7
Check list after start-up
After the installation has been running for several hours, carry out the following checks. Make sure that:
1. The voltage and current drawn by the condensing unit is correct.
2. If oil sight glass is present, observe the oil level during operating condition to confirm the oil remains visible.
3. The high and low operating pressures are correct
4. Fan blades are rotating freely.
5. Check if the airflow is from the condenser towards the fan.
6. Check current draw and voltage
7. Superheat and subcooling are on line with the state of the art (do not overcharge the system)
8. The system is checked again for leak
9. The filter drier is checked and or changed.
Make sure the installation is running smoothly.
The scroll compressor needs a run-in period minimum 72 hours to give its full performances. During this break-in the
power input can be slightly higher than normal conditions.
Carry out a general inspection of the installation (e.g. cleanliness, vibration and/or unusual noises).
Ensure the settings and the functions of the electrical circuits are correct.
5. SERVICING AND MAINTENANCE
No unauthorized modifications to the condensing units are allowed. Authorization from EMBRACO must be obtained
prior to any modification whatsoever. The housing can be cleaned with hot water (70°C). Do not use product
containing alcohol or ethanol. Any faulty part must be replaced with the original spare part. In case a replacement of
electrical components of compressor is required, please use a full KIT from EMBRACO. In order to maintain the low
noise of the condensing unit over time, we recommend replacing the anti-vibrations mounts as soon as any change
on the noise or vibration level of the unit is noticed.
Always switch off the units at main switch before opening the units.
5.1 Fan.
Use correct spare part KIT from EMBRACO Housing size.
5.2 Condenser.
The condenser must be cleaned ideally twice a year (before and after the hot season).
5.3 Leak checking and periodical inspections
.
A leak check must be carried out at least once a year. It
can vary according to the teqCO2, refrigerant and charge used. Please refer to your local regulation. Check regularly:
• The condition of refrigeration connections (e.g. for any loosening or oxidation).
• Operating conditions.
• The mounting of the condensing unit on its base.
• The housing fixing (no vibration).
5.4 Electrical checks.
Systematically check all electrical components. If screwed terminal, tighten connections
once a year.
Check regularly:
• Safety and control devices
• Crankcase heater operation.
5.5 Filter drier
.
Condensing units are fitted with a brazed filter drier. When changing the filter drier, ensure that it
is replaced with an equivalent in capacity and pressure drop and with the correct direction of flow.
