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M-SV-001-EN Rev. G
4.17.2.2 Soft Start SCR Gate Cable Installation
1. Connect the SCR Gate Cable to the Softstart.
a. For compressors with the Closed-Top Soft Start, install the J8 connector.
– Be sure to align the pins properly so as not to bend them or misalign the plug. The flat
portion of the connector goes to the top. Refer to "Figure 4-126 Closed-Top Soft Start J8
Connector Top".
Figure 4-126 Closed-Top Soft Start J8 Connector Top
b. For compressors with the Open-Top Soft Start, install the J2 connector.
Figure 4-127 Open-Top Soft Start J2 Connector
2. Once the Cable Harness has been installed onto the Soft Start, the cable should be routed
toward the SCRs.
3. Plug each pigtail into its respective SCR making sure you line up the “key” on the pigtail
connector to the “key” of the SCR itself. This may require the use of small forceps or needle
nose pliers. Refer to "Figure 4-128 SCR Gate Connector Alignment" on page 124 for the two
(2) different styles of SCRs.
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