Series AA250
Page 8
LT252 Oct 2019
CLEARANCE TO COMBUSTIBLES
Minimum clearances to combustible materials shall be measured from outer surface of the heater as
shown in the following table.
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.
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.
The stated clearance to combustibles represents a surface temperature of 90°F (50°C) above room temperature.
Building materials with low heat tolerance
(i.e. plastics, vinyl siding, canvas, tri-ply, etc.)
may be subject to
degradation at lower temperatures.
It is the installer’s responsibility to ensure that adjacent materials are protected from deterioration.
Outlet
Below
Side/Front/Rear
Above
A
B
C
D
72” (1850mm)
12” (300mm)
12” (300mm)
12” (300mm)
Table 2: Minimum clearance to combustible materials
Figure 4 - Clearance to Combustible
A
B
C
D
Содержание AA250 Series
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