Bradford-White Corp BJVS, BJVT, Residential Gas-Fired Hydronic Boilers warranty Clearances, Flooring

Page 6 BRADFORD WHITE CORP.

Caution

Do not force motor operation when operator is fastened to the damper by moving the damper blade, turning the shaft or by turning the position indicator.

Attention

Ne pas tourner le registre manuellement avec ou sans courant électrique ou le moteur sera endommagé.

2.3.1 Clearances

The boiler must be placed to provide clearances on all sides for maintenance and inspection. There must also be minimum distances maintained from

Boiler Sizes		50-125	160-225
Clearances	in	cm	in	cm
Left side	6	15	6	15
Right side	6	15	6	15
Rear	6	15	6	15
Front	4	10	6	15
Flue	6	15	6	15
Top	23	48	36	91

Note: Clearances listed in Table 1 are manufacturer’s tested values. These are given as minimum values. Where local and national codes apply, and values are different than those listed in Table 1, use the greater value to ensure safe operation.

Table 1. Minimum Boiler Clearances

From Combustible Surfaces.

Dégagements Minimaux à Assurer Entre Ics Parois de

L’appareil et leo Constructions Combustibles

combustible surfaces (see Table 1).

At least 15" (381mm) access must be available in front of the boiler for burner removal. Consult local codes for clearances to hot water pipes and accessories.

If the boiler is to be installed in a garage, all burners and burner ignition devices must have a minimum 18" (457mm) clearance above the floor. The Model BJV-50 through BJV-100 boilers can

be installed in a closet, as long as the minimum clearances shown in Table 1 and Figure 3 are observed. Special attention should be paid to clearances between the front of the boiler and the closet door when it is closed.

Consult the American National Standard Z21.13 for more information concerning closet installations. In Canada, refer to the latest edition of CSA-B149.1.

	6 15
4*	6 15
10
	6 15

Dimensions in inches cm. *6" for models BJV160 to BJV225.

Figure 3. Closet and Alcove Installation (see Table 3).

2.3.2 Flooring

The boiler shall be installed on a level floor of noncombustible construction or on fire-resistant slabs or arches. Noncombustible flooring is defined as flooring material and surface finish not capable of being ignited and burning and with no combustible materials against the underside. Acceptable materials are those consisting entirely of a combination of steel, iron, brick, tile, concrete, slate, glass or plaster. Do not install the heater directly on a combustible wood or carpet floor without placing a noncombustible platform between the floor and the heater.

The boiler can be installed on a combustible floor if a noncombustible base assembly, available from , is used. See the boiler rating plate or the Parts List (Section 11) of this manual for the appropriate base part number. Boilers must never be installed

directly on carpeting.

As an alternative to the noncombustible base plate, in the United States, the National Fuel Gas Code allows a heater to be placed on a combustible surface when there is a platform under the heater made of hollow masonry no less than 4 inches (102 millimeters [mm]) thick, covered with sheet metal at least 24 gauge thick and extending beyond the full width and depth of the heater by at least 12 inches (305mm) in all directions. The masonry must be laid with ends unsealed, and joints matched to provide free circulation of air from side to side through the masonry (see Figure 4). If the boiler is installed in a carpeted alcove, the entire floor of the alcove must be covered by a noncombustible platform.

Figure 4. Typical Combustible Floor Installation.