minimum 16 gage for radiant tubing between burners and vacuum pump
or vent.]
[b.
Aluminum: ASTM B 209M ASTM B 209, manufacturer's standard
thickness.]
[c.
Stainless Steel:
ASTM A 167, nominal thickness of not less than
20 gage.]
[d.
[Ceramic-Coated] [Enamel-Coated] Steel: ASTM A 569/A 569M hot
rolled or ASTM A 109M ASTM A 109 cold rolled, low-carbon steel.
Provide coating able to withstand infrared heater operating
temperatures.]
2.2.2
Unvented Gas Infrared Heater
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NOTE: Use only if adequate ventilation ensured for
the project location.
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ANSI Z83.6 and AGA approved.
2.2.2.1
Heating Element
Perforated ceramic capable of withstanding thermal shock in [3] [_____]
minutes from 1093 to 0 degrees C 2000 to 32 degrees F without fatigue and
of minimum 871 degrees C 1600 degrees F operating temperature. When
re-radiating screens are used to obtain operating temperature, provide
[stainless-steel] [or] [chromized-steel] matching screen.
2.2.2.2
Reflector
[Polished [aluminum] [stainless steel]] [or] [approved high infrared
reflector materials]. Provide reflector supports of manufacturer's
standard.
2.2.2.3
Controls
Provide either an intermittent pilot ignition system or a solid-state
direct ignition system. Provide automatic gas safety valve capable of
withstanding a 10 percent voltage fluctuation.
2.2.2.4
Ventilation
Section 15720N AIR HANDLING UNITS.
2.2.3
Vented Gas Infrared Heater
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NOTE: For spot heating, use single-burner power
vented heater; for small area heating, uses
single-burner vacuum vented heater; and for large
area or entire building heating, use multiple-burner
vacuum vented heater. Do not use vented gas
infrared heaters in projects in the
SOUTHNAVFACENGCOM area.
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ANSI Z83.6 with AGA label, [single-burner power vented] [single-burner
SECTION 15760N
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