5.4
Setting basic steps in the Danfoss Link™ CC
Now the Air Unit has been added to the wireless system, and is ready for balancing of the air flow. If the Air Unit has just been added to
the system, the screen will prompt for setting the basic extract and supply air step.
If the system was started earlier/by others, enter the basic settings through the Service Menu by pressing the Air Dial button for 5 sec-
onds. Go through the following steps.
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1
Service Options
Rooms and Devices
es
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2
Rooms and Devices
Manage Devices
es
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3
Manage Devices
Configure device
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4
Select Device
Air unit
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5
Configure Device
System settings
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6
System settings
Set basic steps
6
Balancing of the Main Air Volume
To achieve the best possible performance, it is vital to balance the main air volumes (balancing
will also help protecting the house against fungus and dry rot). The system should not be bal-
anced/commisioned at outdoor temperatures below -3°C, as the system will go into frost pro-
tection mode (indicated by a flashing icon on the display. If necessary to perform balancing at
outdoor air temperatures below -3°C, remove power for 20 seconds to de-activate frost protec-
tion for 90 minutes.
Note! Close all doors and turn off the cooker hood.
1. Remove the front panel from unit by pulling the handles.
2. See the drawing of the duct system, where suggested pre-setting values for all air valves
are stated. Close the valves completely, and turn them full turns towards open (number of
turns as indicated on the duct system drawing). When setting up the systems for which
Danfoss has not dimensioned the duct system, set the supply and extract valves in accord-
ance with the instructions of the project manager.
3. If dampers are included in the system, open these completely.
4. Mount measuring tubes between the unit’s measuring points on the extract side and dif-
ferential pressure gauge.
5. Find the required flow on the system diagram (sticker on front cover) with the correspond-
ing differential pressure value. If the pressure is too low, adjust the fan step upwards until
you reach the required pressure.
6. Move the measuring tubes to the measuring points on the supply side and use the same
procedure to set the supply air.
7. After the main air volumes have been adjusted, the set-up of individual valves needs to be
carried out. In most cases, this will entail minor changes to the chosen basic steps, but this
can be done in the room by adjusting the valves, or by using the Air Dial to fine tune basic
steps.
Measuring the extract
Measuring the supply
Adjusting an operational system
1. Press Air Dial for 5 seconds to get access to the Service menu.
2. Press ”set basic step” to activate the special commissioning mode (where all outside influ-
ences are blocked - the installer controls the extract and supply air fans completely with
1-100% fan speed). The Service menu remains visible for one hour and then disappears.
Installation Guide
Danfoss Air Units
Danfoss Heating Solutions
VIEWB302
7
GB
.
