Instruction Book
104
9828 0934 73
6
Maintenance
6.1 Preventive maintenance schedule
The dryers contain refrigerant HFC.
When the automatic operation LED is lit, starting and stopping of the dryer are controlled
automatically.
If the dryer start/stop timer is active, the dryer may start automatically, even if it was stopped
manually.
Safety precautions
When handling refrigerant R410a, all applicable safety precautions must be observed. The following points
are stressed:
•
Contact of refrigerant wit
•
h the skin will cause freezing. Special gloves must be worn and, if there is contact with the skin, the
skin should be rinsed with water. On no account may clothing be removed.
•
Fluid refrigerant will also cause freezing of the eyes; therefore, safety glasses must be worn.
•
Refrigerant R410a is poisonous. Do not inhale refrigerant vapors. Check that the working area is
adequately ventilated.
When removing the side panels of the dryer, be aware that internal elements such as the pipes can reach
a temperature of 120 ˚C (248 ˚F). Therefore, wait until the dryer has cooled down before removing the side
panels.
Before starting any maintenance or repairs, switch off the voltage. Isolate the dryer from the air net and
depressurize by opening valve (5) on inlet collector (6).
Valve on the inlet collector (air-cooled)
Local legislation
Local legislation may impose that:
•
Work on the refrigerant circuit of the cooling dryer or on any equipment which influences its
function must be carried out by an authorized control body.
•
The installation should be checked once a year by an authorized control body.
