Installation / Operation Instruction Manual

Internet Version for Reference Only
BRADFORD WHITE
Page 4
B4 Volume Water Heater
Page 5
Figure 2. Typical Heater Installation with Base for Com-
bustible Floors, Example A.
Concrete Slab Must Extend Out A
Base For Combustible Floors
Concrete Slab - 4
" Minimum
Minimum Of
12" On All Sides
Roof - W
ood & Steel Construction
Unit
(End
View)
Base
Rail
Base For Combustible Floors
Raised Mounting
Platform (W
ood)
Mounting Platform Must Extend Out
A
Minimum Of 12" On All Sides
Unit
(End
View)
Base
Rail
20 GA
Galvanized
Sheet Metal
Cap
Flashing
Roof
Roof
Figure 3. Typical Heater Installation with Base for Com-
bustible Floors, Example B.
Figure 4. Typical Heater Installation with Base for Com-
bustible Floors, Example C.
Figure 5. Installation on Concrete Blocks or Tile.
Base Must Extend Out
Min. 12" On All Sides
Of Heater Frame
Met
al Plate 20
Ga. Min.
Under Entire
Heater
Concrete Blocks Or
Tile
Min.
7" High With 3" Min.
Air Openings
Blocks must provide solid base and be
braced so they cannot slip out of place. Air
openings in blocks must be arranged to
provide unobstructed opening through entire
width or length of base.
*
When the ceiling height exceeds 8 feet, you are only allowed to consider 8
feet when calculating the total volume of the enclosure.
Water
Heater
CLOSET INSTALLATION
(UNACCEPTABLE)
A closet is any 4 sided enclosure
which is less than 16
*
times the total
volume of all the gas red appliances
within the enclosure.
ROOM INSTALLATION
(ACCEPTABLE)
A room is any enclosure which is at
least 16
*
times greater than the total
volume of all the gas red appliances
within the enclosure.
Water
Heater
ALCOVE INSTALLATION
(ACCEPTABLE)
An alcove suitable for the installa-
tion of a water heater is a restricted
section of a room not separated from
the room by a door or partition and
which meets the minimum clearances
for the specic model water heater
listed below.
Figure 6. Alcove Installation.
Unit
(Front
View)
20 GA
Galvanized
Sheet Met
al
Cap
Flashing
Roof
Roofing
4X4
Stringer
Base
Rail
Base
for Combustible Floors
Table 1. Minimum Heater Clearances
From Combustible Surfaces.
Clearance Indoor Outdoor
From (inches) (inches)
Top 30 Unobstructed
Water Conn. Side 12 24
Opposite Side 6 24
Front Alcove Unobstructed
Rear 8 24
Vent Pipe* 6 —
Hot Water Pipes Per Code Per Code
*1" when using type B Vent (refer to Manufacturer's
Instructions