PROMAG
STARGEL HF 35 - HF 60 - HF 90
58
GB
B 16 - REFRIGERATION SYSTEM
B 17 - MECHANICAL MAINTENANCE
Clean and inspect the seals located on the front
flange of the cylinder and on the rear.
All refrigeration system components used in our
machines are manufactured by leading firms in
the sector and are provided with internationally-
recognized quality certification.
Before the refrigeration systems are installed, they
are appropriately dehydrated and leak tested
under hard vacuum and high pressure.
Our STARGEL HF machines use R 404 A
refrigerant gas.
If gas has to be added to the refrigerating system,
first eliminate the cause of the loss, then fill the
system using the type and relative amount of gas
indicated on the technical data table and on the
data plate located on the rear side of the machine.
The compressor operating temperatures are:
- Evaporation: -25 to -35°C
- Condensation: + 39°C.
The condensation temperature is controlled by a
special pressure control valve.
Whenever the condensation temperature is not
being controlled properly, the water system must
be checked.
Water hardness can cause the formation of
deposits which can obstruct the filters and reduce
cooling efficiency.
To overcome this, the filter deposits must be
removed with the use of a chemical product
especially designed for this purpose.
After each repair operation on the refrigeration
system, the machine oil level should be checked.
With the machine turned off, control that the
indicated level is between A = 1/2 and B = 1/4.
Also replace the dehydrator filter.
ATTENTION: When adding oil, use the type
indicated on the compressor data plate and
replace the dehydrator filter.
1/4
1/2
A
B
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