10. 7. 8. 5. 9. Beckett AFG Burner to Furnace Wiring (Genisys 7505) 1. Two primary control wires (L1 - black & L2 - white) are connected to the 120V power source (blue L1 & white L2). This has the function of powering the burner, which in turn sends power to the igniter, burner motor, solenoid valve and 24V control circuit. 2. The two yellow wires connect to the cad cell eye and the relay as a “flame out” safety shutdown after 15 seconds (Genisys 7505). 3.
1. 2. 3. 4. The burner is held in place by three, ⅜” X 16 NC thread studs and nuts. The white fiber disk is a flame resistant material and acts as a burner gasket. 2 Pressure gauge port. Electrodes and nozzle are accessible by accomplishing the following steps: - loosen the igniter hold-down clips (4).
Burner Specifics The Beckett AFG Oil Burner 2 The flame retention burner uses # 1 or # 2 heating or diesel fuel. The flame looks short (12 – 14”) and medium yellow. The air tube (1.) is 5” for Siebring products. Pictured are the primary control (2.), the 1/7th HP motor (3.) and the 20,000 volt igniter (4.). The burner has a 15 sec. auto shut down if there is no fuel, flame or the cad cell eye is dirty. 4 1 3 The fuel pump is factory set to 100 PSI. This insures proper atomization of the fuel.
Genisys Primary Control Beckett MODEL 7505 THERMOSTAT (T W T R) 7505B-1500 Pre Post 15 0 TW - TR Lockout 15 Front Decal igniter (HOT) igniter (COMMON) MOTOR (HOT) MOTOR (COMMON) LIMIT L 1 (HOT) L 2 (COMMON) VALVE (HOT) VALVE (COMMON) CAD CELL Reset Button Operation Flashing = Soft Lockout Continuous = Hard Lockout Hold 15 sec to reset from hard lockout 14
Burner Specifics (continued) The “TW ” and “TR” terminals, normally the location of the thermostat wires, have a jumper installed to simulate a call for heat (Genisys 7505). The R8184G is installed on some models. The R8184 does not have the circuitry for the pump solenoid “valve on” delay, ignition delay and purge cycle. Note: When purchasing a replacement primary control, please make note of the model number.
Cad Cell Eye Assembly mounted to the igniter. Cad Cell Eye Assembly removed from the igniter. Cad Cell Eye Assembly. Sensor eye unplugged from mounting socket. The cad cell is the sensor that tells the primary control that the fire is burning and the pump can continue to pump oil. If the surface is over heated or smoked up, a false shut down will occur after 15 to 45 seconds depending on the factory set lock out time stated on the primary control.
Burner Specifics and Dimensions (continued) The transformer or the igniter can fail any time from start up, to and thru the useable life of the heater. Down draft or reverse draft from exhaust fans operating when the furnace is hot can ruin the insulation of the 20,000 volt igniter. Typical Heatmaster Nozzle The nozzle can be disassembled and cleaned by unscrewing the filter section. A retainer spacer and the rotor (fine grooves spin the oil) prior to going out of the orifice as a mist at 100 PSI pressure.
F B A C H D E A. The fuel pump is made for #2 heating fuel. Waste oil and other contaminates such as water can ruin the pump. B. The coupling is plastic and can be ruined by reverse drafts, sucking heat back through burner. C. Air guide directs the combustion air from the blower wheel D. into the blower. The air shutter controls the quality of the flame and the efficiency of the burner (shown on page 12) E. The burner motor is 1/7th HP, and turns at 3450 rpm. There is a thermal reset on some models.
ANNUAL INSPECTION - Clean or change nozzle. (Use manufacturers recommended size) DO NOT OVER FIRE! - COMBUSTION TESTS Draft .02 - .04 inches of water column Carbon Dioxide (CO2 should be between 10% & 13%) Smoke Reading #2 - #3 for old units & #0 - #1 for new units - CAD CELL Flame Detector should read below 1600 Ohms - FUEL FILTER CARTRIDGE – Change or clean each season -TRANSFORMER ¾ -inch spark jump – 20,000 volts. USE INSULATED SCREWDRIVER TO TEST. - PUMP PRESSURE – Should be 100 lbs. to 110 lbs.
BASIC TROUBLESHOOTING Recommended Equipment 1. Electrical test meter (VOLTS, OHMS, AMPS). 2. Ignition transformer tester 3. Combustion analyzer kit (oxygen or carbon dioxide, smoke, stack temperature, draft, system efficiency). 4. Pressure/vacuum gauge (0-200 psig and 0-30: Hg). 5. Full assortment of standard hand tools. Preliminary Steps 1. Check oil level in supply tank. 2. Make sure all oil line valves are open. 3. Examine combustion chamber for excessive unburned oil. Clean if necessary.
If cause of failure has not been identified: -Reconnect nozzle line fittings for burner fire test. -Reset primary control if necessary. Run several cycles. Observe flame quality. Use a flame mirror, if possible, to see if flame base is stable and close to combustion head. Is flame centered, uniform in shape, and relatively quiet? Are head and chamber free of carbon formations or impingement? Sometimes a defective or partially plugged nozzle can cause trouble.
8. The control may be governed by a room thermostat. Be sure heat anticipator setting or rating of the thermostat matches the 24 volt current draw. This information is usually printed on the control body. Erratic operation may be caused by improper anticipator settings. Settings are typically .2 or .4 amps. This value can usually be measured by connecting a multitester in SERIES with one of the TT leads, and reading the value on the appropriate milliampere scale.
-Low input line voltage can cause reduced transformer life. It should be at least 105 volts AC. -Electrode insulating porcelains must be clean and free of carbon residue, moisture, crazing, or pin hole leaks. Leakage paths can contribute to faulty ignition. -Electrode settings must conform to specifications for gap width, distance in front of nozzle face, and distance above the nozzle center line.
The Fuel Pump transfers oil from the supply tank, cleans it with a strainer or similar mechanism, pressurizes the oil for good atomization at the nozzle, and provides a good shutoff at the end of the run cycle. Manufacturers provide excellent installation and service information. Please read and follow it carefully. Many burner problems can be traced to incorrect installation of oil piping and fittings. Nozzles Oil burner nozzles come in a wide range of designs and sizes.
401 PARTS 1 Front View 6 2 7 3 8 4 9 5 10 11 BELT GUARD 1. Square D breaker box 2. 25A Circuit Breaker 3. Fan & Limit Switch 4. Conduit 5. Power Cord 25’ 12-3 (no plug) 6. Thermostat 7. Drive Pulley 3 ¾” - 60 Hz. or 4 ½” - 50 Hz. 8. 1 HP Motor * 9. 49” V-Belt 10. 9” Driven Pulley (blower) 11.
401 PARTS (continued) 3 Rear View 1 Fuel Tank WEAR GOGGLES 3 5 2 6 Heat Exchanger 4 7 8 1. Fuel Filter Assembly S254 5. Inspection Door 2. Fuel Filter cartridge AO25 6. Inspection Door clasp 3. ⅜” Pipe to ⅜” Flare fitting (2) 7. Weatherproof Conduit (105”) 4. ⅜” Copper Tubing (1 @ 58” 1 @ 64”) 8.
