IN S TAL L AT ION , OP E R AT IN G AN D S E R V IC E IN S T R U C T ION S F OR Me g a S te a m™ 3 - PA S S O I L B O I L E R As an ENERGY STAR® Partner, U.S. Boiler Company has determined that the MST288, MST396, MST513 and MST629 meet the ENERGY STAR® guidelines for Energy efficiency established by the United States Environmental Protection Agency (EPA). 9700609 F o r s e rvi c e o r re p a i r s to b o i le r, c a ll yo ur he a ti ng c o ntr a c to r o r o i l s up p li e r.
IMPORTANT INFORMATION - READ CAREFULLY All boilers must be installed in accordance with National, State and Local Plumbing, Heating and Electrical Codes and the regulations of the serving utilities. These Codes and Regulations may differ from this instruction manual. Authorities having jurisdiction should be consulted before installations are made. In all cases, reference should be made to the following Standards: USA BOILERS A.
DANGER DO NOT store or use gasoline or other flammable vapors or liquids in the vicinity of this or any other appliance. WARNING Improper installation, adjustment, alteration, service or maintenance can cause property damage, personal injury or loss of life. Failure to follow all instructions in the proper order can cause personal injury or death.
WARNING This boiler contains very hot water under high pressure. Do not unscrew any pipe fittings nor attempt to disconnect any components of this boiler without positively assuring the water is cool and has no pressure. Always wear protective clothing and equipment when installing, starting up or servicing this boiler to prevent scald injuries. Do not rely on the pressure and temperature gauges to determine the temperature and pressure of the boiler.
Figure 1: MST288 Thru MST629 Steam Boiler with and without Tankless Heater (Beckett Burner Shown)
TABLE 1A: DIMENSIONAL DATA (SEE FIGURE 1) Boiler Model No. Dimensions (See Figure 1) Water Content (To Normal Water Line) - Gallons With Tankless Non-Heater Heater Heat Transfer Surface Area - sq. Ft. Actual Shipping Weight (LB.) "A" "B" "C" MST288 22-5/8" 24" 6" 15.3 14.9 20.29 607 MST396 22-5/8" 24" 6" 15.3 14.9 20.29 607 MST513 28-5/8" 30" 6" 19.7 19.3 27.29 744 MST629 34-5/8" 36" 7" 24.1 23.8 34.
Section I: PRE-INSTALLATION A. INSPECT SHIPMENT carefully for any signs of damage. 1. All equipment is carefully manufactured, inspected and packed. Our responsibility ceases upon delivery of crated boiler to the carrier in good condition. 2. Any claims for damage or shortage in shipment must be filed immediately against the carrier by the consignee. No claims for variances from, or shortage in orders, will be allowed by the manufacturer unless presented within sixty (60) days after receipt of goods. B.
Section I: PRE-INSTALLATION (continued) NOTICE Clearance to venting is for single wall vent pipe. If Type L vent is used, clearance may be reduced to the minimum required by the vent pipe manufacturer. C. PROVIDE COMBUSTION AND VENTILATION AIR. Local and National Codes may apply and should be referenced. WARNING Adequate combustion and ventilation air must be provided to assure proper combustion and to maintain safe ambient air temperatures.
SECTION II: UNIT-PAK BOILER ASSEMBLY MegaSteam™ Unit-Pak Boiler Assembly Shipment Content Check List (see Figure 3) 1.
SECTION II: UNIT-PAK BOILER ASSEMBLY (continued) A. CAST IRON SECTION ASSEMBLY TAPPINGS Refer to Table 3 "Purpose of Tappings and Bosses" and Figure 7. 1. All tappings have factory installed thread protectors. The thread protectors must be removed prior to jacket and piping installation. 2.
