Icematic N140, Service Manual

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GB
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and non-condensables after compressor replacement.
Before proceeding with the refrigerant charge check
nameplate for specific refrigeration charge for individ-
ual cuber.
C) AIR COOLED CONDENSER REPLACEMENT
Remove the rear panel grid on N25S, N25L and N35S
models. On N45S÷N140 and upper models remove
the front panel grid and the side panels.
Remove the screws which attach the condenser to the
unit base.
Bleed off or blow the refrigerant from the system.
Unsolder the refrigerant lines from condenser and
remove it from the unit.
Install the replacement condenser following previous
steps in reverse.
Thoroughly evacuate the system to remove moisture
and non condensables; then proceed with the charge
of FREON R134a.
D) DRIER REPLACEMENT
Remove the rear panel grid on N25S, N25L and N35S
Models. On N45S÷N140 models remove the side
panel grids.
Bleed off or blow the refrigerant charge through the
Henrytype valve.
Unsolder the capillary tube from one end of the drier
and the refrigerant line from the other end.
To install a replacement drier remove factory seals.
Thoroughly evacuate the refrigerant system.
Charge the system with refrigerant by weight (see
nameplate) and check for leaks.
E) FAN MOTOR REPLACEMENT
Remove the rear panel grid on N25S, N25L and N35S
models. On N45S÷N140 models remove the side
panel grids.
Trace the electric wire leads of fan motor and discon-
nect the same.
Remove the bolts securing the fan motor assembly to
the cabinet base and the remove the assembly.
Install the replacement fan motor following previous
steps in reverse anc check that the fan blade do not
touch any sourface and move freely.
F) EVAPORATOR ASSEMBLY REPLACEMENT
a. Remove the top cover.
b. Remove six screws securing the paddle shaft supports
(two) and the paddle motor support; then remove the
paddle motor/paddle shaft/supports assembly.
c. Remove the bolts securing the evaporator supports
(two) to the cabinet.
d. Sideways remove the evaporator supports.
e. Unsolder the capillary tube, the hot gas solenoid valve
tube and the suction line.
f. To install the replacement evaporator assembly follow
previous steps in reverse.
g. Install the replacement drier; thoroughly evacuate the
system and proceed with the refrigerant charge.
G) WATER RESERVOIR/TILTING LEVER/SUPPORT
ASSEMBLY REPLACEMENT
a. Remove screws and top cover.
b. Remove the gear motor/paddle shaft/support assem-
bly.
c. Remove the screws securing the evaporator supports
(two).
d. Sideways remove one evaporator support support as
well as one reservoir gudgeon support.
e. Slightly lift the evaporator and remove the water reser-
voir assembly.
f. To install the replacement water reservoir assembly
follow previous steps in reserve.
H) WATER INLET ELECTROVALVE REPLACEMENT
a. Remove the rear panel.
b. Check that water supply is closed.
c. Disconnect the water supply connection pipe from the
valve and that of the electrovalve from the reservoir.
d. Break contact from the electrovalve and remove the
screws (two) securing the electrovalve to the relevant
frame.
e. To install the replacement electrovalve follow previous
steps in reverse; before installing the water supply pipe
check that the gasket is not defective.
I. PADDLE MOTOR REPLACEMENT
a. Remove the top cover.
b. Remove six screws securing the paddle shaft supports
(two) and the paddle motor support.