Bradford-White Corp BWCV SECTION Venting and Combustion Air, From Outside Wall, Bradford White

Page 6
1.6 Locating Pump-Mounted Water Heater with Respect to Storage Tank(s)

Internet Version for Reference Only

Page 6

 

 

 

 

 

 

 

 

 

Bradford White

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Horizontal

Air Collar

 

 

 

 

 

Heater

Vent Collar

Vent Pipe

& Pipe

Max. Pipe

Max. No.

Side Wall

Side Wall

Size

 

Size

Diameter

Diameter

Length

of Elbows

Vent

Combustion

 

 

 

 

 

 

 

 

 

 

Terminal

Air Terminal

 

in.

cm

in.

cm

in

cm

ft.

m

 

Part Number

Part Number

500

6

15

6

15

6

15

50

15

3

CA001401

20260701

750

8

20

6

15

6

15

50

15

3

CA001401

20260701

1000

10

25

8

20

8

20

50

15

3

CA001402

20260703

1250

12

30

8

20

8

20

50

15

3

CA001403

20260703

1500

12

30

8

20

8

20

50

15

3

CA001403

20260703

1750

14

36

8

20

8

20

50

15

3

CA001403

20260703

2000

14

36

12

30

12

30

50

15

3

CA001404

20260706

Table 1. Horizontal Vent / Combustion Air Parameters.

 

Required

Recommended

Appliance

Clearance From

Service Access

Surface

Combustible Material

Clearance

 

inches

cm

inches

cm

Left Side

1

2.5

24

61

Right Side

1

2.5

24

61

Top

1

2.5

12

30

Back

1

2.5

**12**

30**

Front

1

2.5

36

91

Vertical

 

15.2*

 

 

(Category 1)

6*

 

 

Vent

 

 

 

 

Horizontal

per UL1738 venting

 

 

(Category 3)

system supplier’s

 

 

Vent

instructions

 

 

*1" (2.5cm) when b-vent is used.

**When vent and/or combustion air connects to the back, recommended clearance is 36" (91cm).

Table 2. Clearances.

1.6 Locating Pump-Mounted Water Heater with Respect to Storage Tank(s)

For best results, a pump-mounted water heater should be located within 15 feet (4.6m) of the storage tank(s). The pump is sized for 30 feet (9.1m) of piping.

If the heater must be installed with longer piping runs, then larger diameter pipe or tubing shall be used. Consult the factory for assistance.

1.7Locating Appliance for Correct Horizontal Vent/Ducted Air Distance

From Outside Wall

The forced draft combustion air blower/blowers in the appliance has/have sufficient power to pull air and vent properly when the following guidelines for horizontal air and vent are followed (see Table 1).

NOTE: On models 750-2000, the vent collar size is larger than the size of the vent pipe that can be used. Vent collar size and horizontal pipe diameters can be found in Table 1. The larger vent collar size is to accommodate Category I (vertical) vent systems.

NOTE: When located on the same wall, the combustion air intake terminal must be installed a minimum of 12" (30cm) below the exhaust vent terminal and separated by a minimum of 36 inches (91cm) horizontally.

The air intake terminal must be installed high enough to avoid blockage from snow, leaves and other debris.

SECTION 2.

Venting and Combustion Air

2.1Combustion Air

Copper Brute II water heaters must have

provisions for combustion and ventilation air in accordance with section 5.3, Air for Combustion and Ventilation, of the National Fuel Gas Code, ANSI Z223.1, or Sections 7.2, 7.3 or 7.4 of CSA B149.1, Installation Codes, or applicable provisions of the local building codes.

A Copper Brute II heater may receive combustion air from the space in which it is installed, or it can be ducted directly to the unit from the outside. Ventilation air must be provided in either case.

