Field Piping and Mechanical Requirements

NOTE: If start-up service has been purchased, the following items should be completed before the start- up technician arrives. This will help save time and money.

1. The unit should be leveled and secured to the mounting pad or floor.

2. The suction and Discharge line must be piped and properly supported, independent of the unit

3.The Discharge Stop/Check Valve is shipped loose and must be installed in a vertical up flow direction or in a horizontal line with the valve stem pointing upward at a 45° angle. During off periods, refrigerant can condense in the line downstream of the Discharge Stop/Check Valve. It is recommended the Stop/ Check Valve be located to minimize the quantity of liquid that can accumulate downstream of the valve.

4.A Dual Safety Relief Valve is shipped loose for field installation. A connection is provided on the oil sepa rator for the relief valve. Refer to ASHRAE/ANSI Standard 15 (Safety Code for Refrigeration) for proper sizing and installation of Relief Valves and Vent Lines.

5. Piping For Oil Cooling

a) Liquid Injection

An adequate, or dedicated, liquid line is required for the Liquid Injection System. A high pressure liquid source must be piped to the stop valve at the inlet of the Thermostatic Expansion Valve. On booster units, an additional 3/8” line must be piped to the regulator from high stage discharge gas flow or the Thermostatic Expansion Valve.

b) V-PLUS

A high pressure liquid source must be run to the V-PLUS®inlet. Some subcooling is desirable. A high pressure float must be installed at the inlet of the pump and a 3/8” vent line must be returned to a suction trap. Refer to the V-PLUS manual for additional information.

c) External Oil Cooler

On thermosyphon oil coolers, the refrigerant lines must be connected to the front head of the oil cooler. On water cooled oil coolers, the water lines must be connected to the front head of the oil cooler. Installation of water regulating and solenoid valves are recommended.

6.The oil separator should be provided with oil until the oil level is between the (2) sight glasses. An oil charging connection is provided on the bottom of the oil separator.

7.The center member of the compressor coupling is shipped loose to help facilitate final field alignment and allow for motor rotation check. The motor alignment should be within 0.004” total indicator read ing in all directions.

a) Both the compressor and motor hubs should be checked for concentricity and perpendicularity.

b) The motor should be checked and shimmed for soft foot prior to attempting final alignment.

c)The center section of the coupling should be left out to allow the start-up technician to verify the final alignment and motor rotations.

8.The unit should be pressure tested, evacuated and a system load should be available at the time of start-up.

Order #_______________________________Compressor Serial #________________________

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Emerson VSS, VSR, VSM service manual Field Piping and Mechanical Requirements
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VSS, VSM, VSR specifications

Emerson VSM, VSR, and VSS are advanced technologies designed for process automation and control, often utilized in industrial applications. These systems are part of Emerson's broader portfolio of solutions aimed at enhancing operational efficiency, safety, and reliability.

The Emerson VSM, or Valve Signature Management, focuses on the digital management of valves within a system. One of its main features includes advanced diagnostics that monitor the health and performance of control valves. This technology allows for predictive maintenance, ensuring that valves operate at peak efficiency and reducing the risk of unexpected failures. The VSM utilizes a combination of smart sensors and actuators to gather data, enabling real-time analytics that can enhance decision-making and operational strategies.

On the other hand, VSR, or Valve Status Reporting, enhances visibility into the operational state of valves in real time. This system provides operators with critical updates and alerts related to valve conditions, significantly reducing response times to potential issues. The VSR technology integrates seamlessly with existing control systems, allowing for easier implementation and minimal disruption to ongoing operations. The reporting capabilities feature user-friendly dashboards that present complex data in a straightforward manner, empowering operators to make informed decisions quickly.

The Emerson VSS, or Valve Service Solutions, complements the VSM and VSR by focusing on the maintenance and support of valve systems. This offering includes comprehensive service packages that range from routine maintenance to advanced troubleshooting and repair. The VSS is designed to improve the lifespan of valves through proactive service, ensuring reliability and minimal downtime. Emerson’s trained technicians leverage predictive analytics derived from VSM and VSR data, allowing for timely intervention before issues escalate.

In summary, Emerson’s VSM, VSR, and VSS technologies work together to create a robust ecosystem for valve management in industrial settings. The combination of advanced diagnostics, real-time reporting, and comprehensive service solutions provides operators with a powerful toolkit aimed at optimizing performance and ensuring operational reliability. With these technologies, companies can embrace digital transformation, reduce operational risks, and improve overall process efficiency, leading to a safer and more productive environment. Each component plays a crucial role in empowering industries to meet the challenges of modern automation and maintain competitive advantages in their respective markets.
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