AERMEC HMI-1 User Manual

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7.3 VIEWING THE ACTIVE ERRORS ON THE UNIT ERROR
Error view (1)
These pages display the current errors and alarms active on the unit. After accessing
the "Error" function, you can browse any pages using the buttons on the left and
right sides of the window.
 Note:
1. This function does not allow current errors to be reset; it only displays them;
2. There may be several pages, depending on the number of errors (up to 5 errors
per page).
If error or alarm conditions arise during normal operation of the unit, faults will be
indicated on the display by icons (
).
Possible errors (with relative codes) are as follows:
Code Label Error Description
F4
Ambient sensor Indicates a malfunction of the external air sensor
D6
Ambient sensor Indicates a malfunction of defrosting temperature sensor on the outdoor unit
F7
Discharge sensor Indicates a malfunction of the temperature sensor on compressor delivery
F5
Suction sensor Indicates a malfunction of the temperature sensor on compressor intake
EF
Outdoor fan Indicates a malfunction aecting the fan on the outdoor unit
Fc
HI-pre. sens. Indicates a fault on the high pressure transducer
E1
High pressure Indicates abnormal pressure on the high pressure side of the cooling circuit
E3
Low pressure Indicates abnormal pressure on the low pressure side of the cooling circuit
E4
Hi-discharge Indicates an abnormal temperature on the compressor discharge
c5 Capacity DIP Indicates a DIP SWITCH positioning error on the outdoor unit board
E6
ODU-IDU Com. Indicates a serial communication error between the AP1 and AP2 cards on the outdoor unit
F2
Econ. in sens. Indicates a malfunction of the temperature sensor at the economizer input
F6
Econ. out sens. Indicates a malfunction of the temperature sensor at the economizer output
Ec
HP-Water Switch Indicates an alarm generated by the ow switch at the input to the outdoor unit (water side)
PL
DC under vol. Indicates an error caused by low voltage on the DC bus or an error caused by a voltage drop
PH
DC over vol. Indicates an error caused by high voltage on the DC bus
PA
AC curr. pro. Indicates an abnormal value for AC current (AC protection)
H5
IPM defective Indicates an operating fault on the IPM module (inverter power module)
Hc
PFC defective Indicates an operating fault on the PFC module (power correction module)
Lc
Start failure Indicates a fault in the unit's start-up phase
Ld
Phase loss Indicates a problem associated with the loss or unbalance of voltage phases
P0
Driver reset Indicates a reset made on the unit's drivers
P5
Com. over cur. Indicates that an overcurrent on the compressor has been detected
Pc
Current sen. Indicates an abnormal value for the current sensor
H7
Desynchronize Indicates that the compressor is out of sync
P8
Overtemp. mod. Indicates that an overtemperature has been detected on a component (heatsink, IPM or PFC)
P7
T mod. sensor Indicates that an error has been detected on the temperature sensor for a component (heatsink, IPM or PFC)
Pu
Charge circuit Indicates an error on the charging circuit
PP
AC voltage Indicates a power supply error
Pd
Sensor con. Indicates a protection status for the sensor monitoring the phases
F9
Temp HELW Indicates a fault on the temperature sensor at heat exchanger plate outlet (water side)
DH
Temp AHLW
Indicates a fault on the temperature sensor located downstream of the 3-way valve if the installation
includes an auxiliary electrical resistance or a supplementary heat source
--
Temp HEEW Indicates a fault on the temperature sensor at heat exchanger plate inlet (water side)
F1
Temp RLL Indicates an error aecting the temperature sensor on the cooling circuit uid line
F0
Temp RGL Indicates an error aecting the temperature sensor on the cooling circuit gas line
FE
Tank sensor Indicates a fault on the temperature sensor located on the accessory DHW storage tank
F3
T-remote room Indicates a malfunction of the ambient air sensor supplied with the unit
E6
ODU Com. Indicates a serial communication error between the display and the outdoor unit
c5 Jumper cap error Jumper cap error
EH
Auxi. heater 1 Indicates a malfunction aecting the auxiliary resistance 1 (KM1)
EH
Auxi. heater 2 Indicates a malfunction aecting the auxiliary resistance 2 (KM2)
EH
Auxi. WTH Indicates a malfunction aecting the resistance placed in the accessory DHW storage tank (KM3)
P6
Drive-main com. Indicates a communication error with the unit's drivers
E6
IDU Com. Indicates a serial communication error between the AP1 cards and ush panel (display)
U7
4-way valve Indicates a 4-way valve fault

AERMEC HMI-1 Specifications

General

Brand	AERMEC
Model	HMI-1
Category	Controller
Language	English