Figure 4: Boiler Removal from Skid SECTION II: UNIT-PAK BOILER ASSEMBLY (continued)
SECTION II: UNIT-PAK BOILER ASSEMBLY (continued) D. Jacket Front Panel Installation. In order to install front jacket panel Burner Swing Door and door mounting bracket need to be removed. As shipped, the door would open to the left side. 1. To open/remove Burner Swing Door (mounted on Cast Iron Section/Burner Swing Door/Smoke Box Assembly) and door mounting bracket for front jacket panel installation: a. Loosen but not remove door left side latching hardware (3/8”-16 x 1-3/4” tap bolt). b.
SECTION II: UNIT-PAK BOILER ASSEMBLY (continued) 10. Inspect burner swing door insulation for damage and proper type. By design, for all models, cast bars on front section between the combustion chamber, and, between the left and right side 2nd and 3rd pass flueways should make an impression in door insulation to seal the chambers. By design, door insulation on model MST629 will have two by-pass pockets cast into the insulation centered on the bar between the combustion chamber and 3rd pass flueways.
SECTION II: UNIT-PAK BOILER ASSEMBLY (continued) 11. Upon inspection completion, lift door and place integral cast hinge pins into door mounting bracket slotted holes. Do not close and secure door at this time, proceed to installing stainless steel flueway baffles. 12. Locate/remove four #8 x ½” shoulder sheet metal screws from Hardware Bag, then, install them into front panel flange holes. E. Flueway Baffle Installation. Flueway baffles are enclosed into Part Carton.
SECTION II: UNIT-PAK BOILER ASSEMBLY (continued) THEN INSTALL EARLIER REMOVED LEFT SIDE HINGE HARDWARE (3/8”-16 X 1-3/4” TAP BOLT AND 5/16” WASHER) SECOND. Apply additional pressure while hand tightening the hardware as far as possible and then release the pressure. NOTICE When securing burner swing door make sure door is drawn-in equally on both sides. d. Use a hand or socket wrench to tighten door hardware. ALWAYS START WITH RIGHT SIDE TAP BOLT FIRST.
SECTION II: UNIT-PAK BOILER ASSEMBLY (continued) Figure 7: Purpose of Tappings and Bosses Table 3: Purpose of Tappings & bosses Tapping Location Size, NPT A ¼" - 18 B ¼" - 18 16 Boss Location Thread Size UNC Steam Boiler Less Heater With Heater Pressure Gauge Pressure Limit Probe LWCO - Std.
SECTION II: UNIT-PAK BOILER ASSEMBLY (continued) 7. Secure panel bottom to studs with acorn nuts hand tight. 3. Unfold Insulation Wrapper, position it over section assembly centered left to right and align two wrapper upper holes with 2" NPT pipe tappings in front and rear section top. 8. Align upper panel attachment holes with smokebox upper attachment bosses and install 5/16”-18 x ½” Phillips pan head machine screws hand tight. 4.
SECTION II: UNIT-PAK BOILER ASSEMBLY (continued) 9. Place the panel between side panels upper inside flanges and slide it forward, until top panel front flange U-bend locks over front panel top flange, and, top panel rear flange is positioned over rear jacket panel. 10. Locate/remove two #8 x ½” sheet metal screws from Hardware Bag. 11. Install both screws into top panel rear flange to secure the top panel to rear jacket panel. K. External Electrical Enclosure Mounting. 1.
Figure 9: Float-Type LWCO and Pressure Limit Installation SECTION II: UNIT-PAK BOILER ASSEMBLY (continued)
SECTION II: UNIT-PAK BOILER ASSEMBLY (continued) 4. Pick-up the LWCO harness Molex end and feed it into the enclosure, thru external electrical enclosure top flange front left 7/8” hole; then, snap-in harness BX connector into the hole, and, plug-in Molex connector into dedicated LWCO receptacle inside the enclosure (middle left off transformer/relay). See “ Control Plug-In Diagram” label attached to inside of the enclosure cover for details.
