Bradford White BMGV3500, BMGH4000, BMGH2500, BMGV4000, BMGH2000 Installation And Operation Instructions Manual

...

Installation and Operation Instructions Document 1293E

Installation and

MagnaTech

Operation Instructions for

Brute MagnaTech

Modulating Boiler Water Heater

Model BMGH1600 Model BMGV1600

1,600 MBTU/h 1,600 MBTU/h

Model BMGH2000 Model BMGV2000

1,999 MBTU/h 1,999 MBTU/h

Model BMGH2500 Model BMGV2500

2,499 MBTU/h 2,499 MBTU/h

Model BMGH3000 Model BMGV3000

3,000 MBTU/h 3,000 MBTU/h

Model BMGH3500 Model BMGV3500

3,500 MBTU/h 3,500 MBTU/h

Model BMGH4000 Model BMGV4000

4,000 MBTU/h 4,000 MBTU/h

FOR YOUR SAFETY: This product must be installed and serviced by a professional service technician,

qualied in hot water boiler and heater installation and maintenance. Improper installation and/or operation could create carbon monoxide gas in ue gases which could cause serious injury, property damage, or death. Improper installation and/or operation will void the warranty.

WARNING

If the information in these instructions is

not followed exactly, a re or explosion may result causing property damage, personal injury or death.

Do not store or use gasoline or other

ammable vapors and liquids in the vicinity of this or any other appliance.

WHAT TO DO IF YOU SMELL GAS

• Do not try to light any appliance.

• Do not touch any electrical switch; do not

use any phone in your building.

• Immediately call your gas supplier from a neighbor’s phone. Follow the gas supplier’s instructions.

• If you cannot reach your gas supplier, call the re department.

Installation and service must be performed by a qualied installer, service agency, or gas supplier.

AVERTISSEMENT

Assurez-vous de bien suivres les instructions données dans cette notice pour réduire au minimum le risque d’incendie ou d’explosion ou pour éviter tout dommage matériel, toute blessure ou la mort.

Ne pas entreposer ni utiliser d’essence ou ni d’autres vapeurs ou liquides inammables dans le à proximité de cet appareil ou de tout autre appareil.

QUE FAIRE SI VOUS SENTEZ UNE ODEUR DE GAZ:

• Ne pas tenter d’allumer d’appareils.

• Ne touchez à aucun interrupteur. Ne pas vous servir des téléphones dans le bâtiment où vous vous trovez.

• Appelez immédiatement votre fournisseur de gaz depuis un voisin. Suivez les instructions du fournisseur.

• Si vous ne pouvez rejoindre le fournisseur de gaz, appelez le sservice des incendies.

L’installation et l’entretien doivent être assurés par un installateur ou un service d’entretien qualié ou par le fournisseur de gaz.

H2359201E

Table of Contents

RADFORD WHITE

Section 1 - GENERAL INFORMATION

1.1 Introduction ...................................................... 1

1.2 Safety Notes .....................................................1

1.3 ModelNomenclature/Identication ...............2

1.4 Warranty ........................................................... 2

1.5 Unit Overviews ( all sizes ) ...........................3-5

1.6 Dimensions ....................................................... 6

1.7 Unpacking ........................................................7

Section 2 - LOCATING THE APPLIANCE

2.1 Locating the Appliance .....................................7

2.2 Correct Vent Distance

from Outside Wall or Roof Termination ...........7

Section 3 - VENTING AND COMBUSTION AIR

3.1 Combustion Air ................................................ 8

3.1.1 Combustion Air From Room ............................8

3.1.2 Ducted Combustion Air ....................................9

3.2 Venting .............................................................9

3.2.1 Common Venting ............................................10

3.2.3 Venting Requirements Unique to Canada ......10

3.3 Locating the Vent and Combustion Air

Terminals ........................................................ 11

3.3.1 Side Wall Vent Terminal ................................. 11

3.3.2 Side Wall Combustion Air Terminal .............. 13

3.3.3 Vertical Vent Terminal .................................... 14

3.3.4 Vertical Combustion Air Terminal.................. 14

3.3.5 Installations in the Commonwealth of

Massachusetts ................................................. 14

3.4 Common Vent Test .........................................15

3.5 Outdoor Installation ........................................16

Section 6 – WATER CONNECTIONS, BMGH

6.1 BMGH System Piping: Hot Supply

Connections .................................................... 19

6.2 BMGH Cold Water Make-Up ........................ 19

6.3 BMGH Freeze Protection ............................... 19

6.4 BMGH Suggested Piping Schematics .......20-24

6.5 Condensate Drain Trap ...............................20

Section 7 - WATER CONNECTIONS, MGV

7.1 BMGV Water Quality ..................................... 25

7.2 BMGV Suggested Piping Schematics ............ 25

7.3 BMGV Piping Requirements .........................25

7.4 BMGV Cold Water Make-Up......................... 26

7.5 BMGV Freeze Protection ............................... 26

7.6 BMGV Water Flow ........................................ 27

7.7 Condensate Drain Trap ................................... 27

Section 8 – ELECTRICAL CONNECTIONS

8.1 Installation Warnings .....................................28

8.2 Main Power Connections ...............................28

8.3 Pump Connections and Operation .................. 29

8.4 Control Panel Layout......................................30

8.5 Wiring Diagrams .......................................32-35

8.6 High Voltage Wiring Diagrams .................36-40

8.7 Ladder Diagrams ......................................41-45

Section 4 - GAS SUPPLY AND PIPING

4.0 Gas Supply and Piping ................................... 16

Section 5 - WATER FLOW REQUIREMENTS

5.1 MagnaTech Boiler Flow and Head

Requirements .................................................. 18

5.2 MagnaTech Water Heater Flow and Head

Requirements .................................................. 18

MagnaTech

BOILERS AND VOLUME WATER HEATERS

Section 9 – NAVIGATING THE TOUCH SCREEN

9.1 The Touch Screen .......................................... 46

9.2 Using the Touch Screen .................................. 46

9.3 VericationProcessforSafety-Related

Parameters ...................................................... 48

9.4 While Operating - Checking Individual

Parameters ...................................................... 49

9.5 ConguringParametersonIndividual

Controllers ...................................................... 50

9.6 Setting the Date and Time on the

System Display......................51

9.7 CongurationMenus(ALL) ..........................52

9.7.1 SystemIdentication&Access ...................... 52

9.7.2 CH-CentralHeatConguration....................53

9.7.3 OutdoorResetConguration .........................53

9.7.4 DHW-DomesticHotWaterConguration ...53

9.7.5 WarmWeatherShutdownConguration ........53

9.7.6 DemandPriorityConguration ......................53

9.7.7 ModulationConguration ..............................53

9.7.8 PumpConguration .......................................53

9.7.9 StatisticsConguration ..................................54

9.7.10 High Limits ....................................................54

9.7.11 Stack Limits ....................................................54

9.7.12 Delta T Limits.................................................54

9.7.13 FrostProtectionConguration ....................... 54

9.7.14 Burner Control Ignition .................................. 56

9.7.15 SystemConguration ..................................... 56

9.7.16 SensorConguration ...................................... 56

9.7.17 LeadLagSlaveConguration ........................56

9.7.18 LeadLagMasterConguration .....................59

9.8 Parameter Defaults and Ranges ......................59

9.9 Connections to a

Building Automation System ......................... 63

9.10 Variable Speed Pump Control (VSPC) ........... 64

9.11 Combustion Setup Procedure ......................... 65

Section 10 - INITIAL STARTUP INSTRUCTIONS

10.1 Filling the Boiler System ................................68

10.2 Initial Operation .............................................69

10.2.1 Initial Burner Operation ................................. 69

10.2.2 Combustion Setup Procedure ......................... 69

10.3 Shutting Down the MagnaTech ...................... 69

10.4 Restarting the MagnaTech .............................. 69

Section 11 – MAINTENANCE

11.1 System Maintenance.......................................70

11.2 Maintenance Notes ......................................... 70

11.2.1 Burner ............................................................. 70

11.2.2 Modulating Gas Valve/ Venturi ...................... 70

11.2.3 Controller ....................................................... 71

11.2.4 Hot Surface Ignitor ......................................... 71

11.2.5 Flame Sensor .................................................. 71

11.2.6 Blower ............................................................ 71

11.2.7 Heat Exchanger Tubes .................................... 72

11.2.8 Gas Pressure Switches .................................... 72

Section 12 – TROUBLESHOOTING

12.1 About Lockouts, Holds, and Alerts ................73

12.1.1 Responding to a Lockout, Hold,

or Alert ............................................................73

12.1.2 Viewing the Lockout and Alert

Histories ......................................................... 73

12.2 Troubleshooting Table ...............................75-89

12.3 Diagnostic Tests and Input/Output

Indicators ........................................................ 89

12.4 Lead/Lag Slave Diagnostics ........................... 90

12.5 Statistics .........................................................90

12.6 Analysis .......................................................... 90

12.7 Control Snapshot ............................................ 91

12.8 Operating Sequence ........................................91

Section 13 – REPLACEMENT PARTS

13.1 General Information ....................................... 92

13.2 Component Illustrations, Parts Lists,

and Part Numbers .................................... 93-107

13.2.1 Frame and Jacket Assembly ...........................93

13.2.2 Final Assembly ...............................................95

13.2.3 Waterway Outlet Assembly ............................96

13.2.4 Blower Assy, Model 1600 .............................. 97

13.2.5 Blower Assy, Model 2000 .............................. 98

13.2.6 BlowerAssy,Models3500&3000................ 99

13.2.7 BlowerAssy,Models3500&4000.............. 101

13.2.8 Gas Train Assembly, Models 1600 thru 3000 ...103

13.2.9 GasTrainAssembly,Models3500&4000 .. 105

13.2.10 Control Panel Assembly .............................. 107

13.2.11 Distribution Box Assemblies ....................... 108

RADFORD WHITE

MagnaTech

BOILERS AND VOLUME WATER HEATERS

Section 1 GENERAL INFORMATION

1.1 Introduction

is manual includes information which will help you to install, operate, and maintain the MagnaTech 1600, 2000, 2500, 3000, 3500 and 4000 systems. Please read this manual completely before proceeding with the installation. If you have any questions regarding this equipment, please consult the Bradford White Corp. factory, or a local factory representative. Many operating problems are caused by improper installation.

