4BN/L6,4SN/L5 Manual
IM100310
RD: DEC 2013
RL: 1B
4
Important Notice to Installer:
Service and repairs must be done by a trained gas service technician.
This Operation & Instruction manual is not to be removed from the site. This manual
MUST be given in its entirety to the consumer and retained for future reference. Ac-
quaint all users with Important Information throughout the manual.
IMPORTANT SAFETY NOTICES AND WARNINGS:
Warning
Improper Installation, adjustment, alteration, service or maintenance
can cause injury or property damage.
READ these installation, operating and maintenance instructions
thoroughly before operating or servicing this equipment.
It is imperative that control compartment, burners and circulating air
passageways be kept clean and unobstructed.
Warning
Clearance to Combustibles
Do not use, store or locate flammable or explosive objects, liquids or vapors in
proximity of the heater. Location of flammable or explosive objects, liquids or va-
pors close to the heater may cause fire or explosion and result in property dam-
age, injury or death.
The clearance to combustible material represents the minimum distance
that must be maintained between the outer heater surface and a nearby
surface. The stated clearance to combustibles represents a surface tem-
perature of 90F° (50C°) above room temperature.
It is the responsibility of the installer and user to ensure that building
materials with a low heat tolerance which may degrade at lower tem-
peratures are protected to prevent degradation. Examples of low heat
tolerance materials include vinyl siding, fabrics, canvas, plastics, filmy
materials, tri-ply, etc.
In addition to stored or stationary material, clearance consideration must also be given to
moveable objects such as furnishings and vehicles, and structural objects such as electrical
and gas lines, electrical fixtures, and sprinkler heads.
Heaters must be located an appropriate distance from sprinkler heads. This distance may be
greater than the certified clearance to combustibles. Check the temperature rating of the sprin-
