20
| UK
Your energy.
Optimized.
Testing flue gas extraction and the pressure switch setting
This test must be carried out to ensure that the pressure switch (PDS) and the speed of the chimney fan
have been adjusted correctly for the unit in question. The test must be carried out with doors and windows
closed. If other extraction fans have been installed, these must be switched on during the test.
Test procedure
If flue gases enter the room, the speed of the chimney fan must be increased. If flue gases enter the room
without the failsafe system shutting off the gas supply, the pressure switch (PDS) must be adjusted to a
higher setting.
If the sound pressure level is very high, reduce the speed of the chimney fan. Then perform the test once
more and repeat this procedure if necessary. The procedure must always be concluded with a test.
During such a test, all windows and doors must be closed and any ventilation fans switched on. Please
refer to the relevant Exodraft Gas Fan Controller Installation Instructions for guidance. Remove the top
cover and adjust the (PDS) to the required value.
RHG
PDS top cover
WARNING! Do not open the top section unless the
power to the chimney fan has been disconnected!
Summary of Contents for RHG
Page 1: ...Your energy Optimized Chimney Fan RHG UK Read and save these instructions ...
Page 2: ......
Page 23: ...UK 23 3112005_RHG_UK ...
Page 24: ...24 UK Your energy Optimized ...
Page 25: ...UK 25 3112005_RHG_UK ...