Functional Diagram; Control Panel - Fiac SSA 410 Manual De Uso Y Mantenimiento

REFRIGERATOR CYCLE AIR DRIER
Model SSA compressors tiay be equipped with a refrigerator cycle air drier. All drier models are 230V/50/1 powered with a circuit
independent' of the compressor's and range from a minimum capacity of 350 It/min to a maximum of 850 It/min. Maximum working
pressure 16 bar. Direct expansion without glicol. Separator and automatic water trap.
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
appropriate 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 protection and a ground terminal.
Use 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.

FUNCTIONAL DIAGRAM

CONTROL 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 display, with three
signalling LEDs indicated by icons.
1
2
3
4
5
6
8
12
13
21
Compressor
Condenser
Ventilator Motor
Air-air preexchanger
Evaporator
Condensate drain
Dehydrator filter
Condensate separator
Capillary tube
GB