Space Ray LTS Series Two Stage - Manual (Page 5)

Form #43155040
-4- May 2013
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.
Follow the instructions packaged with the kit for installation. Install the warnings card (ordered separately) and
complete the blank spaces using the clearances from combustibles table below. See Section 27 for a printed
copy of the warnings card.
Minimum clearances to combustibles shall be measured from the outer surfaces as shown in the following
diagram:
End End
Ceiling
Below
Front
Rear
45° Angle (Maximum)
* Ceiling
Below
Side Side
Horizontal
MINIMUM CLEARANCES TO COMBUSTIBLES MINIMUM CLEARANCES TO COMBUSTIBLES MINIMUM CLEARANCES TO COMBUSTIBLES MINIMUM CLEARANCES TO COMBUSTIBLES
Model No. Model No. Model No. Model No.
Mounted Horizontally Mounted Horizontally Mounted Horizontally Mounted Horizontally
Angle Mounted at Angle Mounted at Angle Mounted at Angle Mounted at
45º 45º 45º 45º
Sides Sides Sides Sides Ceiling* Ceiling* Ceiling* Ceiling* Below Below Below Below Ends Ends Ends Ends 45º Front 45º Front 45º Front 45º Front 45º Rear 45º Rear 45º Rear 45º Rear
LTS 40, 50 24” 6” 40” 15” 40” 12”
LTS 60, 75 24” 6” 60” 15” 52” 12”
LTS/LTU 80, 90 26” 6” 66” 15” 52” 12”
LTS/LTU 100 28” 6” 76” ** 15” 60” 12”
LTS/LTU 110, 120, 125, 130 32” 6” 82” ** 20” 66” 12”
LTS/LTU 140, 150 36” 6” 87” ** 20” 70” 12”
LTS/LTU 160, 175 42” 6” 93” ** 20” 77” 12”
LTS/LTU 180, 200 44” 6” 106” ** 20” 84” 12”
LTS/LTU 225, 250 56” 6” 112” ** 20” 90” 18”
* When used indirect vented, minimum clearance for CEILING must be: 12” for LTS 40-75 and 18” for LTS/LTU
80-250. If optional corner and U-bend reflectors are not used, the clearance must be 18”.
** Maximum clearance below reduces by 50% once you are 25 ft. downstream from the burner box.
▲WARNING: ▲WARNING: ▲WARNING: ▲WARNING: Certain materials or objects, when stored under the heater, will be subjected to radiant heat and Certain materials or objects, when stored under the heater, will be subjected to radiant heat and Certain materials or objects, when stored under the heater, will be subjected to radiant heat and Certain materials or objects, when stored under the heater, will be subjected to radiant heat and
could be seriously damaged. could be seriously damaged. could be seriously damaged. could be seriously damaged. Observe the Minimum Clearances to Combustibles listed in the manual and on the Observe the Minimum Clearances to Combustibles listed in the manual and on the Observe the Minimum Clearances to Combustibles listed in the manual and on the Observe the Minimum Clearances to Combustibles listed in the manual 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 clearan The clearan The clearan The clearances specified above must be maintained to combustibles and other materials that may be ces specified above must be maintained to combustibles and other materials that may be ces specified above must be maintained to combustibles and other materials that may be ces specified above must be maintained to combustibles and other materials that may be
damaged by temperatures 90ºF above ambient temperature. damaged by temperatures 90ºF above ambient temperature. damaged by temperatures 90ºF above ambient temperature. damaged by temperatures 90ºF above ambient temperature. Clearances to combustibles are posted on the Clearances to combustibles are posted on the Clearances to combustibles are posted on the Clearances to combustibles are posted on the
control box. control box. control box. control box. In areas used for storage of combustible materials wher In areas used for storage of combustible materials wher In areas used for storage of combustible materials wher In areas used for storage of combustible materials where they may be stacked below the heater, e they may be stacked below the heater, e they may be stacked below the heater, e they may be stacked below the heater,
NFPA54 requires that the installer must post signs that will “specify the maximum permissible stacking height NFPA54 requires that the installer must post signs that will “specify the maximum permissible stacking height NFPA54 requires that the installer must post signs that will “specify the maximum permissible stacking height NFPA54 requires that the installer must post signs that will “specify the maximum permissible stacking height
to maintain the required clearances from the heater to combustibles.”
to maintain the required clearances from the heater to combustibles.” to maintain the required clearances from the heater to combustibles.” to maintain the required clearances from the heater to combustibles.” Space Space Space Space----Ray recommends posting these Ray recommends posting these Ray recommends posting these Ray recommends posting these
s ss signs adjacent to the heater thermostat or other suitable location that will provide enhanced visibility. igns adjacent to the heater thermostat or other suitable location that will provide enhanced visibility. igns adjacent to the heater thermostat or other suitable location that will provide enhanced visibility. igns adjacent to the heater thermostat or other suitable location that will provide enhanced visibility.
2. The stated clearance to combustibles represents a surface temperature of 90 2. The stated clearance to combustibles represents a surface temperature of 90 2. The stated clearance to combustibles represents a surface temperature of 90 2. The stated clearance to combustibles represents a surface temperature of 90 ºF ºF ºF ºF (32 (32 (32 (32 ºC) above room ºC) above room ºC) above room ºC) above room
temperature. Building materials with a low heat to temperature. Building materials with a low heat to temperature. Building materials with a low heat to temperature. Building materials with a low heat tolerance (such as plastics, vinyle siding, canvas, tri lerance (such as plastics, vinyle siding, canvas, tri lerance (such as plastics, vinyle siding, canvas, tri lerance (such as plastics, vinyle siding, canvas, tri----ply, etc.) ply, etc.) ply, etc.) ply, etc.)
may be subject to degradation at lower temperatures. It is the installer’s responsibility to assure that adjacent may be subject to degradation at lower temperatures. It is the installer’s responsibility to assure that adjacent may be subject to degradation at lower temperatures. It is the installer’s responsibility to assure that adjacent may be subject to degradation at lower temperatures. It is the installer’s responsibility to assure that adjacent
materials are protected from degradation.
materials are protected from degradation. materials are protected from degradation. materials are protected from degradation.