York Centrifugal Chiller Log Sheet Update Or Provide
York Centrifugal Chiller Log Sheet Full Load Capacity

Instructions for specic operations are provided on many of the screens.

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During installation, operation, maintenance or service, individuals may be exposed to certain components or conditions including, but not limited to: refrigerants, oils, materials under pressure, rotating components and both high and low voltage.

Each of these items has the potential, if misused or handled improperly, to cause bodily injury or death.

It is the obligation and responsibility of operatingservice personnel to identify and recognize these inherent hazards, protect themselves and proceed safely in completing their tasks.

Failure to comply with any of these requirements could result in serious damage to the equipment and the property in.

It is essential that, prior to performing any task on this equipment, this individual shall have read and understood this document and any referenced materials.

This individual shall also be familiar with and comply with all applicable governmental standards and regulations pertaining to the task in question.

Usually an instruction will be given, together with a brief explanation.

Devices such as relays, switches, transducers and controls may NOT be installed inside the micro panel.

NO external wiring is allowed to be run through the micro panel.

All wiring must be in accordance with YORKs published specications and must be performed ONLY by qualied YORK personnel.

YORK will not be responsible for damagesproblems resulting from improper connections to the controls or application of improper control signals.

Failure to follow this will void the manufacturers warranty and cause serious damage to property or injury to persons.

York Centrifugal Chiller Log Sheet Update Or Provide

While YORK makes no commitment to update or provide current information automatically to the manual owner, that information, if applicable, can be obtained by contacting the nearest YORK Applied Systems Service ofce.

If there is any question in the mind of operatingservice personnel as to the applicability of these documents, then, prior to working on the equipment, they should verify with the owner whether the equipment has been modied and if current literature is available.

York Centrifugal Chiller Log Sheet Full Load Capacity

However, most systems will be called upon to deliver full load capacity for only a relatively small part of the time the unit is in operation.

Prerotation vanes (PRV), located at the entrance to the compressor impeller, compensate for variation in load (See Fig.

Detail A).

The automatic adjustment of the vane position in effect provides the performance of many different compressors to match various load conditions from full load with vanes wide open to minimum load with vanes completely closed.

It controls the leaving chilled liquid temperature via pre-rotation vane controls and has the ability to limit motor current via control of the pre-rotation vanes.

It is compatible with YORK Solid State Starter (optional), Variable Speed Drive (optional) and Electro-Mechanical starter applications.

The graphic display allows the presentation of several operating parameters at once.

In addition, the operator may view a graphical representation of the historical operation of the chiller as well as the present operation.

For the novice user, the locations of various chiller parameters are clearly and intuitively marked.