SECTION II: UNIT-PAK BOILER ASSEMBLY (continued) Figure 10: Oil Burner Installation (Beckett Burner Shown) 3. Thread safety valve into the ¾” NPT black coupling. Pipe the safety valve discharge as shown in Figure 12 “ Recommended Boiler Piping For Gravity Return Steam Boiler” shown in Section III of this manual. Installation of the safety valve must be consistent with ANSI/ASME Boiler and Pressure Vessel Code, Section IV.
SECTION II: UNIT-PAK BOILER ASSEMBLY (continued) g. Align holes and install two (2) remaining cap screws. Level burner and fully tighten all three (3) screws. h. Plug burner power cord into power outlet receptacle located in lower right corner of front panel. 2. Install Riello oil burner, refer to Figure 10. a. Loosen Burner cover Holding Screws and remove Burner Cover. Check oil nozzle in burner for size, angle and type, inspect electrode settings and check insertion depth and turbulator setting.
SECTION II: UNIT-PAK BOILER ASSEMBLY (continued) Two PIPE CONNECTORS (4) are supplied with the burner for connection to either a single or two-line system. Also supplied are two ADAPTORS (3), two female ¼” NPT to adapt oil lines to burner pipe connectors. All pump port threads are British Parallel Thread design. Direct connection of NPT threads to the pump will damage the pump body. Figure 11D: Turbulator Setting c. Retighten the RETAINING NUT (1) upon adjustment completion.
SECTION III: STEAM Boiler PIPING & TRIM WARNING Failure to properly pipe boiler may result in improper operation and damage to boiler or structure. Do not increase steam boiler input above the ratings. A. Evaluate the existing steam system. The single most important factor in determining the expected life cycle of a steam boiler, is the amount of fresh water added to the boiler during operation. Fresh water brings minerals and oxygen into the boiler.
Figure 12: Recommended Boiler Piping for Gravity Return Steam Boiler SECTION III: STEAM Boiler PIPING & TRIM (continued)
SECTION IV: TANKLESS & Indirect Water HEATER PIPING A. CONNECT TANKLESS HEATER PIPING as shown in Figure 13. See Table 4 for Tankless Heater Rating. WARNING Install automatic mixing valve at tankless heater outlet to avoid risk of burns or scalding due to excessively hot water at fixtures. Adjust and maintain the mixing valve in accordance with the manufacturer's instructions. Do not operate tankless heater without mixing valve.
SECTION IV: TANKLESS & Indirect Water HEATER PIPING (cont'd) Figure 13: Schematic Tankless Water Heater Piping Table 4: TANKLESS HEATER DATA: Boiler Model Heater No. MST288 MST396 MST513 MST629 222A Heater Rating (GPM) Pressure Drop thru Heater (PSI) 3.00 22.0 3.25 24.3 3.50 26.5 4.00 31.
SECTION IV: TANKLESS & Indirect Water HEATER PIPING (cont'd) Figure 14: Alliance SL™ Water Heater Piping with MegaSteam™ Boiler B. CONNECT Alliance SL™ INDIRECT WATER HEATER PIPING as shown in Figure 14. 28 1. Refer to Alliance SL™ manual for additional information.
SECTION V: VENTING & Air intake piping A. Chimney Venting 1. Chimney venting is an important part of a safe and efficient oil fired appliance system. Contact your local fire and building officials on specific requirements for restrictions and the installation of fuel oil burning equipment.
SECTION V: VENTING & Air intake piping (continued) Figure 15: Recommended Vent Pipe Arrangement and Chimney Requirements Figure 16: Proper and Improper Locations of Draft Regulator 30
SECTION V: VENTING & Air intake piping (continued) 2. Type B Chimney Connector - a type B chimney connector can be used to transmit the flue gases provided flue gas temperature entering the chimney connector is greater than 310°F. 3. Type L Chimney Connector - a type L vent or other suitable material shall be used for a chimney connector if the temperature or exiting temperature is less than 310°F. DANGER Any signs of condensate see page at the base of the chimney shall be inspected immediately.
