20
REMOTE ALARM TERMINAL
The terminal of the remote alarm is installed at the lower right side of the unit. The alarm is outputted
from this terminal. Contact capacity is DC 30 V, 2 A.
Contact output:
between COM. and N.O.
between COM. and N.C.
At
normal
Open
Close
At
abnormal
Close
Open
Note:
• The buzzer is silenced by pressing buzzer stop key (BUZZER) on the control panel during alarm
condition. (A remote alarm is continuing the operation.)
The buzzer will be activated again after certain suspension if the alarm condition is continued.
• The alarm is actuated when the power cord is disconnected from the outlet or the power switch is OFF.
AIR INTAKE PORT
When the outer door is closed and opened soon, the outer door
sometimes does not open.
The warm air which went into the chamber is cooled down rapidly,
and this is because air inside the chamber contracted.
Follow the procedure below when the outer door is closed and
opened soon:
1.
Turn the cap on the left side counterclockwise about two laps.
(Or remove the cap.)
2.
Allow about twenty seconds before open the outer door.
3.
Close (or replace) the cap when the door operation is
completed.
The outer door may not open in the above method when there are frost and ice in the air intake port. In
that case, open the cap and check the frost inside the air intake port. Remove the frost inside the air
intake port with the enclosed "stick for air intake port cleaning" when the excessive frost is built in the air
intake port. Clean the air intake port every month even when there is no frost in the air intake port.
Refer to page 25 for the cleaning.
CAUTION
For removing the frost in the air intake port, do not use a tool with sharp edge such as a knife or a screw
driver.
Replace the cap when the air intake port is not used. Improper replacement may cause rise of chamber
temperature or condensation around the air intake port.
Use a twisted sealed wire for the connection.
Type UL2343, UL2448, UL2464, UL2552, UL 2623
Length: 30 m max.
Cap
Two laps
