Detroit Radiant Products Company QTS Series - Manual (Page 8)

WARNING
!
Placement of explosive objects, flammable objects, liquids and vapors close to the heater
may result in explosion, fire, property damage, serious injury or death. Do not store or
use explosive objects, liquids and vapors in the vicinity the heater.
QTS Series
8
Combustible/Degrading Items:
• Wood
• Paper
• Fabric
• Chemicals
• Paint
2.0 Safety • Clearance to Combustibles
Clearance to Combustibles
• Parked vehicles
• Gasoline
• Storage racks
• Plastics
• Flexible gas lines
When installing the radiant heating system, the minimum clearances to combustibles for your series
radiant tube heater and system configuration
must be maintained. These distances are shown in Chart
2.1 on page 9 and on the burner control box. If you are unsure of the potential hazards, consult your local
fire marshall, fire insurance carrier or other qualified authorities on the installation of gas fired radiant tube
heaters for approval of the proposed installation.
In locations used for the storage of combustible materials, signs must be posted to specify the maximum
permissible stacking height to maintain the required clearances from the heater to the combustibles.
Signs must either be posted adjacent to the heater’s thermostat or in a conspicuous location.
The stated clearance to combustibles represents a surface temperature of 90ºF (32ºC) above room
temperature. Building materials with a low heat tolerance (such as plastics, vinyl siding, canvas,
tri-ply, etc.) may be subject to degradation at lower temperatures. It is the installer’s responsibility to
assure that adjacent materials are protected from degradation.
A critical safety factor to consider before installation is the clearances to combustibles. Clearance to
combustibles is defined as the minimum distance you must have between the tube surface, or reflector,
and the combustible item. Considerations must also be made for moving objects around the radiant tube
heater. The following is a partial list of items from which to maintain clearances:
• Vehicle parking areas
• Vehicles with lifts or cranes
• Storage areas with stacked materials
• Lights
• Sprinkler heads
• Overhead doors and tracks
• Dirty or contaminated environments • Gas and electrical lines
• Combustible and explosive materials
• Chemical storage areas
• Areas of high chemical fume concentrations
• Provisions for accessibility to the heater
• Adequate clearances around air openings
• Combustion and ventilating air supply
Common Hazards:
For maximum safety the building must be evaluated for hazards before installing the heating system.
Examples include, but are not limited to:
Moving Objects:
• Overhead doors
• Vehicles & vehicle lifts
• Cranes
• Hoists
• Trailers