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3. Make sure Actuator opening is 5% and hot gas
bypass is 100% after shut down, and record the oil
level.
4. Re-confirm the oil level change and oil heater
heating status after 2 hours shutdown.
Table 6.1 Compressor unit first run check table
Some important issues as below before starting the compressor:
1. Before the initial start at the job site, check all auxiliary facilities which should be fixed
firmly.
2. In the low ambient temperature, oil viscosity should be considered. Refrigerant and oil
heaters are supposed to turn on if necessary.
3. Check all electronic equipment match the controller.
4. Check all stop valves in the system which should be opened.
5. The operating condition of the compressor after commissioning at the job-site should be
adjusted; discharge temperature will be at least 5
℃
abovesaturated condensing
temperature and suction vapor superheat should be within 1
℃
comparing to saturated
evaporating temperature.
6. Contact HANBELL or the local distributor if any abnormal vibration or noise is found at
pipeline while the compressor is running.
7. Regularly check the chiller according to national regulations and the following items
should also be checked:
-Operating data
-Oil level
-All compressor monitoring parts
-Check electrical cable connections and tightness
Note: During shipment of the compressor, all valves have been closed. After layout of all
components in the system, make sure these valves are open.
6.5.2 Compressor control logic
