M0V940M13-06 WSN-XIN
21-141
23
7 Start-up
7.1 General
description
The indicated operations should be done by qualified technician with specific 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 off 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 different manual sections.
Unit OFF power supply
1.
safety
access
2.
functional
spaces
3. air flow: correct return and supply (no bypass, no stratification)
4.
structure
integrity
5. fans run freely
6. unit on vibration isolators
7. unit input water shut-off valves for cleaning
8. vibration isolators on water connections
9. expansion tank (indicative volume = 5% system content)
10.
cleaned system
11. loaded possible glycol so corrosion inhibitor
12. system under pressure
13.
vented system
14. refrigerant circuit visual check
15.
earthing connection
16. power supply features
17. electrical connections provided by the customer
7.3 Start-up
sequence
For details refer to the different manual sections.
Unit ON power supply
1. compressor crankcase heaters operating at least since 8 hours
2. off-load voltage measure
3. phase sequence check (unit only 400/3/50)
4.
unit
ON
5. load voltage measure and absorptions
6. Max fan speed setting
7. measure of return and supply water temperature and flow valutation
8. super-heating and sub-cooling measure and discharge temperature
9. check no anomalous vibrations are present
10. climatic curve personalization
11. set date and time
12.
personalise scheduling
13. personalise DHW *
14. climatic curve personalization
15. set remote control *
16. complete and available unit documentation
*If present
