Steel hot water boiler with two combustion chambers is intended for
firing wood pellets and logs. In the pellet combustion chamber is
installed the burner for wood pellet firing with the automatic pellet
firing and automatic grate cleaning function and in the second
combustion chamber the wood gasification principle enables burning
of logs.
Multifunctional digital boiler control using lambda probe and
underpressure fan optimizes combustion in both combustion
chambers, which increases the efficiency of the boiler. The pellet
tank is an integral part of the boiler to which the automatic vacuum
pellet supply can be installed. The installation of the accumulation
tank (CAS) is obligatory. It is possible to expand the boiler control
with the CM2K-B module (steering of 2 heating circuits to the
outside temperature, max.4xCM2K), alarm message and boiler
start/stop module CMGSM
PRODUCT CHARACTERISTICS:
PELLET TANK
The pellet tank is an integral part of the boiler –
option to install the automatic vacuum pellet delivery
system.
TWO ENERGIES USED
Intended for firing wood pellets and logs
PELLET IGNITION
The pellet burner is factory-fitted with a burner
with automatic burner grid cleaning and pellet
ignition.
TWO COMBUSTION CHAMBERS
Two combustion chambers in the common
boiler water.
•
Boiler Class 5.
•
Hot water boiler with two combustion chambers for firing logs and wood pellets, with power output 25, 35 and 45 kW.
•
Compact boiler of high efficiency and low maintenance (with standard built-in automatic cleaning of the grate of pellet combustion
chamber it is possible to order additional automatic cleaning of flue gas tubes).
•
Boiler operation is managed with built-in boiler control unit using the lambda probe, boiler sensor, temperature sensor in wood
gasification boiler combustion chamber and flue gas temperature sensor by flue gas modulating fan.
•
Modulating boiler operation on pellet side (30 -100%).
•
Modulating boiler operation on wood side (50-100%).
•
Filling level sensor in the pellet tank.
•
Multifunctional digital controller with a colour touch screen conducts the wood gasification burning process in the log firing boiler.
•
It is engineered for installation in open or closed heating systems only through the accumulation tank (CAS), volume min. 50l/kW.
•
The boiler is tested and certified according to EN303-5: 2012 and meets Class 5. It is manufactured in accordance with ISO 9001 and
ISO 14001 standard
ADDITIONAL EQUIPMENT:
Obligatory: Connection to CAS accumulation tank:
– CAS accumulation tank, 3-way thermostatic valve LTC,
VTC…. (60°C);
Closed heating system – thermal safety valve, safety-air vent
group (2.5 bar) and expansion vessel
Open heating system – open expansion vessel;.
BASIC DIMENSIONS:
DELIVERY, OBLIGATORY AND OPTIONAL ADDITIONAL EQUIPMENT:
Tehniskie parametri
25
Nominal heat output - wood
kW
mm
mm
Boiler height C
Width to enter the room D
Boiler depth H
mm
Pellet tank volume
*Flue gas tube connection
mm
mm
l
Ø mm
kW
Nominal heat output – pellets
Boiler width A
Boiler depth B
BioTec Plus 25-45kW
Outlet diameter
Energy efficiency class
R
-
Inlet diameter
R
25
29
31
35
45
25
25
1025
1385
1350
610
765
80
150
6/4”
6/4”
A
+
29
29
1230
1445
1395
720
765
148
160
6/4”
6/4”
A
+
31
31
1230
1445
1395
720
765
148
160
6/4”
6/4”
A
+
35
35
1230
1445
1395
720
765
148
160
6/4”
6/4”
A
+
45
45
1230
1385
1590
720
1265
148
180
6/4”
6/4”
A
+
5
4
3
2
Boiler regulation;
Fan with electric motor;
Flue gas with exhaust;
Pellet tank;
Boiler water inlet;
Boiler water outlet;
Side opening for cleaning the flue gas
chambe;
Place for installation of thermal
protection.
6
7
8
1
Boiler with casing on 2
wooden pallets, wired, with 4
additional sensors, external
temperature sensor, room
corrector and cleaning
accessories (2 x scraper,
brush, cleaning accessories
holder).
Delivery:
< CAS accumulation tank, 3-
way thermostatic valve LTC,
VTC…. (60°C);
Closed heating system
< thermal safety valve,
safetyair vent group (2.5
bar) and
expansion vessel;
Open heating system
< open expansion vessel.
Obligatory: Connection to
CAS accumulation tank:
< notification of the boiler
status through the mobile
network text message or call
(errors, warning..)
< request for the boiler status
phase of work, boiler
temperature, through an SMS
message in the selected
language
< boiler start/stop by SMS
CAL set alarm (speaker /
light)
module for error notification
by sound or light signal or
warning about the boiler
operation
GSM alarm module for
mobile network // CAL
< allows steering of up to 2
heating circuits to the outside
temp. (up to 2 mixing valves and
up to 2 heating pumps
< possible connection of up to 4
CM2K-B modules (up to 8
heating circuits)
< possible connection of up to 2
room correctors to one CM2K
module
CSK
room corrector
CM2K-B module for steering
2 heating circuits// CSK
< Vacuum wood pellet feeding
with mole from the
storage/room
< Vacuum pellet feeding from
the large pellet tank
(Centropelet box)
< Vacuum pellet feeding with
the feeder screw (transporter)
from the room/storage
< Max. 10 m long flex. tubes
from the large storage.
< Only for pellets DINplus or
ENplus A1.
Vacuum wood pellet
feeding:
HEATING TECHNIQUE
*The internal diameter and height of the chimney must be strictly in line with
the boiler's nominal capacity. It must comply with all national regulatory docu-
ments and manufacturer's recommendations.
Contact phone: +371 28818088, +371 29149923
E-mail: info@centrometal.lv
Homepage: www.centrometal.lv
Combined boilers BioTec Plus (25/29/31/35/45 kW)