1.2 Safety Notes

DANGER

• Water temperature over 125°F (52°C) can cause severe burns instantly or death from scalds.

• Children, disabled and elderly are at highest risk of being scalded.

• See instruction manual before

setting temperature at heating appliance.

• Feel water before

bathing or showering.

• If this appliance is used to produce water that could scald if too hot,

such as domestic hot water use, adjust the outlet control (limit) or use temperature limiting valves

to obtain a maximum water temperature of 125°F (52°C).

Fire or Explosion Hazard

Improper conguration can cause fuel buildup and explosion. Improper user operation may result in property loss, severe physical injury, or death.

Any changes to safety-related conguration parameters must only be done by experienced and/ or licensed burner/boiler operators and mechanics.

If any odor of gas is detected, or if the gas burner does not appear to be functioning in a normal manner, close the main gas shuto valve. Do not shut o the power switch. Contact your heating contractor, gas company, or factory representative.

WARNING

Page 1

Touch Screen

Open the

front panel

to access

the Touch

Screen

e MagnaTech Appliance is protected against overpressurization. A pressure relief valve is included with each MagnaTech.

e inlet gas pressure to the appliance must not exceed 13” W.C. (3.2 kPa).

All installations must be made in accordance with

1) American National Standard Z223.1/NFPA54Latest Edition “National Fuel Gas Code” or 2) CSA B149.1 “Natural Gas and Propane Installation Code” and with the requirement of the local utility or other authorities having jurisdiction. Such applicable requirements take precedence over the general instructions contained herein.

WARNING

Carbon Monoxide Hazard

Improper adjustment of the burners may lead to poor combustion quality, increasing the amount of carbon monoxide produced. Excessive carbon monoxide levels may lead to personal injury or death.

Page 2

RADFORD WHITE

2 3 4 5 6 7 8 9 10 11 12 13 14

M G 1

SERIES

B M G

USAGE

H - HYDRONIC

V - VOLUME

WATER

SIZE

MBTU/h

1600 2000 2500 3000 3500 4000

FUEL

N - NATURAL

P - PROPANE

COUNTRY

CODE

X - USA/

CANADA

E - EXPORT

Not CSA approved

OPTIONS CODE

X - STANDARD J - CSD-1

ELEC SYSTEM

A - 110V, 1Ø

B - 220V, 1Ø

C - 208V, 3Ø

D - 480V, 3Ø

E - 600V, 3Ø

ASME

X - “H” STAMP (MGH)

W - “HLW” STAMP (MGV)

1.3 ModelIdentication

Model Nomenclature

Consult the rating plate on the unit. The following information describes the model number structure.

(1-3) Model Series Designation B = Bradford White M G = MagnaTech

(4) Usage H = Hydronic V = Volume Water

(5-8) Size 1 6 0 0 = 1,600,000 BTU/hr input

2 0 0 0 = 1,999,000 BTU/hr input

2 5 0 0 = 2,499,000 BTU/hr input 3 0 0 0 = 3,000,000 BTU/hr input 3 5 0 0 = 3,500,000 BTU/hr input 4 0 0 0 = 4,000,000 BTU/hr input

(9) Fuel N = Natural Gas P = LP Gas

(10) Country Code X = USA / CANADA E - Export (CE - non CSA)

(11) Option Code X = Standard Unit J = CSD1 Version

(12) Electrical System A - 110V, (Single Phase) B - 220V, (Single Phase) C - 208V, (Three Phase) D - 480V, (Three Phase) E - 600V, (Three Phase)

(13) Additional Options X - “H” STAMP (MGH) W - “HLW” STAMP (MGV)

(14) Revision

1 = First

WARNING

Electrical Shock Hazard

Electrical shock can cause severe injury, death or property damage. Disconnect the power supply before beginning installation or changing the wiring to prevent electrical shock or damage to the equipment. It may be necessary to turn o more than one power supply disconnect.

All electrical wiring is to be done in accordance with local codes, or in the absence of local codes, with: 1) e National Electrical Code ANSI/NFPA No. 70 - latest Edition, or 2) CSA STD. C22.1 “Canadian Electrical Code

- Part 1.” is appliance must be electrically grounded in accordance with these codes.

Altitude: Gas input rating of the MagnaTech shall be used for elevations up to 2000 ft (600 m). The input rating at elevations above 2000 ft (600 m) shall be reduced at a rate of 4 percent for each 1000 ft (300 m) above sea level before selecting the equipment size.

1.4 Warranty

Bradford Whites MagnaTech boilers are covered by a limited warranty. The owner should complete the warranty registration at

http://www.Bradford White.com

ALL WARRANTY CLAIMS must be made by an authorized Bradford White Corp. representative. Claims must include the serial number and model (this information can be found on the rating plate). All claims must also include the installation date and name of the installer. Shipping costs are not included in the warranty coverage.

WARNING

MagnaTech units must be installed in accordance with the procedures detailed in this manual, or the Bradford White Corp. warranty will be voided. e installation must conform to the requirements of the local jurisdiction having authority, and, in the United States, to the latest edition of the National Fuel Gas Code, ANSI Z223.1/NFPA54. In Canada, the installation must conform to the latest edition of CSA B149.1 Natural Gas and Propane Gas Installation Code, and/or local codes. Where required by the authority having jurisdiction, the installation of MagnaTech boilers must conform to the Standard for Controls and Safety Devices for Automatically Fired Boilers, ANSI/ASME CSD-1. Any modications to the boiler, its gas controls, or wiring may void the warranty. If eld conditions require modications, consult the factory representative before initiating such modications.

REVISION

1 -FIRST

MagnaTech

BOILERS AND VOLUME WATER HEATERS

1.5 Unit Overviews

The next 3 pages give a visual reference to the basic

component locations of the Bradford White MagnaTech.

Blower

Manual gas valve

Touch Screen

Heat Exchanger

Page 3

Power Pack

Condensing Unit

Air Intake and

Filter

Water Outlet

Models 1600 and 2000

Perspective from front left corner of unit.

Shown with front doors and left side panels removed.

Water Inlet

Vent

Condensate

Trap

Perspective from opposite corner.

Page 4

Blower

Manual gas valve

Touch Screen

Heat Exchanger

RADFORD WHITE

Power Pack

Condensing Unit

Air Intake and

Filter

Water Outlet

Water Inlet

Models 2500 and 3000

Vent

Condensate

Trap

MagnaTech

BOILERS AND VOLUME WATER HEATERS

Page 5

Blower

Manual gas valve (hidden behind main

gas valve)

Touch Screen

Heat Exchanger

Condensing Unit

Power Pack

Models 3500 and 4000

Air Intake and

Filter

Water Outlet

Water Inlet

Vent

Condensate

Trap

Page 6

VIEW

REAR

FRONT

VIEW

SIDE

VIEW

Condensate Trap

Contact Factory

Oponal Flanges,

Vent

Gas

6”x3.5” Touchscreen

Display

Air Inlet

Pressure

Relief Valve

Water

Outlet

‘Knock-

down’

Height

Water

Inlet

Gas

Air Inlet

Model 4000

The Model 4000 varies from other sizes in the locaon of it’s Air Inlet and Gas Supply.

VIEWREAR

Model

A B C D E F G H J K L M N P Q R S T U

Inches (cm ) Inches (cm ) Inches (cm )

1600

29.3 (75 ) 79.8 (203 ) 38 (96 ) 57.5 (147) 49.8 (126 ) 4.8 (12 ) 60.8 (154 ) 2.6 (7 ) 8.4 (21 ) 68.4 (171 ) 4 (10 ) 39.2 (100 ) 30.4 (77) 16 (41 ) 23 (58 ) 10.2 (26 ) 14 (36) 13 (33 ) 6.3 (16 ) 6 (15 ) 6 (15 ) 60.8 (154 )

2000

29.3 (75 ) 79.8 (203 ) 38 (96 ) 57.5 (147) 49.8 (126 ) 4.8 (12 ) 60.8 (154 ) 2.6 (7 ) 8.4 (21 ) 67.4 (171 ) 4 (10 ) 39.2 (100 ) 30.4 (77) 16 (41 ) 23 (58 ) 10.2 (26 ) 14 (36) 13 (33 ) 6.3 (16 ) 8 (20 ) 8 (20 ) 60.8 (154 )

2500 30.8 (78)

87 (221 ) 41.5 (105 ) 60.5 (154 ) 60.8 (154 ) 6.5 (16 ) 71 (180 ) 4 (10) 9.8 (25 ) 76.4 (194 ) 4.3 (11 ) 44.4 (113 ) 34.5 (88 ) 17.7 (45 ) 27.2 (69 ) 11.8 (30 ) 18.3 (46 ) 14.8 (38 ) 6 (15 ) 8 (20 ) 8 (20 ) 71.0 (180 )

3000 30.8 (78)

