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Technical manual
Bio-Tec
Technical manual
Bio-Tec
Ignition phase, boiler operation phase
6.1. IGNITION PHASE
After first boiler charging with fuel (see - Ignition phase and first fuel charging - page
21), it is necessary to push "START" button which runs fan and indication (LED) 3
is flashing. (see Point 7.0)
6.2. BOILER OPERATION PHASE
After ignition and closing of middle door by (second) pressing "START" button, the
process of boiler heating up and combustion will start (indicator (LED) 3 is switched
on continuously). In this mode the control of the flue gas temperature is fulfilled.
After the period of the heating up (120 minutes), the temperature of flue gases has
to be higher then 85°C during the normal functioning or 115°C in the mode "GLOW".
The period of heating up starts from 0 minutes with each deactivation of the fan. The
protection system deactivates the fan when the maximal temperature of one of
elements in the system has been reached.
Parallel with the flue gases temperature, increases the boiler temperature. When
the boiler temperature reaches 65°C+2°C the pump P1 is activated (see Points 5.1.
and 5.2.). The fan keeps running until the boiler's temperature comes to the 90°C. It
will be newly activated when conditions are fulfilled.
When the flue gases temperature starts to fall, because of the lack of fuel despite
the functioning of the fan, the flue gases temperature falls to 85°C, the firing process
is completed without keeping the glow, or until 115°C with keeping the glow. The fan
stops and the pump P1 keeps functioning for the next 5 minutes. The firing process
shall also be deactivated if any error appears for longer then 5 seconds.
The digital boiler regulation steers the heating pump P2 (see points 5.1. and 5.2.)
when the condition if fulfilled, i.e. the temperature inside the first water accumulator
is minimum 5°C higher then actual room temperature. Steering of the pump P2
does not depend of the firing process status inside the boiler. Description of the fan
functioning and the pumps is shown in the Technical manual "Digital boiler
regulation Bio-Tec".
After the boiler regulation starts to display the lack of fuel , it is possible to restart
the procedure of the filling the combustion chamber.
First is need to push "START" button, indication (LED) 3 is flashing (see Point 7.0),
open te upper boiler door and fill upper combustion chamber with wood logs. After
that is necessary to close upper boiler door, push "START" button, indication (LED)
3 is flashing. (see Point 7.0).
If there is no glow any more, and we still wish to
continue with firing proces
, we repeat the procedure from
point
6.1. and 6.2. above.
B i o - T e c
Turning off digital regulation, thermal protection, safety protection
6.3. TURNING OFF DIGITAL REGULATION
If it is necessary to turn off the digital regulation (control of heating pumps, sanitary
water and the pump between the boiler and water accumulation tanks), after the
control indicator-no fuel switches on , wait until the boiler is cooled down below
65°C and until there is no wood logs in the upper chamber. Only then the main
switch on the boiler digital regulation may be turned off (see point 7.0).
6.4.
THERMAL PROTECTION OF THE BOILER (CLOSED SYSTEM)
If by chance the boiler temperature reaches the temperature of 95°C, even though
the boiler regulation elements, the thermal safety valve shall allow that the water
from the aqueduct comes through the thermal valve into the boiler heat exchanger
and to cool the boiler down (see point 5.2.1.).
If the boiler is installed in the closed central heating system, a thermal valve must be
built to the designed location on the boiler. Thermal valve must be connected to the
aqueduct and, if this is not possible, the boiler has to be built in the open heating
system.
6.5.
SAFETY PROTECTION IN CASE OF EXCEED TEMPERATURE
remove the safety thermostat lid at the control unit and push the button on the
safety thermostat (Image 6.).
If the boiler regulation does not disactivate the fan at 90°C of the boiler water
temperature and the level of 101 °C - 110 °C can be reached, safety thermostat will
deactivate the fan. For newly start up of the boiler following process has to be
performed:
- wait until the boiler temperature falls under 70°C:
-
- continue with boiler functioning according the "Boiler Steering Procedure" or let
the boiler be disconnected.
If the safety thermostat breaks off repeatedly, the authorized person should check
the system.
Safety thermostat
Boiler regulation unit
Boiler control box
Image 6.
- Safety thermostat