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BBW 46 / DBW 46

4 Technical Data

401

4. Technical Data

Where no threshold values are specified technical data

are understood to include standard tolerances for heater

units of ± 10 % at an ambient temperature of +20 °C and

at nominal voltage.

Electrical Components:

Control unit, motors for combustion air fan and circulation

pump, glow plug, dosing pump, switch and timer are either

12 Volt or 24 Volt components.

Temperature limiter, temperature sensor and flame

sensor are identical in 12 V and 24 V heaters.

Heater Operation BBW 46 DBW 46

Mark of conformity ~ S185 ~ S186

Type Water heater with evaporator burner

Heating flow Full load

Part load

4.6 kW

2.3 kW

Fuel Fuel Diesel

Fuel consumption Full load

Part load

0.63 l/h

0.23 l/h

0.58 l/h

0.29 l/h

Nominal voltage 12 or 24 Volt

Operating voltage range 10 ... 14 or 20 ... 28 Volt

Nominal power consumption with circulation

pump (without vehicle air fan)

Full load

Part load

44 W

33 W

Permissible ambient temperature:

Heater: - operation

- storage

Control unit: - operation

- storage

Dosing pump - operation

- storage

-40° ... + 80 °C

-40° ... +100 °C

-40° ... + 75 °C

-40° ... + 85 °C

-40° ... + 30 °C

-40° ... + 85 °C

Permissible operating overpressure

(heat carrier)

0.4 ... 2.0 bar

Heat exchanger capacity 0.25 l

Max. combustion air intake temperature +40 °C

Minimum coolout circuit capacity 4.0 l

Volume flow of circulation pump against 0.1 bar 950 l/h

in exhaust

500 m above sea level

Full load 10 ... 10.5 Vol.-%

setting values at room temperature and

geograph. height above sea level

Full load

CO with no wind

in exhaust at 100 km/h

0.1 Vol.-% max.

0.2 Vol.-% max.

HC at nominal load

in exhaust and with no wind

100 ppm (0.01 Vol.-%) max.

at nominal load

in exhaust and with no wind

200 ppm (0,02 Vol.-%) max.

Smoke spot number according to Bacharach

according to Bosch

<0,5

Dimensions length

Heater width

(Tolerance ± 3 mm) height

277 mm

148 mm

197 mm

Weight incl. circulation pump 3.2 kg

1 2 ... 8 9 10 11 12 13 14 15 16 17 18 ... 39 40

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