ecom-EN3
Page 41
6.4 4 Pa Measurement (option)
The simultaneous operation of room-dependent firing place and air evacuation system can
lead to dangerous low pressure conditions. With the ecom-EN3 it is possible to check the low
pressure limit value of 4 Pa and to document in a diagram the time course of the low
pressure value. Once the menu point is called up, the measurement is to be performed as
follows:
- connect capillary hose for room where burner is installed to „-“
- connect capillary hose for reference place (staircase or outside air to „+“
- operate firing and evacuation systems with maximal performance
- open window resp. connection door to burner room and check the correct
evacuation of the exhaust gases
- zero pressure sensor with <F4>
- position capillary hose for reference location
- start record pressure value course with <F1> (Start) (an acoustical signal is issued
every 30 sec. which can be deactivated / re-activated pressing <F2>)
- record pressure by opened window resp. connection door
- close window resp. connection door after approx. 30 sec. and check low pressure
- after approx. 30 sec. open window resp. connection door and check zero point
- close window resp. connection after approx. 30 sec. and check low pressure
- after approx. 30 sec. re-open window or connection door and check zero point
- after approx. 30 sec. close window resp. connection door and check low pressure
Once the measurement time is completed, the diagram can be viewed on the display (use
<F3> to emphasize illustration 1x, 2x, 4x, 8x times or A for automatic). Start a printout if
needed with <Print>.