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Warning;
Biological hazard
Electricity
Wear head
protection
Wear ear protection
Wear eye protection
Warning;
Sharp element
Wear protective
gloves
Wear safety
footwear
Warning; Warning; Warning;
Flammable material
Warning;
Hot surface
- With machine o, access its cooling circuit;
- Connect the necessary instruments,
• Pressure gauges connected through appropriate extensions to the
compressor inlet and outlet pressure plugs;
• Thermometers connected to thermocouple probes that are xed
to the compressor inlet and outlet pipes. Avoid using metratast that
require the operator to near the machine cooling circuit;
- Access the machines and acquire the measurements, keeping AWAY
from the under pressure parts of the cooling circuit;
- As soon as the measurements are taken, turn o the machine, remove
the instruments and close the cooling circuit compartment.
The thermostatic valve must be calibrated with the machine o.
The high/low pressure switch, where present must be tested with the
machine “closed”, reading the high pressure circuit pressure on the machine
control panel.
In case of machines with the cooling circuit compartment not closed by
framework, the high/low pressure switch must be tested by standing in
front of the machine panel where the control panel is located, remaining
distant and not exposed to the under pressure parts of the cooling circuit.
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