35
How to perform the 4 Pa Pressure Test:
4. Switch on appliance and all air conditioning (fan, dryer)
with maximum power.
5. Open an outside window or a door to the reference room
and test proper operation of the appliance, ensure that
there are no backdraft conditions.
6. Position the reference capillary hose: Lead the hose out-
side through a window seal or into the stairways through
the door rebate or the keyhole.
Fig. 39: 4-Pa Test
NOTE!
Especially on stormy days, the stairways may be a stable
reference room.
If the stairways are used as reference room, all windows,
doors, cellar doors and trap doors have to be closed.
The second capillary hose will stay uncut in the fireplace
room.
7. Press „PD =0“ to zero the pressure sensor.
8. Press "Start" to start the 4-PA Test.
The meter will now record the pressure profile for 4
minutes.
9. Open the window/door for about 30 seconds, so that the
zero line can be registered.
10. Close the window/door for about 30 seconds, control
underpressure.
11. Open the window/door for about 30 seconds, the zero
line should be reached again.
12. Close the window/door for about 30 seconds, control
underpressure.
13. Open the window/door for about 30 seconds, the zero
line should be reached again.
14. Close the window/door for about 30 seconds, control
underpressure.
For a better orientation, every 30 seconds there are auxil-
iary lines in the diagram. After a maximum of 4 minutes, the
measurement will stop automatically.
Fig. 40: Pressure profile during the
4 Pa Test
NOTE!
Press "Stop" to stop the 4 PA Test earlier.
To Next Page
Loading...