R
R
R
e
e
e
f
f
f
r
r
r
i
i
i
g
g
g
e
e
e
r
r
r
a
a
a
t
t
t
i
i
i
n
n
n
g
g
g
C
C
C
i
i
i
r
r
r
c
c
c
u
u
u
i
i
i
t
t
t
(
(
(
C
C
C
o
o
o
m
m
m
p
p
p
o
o
o
n
n
n
e
e
e
n
n
n
t
t
t
s
s
s
)
)
)
Compressor
It sucks up the gases, generated by the evaporator by means of
a suction line and compresses them, increasing their
temperature and pressure.
Hot Gas Valve
It controls a circuit that starts from the compresso
r and arrives to
the evaporator, bypassing the condenser.
The opening of the valve permits to pipe the refrigerating fluid
(overheated after the compression) directly to the evaporator,
without letting it pass through the condenser thus warming up
the evaporator.
Condenser (Air/Water)
If ‘Water’, it is made up of a series of tubes, ref
rigerated by cold
water.
If ‘Air’, it is made up of a radiator, that exchanges heat with the
out-room, and is refrigerated by air, coming from a fan, run by
an electric motor.
Both of them carry away the heat, comprised in the gas that
comes out from the compressor, helping, in this way, the gas
liquefaction.
Refrigerating Filter + Capillar Tube
The refrigerant filter stops possible impurities and
the circuit
humidity.
The gas, in liquid status, goes to the evaporator through this
filter and the capillar tube.
Evaporator
It permits an optimal heat exchange with the water s
prayed on it
and produces ice by means of the water freezing.
It is made by a series of small tin plated cups, plunged into a
plastics support and welded to a copper coil, where the
refrigerating gas circulates.
Suction line
It permits the refrigerating gas circulation from th
e evaporator to
the compressor.
The suction line also controls and keeps constant the circulation
of the gas, coming out from the evaporator.
The liquid gas is trapped in a specific expansion boiler, that
prevents its arrival to the compressor.
To Next Page
Loading...