Dantherm HCV 3, Installation And Service Manual

Page: 52 / 166

50
How to balance the unit,
continued
Procedure,
continued
Step
Action
2 Turn off the power supply to the unit and wait for ten seconds. Then turn the
power supply back on.
3
Activate Installation Mode by pressing Manual + Auto for 6 seconds.
After this, Fan Step 3 illuminates constantly.
NB: Installation Mode is active for one hour. In Installation Mode are bypass,
protection against frost and compensation of filter flocculation switched off in
order to prevent interruption during balancing the unit on Fan Step 3.
4 How to set the desired airflow rate:
216
230 58
48 60
70
Set a desired air flow rate according to national regulations, which corre-
sponds to the size and air usage of the house:
Step Action
1 Write down the values of supply and exhaust air flow rates in the
graph above.
2 Read and write down the corresponding pressure loss through the
heat exchanger.
3 Balance the unit.
4 Write down the settings of the two potentiometers in the table, later
in this procedure.
Continued overleaf
P1 - P2 Supply air
P3 - P4 Exhaust air
The handwritten
data are for illus-
trative purposes
only.
216
230
[m
3
/h]
[m
3
/h]
50
59
3) 1)
Pressure loss through the exchanger
58
48
2)