UTICA BOILERS MAGB Documento técnico

Utica Boilers  P.O. Box 4729  Utica, NY 13504

INSTALLATION MANUAL AND OPERATING INSTRUCTIONS

MAGB

MODULAR GAS FIRED BOILERS

FOR FORCED HOT WATER

PAGE 1

TABLE OF CONTENTS

Safety Sy bols & Warnings .................................................................................. Page 2

Engineering and Di ensional Data ................................................................. Pages 3-4

Typical Lay-Out for Gas Fired Syste s ............................................................... Page 5

Supply and Return Piping ................................................................................... Pages 6

Installation Procedure ......................................................................................... Pages 7

Ventilation and Co bustion Air ..................................................................... Pages 8-10

Vent Installation.................................................................................................. Page 10

Vent Da per Installation and Instructions.......................................................... Page 11

Vent Syste Modification ................................................................................... Page 12

Connecting Boilers with Refrigeration Syste s ................................................ Pages 13

Connecting Gas Service .................................................................................... Page 14

Electrical Wiring.................................................................................................. Page 15

Ther ostat Installation ........................................................................................ Page 15

Lighting Instructions .................................................................................... Pages 15018

Nor al Sequence of Operation ........................................................................... Page 18

General Instructions .................................................................................... Pages 19-21

Checking Gas Input Rate to Boiler ..................................................................... Page 21

Controls ............................................................................................................... Page 22

Wiring Diagra ................................................................................................. Pages 23

Replace ent Parts List and General Asse bly .......................................... Pages 24-30

KEEP THIS MANUAL NEAR BOILER

RETAIN FOR FUTURE REFERENCE

SERIES MAGB

CAST IRON

GAS FIRED BOILERS

INSTALLATION MANUAL AND OPERATION INSTRUCTIONS

Published February 1995

Printed in USA

Made In USA

PAGE 2

IMPORTANT!

1. READ ALL INSTRUCTIONS BEFORE INSTALLING.

2. To the owner: Installation and service of this boiler ust be perfor ed by a qualified

installer.

3. To the installer: Leave all instructions with the boiler for future reference.

WARNING!

1. Keep boiler area clear and free fro co bustible aterials, gasoline and other

fla able vapors and liquids.

2. DO NOT obstruct air openings to the boiler roo .

3. Modification, substitution or eli ination of factory equipped, supplied or specified

co ponents ay result in property da age, personal injury or the loss of life.

4. When this product is installed in the Co onwealth of Massachusetts the installation

ust be perfor ed by a Licensed Plu ber or Licensed Gas Fitter.

Safety Symbols

DANGER

DANGER - Indicates an i inently hazardous situation which, if not avoided, WILL

result in death or serious injury.

WARNING

WARNING - Indicates a potentially hazardous situation which, if not avoided, COULD

result in death or serious injury

CAUTION

CAUTION - Indicates a potential hazardous situation which, if not avoided, MAY result

in inor or oderate injury. It ay also be used to alert against unsafe practices.

The following defined sy bols are used throughout this anual to notify the

reader of potential hazards of varying risk levels.

PAGE 3

SERIES MAGB GAS FIRED BOILERS

ENGINEERING DIMENSIONAL DATA

MODEL NUMBER SHIPPING WATER ABC

NUMBER OF WEIGHT CONTENT INCHES INCHES INCHES

MAGB MODULES (LBS.) (GALLONS)

500 2 945 17.6 62.250" 26.625" 13.313"

600 2 1065 20.8 70.000" 30.500" 15.250"

750 3 1400 26.4 97.875" 26.625" 13.313"

900 3 1600 31.2 109.500" 30.500" 15.250"

1000 4 1890 35.2 133.500" 26.625" 13.313"

1200 4 2135 41.6 149.000" 30.500" 15.250"

1500 5 2665 52.0 188.000" 30.500" 15.250"

1800 6 3200 62.4 228.000" 30.500" 15.250"

2100 7 3730 72.8 267.500" 30.500" 15.250"

2400 8 4265 83.2 307.000" 30.500" 15.250"

