CLIVET WSAN-XES 18.2, Инструкция по установке, использованию и техническому обслуживанию, Страница: 27 / 52

27 WSAN-XES 18.2-35.2 M0SM40N17-04
6 START-UP
General
The indicated operations should be done by qualified
technician with specific training on the product.
The electrical, water connections and the other system
works are by the installer.
Upon request, the service centres performing the start-
up.
Agree upon in advance the star-up data with the
service centre.
For details, refer to the various chapters in the manual.
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
sectioned at the beginning.

The line sectionalizing device 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.
Preliminary checks
Unit power supply OFF
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. air filters present and clean
8. anti-vibration mounts on water connections
9. expansion tank (recommended volume = 10%
system content)
10. minimum system water content
11. system washed
12. system c any glycol so corrosion
inhibitor
13. system under pressure
14. vented system
15. refrigeration circuit visual check
16. earth connection
17. power supply features
18. Electrical connections by the customer
Start-up sequence
Unit power supply ON
1. compressor casing electric heaters in operation for
at least 8 hours
2. vacuum voltage measurement
3. phases sequence control
4. pump manual start-up and flow-rate check
5.
refrigeration circuit shut-off valves opening (if
applicable)
6. Unit ON
7. load voltage and inputs measurement
8. liquid warning light check (no bubbles)
9. operation check of all fans
10. supply and return water temperature
measurement
11. subcooling and overheating measurement
12. check there are no abnormal vibrations
13. set-point customisation
14. climatic curves customisation
15. scheduling customisation
16. complete and available machine documentation
REFRIGERANT CIRCUIT
1. Check carefully the refrigerating circuit: the
presence of oil stains can mean leakage caused by
transportation, movements or other).
2. Verify that the refrigerating circuit is in pressure:
Using the unit manometers , if present, or service
manometers.
3. Make sure that all the service outlets are closed with
proper caps; if caps are not present a leak of
refrigerant can be possible.
4. Open all of the refrigeration circuit shut-off valves (if
applicable).
Water circuit
1. Before realizing the unit connection make sure that t
he hydraulic system has been cleaned up and the
clearing water has been drained
2. Check that the water circuit has been filled and
pressurized
3. Check that the shut-off valves in the circuit are in the
"OPEN" position.
4. Check that there isn’t air in the circuit, if required,
evacuate it using the air bleed valve placed in the
system high points.
5. When using antifreeze solutions, make sure the
glycol percentage is suitable for the type of use
envisaged
6. Neglecting the washing will lead to several filter
cleaning interventions and at worst cases can cause
damages to the exchangers and the other parts.
Weight of dycol (%) 10 20 30
Freezing temperature°C -3,9 -8,9 -15,6
Safety temperature +1 -4 -10