14
P40-R I&O Manual
IM120801
RD: AUG 2013
RL: 1D
IMPORTANT
: Single or multiple heater placement must be such that continuous
operation of heaters will not cause combustible material or materials in storage to
reach a temperature in excess of ambient (room) temperature plus 117F° (65C°).
It is the installer’s responsibility to ensure that building materials with a low
heat tolerance which may degrade at lower temperatures than the clearance
temperature are protected to prevent degradation.
Examples of low heat tolerance materials include vinyl siding, fabrics,
some plastics, filmy materials, etc.
Refer to “Clearance to Combustibles” information on pages 7 to 10, and Figure 1 and
Table 1, and listed on the heater rating plate (on burner housing).
MODEL
GUIDELINE *
MOUNTING
HEIGHT
ft
(m)
MAXIMUM
BETWEEN
HEATERS
ft
(m)
DISTANCE – HEATER LONG AXIS
PARALLEL TO WALL
HORIZONTAL
ft
(m)
ANGLE MOUNTED
P40-R
8 – 18
(2.4 - 5.5)
20
(6)
5 – 12
(5 - 8)
MINIMUM: COMBUSTIBLE
CLEARANCE BEHIND
(refer to Table 1)
9. SUGGESTED GUIDELINES FOR HEATER PLACEMENT*
- SPACE HEATING APPLICATIONS
*
SUGGESTED GUIDELINE MOUNTING HEIGHTS are typical to provide optimum comfort in
general space heating applications. Variance from these typical heights can occur in some
applications:
Higher mounting height due to structure or application requirements
For ‘area’ or ‘spot’ heat, or in areas with greater infiltration rates (near overhead doors,
etc) where more intense heat is needed to provide better comfort then lower mounting
heights are recommended (minimum 8 ft [2.4 m] mounting height)
It is recommended that Protective Guard JS-0502-UR-GK be installed on any heater
mounted with less than 8 feet from floor to bottom of heater (See Accessories - Page 41)
