Trane CVHE Troubleshooting

CVHE-SB-32A 44
Starter Module Values
The starter module (2U1) is present in all Trane-provided starter panels, whether unit-mounted or
remote. For CTVs, if no Trane starter is provided and the customer is providing the starter, 2U1 is
mounted in an extension of the unit control panel. It is still designated as 2U1.
2U1 controls the starter when starting, running and stopping compressor motor and provides an
interface to all types of starters and AFDs (adjustable frequency drives).
2U1 provides compressor motor protection for running overload, phase reversal, phase loss,
phase unbalance and momentary power loss.
Low Voltage (<30VAC) Inputs:
24 VAC; IPC link to chiller module; phase voltages (optional); phase currents; solid-state
heat sink temperature (optional); starter driver fault.
Low Voltage (<30VAC) Outputs:
Speed signal output (0-10 VDC - optional)
High Voltage (>30VAC) Inputs:
Transition complete CTV only)
High Voltage (>30VAC) Outputs:
Stop relay; starter relay; run relay; shorting relay; transition relay, shunt trip relay.
Figure 7
Starter Module (Wye-Delta)
J3
J1 J2
J4
J5
J6
J8
J10
IP Communications
Phase A - B Volts
Phase B - C Volts
Phase C - A Volts
Phase A Current
Phase B Current
Phase C Current
Transition Complete
Stop Relay
Start Relay
Run Relay
Shorting Relay
Transition Relay
J12
J14
24 VAC
Heat Sink Temp
Starter Driver Fault
Shunt Trip Relay
J16
J7

Trane CVHE Specifications

General

Brand	Trane
Model	CVHE
Category	Chiller
Language	English