Checks, Regulations And Adjustments; Starting; Wiring; Maintenance And Repairs - Zanotti ZM Serie Manual De Uso Y Manutención

WARNING
Loads connected to the normally closed contacts of the relays are always
supplied and under voltage, even if the instrument is in stand by mode.
9

Checks, regulations and adjustments

9.1

Starting

ATTENTION
Medium temperature range :
Low temperature range :
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.
10.

Wiring

A wiring diagram, specific for the units of the ZM 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.
Before turning the unit on, check that:
- locking screws are tight
- electrical connections have been carried out correctly.
In the event that the unit has been opened:
- no tools were left inside
- assembly is correct
- there are no gas leaks
- front cover is secured correctly
Before starting the unit act as follows:
Connect the unit to the mains. The luminous switch lights up
-
If the unit has a preheating cycle, leave it in this condition for at least 3 hours.
-
If the unit has a voltage monitor, leave it in this condition for at least 7 minutes to
-
have the counting phase carried out
Switch on the control by pressing key 0/1.
-
Set the required cold room temperature.
-
+10 -5°C
-15 -25°C
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