Quantech QTC3040T

Quantech
7
Form QTC3-NM1
Issue date: 12/19/2023
Table of contents (cont’d)
Section 9: Service and troubleshooting ............................................................................................................181
Clearing history buffers................................................................................................................................. 181
Resetting system lockout faults .................................................................................................................... 181
Service mode ...............................................................................................................................................181
Service mode, outputs ..................................................................................................................................181
Service mode, chiller configuration ..............................................................................................................182
Service mode, analog and digital inputs .......................................................................................................182
Control inputs/outputs ..................................................................................................................................183
Checking inputs and outputs ........................................................................................................................185
Optional printer installation ........................................................................................................................... 191
Troubleshooting ............................................................................................................................................193
Section 10: Maintenance.....................................................................................................................................195
Compressors ................................................................................................................................................195
Condenser fan motors .................................................................................................................................. 195
Condenser round tube coils .........................................................................................................................195
Condenser MCHX ........................................................................................................................................195
Microchannel coil cleaning ...........................................................................................................................195
Operating parameters ..................................................................................................................................198
On-board battery backup ..............................................................................................................................198
Thermal dispersion flow switch ....................................................................................................................198
Brazed plate heat exchanger (evaporator) heater ........................................................................................198
Overall unit inspection ..................................................................................................................................198
Temperature .................................................................................................................................................202