87 (221 ) 41.5 (105 ) 60.5 (154 ) 60.8 (154 ) 6.5 (16 ) 71 (180 ) 4 (10) 8.9 (23 ) 76.8 (195 ) 4.3 (11 ) 44.4 (113 ) 34.5 (88 ) 17.7 (45 ) 27.2 (69 ) 11.8 (30 ) 18.3 (46 ) 14.8 (38 ) 6 (15 ) 10 (25 ) 10 (25 ) 71.0 (180 )

3500

34.5 (88 ) 97 (246 ) 52 (133 ) 70 (178 ) 60.8 (154 ) 6.4 (16 ) 80.8 (205 ) 28.8 (73) 26.5 (67) 85.6 (217 ) 6.5 (16 ) 51.3 (130 ) 40 (102 ) 21.6 (55 ) 30.7 (78 ) 13 (33 ) 16 (41 ) 17.4 (44 ) 6.7 (17 )

4000

34.5 (88 ) 97 (246 ) 52 (133 ) 70 (178 ) 60.8 (154 ) 6.4 (16 ) 80.8 (205 ) 28.8 (73) 26.5 (67) 85.6 (217 ) 6.5 (16 ) 51.3 (130 ) 40 (102 ) 21.6 (55 ) 30.7 (78 ) 13 (33 ) 16 (41 ) 17.4 (44 ) 6.7 (17 ) 12 (30 ) 12 (30 ) 80.8 (205)

Model

A B C D E F G H J K L M N P Q R S T U

Inches (cm ) Inches (cm ) Inches (cm )

1600

29.3 (75 ) 79.8 (203 ) 38 (96 ) 57.5 (147 ) 49.8 (126 ) 4.8 (12 ) 60.8 (154 ) 2.6 (7 ) 8.4 (21 ) 68.4 (171 ) 4 (10 ) 39.2 (100 ) 30.4 (77 ) 16 (41) 23 (58 ) 10.2 (26) 14 (36 ) 13 (33 ) 6.3 (16 ) 6 (15 ) 6 (15 ) 60.8 (154 )

2000

29.3 (75 ) 79.8 (203 ) 38 (96 ) 57.5 (147 ) 49.8 (126 ) 4.8 (12 ) 60.8 (154 ) 2.6 (7 ) 8.4 (21 ) 67.4 (171 ) 4 (10 ) 39.2 (100 ) 30.4 (77 ) 16 (41) 23 (58 ) 10.2 (26) 14 (36 ) 13 (33 ) 6.3 (16 ) 8 (20 ) 8 (20 ) 60.8 (154 )

2500 30.8 (78)

3000 30.8 (78)

3500

34.5 (88 ) 97 (246 ) 52 (133 ) 70 (178 ) 60.8 (154 ) 6.4 (16 ) 80.8 (205 ) 28.8 (73) 26.5 (67) 85.6 (217 ) 6.5 (16 ) 51.3 (130 ) 40 (102 ) 21.6 (55 ) 30.7 (78 ) 13 (33 ) 16 (41 ) 17.4 (44 ) 6.7 (17 )

4000

Model

A B C D E F G H J K L M N P Q R S T U

Inches (cm ) Inches (cm ) Inches (cm )

1600

29.3 (75 ) 79.8 (203 ) 38 (96 ) 57.5 (147 ) 49.8 (126 ) 4.8 (12 ) 60.8 (154 ) 2.6 (7 ) 8.4 (21 ) 68.4 (171 ) 4 (10 ) 39.2 (100 ) 30.4 (77 ) 16 (41) 23 (58 ) 10.2 (26) 14 (36 ) 13 (33 ) 6.3 (16 ) 6 (15 ) 6 (15 ) 60.8 (154 )

2000

29.3 (75 ) 79.8 (203 ) 38 (96 ) 57.5 (147 ) 49.8 (126 ) 4.8 (12 ) 60.8 (154 ) 2.6 (7 ) 8.4 (21 ) 67.4 (171 ) 4 (10 ) 39.2 (100 ) 30.4 (77 ) 16 (41) 23 (58 ) 10.2 (26) 14 (36 ) 13 (33 ) 6.3 (16 ) 8 (20 ) 8 (20 ) 60.8 (154 )

2500 30.8 (78)

3000 30.8 (78)

3500

34.5 (88 ) 97 (246 ) 52 (133 ) 70 (178 ) 60.8 (154 ) 6.4 (16 ) 80.8 (205 ) 28.8 (73) 26.5 (67) 85.6 (217 ) 6.5 (16 ) 51.3 (130 ) 40 (102 ) 21.6 (55 ) 30.7 (78 ) 13 (33 ) 16 (41 ) 17.4 (44 ) 6.7 (17 )

4000

Vent Ø

Air Inlet Ø

10 (25) 10 (25)

Vent Ø

Air Inlet Ø

10 (25) 10 (25)

80.8 (205)

Water Gas

Condensate

Connection Connect ion Line

3" Groove Loc k (or flange)

2" NPT 1"

3" Groove Loc k

(or flange)

2" NPT 1"

3" Groove Loc k

(or flange)

2" NPT 1"

3" Groove Loc k

(or flange)

2" NPT 1"

4" Groove Loc k (or flange)

2" NPT 1"

4" Groove Loc k

(or flange)

2" NPT 1"

1.6 Dimensions

'Knock-

down'

Height

RADFORD WHITE

MagnaTech

Models 3500 and 4000 differ from the other sizes in the location of their Air Inlet and Gas Supply.

Figure 1. Dimensions

Models 3500 / 4000

H2359210D

MagnaTech

BOILERS AND VOLUME WATER HEATERS

Page 7

1.7 Unpacking

The MagnaTech is shipped in a single crate. Remove all packing and tie-down materials.

Section 2 LOCATING THE APPLIANCE

2.1 Locating the Appliance

The MagnaTech may be installed indoors or outdoors. If installing outdoors in a location that may experience freezing temperatures, precautions must be taken to prevent water in the heat exchanger and condensate inside and outside of the boiler from freezing. Damage due to freezing water or condensate is not covered by the warranty.

Choose a location for the unit which allows clearances on all sides for maintenance and inspection. See Table 1. Always install the unit on

a rm, level surface.

The unit should not be located in an area where leakage of any connections will result in damage to the area adjacent to the appliance,

or to lower oors of the structure.

When this type of location is not available, install a suitable drain pan, adequately drained, under the appliance.

The appliance is design-certied by CSA-

International for installation on combustible

ooring; in basements; in utility rooms or

alcoves. MagnaTech boilers must never be installed on carpeting. The location for the

appliance should be chosen with regard to the vent pipe lengths and external plumbing.

The unit shall be installed such that the gas ignition system components are protected from water (dripping, spraying, rain, etc.) during operation and service (circulator replacement, control replacement, etc.).

When vented vertically, the MagnaTech must be located as close as practical to the vertical section of the vent. If the vent terminal and/or combustion air terminal terminate through a wall, and there is potential for snow accumulation in the local area, both terminals should be installed at an appropriate level above grade or the maximum expected snow line.

The dimensions and requirements that are shown in Table 1 should be met when choosing the locations for the appliance.

Note - When located on the same wall, the MagnaTech combustion air intake terminal must be installed a minimum of 12” (30cm) below the exhaust terminal. There must also be a minimum horizontal distance from intake to the exhaust terminal of 84” (213cm) See Figure 4

APPLIANCE SUGGESTED SERVICE ACCESS CLEARANCE

SURFACE INCHES CM

Front 24 61

Left Side 8 20

Right Side 8 20

Back 24 61

Top, 1600 & 2000 12 30

Top, 2500 & 3000 15 38

Top, 4000 24 61

APPLIANCE REQUIRED CLEARANCE TO COMBUSTIBLES

SURFACE INCHES CM

Front 18 45

Left Side 4 15

Right Side 4 15

Back 11 15

Top 1 2.5

Vent 1 2.5

Table 1. Clearances

INTAKE / EXHAUST

MAX EQUIVALENT SIZE DIAMETER F T. M

1600 6” 100 30

2000 & 2500 8” 100 30

3000 & 3500 10” 100 30

4000 12” 100 30

Installations in the U.S. require exhaust vent pipe that is CPVC complying with ANSI/ASTM D1785 F441, polypropylene complying with ULC S636, or stainless steel complying with UL1738. Installations in Canada require exhaust vent pipe that

is certied to ULC S636.

Intake (air) pipe must be PVC or CPVC that complies with ANSI/ASTM D1785 F441, ABS that complies with ANSI/ASTM D1527, stainless steel, or galvanized material.

To calculate max equivalent length, measure the linear feet of the pipe, and add 5 feet (1.5 m) for each elbow used.

2.2 Correct Vent Distance from Outside Wall or Roof Termination

Table 2. Vent / Air Pipe Sizes

Page 8

(Place in section 3.1)

Screen for horizontal galvanized air pipe D2012104 D2012101 D2012101 D2012102 D2012103 D2012103

Screen for horizontal PVC air pipe CA012004 CA012001 CA012001 CA012002 CA012003 CA012003

Screen for horizontal polypropylene air pipe CA012204 CA012201 CA012201 CA012202 CA012203 CA012203

Screen for vertical galvanized air pipe D2012204 D2012201 D2012201 D2012202 D2012203 D2012203

Section 3 VENTING AND COMBUSTION AIR

3.1 Combustion Air

MagnaTech boilers and water heaters must have provisions for combustion and ventilation air in accordance with the applicable requirements for Combustion Air Supply and Ventilation in the National Fuel Gas Code,

ANSI Z223 1; or in Canada, the Natural Gas

and Propane Installation Code, CSA B149.1. All applicable provisions of local building codes must also be adhered to.

