In order to use the compressor in complete safety read the safety standards given in section 1.3. before reading this section.
6.1 p
reparing to use tHe dryer
d
escrizione
Functional description
Drying systems with refrigeration cycle have been designed for a cost effective elimination, with minimal overall dimensions, of the
condensate contained in compressed air by cooling it down to approximately + 3°C.
The operation principle of the dryers described in this manual is shown in the air and refrigeration circuit diagrams (attachment A).
The air delivered to the services is virtually humidity free, and the condensate collected in the separator is discharged through ap-
propriate draining devices. In order to limit the size of the machine and to avoid condensation on the external surface of the tubing,
before exiting the dryer, treated air is counter current pre-heated by the air entering the system.
The dryer comes provided with all the control, safety and adjustment devices, therefore no auxiliary devices are needed.
A system overload not exceeding the maximum operative limits can worsen the operational performances of the dryer (high dew
point), but it will not affect its safety.
The electric diagram (attachment B) shows the minimum protection degree IP 42. The user must provide the dryer with a line pro-
tection and a ground terminal.
u
se oF tHe macHine in saFe conditions
This system has been designed and manufactured in compliance with the European safety directive in force, therefore
any installation, use and maintenance operations must be performed respecting the instructions contained in this manual.
Any installation, use and maintenance operation requiring to access the internal parts of the dryer must be performed by
qualified personnel.
The manufacturer will not be liable in case of uses different or nor complying with those foreseen in this manual.
6.2 F
uctional diagram
1 Compressor
2 Condenser
3 Ventilator Motor
4 Air-air preexchanger
5 Evaporator
6 Condensate drain
8 Dehydrator filter
12 Condensate separator
13 Capillary tube
6.3 c
ontrol panel
The machines belonging to this series are provided with
an electronic system for parameters modification, so eventual
reset operations can be performed by means of the digital
panel located on the front of the dryer.
The control panel illustrated in PIC.1 is composed of 5
keys (ON/OFF, TEST, SET, DOWN e UP) and a 3 digit di-
splay, with three signalling LEDs indicated by icons.
d
isplay
On
unit is ON with low load;
On ---
unit is ON with normal load;
On ---
unit is ON with normal-high load;
---
On ---
the unit is ON with high load;
---
---
6. d
ryer
16