Domnick Hunter CRD0245, User Manual, Page: 3 / 33

CRD0245---0570
22
English
3 Installation
Y
For the correct application of the warranty terms, follow the
instructions given in the start -- up report, fill it in and send it back
to Seller.
3.1 Procedures
Install the dryer inside, in a clean area protected from direct at-
mospheric agents (including sunlight).
In places with fire hazard, provide for a suitable fire---extinguish-
ing system.
Y
Correctly connect the dryer to the compressed air inlet/out-
let connections.
Y
For correct installation, follow the instructions given in par.
8.2 and 8.3.
Y
Pre---filter element (for 3 micron filtration or better) must
be replaced at least once a year, or sooner as per manufacturer
recommendations.
3.2 Operating space
Leave a space of 1.5 m around the unit.
3.3 Versions
Air---cooled version (Ac)
Do not create cooling air recirculation situations. Do not obstruct
the ventilation grilles.
3.4 Tips
To prevent damage to the internal parts of the dryer and air com-
pressor, avoid installations where the surrounding air contains
solid and/or gaseous pollutants (e.g. sulphur, ammonia, chlorine
and installations in marine environments).
3.5 Electrical connection
Use approved cable in conformity with the local laws and regula-
tions (for minimum cable section, see par. 8.3).
Install a differential thermal magnetic circuit breaker with con-
tact opening distance of 3 mm ahead of the system (IDn = 0.3A)
(see the relevant current local regulations).
3.6 Condensate drain connection
Y
Make the connection to the draining system, avoiding con-
nection in a closed circuit shared by other pressurized discharge
lines. Check the correct flow of condensate discharges. Dispose
of all the condensate in conformity with current local environ-
mental regulations.
4 Commissioning
4.1 Preliminary checks
Before starting the dryer, make sure:
a) installation was carried out according that given in the section
3;
b) the air inlet valves are closed and that there is no air flow
through the dryer;
c) the power supply is correct;
4.2 Starting
a) Start the dryer before the air compressor;
b) switch the power on by turning the MAIN SWITCH
&
to
“I ON” (see par. 5.1 for the meaning of the LEDs).
c) Wait 5 minutes, then slowly open the air inlet valve;
d) slowly open the air outlet valve: the dryer is now drying.
4.3 Operation
a) Leave the dryer on during the entire period the air compres-
sor is working;
b) the dryer operates in automatic mode, therefore field settings
are not required;
c) Condensate draining is factory---set in TIMED mode, with
max. permissible opening equal to10 seconds.
The set time can be decreased (see par. 5.2 for details).
d) in the event of unforeseen excess air flows, by---pass to avoid
overloading the dryer.
e) avoid air inlet temperature fluctuations.
4.4 Stop
a) stop the dryer 2 minutes after the air compressor stops or in
any case after interruption of the air flow;
b) make sure compressed air does not enter the dryer when the
dryer is disconnected or if an alarm occurs.
c) Turn the MAIN SWITCH
&
to “O OFF” to switch the
power off.