Hoval Belaria fit 53, Инструкция по установке и эксплуатации

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Cooling circuit
1. Visually inspect the refrigerating circuit: the presence
of oil stains can by a symptom of leakage (caused
e.g. by transportation, handling or other).
2. Verify that the refrigerating circuit is in pressure: Us -
ing the unit manometers, if present, or service ma -
nometers.
3. Make sure that all the service outlets are closed with
proper caps; if caps are not present a leak of refriger -
ant can be possible.
4. Open all of the refrigeration circuit shut-off valves
(if applicable).
Hydraulic circuit
1. Before connecting the unit to the hydraulic sys -
tem, make sure that the hydraulic system has been
washed and that the water has been drained
2. Check that the hydraulic circuit has been filled and
pressurized-
3. Check that the shut-off valves in the circuit are in the
“OPEN” position.
4. Make sure that there is no air in the water circuit. If
necessary, vent the water circuit via the existing air
valves.
5. When using antifreeze solutions, make sure the glycol
percentage is suitable for the type of use envisaged.
NOTE
-
Neglecting the washing will lead to several filter clean -
ing interventions and at worst cases can cause damag-
es to the exchangers and the other parts.
Electric circuit
Check if the unit is earthed.
Check the connections of the electrical cables:
- Vibrations caused by handling and transport may cause
loosening.
Connect the unit to the supply by closing the disconnec -
tor, but do not start the unit yet.
Check the network frequency and voltage values, which
must be within the limits: 380-415 V 3N~ 50 Hz +/-6 %
Check and adjust the phase balance as necessary: it
must be lower than 2 %
Example:
400 - 6 % = 376
400 + 6 % = 424
NOTE
-
Working outside of these limits can cause irreversible
damages and voids the warranty.
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