Installation | |
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2.6.3Compressor Module Motor Protection Variable Speed Compressor Module Protection
•The two Compressors in the variable speed Compressor Module should be treated as a single
Compressor. Both Compressors must be run at the same time to prevent oil from accumulating in one Compressor. Module capacity can be changed by varying the typical Compressor speed, ranging from 2400 to 4800 rpm.
•If two or more Compressor Modules are used together, each module can be considered as one
Compressor and individual modules can be turned off.
•Each Compressor on a variable speed Compressor Module requires independent overload protection between the VFD and Compressor. See 2.6.1 on page 10.
Figure 10 Motor Control
| 480VAC |
| Variable Speed |
Variable |
|
Frequency |
|
Drive | Drive Inhibit |
OL1
OL2
Compressor 1 | Compressor 2 |
12 |
