MegaSteam Data Sheet

©2012U.S.BoilerCompany,Inc.-Lancaster,PA
Phone: [phone]
Printed in the U.S.A.
FormNo.PL8140130200015ms
www.usboiler.net
MegaSteam: Technical Information
MegaSteam Ratings & Specications
Model AFUE%
Burner
Cap.
(GPH)
1
DOE
Heating
Cap.
(MBH)
2
Net
AHRI
(MBH)
Net
AHRI
(sq. ft.)
3
Flue
Collar
Diameter
(In.)
4
Approx.
Shipping
Weight.
(lbs.)
MST288 86 0.75 92 69 288 6 607
MST396 86 1.05 127 95 396 6 607
MST513 86 1.35 164 123 513 6 744
MST629 86 1.65 201 151 629 7 881
Dimensions (Inches)
Minimum Chimney
Requirements
OPTIONAL
222A Tankless Heater
Model ‘A’ ‘B’ ‘C’
Round In.
(Diam.)
Rectangle
(In. x In.)
Height
(Feet)
Rating
(GPM)
Pressure
Drop (PSI)
MST288 16-5/8 24 5 6 8 x 8 15 3.00 22.0
MST396 16-5/8 24 5 6 8 x 8 15 3.25 24.3
MST513 22-5/8 24 6 6 8 x 8 15 3.50 26.5
MST629 28-5/8 30 6 7 8 x 8 15 4.00 31.0
Standard Equipment
• 3-passcastironsectionassembly,50-psiMAWP
(maximum allowable working pressure)
• Deluxe,powdercoated,removablejacket
• 3”jacketinsulation
• Castironreversibleswingdoor
• Vacuumformedburnerdoorinsulation
• Boilerdrainvalve
• Barometricdraftregulator
• Safetyvalve
• BeckettAFGflangemountedoilburnerw/easy
connect power cord (Riello optional)
• Steamgauge
• L4006A(ST&SLmodelsonly)
• Gaugeglassset
• Removablestainlesssteelfluewaybaffles
• Removablecastironcanopycovers
• Junctionboxw/plug-inaccessorconnections
• Mountedspannerbarw/adjustablelegs
• Pressurelimit
• LWCO-HydrolevelCG450
• 222ATanklessheater(STmodelonly)
A
S
M
E
H
Notes: Maximum Working Pressure: 15 PSI Steam
1. Burner Capacity is based on oil having Higher Heating Value of 140, 000 BTU/Gal.
2. DOE Heating Capacity and Annual Fuel Utilization Efficiency (AFUE) are based on US Government tests at 13.0% CO2 with No. 1
maximum smoke and 0.00” draft in the breach on standard equipment package.
3. Net AHRI Ratings are based upon pick-up allowance of 1.333. Consult manufacturer with unusual piping and pickup requirements
before selecting boiler.
4. Used for sizing flue connection materials.
Notes:
Tankless Heater Rating, GPM is
based on 100° F temperature
rise with 40° F inlet water
(intermittent draw) with boiler
water temperature of 190°F.