Operator Safety; Device Safety - TEXA KONFORT 744 Technical Manual

2.3 Operator Safety

The use of refrigerants may cause serious risks for your health.
Detailed medical and safety information can be obtained from the
manufacturers of the lubricants and refrigerants.
SUFFOCATION
Inhaling large amounts of R744 (carbon dioxide, CO2) refrigerant may be
harmful due to its low content of oxygen.
During the discharge, the R744 (carbon dioxide, CO2) refrigerant of the A/C
system is released directly into the air, constantly checking the degree of
concentration of carbon dioxide (CO2) in the working area thanks to a specific
sensor.
Through both visible and audible indications, the equipment warns that an
excessive level of concentration of carbon dioxide (CO2) has been reached and
automatically interrupts the activity in progress.
The discharge of the refrigerant resumes normally once the alarm has ceased,
when the level of carbon dioxide (CO2) has returned to normal.
Safety Precautions:
• Use the equipment in well-ventilated environments only.
• Avoid inhaling the refrigerant; use appropriate safety devices when required.
• If the equipment, through the specific alarm, warns that there is high level of
concentration of carbon dioxide (CO2), move away from it and aerate the
workspace for the time needed in order to bring the level of concentration of
carbon dioxide (C02) back within the safety level.
FREEZING AND FREEZE BURNS
Given their low condensation temperature, physical contact with the refrigerants
may cause freeze burns.
Safety Measures:
• Wear adequate safety glasses and gloves, that prevent direct contact with the
refrigerants.
• Make sure the refrigerant tank's valve is closed before moving it.
• Make sure the service pipes are not under pressure before disconnecting them.
BLINDNESS
Direct contact of the refrigerant with eyes may cause blindness.
Safety measures:
• Wear protective goggles!

2.4 Device Safety

• Use R744 (carbon dioxide, CO2) refrigerant only.
14