Komfovent DOMEKT C8 automation User Manual

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UAB KOMFOVENT we reserve the right to make changes without prior notice
DOMEKT_C8_guide_21-07
Code Message Possible cause User‘s actions
F9 Internal re
alarm
1. Internal air temperature is above
50°C
2. Faulty temperature sensor.
1. Locate the heat source in the ductwork or unit.
2. Contact authorised service.
F10 External re
alarm
A re alarm was received from the
building re system.
Once re alarm is removed, the unit must be started using a
control panel, computer or a smartphone.
F11-F22 Temperature
sensor failure
Temperature sensor(s) faulty or not
connected.
Contact authorised service.
F23-F26 Controller failure Controller main board malfunction. Contact authorised service.
F28 Temperature
sensor failure
No signal from temperature sensor
located in the control panel.
Check control panel wiring and cables. Replace the control panel,
if necessary.
F29 Humidity sensor
failure
No signal from humidity sensor located
in the control panel.
Check control panel wiring and cables. Replace the control panel,
if necessary.
F30 Humidity sensor
failure
Faulty or disconnected air humidity
sensor by which the unit is operating.
Check the sensor wiring, replace the sensor or indicate that this
sensor is not used in the settings.
F31 Impurity sensor
failure
Faulty or disconnected impurity sensor
by which the unit is operating.
Check the sensor wiring, replace the sensor or indicate that this
sensor is not used in the settings.
F32–
F37
Heat exchanger
failure
Rotor heat exchanger not rotating
(only for DOMEKT R devices).
1a. Check for foreign objects or debris preventing rotation of the
rotor drum. Check if the rotor belt is not torn.
1b. Contact authorised service.
F38–39 Air ow sensor
failure
Disconnected or faulty air flow
sensor(s)
It is necessary to check the sensor connections or to change the
sensor.
F40
Communication
error
1. Wrong settings
2. Not connected or broken external
re damper controller.
1. If re damper system controller is not used with AHU, disable it
in the Settings->Connectivity->Modbus RTU
2. Contact person responsible for re damper system mainte-
nance or authorized service.
F42-F45
Fire damper
failure
Incorrect operation of one or more re
damper actuators
Contact person responsible for re damper system maintenance
or authorized service.
F46-F50
External re
alarm
External re alarm received from re
damper controller.
Fire alarm can be generated from building re system, from
smoke detectors, thermostats of the damper actuator or etc.
W1 Clogged air ters Replacement of air lters is necessary. Switch o the device and replace air lters. Delete the message
after replacement.
W2 Service mode Temporary special operating mode
that can only be activated by a service
specialist.
If the unit has been recently repaired, contact the person who
repaired the unit to determine if service mode can be disabled.
Service mode is turned o by deleting the message.
W3 Return water
temperature low
Warning that the water temperature
is lower than that required to heat the
supply air.
Check the condition of a circulation pump and the heating sys-
tem as well as operation of a heating damper actuator.
W4 Humidity sensor
failure
One of the two humidity sensors is
faulty or not connected. Device is oper-
ating by another connected sensor.
Check the control panel wiring, replace the sensor or select that
this sensor is not used in the settings.
W5 Impurity sensor
failure
One of the two air quality sensors is
faulty or not connected. Device is oper-
ating by another connected sensor.
Check the control panel wiring, replace the sensor or select that
this sensor is not used in the settings.
W6 Low heat
exchanger
eciency
1. Message may appear when air is
extracted through an additional
branch, and, as a result, the heat
exchanger eciency has decreased
(only for DOMEKT R devices).
2. Supply air volume signicantly ex-
ceeds the extract air volume.
3. The unit door is not fully closed and
dierent air ows are mixed.
1. If additional extraction is not used, the fth branch must be
closed. Check if an air closing damper installed in the auxiliary
extraction duct is completely closed.
2. If such air ow dierence is not required, unify air ow settings.
3. Check that the unit door is pressed rmly and that gaskets are
not worn.

Komfovent DOMEKT C8 automation Specifications

General

Brand	Komfovent
Model	DOMEKT C8 automation
Category	Air Handlers
Language	English