A MagnaTechs can take combustion air from the space in which it is installed, or the combustion air can be ducted directly to the unit. Ventilation air must be provided in either case.

3.1.1 Combustion Air From Room

In the United States, the most common requirements specify that the space shall communicate with the outdoors in accordance with Method 1 or 2. (See the following descriptions.) Where ducts are used, they shall

RADFORD WHITE

be of the same cross-sectional area as the free area of the openings to which they connect.

Method 1: Two permanent openings, one commencing within 12” (300 mm) of the top and one commencing within 12” (300 mm) of the bottom, of the enclosure shall be provided. The openings shall communicate directly, or by ducts, with the outdoors or spaces that freely communicate with the outdoors. When directly communicating with the outdoors, or when communicating to the outdoors through vertical ducts, each opening shall have a minimum free area of 1 square inch per 4000 Btu/hr (550 square mm/kW) of total input rating of all equipment in the enclosure. When communicating to the outdoors through horizontal ducts, each opening shall have a minimum free area of not less than 1 square inch per 2000 Btu/hr (1100 square mm/kW) of total input rating of all equipment in the enclosure.

Method 2: One permanent opening,

Screen for vertical PVC air pipe CA012404 CA012401 CA012401 CA012402 CA012403 CA012403

Screen for vertical polypropylene air pipe CA012604 CA012601 CA012601 CA012602 CA012603 CA012603

Table 3. Ducted Air Accessories

CPVC, sch. 40 ANSI/ASTM F441

Single wall galv. steel 26 gauge

Table 4. Required Combustion Air Pipe Material

Polypropylene ULC S636 Class 2C

Model 1600 Model 2000 Model 2500 Model 3000 Model 3500 Model 4000

Material United States Canada

ABS ANSI/ASTM D1527 The air pipe material must be chosen based upon

PVC, sch. 40 ANSI/ASTM D1785 or D2665

the intended application of the boiler, and must be installed according to the vent manufacturer’s installation instructions.

MagnaTech

BOILERS AND VOLUME WATER HEATERS

commencing within 12” (300 mm) of the top of the enclosure, shall be permitted. The opening shall directly communicate with the outdoors or shall communicate through a vertical or horizontal duct to the outdoors or spaces that directly communicate with the outdoors and shall have a minimum free area of 1 square inch per 3000 Btu/hr (734 square mm/kW) of the total input rating of all equipment located in the enclosure. This opening must not be less than the sum of the areas of all vent connectors in

the conned space.

Other methods of introducing combustion and ventilation air are acceptable, providing they conform to the requirements in the applicable codes listed above.

In Canada, consult local building and safety codes or, in absence of such requirements, follow CAN/CSA B149.

3.1.2 Ducted Combustion Air

The combustion air can be taken through the wall, or through the roof. Bradford White offers accessories to use with ducted air systems, as shown in Table 3.

See Table 4 to select the appropriate diameter

air pipe. When taken from the roof, a eld-

supplied rain cap or an elbow arrangement must be used to prevent entry of rain water. (See Figure 6).

Use ABS, PVC, CPVC, polypropylene, stainless steel, or galvanized pipe for the combustion air intake. (See Table 4) The intake must be sized per Table 2. Route the intake to the boiler as directly as possible. Seal all joints. Provide adequate hangers. The unit must not support the weight of the combustion air intake pipe. The maximum equivalent pipe length allowed is 100 feet (30 m). Each elbow is considered to be 5 feet (1.5m)

Page 9

The connection for the intake air pipe is on the back panel.

In addition to air needed for combustion, air shall also be supplied for ventilation, including air required for comfort and proper working conditions for personnel. Refer to the applicable codes.

3.2 Venting

WARNING

Selection of improper vent materials for installations that are installed in closets, or will be operated in high ambient temperature levels, may lead to property damage, personal injury, or death.

WARNING

Failure to use the appropriate vent material, installation techniques, or glues and sealants could lead to vent failure causing property damage, personal injury or death.

When using polypropylene or stainless steel

materials in horizontal duct congurations, a

single elbow must be installed on the end of the air inlet to act as an outdoor terminal. In vertical duct applications, two elbows must be installed on the end of the inlet to act as a vent terminal. When elbows are use as terminals, appropriate screens must be installed to prevent blockage. The elbow(s) required for termination are not included in the kits sown in Table 3

Page 10

(Place in section 3.1)

Model 1600 Model 2000 Model 2500 Model 3000 Model 3500 Model 4000

Screen for horizontal galvanized air pipe D2012104 D2012101 D2012101 D2012102 D2012103 D2012103

Screen for horizontal PVC air pipe CA012004 CA012001 CA012001 CA012002 CA012003 CA012003

Screen for horizontal polypropylene air pipe CA012204 CA012201 CA012201 CA012202 CA012203 CA012203

Screen for vertical galvanized air pipe D2012204 D2012201 D2012201 D2012202 D2012203 D2012203

Screen for vertical PVC air pipe CA012404 CA012401 CA012401 CA012402 CA012403 CA012403

Screen for vertical polypropylene air pipe CA012604 CA012601 CA012601 CA012602 CA012603 CA012603

Table 3a - Ducted Air Accessories

(Place in section 3.2)

Horizontal vent terminal for stainless steel D2012004 D2012001 D2012001 D2012002 D2012003 D2012003

Screen for vertical CPVC vent CA012504 CA012501 CA012501 CA012502 CA012503 CA012503

RADFORD WHITE

WARNING

All venting must be installed according to this manual and any other applicable local codes, including but not limited to, ANSI Z223.1/NFPA 54, CSA B149.1, CSAB149.2 and ULC S636. Failure to follow this manual and applicable codes may lead to property damage, severe injury, or death.

If the system temperatures are unknown at the time of installation, class IIC or higher venting material is recommended.

The MagnaTech is a Category IV appliance and may be installed with the standards listed on Table 6. The unit’s vent can terminate through the roof, or through an outside wall.

All installations must be done following the vent supplier’s recommended installation techniques. If these are not available, refer to the Bradford White recommendations for the material used.

NOTE: For Category IV boilers, have horizontal runs sloping upwards not less than 1/4 inch per foot (21 mm/m) from the boiler to

the vent terminal; be installed so as to prevent accumulation of condensate; and, where

necessary, have means provided for drainage of condensate.

ATTENTION: Pour la catégorie IV, les chaudières ont horizontal en pente vers le haut au moins 1/4 de pouce par pied (21 mm/m) à partir de la chaudière pour

l’évent borne; être installé de façon à éviter l’accumulation de condensats; et, le cas

échéant, ont des moyens prévus pour l’évacuation des condensats.

This will allow the condensate to run back to the MagnaTech to drain. Route the vent pipe to the heater as directly as possible. Seal all joints. Provide adequate hangers as required in the venting system manufacturer’s Installation Instructions, or at least every 4 feet.

The unit must not support the weight of the vent pipe. The maximum equivalent pipe length allowed is 100 feet (30m). Each elbow

Screen for horizontal CPVC vent CA012104 CA012101 CA012101 CA012102 CA012103 CA012103

Screen for vertical stainless steel vent D2012304 D2012301 D2012301 D2012302 D2012303 D2012303

Table 5. Vent Accessories

Material United States Canada

Stainless steel UL 1738 Venting must be ULC S636 certied for use as

CPVC, sch 40 ANSI/ASTM F441

Polypropylene

Pending APPROVAL

Table 6. Required Exhaust Vent Material

Model 1600 Model 2000 Model 2500 Model 3000 Model 3500 Model 4000

Installation Standards

venting material. The venting material class must be chosen based upon the intended application of the boiler, and must be installed according to

ULC S636 Class 2C

the maximum ue gas temperature and the vent

manufacturer’s instructions.

MagnaTech

BOILERS AND VOLUME WATER HEATERS

is considered to be 5 feet (1.5m). Bradford White offers accessories to use with horizontal and vertical exhaust vent systems, as shown in Table 5

3.2.1 Common Venting

The MagnaTech can be common vented, however, the common venting must be a professionally designed and approved system. MagnaTech units are never permitted to share a vent with any Catagory 1 appliances.

3.2.3 Venting Requirements Unique to Canada

MagnaTech boilers and water heaters are Vent Category IV appliances. Per the requirements of CAN/CSA-B149.1, only BH vent systems can be connected to these units and such vent

systems, either ULC S636 certied stainless steel or other ULC S636 certied BH vent

(eg. plastics) must be installed per the vent

manufacturer’s certied installation instructions.

It is the responsibility of the appropriately licensed technician installing this MagnaTech to

use ULC S636 certied vent material consistent

with the requirements as described in the Venting and Combustion Air section.

Class I venting systems are suitable for gas-red appliances producing ue gas temperature of more

than 135°C, but not more than 245°C.

Class II venting systems are suitable for gas-red appliances producing ue gas temperatures of 135°C

or less.

Class II venting systems are further classied into

four temperature ratings as follows:

Page 11

Figure 2. Test Port

the ULC S636 certied vent system is preferred. However, if one is not available with the certied

vent system, Bradford White suggests using a tee with the branch connection sized to allow

for insertion of a ue gas analyzer probe. The

branch connection must be resealable with a cap or other means to ensure the vent system remains sealed. (See Figure 2)

Consideration must be given to the placement

and orientation of the ue gas sampling port to ensure that condensate is free to ow back into

the MagnaTech and not collect anywhere in the

vent system - including in the ue gas sampling

port.

