Centrometal Bio-Tec 25 Technisches Handbuch - Seite 11

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Centrometal Bio-Tec 25 Technisches Handbuch
Boiler start up
- After the regulation starts to display the lack of fuel
refilled (if it is necessary to continue the heating process)-BEFORE REFILLING,
press START button ones.
FUEL REFILLING PHASE:
- open the upper boiler door (see Image 7)
- align glow with poker
- insert fuel (recommended to fill the full upper combustion chamber) (see Image 8)
- close the upper boiler door (see Image 7)
-press button START for second time. (see Point 7.0)
NOTE:
- During the process of refilling the fuel the main switch of the boiler has to be
turned on. When the firing proces is over we can turn off the main switch, but first
it is necessary, after the indication ''FUEL''
cool down under 65°C and the glow disappear in combustion chamber (see point
7.0.).
Image 7. - Door opening method
LEGEND:
-
Upper boiler door
GV
-
SV
Middle boiler door
-
Lower boiler door
DV
PROCESS THE OPENING OF
BOILER DOOR:
- Upper boiler door - allowed to open only in ignition phase, fuel charging phase
and the phase of cleaning of boiler and boiler parts.
Of durig the opening door is necessary ajar, that leave them for few second so that
the fan intake smoke trough bypass, and then fully open.
- Middle boiler door - allowed to open only in ignition phase and the phase of
cleaning of boiler and boiler parts.
- Lower boiler door - allowed to open only in the phase of cleaning of boiler and
boiler parts.
22
, the fuel should be
is turned on, to wait that the boiler
GV
Open Close
SV
DV
Technical manual Bio-Tec
Scheme 1. - Open central heating system with 1 water accumulator
7
above the
highest heating
body
Left
Right
5.2.
CONNECTION TO THE CLOSED CENTRAL HEATING SYSTEM
In closed heating system (as in example shown in Scheme 2) it is obligatory to
build in certified safety valve with opening pressure of 2,5 bar, minimum seat
diameter of 15 mm, minimum inlet connection of 1/2", minimum exit connection of
3/4" and a membrane expansion vessel. Safety valve and expansion vessel must
be built in accordance with professional rules and any valve must not be located
between safety valve and expansion vessel and boiler. The closed heating system
must have the installed expansion vessel of larger volume (vessel volume must be
approx. 10% of the installation volume). In all boiler types the heating pump must
be connected to boiler regulation so that the heating pump switching on and off
would depend on water temperature in the boiler.
regulation is shown in Technical manual ''Digital boiler regulation Bio-Tec''.
Technical manual Bio-Tec
Connection to the open central heating system
Connection to the closed central heating system
1 - Boiler Bio-Tec
"
"
2 - "CAS" water accumulator
3 - 3-way thermic valve (maintains minimum temperature
of return water into the boiler above 60°C), VTC 531
(maintains minimum temperature of return water into
the boiler above 60°C), LTC 141 (maintains minimum
temperature of return water into the boiler above 60°C)
or Laddomat 21 (maintains minimum temperature
of return water into the boiler above 63°C)
4 - Manual 3-way mixing valve
5 - Room thermostat (included into basic delivery)
6 - Heating circuit
7 - Open expansion vessel OPC (enough above
the level of the highest radiator, approx. 7% of the
total volume of installation)
8 - Sanitary water accumulator
(SKB-Digi/LKB-Digi/TB/STEB)
9 - Pump 1 - boiler pump
10 - Pump 2 - heating pump
11 - Pump 3 - hot sanitary water pump
2
1
9
3
5
6
T
T
T
T
10
11
4
8
The functioning of boiler
11