Hitachi RAS-070HNBRMQ2 - Safety and Control Device Setting

51 Problem with Inverter Current Sensor Current Sensor Failure
53 Inverter Error Signal Detection
Driver IC Error Signal Detection (Protection for Overcurrent,
Low Voltage, Short Circuit)
54 Abnormality of Inverter Fin Temperature
Abnormal Inverter Fin Thermistor,
Heat Exchanger Clogging, Fan Motor Failure
55 Inverter Failure Inverter PCB Failure
57 Activation of Fan Controller Protection
Driver IC Error Signal Detection (Protection for Overcurrent,
Low Voltage, Short Circuit), Instantaneous Overcurrent
b1
Incorrect Outdoor Unit Address No. or Unit
Number Setting
Over 64 Number is Set for Address or Refrigerant Cycle.
b5
Incorrect Indoor Unit Connection No.
Setting
More than 18, Non-Corresponding to H-LINK II Units are
Connected to One System.
EE
Compressor Protection Alarm (It is cannot
be reset from remote Controller)
If the alarms (02; 07; 08; 43; 44; 45; 47) occur three times
within 6 hours, the alarm code appears.
When the alarm codes in the brackets ha
ve appeared, it means that the malfunctions are from the indoor unit.
40
8. Safety and Control Device Setting
The compressor is protected by the following devices and their combinations.
(1) High Pressure Switch: This switch cuts out the operation of the compressor when the discharge
pressure exceeds the setting.
(2) Crankcase Heater: This band type heater protects against oil foaming during cold starting, as it is
energized while the compressor is stopped.
Model
070~120
High Pressure Switch
Automatic Reset, Non-Adjustable
MPa 4.15
-0.05
-0.15
Cut-Out
Cut-In
MPa
3.2±0.15
80
CCP Timer
Setting Time
Min
Non-Adjustable
3
Crankcase Heater W