1 - Conventions
1.1 - Typographic conventions
The information contained in the black border below is of primary importance and requires your attention.
!
The information contained in the black border with the alert symbol below indicates an essential procedure for the health
and safety of people.
The parts of text preceded by a Danger indication relate to situations
The parts of text preceded by an Attention indication relate to situations
The parts of text preceded by a Caution indication relate to ordinary and/or extraordinary situations
The parts of text preceded by the Warning indication relate to technical characteristics of the unit or
refrigerant or to operating conditions of significant importance for the proper and safe operation of the unit
1.2 - List of abbreviations
Abbreviations
Meaning
NH3
Refrigerant ammonia
EN 378
European Standard SYSTEMS 378. Refrigeration and Heat pumps, Safety and Environmental Requirements
°C
Degrees Celsius
Bar
Pressure unit of measure
L
litre
Vol %
Percentage in Volume
IP
Protection Insulation
Ppm
Concentration expressed in parts per million
Hz
Hertz
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Danger
that can lead to serious injury or death if they are not avoided
Attention
which require the utmost attention of operators
Caution
for which extreme caution is required from operators
Warning