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5. Ventilator after-running time setting
The required ventilator after-running time is set by means of pushbutton
7. On display there appears the data like VE 60 and it means the required
ventilator after-running time of 60 s. The value can be changed by
pressing the pushbutton * and entering a new digit combination like 70.
Then VE 70 is alight on display. The decision correctness must be
confirmed by pushbutton *. Confirmation o.k. must appear on display. The
required outlet water temperature can be set between 5 and 90 seconds.
The recommended value is 50 s.
6. Regulator error conditions
During the operation there might appear the outlet water temperature sensor failure. This will be indicated on
display by blinking Er inscription and the regulator is in inhibition status. There only runs two-minutes stoking
after the inhibition time passed over.
On the display there is blinking Er inscription – heating water temperature measuring is outside the measured
range (0 °C - 99 °C).
Possible reasons:
- temperature sensor damage
- sensor conductor interruption
- temperature –frequency converter faulty
Al these failures can only be eliminated by a special contracting service worker.
Note.:
During the boiler commissioning process and after the regulator has been switched on or
occasionally already during the boiler automatic operation there flickers on display the message
Er, but this means that the converter gets setting and within several minutes this message is
replaced by the measured temperature.
7. Choke valve
The volume of dosed combustion air can be regulated at MONEX regulator by a choke valve on ventilator.
This volume depends on the fuel quality. Generally it applies: the higher the heating power (depending on the
sort of fuel, granularity, moisture, quality etc.), the smaller the need of supplied air.
After adjustment of combustion air to tighten the screw so that would not be spontaneously unscrewed. There
is the strangling flap of the fan on fig. no. 22.
The optimal air supply regulation is that one depending on flue gases temperature. Under the common
operation (the boiler isn’t enormously clogged with fly ash and tar) at the nominal output of VIADRUS
HERCULES ECO 5 (24 kW) the flue gases temperature should not exceed the limit 170 °C, at the nominal
output of VIADRUS HERCULES ECO 10 (42 kW) this limit is 142 °C. If it is the other way round it is
necessary to choke the supplied air volume.
Fig. no. 22
Strangling flap of the fan
