Bradford-White Corp B4 warranty Site Location, Installation Information, Outdoor Installation

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Copper Brute B4 Volume Water Heaters Page 5

e.Slide the adapter plate over the bottom of the stack extension as shown in Figure 5. Fit the stack extension down over the flue transition ring. Seat the adapter plate on the top assembly and secure it with two screws (see Figure 6).

f.Indoor models, size 175 and 250 only, require an adapter cable (included with product). The cable connects the blocked vent safety switch (BVSS) on the bell of the external draft hood to the 6-position Molex plug on the side of the unit (see Figure 7). Refer to instruction sheet included with cable.

2.3Site Location

2.3.1 Installation Information

WARNING

Improper installation or maintenance can cause nausea or asphyxiation from carbon monoxide in flue gases which could result in severe injury, property damage, or death.

Avoid placing the heater in locations where it can be damaged by water or condensate leakage. If this is not possible, provide a suitable drain pan to catch and divert any leakage. The pan must not block natural flow of air around the heater.

Locate the heater to provide adequate clearance on all sides for inspection, service and to provide adequate air circulation for proper operation.

Locate the heater so the clearances from combustible surfaces shown in Table 1 and Figure 8 are met.

Locate the heater on a waterproof floor with a floor drain and a 6 inch (152 mm) minimum curb on all four sides to protect the building if heater repairs are needed.

Clearance from:	Indoors		Outdoors
	inch	mm	inch	mm
Top	37	940	Unobstructed
Water conn. side	12	305	Unobstructed
Opposite side	6	152	6	152
Front	Alcove		Unobstructed
Rear	6	152	6	152
Vent*	6	152	—
Flooring	Combustible		Combustible

Service clearance = 36 inches (914mm) at front of heater, and 18 inches (457mm) at water connection side.

*1" (25mm) if double wall vent is used.

Table 1. Minimum Boiler Clearances from Combustible Surfaces.

Closet Installation	Room Installation
(unacceptable)	(acceptable)
A closet is any 4 sided enclosure	A room is any enclosure which is
which is less than 16* times the	at least 16* times greater than the
total volume of all the gas fired ap-	total volume of all the gas fired ap-
pliances within the enclosure.	pliances within the enclosure

Alcove Installation

(acceptable)

An alcove suitable for the installa- tion of a heater is a restricted sec- tion of a room not separated from the room by a door or partition and which meets the minimum clear- ances specified in this manual.

*When the ceiling height exceeds 8 feet, you are only allowed to con- sider 8 feet when calculating the total volume of the enclosure.

Figure 8. Alcove installation.

2.3.2 Outdoor Installation

Caution

Outdoor installations are not recommended in areas where the danger of snow blockage exists. Copper Brute heaters can be installed in the standard low- profile, grate top configuration as received from the factory, or with an optional vent cap.

Locate the heater in an open, unroofed area. Do not locate the heater below or adjacent to any doors, windows, louvers, grills, etc., which connect in any way with an inhabited area of a building, even though the access might be through another structure such as a garage or utility room (see Figure 9 and Table 1). There must be a minimum of 4 feet (1.22

m)horizontally and vertically between the heater and any door, window, or gravity inlet to a building (see Figure 10).

If the heater is installed close to a structure, protect it from rain water runoff with rain gutters on the roof or other measures. Do not locate the heater near sprinkler systems that could spray water on it.

Avoid locations where wind deflection off nearby structures might cause wind loading and downdraft conditions. Where downdraft conditions exist, locate the heater at least 3 feet (0.91 m) from the structure.