High Temp. Alarm; Low Temp. Alarm; Door Alarm; Filter Alarm - Sanyo MDF-C2156VAN Service Manual

Ultra-low temperature freezer
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(2)

High temp. alarm

When internal temperature is higher than high temperature alarm setting value, alarm
lamp flashes, intermittent buzzer beeps with 15 minutes of delay and remote alarm
activates.
Press BUZZER key to stop buzzer beeping. However, buzzer beeps again after Ring
Back time is passed. Remote alarm is still activated during this period.
High temp. alarm setting range: SV+5
Ring Back time setting range: 1 ~ 99 minutes (Initial: 30 minutes)
* Note) During pull-down, both buzzer and remote alarm don't activate.
(3)

Low temp. alarm

When internal temperature is lower than low temperature alarm setting value, alarm
lamp flashes, intermittent buzzer beeps with 15 minutes of delay and remote alarm
activates.
Press BUZZER key to stop buzzer beeping, however, buzzer beeps again after Ring
Back time is passed. Remote alarm is still activated during this period.
Low temp. alarm setting range: SV-5
Ring Back time setting range: 1 ~ 99 minutes (Initial: 30 minutes)
* Note) During pull-down, both buzzer and remote alarm don't activate.
(4)

Door alarm

When door is open, intermittent buzzer beeps and 'DOOR' at 'TopScreen' flashes.
Shut door or press BUZZER key to stop buzzer beeping. Remote alarm does not
activate during this period.
Door alarm setting range: 1 ~ 15 minutes (Initial: 2 minutes)
(5)

Filter alarm

When temperature in filter sensor is equal or higher than +48.0 , intermittent buzzer
beeps and 'FILTER' at 'TopScreen' flashes. Remote alarm does not activate.
Press BUZZER key to stop buzzer beeping. (Buzzer does not recover automatically)
When temperature in filter sensor is equal or lower than +43.0 , buzzer stops beeping
and indication is disappeared.
If you set buzzer does not activate, buzzer does not beep.
(6)
Remote alarm
Remote alarm is output from the terminal.
Contact status 'Normal': 'Open' between COM. and N.O.
Contact status 'Abnormal': 'Open' between COM. and N.C.
*Note) When remote alarm is OFF position at Default setting screen, remote alarm
does not activate. (Initial: 1 (=ON))
~ +20
* 0 minutes = Alarm does not recover.
~ -20
* 0 minutes = Alarm does not recover.
'Close' between COM. and N.C.
'Close' between COM. and N.O.
23
(Initial: +10 )
(Initial: -10 )

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