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53
Fig. 52: Plan of the 4 Pa Test
How to perform the 4 Pa Pressure Test:
1.
Switch on appliance and all air conditioning
(fan, dryer) with maximum power.
2.
Open an outside window or a door to the
reference room and test proper operation of
the appliance, ensure that there are no back-
draft conditions.
3.
Zero the pressure sensor.
NOTE!
During the zeroing proces the
icon will appear
at the top of the screen.
4.
How to position the reference capillary hose:
Lead the hose outside through a window seal
or into the stairways through the door rebate
or the keyhole.
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.
