Monitor Of Freezer Status - NuAire NU-9728GA Instruction Manual

MONITOR OF FREEZER STATUS

The freezer has a function to monitor the running status of the unit as shown in table 8 below. This is to
notice the running status getting worse (not failure).
1. The status monitor lamp is lit when one of the running status shown in table 6 is detected.
2. The S code (--X, X: 1 to 3) is displayed on the temperature indicator by pressing status key (STATUS)
when the status monitor is lit.
3. Pressing the status key (STATUS) again returns to current chamber temperature on the temperature
indicator. (The indication returns to the chamber temperature display automatically when no key is
operated for 90 seconds.)
Table 8. Monitor of running status
Kind of
function
Notice of When the ambient
abnormal temp. is over approx.
ambient 35
temperature about 0
When a power
Notice of low supply voltage
voltage decreased in about
less than 98 V.
When the running
Notice of
rate of refrigerating
overload
circuit is higher than
condition
usual.
Note:
• The S code displayed on the temperature indicator is changed every few seconds if two or three status
shown in the above table are detected at the same time. （--1 ⇒ --2 ⇒ --3 ⇒ --1 repeated）
• The monitoring function does not trigger a buzzer or conduct a safety operation.
• In the case of multiple indication of S code, follow the remedy for each status.
Status
Status monitor
lamp (STATUS)
o
C or lower than lights.
o
C. "--1" is displayed.
Status monitor
lamp (STATUS)
lights.
"--2" is displayed.
Status monitor
lamp (STATUS)
lights.
"--3" is displayed.
If this status
Indication
continues
Decrease of cooling
performance or
durability of
refrigerating circuit.
Abnormal heat at
power supply outlet
or degrade of
starting performance
of refrigerating
circuit
Decrease of cooling
performance or
durability of
refrigerating circuit.
20
Remedy
Examination is
air-conditioning of
installed site.
Use dedicated
power source.
1. This is likely to
happen when a
large amount of
materials is stored.
2. Check ambient
temp., voltage, and
sealing of
outer/inner door.