Emerson SZO22, SZV22 manual Platform Symptoms Diagnosis, Platform troubleshooting guidelines

Models: SZO22 SZV22

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Single-Compressor Module

Maintenance

5.2Platform Symptoms Diagnosis

Use the following guidelines to troubleshoot operating problems.

Table 6

Platform troubleshooting guidelines

Problem

 

Recommended Actions

 

 

• Low inlet pressure

 

 

• Insufficient gas supply

Low Gas

 

• High temperature

Flow

 

• Bypass valve open

 

 

• Low Compressor speed

 

 

• Restricted inlet screen

 

 

• Saturated or dirty secondstage oil separator

High Oil

 

• High oil level

 

• Restricted scavenge orifice

Carryover

 

 

• Insufficient back pressure

 

 

 

 

• Oil dilution

 

 

• Determine drive status.

Compressors

• Is inhibit circuit closed?

Won’t Run

 

• Is run signal present?

 

 

• Does the VFD indicate a fault code?

Incorrect

 

• Low inlet pressure

 

• High discharge pressure

Compressor

 

• High temperature, fan, low oil, oil cooler

Speed

 

 

 

• Problem with speed control sensor and related components

 

 

• Low oil level

High

 

• Restricted oil filter

 

• Blocked oil cooler air flow

Temperature

• Oil cooler fan not operating

 

 

 

 

• Operation conditions outside of Compressor Module specifications

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2008SSD-34 (5/11)

Page 29
Image 29
Emerson SZO22, SZV22 manual Platform Symptoms Diagnosis, Platform troubleshooting guidelines