PAGE 4

MODEL AGA AGA NET I=B=R FLUE COMMON CHIMNEY

NUMBER INPUT OUTPUT WATER RATINGS OUTLET VENT DIAMETER

MAGB BTU/HR. BTU/HR. BTU/HR. SQ. FT. DIA.&NO. DIA. & HEIGHT

** 8" 9"

500 500,000 *410,000 356,500 2,377 2 10" 12" X 15'

600 600,000 480,000 423,000 2,817 2 12" 14" X 15'

750 750,000 *615,000 533,000 3,553 3 12" 14" X 20'

900 900,000 720,000 634,000 4,226 3 14" 16" X 20'

1000 1,000,000 *820,000 713,000 4,753 4 14" 16" X 20'

1200 1,200,000 960,000 845,000 5,635 4 16" 18" X 20'

1500 1,500,000 1,200,000 1,057,000 7,043 5 16" 20" X 20'

1800 1,800,000 1,440,000 1,268,000 8,452 6 18" 20" X 30'

2100 2,100,000 1,680,000 1,479,000 9,861 7 20" 22" X 30'

2400 2,400,000 1,920,000 1,690,000 11,289 8 22" 24" X 30'

* DOE HEATING CAPACITY

**For elevations above 2000 feet ratings should be reduced at a rate of 4% for each

1000 feet above sea level.

**For equivalent square feet of radiation, divide I=B=R output by 150.

SERIES MAGB GAS FIRED BOILERS

ENGINEERING DIMENSIONAL DATA

PAGE 5

TYPICAL LAY-OUTS FOR

GAS FIRED SYSTEMS

PAGE 6

SUPPLY AND RETURN PIPING

INSTALLATION PROCEDURE

WARNING: I proper installation, adjust ent, alteration, service or ainte-

nance can cause injury or property da age.

1. The installation ust confor to the require ents of the authority having jurisdiction

or, in the absence of such require ents, to the latest revision of the National Fuel Gas Code,

ANSI Z223. (Available fro the A erican Gas Association, 8501 E. Pleasant Valley Road,

Cleveland, Ohio 44134). Reference should also be ade to local gas utility regulations and

other codes in effect in the area in which the installation is to be ade.

2. Where required by the authority having jurisdiction, the installation ust confor to

A erican Society of Mechanical Engineers Safety Code for Controls and Safety Devices

For Auto atically Fired Boilers, No.CSD-1.

3. This boiler series is classified as a Category 1 and the vent installation shall be in

accordance with Part 7 of the National Fuel Gas Code noted above or applicable provisions

of the local building codes.

4. This boiler has et safe lighting and other perfor ance criteria with the gas anifold

and control asse bly on the boiler per the latest revision of ANSI Z21.13.

5. The boiler shall be installed such that the gas ignition syste co ponents are

protected fro water (dripping, spraying, rain, etc.) during appliance operation and service,

(circulator replace ent, condensate trap, control replace ent, etc.).

6. LOCATE BOILER on level, solid base as near the chi ney as possible and centrally

located with respect to the heat distribution syste as practical.

7. Allow 24 inches at the front and right side for servicing and cleaning.

8. When installed in a utility roo , the door should be wide enough to allow the largest

boiler part to enter, or to per it replace ent of another appliance such as a water heater.

9. FOR INSTALLATION ON NON-COMBUSTIBLE FLOORS ONLY *. The boiler ust

not be installed on carpeting. Mini u clearances to co bustible construction are:

TOP ................................. 18 IN.

FRONT ............................ ALCOVE

FLUE CONNECTOR ....... 6 IN.

REAR .............................. 4 IN.

CONTROL SIDE ............. 9 IN.

OTHER SIDE .................. 3 IN.

NOTE: Greater clearances for access should supersede fire protection clearances.

* For installation on co bustible flooring special base part no. 325-2-8.00 ust be used.

10. The MEA nu ber for this boiler series is 19-79 Vol. II.

PAGE 7

PAGE 8

ENTILATION AND COMBUSTION AIR

WARNING: AIR OPENINGS TO COMBUSTION AREA MUST NOT

BE OBSTRUCTED. BY FOLLOWING THE CHART BELOW, ADEQUATE

COMBUSTION AIR CAN BE MAINTAINED.

