Adjustment - Dantherm HCV 4 Installation Manual

Adjustment

Introduction This section guides you through the initial adjustment of the HCV unit
Important Only trained and certified technicians are permitted to install the unit!
Legislation Initial adjustment of air flow rates must always be carried out in accordance with na-
tional legislation. Only the nominal air flow requires initial adjustment. The nominal air
flow is Fan Step 3 in Manual Operation Mode on the control panel. More at Description
of the Control Panel' section in the user guide.
When The unit must be adjusted in the following situations:
 Before the unit is used for the first time
 If the size of the house changes
 If the house is renovated and the duct system is affected by the renovation
 If the filter type is changed e.g. during the pollen season
Before you start All air valves in the duct system must be set according to the manufacturer's/supplier's
recommendations before an initial adjustment of the HCV is commenced.
Ensure that you have the following at hand before you start the installation:
 Pressure manometer with approx. 5 mm pipes matching the pressure connections
on the unit, which are 6 mm
Initial adjustment of When the initial adjustment is carried out, it is important to ensure that the air flows are
air flow the same!
The supply air flow (T2) must under no circumstances be higher than the extract air
flow (T3). If it is, it may mean that humid air is pressed into the building structure,
which can have a destructive effect on the building if the vapour shield is not 100% air-
tight.
Procedure Follow this procedure to adjust the unit:
Step
1
2
3
Important:
Open the top door
Remove the two screws on the top of the bottom
door and remove the door by tilting it and lifting it
up.
Check that the foam insulation plates in front of the
filters are correctly mounted with the soft side fac-
ing the filter. Push the plates firmly against the filter
to prevent any unwanted air being drawn in that
way.
Action
Continued overleaf
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