A Up to and including 65°C / 149°F

B Up to and including 90°C / 194°F

C Up to and including 110°C / 230°F and

D Up to and including 135°C / 275°F

Flue Gas Sampling Port -

It is also the responsibility of the installer to

ensure that a ue gas sampling port is installed in the vent system. This ue gas sampling port must be installed near the ue connection of the MagnaTech: within 2 feet of the ue connection. There is no ue gas sampling port internal to

the MagnaTech, so one must be installed in the

vent system external to the MagnaTech. A ue

gas sampling port available as a component of

Exhaust Vent Terminal -

An exhaust vent terminal must be installed. If an exhaust vent terminal is not available

with the certied vent system, Bradford White suggests the use of a coupler tting from the certied vent system into which the vent

terminal screen can be installed. Be sure to install and terminate both vent and combustion air pipes per the instructions in this section.

3.3 Locating the Vent and Combustion Air Terminals

3.3.1 Side Wall Vent Terminal

The appropriate Bradford White side wall vent terminal must be used. The terminal must be

Page 12

U.S. Installations (see note 1) Canadian Installations (see note 2)

A= Clearance above grade, veranda, porch, 12 inches (30 cm) 12 inches (30 cm) deck, or balcony See note 6 See note 6

B= Clearance to window or door that may be Direct vent only: 12 inches (30 cm); 36 inches (91 cm) opened Other than Direct vent: 4 ft (1.2m) below or to

side of opening; 1 ft (30 cm) above opening

C= Clearance to permanently closed window See note 4 See note 5

D= Vertical clearance to ventilated soft located

above the terminal within a horizontal See note 4 See note 5 distance of 2 feet (61 cm) from the center line of the terminal

E= Clearance to unventilated soft See note 4 See note 5

F= Clearance to outside corner See note 4 See note 5

G= Clearance to inside corner See note 4 See note 5

H= Clearance to each side of center line 3 feet (91 cm) within a height 15 feet

extended above meter/regulator assembly See note 4 above the meter/regulator assembly

I= Clearance to service regulator vent outlet See note 4 3 feet (91 cm)

J= Clearance to nonmechanical air supply Direct vent only: 36” (91cm) inlet to building or the combustion air inlet Other than Direct vent: 4 ft (1.2m) below 36 inches (91 cm) to any other appliance or to side of opening; 1 ft (30 cm) above opening

K= Clearance to a mechanical air supply inlet 3 feet (91 cm) above if within 10 feet (3 m) 6 feet (1.83 m)

horizontally

L= Clearance above paved sidewalk or paved Vent termination not allowed in this location 7 ft (2.1 m) driveway located on public property for category IV appliances. See note 5

M= Clearance under veranda, porch, deck, See note 4 12 inches (30 cm)

or balcony See note 5

Notes:

1. In accordance with the current ANSI Z223.1 / NFPA 54 National Fuel Gas Code.

2. In accordance with the current CAN/CSA-B149 Installation Codes.

3. Permitted only if veranda, porch, deck, or balcony is fully open on a minimum of two sides beneath the oor.

4. For clearances not specied in ANSI Z223.1 / NFPA 54, clearance is in accordance with local installation codes and the

requirements of the gas supplier.

5. For clearances not specied in CAN/CSA-B149, clearance is in accordance with local installation codes and the requirements of the gas supplier.

6. IMPORTANT: All terminals must be placed so that they remain a minimum 12” above expected snow line. Local codes may have

more specic requirements, and must be consulted.

RADFORD WHITE

Figure 3. Combustion Air and Vent Through Side Wall

*When vent terminal is less than 10 feet (3 m) horizontally from a forced air inlet, the terminal must be at least 3 feet (0.9 m) above the air inlet. (US only)

MagnaTech

IMPORTANT: All terminals must be placed so that they remain at least 12” above the expected snow line. Local codes may have more specic requirements, and must be consulted. Refer to the NFPA54 National Fuel Gas Code and your local codes for all required clearances for venting.

BOILERS AND VOLUME WATER HEATERS

Page 13

windows or near doors.

5. Locate the vent terminal so that it

cannot be blocked by snow. The installer may determine that a vent terminal must be higher than the minimum shown in codes, depending upon local conditions.

6. Locate the terminal so the vent exhaust does not settle on building surfaces or other nearby objects. Vent products may damage surfaces or objects.

7. If the boiler or water heater uses ducted combustion air from an intake terminal located on the same wall, see See Figure 5 and Figure 4 for proper spacing and orientation.

Figure 5. Multiple Side-Wall Terminals, Air and

Vent

located in accordance with ANSI Z223.1/NFPA 54 and applicable local codes. In Canada, the installation must be in accordance with CSA B149.1 or .2 and local applicable codes.

Consider the following when installing the terminal:

1. Figure 4 shows the requirements for mechanical vent terminal clearances for the U.S. and Canada.

2. Vent terminals for condensing appliances or appliances with condensing vents are not permitted to terminate above a public walkway, or over an area where condensate or vapor could create a nuisance or hazard.

3. Locate the vent terminal so that vent gases cannot be drawn into air conditioning system inlets.

4. Locate the vent terminal so that vent gases cannot enter the building through doors, windows, gravity inlets or other openings. Whenever possible, avoid locations under

3.3.2 Side Wall Combustion Air Terminal

Consider the following when installing the terminal.

1. Do not locate the air inlet terminal near a source of corrosive chemical fumes (e.g.,

cleaning uid, chlorine compounds, etc.).

2. Locate the terminal so that it will not be subject to damage by accident or vandalism. It must be at least 7 feet ( 2.1 m) above a public walkway.

3. Locate the combustion air terminal so that it cannot be blocked by snow. The National Fuel Gas Code requires that it be at least

12”

84”

213

Figure 4. Minimum Venting Distance

Page 14

12 inches (30 cm) above grade, but the installer may determine it should be higher, depending upon local conditions.

4. If the MagnaTech is side-wall vented to the same wall, use Figure 4 to determine the proper mounting locations.

5. Multiple vent kits should be installed such that the horizontal distance between outlet group and inlet group is 84” (213 cm). (See Figure 5)

6. The vent outlet must be at least 12” above the top of the air inlet, and must be at least 84” (213 cm) horizontally from the air inlet. (See Figure 5).

3.3.3 Vertical Vent Terminal

When the unit is vented through the roof, the vent must extend at least 3 feet (0.9 m) above the point at which it penetrates the roof. It must extend at least 2 feet (0.6 m) higher than any portion of a building within a horizontal distance of 10 feet (3.0 m), and high enough above the roof line to prevent blockage from snow. The vent terminal offered with the MagnaTech can be used in both vertical and horizontal applications. When the combustion air is taken from the roof, the combustion air must terminate at least 12” (30 cm) below the vent terminal.

3.3.4 Vertical Combustion Air Terminal

When combustion air is taken from the roof, a

eld-supplied rain cap or an elbow arrangement

must be used to prevent entry of rain water. The opening on the end of the terminal must be at least 12” (30 cm) above the point at which it penetrates the roof, and high enough above the roof line to prevent blockage from snow. When the vent terminates on the roof, the combustion air must terminate at least 12” (30 cm) below the vent terminal.

3.3.5 Installations in the Commonwealth

of Massachusetts

In Massachusetts the following items are required if the side-wall exhaust vent termination is less than seven (7) feet above

nished grade in the area of the venting,

including but not limited to decks and porches. (From Massachusetts Rules and regulations 248 CMR 5.08.)

1. Installation of Carbon Monoxide

Detectors

At the time of installation of the side wall

RADFORD WHITE

In Canada, refer to CAN/CSA B199.1

Figure 6. Combustion Air and Vent Through Roof

vented gas fueled appliance, the installing

plumber or gas-tter shall observe that a

hard-wired carbon monoxide detector with an alarm battery back-up is installed on

the oor level where the gas appliance is

to be installed. In addition, the installing

plumber or gastter shall observe that a

battery operated or hard-wired carbon monoxide detector with an alarm is installed on each additional level of the dwelling, building or structure served by the side-wall horizontally vented gas fueled equipment. It shall be the responsibility of the property

owner to secure the services of qualied

licensed professionals for installation of hard-wired carbon monoxide detectors.

a. In the event that the side-wall horizontally

vented gas fueled equipment is installed in a crawl space or an attic, the hard-wired carbon monoxide with alarm and battery back-up may be installed on the next

adjacent oor level.

b. In the event that the requirements of the

subdivision cannot be met at the time of completion of installation, the owner shall have a period of thirty (30) days to comply with the above requirements, provided, however, that during said thirty (30) day period, a battery operated carbon monoxide detector with an alarm be installed.

MagnaTech

BOILERS AND VOLUME WATER HEATERS

2. Approved Carbon Monoxide Detectors Each carbon monoxide detector shall

comply with NFPA 720 and be ANSI/UL

2034 listed and IAS certied.

3. Signage

A metal or plastic identication plate shall

be permanently mounted to the exterior of the building at a minimum height of eight (8) feet above grade directly in line with the exhaust vent terminal for horizontally vented gas fueled heating appliance or equipment. The sign shall read, in print no less than one-half (1/2) inch in size: “GAS VENT DIRECTLY BELOW, KEEP CLEAR OF ALL OBSTRUCTIONS.”

4. Inspection The state or local gas inspector of the

side-wall horizontally vented gas fueled appliance shall not approve the installation unless, upon inspection, the inspector observes carbon monoxide detectors and signage installed in accordance with the provisions of 248 CMR 5.08(2)(a) 1-4.

3.4 Common Vent Test

Note -This section does not describe a method

for common venting MagnaTech’s. It describes what must be done when a unit is removed from a common vent system. MagnaTech’s require special vent systems and fans for common vent. Contact the factory if you have questions about common venting MagnaTech’s.

