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PAQUETES > YSC |
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Units shall be
convertible airflow. Operating range shall be between 115°F and
0°F cooling as standard from the factory for units with
microprocessor controls. Operating range for units with
electromechanical controls shall be between 115°F and 40°F.
Cooling performance shall be rated in accordance with DOE and/or
ARI testing procedures. All units shall be factory
assembled, internally wired, fully charged with R-22, and
100 percent runtested before leaving the factory. Wiring
internal to the unit shall be colored and numbered for
simplified identification. |
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Units (except
380/60/3) shall be UL listed and labeled, classified in
accordance to ANSIZ21.47 for gas fired central furnaces
and UL 1995/CAN/CSA No. 236-M90 for central cooling air
conditioners. Canadian units shall be CSA certified.
Casing
Unit casing shall be constructed of zinc coated, heavy gauge,
galvanized steel.
Exterior surfaces shall be cleaned, phosphatized, and finished
with a weather-resistant baked enamel finish. Unit’s surface
shall be tested 1000 hours in a salt spray test in compliance
with ASTM B117. Cabinet construction shall allow for all
maintenance on one side of the unit. Service panels shall have
lifting handles and be removed and reinstalled by removing only
a single fastener while providing a water and air tight seal.
All exposed vertical panels and top covers in the indoor air
section shall be insulated with a cleanable foil faced,
fireretardent permanent, odorless glass fiber material. The base
of the unit shall be insulated with 1/2 inch, 1 pound density
foil-faced, closed-cell material. All insulation edges shall be
either captured or sealed. The unit’s base pan shall have no
penetrations within the perimeter of the curb other than the
raised 11/8 inch high downflow supply/return openings to provide
an added water integrity precaution, if the condensate drain
backs up. The base of the unit shall have provisions for
forklift and crane lifting, with forklift capabilities on three
sides of the unit. |
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FICHA TÉCNICA
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