Trane RTHD Troubleshooting Manual page 51

Figure 33.CHHP Compressor
RLC-SVD05A-EN
Compressor Capacity - RTAC
1 Identify the LLID associated with the compressor to be tested (1U16, 1U21,
2U16, 2U21). Disconnect the wires, take care to identify the wires to prevent
cross wiring when reconnecting.
2 Install a toggle switch between the Control power HOT to the load and unload
leads (previously connected to J3-1 and J2-1).
1TB5-1, 2TB5-1 Hot
1TB5-16, 2TB5-16 Neutral
Initially make sure that the Load toggle switch is open and the Unload toggle
switch is closed.
3 Connect a manifold gauge set to the schrader valve located at the end of the
piston housing. This schrader allows access to the pressure behind the male
piston. Refer to Figure
4 Re-apply power to the unit and place the chiller in the "stop" mode. Using
techview lockout all compressors except the compressor to be tested. Place
the chiller in "Auto" mode and provide all necessary interlocks and a load to
start the chiller
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