SECTION V: VENTING & Air intake piping (continued) a minimum, remove the baffles to increase the stack temperature. See Tables 8 thru 8B for temperature differential (∆T) with baffles IN and OUT. In addition, the lower the CO2 level the higher the stack temperature. WARNING Remove the baffles if there are any signs of condensation in the chimney or chimney connector. Consult with your local chimney professional for recommendations. E.
SECTION VI: ELECTRICAL DANGER Positively assure all electrical connections are unpowered before attempting installation or service of electrical components or connections of the boiler or building. Lock out all electrical boxes with padlock once power is turned off. WARNING Failure to properly wire electrical connections to the boiler may result in serious physical harm. Electrical power may be from more than one source. Make sure all power is off before attempting any electrical work.
Figure 18: Wiring Diagram, Steam, Hydrolevel CG450 Probe LWCO SECTION VI: ELECTRICAL (continued)
Figure 18A: Wiring Diagram, Riello 40 Series Burner, Steam, Hydrolevel CG450 Probe LWCO SECTION VI: ELECTRICAL (continued)
Figure 19: Wiring Diagram, Steam, McDonnell & Miller PS-801 Probe LWCO SECTION VI: ELECTRICAL (continued)
Figure 19A: Wiring Diagram, Riello 40 Series Burner, Steam, McDonnell & Miller PS-801 Probe LWCO SECTION VI: ELECTRICAL (continued)
Figure 20: Wiring Diagram, Steam, McDonnell & Miller #67 Float LWCO SECTION VI: ELECTRICAL (continued)
Figure 20A: Wiring Diagram, Riello 40 Series Burner, Steam, McDonnell & Miller #67 Float LWCO SECTION VI: ELECTRICAL (continued)
SECTION VI: ELECTRICAL (continued) BOILER SEQUENCE OF OPERATION WITH PROBE LWCO (See Figure 18) When the thermostat calls for heat, it energizes the R8285C Control Center relay which in turn energizes the cad cell primary control, bringing on the burner. The burner will operate in the following sequence: Prepurge for the first 10 seconds; fire until the thermostat is satisfied or the limit setting on the high limit is reached; post-purge for the last 10 seconds.
SECTION VII: OIL PIPING A. General 1. Use flexible oil line(s) so the burner swing door can be opened without disconnecting the oil supply piping. 2. A supply line fuel oil filter is recommended as a minimum for all firing rates but a pleated paper fuel oil filter is recommended for the firing rates below 1.0 gph to prevent nozzle fouling. 3. Use Flared fittings only. Cast iron fittings cannot be used. NOTICE WARNING Under no circumstances can copper with sweat style connectors be used.
SECTION VII: OIL PIPING (continued) C. Two Pipe Oil Lines 1. For two piped systems, where more lift is required, the two-stage fuel unit is recommended. Table 5 (two-stage) and Table 6 (single-stage) show allowable lift and lengths of 3/8 inch and 1/2 inch OD tubing for both suction and return lines. Refer to Figure 22. 2. Follow the oil pump manufacturer’s recommendations on the proper connections for a two pipe system. Some manufacturers require the insertion of a bypass plug.
Section VIII: SYSTEM START-UP WARNING All boilers equipped with burner swing door have a potential hazard which can cause severe property damage, personal injury or loss of life if ignored. Before opening swing door, turn off service switch to boiler to prevent accidental firing of burner outside the combustion chamber. Be sure to tighten swing door fastener completely when service is completed. 1. SET ROOM THERMOSTAT about 10° above room temperature. A. ALWAYS INSPECT INSTALLATION BEFORE STARTING BURNER.
Section VIII: SYSTEM START-UP (continued) 5. Adjust oil pressure. a. When checking a fuel unit's operating pressure, a reliable pressure gauge may be installed in either the bleeder port or the nozzle port. See Figure 23. b. Locate oil pressure adjusting screw and turn screw to obtain proper pump pressure, refer to Tables 8 thru 8B at rear of manual. c. To check the cut-off pressure, deadhead a reliable pressure gauge onto the copper connector tube attached to the nozzle port.
