
Form 43471000
-4- Sept 2011
4.0) MINIMUM CLEARANCES TO COMBUSTIBLES
Failure to do so may result in death, serious injury or
property damage.
Combustible material must be located outside the
clearance dimensions listed.
Minim m clearances to comb stibles shall be meas red from the o ter s rfaces as shown in the following
diagram. For red ced clearances below the heater, se the Deflector Kit (Part No. 43504010), described in
Section 6.1), and maintain the minim m clearances specified in the notes below. Follow the instr ctions
packaged with the kit for installation.
End End
Ceiling
Below
Front Rear
45° Angle (Maximum)
* Ceiling
Below
Side Side
Horizontal
MINIMUM CLEARANCES TO COMBUSTIBLES
MINIMUM CLEARANCES TO COMBUSTIBLESMINIMUM CLEARANCES TO COMBUSTIBLES
MINIMUM CLEARANCES TO COMBUSTIBLES
Model No.
Model No.Model No.
Model No.
Mo nted
Mo ntedMo nted
Mo nted
Horizontally
HorizontallyHorizontally
Horizontally
Angle Mo nted at 45º
Angle Mo nted at 45ºAngle Mo nted at 45º
Angle Mo nted at 45º
Sides
SidesSides
Sides
Ceiling
CeilingCeiling
Ceiling1
11
1
Below
BelowBelow
Below2
22
2
Ends
EndsEnds
Ends
45º Front
45º Front45º Front
45º Front
45º Rear
45º Rear45º Rear
45º Rear
1 The clearance is 12” when installed in an UNVENTED
UNVENTEDUNVENTED
UNVENTED config ration in ind strial and commercial installations.
2 IN CANADA
IN CANADAIN CANADA
IN CANADA, clearances below the heater are:
CB20/30: 36” (27” with deflector);
CB40/50: 48” (36” with deflector)
* The clearance is 33” with deflector.
** The clearance is 42” with deflector / 30” side clearance with deflector.
▲WARNING:
▲WARNING:▲WARNING:
▲WARNING:
Certain materials or objects, when stored nder the heater, will be s bjected to radiant heat and
Certain materials or objects, when stored nder the heater, will be s bjected to radiant heat and Certain materials or objects, when stored nder the heater, will be s bjected to radiant heat and
Certain materials or objects, when stored nder the heater, will be s bjected to radiant heat and
co ld be serio sly damaged.
co ld be serio sly damaged.co ld be serio sly damaged.
co ld be serio sly damaged.
Observe the Minim m Clearances to Comb stibles listed in the man al and on the
Observe the Minim m Clearances to Comb stibles listed in the man al and on the Observe the Minim m Clearances to Comb stibles listed in the man al and on the
Observe the Minim m Clearances to Comb stibles listed in the man al and on the
heater at all times.
heater at all times.heater at all times.
heater at all times.
NOTE:
NOTE:NOTE:
NOTE:
1.
1. 1.
1. The cleara
The clearaThe cleara
The clearances specified above m st be maintained to comb stibles and other materials that may be
nces specified above m st be maintained to comb stibles and other materials that may be nces specified above m st be maintained to comb stibles and other materials that may be
nces specified above m st be maintained to comb stibles and other materials that may be
damaged by temperat res 90ºF above ambient temperat re.
damaged by temperat res 90ºF above ambient temperat re.damaged by temperat res 90ºF above ambient temperat re.
damaged by temperat res 90ºF above ambient temperat re.
Clearances to comb stibles are posted on the
Clearances to comb stibles are posted on the Clearances to comb stibles are posted on the
Clearances to comb stibles are posted on the
control box.
control box.control box.
control box.
In areas sed for storage of comb stible materials whe
In areas sed for storage of comb stible materials wheIn areas sed for storage of comb stible materials whe
In areas sed for storage of comb stible materials where they may be stacked below the heater,
re they may be stacked below the heater, re they may be stacked below the heater,
re they may be stacked below the heater,
NFPA54 req ires that the installer m st post signs that will “specify the maxim m permissible stacking height
NFPA54 req ires that the installer m st post signs that will “specify the maxim m permissible stacking height NFPA54 req ires that the installer m st post signs that will “specify the maxim m permissible stacking height
NFPA54 req ires that the installer m st post signs that will “specify the maxim m permissible stacking height
to maintain the req ired clearances from the heater to comb stibles.”
to maintain the req ired clearances from the heater to comb stibles.”to maintain the req ired clearances from the heater to comb stibles.”
to maintain the req ired clearances from the heater to comb stibles.”
Space
SpaceSpace
Space-
--
-Ray recommends posting these
Ray recommends posting these Ray recommends posting these
Ray recommends posting these
signs adjacent to the heater thermostat or other s itable location that will provide enhanced visibility.
signs adjacent to the heater thermostat or other s itable location that will provide enhanced visibility.signs adjacent to the heater thermostat or other s itable location that will provide enhanced visibility.
signs adjacent to the heater thermostat or other s itable location that will provide enhanced visibility.
2. The stated clearance to comb stibles represents a s rface temperat re of 90
2. The stated clearance to comb stibles represents a s rface temperat re of 902. The stated clearance to comb stibles represents a s rface temperat re of 90
2. The stated clearance to comb stibles represents a s rface temperat re of 90
ºF
ºFºF
ºF
(32
(32(32
(32
ºC) above room
ºC) above room ºC) above room
ºC) above room
temperat re. B ilding materials with a low heat t
temperat re. B ilding materials with a low heat ttemperat re. B ilding materials with a low heat t
temperat re. B ilding materials with a low heat tolerance (s ch as plastics, vinyle siding, canvas, tri
olerance (s ch as plastics, vinyle siding, canvas, triolerance (s ch as plastics, vinyle siding, canvas, tri
olerance (s ch as plastics, vinyle siding, canvas, tri-
--
-ply, etc.)
ply, etc.) ply, etc.)
ply, etc.)
may be s bject to degradation at lower temperat res. It is the installer’s responsibility to ass re that adjacent
may be s bject to degradation at lower temperat res. It is the installer’s responsibility to ass re that adjacent may be s bject to degradation at lower temperat res. It is the installer’s responsibility to ass re that adjacent
may be s bject to degradation at lower temperat res. It is the installer’s responsibility to ass re that adjacent
materials are protected from degradation.
materials are protected from degradation.materials are protected from degradation.
materials are protected from degradation.