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254599-YTG-C-0807
Unitary Products Group 21
FIGURE 11 - ROOF CURB DIMENSIONS
GUIDE SPECIFICATIONS
GENERAL
Units shall be manufactured by York International Unitary
Products Group in an ISO 9001 certified facility.
York's Sunline Plus
TM
units are convertible single package
units. Although the units are primarily designed for curb mount-
ing on a roof, they can also be slab-mounted at ground level or
set on steel beams above a finished roof. Cooling only, cooling
with gas heat and cooling with electric heat models are available
with a wide variety of factory-mounted options and field-installed
accessories to make them suitable for almost every application.
All units are self-contained and assembled on full perimeter
base rails with holes in the four corners for overhead rigging.
Every unit is completely piped, wired, charged and tested at the
factory to simplify the field installation and to provide years of
dependable operation. All models (including those with an econ-
omizer) are suitable for either bottom or horizontal duct connec-
tions. Models with power exhaust are suitable for bottom duct
connections only. For bottom duct, remove the sheet metal pan-
els from the supply and return air openings through the base of
the unit. For horizontal duct, remove the supply and return air
panels on the rear of the unit.
All compressors include crankcase heaters and all compres-
sors have internal pressure relief. Every refrigerant circuit
includes a liquid line filter-drier, a discharge line high pres-
sure switch and a suction line with a freezestat and low pres-
sure/loss of charge switch.The unit control circuit includes a
75 VA transformer, a 24-volt circuit breaker and a relay board
with a compressor lockout circuit, a terminal strip for thermo-
stat wiring, plus an additional set of pin connectors to simplify
the interface of additional field controls. All units have long
lasting powder paint cabinets with 1000 hour salt spray test
approval under ASTMB117 procedures. All models are CSA
listed. All models include a 1-year limited warranty on the
complete unit. Compressors and electric heater elements
carry a 5-year warranty. Aluminized steel and Stainless steel
tubular heat exchangers carry a 10-year warranty.
DESCRIPTION
Units shall be factory-assembled, single packaged, Electric
Cooling/Gas Heat, Electric Cooling/Optional Electric Heat
and designed for outdoor mounted installation.
The 6 ton unit is rated at 10.4 EER. They shall have built-in
field convertible duct connections for down discharge supply/
return or horizontal discharge supply/return, and be available
with factory installed options or field installed accessories. The
units shall be factory wired, piped, charged with R-22 refriger-
ant and factory tested prior to shipment. All unit wiring shall be
both numbered and color coded. All units the cooling perfor-
mance shall be rated in accordance with DOE and ARI test
procedures. Units shall be CSA listed, classified to ANSI
Z21.47, UL 1995/CSA No. 236 standards.
UNIT CABINET
Unit cabinet shall be constructed of G90 galvanized steel,
with exterior surfaces coated with a non-chalking, powdered
paint finish, certified at 1000 hours salt spray test per
ASTMB117 standards. Indoor blower section shall be