Zanotti un0 060, Workshop Manual

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3.2 Operations
Cooling Circuit
Leak Search Procedure
Individual Protection Devices
Goggles
Gloves
(a)
Recover Refrigerant.
(b)
Charge 1kg of refrigerant.
(c)
Fill with Nitrogen until 10bar
pressure are equalized into
cooling circuit.
(d)
With turned off unit check every
union, junction and shut off
valve for leaks with electronic
nose and detection spray.
CAUTION
!
Electronic nose
gives better results in an indoor place
without wind blowing.
(e)
Check vibration dumper and
flexible hoses with detection
spray.
(f)
Check all of cooling circuit parts
with electronic nose and
detection spray.