Figure 24: "L1" and "V1" Head Electrode Positioning and Gun Setting (Beckett AFG) Section VIII: SYSTEM START-UP (continued)
Section VIII: SYSTEM START-UP (continued) 2. IF NOZZLE CONTINUES TO DRIP, repeat Paragraph H, No. 1. If this does not stop the dripping, remove cut-off valve and seat, and wipe both with a clean cloth until clean, then replace and readjust oil pressure. If dripping or after burn persist replace fuel pump. I. iv. Limited Reset (Restricted Mode): In order to limit the accumulation of unburned oil in the combustion area, the control can only be reset three times.
Section VIII: SYSTEM START-UP (continued) • Check the piping to the oil tank. • Check the oil nozzle, oil supply and oil • If safety switch shuts down burner and resistance is above 1600 OHMS, open line switch to boiler. Access cad cell under ignitor, clean face of cad cell and see that cell is securely in socket. Check gasket around perimeter of ignitor lid for proper seal. If gasket is missing or damaged, replace gasket. Room light can effect cad cell resistance. Reset safety switch. filter. ii.
Important Product Safety Information Refractory Ceramic Fiber Product Warning: The Repair Parts list designates parts that contain refractory ceramic fibers (RCF). RCF has been classified as a possible human carcinogen. When exposed to temperatures about 1805°F, such as during direct flame contact, RCF changes into crystalline silica, a known carcinogen. When disturbed as a result of servicing or repair, these substances become airborne and, if inhaled, may be hazardous to your health.
SECTION Ix: MAINTENANCE AND SERVICE INSTRUCTIONS A. MAINTENANCE OF LOW WATER CUTOFF DEVICES WARNING Probe and float type low water cut-off devices require annual inspection and maintenance. 1. PROBE TYPE LOW WATER CUT-OFF Although these devices are solid state in their operation, the probe is exposed to possible contamination in the boiler water and subject to fouling.
SECTION Ix: MAINTENANCE AND SERVICE INSTRUCTIONS (cont'd) Operate the boiler with steam in the entire system for a few days allowing the condensate to return to the boiler. If the condensate can temporarily be wasted, operate boiler only for the length of time it takes for condensate to run clear. If the latter cannot be achieved or if the condensate is returned to the boiler, boil out the boiler using the SURFACE BLOW-OFF connection, see Figure 7. i.
SECTION Ix: MAINTENANCE AND SERVICE INSTRUCTIONS (cont'd) open gate valve in Hartford Loop, then repeat Step 1 above. e. Make pH or Alkalinity Test. After boiler and system have been cleaned and refilled as previously described, test the pH of the water in the system. This can easily be done by drawing a small sample of boiler water and testing with hydrion paper which is used in the same manner as litmus paper, except it gives specific readings.
Section X: BOILER Cleaning WARNING All boiler cleaning must be completed with burner service switch turned off. Boilers equipped with burner swing door have a potential hazard which can cause severe property damage, personal injury or loss of life if ignored. Before opening swing door, turn off service switch to boiler to prevent accidental firing of burner outside the combustion chamber. Disconnect the burner plug from the receptacle in the front jacket.
Section X: BOILER Cleaning (continued) Figure 27: Cleaning Boiler Flueways and Combustion Chamber Surfaces WARNING The boiler must be connected to an approved chimney in good condition. Serious property damage could result if the boiler is connected to a dirty or inadequate chimney. The interior of the chimney flue must be inspected and cleaned before the start of the heating season and should be inspected periodically throughout the heating season for any obstructions.
SECTION XI: TROUBLE SHOOTING A. COMBUSTION 1. NOZZLES — Although the nozzle is a relatively inexpensive device, its function is critical to the successful operation of the oil burner. The selection of the nozzle supplied with the MegaSteam™ boiler is the result of extensive testing to obtain the best flame shape and efficient combustion. Other brands of the same spray angle and spray pattern may be used but may not perform at the expected level of CO2 and smoke.
