Surge Protection

Surging of the compressor can be determined by the PIC through operator configured settings. Surge will cause amperage fluctuations of the compressor motor. The PIC monitors these amperage swings, and if the swing is greater than the configurable setting in one second, then one surge count has occurred. The SURGE DELTA PERCENT AMPS setting is displayed and configured on the Service1 screen. It has a default setting of 25% amps, SURGE PROTECTION COUNTS can be monitored on the Maint03 table.

A surge protection shutdown of the machine will occur whenever the surge protection counter reaches 12 counts within an operator specified time, known as the SURGE TIME PERIOD. The SURGE TIME PERIOD is displayed and configured on the Service1 screen. It has a default of 5 minutes.

Click here for Figure 20 — 19XL Hot Gas Bypass/Surge Prevention

Click here for Figure 21 — 19XL with Default Metric Settings

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Carrier PC211 specifications Surge Protection