When an existing boiler is removed from a common venting system, the common venting system is likely to be too large for proper venting of the appliances remaining connected to it.

Page 15

At the time of removal of an existing boiler, the following steps shall be followed with each appliance remaining connected to the common venting system placed in operation, while the other appliances remaining connected to the common venting system are not in operation.

1. Seal any unused openings in the common venting system.

2. Visually inspect the venting system for proper size and horizontal pitch and determine there is no blockage or restriction, leakage,

corrosion or other deciencies which could

cause an unsafe condition.

3. Insofar as is practical, close all building doors and windows and all doors between the space in which the appliances remaining connected to the common venting system are located and other spaces of the building. Turn on any clothes dryers and any appliance not connected to the common venting system. Turn on any exhaust fans, such as range hoods and bathroom exhausts, so they will operate at maximum speed. Do not operate

a summer exhaust fan. Close replace

dampers.

4. Place in operation the appliance being inspected. Follow the lighting instructions. Adjust thermostat so appliance will operate continuously.

5. Test for spillage at the draft hood relief

opening after ve minutes of main burner operation. Use the ame of a match or candle,

or smoke from a cigarette, cigar or pipe.

6. After it has been determined that each appliance remaining connected to the common venting system properly vents when tested as outlined above, return the doors,

windows, exhaust fans, replace dampers

and any other gas burning appliance to their previous conditions of use.

7. Any improper operation of the common venting system should be corrected so the installation conforms with the National Fuel Gas Code, ANSI Z223.1/NFPA 54 and/or CAN/CSA B149.1, National Gas and Propane Installation Code. When resizing any portion of the common venting system, the common

Page 16

(Place in section 3.1)

Model 1600 Model 2000 Model 2500 Model 3000 Model 3500 Model 4000

Screen for horizontal galvanized air pipe D2012104 D2012101 D2012101 D2012102 D2012103 D2012103

Screen for horizontal PVC air pipe CA012004 CA012001 CA012001 CA012002 CA012003 CA012003

Screen for horizontal polypropylene air pipe CA012204 CA012201 CA012201 CA012202 CA012203 CA012203

Screen for vertical galvanized air pipe D2012204 D2012201 D2012201 D2012202 D2012203 D2012203

Screen for vertical PVC air pipe CA012404 CA012401 CA012401 CA012402 CA012403 CA012403

Screen for vertical polypropylene air pipe CA012604 CA012601 CA012601 CA012602 CA012603 CA012603

Table 3a - Ducted Air Accessories

(Place in section 3.2)

Model 1600 Model 2000 Model 2500 Model 3000 Model 3500 Model 4000

Horizontal vent terminal for stainless steel D2012004 D2012001 D2012001 D2012002 D2012003 D2012003

Screen for horizontal CPVC vent CA012104 CA012101 CA012101 CA012102 CA012103 CA012103

Screen for vertical stainless steel vent D2012304 D2012301 D2012301 D2012302 D2012303 D2012303

Screen for vertical CPVC vent CA012504 CA012501 CA012501 CA012502 CA012503 CA012503

Table 3* - Vent Accessories

(Place in section 3.5)

Air intake screen for unit placed outdoors CA0011904 CA011901 CA011901 CA011902 CA0011903 CA0011903

Vent terminal for unit placed outdoors CA011803 CA011801 CA011801 CA011802 CA011803 CA011803

Model 1600 Model 2000 Model 2500 Model 3000 Model 3500 Model 4000

Table 7. Air & Vent accessories for Units Placed Outdoors

Section 4 GAS SUPPLY AND PIPING

4.0 Gas Supply and Piping

Gas piping should be supported by suitable

hangers or oor stands, not the appliance.

Installers should refer to local building and safety codes or, in the absence of such requirements, follow the National Fuel Gas Code, ANSI Z223.1 NFPA and/or CSA B149.1 installation codes.

Review the following instructions before

proceeding with the installation.

RADFORD WHITE

1. Verify that the appliance is tted for the

proper type of gas by checking the rating

Do not use open ame to check for leaks. An open ame could lead to explosion, which

could result in property damage, serious injury or death.

WARNING

plate. MagnaTech appliances are normally equipped to operate at elevations up to 2000 feet (610m). However, the appliance will function properly without the use of high altitude

modication at elevations up to 10,000 feet

Note - The MagnaTech appliance and all other gas appliances sharing the gas supply line

must be ring at maximum capacity to properly

measure the inlet supply pressure. The pressure can be measured at the supply pressure port on the gas valve. Low gas pressure could be an indication of an undersized gas meter, undersized gas supply lines and/or an obstructed gas supply line. MagnaTech units may be equipped with low and high gas pressure switches that are integrally vent limited. These types of devices do not require venting to atmosphere.

(3050 m).

2. The maximum inlet gas pressure must not exceed 13” W.C. (3.2kPa). The minimum inlet gas pressure is 4” W.C. (1.0kPa).

3. Table 8 and Table 9 offer some gas pipe sizing information. Refer to the applicable gas code for more detailed sizing information.

4. Run gas supply line in accordance with all applicable codes.

5. Locate and install manual shutoff valves in accordance with state and local requirements.

6. A sediment trap must be provided upstream of the gas controls.

7. All threaded joints should be coated with piping compound resistant to action of

liqueed petroleum gas.

8. The appliance and its individual shutoff valve must be disconnected from the gas supply piping during any pressure testing of that system at test pressures in excess of 1/2 PSIG (3.45kpa).

9. The unit must be isolated from the gas supply system by closing its individual manual shutoff valve during any pressure testing of the gas supply piping system at test pressures equal to or less than 1/2 PSIG (3.45kpa).

10. The appliance and its gas connection

MagnaTech

Nominal: 1½ 2 2½ 3 4 Actual ID: 1.61 2.067 2.469 3.068 4.026 Length (ft)

10 3,520 6,790 10,800 19,100 39,000 20 2,420 4,660 7,430 13,100 26,800 30 1,940 3,750 5,970 10,600 21,500 40 1,660 3,210 5,110 9,030 18,400 50 1,480 2,840 4,530 8,000 16,300 60 1,340 2,570 4,100 7,250 14,800

80 1,230 2,370 3,770 6,670 13,600 100 1,140 2,200 3,510 6,210 124,700 125 1,070 2,070 3,290 5,820 11,900 150 1,010 1,950 3,110 5,500 11,200 175 899 1,730 2,760 4,880 9,950 200 814 1,570 2,500 4,420 9,010 250 749 1,440 2,300 4,060 8,290 300 697 1,340 2,140 3,780 7,710 350 618 1,190 1,900 3,350 6,840 400 560 1,080 1,720 3,040 6,190

Notes:

1. Inlet pressure - 11.0 in w.c.

Capacity in Cubic Feet of Gas per Hour

Pipe Size (in.)

Natural Gas

Undiluted Propane

Pipe Size (in.)

Capacity in Cubic Feet of Gas per Hour

Nominal: 2 2½ 3 4 5 Nominal: 1½ 2 2½ 3 4 Actual ID: 2.067 2.469 3.068 4.026 5.047 Actual ID: 1.61 2.067 2.469 3.068 4.026

Length (ft) Length (ft)

10 4,020 6,400 11,300 23,100 41,800 10 3,520 6,790 10,800 19,100 39,000 20 2,760 4,400 7,780 15,900 28,700 20 2,420 4,660 7,430 13,100 26,800 30 2,220 3,530 6,250 12,700 23,000 30 1,940 3,750 5,970 10,600 21,500 40 1,900 3,020 5,350 10,900 19,700 40 1,660 3,210 5,110 9,030 18,400 50 1,680 2,680 4,740 9,660 17,500 50 1,480 2,840 4,530 8,000 16,300 60 1,520 2,430 4,290 8,760 15,800 60 1,340 2,570 4,100 7,250 14,800 70 1,400 2,230 3,950 8,050 14,600 80 1,230 2,370 3,770 6,670 13,600 80 1,300 2,080 3,670 7,490 13,600 100 1,140 2,200 3,510 6,210 124,700

90 1,220 1,950 3,450 7,030 12,700 125 1,070 2,070 3,290 5,820 11,900 100 1,160 1,840 3,260 6,640 12,000 150 1,010 1,950 3,110 5,500 11,200 125 1,020 1,630 2,890 5,890 10,600 175 899 1,730 2,760 4,880 9,950 150 928 1,480 2,610 5,330 9,650 200 814 1,570 2,500 4,420 9,010 175 854 1,360 2,410 4,910 8,880 250 749 1,440 2,300 4,060 8,290 200 794 1,270 2,240 4,560 8,260 300 697 1,340 2,140 3,780 7,710 150 704 1,120 1,980 4,050 7,320 350 618 1,190 1,900 3,350 6,840 300 638 1,020 1,800 3,670 6,630 400 560 1,080 1,720 3,040 6,190 350 587 935 1,650 3,370 6,100 Notes: 400 546 870 1,540 3,140 5,680 1. Inlet pressure - 11.0 in w.c.

Notes: 2. Pressure drop - 0.5 in w.c.

3. Specific gravity - 1.50

4. Schedule 40 metallic pipe

5. Intended use - Pipe sizing between single- or second-stage

4. Schedule 40 metallic pipe (low pressure) regulator and appliance.

Capacity in Cubic Feet of Gas per Hour

Pipe Size (in.)

Natural Gas

Undiluted Propane

Pipe Size (in.)

Capacity in Cubic Feet of Gas per Hour

Undiluted Propane

Pipe Size (in.)

