DBE OPTIMA

Strona główna Offer Defro Heating Technology Electric boiler DBE OPTIMA

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Power range

12kW (4/8/12 kW)
24 kW (8/16/24kW)

Supply voltage

3 x 400 V, 230 V power supply for 8-12 kW models

Max temp.

80 °C

Guarantee

2 years

Efficiency

99,6 %

Protection class

IP20

Standard equipment

servicing of mixing valve and additional central heating pump, weekly programmer for boiler operation, Control of central pump for central heating/domestic hot water, Priority of domestic hot water heating, Built-in boiler operation counter, pump protection, protection of system against freezing, co-operation with a room controller

Optional equipment

Electric switchover valve for dhw, dhw temp. sensor for container, Defro Internet wifi module, i-2 controller, i-3 Plus controller, ST-292 v3 controller, ST-292 v2 controller, ST-294 v2 controller

DESCRIPTION

The DBE OPTIMA electrical boiler is an advanced heating device ensuring service-free and safe operation. Boiler operates without emission of flue gas, what makes it one of the safest equipment dedicated for the central heating or domestic heating water systems.

Does not emit any pollutants or gases hazardous to the environment. The assembly is relatively simple and does not require high financial efforts. The boiler can be operated as a primary heating source, particularly in homes with good thermal insulation and floor heating operating on low-temperature parameters and may become the best option to choose.

It may also be operated as a secondary heat source for solid fuel, condensing boiler, fireplace, or even heat pump in the more severe winter conditions. Boiler efficiency (99.5%) allows quick obtaining of the required temperature in the room. Electric boilers from DEFRO are ideal solution for cooperation with PV system. The solutions implemented in the boilers allow increasing the auto-consumption level, what considerably shortens the return-on-investment time for the photovoltaic system. Full control of boiler from the mobile app allows controlling the boiler functions from the smartphone.”

Advantages of DEFRO DBE OPTIMA boiler:

safe and environmentally friendly
modulation of boiler maximum power
daily/weekly programmer of boiler operation
optional WiFi control
optional cooperation with dhw heat exchanger
boiler operating range from 4 to 24kW
cooperation with photovoltaic system
servicing of mixing valve and additional central heating pump
programmer for electricity consumption
operation in open and closed central heating systems
ideal for operation with floor and radiator heating
antifreeze system
antistop system
advanced system for cooling of boiler components
operating range from 5 to 80°C
ideal for cooperation with other heat source (heat pump, gas boiler, solid-fuel and fireplace)

Technical drawings

Parameter		Unit of measure	DEFRO DBE OPTIMA
			4,0/8,0/12,0	8,0/16,0/24,0
Rated power of one phase (single heater)		kW	4,0	8,0
Rated power of three phases (all heaters)		kW	12,0	24,0
Supply	single-phase network	V	1 × 230 V / 50 Hz	-
	three-phase network		3 × 400 V / 50 Hz
Fuses	single-phase network	A	1 × 63	-
	three-phase network		3 × 20	3 × 40
Nominal power consumption	single-phase network	A	1 × 52,2	-
	three-phase network		3 × 17,4	3 × 34,8
Minimalny przekrój przewodu zasilającego	single-phase network	A	3 × 10,0	-
	three-phase network		5 × 4,0	5 × 10,0
Nominal power consumption		A	3 x 17,4	3 x 29,0
Maximum allowable impedance of supply network		Ω	0,27	0,13
Max. permissible work pressure		Mpa (bar)	0,15 (1,5)
Capacity of diaphragm vessel		l	6	6
STB setting		°C	90
Setting of boiler safety valve		Mpa (bar)	0,3 (3,0)
Boiler weight		kg	27	28