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Dual-Compressor Module Installation
Code Description
1 Control Techniques VFD,* 30 HP
2 24VDC power supply **
3 PLC or other control for inputs from
Compressor Module
4 480V 3-phase input ***
5 Overload protection device, 2 required
Notes
* VFD on Variable Speed Drive models.
** All other components supplied by Packagers.
*** Contact factory for information about single-phase
applications.
Optional if more than one
Compressor Module used
2.6.4 Electrical Requirements
Figure 11 Typical Compressor Module Electrical Requirements
1
2
3
4
5 5
Optional if more than one
compressor module used
Power
to Compressors
(2)
24VDC
Cooling
Fan
24V Discrete Inputs
from Scroll Module
1 1
Table 2 Typical Compressor Module power supply requirements
Compressor Power (data based on 480VAC) Variable Speed
Module horsepower 30 HP
VFD voltage supply range 342-528VAC
Phase 3-phase*
Frequency 50/60 Hz
Maximum VFD input current 37A
Low Voltage DC Specications - Oil Cooler Fan Voltage and Power
Fan motor voltage 24VDC
Total fan motor current 9A
Additional power may be required to support customer logic and control circuits.
* Contact factory for information about single-phase applications.
** Reduced capacity at 50 Hz.