Delta

Strona główna Offer ARCHIWUM Charging Boilers Delta

Discontinued equipment

Availability

Discontinued equipment

Boiler type

charging

Power range

8-49 kW

Controller

none

Fuels

hard coal, wood briquette, wood, edgings

Optional equipment

draught regulator, blowing set DEFRO OPTI, NZ version for closed system, igniter, room controller, levelling legs

Additional information

large furnace chamber

Please check availability of the boiler at our distributors.

DESCRIPTION

DELTA boilers are intended for combustion of hard coal and firewood. Combustion process is mechanically controlled using knob of lifting flap in ash-pan doors. Moreover, adjustable flap for adjustment of inflow of secondary air is located in charging doors. This solution significantly improves course of combustion process and parameters of flue gas emission. To also possible to adjust combustion process using draught regulator. Furthermore, boilers are factory adapted for assembly of fan and electronic controller. The advantage of the boiler is capacious combustion chamber ensuring many hours of equipment operation and large charging doors facilitating charging of fuel.

	4 years of warranty for heat exchanger tightness, 2 years for the remaining components and efficient operation of boiler.
	Heat exchanger made of certified high-grade boiler steel;
	high thermal efficiency reaching 83% thanks to increase heat recovery from flue gases
	adapted for installation in closed circuit in version NZ*
	mechanical movable grate for removal of ash from water grates
	large furnace chamber
	adjustment of secondary air inflow
	combustion process adjustment using draught regulator* or knob in ash-pan doors
	factory adapted for installation of blowing set

(*) - extra payable equipment, installed on Customer’s request

Power range: 8-22 kW - Table no. 1

Power range: 25-49 kW - Table no. 2

Name of the boiler		Delta
Specification/boiler type	Unit	8	12	16	19	22	25	28	35	42	49
Power range	kW	2,4 -8	3,6 - 12	4,8 -16	5,7 -19	6,6 -22	7,5 -25	8,4- 28	10,5 -35	12,6 -42	14,7 -49
Heating area	m2	1,2	1,4	1,8	2,0	2,2	2,4	2,7	3,2	4,2	4,9
Area of heated rooms ¹	m2	to 110	to 140	to 180	to 200	to 230	to 250	to 280	to 350	to 440	to 500
Single fuel charging	kg	~13	~18	~23	~23	~28	~32	~37	~51	~56	~61
Optimum thermal efficiency	%	80,7-82 %
Energy efficiency class	-	D	D	C	C	D	D	D	D	D	D
Max. permissible operation pressure	bar	opened system 1,5 / closed system 2,5
Required flue gas draught	Pa	18	21	24	26	27	28	29	31	32	34
Max. temp. of water on supply	°C	65/90
Boiler weight²	kg	231	258	289	302	325	354	382	429	489	555
Boiler water tank capacity	l	49	55	70	74	82	90	98	114	136	158
Chimney section	cmxcm	14x14	14x14	14x14	14x14	15x15	16x16	16x16	18x18	20x20	21x21
Chimney section	Ø mm	160	160	160	160	165	175	185	200	220	235
Minimum chimney height	m	5	5	6	6,5	7	7	7,5	8	8	8,5
Width	mm	646	646	646	646	696	746	796	846	846	846
Depth	mm	990	1082	1094	1094	1094	1094	1094	1114	1262	1410
Height	mm	975	975	1075	1125	1125	1125	1125	1175	1178	1180
Diameter of supply and return Dn	mm	G1 ½”
Diameter of flue	mm	159	159	159	159	159	159	178	178	178	178
Height to bottom edge of the flue	mm	573	573	673	723	723	723	714	765	768	768
Dimensions of charging chamber and charging hole	width depth height width x height	258 270 240 258x208	258 365 240 258x208	258 404 280 258x238	258 404 280 258x288	308 404 280 308x288	358 404 280 358x288	408 404 280 408x288	458 424 330 458x288	458 464 330 458x288	458 504 330 458x288

¹ Maximum area of heated rooms estimated for unit heat demand q=95W/m².
² Boiler weight depends on the equipment.
³ Extra paid option, installed on the customer’s request.
⁴ Foot of mobile grate is not available for 8kW model.
⁵ Draught controller is not equipment of the boiler.