General 3-Phase Main Voltage Input Terminal Block Installation; Terminal Block Torque Specifications - Danfoss Turbocor TT Series Service Manual

Figure 4-87 Input Terminal Block Installation - TTS/TGS/TTH/TGH Rev. H (Except TTS300/TGS230)
1. Install the two (2) spacers if previously removed.
2. Place the Terminal Block on the compressor housing.
3. Place the three (3) AC Bus Bars onto the Terminal Block and finger tighten all fasteners. Secure them
4. Reconnect the three (3) terminals of the Soft Start cable harness to the AC Bus Bars.
5. Install the mains input cables to the Terminal Block and torque to 21 Nm (15 ft.lb.).
6. Continue to Section 4.11.2.6 G eneral 3-Phase Main Voltage Input Terminal Block Installation.

4.11.2.6 General 3-Phase Main Voltage Input Terminal Block Installation

1. Install the top covers. Refer to Section 4.1 C ompressor Covers on page 52.
2. Return the compressor to normal operation.

4.11.2.7 Terminal Block Torque Specifications

Table 4-19 Terminal Block Torque Specifications
Description
TTS300/TGS230 AC Bus Bar to SCR fastener, M6x16
TTS300/TGS230 Terminal Block Mounting fastener, M5x15
TTS300/TGS230 Fuse Assembly to Terminal Block fastener
AC Bus Bar to Terminal Block fastener - Rev F and earlier (excludes TTS300/TGS230 compressors)
AC Bus Bar to Terminal Block fastener - Rev H (excludes TTS300/TGS230 compressors)
Terminal Block to Compressor fastener, M5x45 (excludes TTS300/TGS230 compressors)
Page 106 of 294 - M-SV-001-EN Rev. H 1/23/2023
a. For Rev F and earlier compressors, use two (2) M5x45 fasteners to attach the Terminal Block to the
compressor housing and and torque to 4 Nm (35 in.lb.).
b. For Rev H compressors, loosely install the three (3) fasteners. Then torque the two (2) M5x45
fasteners to 4 Nm (35 in.lb.) and torque the rear M6x16 fastener to 5 Nm (44 in.lb).
with the six (6) Terminal Block fasteners. Torque the fasteners to 4 Nm (35 in.lb.).
a. For Rev F and earlier compressors, torque the six (6) fasteners to 3 Nm (27 in.lb.) and the three (3)
M8x20 AC Bus Bar Fasteners to 9 Nm (80 in.lb.).
b. For Rev H compressors, torque the six (6) M5x12 fasteners to 2Nm (17 in.lb.) and the three (3)
M6x16 AC Bus Bars to SCR fasteners to 5 Nm (44 in.lb.).
Nm Ft.Lb. In.Lb.
5 - 44
3 - 27
4 - 35
3 - 27
2 - 17
4 - 35