York YPAL 060, YPAL 061, YPAL 050, YPAL 051 manual AIR Management, Controls, Indoor AIR Quality

AIR MANAGEMENT

•DWDI Airfoil fans – High efficiency fans are used to improve application flexibility, and ad- dress sound and application concerns.

•Building pressure control – Exhaust fans and barometric relief dampers are available to meet building pressure control requirements. Select the most appropriate option for a given appli- cation.

•Low sound options – Allow for application of the eco2 unit in sound-sensitive applications such as theaters and downtown areas. Contact JOHNSON CONTROLS for more details on site-specific requirements.

•Variable Frequency Drives – When a VAV unit is ordered, the eco2 comes standard with variable frequency drives (VFD’s). TheVFD can optimize a systems performance by modulating the supply fan motor speed to reduce energy consumption by as much as 40% while maximizing occupant comfort.

•Fan Spring Isolation – Two-inch spring isolation is used to prevent vibration transmission from the rooftop unit’s supply fan to the building.

CONTROLS

•Rooftop Controller - The unit is designed to use the Simplicity Elite control. This control has been used with the 25 to 40 ton Millennium product for many years. The control is designed to operate with conventional room control input. This allows the same control to be used on instal- lations requiring 25 to 60 tons of cooling.

The board is equipped with four program but- tons and two character displays for use by the technician. They allow for access to the most important board functions, current operating data, and current alarms as well as the last five alarms in the history memory buffer. The buttons and displays are also used to program the control with the correct configuration and set points.

FORM 100.50-NOM6 (1207)

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The control can also be connected to a computer for greater access to programming and operating information.

•Communication -The controller is designed to communicate using Modbus RTU protocol. Through the addition of a ModLINC translator, the unit can also communicate using BACnet MS/TP protocol.

INDOOR AIR QUALITY

•Double Sloped Stainless Steel Drain Pan – The eco2’s standard Stainless Steel drain pan meets ASHRAE 62 requirements for condensate drain- age to improve indoor air quality. Solid wall liners encase insulation and prevent moisture damage. Additional benefits include easy cleanability and isolates insulation from conditioned airstream.

•Double Wall Construction – Is the standard construction of the eco2 and incorporates powder coated pre-fabricated outer panels and corner post for maximum exterior surface protection.

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