Table of Contents
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Section 6 • Troubleshooting
Table 6-3. Troubleshooting Guide - General Problems & Solutions (3 of 3)
Problem
High Amp Draw
Vibration
Excessive Motor Backspin
6 – 8
•
Check calibration at full load.
•
Check CT ratio entered in Vission 20/20.
•
Check slide valve calibration, especially volume slide.
•
Check that unit is leveled and secured to mounting pad or floor.
•
Check supported pipes (i.e. suction and discharge pipe) and make
sure they are adequately supported.
•
Check for loose bolts and nuts.
•
Check condition of compressor and motor (i.e. alignments)
•
If there is more than normal motor backspin at shutdown, check suc-
tion check valve for proper operation.
VSS/VSM/VSH/VSSH • Installation, Operation and Maintenance Manual • Emerson • 35391SD
Solution
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Table of Contents
Troubleshooting
