11
A
PRIL
/25/2013
Installation Requirements
Clearance to Combustibles
A general clearance of 18” (0.5 m) in every direction
is recommended for servicing only around
each Burner, also to ensure adequate air flow in and around the Heating System.
In addition to this it is very important to observe the minimum clearance to combustibles at
all times to avoid any possibility of property damage or personal injury.
Table below lists the minimum clearance to combustible materials for various installation
configurations. Additional clearance may be required for glass, painted surfaces and other
materials which maybe damaged by radiant or convective heat.
Combustible materials are considered to be wood, compressed paper, plant fibres, plastics,
Plexiglas or other materials capable of being ignited and burned. Such materials shall be
considered combustible even though flame-proofed, fire-retardant treated or plastered.
Adequate clearance to sprinkler heads must be maintained.
The stated clearance to combustibles represents a surface temperature of 90°F (50°C) above
room temperature. Building materials with low heat tolerance
(such as plastics, vinyl siding,
canvas, tri-ply, etc…)
maybe subject to degradation at lower temperatures.
It is the installer’s
responsibility to assure that adjacent materials are protected from degradation.
Note with an ambient temperature of 70
°
F the surface temperatures at the clearance
distances listed below could reach 160°F, Care should be taken with placement of plastic or
vinyl in the proximity of the heater as they tend to distort and soften at these temperatures.
NOTE
: Sprinkler head heat fuse link performance may alter with age.
S
ERIES
DECO-T
UBE
