Gardner Denver VS45A - Electrical Wiring; Figure 2-2 - Package Maximum Current Consumption Summary

13-18-601 Page 17
It is mandatory that any water-cooled unit be installed in a shelter heated to
temperatures above freezing (40°F., 5°C).
Please refer to Section 6 of this manual for detailed instructions on the installation, operation and
maintenance of the water-cooled heat exchangers.
ELECTRICAL WIRING - The compressor package is (internally) factory wired for use with the voltage
specified on the order - it is only necessary to connect power supply and ground wires to the provided
wire terminal blocks.
Electrical shock can cause injury or death. Open main disconnect switch,
lockout and tagout before working on control box.
Gardner Denver Guidelines for proper wiring, grounding and feed power conditioning - This
compressor package is provided with a variable speed drive (VFD) to control compressor motor. The
indicated Gardner Denver guidelines for proper wiring, grounding, and feed power conditioning must be
followed in order to protect the VFD electronics. Failure to do so will void your warranty.
Electrical Wire Sizing – A certified electrician familiar with National Electric Codes and applicable local
codes shall size the electrical power wires serving the compressor package. Refer to Figure 2-3, for a
summary of maximum package current consumption values.
Package Size Maximum Current Draw
VS45 100 Amps
VS50 117 Amps
VS70 160 Amps
Figure 2-2 – PACKAGE MAXIMUM CURRENT CONSUMPTION SUMMARY
Electrical Wire Routing – Routing of the electrical power wires into the electrical hardware enclosure is
best done through its roof area.
Line Reactor – A line reactor provides conditioning of the electrical power supply to the compressor
package by attenuating noise and fluctuations. It shall be required in your particular application if any of
the following conditions exist:
• Transformer KVA is greater than recommended – see Figure 2-3, page 18.
• Line has switched Power Factor correction capacitors.
• Existing line reactor not properly sized – see Figure 2-3, page 18.
• Other large loads on the same power feed as the compressor.
CAUTION