WARNING
FLAMMABLE ITEMS, PRESSURIZED CONTAINERS OR ANY OTHER POTENTIAL FIRE HAZARDOUS ARTICLES MUST NEVER BE PLACED ON ORADJACENT TO THE HEATER. OPEN CONTAINERS OR FLAMMABLE MATERIAL SHOULD NOT BE STORED OR USED IN THE SAME ROOM WITH THE HEATER.
When installing the heater, consideration must be given to proper location. Location selected should be as close to the stack or chimney as practicable, with adequate air supply and as centralized with the piping system as possible.
THE HEATER MUST NOT BE LOCATED IN AN AREA WHERE IT WILL BE SUBJECT TO FREEZING.
LOCATE IT NEAR A FLOOR DRAIN. THE HEATER SHOULD BE LOCATED IN AN AREA WHERE LEAKAGE FROM THE HEATER OR CONNECTIONS WILL NOT RESULT IN DAMAGE TO THE ADJACENT AREA OR TO LOWER FLOORS OF THE STRUCTURE.
WHEN SUCH LOCATIONS CANNOT BE AVOIDED, A SUITABLE DRAIN PAN SHOULD BE INSTALLED UNDER THE HEATER. Such pans should be fabricated with sides at least 2" (51mm) deep, with length and width at least 2" (51mm) greater than the diameter of the heater and must be piped to an adequate drain. The pan must not restrict combustion air flow.
For appliance installation locations with elevations above 2000 feet (610m), refer to HIGH ALTITUDE INSTALLATIONS section of this manual for input reduction procedure.
LEVELING
If the unit is not level, insert the bolts which were used in crating into the legs to correct this condition.
CLEARANCES
These heaters are approved for installation on combustible flooring in an alcove when the minimum clearance from any combustion construction are followed as indicated in figure 6 and Table 4.
Model BTI 366 is approved for installation on non-cumbustible flooring or combustible flooring with leg kit part no. 6570.
In all installations the minimum combustible clearances from vent piping shall be 6" (152mm). Vent piping passing through a combustible wall or ceiling must be a continuous run (no joints) and retain the 6" (152mm) clearance unless an approved reducing thimble is used.
A service clearance of 24" (610mm) should be maintained from serviceable parts, such as relief valves, flue baffles, thermostats, cleanout openings or drain valves.
The units are approved for installation with side, rear and ceiling clearances as indicated below:
| MINIMUM CLEARANCES TO COMBUSTIBLES |
MODEL | | ”A” | ”B” | ”C” | ”D” |
| | RIGHTSIDE | LEFTSIDE | BACK | CEILING |
BTI-120 | | 2” (51mm) | 2” (51mm) | 2” (51mm) | 12” (305mm) | |
BTI-154 | | 1” (25.4mm) | 1” (25.4mm) | 1” (25.4mm) | 12” (305mm) | |
BTI-180 | | 3” (76mm) | 3” (76mm) | 3” (76mm) | 12” (305mm) |
BTI-199 | | 3” (76mm) | 3” (76mm) | 3” (76mm) | 12” (305mm) | |
BTI-200/A | | 2” (51mm) | 2” (51mm) | 2” (51mm) | 12” (305mm) | |
BTI-250/A | | 2” (51mm) | 2” (51mm) | 2” (51mm) | 12” (305mm) |
BTI-275/A | | 2” (51mm) | 2” (51mm) | 2” (51mm) | 12” (305mm) | |
BTI-310/A | | 3” (76mm) | 3” (76mm) | 3” (76mm) | 12” (305mm) | |
BTI-366/A | | 3” (76mm) | 3” (76mm) | 3” (76mm) | 12” (305mm) | |
BTI-400/A | | 3” (76mm) | 3” (76mm) | 3” (76mm) | 12” (305mm) |
TABLE 4
CLEARANCESTONONCOMBUSTIONCONSTRUCTION
| MODEL | ”A” | ”B” | ”C” | ”D” |
| | RIGHTSIDE | LEFTSIDE | BACK | CEILING |
| BTI-120 | 0 | 0 | 0 | 12” (305mm) |
| BTI-154 | 0 | 0 | 0 | 12” (305mm) |
| BTI-180 | 3” (76mm) | 3” (76mm) | 3” (76mm) | 12” (305mm) |
| BTI-199 | 3” (76mm) | 3” (76mm) | 3” (76mm) | 12” (305mm) |
| BTI-200/A | 0 | 0 | 0 | 12” (305mm) |
| BTI-250/A | 0 | 0 | 0 | 12” (305mm) |
| BTI-275/A | 0 | 0 | 0 | 12” (305mm) |
| BTI-310/A | 0 | 0 | 0 | 12” (305mm) |
| BTI-366/A | 0 | 0 | 0 | 12” (305mm) |
| BTI-400/A | 3” (76mm) | 3” (76mm) | 3” (76mm) | 12” (305mm) |
TABLE 5
HARD WATER
Where hard water conditions exist, water softening or the threshold type of water treatment is recommended. This will protect the dishwashers, coffee urns, water heaters, water piping and other equipment.
See MAINTENANCE section for details of tank cleanout procedure.
AIR REQUIREMENTS
REFER TO THE LATEST EDITION OF THE "NATIONAL FUEL GAS CODE" ANSI Z223.1/NFPA 54.
KEEP APPLIANCE AREA CLEAR AND FREE OF COMBUSTIBLE MATERIALS, GASOLINE AND OTHER FLAMMABLES, VAPORS AND LIQUIDS.
DO NOT OBSTRUCT THE FLOW OF COMBUSTION OR VENTILATING AIR.
WARNING
FOR SAFE OPERATION PROVIDE ADEQUATE AIR FOR COMBUSTION AND VENTILATION. AN INSUFFICIENT SUPPLY OF AIR WILL CAUSE RECIRCULATION OF COMBUSTION PRODUCTS RESULTING IN AIR CONTAMINATION THAT MAY BE HAZARDOUS TO LIFE. SUCH A CONDITION OFTEN WILL RESULT IN AYELLOW, LUMINOUS BURNER FLAME, CAUSING CARBONING OR SOOTING OF THE COMBUSTION CHAMBER, BURNERS AND FLUE TUBES AND CREATES A RISK OF ASPHYXIATION.
Where an exhaust fan is supplied in the same room with a heater, sufficient openings for air must be provided in the walls.
UNDERSIZED OPENINGS WILL CAUSE AIR TO BE DRAWN INTO THE ROOM THROUGH THE CHIMNEY, CAUSING POOR COMBUSTION. SOOTING MAY RESULT IN SERIOUS DAMAGE
TO THE HEATER AND RISK OF FIRE OR EXPLOSION.
UNCONFINEDSPACE
In buildings of conventional frame, brick, or stone construction, unconfined spaces may provide adequate air for combustion, ventilation and draft hood dilution.
If the unconfined space is within a building of tight construction (buildings using the following construction: weather stripping, heavy insulation, caulking, vapor barrier, etc.), air for combustion, ventilation and draft hood dilution must be obtained from outdoors. The installation instructions for confined spaces in tightly constructed buildings must be followed to ensure adequate air supply.
CONFINEDSPACE
When drawing combustion and dilution air from inside a conventionally constructed building to a confined space, such a space shall be provided with two permanent openings, ONE IN OR WITHIN 12 INCHES (30.5cm) OF THE ENCLOSURE TOP
