25
How to see and modify the set point (temperature and humidity)
1.
Push and immediately release the SET key: the display will show the Set point valueand the
correspondant set icon starts flashing;
2.
To change the Set value push the
or
arrows within 10s.
3.
To memorise the new set point value push the SET key again or wait 15s.
To start a manual defrost
1. Push the DEF key for more than 3 seconds and a manual defrost will start.
How to lock the keyboard
1.
Kee
and
keys pressed together for more than 3 the “POn” message will be displayed and
the keyboard is unlocked..
2.
The “POF” message will be displayed and the keyboard is locked. At this point it is only possible the
viewing of the set point or the MAX o Min temperature stored and to switch ON and OFF the light, the
auxiliary output and the instrument.
To unlock the keyboard
Keep the
and
keys pressed together for more than 3s.
ON/ OFF function
By pushing the ON/OFF key, the instrument shows “OFF” for 5 sec. and the ON/OFF LED is switched ON.
During the OFF status, all the relays are switched OFF and the regulations are stopped;
N.B. During the OFF status the LED4 button is lighted.
10.
WIRING
A wiring diagram, specific for the units of the RCV series, is enclosed with these use and maintenance
instructions.
11.
MAINTENANCE AND REPAIRS
Suitable maintenance is crucial for obtaining longer life, perfect working conditions and high
efficiency of the unit as well as for ensuring the safety features provided by the manufacturer.
12
ROUTINE MAINTENANCE
Good operation of the unit requires the condenser to be cleaned periodically (frequency of cleaning
depends on the environment where the unit is installed).
Turn off the unit and clean it by blowing air from the inside outwards. Should no air jet be available,
use a long-haired brush and work on the outside of the condenser.
In case of water-cooled condensers have the unit cleaned by a plumber with special descaling agents.
WARNING
Use safety gloves to protect your hands from possible cuts.
WARNING
Disconnect the unit before w orking on it.
12.2
Periodical maintenance
Periodically check wear condition of electrical contacts and remote switches; if necessary replace
them.
12.2
Service operations to be carried out by qualified technicians or by the manufacturer
