Fral FACSW22.1, Руководство по эксплуатации и обслуживанию, Страница: 25 / 57

UK
M.FACSW22.1-06 Multilanguage 26/06/2017
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If the room temperature is lower than the set, machine remains in ventilation but it does not make cool (the
compressor remains off and only the fan is on). Led RUN is off. If room temperature is lower than 18°C,
automatic defrost system can star working; periodically the internal unit fan stops and the two refrigerant
electro-valves invert their position. Thus, hot gas passes in the iced evaporator, and the ice falls down as
water. Display shows “dEFr”.
After every defrost cycle, machine works regardless environment temperature for 90 seconds in order to move
the air in the room. At the end of these 90 seconds, PCB check thermostat state.
5. PERIODICAL MAINTENANCE
Two maintenance operations are very important:
Cleaning of inside unit air filter
, at least monthly, and cleaning of outside unit heat exchanger.
The filter should be cleaned periodically (normally every month ), but in dusty rooms it should be cleaned
more often. Remember that when the filter is dirty, the air circulation and, consequently, the machine
performance is reduced.
The inside unit’s filter can be cleaned under water flow from a faucet; to remove the filter from the machine, it
needs to take away the lower front grille pushing it upwards and pulling it far from the machine.
For outside unit heat exchanger, cleaning must be done every time that some dust may be seen among the
fins. This operation should be done by an air compressor, pushing the air from outside to the inside of the unit.
When the machine is not used for a period more than a month verificy, with
a screwdriver, that the pump is not blocked. During this operation be sure
that the electric supply is disconnected.