Trane 400 - Unit Operation; Control System Overview; Basic Unit Operations; Weekend Shutdown Procedure

14 RAU-SVX01F-E4
Control System
The control is through the CH530
control module.
Unit operations
- Start-up the unit by pushing
«auto» on the control module
screen.
Week end shutdown
- If the unit needs to be shut down
for a short period of time, push the
«stop» button of the module.
- If the unit is shut down for a longer
period, see under ”Seasonal
shutdown”, below.
- Insure that all safeties are taken
to protect the compressor against
refrigerant migration.
- Do not put the general and control
disconnect switches to off.
Seasonal shutdown
- If the unit needs to be shut down
for a short period of time, push the
«stop» button of the module.
- Carry out leak test.
- Carry out oil analysis
- Record operating pressures,
temperatures, amperages and
voltage.
- Check operation of machines/
compare conditions of operation
against original commissioning
data.
- Push the «stop» button of the
module.
- Insure that all safeties are taken
to protect the compressor against
refrigerant migration.
- Fill out the visit log sheet and
review with the operator.
- Do not put the general and control
disconnect switches to off.
Seasonal start-up
- Check operational set points and
performance.
- Calibrate controls.
- Check operation of all safety
devices.
- Inspect contacts & tighten
terminals.
- Megger the motor compressor
windings.
- Record operating pressures,
temperatures, amperages and
voltage.
- Carry out leak test.
- Check configuration of unit control
module.
- Change the oil as required based
upon results of the oil analysis
made during seasonal shutdown
- Check operation of machines/
compare conditions of operation
against original commissioning
data.
- Fill out the visit log sheet and
review with the operator
Operation