CERAMIC HEATERS:
RSCA Series
Gas-fired infrared space
heaters shall be furnished and installed in accordance with
governing codes and as shown per building drawing(s) as described
below:
Heaters shall be Space-Ray
RSCA series ceramic heaters, model number(s) RSCA____________,
rated at ____________ Btu/hr, as manufactured by Gas-Fired Products,
Inc., Charlotte, North Carolina. Heaters shall be equipped with
a 24-volt direct spark ignition or millivolt standing pilot
system (no external power supply is required for heaters equipped
with millivolt control system) with 100% gas shutoff.
Heaters shall be made of
aluminized steel body construction, and shall have a specially
designed internal plenum chamber. This chamber shall provide
optimum air/gas mixture for complete combustion. The carbon
monoxide emission level should be .001% based on the maximum
allowable emission level of 0.04%.
Heaters shall have a rigid
one-piece cast iron burner and an Incoloy 800 Reverberatory
Screen. The Reverberatory Screen shall increase the overall
emissivity of the radiating surface with a blackbody radiation
effect and act as a safety net in the unlikely event that the
ceramic tile assembly is broken by an outside force. The heater's
high temperature ceramic emitter surface shall be coated with
high emissivity iron-oxide coating which increases the emissivity
of the radiating surface by 13%. The heater shall be capable
of operating at up to 1800ºF and shall withstand thermal
shock when water quenched.
Heaters shall have 48.72%
radiant efficiency as determined by ANSI Z83.6, Section 2.9.
Radiant coefficient readings shall be obtained with a potassium
bromide filter to duplicate the results obtained at the Canadian
Standards Association Laboratories.
Heaters shall operate satisfactorily
in any position from horizontal to forty-five (45º) degrees
from horizontal. Heaters shall be design certified by the Canadian
Standards Association (CSA) to American National Standard Z83.19/CSA
2.35. The manufacturer shall provide a written limited warranty
of ten (10) years covering the emitter tiles, the cast iron
burner, and body construction, and a limited warranty of one
(1) year for all components utilized in the heater's control
assembly.