Zehnder Rittling ComfoAir Q User Manual Download Page 19

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3.6 Checking the status of the unit

The unit is equipped with a lot of automated controls which influence the behaviour of the unit.
Therefore the unit has a STATUS menu where you can see which controls are active. Next to the active
controls general status information of the unit is also available in the STATUS menu. See the table below
for the information that can be found in the STATUS menu.

Menu item

Function

ERRORS1

To view the current error codes.

FLOW RESTRICTIONS4

To view the reason why the flow rate is influenced.

■

+ HUMIDITY PROTECTION: The unit is running at a higher airflow rate than normal due to a request

from the humidity protection control. See chapter “SENSOR VENTILATION2” for more information
about the humidity protection control;

■

+ HUMIDITY COMFORT: The unit is running at a higher airflow rate than normal due to a request

from the humidity comfort control. See chapter “SENSOR VENTILATION2” for more information
about the humidity comfort control;

■

+ TEMPERATURE PASSIVE: The unit is running at a higher airflow rate than normal due to a request

from the temperature passive control. See chapter “SENSOR VENTILATION2” for more information
about the temperature passive control;

■

+ RF SENSOR: The unit is running at a higher airflow rate than normal due to a request from an RF

sensor. See chapter “RF SETTINGS2,8” for more information about the RF sensor control;

■

+ 0-10V INPUT: The unit is running at a higher airflow rate than normal due to a request from an

analog input;

■

+ 0-10V INPUT (1-4): = The unit is running at a higher airflow rate than normal due to a request from

analog input (1-4);

■

+ COMFOCOOL: The unit is running at a higher airflow rate than normal due to a request from the

ComfoCool Q600. Turn off the ComfoCool Q600 if you would like to decrease the airflow;

■

+ PREHEATER: The unit is running at a higher airflow rate than normal due to a request from the

preheater; Turn off the Preheater if you would like to decrease the airflow.

■

- RESISTANCE: The unit is running at a lower airflow rate than normal because one or two fans are

on the maximum fan duty;

■

- RESISTANCE GUARD: The unit is running at a lower airflow rate than normal because the

maximum allowed static pressure is reached;

■

- NOISE GUARD: The unit is running at a lower airflow rate than normal because the maximum

allowed noise level for the preset is reached;

■

- FROST PROTECTION: The unit is running at a lower airflow rate than normal because the minimal

air temperature is reached;

■

- PREHEATER: The unit is running at a lower airflow rate than normal due to a request from the

preheater;

■

- BYPASS: The unit is running at a lower airflow rate than normal due to a request from the bypass.

See chapter “Heat recovery control (bypass) for a specific duration” for more information about the
bypass control.

UNIT

To view the unit information.

■

HRU TYPE: view the unit type name;

■

FIRMWARE VERSION: view the unit firmware version;

■

SERIAL NUMBER: view the serial number of the main board in the unit.

SCHEDULER

To view the scheduler step in which the unit is currently running.

■

VENTILATION: view which step of the ventilation scheduler is in operation;

■

COMFOCOOL3: view which step of the ComfoCool Q600 scheduler is in operation.

TEMP. AND HUMIDITY

To view the current temperature and humidity of the airflows.

■

EXTRACT AIR TEMP.: view the current temperature of the extract airflow;

■

EXTRACT AIR HUM.: view the current humidity level of the extract airflow;

■

EXHAUST AIR TEMP.: view the current temperature of the exhaust airflow;

■

EXHAUST AIR HUM.: view the current humidity level of the exhaust airflow;

■

OUTDOOR AIR TEMP.: view the current temperature of the outdoor airflow;

■

OUTDOOR AIR HUM.: view the current humidity level of the outdoor airflow;

■

SUPPLY AIR TEMP.: view the current temperature of the supply airflow;

■

SUPPLY AIR HUM.: view the current humidity level of the supply airflow.

BYPASS STATE

To view the current state of the bypass control.

■

The percentage of bypassed air is shown.

FROST PROTECTION

To view the current state of airflow reduction caused by the frost protection function.

■

The percentage of supply air reduction is shown.

If the installer has indicated there is no fire place present, the airflow of the extract air will not be
reduced. The frost protection function will cause an unbalance in the airflow.
If the installer has indicated the presence of a fire place, the airflow of the extract air will have
the same reduction as the airflow of the supply air. The frost protection function will not cause an
unbalance in the airflow.

FROST PREHEATER3

To view the current state of the preheater caused by the frost protection function.

■

The current power consumption of the preheater is shown.

ANALOG INPUT3

To view the current state of the analog input(s)

■

0-10V INPUT 13: view the voltage level of the first analog input.

■

0-10V INPUT 23: view the voltage level of the second analog input.

■

0-10V INPUT 33: view the voltage level of the third analog input.