Capacity in Cubic Feet of Gas per Hour

Undiluted Propane

Pipe Size (in.)

Capacity in Cubic Feet of Gas per Hour

BOILERS AND VOLUME WATER HEATERS

The following are gas line sizing examples from the

National Fuel Gas Code. Size your gas lines properly, based on your installation, and all applicable codes.

SCH 40 METAL PIPE CAPACITY FOR 0.60 SPECIFIC GRAVITY

NATURAL GAS

NOMINAL PIPE SIZE @ 0.30” W.C. PRESSURE DROP

Nominal: 2 2½ 3 4 5 Actual ID: 2.067 2.469 3.068 4.026 5.047 Length (ft)

10 4,020 6,400 11,300 23,100 41,800 20 2,760 4,400 7,780 15,900 28,700 30 2,220 3,530 6,250 12,700 23,000 40 1,900 3,020 5,350 10,900 19,700 50 1,680 2,680 4,740 9,660 17,500 60 1,520 2,430 4,290 8,760 15,800 70 1,400 2,230 3,950 8,050 14,600

80 1,300 2,080 3,670 7,490 13,600

90 1,220 1,950 3,450 7,030 12,700 100 1,160 1,840 3,260 6,640 12,000 125 1,020 1,630 2,890 5,890 10,600 150 928 1,480 2,610 5,330 9,650 175 854 1,360 2,410 4,910 8,880 200 794 1,270 2,240 4,560 8,260 150 704 1,120 1,980 4,050 7,320 300 638 1,020 1,800 3,670 6,630 350 587 935 1,650 3,370 6,100 400 546 870 1,540 3,140 5,680

Table 8. Pipe Capacity for Natural Gas

Page 17

1. Inlet pressure - Less than 2 psi

2. Pressure drop - 0.5 in w.c.

3. Specific gravity - 0.60

SCHED 40 METAL PIPE CAPACITY FOR 1.50 SPECIFIC GRAVITY

UNDILUTED PROPANE

NOMINAL PIPE SIZE @ 11” W.C. INLET AND 0.5” W.C. PRESSURE

DROP

Nominal: 1½ 2 2½ 3 4 Actual ID: 1.61 2.067 2.469 3.068 4.026

Length (ft)

10 3,520 6,790 10,800 19,100 39,000

20 2,420 4,660 7,430 13,100 26,800

30 1,940 3,750 5,970 10,600 21,500 40 1,660 3,210 5,110 9,030 18,400 50 1,480 2,840 4,530 8,000 16,300 60 1,340 2,570 4,100 7,250 14,800

Table 9. Pipe Capacity for Propane

Page 18

Gas Pipe

Boiler Thermal

Efficiency

Boiler Combustion

Efficiency

Water

Content

Vent

Diameter

Vent

Length

Water Heater

Thermal Efficiency

MBH kW %

1600 1600 469 96 2000 1999.0 585 96 2500 2499.0 732 96 3000 3000 878 95

3500 3500 1025 96

4000 4000 1171 96

Model

Flow

Head Loss

Flow

Head Loss

Flow

Head Loss

Flow

Head Loss

Input Rate

14°C

17°C

19°C

22°C

Output Rate

ModelModel

Dimensional Data Sizing Data

Water Pipe

Gas Pipe

Boiler Thermal

Efficiency

Boiler Combustion

Efficiency

Water

Content

Vent

Diameter

Vent

Length

Inches cm Inches cm Inches cm Inches cm (NPT) (NPT) MBH kW MBH kW % % lbs kg lbs kg lbs kg Gallons in (cm) ft (m)

2000 29.3 75 77 196 38.0 97 57.0 145 2.5 1.5 1600 1600 469 1520 445 95.0 96.0 1390 630 1562 709 1590 721 22 6 (15) 100 (30.5) 2000 29.3 75 77 196 38.0 97 57.0 145 2.5 1.5 2000 1999.9 586 1895 555 95.0 93.6 1390 630 1562 709 1590 721 22 8 (20) 100 (30.5) 2500 29.3 75 77 196 38.0 97 57.0 145 2.5 1.5 2500 2499.0 733 2374 695 95.0 93.8 1785 810 2039 925 1985 900 31 8 (20) 100 (30.5) 3000 30.8 78 87 221 41.5 105 60.5 154 3 2 3000 3000 878 2814 824 95.0 93.8 1785 810 2039 925 1985 900 31 10 (25) 100 (30.5) 3500

30.8 78 87 221 41.5 105 60.5 154 3 2 3500 3500 1025 3276 959 95.0 93.6 2278 1033 2742 1244 2478 1124 56 10 (25) 100 (30.5)

4000 34.5 88 97 246 52.0 132 70.0 178 4 2.5 4000 4000 1171 3724 1090 95.0 93.1 2278 1033 2742 1244 2478 1124 56 12 (30) 100 (30.5)

Water Heater

Thermal Efficiency

Boiler Water Flow Requirements

Model

Flow

Head Loss

Flow

Head Loss

Flow

Head Loss

Flow

Head Loss

Flow

Head Loss

GPM Feet GPM Feet GPM Feet GPM Feet LPM m LPM m LPM m LPM m

1600 122 19.4 100 14.0 87 10 76 8 1600 462 5.9 379 4.3 329 3 288 2.5 2000 150 30 128 23.5 109 17.1 95 13.6 2000 568 9.2 485 7.2 413 5.2 360 4.2 2500 190 34 158 23.6 136 17.6 119 13.6 2500 719 10.0 599 7.0 514 5.0 449 4.1 3000 226 47 190 34.2 164 25.8 142 18.9 3000 856 14.3 719 10.4 621 7.9 538 5.8 3500 266 41 222 30.6 190 23.6 166 18.6 3500 1007 12.0 839 9.0 719 7.0 629 6.0 4000 300 48 255 38.2 218 28.5

190 22.5 4000 1136 14.6 965 11.6 825 8.7 719 6.9

40°F

14°C

17°C

19°C

22°C

Model

A B C D

Temperature Rise in °C

30°F

Temperature Rise in °F

25°F

35°F

Water Flow Requirements (for water heater submittal)

Model Flow Rate Temp Rise Headloss Flow Rate Temp Rise Headloss Flow Rate Temp Rise Headloss Flow Rate Temp Rise Headloss

GPM °F Ft LPM °C m GPM °F Ft LPM °C m

1600 152 20 31.0 525 11.1 10.1 177 17 41.0 670 9.4 12. 5 2000 152 25 33.0 575 14 10.1 177 21 43.9 670 12 13.4 2500 190 25 33.7 719 13.9 10.0 220 21 46.0 833 11.7 14 3000 190 30 36.0 719 17 11.0 220 26 46.0 833 14 14 3500 222 30 30.6 839 17 9.0 266 25 40.6 1007 14 12 4000 224 34 30.0 848 19 9.1 266 29 41.2 1007 16 12.6

Allowable pH: 6.5 to 9.5

Water Hardness

1-10 grains per gallon

Water Hardness

11-15 grains per gallon

Water Hardness

11-15 grains per gallon

Water Flow Requirements (for water heater submittal)

Model Flow Rate Temp Rise Headloss Flow Rate Temp Rise Headloss Flow Rate Temp Rise Headloss Flow Rate Temp Rise Headloss

GPM °F Ft LPM °C m GPM °F Ft LPM °C m

Water Hardness

1-10 grains per gallon

Water Hardness

11-15 grains per gallon

Section 5 WATER FLOW REQUIREMENTS

5.1 MagnaTech Boiler Flow and Head Requirements

RADFORD WHITE

Model

Headloss is for boiler only (no piping)

* * *

Model

Table 10. Boiler Flow and Head Requirements

5.2 MagnaTech Water Heater Flow and Head Requirements

Table 11. Water Heater Flow and Head Requirements

MagnaTech

BOILERS AND VOLUME WATER HEATERS

Section 6 WATER CONNECTIONS BMGH BOILERS

6.1 BMGH System Piping: Hot Supply Connections

Note -This appliance must be installed in a closed

pressure system with a minimum of 12 psi (82.7 kPa) static pressure at the boiler.

The hot water piping should be supported

by suitable hangers or oor stands. Do not

support the piping with this appliance. The hangers used should allow for expansion and contraction of pipe. Rigid hangers may transmit noise through the system resulting from the piping sliding in the hangers. We recommend that padding be used when rigid hangers are installed. Maintain 1” (2.5 cm) clearance to combustibles for all hot water pipes.

Pipe the discharge of the relief valve (full size) to a drain or in a manner to prevent injury in the event of pressure relief. Install an air purger,

an air vent, an expansion tank, a hydronic ow

check valve in the system supply loop, and any other devices required by local codes. The

minimum ll pressure must be 12 psig (82.7

kPa). Install shutoff valves where required by code.

Suggested piping diagrams are shown in Figure 7 through Figure 10. These diagrams are meant only as guides. Components required by local codes must be properly installed.

TheMagnaTech’sefciencyishigherwith

lower return water temperatures. Therefore, to get the best low return temperature with multiple boilers, pipe as shown in Figure 9 and Figure 10.

6.2 BMGH Cold Water Make-Up

1. Connect the cold water supply to the inlet

connection of an automatic ll valve.

2. Install a suitable back ow preventer between the automatic ll valve and the

cold water supply.

3. Install shut off valves where required.

Page 19

be equipped with ow control valves or other

automatic means to prevent gravity circulation of the boiler water during the cooling cycle.

A boiler installed above radiation level, or as required by the authority having jurisdiction, must be provided with a low water cutoff device either as a part of the boiler or at the time of boiler installation.

