Wood boilers ATMOS Generator DC15GS, DC20GS, DC25GS, DC32GS and DC40GS with a large application space lined with ceramics for optimal combustion quality. It’s a real wood gas generator.

Advantages of gasification boilers for piece wood 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 88,8 to 91,2 % depending on the type – primary and secondary air is preheated to a high temperature
• Ceramic loading chamber – fuel pre-drying
• Ceramic combustion chamber
• Ecological combustion – boiler according to EN 303-5:2012 class 5, EKODESIGN 2015/1189
• Exhaust fan – dust-free ash removal, smokeless boiler room
• Cooling loop against overheating – without the risk of damaging the boiler
• Automatic shutdown of the boiler after the fuel burns out – flue gas thermostat
• Convenient ash removal – large space for ash (when burning wood, clean it 1x / week)
• Boiler without tubesheet – 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 ATMOS 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 optimal 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. This regulation is able to control the boiler itself with a fan with many other functions.

Equithermal regulation ACD 04

The boilers DC25GS, DC32GS can be ordered from the factory with built-in ATMOS ACD 04  touch screen control.The boilers are allready equipped with all necessary sensors.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.

Technical details

Specification		Boiler type
		DC15GS	DC20GS	DC25GS	DC32GS	DC40GS	DC50GSX	DC70GSX
Boiler heat output	kW	15	20	25	32	40	49	70
Boiler thermal input	kW	16,4	21,9	27,4	35,1	45,0	53,8	77,5
Heating surface	m2	1,8	2	2,7	2,9	3,2	3,5	4,3
Fuel shaft volume	dm3 (l)	66	80	120	120	160	210	280
Filling hole dimensions	mm	450 x 260	450 x 260	450 x 260	450 x 260	450 x 260	450 x 310	450 x 310
Prescripted chimney draft	Pa/mbar	16/0,16	20/0,20	23/0,23	25/0,25	25/0,25	25/0,25	26/0,26
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	302	343	431	436	485	538	690
Gas-outlet pipe diameter	mm	150/152	150/152	150/152	150/152	150/152	150/152	180
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	%	91,2	90,6	90,3	89,3	88,8	90,6	90,3
Boiler class		5	5	5	5	5	5	5
Boiler category		1
Operating mode		non-condensing
Energy efficiency class		A+	A+	A+	A+	A+	A+	A+
Waste gas temperature at nominal output	°C	134	166	158	171	250	165	161
Waste gas combustion products flow weight at nominal output	kg/s	0,010	0,012	0,015	0,018	0,022	0,025	0,034
Specified fuel (preffered)		Dry wood with a calorific value of 15 – 17 MJ/kg-1, water content 12 – 20 %, diameter 80 – 120 mm
Average fuel consumption for the heating season	kg.h-1	4,1	5,5	6,8	8,6	10	13	18
Prescribed wood length	mm	250	330	530	530	530	530	730
Combustion time at nominal output	Hours	2	2	3	2	3	3	3
The volume of water in the boiler	l	56	64	80	80	90	120	170
Boiler hydraulic loss	mbar	0,20	0,22	0,22	0,23	0,22	0,23	0,22
Minimum buffer tank volume	l	500	500	500	500	500	500	750
Connecting voltage	V/Hz	230/50
Minimum return water temperature during operation		65 °C
EKODESIGN