FIGURE 10 - 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 2000TM units are convertible single package heat pumps. Although the units are primarily designed for curb mounting on a roof, they can also be slab-mounted at ground level or set on steel beams above a finished roof. 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 installa- tion and to provide years of dependable operation. All models (including those with an economizer) are suitable for either bot- tom or horizontal duct connections. Models with power exhaust are suitable for bottom duct connections only. For bottom duct, remove the sheet metal panels 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 non-Scroll compressors include crankcase heaters and all compressors have internal pressure relief. Every refrigerant circuit includes a liquid line filter-drier, a discharge line high pressure switch and a suction line with a freezestat and low pressure/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
255027-YTG-B-0507
for thermostat 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 ele- ments carry a 5-year warranty.
DESCRIPTION
Units shall be factory-assembled, single packaged heat pumps designed for outdoor mounted installation.
The 3, 4 and 5 ton units shall have a minimum SEER rating of
13.0and a minimum HSPF rating of 7.70. The 6 ton units shall have a minimum EER rating of 10.2. 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 acces- sories. The units shall be factory wired, piped, charged with R-22 refrigerant and factory tested prior to shipment. All unit wiring shall be both numbered and color coded. All units the cooling performance 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 insu- lated with a minimum 1/2” thick insulation, coated on the air-