2.1.1Combustion 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, which follow. Where ducts are used, they shall 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 inches (30 cm) of the top and one commencing within 12 inches (30 cm) 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 (5.5 square cm/kW) of total input rating of all equipment in the enclosure. When communicating to

Page 5 Page 7
Image 6
Page 5 Page 7
Contents Installation and Operation Instructions Internet Version for Reference OnlyInstallation and Operation Instructions for Copper BruteSECTION 8. Trouble Shooting TABLE OF CONTENTSSECTION 7. Maintenance SECTION 9. Wiring DiagramsSECTION General Information 1.1 Introduction1.2 Model Identification 1.4 Dimensions 1.3 Warranty1.5 Locating the Appliance Figure 1. Dimensional Data From Outside Wall SECTION Venting and Combustion Air1.6 Locating Pump-Mounted Water Heater with Respect to Storage Tanks 2.1 Combustion Air2.1.2 Intake Combustion Air 2.2.2 Category I Vent 2.2 Venting2.2.1 Vent Categories 2.2.3 Common Venting SystemsFigure 3. Combustion Air and Vent Through Side Wall 2.3.1 Side Wall Vent Terminal 2.3 Locating Vent & Combustion Air TerminalsImportant Note Massachusetts Code Requirement 2.3.2 Side Wall Combustion Air Terminal2.3.3 Vertical Vent Terminal 2.4 Common Vent Test2.5 Vent Terminals for Outdoor Units 2.3.4 Vertical Combustion Air TerminalSECTION Gas Supply and Piping 3.1 Gas Supply and Piping4.2 Hot Water Supply Piping - Water Heater SECTION Water Connections Copper Brute II Water Heater4.1 Water System Piping Water Heater 4.3 Water Flow Requirements - Water HeaterTable 8. Water Flow Requirements Figure 4. Water Heater Piping - One Heater, One TankFigure 5. Water Heater Piping - Multiple Heaters, One Tank Figure 6. Water Heater Piping - One Heater, Multiple Tanks Figure 7. Water Heater Piping - Multiple Heaters, Multiple Tanks 4.4 Combined Water Heating potable and Space Heating - Water Heater 5.1 Main PowerSECTION Electrical Connections 4.5 Freeze Protection - Water Heater5.3 External Staging Control Wiring AVERTISSEMENTSECTION Operating Instructions 6.1 Sequence of Operation6.2 Programming the Temperature Control 6.2.2 Choosing the Mode 6.2.1 System Piping “Primary Secondary Piping”“Parallel Piping” 6.2.3 Programming6.3.3 for more information BOIL MAX Boiler Maximum Temperature Boiler Start BOIL START The BOIL 6.2.4 Choosing the Mode for your Application Mechanical aquastat in a domestic hot water storage tank6.3 Advanced Topics Mode 5 Primary secondary piping with outdoor reset6.3.1 Differential 6.3.2 Staging Mode6.3.3 Boiler Minimum BOIL MIN 6.3.6 Pump Operation 6.3.4 Boiler Maximum BOIL MAX6.3.5 Boiler Target Temperature 6.3.7 Set point Operation6.3.9 Outdoor Reset Operation Outdoor Design OUTDR DSGN - The6.3.10 External Heater Operation 6.3.11 Limit Controls 6.4 Operating the Burner and Set Up6.4.1 Set Up for 0 to 2500 Feet Altitude 6.3.12 Advanced Programming Mode6.5 Shutting Down the Copper Brute SECTION Maintenance7.1 System Maintenance 6.6 To Restart the Copper Brute7.2 Appliance Maintenance and Component Description 7.2.1 Burners 7.2.4 Manual Reset High Limit Control7.2.5 Automatic Reset High Limit Control 7.2.2 Filter7.2.10 Transformer 7.2.12 Flow Switch7.2.9 Ignition Sensors 7.2.11 Blowers8.2 Delayed Ignition - Possible Causes SECTION Trouble Shooting8.1 Resolving Lockouts 8.3 Short CyclingERROR DISPLAYED DESCRIPTION OF ERROR8.6 Troubleshooting Copper Brute II Controls SECTION Wiring Diagrams Figure 18. Copper Brute II 500 - 750 Ladder DiagramFigure 19. Copper Brute II 1000 Ladder Diagram Figure 20. Copper Brute II 1250 - 2000 Ladder Diagram Figure 21. Copper Brute II 500 - 1000 Wiring Schematic Figure 22. Copper Brute II 1250 - 2000 Wiring Schematic Note Positions of field wiring terminals may vary, but Figure 23. Field Wiringterminal designations are as indicated Figure 24. Field Reference OnlyWiring for Modes 1 MODEInternet Version for Reference Only25. Field Wiring for Mode Copper Brute II 1250, 1500, 1750 & 2000 4-Stage Heater
Related manuals
Manual 64 pages 39.09 Kb
Top Page Image Contents