York HFC-410A Warranties, EQUIPMENT Product Specification, Unit Construction, Economizer Section

FORM 100.50-EG5 (108)

Warranties

Equipment shall include the manufacturer’s warranty not less than eighteen months from the date of shipment.

Extended parts warranty [optional] shall be included for an additional one [five] years

Extended parts and labor warranty [optional] shall be included for an additional one [five] years

EQUIPMENT

Product Specification

Summary: Completely factory assembled unitized con- struction packaged rooftop air conditioning unit including a factory-mounted and wired unit controller and sensors, single-point power connection 460V [208V/230V/ 575V] three-phase, 60Hz power supply, outdoor air handling section with return and supply openings, discharge ple- num, direct-expansion refrigerant condensing section.

Factory Test: The refrigerant circuit shall be pressure- tested, evacuated and fully charged with refrigerant and oil. The completed refrigerant circuit shall undergo a factory helium leak test and undergo an automated op- erational run test and quality inspection prior to shipment. The unit controller shall be configured and run tested at the factory to minimize field setup time. Gas fired units are run tested. If the unit is not configured and tested, then the manufacturer shall provide field start up and testing to ensure that the controller is functioning properly.

Unit Construction:

Base Rail: The unit shall include an integral design base rail with lifting points clearly marked and visible on the base rail, and five (5) 1-1/4” FPT connections for con- densate drainage. The unit base shall be designed with a recessed curb mounting location. The recessed curb mounting surface shall provide a continuous surface for field application of curb gasketing to create a weather tight seal between the curb and unit.

Casing: Casing shall be complete post and panel construction with exterior skin. All panels, doors, walls, uprights, floor panels and roofing shall be one-inch thick; 1-1/2 pound density insulation. Units are specifically designed for outdoor installation.

Roof: The unit roof shall be bowed with the peak in the middle of the unit and sloped to both sides of the unit for drainage. A drip lip shall run the length of the unit to prevent water drainage down the side of the unit. Roof and sidewall seams shall be continuously caulked and covered with formed galvanized seam caps. All panel fasteners shall be secured through standing seams to prevent fastener penetrations that are exposed to the air stream.

Paint: Exterior painted surfaces are designed to with- stand a minimum of 1,000 salt spray hours when tested in accordance with ASTM B-117.

Markings and Diagrams: All necessary tags and decals to aid in the service and/or indicating caution areas shall be provided. Electrical wiring diagrams shall be attached to the control panel access door.

Documentation: Installation and operation mainte- nance manuals shall be supplied with each unit.

Access Doors: Double wall access doors shall be provided in the fan, coil, filter and inlet sections of the unit. Doors shall be double-wall construction with a solid liner and a minimum thickness of 1- inch. Doors shall be attached to the unit with piano-type stainless steel hinges. Latches shall be positive-action, creating an airtight seal between the door and unit. Panels and doors shall be completely gasketed with a closed-cell, neoprene gasket. Door tiebacks shall be provided for all doors to secure doors while servicing.

Economizer Section:

[SELECT NONE, OR ONE OF THE FOLLOWING]

1.No Outside-Air: the unit has no provisions for outside ventilation air.

1.Manual Outside-Air Damper: A manually adjustable outside-air damper capable of admitting 0-25% outside-air shall be provided.

1.Two-Position,Outside-Air Damper: A two-position, outside-air damper capable of admitting 0-25% outside-air shall be provided. The minimum position shall be manually adjustable from 0-25%. Control shall be based on the occupied mode of the unit. For occupied mode, the damper shall be open to the minimum position and for unoccupied, it shall be closed.

1.Modulating Economizer: The economizer segment shall be designed to use outside air for cooling and ventilation and provide a means of exhausting air from the air-handling unit. The segment shall consist of parallel-acting, low-leak dampers. The return-air, outside-air and exhaust-air dampers shall be sized for 100% of nominal unit airflow. The exhaust-air damper assembly shall have a factory-assembled rain hood. The rain hood shall have a drip-lip the full width of the hood to channel moisture away from the air being drawn into the unit.

[SELECT ONE OF THE FOLLOWING TYPES OF BUILDING PRESSURE CONTROL]

2.No Building Exhaust/Relief: The unit has no provi- sions to exhaust building return air.

JOHNSON CONTROLS 39