Internet Version for Reference Only
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| Bradford White | |
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| Horizontal | Air Collar |
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Heater | Vent Collar | Vent Pipe | & Pipe | Max. Pipe | Max. No. | Side Wall | Side Wall | ||||
Size |
| Size | Diameter | Diameter | Length | of Elbows | Vent | Combustion | |||
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| 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* |
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(Category 1) | 6* |
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Vent |
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Horizontal | per UL1738 venting |
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(Category 3) | system supplier’s |
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Vent | instructions |
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*1" (2.5cm) when
**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
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
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
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
