Arctiko CRYO 170, Operating Instructions Manual, Page: 31 / 40

GB
30
Fan-Motor: UF25GC23BTH (230V Ball type) Ball=bearing
(Fulltech Company)
As to the alarm buzzer, it will sound when the piping
temperature r70°C(± 5°C) on the bimetal
thermometer attached to the piping of high pressure (the
front piping with the front gallery of a Compressor room
detached).
3) Freezer overload :
Where a freezer does not work due to a certain reason, a
thermal relay of a magnetic switch for freezer operation will
run.
Check the inside of a Compressor room and a freezer.
If there is no anomaly in a freezer, a user can resume
operation by pressing the protruding thermal relay switch.
13. The operation sound will change
about 1 min after the start of
operation.
Movement of the bypass circuit for unblocking.
The bypass circuit for unblocking is mounted for the following
reason.
Hydrocarbon refrigerants melting in freezer oil will boil being
exposed to high temperature and high pressure upon the start
of operation. The refrigerant melting in oil flies actively and
moves into the high-pressure pipe. At this time, oil (high
concentration) moves into a high-pressure pipe together and
passes a capillary, which may cause blocking/clogging. To
prevent this, place a bypass between BC (block condenser)
and driver and install SV. Upon the start of operation, SV
opens simultaneously and the refrigerant moves to the low
pressure and returns to a freezer via SV. By running this
move for 30 sec to 1 min, oil will be blended well with
refrigerants, which decreases blocking/clogging. The
operation sound will change once SV is closed.