19
User manual – Controller CP Touch
Table of notifications (blue triangle)
Set orientation
(only applies to DUPLEX
Flexi and DUPLEX
ECH/ECVH)
The unit’s orientation is not
set, i.e. it is not determined
which fan is the supply fan
and which is the extraction
fan.
This parameter blocks the
operation of the unit and must be
set in the service menu. Contact a
service technician.
Heater setting
The heater type is not set
(water or electrical).
This parameter blocks the
operation of the unit and must be
set in the service menu. Contact a
service technician.
Manometer failure
If the unit is fitted with air
flow rate gauges, one of them
does not measure correctly or
is faulty.
Contact a service technician.
Unbalanced flow rate
The flow rate through the unit
is out of balance, the fans do
not work as per settings.
Contact a service technician.
AHU overheat
One of the temperature
sensors has detected a
temperature higher than 77°C.
Disconnect the unit from power
supply and, if there is no risk of
overheating in the room (fire etc.),
reconnect it.
Communication error
Breakdown of communication
between the controller and
AHU.
Check whether the cable between
the unit and controller is not
interrupted or contact a service
technician.
Clogged filter
The filters in the unit are clogged,
they are not working properly.
The filters in the unit must be
replaced.
Heat recovery
exchanger defrosting
Frost deposits in the heat recovery
exchanger; the unit is not recovering
the heat but defrosting.
The air extracted from the
building is likely to be very
humid and the outside
temperature is low. This
condition usually lasts for
several minutes and the unit
goes back to normal
operation after the heat
recovery exchanger has been
defrosted.
Insufficient heating
capacity of Heater 1
The heating capacity of the unit’s
heater is not sufficient.
Check the status of primary
heating. The unit has
switched to heating from its
back-up source.
High tariff
The unit does not start the electric
heater due to high electricity prices.
Power supply in a high tariff.
Electrical heating is blocked.
Table 6
