Ferroli OMNIA HYBRID C, Installation, Maintenance And User Manual

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76
EN
Cod. 3541T090 - Rev. 00 - 06/2019
ALARMS
Error
code
Malfunction or protection Failure cause and Corrective action
EA
Probe error Tp
(compressor discharge)
1. The Th sensor connector is loosen. Re connect it.
2.The Th sensor connector is wet or there is water in. Remove the water, make the connector dry. Add waterproof
adhesive.
3. The Th sensor failure, change a new sensor.
Tp intervention <15 ° C for 5 min, automatic reset Th> 27 ° C
ED
Tw_in probe error
(evaporator water inlet)
1. Check the electrical connection (reset if incorrect).
2. The probe is faulty, replace the probe.
3. Replace the hydronic module control board.
Th intervention <15 ° C for 15 min, automatic reset Th> 27 ° C
EE
Eprom error hydronic modu-
le control board
1. Replace the faulty card.
H0
Communication error betwe-
en PCB board and idronic
control board
1.wire doesn’t connect between indoor unit and outdoor unit. connect the wire.
2.Communication wire sequence is not right. Reconnect the wire in the right sequence.
3. Whether there is a high magnetic field or high power interfere, such as lifts, large power transformers, etc.. To
add a barrier to protect the unit or to move the unit to the other place.
H1
Communication error betwe-
en PCB A and PCB B
1. Whether there is power connected to the PCB and driven board. Check the PCB indicator light is on or off. If
Light is off, reconnect the power supply wire.
2.if light is on, check the wire connection between the main PCB and driven PCB, if the wire loosen or broken,
reconnect the wire or change a new wire.
3. Replace a new main PCB and driven board in turn.
H2
The plate heat exchanger
refrigerant inlet (liquid pipe)
temperature sensor(T2)
error.
1.The T2 sensor connector is loosen. Re connect it.
2.The T2 sensor connector is wet or there is water in. Remove the water, make the connector dry. Add waterproof
adhesive
3. The T2 sensor failure, change a new sensor.
H3
The plate heat exchanger
refrigerant outlet (gas pipe)
temperature sensor (T2B
) error.
1. The T2B sensor connector is loosen. Re connect it.
2.The T2B sensor connector is wet or there is water in. Remove the water, make the connector dry. Add water-
proof adhesive
3. The T2B sensor failure, change a new sensor.
H4 Three times P6 protect Same to P6
H5
The indoor temperature
sensor(Ta) error
1. The Ta senor is in the interface;
2. The Ta sensor failure change a new sensor or change a new interface.
H6 The DC fan failure
1. Strong wind or typhoon below toward to the fan, to make the fan running in the opposite direction. Change the
unit direction or make shelter to avoid typhoon below to the fan.
2.fan motor is broken, change a new fan motor.
H7
Main supply voltage circuit
voltage out of limits
1. Whether the power supply input is in the available range.
2. Power off and power on for several times rapidly in short time. Remain the unit power off for more than 3
minutes than power on.
3. the circuit defect part of Main control board is defective. Replace a new Main PCB.
H8 Pressure sensor failure Pe
1. Pressure sensor connector is loosen, reconnect it.
2. Pressure sensor failure. change a new sensor.
H9
The system outlet water
temperature sensor T1B
failure.
1. The T1B sensor connector is loosen. Reconnect it.
2.The T1B sensor connector is wet or there is water in. remove the water, make the connector dry. add waterpro-
of adhesive
3. The T1B sensor failure, change a new sensor.
HA
The plate heat exchanger
water outlet temperature
sensor (Twout) error
1. The Twout sensor connector is loosen. Reconnect it.
2.The Twout sensor connector is wet or there is water in. remove the water, make the connector dry. add water-
proof adhesive
3. The Twout sensor failure, change a new sensor.
HE
The condenser refrigerant
outlet temperature is too
high in heating mode for
more than 10 minutes.
The outside outdoor air temperature is too high(higher than 30°C , the unit still operate heat mode. close the heat
mode when the outdoor air temperature is higher than 30°C
HF PCB B EEprom failure
1. The EEprom parameter is error, rewrite the EEprom data.
2. EEprom chip part is broken, change a new EEprom chip part.
3. Main PCB is broken, change a new PCB.
HH
H6 displayed 10 times in 2
hours
Refer to H6
P3
Compressor overcurrent
protection
1.The same reason to P1.
2. Power supply voltage of the unit is low, increase the power voltage to the required range.
I> 20A for mod. 5-7-9 kW (single phase)
I> 31A for mod. 10-12-14-16 kW (single phase)
I> 15A for mod. 12T-14T-16T kW (three phase)