Viadrus Hercules P 1, Manual, Operation And Installation

Page: 37 / 48

37
7. Fault conditions
Fault conditions Cause Remedy
The boiler output is too low Calorific value of fuel is insufficient
fuel moisture is above 20% Use the prescribed fuel of prescribed
moisture
Clogged or deformed fan propeller Clean the fan propeller or replace it
Reverse fan revolutions Check direction of fan revolutions
Clogged nozzle Clean the nozzle orifice with poker
Operating conditions not observed Check the transport pressure,
temperature of reverse flow
An excessive amount of
condensate in the stoking space
of boiler Improper or too moist fuel Use prescribed or dry fuel
Low temperature of boiler water Check / increase the minimum boiler
water temperature on the controlling
device and by adjusting the mixing
valve ensure the minimum
temperature 60 ˚C in reverse flow
Flue gases fan does not rotate
or it is too noisy
Attention! Standing fan may
cause incomplete combustion
and formation of tar deposits Only at standing fan: maximum
temperature of the boiler is reached No fault has occurred! The boiler is
working properly. The flue gases fan
starts when you open the stoking
door. Too much fuel is loaded.
The fan motor or starting capacitor
are defective Have the fan or capacitor replaced by
a specialist company.
Propeller of fan is baked Remove tar deposits from the fan
propeller and if a damage is detected
replace the fan propeller
The limit switch of stoking door is in
a wrong position or is defective Adjust the limit switch of stoking door
or have it replaced by a specialist
company