Installation and maintenance manual
H.I.B Hydac International Page 15 of 36
Version: G/DV
Date: 11.01.2023
On principle, cleaning and maintenance of the chiller / unit must be carried out with the chiller
/ unit at standstill only. The procedure for shutdown of the unit given in the manual must be
observed without fail.
Immediately after completing the work all safety and guarding chiller must be replaced and /
or put into service again.
Modification of or changes to the machine / unit are only permitted after previous consultation
of the manufacturer. Original spare parts and accessories authorized by the manufacturer
serve for ensuring safety.
The use of other parts will void the liability for the resulting consequences.
5.3.2 Improper operatinig modes
The operating safety of the delivered machine / unit is only guaranteed with proper use. The limit
stated in the technical data must never be exceeded.
The unit is not suitable for use in an explosion-endangered atmosphere.
The unit must not be used for cooling flammable or explosive substances.
5.3.3 Handling of refrigerants (optional)
The refrigerant has some kind of irritant effect on skin and mucous membranes. Liquid refrigerants
on the skin may cause frostbite.
Refrigerants may decompose and form toxic decomposition products (e.g. hydrogen chloride,
phosgene) in the presence of naked flames or hot surfaces.
The refrigerant volatizes when it escapes in gaseous form the air. Intentionally blowing off and /
or discharging the refrigerant is not permitted.
Transport and / or install refrigerating plants in such a way that they cannot be damaged by
inhouse transportation or traffic.
When refrigerant is escaping the unit, you must never smoke in the vicinity of the
unit / chiller. The gases will decompose to cauterizing acids in the burning
cigarette that will damage your lungs.
Repairing the cooling circuit may be by an expert firm only.
5.3.4 Staff qualifications and training
The personnel for operation, maintenance, inspection and installation must be suitably qualified
for this work. Work on the system may only be carried out by trained specialists in the fields of
electrical, mechanical or refrigeration engineering. The area of responsibility, competence and
supervision of the personnel must be precisely regulated by the operator.
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