Utica Gas-fired Boiler - Manual (Page 27)

§ § § ** † ∆∆∆∆∆ Natural Propane
Boiler A.G.A. Heating I=B=R NetRating No. Recommended Gas Orifice Water
No. Input Capacity NetOutput Sq. Ft. HW of Air Cushion Orifice Drill Content
Btu/Hr. Btu/Hr. Btu/Hr @ 170 o Burners Tank Drill Size Size (Gals.)
MGB 50 50,000 42,000 37,000 243 1 15 30 47 2.4
MGB 75 75,000 63,000 55,000 365 2 15 33 50 4.0
MGB 100 100,000 83,000 72,000 481 2 30 30 47 4.0
MGB 125 125,000 104,000 90,000 603 3 30 31 49 5.6
MGB 150 150,000 124,000 108,000 719 3 30 30 47 5.6
MGB 175 175,000 143,000 124,000 829 4 30 31 49 7.2
MGB 200 200,000 165,000 143,000 957 4 30 30 47 7.2
MGB 250 250,000 205,000 178,000 1189 5 30 30 47 8.8
MGB 300 299,999 243,000 214,000 1368 6 60 30 47 10.4
RA RA RA RA RATINGS TINGS TINGS TINGS TINGS AND D AND D AND D AND D AND DA A A A AT T T T TA A A A A
N N N N NA A A A ATURAL GAS TURAL GAS TURAL GAS TURAL GAS TURAL GAS AND PR AND PR AND PR AND PR AND PROP OP OP OP OPANE GAS ANE GAS ANE GAS ANE GAS ANE GAS
STANDARD EQUIPMENT: Boiler Jacket, Cast Iron Boiler Battery, Combination Aquastat Relay, Theraltimeter
Gauge,Circulator with return piping to boiler, Main Gas Burners, Combination 24 Volt Gas Control (includes
automatic gas valve, gas pressure regulator, automatic pilot, safety shutoff, pilot flow adjustment, pilotfilter),
A.S.M.E. Relief Valve, Drain Cock, Spill Switch, Rollout Switch, Automatic Vent damper. Not shown are
a wiring harness, thermocouple, and non-linting safety pilot.
OPTIONAL EQUIPMENT: Intermittent Electric Ignition Pilot System.
EXPLANATORY NOTES
--All boilers are design certified for installation on noncombustible floor.
--For installation on combustible floors use combustible floor kit.
--Recommended chimney height 20 feet. In special cases where conditions permit, chimney height may
be reduced to 10 feet. Refer to the latest revision of NFGC part 11.
--Electric service to be 120 Volts, 15 Amps, 60 Hz.
--The MEA number for the MGB series boiler is 19-79 Vol. II
§ For elevations above 2000 feet, ratings should be reduced at a rate of 4% for each 1000 feet above sea
level.
∆∆∆∆∆ Tank sized for non-ferrous baseboard or radiant panel systems. Increase size for cast iron baseboard
and radiation.
† Base on 170' temperature in radiators.
--Net I=B=R ratings include 15% allowance for normal piping and pick-up load. Manufacturer should be
consulted on installations having otherthan normal piping and pick-up requirements.
**For equivalent square feet of radiation, divide I=B=R output by 150.
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