CPS SCH100KTL-DO-600 - Chapter 7 Product Maintenance; General Maintenance

96
Chapter 7 Product Maintenance
7.1 General Maintenance
To ensure optimal performance keep the Air Inlets Clean. Check
the heat sink for debris using a flashlight though the fan inlets. Clogged
heat-sinks will cause the fan duty-cycle to increase and reduce the life
expectancy of the fans. The heat-sink can be cleaned by forcing
pressurized are through the fan openings. The fans can be removed for
the cleaning process.
Tight connections will optimize reliability. Connections should be
checked using the torque summary table below.
Torque Table
SI Unit
USCS
ELECTRICAL CONNECTIONS
DC String Wiring for Standard WB
3 N-m
26.5 in-lbs
DC Cable for Centralized WB (Version #1)
14.2 N-m
126 in-lbs
DC Cable for Centralized WB (Version #2)
22.5 N-m
200 in-lbs
AC terminal M10 (L1 - L3) Standard & Central Ver #2 WB
22.5 N-m
200 in-lbs
AC terminal Screw-clamp (N) Standard & Central Ver #2 WB
14N-m
120 in-lbs
AC terminal M8 (L1 - L3) Central Ver #1 WB
14.2 N-m
126 in-lbs
AC terminal M8 (N) Central Ver #1 WB
14.2N-m
126 in-lbs
Internal grounding bar A
3 N-m
26.5 in-lbs
Internal grounding bar B
5 N-m
45 in-lbs
Internal grounding stud
6 N-m
52.8 in-lbs
External grounding point
6 N-m
52.8 in-lbs
RS485 Communication
0.2 N-m
1.8 in-lbs
MECHANICAL CONNECTIONS
Inverter to Bracket
6 N-m
52.8 in-lbs
Cover
4 N-m
35.4 in-lbs
Main to Wire Box
12.5 N-m
111 in-lbs
Fan Replacement
1.6 N-m
14.2 in-lbs