Zanotti Zer0 120, Руководство по ремонту

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If starting unit for the first time after installation the compressor
pressure regulating valve will need to be reset.
If starting unit for the first time after installation or starting after
adding/removing an optional feature or if Owners operating parameters
have changed, the Configuration will need to be reset.
Compressor failure will occur if inert gas brazing procedures are not
used on units with R404A/R134A and POE oil.
To prevent trapping liquid refrigerant in the manifold gauge set be sure
set is brought to suction pressure before disconnecting
When working with refrigerant use safety glasses and gloves to avoid
burns. Hoses and copper tubing can be hot when unit is running.
Refrigerant R404a is a blend. Charging as a vapor will change the
properties of the refrigerant. Only liquid charging is acceptable.
Observe proper polarity when installing battery. Negative battery
terminal must be grounded.
Under no circumstances should a technician electrically probe the
processor at any point, other than at the connector terminals where the
harness attaches. Microprocessor components operate at different
voltage levels and at extremely low current levels. Improper use of
voltmeters, jumper wires, continuity testers, etc. could permanently
damage the processor.
Most electronic components are susceptible to damage caused by
electrical static discharge (ESD). In certain cases, the human body can
have enough static electricity to cause damage to the components by
touch. This is especially true of the integrated circuits found on the
microprocessor. Use proper board handling techniques.