Description Of The Unit; Operation; Handling - Zanotti ZN Serie Manual De Uso

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Description of the unit

The ZN series includes air-cooled condensing units built on the basis of the single-block principle.
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Operation

ZN single blocks are compression units where cold is produced by vaporizing a liquid refrigerant (HFC
type) at low pressure in a heat exchanger (evaporator). The resulting vapour is brought again into the liquid
state by mechanical compression at a higher pressure, followed by cooling in another heat exchanger
(condenser).
The compressor is hermetic, with reciprocating motion, supplied with single-phase or three-phase power.
Defrost takes place automatically in pre-set cycles, by means of heaters; manual defrost is also possible.
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Handling

The unit can be handled by lifting and transport means.
UNSCREW THE FIXING SCREWS TO REMOVE CRATING FROM THE UNIT. (fig. A).
W ARN I NG
M ake sure that no one is in transit in the operating area of the lifting/ transport m eans
to prevent any possible accidents to people.
I f the unit is in a w ooden case or crate, sling the packing properly before handling it.
Lifting speed shall be such as not to m ak e the packed unit oscillate dangerously and
possibly fall.
They consist of:
1
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1. a condensing unit placed outside the cold room;
2. an evaporator installed inside the room;
3. an electric control panel placed on the condensing unit;
2
Fig. A
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