20.05 – 4138421_03
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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 off, 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 fixed
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 off the machine, remove
the instruments and close the cooling circuit compartment.
The thermostatic valve must be calibrated with the machine off.
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.
CLEANING COIL MICRO-CHANNEL
Keep surfaces clean battery mirco-channel is critical to maintaining the
refrigeration systems at optimum performance levels.
Dirt, grease, oil, and other foreign material must be removed periodically
from the surface of the battery according to the following recommendations.
Required elements:
— Personal protective equipment
— Hot water
— High-pressure washing
Procedure:
Use a high-pressure washer with a large cast and enough
force to remove all foreign material. Proceed with care to avoid damage
and possible wear of the fins.
Rinse thoroughly with water all the cleaning material from the battery
and surrounding equipment, including the fan and carpentry.
Summary of Contents for NYB
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