Roberts Gorden CTHN-100, CTHN-200 Combustibles at all times for safety, Inches Centimeters

SECTION 3: CRITICAL CONSIDERATIONS

SECTION 3: CRITICAL CONSIDERATIONS 3.1 Required Clearances to Combustibles

Clearances are the required distances that combustible objects must be away from the heater to prevent fire hazards. Combustible materials that may catch fire include common items such as wood, paper, rubber, fabric, etc. Maintain clearances to

combustibles at all times for safety.

Clearances for all heater models are located on the burner of the heater and on Page 3, Figure 1 through Page 6, Figure 10 in this manual. Check the clearances on each burner for the model heater being installed to make sure the product is suitable for your application and the clearances are maintained. Read and follow the safety guidelines below:

•Keep gasoline or other combustible materials including flammable objects, liquids, dust or vapors away from this heater or any other appliance.

•Maintain clearances from heat sensitive material, equipment and workstations.

•Maintain clearances from vehicles parked below the heater.

•Maintain clearances from swinging and overhead doors, overhead cranes, vehicle lifts, partitions, storage racks, hoists, building construction, etc.

•In locations used for the storage of combustible materials, signs must be posted to specify the maximum permissible stacking height to maintain

WARNING

Fire Hazard

Some objects will catch fire or explode when placed close to heater.

Keep all flammable objects, liquids and vapors the required clearances to combustibles away from heater.

Failure to follow these instructions can result in death, injury or property damage.

required clearances from the heater to the combustibles. Signs must be posted adjacent to the heater thermostat. In the absence of a thermostat, signs must be posted in a conspicuous location.

•Consult local Fire Marshal, Fire Insurance Carrier or other authorities for approval of proposed installation when there is a possibility of exposure to combustible airborne materials or vapors.

•Hang heater in accordance to the minimum suspension requirements on Page 10, Figure 12.

•If the radiant tubes must pass through the building structure, be sure that adequate sleeving and fire stop is installed to prevent scorching and/or fire hazard.

NOTE: 1. All dimensions are from the surfaces of all tubes, couplings and elbows.

2.Clearances B, C and D can be reduced by 50% after 25' (7.5 m) of tubing downstream from where the burner and burner tube connect.

FIGURE 1: STANDARD REFLECTOR

		(inches)				(centimeters)
Model	A	B	C	D	A	B	C	D
CTHN-40	5	20	41	20	13	51	104	51
CTHN-60	5	27	51	27	13	69	130	69
CTHN-80	5	30	58	30	13	76	147	76
CTHN-100	5	32	60	32	13	81	152	81
CTHN-125	5	35	65	35	13	89	165	89
CTHN-150	5	39	71	39	13	99	180	99
CTHN-175	8	44	74	44	20	112	188	112
CTHN-200	8	47	76	47	20	119	193	119

3