HMS INMBSHIT016O000, User Manual, Page: 23 / 24

Intesis
TM
Home Automation (WMP)
– Hitachi VRF
User Manual r1.0 EN
© HMS Industrial Networks S.L.U. - All rights reserved
This information is subject to change without notice
URL http
s
://www.intesis.com
23 / 24
43
Protection
Device
Supply Connection)
44
Activation of Low Pressure lncrease
Protection Device
Overload at Cooling, High Temperature at
Heating, Expansion Valve Locking (Loose
Connector)
45
Activation of High Pressure lncrease
Protection Device
Overload Operation (Clogging, Short-Pass),
Pipe Clogging, Excessive Refrigerant!, lnert
Gas Mixing
47
Activation of Low Pressure Decrease
Protection Device (Vacuum Operation
Protection)
lnsuffcient Refrigerant!, Refrigerant! Piping,
Clogging, Expansion Valve Locking at Open
Position (Loose Connector)
48 Activation of lnverter Overcurrent
Protection Device
Overload Operation, Compressor Failure
51 Sensor Abnormal lnverter Current! Sensor Current! Sensor Failure
53
lnverter
lnverter Error Signal Detection
Driver IC Error Signal Detection (Protection
for Overcurrent, Low Voltage, Short Circuit)
54 Abnormality of lnverter Fin
Temperature
Abnormal lnverter Fin Thermistor,
Heat Exchanger Clogging, Fan Motor
Failure
55
lnverter Failure lnverter PCB Failure
57
Fan Controller
Activation of Fan Controller Protection
Driver IC Error Signal Detection (Protection
for Overcurrent, Low Voltage, Short
Circuit), lnstantaneous Overcurrent
5A Abnormality of Fan Controller Fin
Temperature
Fin Thermistor Failure, Heat Exchanger
Clogging, Fan Motor Failure
5b Activation of Overcurrent Protection Fan Motor Failure
5C Abnormality of Fan Controller Sensor
Failure of Current! Sensor (lnstantaneous
Overcurrent,
lncrease of Fin Temperature, Low Voltage,
Earth Fault, Step-Out)
EE Compressor
Compressor Protection Alarm
(lt is cannot be reset from remote
Controller)
This alarm code appears when the
following alarms• occurs three times within
6 hours.
*02, 07, 08, 39, 43 to 45, 47
b1
Outdoor Unit
No. Setting
lncorrect Setting of Unit and
Refrigerant! Cycle No.
Over 64 Number is Set for Address or
Refrigerant! Cycle.
b5
lndoor Unit
No. Setting
lncorrect lndoor Unit Connection
Number Setting
More than 17 Non-Corresponding to Hi-
NET Units are Connected to One System.
2 or more Switch Box Units are connected