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10. Connect the compressor cable harness to the IGV Motor feedthrough, suction and discharge sensors,
and SCR Temperature sensor.
11. Rotate the Retainer Clip until it is directly above the IGV Connector and torque the M5x16 IGV
Feedthrough Fastener to 25 Nm (18 ft.lb.).
12. Install the DC Bus Bar and Capacitor assembly and Snubber Capacitors. Refer to Section 4.21.3 DC
Capacitor Bus Bar Assembly Removal and Installation on page 168.
13. Install the Terminal Block Assembly. Refer to Section 4.11.2 3-Phase Main Voltage Input Terminal Block
Removal and Installation on page 102.
14. Connect the three (3) AC wires from the Soft Start AC/DC cable harness to the appropriate AC bus bar.
Inverter General Installation
1. Connect the Motor Sensor wires.
2. Connect the SCR Gate cable harness to the SCRs noting its orientation. Refer to Section 4.16.2 Soft Start
SCR Gate Cable Removal and Installation on page 128.
3. Connect the Inverter cable harness to the top of the Inverter.
4. Install the mains input cables to the Terminal Block and torque to 21 Nm (15 ft.lb.).
5. Install the Soft Start. Refer to Section 4.14.3 Soft Start Removal and Installation on page 117.
6. Install the top covers. Refer Section to 4.1 Compressor Covers on page 52.
7. Return the compressor to normal operation.
4.22.7 Inverter Card Replacement
This section details the steps to remove and install the Inverter Control Card. If the Inverter proves to be working
properly and the Inverter Control Card has been confirmed to have failed, follow the removal and installation steps
for the Inverter Control Card.
The replacement Inverter Control Cards are only for the 613 Inverter. Refer to Bulletin B-CN-107-EN Rev B for further
details regarding the applicability of the control cards.
4.22.7.1 Inverter Card Removal
1. Isolate compressor power as described in Section 1.8 Electrical Isolation on page 22.
2. Remove the Soft Start. Refer to Section 4.14.3 Soft Start Removal and Installation on page 117.
3. If using the Inverter tester - Remove the DC Capacitor and Bus Assembly. Refer to Section 4.21.3 DC
Capacitor Bus Bar Assembly Removal and Installation on page 168.
NOTE
The above step is only necessary when using the inverter tester.
4. Disconnect the ribbon cable from the Inverter.
• • • CAUTION • • •
Do not remove the fasteners that secure the Inverter to the compressor main housing.
5. Remove the six (6) Driver Board fasteners using a T15 Torx bit. Begin on the outside and work towards
the center. Refer to Figure 4-210 Driver Board Fasteners on page 189.
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