Carrier PC211 specifications Restore chiller to normal operation, calibrate motor amps

14.Restore chiller to normal operation, calibrate motor amps.

Solid-State Starters

Troubleshooting guides and information pertaining to the operation of the solid-state starter may be found in Figure 46, Figure 47, Figure 48, Figure 49, Figure 50, Figure 51, Figure 52, Table 12, and Table 13.

Attempt to solve the problem by using the following preliminary checks before consulting the troubleshooting tables.

When the power is off:

•Inspect for physical damage and signs of arcing, overheating, etc.

•Is the wiring to the starter correct?

•Are all connections in the starter tight?

•Is the current feedback resistor properly adjusted and installed?

•Is a heater coil installed in each leg of the motor?

•Is the control transformer fuse blown?

•Is the motor connected to the starter?

Testing Silicon Control Rectifiers in Benshaw, Inc. Solid-State Starters

If a silicon control rectifier (SCR) is suspected of being defective, use the following procedure as part of a general troubleshooting guide.