Dantherm HCH 5 MKII, Manual

Page: 34 / 108

34
INSTALLATION & SERVICE MANUAL FOR PROFESSIONALS
Installation : Calibration of airflow
Step Action
5 Connect the pressure manometer to
pressure adapter P1 and P2 and measure
the pressure difference on the supply air
side over the heat exchanger.
6 Balance the nominal air flow rate on the supply air side.
Wait approximately two minutes before the next adjustment of potentiometers, in
order to let the unit stabilise the air flows.
Strong wind against the building might affect balancing the unit.
7 Connect the pressure manometer to
pressure adapter P3 and P4 and measure
the pressure loss on the exhaust air side
over the heat exchanger.
8 Balance the nominal air flow rate on the exhaust air side.
Wait approximately two minutes before the next adjustment of potentiometers, in
order to let the unit stabilise the air flows.
Strong wind against the building might affect balancing the unit.
9 Check the pressure difference over heat exchanger on the supply air side one more
time, as it might has changed due to the adjustment on the exhaust air side. Make
an adjustment if necessary.
10 Adjust the balancing of the valves in every room in order to make sure that the
desired air flow rate can be supplied in every room.
11 Check the nominal air flow rates based on earlier instructions in this procedure as
radical adjustments (balancing) will influence the nominal air flow rates.
Procedure,
continued