Empire BF-10-1 Инструкции по установке и руководство пользователя - Страница 4
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Qualified Installing Agency
Installation and replacement of gas piping, gas utilization equipment or
accessories and repair and servicing of equipment shall be performed only
by a qualified agency. The term "qualified agency" means any individual,
firm, corporation, or company that either in person or through a represen-
tative is engaged in and is responsible for (a) the installation, testing, or
replacement of gas piping or (b) the connection, installation, testing,
repair, or servicing of equipment; that is experienced in such work; that
is familiar with all precautions required, and that has complied with all the
requirements of the authority having jurisdiction.
The installation must conform with local codes or, in the absence of local
codes, with the National Fuel Gas Code, ANSI Z223.1 (latest edition).*
*Available from the American National Standards Institute, Inc., 11 West 42nd St., New York, N.Y. 10036.
Water Vapor: A By-Product of Unvented Room Heaters
Water vapor is a by-product of gas combustion. An unvented room heater
produces approximately one (1) ounce (30ml) of water for every 1,000
BTU's (.3KW's) of gas input per hour.
Unvented room heaters are recommended as supplemental heat (a room)
rather than a primary heat source (an entire house). In most supplemental
heat applications, the water vapor does not create a problem. In most
applications, the water vapor enhances the low humidity atmosphere
experienced during cold weather.
The following steps will help insure that water vapor does not become a
problem.
1. Be sure the heater is sized properly for the application, including
ample combustion air and circulation air.
2. If high humidity is experienced, a dehumidifier may be used to help
lower the water vapor content of the air.
3. Do not use an unvented room heater as the primary heat source.
Provisions for Adequate Combustion and Ventilation Air
This heater shall not be installed in a confined space or unusually tight
construction unless provisions are provided for adequate combustion and
ventilation air.
The National Fuel Gas Code, ANSI Z223.1 defines a confined space as a
space whose volume is less than 50 cubic feet per 1,000 Btu per hour
(4.8m
3
per kw) of the aggregate input rating of all appliances installed in
that space and an unconfined space as a space whose volume is not less
than 50 cubic feet per 1,000 Btu per hour (4.8m
input rating of all appliances installed in that space. Rooms communicat-
ing directly with the space in which the appliances are installed, through
openings not furnished with doors, are considered a part of the unconfined
space.
The following example is for determining the volume of a typical area in
which the BF-20 may be located and for determining if this area fits the
definition of an unconfined space.
The input of the BF-20 is 20,000 Btu per hour. Based on the 50 cubic feet
per 1,000 Btu per hour formula, the minimum area that is an unconfined
space for installation of the BF-20 is 1,000 cubic feet, 50 cubic feet x 20
= 1,000 cubic feet. To determine the cubic feet of the area in which the BF-
20 is to be installed, measure the length, width and height of the area.
Example: The area measures 16 feet in length, 8 feet in width and 8 feet
in height, the area is 1,024 cubic feet. The BF-20 can be installed in this
unconfined space with no requirement to provide additional combustion
and ventilation air.
Warning: If the area in which the heater may be operated is smaller than
that defined as an unconfined space or if the building is of unusually tight
construction, provide adequate combustion and ventilation air by one of
the methods described in the National Fuel Gas Code, ANSI Z223.1,
Section 5.3 or applicable local codes.
Unusually Tight Construction
The air that leaks around doors and windows may provide enough fresh
air for combustion and ventilation. However, in buildings of unusually
tight construction, you must provide additional fresh air.
Unusually tight construction is defined as construction where:
a. Walls and ceilings exposed to the outside atmosphere have a
continuous water vapor retarder with a rating of one perm or less
with openings gasketed or sealed, and
b. Weatherstripping has been added on openable windows and
doors, and
Page 4
3
per kw) of the aggregate
c. Caulking or sealants are applied to areas such as joints around
window and door frames, between sole plates and floors, be-
tween wall-ceiling joints, between wall panels, at penetrations
for plumbing, electrical, and gas lines, and at other openings.
If the heater is installed in a building of unusually tight construction,
adequate air for combustion, ventilation and dilution of flue gases shall
be provided in accordance with ANSI Z223.1/NFPA54.
Clearances (Figure 1)
When facing the front of the appliance the following minimum clear-
ances to combustible construction must be maintained.
Left side 5 inches (127mm). Right side 5 inches (127mm).
Do not install in alcove or closet.
Rear wall 0 inches (0mm). Ceiling 36 inches (914mm).
Minimum vertical clearance from a projection above the appliance
(shelves, window sills, etc.) 36 inches (914mm).
Floor (top surface of carpeting, tile, etc.) 2 inches. (51mm)
Provide adequate clearances around air openings.
Adequate accessibility clearances for purposes of servicing and proper
operation must be provided.
Locating Gas Supply
The gas line can be routed either through the floor or wall. The gas line
opening should be made at this time. Location of the opening will be
determined by the position of floor joists and the valve and union used
for servicing.
Wall Mount Installation (Figure 2)
Refer to Figure 2 for measurements in order to locate (4) mounting holes
on wall. Figure 2 is the front view of the heater.
1. Remove lower louver from casing assembly (2 screws).
2. Remove reflector from casing assembly (2 screws).
3. Remove upper louver from casing assembly (2 screws).
On Solid Wall
1. After locating mounting holes, attach (4) #10 x 1" (25mm) screws
provided into the wall. Do not completely tighten screwheads to the
wall, leave a 1/8" (3mm) gap between screwheads and wall.
2. Mount heater onto the (4) screwheads and complete tightening
screwheads into the wall.
Attention! Use the following steps to properly align the upper
louver and the reflector with the heat shield.
a. When replacing upper louver, be sure the bottom lip of upper
louver goes behind the heat shield.
b. When replacing reflector, be sure the top lip of reflector goes in
front of the heat shield.
3. Connect the gas line.
On Sheet Rock Wall
1. After locating mounting holes, drill (4) 5/16" (8mm) diameter
holes into the wall.
Figure 1
R-4973