Zehnder Rittling Svea eAir, Operating And Maintenance Instructions Manual

13

Operating and maintenance instructions for the ventilation unit

Office usage mode

If the ventilation unit is used in 
business premises or in a public 
space, its operating mode is 
possibly 

Office

.

Office usage

 modes are:

• 

Office

 (during normal working hours)

• 

Overtime

 (when people are present outside normal 

working hours)

• 

Boosting

 (when additional ventilation is needed)

When the ventilation is operating in 

Office

 mode, the 

center circle on the control panel main page displays the 

At office

 symbol.

Office

 mode means that the ventilation unit is often 

programmed to function only when there are people at 
the premises. Other times the center circle of the control 
panel indicates “Stop”. 

I want to work overtime (only Office mode)

If you are working for longer than the ventilation is in 
operation, you can switch on the 

Overtime

 mode.

To activate the 

Overtime

 mode:

1.  Tap the green circle in the middle of the main page 

of the control panel. 

Choose operating mode

 window opens.

2.  Tap the 

Overtime

 icon.  

Ventilation is left on and ends only after the set time. 
Default value is 2 hours.

What to do if ventilation is not 

working as wanted?

Supply air is too warm

If the air flowing from the ventilation is too warm:

1.  Tap the minus symbol (

-

) on the main page of the 

control panel. 
The temperature reading on the panel changes, and 
the ventilation system begins to adapt for the set 
temperature. 

The set temperature is shown in green on the screen. 
The indicated temperature reading can be the set point 
temperature for supply air, extract air or room temperature 
depending on the settings.

The unit uses all available options for reaching the set 
temperature. If your system is missing elements, such as a 
cooling coil, it will not necessarily be able to reach the set 
temperature.

Supply air is too cold

If the air flowing from the ventilation is too cold:

1.  Tap the plus symbol (

+

) on the main page of the 

control panel. 
The temperature reading on the panel changes, and 
the ventilation system begins to adapt for the set 
temperature. 

The set temperature is shown in green on the screen. 
The indicated temperature reading can be the set point 
temperature for supply air, extract air or room temperature 
depending on the settings.

The unit uses all available options for reaching the set 
temperature. If your system is missing elements, such as 
a heater, it will not necessarily be able to reach the set 
temperature.

The use of Eco mode may prevent the ventilation 

unit from reaching the set temperature

FOR INFORMATION