9
COOLIUS Y50A
General Notions
Before re-introducing refrigerant into the system, the system itself must be evacuated and cleaned.
In order to be sure that the system is free of contaminating agents before introducing the refrigerant, all the
procedures described in this instruction manual must be followed.
Clean and maintain the machine regularly, especially when highly contaminated refrigerant is used: it
is extremely important that contamination from the previous operation is not transferred to subsequent
operations.
2.4 Safety devices
The machine is equipped with the safety devices required from the European Directives:
• Electric safety switch
• Safety valve
CAUTION!
Danger of injury due to manipulation.
DO NOT MODIFY THE SAFETY DEVICES.
2.5 Not condensable gas discharge
A not condensable gas discharge valve is installed to allow these gasses to be released.
The not condensable gas discharge valve could generate noises.
WARNING!
Risk of injury from escaping gases under high pressure.
Make sure that you never come in contact with the drain valve!
2.6 Ventilation Safety System
The machine is designed for the refrigerant 1234yf classified as flammable.
For this reason, the machine is equipped with a ventilation security system which has the task, in case of
leakage of the circuit, to avoid the formation of pockets of refrigerant.
It is forbidden to obstruct the inlet grid of the fan.
The user must monitor the efficiency of the ventilation security system and in case of anomaly of the same
must switch off the machine.
In addition, the internal vessel is equipped with a normally closed electric valve which is activated only when
the machine is ON.
2.7 The work environment
• The machine must be used in open environments or in places equipped with good ventilation (at least 4
changes of air per hour).
• The unit has been designed for use at a maximum altitude of 1000 m above sea level, within a tempera-
ture range of +10 and +49°C and with a maximum humidity of 50% at +40°C. Protect the machine from
direct sun rays, rain, etc…
•
Operate in sufficiently lit conditions.