ABB HT842305 - Page 48

Operation Manual / TPL85-B14/-B15/-B16
Operation
4
Underpressure measurement on filter
silencer
4.5
Page 46
© Copyright 2016 ABB. All rights reserved.
May 2016 HZTL2491_EN Revision B
With a clean filter silencer (and clean filter mat, if provided), the maximum
pressure loss (A) is
120 mm H
2
O at full load.
When the pressure loss (A) has reached 200 mm H
2
O:
 Clean filter silencer.
NOTICE
Reading off pressure loss
The measuring rod on the U-tube manometer can be withdrawn to the
bottom water level so that the pressure differential (A) can be easily
read off.
The U-tube manometer can be read off more easily if slightly coloured
water is poured in.