SECTION XI: TROUBLE SHOOTING (continued) d. Excessive airflow or draft causing flame to leave burner head. e. Excessive back pressure causing flame to be erratic. 3. Control locks out after Trial For Ignition (TFI). a. No oil to burner. b. Shorted electrodes. c. Nozzle clogged. d. Airflow too high. e. Ignitor module defective. f. CAD cell defective. g. Oil valve stuck open or closed. Note: The Safety Monitoring Circuit (SMC) is designed to provide lockout in the event of a stuck or welded motor relay.
SECTION XII: Repair Parts Bare Boiler Assembly All MegaSteam™ Boiler Repair Parts may be obtained through your local Burnham product distributor. Should you require assistance in locating a Burnham product distributor in your area, or have questions regarding the availability of Burnham brand products or repair parts, please contact U.S. Boiler Company Customer Service at (717) 481-8400 or Fax (717) 481-8408.
SECTION XII: Repair Parts (continued) Item No. Description Part No. MST288 MST396 MST513 MST629 1. BARE BOILER ASSEMBLY 1A Front Section, Machined 100569-01 1 1 1 1 1B Center Section, Machined 100571-01 1 1 2 3 1C1 Rear Section (Htr.), Steam, Machined 100573-01 1 1 1 1 1C2 Rear Section (Non-Htr.), Steam, Machined 100676-01 1 1 1 1 1D1 Slip Nipple, 22-B Steel 806600375 2 2 3 4 1D2 5" Cast Iron Slip Nipple 7066003 2 2 3 4 Upper Tie Rod, 3/8" -16 x 16" Lg.
Bare Boiler Assembly SECTION XII: Repair Parts (continued)
SECTION XII: Repair Parts (continued) Item No. Description Part No. MST288 MST396 MST513 MST629 1. BARE BOILER ASSEMBLY (Continued) Burner Swing Door Insulation (Less Pockets) 100039-01 1 1 1 --- Burner Swing Door Insulation (With Pockets) 100039-02 --- --- --- 1 1T 5/8" Dia. Rope Gasket - Burner Swing Door 100097-01 1 1 1 1 1U 1/8" Dia.
Jacket Assembly SECTION XII: Repair Parts (continued)
SECTION XII: Repair Parts (continued) Item No. Description Part No. MST288 MST396 MST513 MST629 2. JACKET ASSEMBLY 2A Jacket Front Panel Assembly w/Insulation 100575-01 1 1 1 1 2B Power Outlet Receptacle, w/Harness 100605-01 1 1 1 1 2C #8 x 1/2" Type AB Truss Head w/Shoulder, Sheet Metal Screw, Plated 100038-01 10 10 10 10 2D Jacket Rear Panel Assembly w/Insulation 100578-01 1 1 1 1 2E External Wiring Enclosure 100602-01 1 1 1 1 2F Tap End Stud, 5/16" -18 x 3" Lg.
MST288 Thru MST629 Steam Boilers - Trim and Controls SECTION XII: Repair Parts (continued)
SECTION XII: Repair Parts (continued) Item No. Description Part No. MST288 MST396 MST513 MST629 3. MST - TRIM AND CONTROLS 3A 6" RC-STD Draft Regulator 8116288 1 1 1 --- 7" RC-STD Draft Regulator 8116289 --- --- --- 1 3B Pressure Gauge 100325-01 1 1 1 1 3C Probe, Hydrolevel EL-1214 (for Hydrolevel CG450) 80160629 1 1 1 1 Low Water Cut-off, Hydrolevel CG450 (less Probe) 80160623 Low Water Cut-off, McDonnell & Miller PS-801 80160723 1 1 1 1 3E Nipple, 3/4" NPT x 3" Lg.
