Platform Symptoms Diagnosis; Table 6 Platform Troubleshooting Guidelines - Emerson Copeland Scroll SZV32 Installation, Operation & Maintenance Manual

Dual-Compressor Module
5.3

Platform Symptoms Diagnosis

Use the following guidelines to troubleshoot operating problems.
Table 6 Platform troubleshooting guidelines
Problem
Low Gas
Flow
High Oil
Carryover
Compressors
Won't Run
Incorrect
Compressor
Speed
High
Temperature
Recommended Actions
• Low inlet pressure
• Insufficient gas supply
• High temperature
• Bypass valve open
• Low Compressor speed
• Restricted inlet screen
• Saturated or dirty secondstage oil separator
• High oil level
• Restricted scavenge orifice
• Insufficient back pressure
• Oil dilution
• Determine drive status.
• Is inhibit circuit closed?
• Is run signal present?
• Does the VFD indicate a fault code?
• Low inlet pressure
• High discharge pressure
• High temperature, fan, low oil, oil cooler
• Problem with speed control sensor and related components
• Low oil level
• Restricted oil filter
• Blocked oil cooler air flow
• Oil cooler fan not operating
• Operation conditions outside of Compressor Module specifications
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Technical Support and Service
2006SSD-75 R4 (10/10)