Arctiko CRYO 170, Руководство по эксплуатации, Страница: 24 / 40

23
LN2 hose
SV5
Small sow
Large sow
Hose (3)
The temperature under which an automatic cooling auxiliary device operates is set as -130°C.
When the inner temperature of a freezer reaches above a setting temperature, a magnetic valve
opens and LN2 sprays into a freezer.
For installation of the LN2 cylinder, ask an LN2 technician,
coursed to the high pressure.
If there is garbage or metal powder in a connecting hose or connecting
metal, a magnetic valve can be clogged and LN2 is leaked or a magnetic
valve becomes defective. Ask a high-pressure gas expert to be extra careful
of garbage or metal powder for installation.
2. Operation check
• When the connection to a cylinder is done, start operation and cool the inner temperature of a
freezer down below -130
°
C.
• If the inner temperature of a freezer reaches below -130
°
C, turn on AL-1 switch and BACKUP
SYSTEM switch.
• To check LN2 spray, turn on BACKUP SYSTEM switch and check if LN2 sprays only
while BAT CHECK button is pressed.
•
If a user opens a door upon LN2 spray, the injection stops temporarily as per the operation
of the door switch, which are located on the rear side of the unit. When the door is closed
again, the injection of LN2 will start again.
Ensure to use a cylinder stand for cylinder installation, or use after fixing a
cylinder firmly. Otherwise, a user may be injured by a fall or an unexpected
accident may occur, because of cut connecting hose and scattered LN2.