Innova 5 - Alarms Shown on the Control Panel of the External Unit

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Alarm Description
Correlated
variables
Cause Solution
ALARM 013
Plant temperature probe
malfunction
PT1
Probe disconnected, faulty or
abnormal value
Check the connection and if necessary replace the probe
ALARM 014 Low water temperature PT1
The minimum frost protection
temperature alarm has triggered.
The temperature of the exiting
water dropped below 5°C.
Check that:
• There is nothing to prevent good water circulation in the
system (air, partially closed valves, clogged mains water
lter, etc.)
• Check that the thermal gradient between the plant ow
and return is between 4÷7 °C by querying parameter
PT1
• Set a lower circulator speed if the thermal gradient is
lower than 4 °C
• If the thermal gradient is greater than 7 °C, check that
all the valves on the plant are open and if necessary
add an external pump to increase the water ow rate or
insert a hydraulic separator
ALARM 015 Low water temperature PT6
The minimum frost protection
temperature alarm has triggered.
The temperature of the exiting
water dropped below 5°C.
Check that:
• There is nothing to prevent good water circulation in the
system (air, partially closed valves, clogged mains water
lter, etc.)
• Check that the thermal gradient between the plant ow
and return is between 4÷7 °C by querying parameter
PT6
• Set a lower circulator speed if the thermal gradient is
lower than 4 °C
• If the thermal gradient is greater than 7 °C, check that
all the valves on the plant are open and if necessary
add an external pump to increase the water ow rate or
insert a hydraulic separator
-
Noise and turbulence is coming
from the hydraulic circuit
- There is air inside the circuit
• Vent the air via the external devices and the vent on the
buer tank of the machine and bring the circuit to the
correct pressure
• Check that the suction pressure (hydraulic circuit return)
with the pump on is higher than 0.6 bar.
- Unsatisfactory cooling or heating -
• The setpoint set on the
controller is too low (heating
mode) or too high (cooling
mode)
• The control panel is regulated
to too high a temperature
for cooling (or too low for
heating)
• Open doors and/or windows
• Reset according to needs
• Adjust the temperature to a suitable value
• Close them to prevent air from entering
1. Note:
2. In general, alarm resetting is automatic when the activation condition is
established again.
3. The activation or reset conditions must remain for a preset time (e.g. 30 s)
before the alarm is activated or deactivated on the display. The duration
of the preset time depends on the alarm type.
4. If the alarm trips multiple times in a given time (e.g. 3 times in 1 hour), it
must be reset manually by the Technical Service Centre.
6�5 Alarms shown on the control panel of the external unit
The control panel of the outdoor unit displays the alarms
that occur during operation of the heat pump.
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If the PdC alarm appears on the user interface, refer to
the Technical Service Centre.