horsch 80910205, Operating Instructions Manual

Page: 184 / 218

17.9 Collector / dryer
The ambient temperature must be
higher than the temperature set on the
thermostat (no1 °C), so that the
compressor will cut in.
Since the refrigerant collector is under operating pres-
sure, it is subject to the Pressure Vessel Ordinance with
respect to manufacturing and testing.
In this ordinance the pressure vessels are classified in
test group II in accordance with their operating pressure p
in bar, their volumetric capacity l in litres and the pressure
contents product p x l.
According to § 10 of the Pressure Vessel Ordinance,
these pressure vessels must be subjected to repetitive
testing by an expert as per § 32. Repetitive tests in
this case consist of external examinations, normally on
vessels in operation. The refrigerant collector is to be
visually examined two times per year in connection with
the inspections. Special attention must thereby be paid
to corrosion and mechanical damage. Should the vessel
not be in a fit state, it must be replaced because of safety
related reasons, as a precautionary measure for the oper-
ator and third parties, because of the dangers related with
the handling and operation of pressure vessels.
17.10 Check state of refrigerant and
filling quantity
Maintenance every 100 hours:
Refrigerant losses through hoses in the air conditioning
system are unavoidable. Check the refrigerant level every
100 operating hours.
Maintenance once per year:
Have the air conditioning system checked and, if neces-
sary, repaired by an authorized expert workshop.
Maintenance every two years:
Have refrigerant and collector/drier changed by an au-
thorized expert workshop.
Maintenance work on the air condition -
ing system, which requires intervention
in the refrigerant circuit (e.g. refilling
refrigerant, replacement of collector/
drier), must only be carried out by au-
thorized expert workshops.
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