Utica Boilers MGB, II-MGC Brochure

MGB Series II / MGC Series

There Are Some Things You Can Always Depend On...

MGB II / MGC

Up to 83.9% AFUE Gas Fired Hot Water Boiler

•

Available in 9 sizes from 50 MBH to 299 MBH.

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Dependable Cast Iron Heat Exchanger with Cast Iron Push Nipples.

The Sections and Push Nipples expand at the same rate when
heated. By using similar materials instead of less expensive gaskets
the boiler maintains a water tight seal over time.

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Honeywell High Limit/Electronic Ignition Control.

- With durable protective cover and viewing window.

- Digital temperature display and diagnostics.

- Plug in connection for the vent damper.

- Plug in connection for the system pump.

Control monitors water temperature and delays the burner starting
until any residual heat has been transferred. This maximizes
efciency by turning on the burner only when needed.

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Atmospheric Chimney Vent Boiler with Integral Draft Hood and

Automatic Vent Damper. The Integral Draft Hood reduces the
overall height and footprint of the boiler making it ideal for low
clearance/space limited installations.

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Textured paint Jacket.

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Limited Lifetime Warranty (Residential Applications)

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Made in the USA

MGB Model Shown

Utica MGB Series II & MGC Series Gas Fired Hot Water Boiler

Dimensional

Diagram

MGB Front

MGB Side

MGC Front

MGC Side

1-1/4”

Return

Model

Input Rate

(MBH)

(1)

MGB-50J 50 52 36 15 1 83.5%

MGB-75J 75 63 55 15 2 83.1%
MGB-100J 100 83 72 30 2 83.0%
MGB-125J 125 104 90 30 3 82.0%
MGB-150J 150 124 108 30 3 83.0%
MGB-170J 170 139 121 30 4 82.0%
MGB-200J 200 165 143 30 4 82.0%

MGC-8D/DP* 262.5/245 220/206 191/179 60 7 83.9%
MGC-9D/DP* 299/280 251/235 218/204 60 8 83.7%

*D=Natural Gas, DP=LP Gas
The MCG has distinct input rates for Natural and LP gas versions. 8D/9D rates shown are for Natural gas. 8DP/9DP rates are for LP gas.
(1) Input rating for sea level to 2,000 ft. (610m) above sea level. United States, over 2000 ft (610m) above sea level. Reduce input rate 4% for every 1000
ft (304m) above sea level.

(2) Net AHRI Water Ratings shown based on piping and pickup allowance of 1.15. Consult manufacturer before selecting boiler for installations having
unusual piping and pickup requirements, such as intermittent system operation, extensive piping systems, etc.

For forced hot water systems where boiler and all piping within area to be heated, boiler may be selected on basis of its heating capacity.

(3) Recommended tank sizes for non-ferrous baseboard or radiant panel systems. Increase size for cast iron baseboard and radiation.

General Information (See Installation, Operation and Maintenance Manual for complete instructions)

Clearances

(4) Required

distances

measured from
boiler.

*Denition of Alcove
is three sided space
with no wall in front
of boiler. ANSI
standard for alcove
is 18 inches from
appliance to leading
edge of side walls as
shown in IOM.

Connections
(All Models)

Electrical 120 Volts AC, 60 hertz, 1 phase, Less than 12 amps (15 amp circuit recommended)

Water Content

Dimensions/
Weights

Standard
Equipment

Options

Certications

Top

Control Side 9” (229 mm) 7” (178 mm)

Other Side 3” (76mm) 6” (152 mm)

Front Alcove* 18” (457 mm)

Rear 4” (102 mm) 6” (152 mm)

Flue Connector 6” (152 mm) 6” (152 mm)

Return/Supply Water 1-1/4”, Gas In 1/2” NPT

50 - 2.4 Gallons, 75/100 - 4.0 Gallons, 125/150 - 5.6 Gallons, 170/200 - 7.2 Gallons,

262.5 - 12.7 Gallons, 299 - 14.4 Gallons

Model A B C D Weight

MGB-50J 11-1/8” 4” 30-3/4” 36-1/4” 205 lbs.

MGB-75J 15” 5” 30-3/4” 37-3/4” 253 lbs.

MGB-100J 15” 6” 30-3/4” 37-1/4” 253 lbs.

MGB-125J 18-7/8” 6” 30-3/4” 37-1/4” 315 lbs.

MGB-150J 18-7/8” 7” 30-3/4” 37-3/4” 315 lbs.

MGB-170J 22-3/4” 7” 30-3/4” 38-3/4” 377 lbs.

MGB-200J 22-3/4” 8” 30-3/4” 38-3/4” 377 lbs.

Model A C D E Weight

MGC-8D/DP 27-1/2” 7” 36-3/8” 41-7/8” 552 lbs.

MGC-9D/DP 30-3/4” 7” 36-3/8” 41-7/8” 616 lbs.

Boiler Control Module: Honeywell Control (High Limit/Electronic Ignition Control)
with plastic cover and display window.
User Display Interface: Digital Temperature Display
Heat Exchanger: Cast Iron Sections with Cast Iron Push Nipples.
Combustion: Stainless Steel Main Gas Burners (MGB)/Titanium Composite Burners (MGC), Combination 24
Volt Gas Control (Includes: Automatic Gas Valve, Gas Pressure Regulator, Automatic Pilot,Safety Shutoff, Pilot
Flow Adjustment, Pilot Filter), Intermittent Pilot Control, Continuous Retry, Combination Pilot Burner/Electrode/
Flame Sensor.
Safety: Spill Switch and Roll-Out Switch for safety (MGB)/Flame Roll-Out Safety Shut-Off (Fuse Link) (MGC),
Automatic Vent Damper.
Other: Insulated Boiler Jacket, Integral Draft Diverter, Combination Temperature/Pressure Gauge,
Circulator Pump, 3/4” Drain Valve, 30lb. ASME Relief Valve.

Available in both natural gas or propane models. Central Heating Pump (Taco, Grundfos, B&G or Less
Pump), LP Conversion Kit, Combustible Floor Plate, Fill-Trol.

Heating

Capacity

(MBH)

(1)

Net AHRI Rating,

Water (MBH)

(2)

Air

Cushion

(3)

Tank

No. of

Burners

Combustible Materials (Required)

MGB MGC

18” (457 mm) 6” (152 mm)

AFUE

%

(4)

All ratings and specications subject to change.

Contractor
Assistance: 800.325.5479

C.S.A. Certified For

Natural Gas Or Propane

tel: [phone]

Tested for 100 psi (MGB) / 50 psi (MGC)

ASME Working Pressure

P.O. Box 4729

Utica, New York 13504

• fax: [phone]

www.uticaboilers.com

PN 240009709 Rev. 11/14