Technoblock SV Serie Manual De Uso Y Manutención página 24

ATTENTION
24 hours after starting check evaporator state. If ice has formed, defrost frequency should
be increased. In low temperature units the evaporator condition should be checked every
week during the first month of operation.
9.2 How to Lock / Unlock the keyboard
Lock
• Keep pressed for more than 3'' the
• The (POF) message will be displayed and the keyboard will be locked. At this point it will be possible
only to see the set point or the Max o Min temperature stored.
• If a key is pressed more than 3'' the (POF) message will be displayed.
Unlock
• Keep pressed together for more 3'' the
displayed.
10. Wiring
A wiring diagram, specific for the units of the SV 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 working on it.
12.1 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
Following operations shall be carried out by qualified technicians or by the manufacturer exclusively. Under
no circumstances the user is allowed to:
and
•
replace electrical components
•
work on the electric equipment
•
repair mechanical parts
•
work on the refrigerating system
•
work on the control panel, ON/OFF and emergency switches
•
work on protection and safety devices.
keys.
and keys, till the (Pon) message will be
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