Emerson VSR Manuel D’Utilisation

87

Maintenance

NOTE: See Motor Manual for proper lubrication procedures and service intervals. 

Refrigeration Maintenance and Inspection Schedule

The following service intervals are based on the usage of Vilter Manufacturing Corporation Premium Grade refrig-
eration oil in VSS, VSM and VSR Single Screw Compressor units.

 

 

 
OIL CIRCUIT 
 

Oil 

Change 

(1) 

 R  R  R  R  R  R  R 

 

Oil 

Analysis 

(2) 

  S S S S S S S S S S S S S 

 

Oil 

Filters 

(3) 

R R R R R R R R R R R R R R 

 

Oil 

Strainer 

I I I I I I I I I I I I I I 

PACKAGE 
 

Coalescing 

Elements     R   R   R   R 

 

Suction 

Screen 

I I I I I I I I I I I I I I 

 

Liquid 

Line 

Strainers  I I I I I I I I I I I I I I 

 Coupling 

Alignment 

 

and 

Integrity 

I I I I I I I I I I I I I I 

CONTROL  
CALIBRATION  Transducers 

I I I I I I I I I I I I I I 

 

RTD’s 

I I I I I I I I I I I I I I 

COMPRESSOR 
 

Inspect 

Compressor  I  I  I  I  I  I  I 

 

Bearings 

 

 

 

 

 

 

 

 

 

 

 

 

 

I 

 

Key I  Inspect. 

   R  Replace. 
   S  Sample. 

Notes: 

(1)  The oil should be changed at these intervals, unless oil analysis results exceed the allowable limits.   

 

 

The frequency of changes will depend on the system cleanliness.

 
 

(2)  Oil analysis should be done at these intervals as a minimum; the frequency of analysis will depend on  

  

system 

cleanliness.

 
 

(3)  The oil filter(s) on a minimum must be changed at these intervals or annually if not run continuously.   

 

 

However, the oil filter(s) must be changed if the oil filter differential exceeds 12 psi or oil analysis    

  

requires 

it. 

200

5,000

10,000

20,000

30,000

40,000

50,000

60,000

70,000

80,000

90,000

100,000

110,000

120,000

 

Inspection

 

 

 

        Or 

Group 

  Maintenance

 

 

 

       Item