Beckett AFG Burner SECTION XII: Repair Parts (continued)
SECTION XII: Repair Parts (continued) BECKETT OIL BURNER PART NOS. FOR MegaSteam™ SERIES BOILERS NOTE: When ordering parts always give the serial and model numbers shown on the boiler and burner. Also provide the name of the part(s) and part number as listed below.
SECTION XII: Repair Parts (continued) RIELLO OIL BURNER PART NUMBERS FOR MEGASTEAM 3-Pass Oil BOILERS NOTE: When ordering parts always give the serial and model numbers shown on the boiler and burner. Refer to Models F3 & F5 Installation Manual, Riello 40 Series Residential Oil Burners (C6501010) for an exploded view of the burner and a list of spare parts.
0.75 1.05 1.35 1.65 MST288 MST396 MST513 MST629 V1 (3) V1 (0) L1 L1 Head Type (setting) 7 7 7 61 2 2 1 1 Air Shutter Air Band (setting) (setting) 150 150 150 150 0.85 x 60B Delavan 1.10 x 60B Hago 1.35 x 60B Hago Nozzle 0.60 x 60A Delavan Pump Pressure (psi) 11.5 11.5 11.5 11.5 Approx. Shipped CO2 (%) 2nd 2nd 2nd --- Baffle Location (pass) 52 40 20 --- Approx. Stack Temp. Increase Without Baffles (F)2 0 0 0 0 Baffles IN Minimum Breech Pressure ("w.c.
0.82 1.05 1.35 1.65 Boiler Model MPO-IQ115 MPO-IQ147 MPO-IQ189 MPO-IQ231 3.5 5.5 1.10 x 45B Delavan 1.35 x 45B Hago 60 50 40 150 150 150 150 Conical Wrap Conical Wrap Conical Wrap 12D 2-5/8 2-5/8 2-5/8 2-5/8 11.5 11.5 11.5 11.5 2nd 2nd 2nd 2nd & 3rd Baffle Location (pass) 18 39 65 84 Approx. Stack Temp. Increase Without Baffles °F (2) 4) Single stage fuel pump is standard, two-stage fuel pump is optional.
Appendix A - Figures Figure Number Page Number Figure 1 5 Description MST288 Thru MST629 Steam Boiler with and without Tankless Heater (Beckett Burner Shown) Section I - Pre-Installation Figure 2 7 Minimum Installation Clearances to Combustible Materials (Inches) Section II - Unit-Pak Boiler Assembly Figure 3 9 MegaSteam Unit-Pak Boiler Shipment Contents (outiside container removed) Figure 4 11 Boiler Removal from Skid Figure 5A 12 Partial Front View - Burner Swing Door Mounted to Boiler - F
Appendix A - FIGURES (continued) Figure Number Page Number Description Section VIII - System Start-Up Figure 23 44 Adjusting Fuel Pump Pressure Figure 24 45 "L1" and "V1" Head Electrode Positioning and Gun Setting (Beckett AFG) Figure 25 46 R7184 Terminals, LED and Reset Button Figure 26 47 Cad Cell Location Section X - Boiler Cleaning Figure 27 53 Cleaning Boiler Flueways and Combustion Chamber Surfaces Section XII - Repair Parts N/A 70 Pages 56 thru 64
Appendix B - TABLES Table Number Page Number Table 1A 6 Dimensional Data (See Figure 1) Table 1B 6 Rating Data Description Section II - Unit-Pak Boiler Assembly Table 2 14 Baffle Usage Table 3 16 Purpose of Tappings and Bosses Section IV - Tankless & Indirect Water Heater Piping Table 4 27 Tankless Heater Data Section VII - Oil Piping Table 5 42 Two-Stage Units (3450 RPM) - Two Pipe Systems Table 6 42 Single-Stage Units (3450 RPM) - Two Pipe Systems Section VIII - System Start-Up Tab
U.S. Boiler Company, Inc. P.O. Box 3020 Lancaster, PA 17604 (717) 397-4701 www.usboiler.burnham.
