Wiring; Maintenance And Repairs; Routine Maintenance; Periodical Maintenance - Zanotti ZN Serie Manual De Uso

ATTENTI ON
M edium tem perature range :
Low tem perature range :
ATTENTI ON
24 hours after starting check evaporator state. I f ice has form ed, defrost frequency
should be increased. I n low tem perature units the evaporator condition should be
checked every w eek during the first m onth of operation.
10. W iring
A wiring diagram, specific for the units of the ZN series, is enclosed with these use and maintenance
instructions.
11. M aintenance 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 m aintenance
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.
W ARN I NG
Use safety gloves to protect your hands from possible cuts.
W ARN I NG
Disconnect the unit before w ork ing on it.
12.1 P eriodical m aintenance
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 m anufacturer
Following operations shall be carried out by qualified technicians or by the manufacturer exclusively. Under
no circumstances the user is allowed to:
+10 -5°C
-15 -25°C
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.
•
28