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Item MDF-C2156VAN MDF-C2156VANC
Status monitor function
When ambient temperature is higher than approx. 35㷄 or lower
than approx. 0㷄, ‘Ambient temp is abnormal ‘ is displayed on LCD.
When power supply voltage is lower than approx.170V, ‘The power
supply is abnormal’ is displayed on LCD.
Data log function
zRecordable for approx. 4weeks in 12min. intervals.
zDoor delay time (more than 2min.) is recordable.
zTemperature for cascade sensor, filter sensor and AT sensor
are recordable.
zLog data is transmittable to PC with interface,
MTR-480.(Option)
Self diagnosis function
In the event of any failure among temp. sensor, filter sensor and
cascade sensor;
zError code and message are emitted.
zALARM lamp flashed, remote alarm contact turns over and
intermittent buzzer emit.
Key lock function
Key lock ‘0’: Key lock is released.
Key lock ‘1’: Key locks
L stage
When the temperature in cascade sensor is -34 㷄 or lower,
compressor (L) turns on.
When the temperature in cascade sensor is -12㷄 or higher,
compressor (L) turns off.
Overload relay and High pressure switch (L) are controlled.
Compressor
protection
H stage
When the temperature in filter sensor is +60 㷄 or higher,
compressor (H) turns off.
When the temperature in filter sensor is 10㷄 lower than ambient
temperature, compressor (H) turns on.
Back-up systems
zAutomatic liquid N
2
injection device
zTemp. setting range;
zIndication: BACK-UP (Green)
zBack-up test switch; 8R2021
zPower switch; Locker switch
zBack-up systems can be available for 48 hours by full charged
lead storage battery.
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