Emerson VSR, VSM, VSS service manual Installation, Remove all rust from equipment, clean and paint

Installation

15.Remove all rust from equipment, clean and paint.

16.Flush out sediment, etc. from water circuits.

17.Clean all oil strainers.

18.Clean suction strainer – compressors.

19.Check motors and fans for shaft wear and end play.

20.Check operation and general condition of microprocessor and other electrical con- trols.

21.Clean all water strainers.

22.Check drains to make sure water will flow away from equipment.

23.Drain and clean entire oil system at receiver drain. Recharge with new clean moisture free oil. For proper procedure for changing micronic oil filter and charging oil into the system, see Start-Up and Operation section.

24.Check compressor coupling. For integrity and alignment.

25.Check oil pump for wear.

26.Check the calibration of the microprocessor pressure transducers and RTD’s for accu- racy.

27.Check mounting bolts for compressor and motor.

F.System Leaks

There are any number of reasons why leaks develop in a refrigeration system (i.e. such as drying out of valve packing, yielding of gaskets, improper replacement of valve caps and loosen- ing of joints due to vibration). For these reasons, the need for periodic leak testing cannot be over- emphasized. Similarly, when any service opera- tions are performed on the system, care should be exercised to insure all opened flanges are

tightened, all plugs that were removed are re- placed with a suitable thread filling compound, all packing glands on valve stems are tightened, and all valve caps are replaced. When operation is restored, all joints opened or any valves moved during the servicing should be checked for leaks.

G.Year Round Operation On a continual basis:

1.Guard against liquid slugging of compres- sor.

2.Maintain unit in clean condition and paint as necessary.

3.Grease valve stems and threads for the valve caps.

When refrigeration equipment is operated 24 hours a day year round, it is highly recommend- ed that a yearly check of all internal parts be made (see Service Section). While the highest material standards are maintained throughout all Vilter compressors, continuous operation and any presence of dirt may prove injurious to the machine. To forestall needless shutdowns or prevent possible machine breakdowns, the side covers should be removed yearly, and a visual inspection be made of the internal parts. In this way, a small amount of time spent check- ing machine conditions once a year may prevent extensive shutdowns later with subsequent product loss and expensive repairs.

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