6.3 BMGH Freeze Protection

MagnaTech units may be installed indoors or outdoors. If installing outdoors in a location that may experience freezing temperatures, precautions must be taken to prevent water in the heat exchanger and condensate inside and outside of the boiler from freezing. Damage due to freezing water or condensate is not covered by the warranty.

If installed indoors, and there is an event such as a power outage, interruption of gas supply, failure of system components, activation of safety devices, etc., this may prevent a boiler

from ring. Any time a boiler is subjected to freezing conditions, and the boiler is not

abletore,and/orthewaterisnotableto

circulate, there is a risk of freezing in the boiler or in the pipes in the system. When

water freezes, it expands. This may result in bursting of pipes, or damage to the boiler,

and this could result in leaking or ooding

conditions.

Do not use automotive antifreeze. To help prevent freezing, Bradford White recommends the use of inhibited glycol concentrations between 20% and 35% glycol. Typically, this concentration will serve as burst protection for temperatures down to approximately -5°F (-20°C). If temperatures are expected to be lower than -5°F (-20°C), glycol concentrations up to 50% can be used. When concentrations

greaterthan35%areused,waterowrates

must be increased to maintain a 20°F to 25°F temperature rise through the boiler.

In some installations, a hot water heating boiler is connected to heating coils located in an air handling appliance where the coils may be exposed to refrigerated air circulation. In these cases, the boiler piping system must

Page 20

RADFORD WHITE

WARNING

Glycol must not be used in domestic hot water applications. Refer to Section 7 for instructions on freeze protection for BMGV units (domestic hot water).

Different glycol products may provide varying degrees of protection. Glycol products must be maintained properly in a heating system, or they may become ineffective. Consult the

glycol specications, or the glycol manufacturer, for information about specic products,

maintenance of solutions, and set up according to your particular conditions.

The following manufacturers offer glycols, inhibitors, and anti foamants that are suitable for use in the MagnaTech. Please refer to the manufacturers instructions for proper selection and application.

• Sentinel Performance Solutions Group

• Hercules Chemical Company

• Dow Chemical Company The boiler control offers some assistance

with freeze protection, as long as the boiler is

energized, and able to re.

1. If the outlet sensor detects less than 45°F, the control energizes the boiler pump.

2. If the outlet sensor detects less than 35°F,

the control will re at low rate.

3. Once in freeze protect mode, the boiler will remain in that state until the outlet sensor detects greater than 50°F.

A condensate drain trap is included with the MagnaTech and is designed to drain the boiler of condensate. The vent condensate should be drained through a drain tee located in the vent line. This will help prevent excessive condensate from entering the boiler condensate trap.

Connect a 3/4” PVC pipe between the drain

connection and a oor drain (or condensate pump if a oor drain is not accessible).

The condensate drain must be installed to prevent the accumulation of condensate. When a condensate pump is not used, the tubing must continuously slope downward toward the drain with no spiraling.

Consult local codes for the disposal method.

Caution

Condensate is mildly acidic (pH=5), and

may harm some oor drains and/or pipes,

particularly those that are metal. Ensure that the drain, drainpipe, and anything that will come in contact with the condensate can withstand the acidity, or neutralize the condensate before disposal. Damage

caused by failure to install a neutralizer kit or to adequately treat condensate will not be the manufacturer’s responsibility.

6.4 BMGH Suggested Piping

Schematics

Figure 7 through Figure 10 show suggested

piping congurations for BMGH boilers.

These diagrams are only meant as guides. All components or piping required by local code must be installed.

6.5 Condensate Drain Trap

MagnaTech

BOILERS AND VOLUME WATER HEATERS

Space heating zone circuits

Space heating zone circuit

Page 21

Low temp. radiant zone

Air vent

Water feed controls

4 pipe dia. max.

System pump

4 pipe dia. max. 4 pipe dia. max. 4 pipe dia. max.

Note This drawing is a schematic representation of a piping style, and is not intended to be used as a working installation drawing. Local code requirements must be met.

Figure 7. Hydronic Piping — Single Boiler, Multiple Temperature Zones

Zoning with circulators

Page 22

Note This drawing is a schematic representation of a piping style, and is not intended to be used as a working installation drawing. Local code requirements must be met.

RADFORD WHITE

Air vent

Expansion tank

4 pipe dia. max.

Low temp. radiant zone

Water feed controls

Indirect DHW tank

Low temp. radiant zone

Anti-scald mixing valve

Domestic hot water out

Figure 8. Hydronic Piping — Single Boiler with Low Temperature Zones and Indirect DHW Tank

Indirect tank directly off of boiler

Cold water

MagnaTech

BOILERS AND VOLUME WATER HEATERS

Page 23

Note This drawing is a schematic representation of a piping style, and is not intended to be used as a working installation drawing. Local code requirements must be met.

Space heating zone circuit

Air vent

Water feed controls

Expansion tank

4 pipe dia. max.

Space heating zone circuits

Low temp. radiant zone

4 pipe dia. max. 4 pipe dia. max.

Common piping must be sized for the combined water ow of all of the boilers.

Figure 9. Hydronic Piping — Multiple Boilers, Multiple Temperature Zones, Reverse Return.

Zoning with circulators

Page 24

Space heating zone circuit

Air vent

Space heating zone circuits

High temp. space heating zone circuit

RADFORD WHITE

Water feed controls

Expansion tank

4 pipe dia. max.

Common piping must be sized for the combined water ow of all the boilers.

Note This drawing is a schematic representation of a piping style, and is not intended to be used as a working installation drawing. Local code requirements must be met.

4 pipe dia. max. 4 pipe dia. max.

Note Indirect pump must be sized for boiler and indirect

Indirect DHW tank

Anti-scald mixing valve

Domestic hot water out

Cold water

Figure 10. Hydronic Piping — Multiple Boilers, Indirect DHW Off of One Boiler

Note In this piping arrangement, the boiler pump must turn o during DHW operation.

MagnaTech

BOILERS AND VOLUME WATER HEATERS

Section 7 WATER CONNECTIONS BMGV UNITS

7.1 BMGV Water Quality

BMGV water heaters must be installed in water conditions of 15 gpg hardness or less, with a pH range of 6.5 to 9.5 pH. Values outside of this range may reduce the life expectancy of the product. Operating the BMGV in water with higher hardness levels will cause heat exchanger fouling, erosion, or corrosion, leading to premature component failure, reduced

efciency, heat exchanger failure or system

failure. Failure of this type will not be warranted. If the water in use exceeds the conditions recommended, water softeners or other devices should be installed to improve water quality.

Page 25

7.2 BMGV Suggested Piping Schematics

Figure 11 through Figure 13 show suggested

piping congurations for BMGV boilers.

These diagrams are only meant as guides. All components or piping required by local code must be installed.

7.3 BMGV Piping Requirements

The water piping should be supported by

suitable hangers and oor stands. Do not

support the piping with this appliance. The hangers used should allow for expansion and contraction of copper pipe. Rigid hangers may transmit noise through the system resulting from piping sliding in the hangers. We recommend that padding be used when

NOTE: This drawing shows

Location of pump

TPRV

NOTES:

1. Locate BMGV DHW sensor or remote aquastat well in lower 1/3 of tank.

2. Back ow preventer may be required - check local codes.

3. Thermal expansion tank may be required - check local codes.

4. Caution: Pump sizing must be based upon water hardness at job site.

5. If the tank does not have a tapping for the cold water supply, the supply may be run to the pipe between the tank and boiler inlet.

suggested piping conguration and

valving. Check with local codes and ordinances for additional requirements.

Supply

Building return

Expansion tank

Cold water supply

Figure 11. DHW Piping - One Heater, One Vertical Tank

Page 26

RADFORD WHITE

rigid hangers are installed. Maintain 1” (2.5 cm) clearance to combustibles for hot water pipes.

Pipe the discharge of the relief valve (full size) to the drain or in a manner to prevent injury in the event of pressure relief. Install a diaphragm-

type expansion tank, ow check, and shutoff

valves where needed or as required by code. The piping should be installed so that each

pump supplies ow only to the heater to which it

is attached.

7.4 BMGV Cold Water Make-Up

The cold water make-up may be connected to the tank as shown in Figure 11 through Figure

13. If the tank does not have a tapping for the cold water supply, the supply may be run to

Cold water supply

the pipe between the tank and boiler inlet.

Install back-ow preventers and shut-offs

where needed or required by code.

7.5 BMGV Freeze Protection

If installing outdoors in a location that may experience freezing temperatures, precautions must be taken to prevent water in the heat exchanger and condensate inside and outside of the boiler from freezing. Damage due to freezing water or condensate is not covered by the warranty.

If installed indoors, and there is an event

NOTES:

1. Locate the BMGV DHW sensor or remote aquastat well in lower 1/3 of tank.

2. Back ow preventer may be required - check local

codes.

3. Thermal expansion tank may be required check local codes.

Caution: Pump sizing must be based upon water

Building return

hardness at job site.

5. If the tank does not have a tapping for the cold water supply, the supply may be run to the pipe between the tank and boiler inlet.

Pump

Supply

Expansion tank

TPRV

Ball valve (typical)

TPRV

Figure 12. DHW Piping - One Heater, Two Vertical Tanks

NOTE: This drawing shows

suggested piping conguration and

valving. Check with local codes and ordinances for additional requirements.

+ 86 hidden pages

Bradford White BMGV3500, BMGH4000, BMGH2500, BMGV4000, BMGH2000 Installation And Operation Instructions Manual

Specifications and Main Features

Frequently Asked Questions

User Manual