Installation

should show no bubbles, and there will be a liquid seal in the receiver. If these two condi- tions are not satisfied, additional refrigerant must be added.

5.When sufficient refrigerant has been charged into the system, close the charging and drum valves. Then remove the drum from the system.

6.During the charging period, observe the gauge carefully to insure no operating dif- ficulties. Watch head pressures closely to make sure the condensers are functioning properly.

Since it is usually necessary to use several drums when charging a system, follow the procedures in paragraphs E1 and E2 of the above description when attaching a new drum. After charging, the refrigerant drums should be kept nearby for several days as it is sometimes necessary to add more refrigerant as the system “settles down”.

VIII. MAINTENANCE SUGGESTIONS

Careful checking of a refrigeration system for leaks and proper operation of all components upon installation will start the system on its way to a long life of satisfactory service. To ensure the desired trouble-free operation, however, a systematic maintenance program is a prereq- uisite. The following maintenance schedule is suggested.

A.Daily

1.Check oil levels.

2.Check all pressure and temperature read- ings.

3.Check micronic oil filter inlet and outlet pres- sures for excessive pressure drop. Change filter when pressure drop exceeds 45 psi or every six months, whichever occurs first. For proper procedure for changing micronic oil filter and for charging oil into the system, see Operation Section.

4.Clean strainers each time filter cartridge if replaced.

5.Check compressor sound for abnormal noises.

6.Check shaft seals for excessive oil leakage. A small amount of oil leakage (approxi- mately 10 drops/min) is normal. This allows lubrication of the seal faces.

B.Weekly

(Items 1 thru 6 above plus 7 thru 9)

7.Check the refrigeration system for leaks with a suitable leak detector.

8.Check oil pressures and review micropro- cessor log and log sheets.

9.Check refrigerant levels in vessels.

C.Monthly

(Items 1 thru 8 above plus 9 thru 13)

10.Oil all motors and bearings. Follow manu- facturer’s instructions on lubrication.

11.Check calibration and operation of all controls, particularly safety controls.

12.Check oil cooler for any evidence of cor- rosion, scaling or other fouling.

13.Operate compressor capacity and volume ratio controls through their range both automatically and manually.

D.Trimonthly

(About 2000 operating hours)

Check movement of compressor rotor at drive coupling end to determine bearing float. (Re- fer to Service Section.)

E.Yearly

(Items 1 thru 13 and “D” above plus 14 thru 28)

14. Check entire system thoroughly for leaks.

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Emerson VSS, VSR, VSM service manual VIII. Maintenance Suggestions
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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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