16 CSRN-XHE2 FFA 12.2-24.4 M07Z40M15-02
7 Start-up
7.1 General description
The indicated operations should be done by qualied technician with specic training on the product.
Upon request, the service centres performing the start-up.
The electrical, water connections and the other system works are by the installer.
Agree upon in advance the star-up data with the service centre.
Before checking, please verify the following:
•
the unit should be installed properly and in conformity with this manual
•
the electrical power supply line should be isolated at the beginning
•
the unit isolator is open, locked and equipped with the suitable warning
•
make sure no tension is present
After turning o the power, wait at least 5 minutes before accessing to the electrical panel or any other electrical component.
Before accessing check with a multimeter that there are no residual stresses.
7.2 Preliminary checks
For details refer to the dierent manual sections.
Unit OFF power supply
1. safety access
2. functional spaces
3. air ow: correct return and supply (no bypass, no stratication)
4. structure integrity
5. fans run freely
6. unit on vibration isolators
7. air lters present and clean
8. completed aeraulic system
9. refrigerant circuit visual check
10. earthing connection
11. power supply features
12. electrical connections provided by the customer
7.3 Start-up sequence
For details refer to the dierent manual sections.
Unit ON power supply
1. compressor crankcase heaters operating at least since 8 hours
2. o-load voltage measure
3. phase sequence check
4. shut-o valve refrigerant circuit open
5. unit ON
6. load voltage measure and absorptions
7. liquid sight glass check (no bubbles)
8. check all fan operating
9. check air ow on outer coil (no by-pass, no stratication)
10. air ow rate measurement
11. supply, return and outdoor air temperature measurement
12. measure super-heating and sub-cooling
13. check no anomalous vibrations are present
14. climatic curve personalization
15. climatic curve personalization
16. scheduling personalization
17. re alarm conguration *
18. complete and available unit documentation
* only if present