Advantages of Wood Gasification Boilers ATMOS

• Option to burn large pieces of wood 
• Large space for wood – long burning time – up to 12 hours, depending on boiler type
• High efficiency 87 – 92 % – primary and secondary air is preheated to a high temperature
• Ceramic combustion chamber
• Ecological burning – boiler class 5 – EN 303-5:2012, ECODESIGN 2015/1189
• Exhaust fan – dust-free ash removal, smokeless boiler room
• Cooling loop protecting against overheating – without risk of boiler damage ​ ​
• Automatic shutdown of the boiler after the fuel has burned out – flue gas thermostat
• Comfortable ash removing – large space for ash (when burning wood, clean it 1x / week)
• Boiler without tube heat exchanger – easier cleaning
• Small size and low weight
• Possibility of choosing a door R / L (right/left) for selected types
• Possibility of connection without accumulation tank
• High quality

Installation

ATMOS boilers must be connected via the LADDOMAT 22 or ESBE thermoregulation valve (three-way valve controlled by actuator in case of using electronic regulation ACD 03/04) to achieve keeping the minimum temperature of water returning to boiler at 65 °C. The temperature of water exiting the boiler must be permanently kept between 80 – 90 °C. The default configuration of all boilers includes a cooling circuit to prevent overheating. We recommend installing boilers with accumulation tanks.

Boilers regulation

Electromechanical regulation – boiler performance is regulated by an air regulating valve controlled by a draft regulator, FR 124 type, which automatically opens or closes the air valve according to the set water outlet temperature (80 – 90 °C). In addition to performance regulation, the draft regulator helps protect the boiler against overheating. Its advantage is a quick ignition and firing up to the required output when the air valve is fully open. The boilers are equipped with a control thermostat on the instrument panel, which controls the exhaust fan according to the set water outlet temperature (80 – 85 °C) and a flue gas thermostat, which is used to shut down the boiler and turn off the exhaust fan after the fuel has burned out. In the case of connecting a boiler with accumulation tanks, the flue gas thermostat also controls the operation of the pump in the boiler circuit.

The advantage of regulation and design of ATMOS boilers is that the boilers work with a good chimney draft up to 70 % of the nominal power even without a fan.

Panel composition:
Main off switch, safety thermostat, thermometer, regulator thermostat and combustion thermostat

Electro-mechanical regulation is an optimum solution for easy management of the operation of the boiler (ventilator). The design of the panel with standard regulation is a basic design for all produced boilers.

Equithermal regulation ACD 03

Each boiler can be equipped with a modern touch electronic control ATMOS ACD 03 for controlling the entire heating system depending on the outdoor temperature, room temperature and time. It´s designed for comfortable control of the hot water system of the heated building. The controller contains functions for direct control of the boiler, boiler circuit, three heating circuits, domestic hot water, solar, etc.

Equithermal regulation ACD 04

The boilers DC18S, DC25S, DC32S and DC40SX can be ordered from the factory with built-in ATMOS ACD 04  touch screen control.The boilers are allready equipped with all necessary sensors including flue gas temperature sensor (AGF) .This unit is designed for comfortable control of the hot water system of the heated building. The controller contains functions for direct control of the boiler, boiler circuit, three heating circuits, domestic hot water, solar, etc.

Automatic wood ignition

The automatic ignition of wood is used for planned ignition of the boiler, e.g. before coming home in the afternoon or before arriving at the cottage. The ignition of the fuel is very fast (approx. 5 minutes) and allows the operator to arrive “into the heat”. Fuel ignition can be can be set and scheduled for ATMOS AC32 regulation according to time (48h), according to the heating system requirement or according to the temperature in the accumulation tank. Automatic wood ignition is intended for DC32S and DC40SX boilers.

The ATMOS AC32 electronic regulation allows you to set the delay time or the temperature of the accumulation tank, at which the automatic ignition of wood (AIW) will occur, using the rotary wheel. If we have already installed fuel in the boiler loading chamber and poured pellets in the ignition chamber, we can proceed to planning the heating itself. Ignition can be carried out immediately, after a certain time has passed, after the accumulation tank is empty or according to a signal from a remote device (room thermostat, GSM, WiFi, etc.).

Technical details

Specification		Boiler type
		DC18S	DC22S	DC25S	DC30SX	DC32S	DC40SX	DC50S
Boiler heat output	kW	20	22	27	30	35	40	49,9
Boiler thermal input	kW	22,2	24,5	30,0	33,4	39,4	45,0	56,9
Heating surface	m2	1,8	2,1	2,3	2,3	2,9	2,9	3,8
Fuel shaft volume	dm3 (l)	60	95	95	95	135	135	180
Filling hole dimensions	mm	450 x 260	450 x 260	450 x 260	450 x 260	450 x 260	450 x 260	450 x 260
Prescripted chimney draft	Pa / mbar	18 / 0,18	23 / 023	23 / 0,23	24 / 0,24	24 / 0,24	24 / 0,24	25 / 0,25
Max. working water overpressure	kPa / bar	250 / 2,5	250 / 2,5	250 / 2,5	250 / 2,5	250 / 2,5	250 / 2,5	250 / 2,5
Boiler weight	kg	269	324	326	332	366	368	433
Gas-outlet pipe diameter	mm	150 / 152	150 / 152	150 / 152	150 / 152	150 / 152	150 / 152	150 / 152
Ingress protection of electric parts	IP	20	20	20	20	20	20	20
Electrical power input (auxiliary)	W	50	50	50	50	50	50	50
Electrical input in standby mode	W	0	0	0	0	0	0	0
Ignition mode		manual
Efficiency over the entire performance range	%	90,1	89,9	89,9	89,9	88,9	88,9	87,7
Boiler class		5	5	5	5	5	5	4
Boiler category		1
Operating mode		non-condensing
Energy efficiency class		A+	A+	A+	A+	A+	A+	A+
Flue gas temperature at rated power	°C	157	177	177	177	185	185	255
Waste gas combustion products flow weight at nominal output	kg / s	0,012	0,014	0,015	0,017	0,020	0,022	0,025
Specified fuel (preffered)		Dry wood with a calorific value of 15 – 17 MJ/kg-1, water content 12 – 20 %, diameter 80 – 120 mm
Average consumption for the heating season	kg.h-1	20	22	25	30	35	40	50
Prescribed wood length	mm	330	530	530	530	530	530	730
Combustion time at nominal output	Hours	2	3	3	2	3	2	3
The volume of water in the boiler	l	45	58	58	58	80	80	89
Boiler hydraulic loss	mbar	0,18	0,21	0,21	0,21	0,20	0,20	0,22
Minimum buffer tank volume	l	500	500	500	500	500	500	750
Connecting voltage	V / Hz	230/50
EKODESIGN

High performance boilers

Wood gasification boilers are suitable not only for family houses, but also for businesses premises. High performance boilers are widely used in carpentry shops, manufacturing plants, schools and mountain huts. Every place, where wood is available as cheap fuel. The boilers can be arranged next to each other in a cascade and operated according to the current heat losses of the building.

The advantage of the DC100, DC105S and DC150S boilers is the ability to quickly change the output in two steps, due to the fact that the boilers are equipped with two fans.

Additional information about boilers:
DC70S	DC100	DC105S	DC150S