FIGURE 1 FIGURE 2

COMBUSTION AIR REQUIREMENTS

(MINIMUM SQUARE INCHES OPENING)

*UNCONFINED AREA **CONFINED AREA

OUTSIDE INSIDE OUTSIDE COMBUSTION AIR

MODEL NUMBER COMBUSTION COMBUSTION VERT. DUCTS HORZ. DUCTS

NUMBER OF AIR 1 SQ. IN AIR 1 SQ. IN. 1 SQ. IN. 1 SQ. IN.

MAGB MODULES /4000 BTU/HR /1000 BTU/HR /4000 BTU/HR /2000 BTU/HR

(SEE FIG. 2) (SEE FIG. 1)

500 2 125 500 125 250

600 2 150 600 150 300

750 3 188 750 188 375

900 3 225 900 225 450

1000 4 250 1000 250 500

1200 4 300 1200 300 600

1500 5 375 1500 375 750

1800 6 450 1800 450 900

2100 7 525 2100 525 1050

2400 8 600 2400 600 1200

* Unconfine area: A space whose volu e is not less than 50 cubic feet per

1000 BTU per hour of all appliances installed in that space (cubic feet of space = height

x width x length).

** Confine area: A space whose volu e is less than 50 cubic feet per 1000

BTU per hour of all appliances installed in that space (cubic feet of space = height x

width x length).

PAGE 9

ENTILATION & COMBUSTION CONTINUED

1. Ventilation of the boiler roo ust be adequate to provide sufficient air to properly

support co bustion per the latest revision of the National Fuel Gas Code, ANSI Z223.1

section 5.3.

2. When a boiler is located in an unconfined space in a building or conventional construction

fra e, asonry or etal building, infiltration nor ally is adequate to provide air for

co bustion and ventilation. However, if the equip ent is located in a building of unusually tight

construction (See the national Fuel Gas Code, Ansi Z223.1 section 1.7), the boiler area

should be considered as a confined space. In this case air for co bustion and ventilation shall

be provided according to part 5 on page 4. If there is any doubt, install air supply provisions

in accordance with the latest revision of the National Fuel Gas Code.

3. When a boiler is installed in an unconfined space, in a building of unusually tight

construction, air for co bustion and ventilation ust be obtained fro outdoors or fro

spaces freely co unicating with the outdoors. A per anent opening or openings having a

total free area of not less than 1 square inch per 5,000 BTU per hour of total input rating of

all appliances shall be provided. Ducts ay be used to convey akeup air fro the outdoors

and shall have the sa e cross-sectional area of the openings to which they are connected.

4. When air for co bustion and ventilation is fro inside buildings, the confined space shall

be provided with two per anent openings, one starting 12 inches fro the top and one 12

inches fro the botto of the enclosed space. Each opening shall have a ini u free area

of 1 square inch per one thousand (1000) BTU per hour of the total input rating of all appliances

in the enclosed space, but ust not be less than one hundred (100) square inches. These

openings ust freely co unicate directly with other spaces of sufficient volu e so that the

co bined volu e of all spaces eets the criteria for an unconfined space. See figure 1 on

page 8.

5. When the boiler is installed in a confined space and all air is provided fro the outdoors

the confined space shall be provided with one or two per anent openings according to

ethods A or B. When ducts are used, they shall be of the sa e cross sectional area as the

free area of the area of the openings to which they connect. The ini u di ension of

rectangular air ducts shall be not less than 3 x 3 inches or 9 square inches.

A. When installing two openings, one ust co ence within 12 inches fro the top and

the other within 12 inches fro the botto of the enclosure. The openings shall co unicate

directly, or by ducts, with the outdoors or spaces (crawl or attic) that freely co unicate with

the outdoors. One of the following ethods ust be used to provide adequate air for

ventilation and co bustion.

1. When directly co unicating with the outdoors, each opening shall have a

ini u free area of 1 square inch per 4,000 BTU per hour of total input rating of all

equip ent in the enclosure. See figure 2 on page 8.

2. When co unicating with the outdoors by eans of vertical ducts, each

opening shall have a ini u free area 1 square inch per 4,000 BTU per hour of total input

rating of all appliances in the enclosed space.

3. If horizontal ducts are used, each opening and duct shall have a ini u free

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